A subway piston air booth air valve and ventilation system thereof

Abstract

The present invention provides a subway piston air booth air valve and a ventilation system thereof, belonging to the field of subway ventilation. In particular, it relates to a ventilation system for single-piston and double-piston switching settings and a corresponding air valve thereof. It includes a tunnel ventilation system, a fresh air introduction system, an air intake system, and an exhaust system. The tunnel ventilation system is placed on the top of the driving tunnel, and the fresh air introduction system and the air intake system are correspondingly connected to the ends of the tunnel ventilation system. The fresh air introduction system and the air intake system are connected, and the exhaust system corresponds to the driving tunnel. The driving tunnel is one of the ventilation channels. The tunnel ventilation system synchronously covers the platform, the left driving tunnel, and the right driving tunnel. The tunnel ventilation system is correspondingly provided with multiple groups of air outlets, and the air outlets are provided with electric combination valves, which can be axially moved through the valve core to perform single-piston and double-piston switching settings.

Description

Technical Field

[0001] The present invention provides a subway piston air booth air valve and a ventilation system thereof, belonging to the field of subway ventilation, and particularly relates to a ventilation system for single-piston and double-piston switching settings and a corresponding air valve thereof. Background Art

[0002] At present, subway, as a convenient and fast urban public transportation, has also attracted attention in China. More and more cities have begun to develop subway transportation systems. Subways, especially underground lines, are located in relatively closed underground spaces. Artificial environments must be created through ventilation and air-conditioning systems to meet the needs of trains, equipment, personnel and disaster prevention. The existing ventilation systems include air intake booths, exhaust booths, and fresh air booths. The existing ones are all single settings and cannot form piston-like switching. The overall action is single and cannot be adjusted quickly. In addition, the existing air valve structure is single and cannot form two-way blocking.

[0003] Publication No. CN109139079A discloses a subway tunnel ventilation system, including a station tunnel ventilation device; the station tunnel ventilation device includes a first exhaust shaft and a second exhaust shaft respectively arranged at both ends of the station, a first rail top heat exhaust duct and a second rail top heat exhaust duct respectively arranged on both sides of the station tunnel, a first exhaust duct connecting the first exhaust shaft and the first rail top heat exhaust duct, a second exhaust duct connecting the second exhaust shaft and the second rail top heat exhaust duct, and an exhaust chamber installed on the station platform; the exhaust chamber is connected to the first rail top heat exhaust duct or the second rail top heat exhaust duct.

[0004] Publication No. CN208718981U discloses a ventilation device for a subway tunnel, which belongs to the technical field of tunnel ventilation equipment, and includes an induced draft fan, a connecting square rotary circle, an adjusting device and a filtering device; a connecting square rotary circle is arranged at the left end of the induced draft fan; an adjusting device is arranged at the left end of the connecting square rotary circle; and a filtering device is arranged at the left end of the adjusting device.

[0005] In the above technology, the form is single and the single piston and double piston switching setting cannot be performed. In addition, the existing air valve structure is single and lacks two-way blocking. Summary of the invention

[0006] The present invention provides a subway piston air booth air valve and a ventilation system thereof, and provides a ventilation system that switches between single piston and double piston by arranging air valves between air booth pipe bodies. The system has a simple structure and is easy to use.

[0007] A subway piston air booth ventilation system of the present invention is implemented as follows: the subway piston air booth ventilation system of the present invention comprises a tunnel ventilation system, a fresh air introduction system, an air intake system, and an exhaust system. The tunnel ventilation system is placed on the top of the driving tunnel. The fresh air introduction system and the air intake system are incorporated into the ends of the tunnel ventilation system and are correspondingly connected. The fresh air introduction system and the air intake system are connected. The exhaust system corresponds to the driving tunnel. The driving tunnel is used as one of the ventilation channels. The above systems are correspondingly connected through pipelines. The tunnel ventilation system synchronously covers the platform, the left driving tunnel, and the right driving tunnel. The tunnel ventilation system is correspondingly provided with a plurality of groups of air outlets, and an electric combination valve is provided on the air outlet;

[0008] The fresh air introduction system includes a fresh air pavilion, which is provided with a fan and an air purification station. The fresh air introduction system is provided with two groups, which are placed at the ends of the driving tunnel. The fresh air introduction system and the air intake system are connected in parallel and connected by pipelines. The air intake system includes a piston pavilion, and the fresh air pavilion and the piston pavilion are provided with air purification stations.

[0009] An air noise reduction station is arranged on the pipeline, a fan is arranged on the pipeline accordingly, an air valve is arranged between the fresh air booth and the piston booth, the air valve forms a connecting drainage for the corresponding fan, and the fresh air booth is directly connected to the driving tunnel through the pipeline;

[0010] The exhaust system includes an exhaust booth, which is provided with two parallel pipelines, on which fans and air noise reduction stations are provided, and the fans are provided with energy storage stations correspondingly, and the parallel pipelines are connected to the fresh air booth correspondingly, and the connection point is located at the rear end of the fans;

[0011] The air valve comprises a three-way pipe, a sealing ring, a valve core, an end sealing ring, an outer guide ring, and a connecting pipe. The three-way pipe is connected to the air inlet pipe and the fresh air pipe through the connecting pipe. The limiting ring is arranged on the inner wall of the connecting pipe and extends into the three-way pipe. The three-way pipe is provided with a valve core, inner concave holes are arranged at both ends of the valve core, a sealing ring is arranged on the outer edge of the valve core, an arc groove is arranged on the outer side wall of the valve core, the outer guide ring is arranged in the arc groove, the limiting ring is provided with an inclined surface corresponding to the valve core, and the end sealing ring is arranged at the lower part of the three-way pipe;

[0012] The valve core is provided with an inner spiral wheel, which is correspondingly placed in the inner concave holes at both ends of the valve core, and the spiral directions of the spiral wheels at both ends are consistent. An inner bushing is provided between the outer guide ring and the tee pipe, and an inner sealing bushing is provided on the inner wall of the tee pipe mouth;

[0013] The electric combination valve is provided with a double-layer valve plate, which includes a fixed frame, an inner sealing bushing, a fixed frame, a hinged shaft, a valve plate, a sealing gasket, a driving gear, and a driving shaft. An inner sealing bushing is provided in the fixed frame, and a driving shaft is provided in the radial direction on the fixed frame. A driving motor is provided on the outer side of the fixed frame, and the driving motor corresponds to the driving shaft and is connected to form a transmission. A driving gear is provided on the driving shaft, and two groups of fixed frames are provided on both sides of the driving gear. The fixed frames are placed in the fixed frame through the fixed shaft. The fixed frames are in groups of two, and driven teeth are provided on the fixed frames. The driven teeth between the two fixed frames in the same group are correspondingly meshed. The fixed frames are symmetrically placed on both sides of the driving gear. A valve plate is provided on the fixed frame, and the valve plate is hingedly placed on the fixed frame. The valve plates on the two fixed frames in the same group are combined to form a circular structure. One of the fixed frames in the same group is meshed with the driving gear, and the valve plates are correspondingly overlapped and placed on the inner sealing bushing.

[0014] The valve plate is provided with a sealing gasket, which is correspondingly placed on the valve plate and extends to the edge of the valve plate;

[0015] The fixing frame is provided with a sealing strip, which extends radially and fits with the edge of the fixing frame, and the valve plate is correspondingly placed on the inner sealing bushing for fitting and sealing.

[0016] Beneficial effects:

[0017] 1. The valve core can be moved axially to switch between single piston and double piston;

[0018] 2. The opening and closing of the electric combination valve is fixed in both directions, and the double-layer closure improves the sealing performance;

[0019] 3. Through the tunnel air volume, the valve core is caused to move axially in the three-way pipe to perform switching settings;

[0020] 4. The fresh air booth is directly connected to the driving tunnel, and fresh air is sucked in through the movement of vehicles;

[0021] 5. Simple structure and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a subway piston wind pavilion ventilation system of the present invention.

[0023] Figure 2 This is a schematic diagram of the structural domain of a subway piston wind pavilion air valve according to the present invention.

[0024] Figure 3 The present invention is a three-dimensional structural diagram of a valve core of a subway piston wind pavilion air valve.

[0025] Figure 4 The present invention is a schematic diagram of the end of a valve core of a subway piston wind booth air valve.

[0026] Figure 5 The present invention is a schematic structural diagram of an electric combination valve of a subway piston air booth air valve.

[0027] In the attached figure:

[0028] 1. Left-driving tunnel; 2. Right-driving tunnel; 3. Fan; 4. Pipeline; 5. Air purification station; 6. First fresh air booth; 7. First piston booth; 8. Energy storage station; 9. Exhaust booth; 10. Second piston booth; 11. Second fresh air booth; 12. Air valve; 13. Air noise reduction station; 14. Electric combination valve; 15. Top air duct; 41. Air inlet pipe; 42. Fresh air pipe; 121. Tee pipe; 122. Sealing ring; 123. Valve core; 124. End sealing ring; 125. Outer guide ring; 126. Connecting pipe; 127. Inner spiral wheel; 141. Fixed frame; 142. Inner sealing bushing; 143. Fixed frame; 144. Sealing strip; 145. Articulated shaft; 146. Valve plate; 147. Sealing pad; 148. Active gear; 149. Drive shaft. DETAILED DESCRIPTION

[0029] A subway piston wind booth ventilation system of the present invention is implemented as follows: a subway piston wind booth ventilation system of the present invention: includes a tunnel ventilation system, a fresh air introduction system, an air intake system, and an exhaust system. The tunnel ventilation system is placed on the top of the driving tunnel, and the fresh air introduction system and the air intake system are incorporated into the ends of the tunnel ventilation system and are correspondingly connected. The fresh air introduction system and the air intake system are connected, and the exhaust system and the driving tunnel correspond. The driving tunnel serves as one of the ventilation channels. The above systems are correspondingly connected through pipelines. The tunnel ventilation system synchronously covers the platform, the left driving tunnel, and the right driving tunnel. The tunnel ventilation system is correspondingly provided with multiple groups of air outlets, and the air outlets are provided with electric combination valves; the fresh air introduction system includes a fresh air booth, and the fresh air booth is correspondingly provided with a fan and an air purification station. The fresh air introduction system is provided with two groups, which are correspondingly placed at the ends of the driving tunnel. The fresh air introduction system and the air intake system are correspondingly provided with a fan and an air purification station. The systems are connected in parallel and connected through pipelines in the middle. The air intake system includes a piston booth, and the fresh air booth and the piston booth are correspondingly provided with an air purification station; an air noise reduction station is provided on the pipeline, and a fan is correspondingly provided on the pipeline. An air valve is provided between the fresh air booth and the piston booth, and the air valve forms a connecting drainage corresponding to the fan. The fresh air booth is directly connected to the driving tunnel through the pipeline; the exhaust system includes an exhaust booth, and the exhaust booth is provided with two parallel pipelines, and a fan and an air noise reduction station are provided on the pipeline. The fan is correspondingly provided with an energy storage station, and the parallel pipelines are correspondingly connected to the fresh air booth, and the connection point is located at the rear end of the fan; fresh air is introduced through the fresh air booth, and corresponding mixing compensation is performed in the air intake booth. Piston suction is performed through the closed setting formed in the driving tunnel, and transmission is formed by connecting the exhaust booth to the fan, and pressure is transmitted through the tunnel to drive the fan and form energy storage;

[0030] The air valve comprises a three-way pipe, a sealing ring, a valve core, an end sealing ring, an outer guide ring, and a connecting pipe. The three-way pipe is connected with the air inlet pipe and the fresh air pipe through the connecting pipe. The limiting ring is placed on the inner wall of the connecting pipe and extends into the three-way pipe. A valve core is arranged in the three-way pipe, inner concave holes are arranged at both ends of the valve core, a sealing ring is arranged on the outer edge of the valve core, an arc groove is arranged on the outer wall of the valve core, the outer guide ring is placed in the arc groove, and an inclined surface corresponding to the valve core is arranged on the limiting ring. A fast single-piston and double-piston connection is formed through the switching of the valve core, and the fresh air pavilion is used as another air inlet pavilion. The valve core is provided with an inner spiral wheel, which is correspondingly placed in the inner concave holes at both ends of the valve core. The spiral directions of the spiral wheels at both ends are consistent. An inner sleeve is arranged between the outer guide ring and the three-way pipe, and an inner sealing sleeve is arranged on the inner wall of the three-way pipe mouth to form corresponding sliding, and the valve core is axially moved along the three-way pipe to form the corresponding connection setting switching of the three-way pipe;

[0031] The electric combination valve is provided with a double-layer valve plate, and the electric combination valve includes a fixed frame, an inner sealing bushing, a fixed frame, a hinged shaft, a valve plate, a sealing gasket, a driving gear, and a driving shaft. The fixed frame is provided with an inner sealing bushing, and the fixed frame is provided with a driving shaft arranged radially. A driving motor is provided on the outer side of the fixed frame. The driving motor and the driving shaft correspond to each other and are connected to form a transmission. A driving gear is provided on the driving shaft. Two groups of fixed frames are provided on both sides of the driving gear. The fixed frames are placed in the fixed frame through the fixed shaft. The fixed frames are in groups of two. The fixed frames are provided with driven teeth. The driven teeth of the two fixed frames in the same group are meshed with each other. The fixed frames are symmetrically placed on both sides of the driving gear. A valve plate is provided, and the valve plate is hingedly placed on a fixed frame. The valve plates on the two fixed frames in the same group are combined to form a circular structure. One of the fixed frames in the same group is meshed with a driving gear, and the valve plate is overlapped and placed on an inner sealing sleeve accordingly. A sealing gasket is provided on the valve plate, and the sealing gasket is placed on the valve plate accordingly. The sealing gasket extends to the edge of the valve plate, and the corresponding transmission is performed through the rotation of the driving motor to make the fixed frame flip over and cooperate with the valve plate to unfold, forming a two-way unfolding, and the two groups open and close synchronously to improve the sealing performance. A sealing strip is provided on the fixed frame, and the sealing strip extends radially and fits with the edge of the fixed frame accordingly. The valve plate is placed on the inner sealing sleeve accordingly for fit and sealing.

[0032] The present invention and its implementation methods are described above, but such description is not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A subway piston wind pavilion ventilation system, comprising a tunnel ventilation system, a fresh air introduction system, an air intake system, and an exhaust system, characterized in that: The tunnel ventilation system is placed on the top of the driving tunnel, the fresh air introduction system and the air intake system are incorporated into the ends of the tunnel ventilation system and are correspondingly connected, the fresh air introduction system and the air intake system are connected, the exhaust system and the driving tunnel correspond, the driving tunnel serves as one of the ventilation channels, the above systems are correspondingly connected through pipelines (4), the tunnel ventilation system simultaneously covers the platform, the left driving tunnel (1), and the right driving tunnel (2), the tunnel ventilation system is correspondingly provided with a plurality of groups of air outlets, and the air outlets are provided with electric combination valves (14); The fresh air introduction system comprises a fresh air pavilion, and the fresh air pavilion is provided with a fan (3) and an air purification station (5) correspondingly. The fresh air introduction system is provided with two groups, which are placed at the ends of the driving tunnel respectively. The fresh air introduction system and the air intake system are connected in parallel respectively, and are connected in the middle by a pipeline (4). The air intake system comprises a piston pavilion, and the fresh air pavilion and the piston pavilion are provided with an air purification station (5) correspondingly. An air noise reduction station (13) is arranged on the pipeline (4), a fan (3) is correspondingly arranged on the pipeline (4), a wind valve (12) is arranged between the fresh air booth and the piston booth, the wind valve (12) forms a connecting drainage for the corresponding fan (3), and the fresh air booth is directly connected to the driving tunnel through the pipeline (4); The exhaust system comprises an exhaust booth (9), the exhaust booth (9) is provided with two parallel pipelines (4), a fan (3) and an air noise reduction station (13) are provided on the pipelines (4), the fan (3) is provided with an energy storage station (8) correspondingly, the parallel pipelines (4) are connected to the fresh air booth correspondingly, and the connection point is located at the rear end of the fan (3); The air valve (12) comprises a three-way pipe (121), a sealing ring (122), a valve core (123), an end sealing ring (124), an outer guide ring (125), and a connecting pipe (126). The three-way pipe (121) is connected to the air inlet pipe (41) and the fresh air pipe (42) via the connecting pipe (126). The limiting ring is arranged on the inner wall of the connecting pipe (126) and extends into the three-way pipe (121). The three-way pipe (121) is provided with a valve core (123). Both ends of the valve core (123) are provided with inner concave holes. The outer edge of the valve core (123) is provided with a sealing ring (122). The outer side wall of the valve core (123) is provided with an arc groove. The outer guide ring (125) is placed in the arc groove. The limiting ring is provided with an inclined surface corresponding to the valve core (123). The end sealing ring is arranged at the lower part of the three-way pipe.

2. A subway piston air booth ventilation system according to claim 1, characterized in that: The valve core (123) is provided with an inner spiral wheel (127), which is correspondingly placed in the inner concave holes at both ends of the valve core (123), and the spiral directions of the spiral wheels at both ends are consistent. An inner bushing is provided between the outer guide ring (125) and the three-way pipe (121), and an inner sealing bushing (142) is provided on the inner wall of the mouth of the three-way pipe (121).

3. The subway piston air booth ventilation system according to claim 1, characterized in that: The electric combination valve (14) is provided with a double-layer valve plate (146). The electric combination valve (14) comprises a fixed frame (141), an inner sealing bushing (142), a fixed frame (143), a hinge shaft (145), a valve plate (146), a sealing gasket (147), a driving gear (148), and a driving shaft (149). The fixed frame (141) is provided with an inner sealing bushing (142). The fixed frame (141) is provided with a driving shaft (149) arranged radially. A driving motor is provided outside the fixed frame (141). The driving motor and the driving shaft (149) correspond to each other and are connected to form a transmission. The driving shaft (149) is provided with a driving gear (148). The driving gear (148) Two groups of fixing frames (143) are arranged on both sides. The fixing frames (143) are arranged in a fixing frame (141) via a fixing shaft. The fixing frames (143) are arranged in groups of two. The fixing frames (143) are provided with driven teeth. The driven teeth of the two fixing frames (143) in the same group are correspondingly meshed. The fixing frames (143) are symmetrically arranged on both sides of the driving gear. The fixing frames (143) are provided with valve plates (146). The valve plates (146) are hingedly arranged on the fixing frames (143). The valve plates (146) on the two fixing frames (143) in the same group are combined to form a circular structure. One of the fixing frames (143) in the same group is meshed with the driving gear. The valve plates (146) are correspondingly overlapped and arranged on the inner sealing bushing (142).

4. A subway piston air booth ventilation system according to claim 3, characterized in that: The valve plate (146) is provided with a sealing gasket (147), and the sealing gasket (147) is correspondingly placed on the valve plate (146), and the sealing gasket (147) extends to the edge of the valve plate (146).

5. The subway piston air booth ventilation system according to claim 3, characterized in that: The fixing frame (143) is provided with a sealing strip (144), which extends radially and is in close contact with the edge of the fixing frame (141). The valve plate (146) is in close contact with the inner sealing sleeve (142) for sealing.

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