Adjustable combined air valve for subway ventilation and control method thereof

Abstract

The present application relates to the technical fields of ventilation regulating valve control, and especially relates to a subway ventilation regulating combined air valve and a control method thereof, which comprises a first assembly pipe and a second assembly pipe for being installed on a subway ventilation pipe, a structure-adjustable middle flow guide pipe is arranged between the first assembly pipe and the second assembly pipe, and the structure-adjustable middle flow guide pipe is movably assembled with an electrically-controlled flow guide closing mechanism at the connecting end of the first assembly pipe and the second assembly pipe. The subway ventilation regulating combined air valve and the control method thereof can be directly assembled and fixed on the existing ventilation pipe through modular design, and the installation operation is simple, the matching cost is low, and the popularization and promotion are convenient. The distance of the whole equipment can be adjusted according to the installation needs, so that it can be applied to ventilation pipes with different distances, and the equipment can be reduced in size during storage and transportation, and the installation, storage and transportation are more convenient.

Description

Technical Field

[0001] This invention relates to the field of ventilation regulating valve control technology, and in particular to a regulating combined air valve for subway ventilation and its control method. Background Technology

[0002] To ensure air quality and improve air circulation inside subway stations, numerous ventilation ducts are installed. To maintain airflow balance within these ducts, regulating valves are installed at their connections. These valves typically consist of a valve body and a actuator, used to regulate and control airflow. They offer advantages such as high reliability, ease of operation, and high precision, and are therefore widely used in buildings.

[0003] Existing air valves are mainly operated by personnel or automatically controlled by electrical equipment. However, regardless of the method, they only control the airflow in a single duct and cannot adjust the airflow in different ducts. Moreover, due to their structural design, traditional air valves increase internal air resistance when not in use, resulting in increased internal energy consumption. Summary of the Invention

[0004] The technical problem that this invention aims to solve is that traditional air valves cannot adjust the air volume inside different pipes, and their structural design increases internal air resistance when not in use, resulting in increased internal energy consumption.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a regulating combined air valve for subway ventilation, including a first assembly pipe and a second assembly pipe for installation on a subway ventilation duct, wherein a structurally adjustable central guide pipe is provided between the first assembly pipe and the second assembly pipe, and an electrically controlled guide closure mechanism is movably mounted at the connection end of the structurally adjustable central guide pipe at both the first assembly pipe and the second assembly pipe, and a pressure sensor controller for detecting the internal air volume is mounted on the outer surface of the electrically controlled guide closure mechanism.

[0006] The adjustable flow guide tube includes a lateral connecting pipe fixed at the connection end of the first assembly pipe and the second assembly pipe, a central flow guide tube sleeved on the outer surface of the lateral connecting pipe, and a bolt locking mechanism installed on the outer surfaces of the lateral connecting pipe and the central flow guide tube.

[0007] The electrically controlled flow guiding and closing mechanism includes an electrically controlled adjusting support rod fixedly mounted on the outer side of the central flow guiding pipe, a rotating adjusting shaft movably mounted at the connection end between the lateral connecting pipe and the first assembly pipe and the second assembly pipe, a flipping flow guiding plate fixed on the outer side of the rotating adjusting shaft, a lateral linkage shaft movably mounted on the inner walls of both sides of the lateral connecting pipe, a flipping linkage plate fixed on the outer side of the lateral linkage shaft, an external control rod fixed on the outer end of the rotating adjusting shaft, and an external transmission shaft for transmitting and connecting the rotating adjusting shaft and the lateral linkage shaft.

[0008] The bolt locking mechanism includes a guide screw fixed on the outer side of the central guide tube, a locking nut threaded onto the outer side of the guide screw, and an outer bending frame fixed on the outer side of the lateral connecting tube. The guide screw is connected to the inner side of the outer bending frame by being inserted laterally into the outer bending frame.

[0009] The side wall of the flip-up guide plate is provided with an internal assembly port, and the internal assembly port is fitted with fixed mounting bases on both sides for installing pressure sensor controllers.

[0010] The outer side of the lateral connecting pipe is fixedly fitted with an external protective cover around the rotating adjustment shaft, the lateral linkage shaft and the external transmission shaft. The rotating adjustment shaft and the external transmission shaft and the lateral linkage shaft and the external transmission shaft are connected by a gear transmission group.

[0011] The first assembly tube and the second assembly tube are both provided with lateral assembly openings on their outer sides. A detachable closed cover plate is fixedly installed inside each lateral assembly opening. The inner side of each lateral assembly opening has an integrally structured narrowing frame. The outer sides of the first assembly tube and the second assembly tube are movably fitted with a flip-type outer assembly frame around the lateral assembly opening. The inner side of the narrowing frame is provided with an inner locking notch that cooperates with the flip-type outer assembly frame.

[0012] The lateral connecting pipe has lateral mounting screw holes on its outer surface.

[0013] A control method for a regulating combined air valve for subway ventilation includes the following steps:

[0014] S1. First, adjust the length of the adjustable guide tube in the structure according to the two parallel air ducts. Then, use the bolt locking mechanism to lock and fix the length of the adjustable guide tube in the structure.

[0015] S2, then the first assembly pipe and the second assembly pipe are respectively fitted and fixed to the splicing end of the corresponding air duct. Then the detachable closed cover plate on the assembly surface is removed to expose the side assembly port with the internal constriction frame. Then the side connecting pipe is inserted into the side loading and unloading port. The assembly bolts in the flip-type external assembly frame are screwed into the side assembly screw holes to complete the assembly and fixation.

[0016] S3, after installation, the flip-up guide plate closes the side loading and unloading port in the initial state. Then, the pressure sensor controller monitors the air volume inside the first assembly pipe and the second assembly pipe respectively. When the air volume on one side is less than that on the other side, the pressure sensor controller on the side with larger air volume will control the electric control adjustment support rod to extend to the side with smaller air volume. Then, the external control rod controls the rotation adjustment shaft, thereby synchronously driving the side linkage shaft and the external transmission shaft to rotate. At this time, the flip-up guide plate on the side with smaller air volume and the flip-up guide plate on the side with larger air volume flip in the same direction, guiding the air on the side with larger air volume into the interior of the structurally adjustable middle guide pipe, and then guiding it from the structurally adjustable middle guide pipe to the side with smaller air volume, thereby achieving the effect of consistent air volume on both sides of the air duct.

[0017] S4, while the flipping guide plate flips, it controls the flipping linkage plates on both sides to flip in the same direction, thereby forming a matching guide slope with the flipping guide plate, thus reducing the resistance inside the guide tube in the adjustable structure.

[0018] S5, the pressure sensor controller detects the pressure on both sides of the flip guide plate, thereby accurately calculating the actual adjusted pressure inside the air ducts on both sides.

[0019] The beneficial effects of this invention are:

[0020] (1) The adjustable combined air valve for subway ventilation and its control method of the present invention adopts a modular design, which can be directly assembled and fixed on existing ventilation ducts. The installation and operation are simple, the supporting cost is low, and it is convenient to popularize and promote.

[0021] (2) The spacing of the entire equipment can be adjusted according to the installation needs, so that it can be used for ventilation pipes of different distances. It can also be reduced in size when storing and transporting, making installation, storage and transportation more convenient.

[0022] (3) By using a built-in pressure sensor controller, the angle of the flip-up guide vanes on both sides can be adjusted, which can ensure that the air volume inside different ventilation ducts is consistent, thereby improving the control effect.

[0023] (4) By using the flip-link plate that works in conjunction with the flip-guide plate, the internal wind resistance can be greatly reduced, the influence of the guide on the internal air volume can be reduced, and energy consumption can be reduced.

[0024] (5) By adopting an externally mounted electric control adjustment strut, the angles of the flip guide plate and the flip linkage plate can be adjusted synchronously. Only a single drive unit is needed to control all components to drive synchronously, which is low-cost, easy to operate, and reduces the cost of use.

[0025] (6) The entire equipment can be connected to multiple ventilation ducts, providing rich external expansion functionality;

[0026] (7) It adopts a detachable structure design, which is convenient for installation and disassembly. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the electrically controlled flow-closing mechanism located inside the adjustable flow-guiding tube in this invention.

[0030] Figure 3 This is a schematic diagram of the electrically controlled flow-closing mechanism located at the bottom of the adjustable flow-guiding tube in this invention.

[0031] Figure 4 This is a schematic diagram of the bolt locking mechanism in this invention.

[0032] Figure 5 This is the control flowchart of the present invention. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Figure 1 , Figure 2 , Figure 3 and Figure 5 The adjustable combined air valve for subway ventilation shown in the figure includes a first assembly pipe 1 and a second assembly pipe 2 for installation on the subway ventilation duct. An adjustable central guide pipe is provided between the first assembly pipe 1 and the second assembly pipe 2. The adjustable central guide pipe is movably equipped with an electrically controlled guide closure mechanism at the connection end of the first assembly pipe 1 and the second assembly pipe 2. A pressure sensor controller 3 for detecting the internal air volume is installed on the outer surface of the electrically controlled guide closure mechanism.

[0036] To accommodate length adjustment, the adjustable flow guide tube includes a lateral connecting pipe 4 fixed at the connection end of the first assembly pipe 1 and the second assembly pipe 2, a central flow guide tube 5 sleeved on the outer surface of the lateral connecting pipe 4, and a bolt locking mechanism 6 installed on the outer surfaces of the lateral connecting pipe 4 and the central flow guide tube 5.

[0037] The lateral connecting pipe 4 has a lateral flow guide shroud on the outer side of the inner side of the central flow guide pipe 5 to improve internal flow guidance and prevent air leakage.

[0038] To facilitate electric adjustment, the electrically controlled flow-guiding closure mechanism includes an electrically controlled adjustment support rod 7 fixedly mounted on the outer side of the central flow-guiding pipe 5, a rotating adjustment shaft 8 movably mounted on the connection end between the lateral connecting pipe 4 and the first assembly pipe 1 and the second assembly pipe 2, a flipping flow-guiding plate 9 fixed on the outer side of the rotating adjustment shaft 8, a lateral linkage shaft 10 movably mounted on the inner walls of both sides of the lateral connecting pipe 4, a flipping linkage plate 11 fixed on the outer side of the lateral linkage shaft 10, an external control rod 12 fixed on the outer end of the rotating adjustment shaft 8, and an external transmission shaft 13 for transmitting power between the rotating adjustment shaft 8 and the lateral linkage shaft 10.

[0039] The electrically controlled adjusting strut 7 is existing technology. The external control rod 12 includes an arc-shaped control arm fixed to the outer end of the rotating adjusting shaft 8, a flipping connecting rod movably mounted on the outer end of the arc-shaped control arm, and a squeezing tube movably connected to the other side of the flipping connecting rod. The squeezing tube is axially sleeved on the outer side of the telescopic section of the electrically controlled adjusting strut 7. The installation position of the squeezing tube and the telescopic section of the electrically controlled adjusting strut 7 is adjusted according to the position between the lateral connecting pipe 4 and the central guide pipe 5.

[0040] like Figure 4 As shown, in order to accommodate length adjustment, the bolt locking mechanism 6 includes a guide screw 61 fixed on the outer side of the central guide tube 5, a locking nut 62 threaded onto the outer side of the guide screw 61, and an outer bending frame 63 fixed on the outer side of the lateral connecting tube 4. The guide screw 61 is connected to the inner side of the outer bending frame 63 by being inserted laterally into the outer bending frame 63.

[0041] To facilitate assembly, an internal assembly port is provided on the side wall of the flip-up guide plate 9, and a fixed mounting base 14 for mounting the pressure sensor controller 3 on both sides is snapped into the internal assembly port.

[0042] The fixed mounting base 14 is fixedly assembled with the flip guide plate 9 by snapping into the internal assembly port. Then, fixing slots for installing the pressure sensor controller 3 are opened on both sides of the fixed mounting base 14, so that pressure can be monitored on both sides of the flip guide plate 9 at the same time.

[0043] A wire placement hole is provided inside the internal assembly port. The wire passes through the inside of the flip guide plate 9 and the rotating adjustment shaft 8 and is connected to the control box fixed on the outer side of the lateral connecting pipe 4. Then, the existing main control chip inside the control box is used to connect to the electric control adjustment support rod 7.

[0044] In order to cooperate with the external synchronous transmission, the outer side of the lateral connecting pipe 4 is fixedly equipped with an external protective cover 15 around the rotation adjustment shaft 8, the lateral linkage shaft 10 and the external transmission shaft 13. The rotation adjustment shaft 8 and the external transmission shaft 13 and the lateral linkage shaft 10 and the external transmission shaft 13 are connected by a gear transmission group 16.

[0045] The gear transmission assembly 16 includes transmission teeth axially fixed to the bottom outer side of the rotation adjustment shaft 8 and the lateral linkage shaft 10, and drive teeth axially fixed to both ends of the external transmission shaft 13. The drive teeth at both ends of the external transmission shaft 13 mesh with the transmission teeth at the bottom outer side of the rotation adjustment shaft 8 and the lateral linkage shaft 10, respectively.

[0046] To facilitate lateral assembly and closure, lateral assembly openings are provided on the outer surfaces of the first assembly tube 1 and the second assembly tube 2. A detachable closing cover plate 17 is fixedly installed inside each lateral assembly opening. An integrally structured narrowing frame 18 is provided on the inner surface of the lateral assembly opening. A flip-type external assembly frame 19 is movably installed on the outer surfaces of the first assembly tube 1 and the second assembly tube 2 around the lateral assembly opening. An inner locking notch 20 that cooperates with the flip-type external assembly frame 19 is provided on the inner side of the narrowing frame 18.

[0047] To facilitate bolt fixing, a lateral mounting screw hole 21 is provided on the outer side of the lateral connecting pipe 4.

[0048] The maximum flip angle of the flip-type external assembly frame 19 is 90°. When the detachable closed cover plate 17 is fixed, the inner end of the assembly bolt is stuck inside the inner locking notch 20, and the other side passes through the mounting through hole on the detachable closed cover plate 17. The flip-type external assembly frame 19 is flipped 90° to the side assembly port position and then fixed with the nut thread on the flip-type external assembly frame 19. When the side connecting pipe 4 is fixed, the detachable closed cover plate 17 is removed, and then the side connecting pipe 4 is inserted into the side assembly port. The inner section fits the constriction frame 18, the flip-type external assembly frame 19 is flipped outward, and then the assembly bolt inside the flip-type external assembly frame 19 is screwed into the side assembly screw hole 21 for fixation.

[0049] A control method for a regulating combined air valve for subway ventilation includes the following steps:

[0050] S1. First, adjust the length of the adjustable guide tube according to the two parallel air ducts, and then use the bolt locking mechanism 6 to lock and fix the length of the adjustable guide tube.

[0051] S2, then the first assembly pipe 1 and the second assembly pipe 2 are respectively fitted and fixed to the splicing end of the corresponding air duct. Then the detachable closed cover plate 17 on the assembly surface is removed to expose the side assembly port with the internal shrink frame 18. Then the side connecting pipe 4 is inserted into the side loading and unloading port. The assembly bolts in the flip-type external assembly frame 19 are screwed into the side assembly screw holes 21 to complete the assembly and fixation.

[0052] S3, after installation, the flip guide plate 9 closes the side loading and unloading port in the initial state. Then, the pressure sensor controller 3 monitors the air volume inside the first assembly pipe 1 and the second assembly pipe 2 respectively. When the air volume on one side is less than that on the other side, the pressure sensor controller 3 on the side with larger air volume will control the electric control adjustment support rod 7 to extend to the side with smaller air volume. Then, the external control rod 12 controls the rotation adjustment shaft 8, thereby synchronously driving the side linkage shaft 10 and the external transmission shaft 13 to rotate. At this time, the flip guide plate 9 on the side with smaller air volume and the flip guide plate 9 on the side with larger air volume flip in the same direction, guiding the air on the side with larger air volume to the interior of the structurally adjustable middle guide pipe, and then guiding it from the structurally adjustable middle guide pipe to the side with smaller air volume, thereby achieving the effect of consistent air volume on both sides of the air duct.

[0053] S4, while the flipping guide plate 9 flips, the flipping linkage plates 11 on both sides will be controlled to flip in the same direction, thereby forming a matching guide slope with the flipping guide plate 9, thereby reducing the resistance inside the guide tube in the adjustable structure.

[0054] S5, the pressure sensor controller 3 detects the pressure on both sides of the flip guide plate 9, thereby accurately calculating the actual adjusted pressure inside the air ducts on both sides.

[0055] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A regulating combined air valve for subway ventilation, comprising a first assembly pipe (1) and a second assembly pipe (2) for installation on a subway ventilation duct, characterized in that: An adjustable central guide tube is provided between the first assembly tube (1) and the second assembly tube (2). The adjustable central guide tube is equipped with an electrically controlled guide closure mechanism at the connection end of the first assembly tube (1) and the second assembly tube (2). A pressure sensor controller (3) for detecting the internal air volume is installed on the outer surface of the electrically controlled guide closure mechanism. The adjustable flow guide tube includes a lateral connecting pipe (4) fixed at the connection end of the first assembly pipe (1) and the second assembly pipe (2), a central flow guide tube (5) sleeved on the outer side of the lateral connecting pipe (4), and a bolt locking mechanism (6) installed on the outer side of the lateral connecting pipe (4) and the central flow guide tube (5). The electrically controlled flow guiding and closing mechanism includes an electrically controlled adjusting support rod (7) fixedly mounted on the outer side of the central flow guiding pipe (5), a rotating adjusting shaft (8) movably mounted on the connection end of the lateral connecting pipe (4) and the first assembly pipe (1) and the second assembly pipe (2), a flipping flow guiding plate (9) fixed on the outer side of the rotating adjusting shaft (8), a lateral linkage shaft (10) movably mounted on the inner walls of both sides of the lateral connecting pipe (4), a flipping linkage plate (11) fixed on the outer side of the lateral linkage shaft (10), an external control rod (12) fixed on the outer end of the rotating adjusting shaft (8), and an external transmission shaft (13) for transmitting and connecting the rotating adjusting shaft (8) and the lateral linkage shaft. The first assembly tube (1) and the second assembly tube (2) are provided with lateral assembly ports on their outer surfaces. A detachable closed cover plate (17) is fixedly installed inside the lateral assembly port. The inner side of the lateral assembly port has an integrally structured narrowing frame (18). The outer side of the first assembly tube (1) and the second assembly tube (2) are movably equipped with a flip-type outer assembly frame (19) around the lateral assembly port. The inner side of the narrowing frame (18) is provided with an inner locking notch (20) that cooperates with the flip-type outer assembly frame (19).

2. The regulating combined air valve for subway ventilation according to claim 1, characterized in that: The bolt locking mechanism (6) includes a guide screw (61) fixed on the outer side of the central guide pipe (5), a locking nut (62) threaded onto the outer side of the guide screw (61), and an outer bending frame (63) fixed on the outer side of the lateral connecting pipe (4). The guide screw (61) is connected to the inner side of the outer bending frame (63) by transverse insertion into the outer bending frame (63).

3. The regulating combined air valve for subway ventilation according to claim 1, characterized in that: An internal assembly port is provided on the side wall of the flip guide plate (9), and a fixed mounting base (14) for installing pressure sensor controller (3) is snapped into the internal assembly port.

4. The regulating combined air valve for subway ventilation according to claim 1, characterized in that: The outer side of the lateral connecting pipe (4) is fixedly fitted with an external protective cover (15) around the rotation adjustment shaft (8), the lateral linkage shaft (10) and the external transmission shaft (13). The rotation adjustment shaft (8) and the external transmission shaft (13) and the lateral linkage shaft (10) and the external transmission shaft (13) are connected by a gear transmission group (16).

5. The regulating combined air valve for subway ventilation according to claim 2, characterized in that: The lateral connecting pipe (4) has a lateral mounting screw hole (21) on its outer side surface.

6. A control method for a regulating combined air valve for subway ventilation, applicable to any one of claims 1-5, characterized in that: Includes the following steps: S1, first adjust the length of the adjustable guide tube according to the two parallel air ducts, and then use the bolt locking mechanism (6) to lock and fix the length of the adjustable guide tube. S2, then the first assembly pipe (1) and the second assembly pipe (2) are respectively fitted and fixed to the splicing end of the corresponding air duct. Then the detachable closed cover plate (17) on the assembly surface is removed to expose the side assembly port with the internal shrink frame (18). Then the side connecting pipe (4) is inserted into the side loading and unloading port. The assembly bolt in the flip-type external assembly frame (19) is screwed into the side assembly screw hole (21) to complete the assembly and fixation. S3, after installation, the flip guide plate (9) closes the side loading and unloading port in the initial state. Then, the pressure sensor controller (3) monitors the air volume inside the first assembly pipe (1) and the second assembly pipe (2) respectively. When the air volume on one side is less than the air volume on the other side, the pressure sensor controller (3) on the side with larger air volume will control the electric control adjustment rod (7) to extend to the side with smaller air volume. Then, the external control rod (12) controls the rotation adjustment shaft (8), thereby synchronously driving the side linkage shaft (10) and the external transmission shaft (13) to rotate. At this time, the flip guide plate (9) on the side with smaller air volume and the flip guide plate (9) on the side with larger air volume flip in the same direction, guiding the air on the side with larger air volume to the interior of the structurally adjustable middle guide pipe, and then guiding it from the structurally adjustable middle guide pipe to the side with smaller air volume, thereby achieving the effect of consistent air volume on both sides of the air duct. S4, while the flipping guide plate (9) flips, the flipping linkage plate (11) on both sides will be controlled to flip in the same direction, so as to form a matching guide slope with the flipping guide plate (9), thereby reducing the resistance inside the guide tube in the adjustable structure; S5, the pressure sensor controller (3) detects the pressure on both sides of the flip guide plate (9) respectively, so as to accurately calculate the actual pressure inside the air ducts on both sides after adjustment.

Images