CN221349373U

CN221349373U - One-way air valve ventilation device arranged above subway end door

Info

Publication number: CN221349373U
Application number: CN202323150948.9U
Authority: CN
Inventors: 张清; 张涛; 苏向阳; 苏睿; 陈林根
Original assignee: Cccc Mechanical & Electrical Engineering Co ltd
Current assignee: Cccc Mechanical & Electrical Engineering Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-07-16
Anticipated expiration: 2033-11-22

Abstract

The utility model provides a one-way air valve ventilation device arranged above a subway end door, which comprises a hollow valve body frame arranged at the upper part of a shielding door end door at the position of a train departure end at two sides of a platform, wherein a plurality of fixed supporting pieces which are longitudinally arranged are arranged in the valve body frame, a plurality of shaft holes are arranged on the outer side of the fixed supporting pieces and in the two side walls of the valve body frame, a plurality of supporting rotating shafts which are transversely arranged are arranged at the positions of the shaft holes, self-hanging movable blades which can open or close an air duct in the valve body frame are sleeved outside the supporting rotating shafts, and a plurality of electric adjusting air valves are arranged on the inner sides of the fixed supporting pieces. The utility model has low cost and can prevent the pollutants in the section tunnel from entering the platform.

Description

One-way air valve ventilation device arranged above subway end door

Technical Field

The utility model relates to the field of subway environmental control equipment, in particular to a one-way air valve ventilation device arranged above a subway end door.

Background

With the rapid development of economic construction, urban mass is rapidly enlarged, urban passenger transport demands are increasingly growing, and urban rail transit represented by subways is greatly developed. While the construction scale of rail transit continues to increase, the problem of high energy consumption is increasingly prominent. In the field of rail transit, the energy consumption of the environmental control system is only inferior to that of a train traction system, the energy consumption of the urban environmental control system with low air temperature is about 1/3 of the total energy consumption of operation, and the energy consumption of the urban with high air temperature is about 1/2 of the energy consumption of the environmental control system due to weather. Meanwhile, the subway station environmental control system operates all year round and the daily operation time reaches 17 hours, and the annual operation time is about 6200 hours, so that the operation energy consumption intensity of the ventilation air conditioning system is obviously higher than that of a common public building. Therefore, the method has important significance and value for researching energy-saving measures of the subway environmental control system under the current large background of emission reduction.

The piston wind generated by subway operation has great energy-saving potential, and because the direction of the piston wind is bidirectional, sometimes enters the station from the tunnel and sometimes enters the tunnel from the station, the problem that the piston wind is reasonably utilized to save energy in excessive seasons cannot be well solved by arranging an electric air valve on a shielding door at present. In addition, in such a personnel-intensive area of a subway station, sufficient fresh air supply is required to be ensured to effectively reduce the disease transmission rate, and the existing air conditioning equipment of partial stations cannot meet the requirement of personnel on fresh air even in the running state of full fresh air, so that a measure capable of effectively increasing the fresh air quantity of the subway station is required. In addition, when a fire disaster occurs in the platform, the smoke exhausting system only approaches the platform, so that the smoke is difficult to timely exhaust, and an auxiliary smoke exhausting means is also needed to accelerate the exhaust of the smoke.

Disclosure of utility model

For this reason, there is a need to provide a one-way damper ventilation device installed above the subway end door, which solves the problem.

The utility model provides a one-way air valve ventilation device arranged above a subway end door, which comprises a hollow valve body frame arranged at the upper part of a shielding door end door at the position of a train departure end at two sides of a platform, wherein a plurality of fixed supporting pieces which are longitudinally arranged are arranged in the valve body frame, a plurality of shaft holes are arranged on the outer side of the fixed supporting pieces and in the two side walls of the valve body frame, a plurality of supporting rotating shafts which are transversely arranged are arranged at the positions of the shaft holes, self-hanging movable blades which can open or close an air duct in the valve body frame are sleeved outside the supporting rotating shafts, and a plurality of electric adjusting air valves are arranged on the inner sides of the fixed supporting pieces.

Further, the device is arranged at the upper part of a shielding door end door at the off-site end of the train at two sides of the subway platform.

Further, the inner side refers to the side of the train leaving end door in the direction of the platform, and the outer side refers to the side of the train leaving end door in the direction of the section tunnel.

Further, the self-hanging movable blade is positioned on the outer side of the fixed support, and the electric adjusting wind valve is positioned on the inner side of the fixed support.

Further, the free ends of the self-hanging movable blades form a flange, and the flange is sealed with the valve body frame in a matched mode.

Further, the self-hanging movable vane is closely attached to the fixed support in a state of only gravity.

Further, the allowed airflow flowing direction when the self-hanging movable blade is opened is the platform flowing direction to the interval tunnel.

Further, the size of the hollow valve body frame at the upper part of the shielding door end door is matched with the size of the subway station where the shielding door end door is positioned.

Further, the electric regulating air valve is kept normally open in transitional seasons and when a fire disaster occurs in the platform, and is kept normally closed in other times.

Compared with the prior art, the technical scheme has the following beneficial effects:

1. The utility model fully utilizes the negative pressure effect generated by the piston wind in the running process of the train in the tunnel, does not consume other energy sources, and has obvious energy-saving advantage.

2. When the method is used for reforming the built subway platform, the method only needs to reform two end doors, so that the reforming cost is low, and the method is convenient for falling to the ground.

3. The use of the one-way air valve can simplify the control process while effectively avoiding the section tunnel pollutants from entering the platform.

4. The utility model can assist smoke discharge through the coordination function with the tunnel accident fan when the station is in fire, thereby ensuring personnel safety.

Drawings

FIG. 1 is a diagram of the installation position of a one-way air valve device above a subway end door;

FIG. 2 is an internal structural view of a one-way damper ventilation device installed above a subway end door without a supporting rotary shaft and a self-hanging movable vane;

FIG. 3 is a front view of a one-way damper ventilation device mounted above a subway end door;

FIG. 4 is a cross-sectional view of a one-way damper ventilation device installed above a subway end door;

fig. 5 is a structural view of a damper installed above a door of a subway end.

Reference numerals illustrate:

1. a ventilation device;

2. A shield door end door;

3. A valve body frame;

4. A fixed support;

5. a shaft hole;

6. Supporting a rotating shaft;

7. a self-drooping movable blade;

8. an air valve;

9. a telescopic motor;

90. And a connecting rod.

Detailed Description

In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As well as the understanding in the "patent review guideline," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude the present number in the present application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.

Referring to fig. 1 to 5, the present utility model provides a one-way damper ventilation device 1 installed above a subway end door, which is installed in an upper space of a shield door end door 2 at the off-station end of trains at both sides of a platform. It can be seen from fig. 2 that the device is composed of a hollow valve body frame 3, a plurality of longitudinally arranged fixed supporting pieces 4 arranged in the valve body frame, a plurality of shaft holes 5 for supporting rotation shafts arranged on the outer side of the fixed supporting pieces and in the two side walls of the valve body frame 3, a plurality of transversely arranged supporting rotation shafts 6 arranged at the positions of the shaft holes, a self-hanging movable blade 7 capable of opening or closing an air channel in the valve body frame sleeved outside the supporting rotation shafts, a plurality of electric adjusting air valves 8 arranged on the inner side of the fixed supporting pieces, and the like.

The working process of the utility model is as follows:

When outdoor weather conditions are changed from air conditioning seasons to transitional seasons, station staff control the extension of the telescopic motor 9 through a button, and the telescopic motor 9 drives the electric adjusting air valve 8 to be opened through the connecting rod 90, so that the station staff is changed from a normally closed state to a normally open state. Wherein a link 90 is hinged to the vane of each damper, and when the link 90 is moved, the vane is rotated, thereby opening the damper.

When the train leaves the station, negative pressure is formed at the outer side of the end door of the end of the train leaving the station due to the suction effect of the piston wind, and huge pressure difference is formed at the inner side and the outer side. At this time, the self-hanging movable blades 7 rotate outwards by taking the supporting rotating shaft 6 as the center, and the lower parts of the self-hanging movable blades 7 are lifted up, so that the air flow flowing from the platform to the section tunnel is realized. Then the platform area forms negative pressure, and outdoor fresh air can be induced to enter the station hall from the entrance and the platform in sequence to balance the negative pressure. Therefore, the purposes of increasing the fresh air quantity and reducing the energy consumption of the environmental control system in the transitional season are achieved.

When the negative pressure outside the end door of the leaving station disappears or becomes positive pressure, the self-hanging movable blade 7 automatically sags under the action of self gravity or pressure difference, and the self-hanging movable blade 7 is clung to the upper end of the next self-hanging movable blade and cannot be opened, so that the passage of air flow can be blocked, and the purpose of unidirectional ventilation is achieved. The lower ends of the self-hanging movable blades 7 can be provided with elastic sheets, and the elastic sheets ensure the air tightness between the self-hanging movable blades 7.

When a fire disaster occurs at the platform, if the electric regulation air valve 8 is in a normally closed state at the moment, the telescopic motor 9 automatically rotates to drive the electric regulation air valve 8 to be opened through the connecting rod. The accident fan of interval tunnel outwards convulsions makes the end door outside form negative pressure, and inside and outside form huge pressure differential and make from hanging down movable vane 7 and rotate outwards with supporting axis of rotation 6 as the center, lift up from hanging down movable vane 7 lower part to realize that the flue gas flows from the platform to interval tunnel, accelerate the discharge of platform flue gas. If fire disaster occurs in the section tunnel, the self-sagging movable blades 7 automatically sag under the action of self gravity or pressure difference, and the self-sagging movable blades 7 are clung to the fixed supporting piece 4 and cannot be opened, so that the intrusion of smoke into the platform can be blocked.

The inner side refers to the side of the train leaving end door in the direction of the platform, and the outer side refers to the side of the train leaving end door in the direction of the section tunnel. In some embodiments, the utility model may be installed elsewhere in the platform, the outside may be a road or the like.

The self-hanging movable blade 7 is positioned on the inner side of the fixed support 4, and the electric adjusting air valve 8 is positioned on the outer side of the fixed support 4.

The free ends of the self-hanging movable blades 7 form a blocking edge, and the blocking edge is matched and sealed with the valve body frame 3. As shown in fig. 4, the upper end of the flap 7 is abutted against the upper portion of the valve body frame 3, and the lower end of the flap 7 is abutted against the lower portion of the valve body frame 3. In order to avoid the inward rotation of the lowest self-hanging movable vane 7, a square blocking block can be arranged at the lower part of the valve body frame 3 to realize blocking.

The self-hanging movable vane 7 is closely attached to the fixed support 4 in a state of only gravity. This eliminates the need for the introduction of elastic members. In some embodiments, the tight contact may be maintained by an elastic member such as a spring.

The allowed airflow flowing direction when the self-hanging movable blade 7 is opened is the platform flowing direction to the interval tunnel, namely the wind direction is the flowing direction to the interval tunnel.

The size of the valve body frame 3 in the upper part of the shielding door end door can be flexibly adjusted according to different subway stations. Namely, the length and the width can be adjusted to adapt to different subway stations.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims

1. One-way air valve ventilation unit of installing in subway end door top, its characterized in that: including shield door end door (2) upper portion that leaves station end department at platform both sides train is equipped with hollow valve body frame (3), be provided with a plurality of longitudinal arrangement's fixed support piece (4) in valve body frame (3), set up a plurality of shaft hole (5) in the outside of fixed support piece (4) and the both sides wall of valve body frame (3) the shaft hole (5) position sets up a plurality of transverse arrangement's support axis of rotation (6), support axis of rotation (6) overcoat has the self-sagging movable vane (7) that can open or close the wind channel in the valve body frame, fixed support piece (4) inboard sets up a plurality of electric control blast gate (8).

2. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the device is arranged at the upper part of a shielding door end door (2) at the off-site end of the trains at the two sides of the subway platform.

3. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the inner side refers to the direction side of the train leaving end door to the platform, and the outer side refers to the direction side of the train leaving end door to the section tunnel.

4. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the self-hanging movable blade (7) is located on the outer side of the fixed supporting piece (4), and the electric adjusting air valve (8) is located on the inner side of the fixed supporting piece (4).

5. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the free end of the self-hanging movable blade (7) forms a blocking edge, and the blocking edge is sealed with the valve body frame (3) in a matched mode.

6. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the self-hanging movable blade (7) clings to the fixed support (4) under the condition of only gravity.

7. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the allowed airflow flowing direction when the self-hanging movable blade (7) is opened is the platform flowing direction to the interval tunnel.

8. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the size of the valve body frame (3) in the upper part of the shielding door end door is matched with the size of the subway station where the shielding door end door is positioned.

9. A one-way damper ventilation device for installation above a subway end door as claimed in claim 1, wherein: the electric regulating air valve (8) is kept normally open in transitional seasons and when a fire disaster occurs in the platform, and is kept normally closed in other times.