A 45° embedded adjustable subway rail top exhaust valve device and exhaust system

Abstract

The present invention belongs to the technical field of exhaust technology of rail-top air ducts in subway stations, and specifically provides a 45° embedded adjustable subway rail-top exhaust valve device and exhaust system, including an air valve frame fixed around the exhaust air outlet on the inner wall of the rail-top air duct and an exhaust air duct support part surrounded by a plurality of fixed side wing plates, one end of the exhaust air duct support part is fixedly connected to the air valve frame, and the other end is suspended horizontally and provided with a plurality of adjustment holes arranged at intervals up and down, and an arc-shaped air valve plate is slidably sleeved in the exhaust air duct support part, one end of the arc-shaped air valve plate is connected to one end of the air valve frame through a rotating shaft, and the other end of the arc-shaped air valve plate is connected to the adjustment hole through a positioning pin. The device is simple, easy to install and easy to implement; by installing an adjustable subway rail-top exhaust valve device at each exhaust air outlet on the rail-top, uniform exhaust of the rail-top heat exhaust system can be achieved. Reduce the ventilation resistance of the rail-top air duct main pipe and reduce the operating energy consumption. Solve the problem of uniform exhaust of long longitudinal distances and multiple air outlets.

Description

Technical Field

[0001] The invention belongs to the technical field of subway station rail top air duct exhaust technology, and specifically relates to a 45° embedded adjustable subway rail top exhaust valve device and an exhaust system. Background Art

[0002] At present, the rail-top heat dissipation system of domestic subway stations mainly sets up rail-top heat dissipation ducts in the track area, sets up multiple groups of heat dissipation vents at the position of the heat dissipation duct facing the train air conditioning condenser to discharge the heat of the air conditioning condenser of each car, and adjusts the air flow area by adjusting the plug valve or regulating valve installed on the vents, thereby controlling the air volume passing through each vent. In order to exhaust air evenly on the top of each car of the train as much as possible, the current situation is often to adjust the area of ​​the heat dissipation vents to achieve the same exhaust volume of each heat dissipation vent, and set up heat dissipation vents with a gradually increasing total area from both ends of the rail-top duct to the middle of the platform (the area of ​​a single heat dissipation vent is the same, but the number of vents in each group gradually increases). Controlling the air volume by adjusting the gate valve or regulating valve to control the air flow area is similar to sudden throttling, which leads to large local resistance at the air outlet. The airflow direction at the air outlet collides perpendicularly with the main airflow direction in the air duct, resulting in increased resistance of the rail top heat removal system. In addition, the longitudinal distance is mostly more than 140m, making it difficult to achieve single-end exhaust of the heat exhaust fan. Therefore, the heat exhaust fan is usually set to exhaust heat from the rail top air duct at both ends of the platform at the same time, and each fan is responsible for half the length of the rail top air duct in the two up and down sections at the same time. This approach cannot achieve the linkage operation of the heat exhaust fan and the trains running in a single section. Considering that the up and down trains do not necessarily enter and exit the station at the same time, the heat exhaust fan can only operate continuously, which increases the operating energy consumption; in addition, the gate valve is inconvenient to construct and adjust, and the uniform exhaust effect of multiple air outlets is difficult to ensure. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a 45° embedded adjustable subway rail top exhaust valve device with a simple structure and low cost, which solves the above-mentioned problems of uneven exhaust and high resistance on the rail top.

[0004] To this end, the present invention provides a 45° embedded adjustable subway rail top exhaust valve device, comprising a wind valve frame fixed on the inner wall of the rail top air duct around the heat exhaust outlet and a heat exhaust air channel support portion surrounded by a plurality of fixed side wing plates, one end of the heat exhaust air channel support portion is fixedly connected to the wind valve frame, and the other end is horizontally suspended in the air and is provided with a plurality of adjustment holes arranged at intervals up and down, an arc-shaped wind valve plate is slidably sleeved in the heat exhaust air channel support portion, one end of the arc-shaped wind valve plate is connected to one end of the wind valve frame by a rotating shaft, and the other end of the arc-shaped wind valve plate is connected to the adjustment hole by a positioning pin.

[0005] Preferably, a side ear of the air valve plate is provided at the other end of the arc-shaped air valve plate, and corresponding adjustment holes are provided on both sides of the exhaust hot air channel support portion, and the side ear of the air valve plate is connected to the adjustment hole by a positioning pin.

[0006] Preferably, a connecting plate is fixedly provided on the inner wall of the rail top air duct, and the connecting plate is fixedly connected to the top end of the hot air exhaust channel support portion.

[0007] Preferably, a gap of no more than 5 mm is left between the arc-shaped air valve plate and the fixed side wing plates on both sides.

[0008] Preferably, the arc-shaped air valve plate is integrally made of a rectangular plate through an arc-shaped bending process with a radius of 600 mm.

[0009] Preferably, the arc-shaped air valve plate comprises a straight plate section and a curved section, the straight plate section forms an angle of 45° with the bottom surface of the rail top air duct, and the arc-shaped section is parallel to the bottom surface of the rail top air duct.

[0010] Preferably, the fixed side wing plate and the arc-shaped air valve plate are both made of refractory materials such as galvanized steel plates or stainless steel plates.

[0011] Preferably, the thickness of the galvanized steel plate or the stainless steel plate is 2 mm.

[0012] The present invention provides an exhaust system, comprising a rail top air duct and at least one 45° embedded adjustable subway rail top exhaust valve device, wherein the exhaust valve device is installed at the heat exhaust outlet of the rail top air duct.

[0013] Preferably, two adjacent exhaust valve devices are sealed and connected by a packaging plate.

[0014] Beneficial effects of the present invention: The 45° embedded adjustable subway rail top exhaust valve device and exhaust system provided by the present invention include an air valve frame fixed around the exhaust air outlet on the inner wall of the rail top air duct and an exhaust air duct support part surrounded by a plurality of fixed side wing plates, one end of the exhaust air duct support part is fixedly connected to the air valve frame, and the other end is suspended horizontally and provided with a plurality of adjustment holes arranged at intervals up and down, and an arc-shaped air valve plate is slidably sleeved in the exhaust air duct support part, one end of the arc-shaped air valve plate is connected to one end of the air valve frame through a rotating shaft, and the other end of the arc-shaped air valve plate is connected to the adjustment hole through a positioning pin. The device has the significant advantages of being simple, easy to install, and easy to implement, and is easy to promote, learn from, and apply in subway stations; by installing an adjustable subway rail top exhaust valve device at each exhaust air outlet on the rail top, uniform exhaust of the rail top heat exhaust system can be achieved. Reduce the ventilation resistance of the rail top air duct main pipe and reduce the operating energy consumption. Solve the problem of uniform exhaust of long longitudinal distances and multiple air outlets.

[0015] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the longitudinal section structure of the 45° embedded adjustable subway rail top exhaust valve device and the exhaust system of the present invention;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of a 45° embedded adjustable subway rail top exhaust valve device and an exhaust system of the present invention;

[0018] Figure 3 It is a plan view of a 45° embedded adjustable subway rail top exhaust valve device and an exhaust system of the present invention.

[0019] Explanation of the reference numerals: arc-shaped air valve plate 1, rotating shaft 2, air valve frame 3, fixed side wing plate 4, side ear of air valve plate 5, adjustment hole 6, air outlet 7, positioning pin 8, pulling plate 9, heat exhaust air outlet 10. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0023] like Figures 1 to 3As shown, the embodiment of the present invention provides a 45° embedded adjustable subway rail top exhaust valve device, including an air valve frame 3 fixed around the exhaust air outlet on the inner wall of the rail top air duct and an exhaust air channel support portion surrounded by a plurality of fixed side wing plates 4, one end of the exhaust air channel support portion is fixedly connected to the air valve frame 3, and the other end is horizontally suspended in the air and is provided with a plurality of adjustment holes 6 arranged at intervals up and down, and an arc-shaped air valve plate 1 is slidably sleeved in the exhaust air channel support portion, one end of the arc-shaped air valve plate 1 is connected to one end of the air valve frame 3 through a rotating shaft, and the other end of the arc-shaped air valve plate 1 is connected to the adjustment hole 6 through a positioning pin 8. The other end of the arc-shaped air valve plate 1 is connected to the adjustment hole 6 at different heights through the positioning pin 8, thereby changing the air flow area and achieving the purpose of adjusting the air volume.

[0024] The arc-shaped air valve plate arranged on the 45° embedded adjustable subway rail top exhaust valve device is hinged and rotated on the air valve frame through the rotating shaft fixed thereon; at the same time, the side ears of the air valve plate on the arc-shaped air valve plate move up and down along the arc along the adjustment holes on the fixed side wing plates, and are combined with the fixed side wing plates on both sides to adjust the air flow area of ​​the air outlet on the exhaust valve device, thereby realizing the control of the air volume of the heat exhaust outlet.

[0025] The 45° embedded adjustable subway track top exhaust valve device controls the wind flow area of ​​the air outlet by adjusting the arc-shaped air valve plate, thereby controlling the air volume of the heat exhaust outlet, and is convenient and adjustable. Since the air flow direction at the air outlet of the exhaust valve device is basically consistent with the main air flow direction in the track top air duct due to the guidance of the arc-shaped air valve plate, the impact of the air flow at the air outlet on the air flow in the main air duct is avoided, the ventilation resistance of the track top air duct main pipe is reduced, and the drag reduction effect is achieved. At the same time, the adjustable subway track top exhaust valve device is directly embedded and installed at the opening of the civil track top air duct, which is convenient and safe. It solves the problem of uniform exhaust of exhaust ducts with long longitudinal distances and multiple air outlets, and provides the possibility for a single heat exhaust fan to uniformly exhaust heat from a single-side track top air duct. Furthermore, the station track top heat exhaust system can control the start and stop of the corresponding heat exhaust fan according to the entry and exit of trains in the up and down directions, realize intermittent start and stop, and energy-saving operation, which is convenient for promotion, reference and application in subway stations.

[0026] A further solution is that the two fixed side wing plates 4 of the adjustable rail top exhaust valve device are fixed to the air valve frame 3 by bolts, and the structural stability of the fixed side wing plates 4 on both sides is strengthened by the tension plate 9, and the air valve frame 3 is fixed to the four sides of the rail top heat exhaust outlet 10 by rear bottom expansion bolts.

[0027] In a further solution, a gap of no more than 5 mm is left between the arc-shaped air valve plate 1 and the fixed side wing plates 4 on both sides, so as to ensure smooth rotation while minimizing the amount of air leakage through the gap. The arc-shaped air valve plate 1 is made of a rectangular plate that is bent into an arc (R = 600 mm) as a whole; when in the fully open state, its straight plate section forms an angle of 45° with the bottom surface of the rail top air duct 11, and the arc section is tangent to the pull-connecting plate 9 at the top of the fixed side wing plates 4 on both sides.

[0028] A further solution, for ease of installation, the opening dimensions of the rail top heat exhaust vent 10 are 1500×566 (mm) in length×width, the dimensions of the outlet 7 of the adjustable rail top exhaust valve device are 630×400 (mm) in length×height, and the dimensions of the air inlet 12 are 630×566 (mm) in length×width. Two exhaust valve devices are assembled and fixed around the rail top heat exhaust vent 10, and the gap between the two exhaust valve devices is sealed with a packaging plate 13.

[0029] Furthermore, the materials of the arc-shaped air valve plate 1, the fixed side wing plate 4 and the packaging plate 13 can be adjusted according to actual needs, and galvanized steel plates, stainless steel plates (304, thickness 2mm) and other materials that meet the fire resistance requirements of subways can be used.

[0030] The adjustable subway rail top exhaust valve device is arranged in the station rail top air duct 11, and its air inlet 12 is fixed to the surrounding of the heat exhaust air outlet 10 on the rail top by rear bottom expansion bolts, and its air outlet 7 is arranged along the main exhaust air flow direction in the rail top air duct 11. Since the air flow direction at the air outlet 7 on the exhaust device is basically consistent with the main exhaust air flow direction in the rail top air duct 11 due to the guidance of the arc-shaped air valve plate 1, the impact of the air flow at the air outlet 7 on the main air flow in the air duct is avoided, and the exhaust resistance is reduced. The air flow area of ​​the air outlet 7 is controlled by adjusting the arc-shaped air valve plate 1, and the air volume of the rail top heat exhaust air outlet 10 is adjusted. By installing an adjustable subway rail top exhaust valve device at each rail top heat exhaust air outlet, uniform exhaust of the rail top heat exhaust system can be achieved.

[0031] The working principle of the present invention is as follows: the arc-shaped air valve plate arranged on the 45° embedded adjustable subway rail top exhaust valve device is hinged and rotated on the air valve frame through the rotating shaft fixed thereon; at the same time, the air valve plate side ears on the arc-shaped air valve plate move up and down along the arc along the adjustment holes on the fixed side wing plates and surround the fixed side wing plates on both sides to form an adjustment of the air outlet flow area on the exhaust valve device, thereby realizing the control of the air volume of the heat exhaust outlet.

[0032] like Figures 1 to 3As shown, an embodiment of the present invention further provides an exhaust system, including a rail top air duct, and also including at least one 45° embedded adjustable subway rail top exhaust valve device as described in the previous item, and the exhaust valve device is installed at the heat exhaust air outlet 10 of the rail top air duct. The specific structure and working principle of the 45° embedded adjustable subway rail top exhaust valve device have been explained above and will not be repeated here. The air inlet of the 45° embedded adjustable subway rail top exhaust valve device is installed at the heat exhaust air outlet 10 of the rail top air duct, and the air outlet 7 is arranged parallel to the rail top air duct, so that the exhausted airflow is consistent with the flow direction of the main airflow in the rail top air duct, thereby reducing wind resistance.

[0033] A further solution, for ease of installation, the opening dimensions of the rail top heat exhaust vent 10 are 1500×566 (mm) in length×width, the dimensions of the outlet 7 of the adjustable rail top exhaust valve device are 630×400 (mm) in length×height, and the dimensions of the air inlet 12 are 630×566 (mm) in length×width. Two exhaust valve devices are assembled and fixed around the rail top heat exhaust vent 10, and the gap between the two exhaust valve devices is sealed with a packaging plate 13.

[0034] The 45° embedded adjustable subway track top exhaust valve device and exhaust system of the present invention controls the wind flow area of ​​the air outlet by adjusting the arc-shaped air valve plate, thereby realizing the control of the air volume of the heat exhaust air outlet, and is convenient and adjustable; since the air flow direction at the air outlet of the exhaust valve device is basically consistent with the main air flow direction in the track top air duct due to the guidance of the arc-shaped air valve plate, the impact of the air flow at the air outlet on the air flow in the main air duct is avoided, the ventilation resistance of the track top air duct main pipe is reduced, and the drag reduction effect is achieved; at the same time, the adjustable subway track top exhaust valve device is directly embedded and installed at the opening of the civil engineering track top air duct, which is convenient and safe; it solves the problem of uniform exhaust of exhaust ducts with long longitudinal distances and multiple air outlets, and provides the possibility for a single heat exhaust fan to uniformly exhaust heat from a single-side track top air duct; further, the station track top heat exhaust system can control the start and stop of the corresponding heat exhaust fan according to the entry and exit of trains in the up and down directions, thereby realizing intermittent start and stop and energy-saving operation.

[0035] The device is simple, easy to install, and easy to implement, making it easy to promote, learn from, and apply in subway stations. By installing an adjustable subway rail-top exhaust valve device at each rail-top heat exhaust vent, uniform exhaust of the rail-top heat exhaust system can be achieved. The ventilation resistance of the rail-top air duct main pipe is reduced, and the operating energy consumption is reduced. The problem of uniform exhaust over long longitudinal distances and multiple vents is solved.

[0036] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A 45° embedded adjustable rail top exhaust valve device, characterized in that: The invention comprises an air valve frame fixed around the exhaust air outlet on the inner wall of the rail top air duct and an exhaust air duct support part formed by a plurality of fixed side wing plates, wherein one end of the exhaust air duct support part is fixedly connected to the air valve frame, and the other end is suspended horizontally in the air and is provided with a plurality of adjustment holes arranged at intervals up and down, and an arc-shaped air valve plate is slidably sleeved in the exhaust air duct support part, one end of the arc-shaped air valve plate is connected to one end of the air valve frame through a rotating shaft, and the other end of the arc-shaped air valve plate is selectively connected to one of the adjustment holes through a positioning pin, so that the air flow direction at the air outlet of the exhaust valve device is consistent with the main air flow direction in the rail top air duct due to the flow guidance of the arc-shaped air valve plate; A connecting plate is fixedly provided on the inner wall of the rail top air duct, and the connecting plate is fixedly connected to the top end of the support portion of the exhaust hot air duct; the arc-shaped air valve plate comprises a straight plate section and an arc-shaped section, and when in a fully open state, the straight plate section forms an angle of 45° with the bottom surface of the rail top air duct, and the arc-shaped section is tangent to the connecting plate at the top of the fixed side wing plates on both sides; the other end of the arc-shaped air valve plate is provided with an air valve plate side ear, and the two sides of the exhaust hot air duct support portion are provided with one-to-one corresponding adjustment holes, and the air valve plate side ears are connected to the adjustment holes by positioning pins; a gap of no more than 5 mm is left between the arc-shaped air valve plate and the fixed side wing plates on both sides.

2. The 45° embedded adjustable rail top exhaust valve device according to claim 1, characterized in that: The arc-shaped air valve plate is integrally made of a rectangular plate through an arc-shaped bending process with a radius of 600 mm.

3. The 45° embedded adjustable rail top exhaust valve device according to claim 1, characterized in that: The fixed side wing plate and the arc-shaped air valve plate are both made of refractory materials such as galvanized steel plates or stainless steel plates.

4. The 45° embedded adjustable rail top exhaust valve device according to claim 3 is characterized in that: The thickness of the galvanized steel plate or the stainless steel plate is 2 mm.

5. An exhaust system, comprising a rail top air duct, characterized in that: It also includes at least one 45° embedded adjustable subway rail top exhaust valve device as described in any one of claims 1 to 4, and the exhaust valve device is installed at the heat exhaust outlet of the rail top air duct.

6. The exhaust system according to claim 5, characterized in that: Two adjacent exhaust valve devices are sealed and connected by a packaging plate.

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