A device for alternating operation of valve assemblies and fan / sliding door assemblies.

CN122062109BActive Publication Date: 2026-08-14CHINA ENERGY CONSTRUCTION (SHANGHAI) COMPLETE ENGINEERING CO LTD
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Patent Information

Application Number
CN202610545632.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-23
Publication Date
2026-08-14
Estimated Expiration
2046-04-23

AI Technical Summary

Technical Problem

[0002]现有技术中,阀门和风机是固定装配,无法进行移动,进而存在以下的问题:

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the technical field of staggered operation components, specifically disclosing a device for staggered operation of valve components and fan sliding door components. It includes an assembly frame forming at least two working areas, a fan sliding door component equipped with several fans, and a valve component with a sealing structure forming openings in the working areas. The valve component and fan sliding door component operate staggered under the drive of a driving mechanism. This invention's staggered operation valve component and fan sliding door component design is suitable for processes requiring switching between multiple scenarios, greatly improving convenience.
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Description

Technical Field

[0001] This invention relates to the field of adsorption device technology, and more particularly to a device in which valve assemblies and fan sliding door assemblies operate alternately. Background Technology

[0002] In existing technologies, valves and fans are fixed assemblies that cannot be moved, which leads to the following problems: First, the number of valves will increase, and the number of sealing surfaces will increase accordingly. This requires ensuring that multiple sealing surfaces are sealed to ensure effectiveness, which in turn reduces the reliability of the seal.

[0003] Secondly, the fixed assembly method requires a larger number of fans, and the fans are in a standby state during the desorption time, which reduces the efficiency of the fans. Summary of the Invention

[0004] The purpose of this invention is to provide a device for the alternating operation of valve assemblies and fan sliding door assemblies, so that the valve assemblies and fan sliding door assemblies can form a movable structure, which facilitates subsequent exchange operations.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0006] The device for the alternating operation of valve assembly and fan sliding door assembly includes an assembly frame forming at least two working areas, a fan sliding door assembly equipped with several fans, and a valve assembly forming a sealing structure for openings in the working areas. The valve assembly and fan sliding door assembly operate alternately under the drive of a drive mechanism.

[0007] Furthermore, the working area forms front and rear openings, and the valve assembly includes valve assembly one and valve assembly two located at the front and rear openings. Valve assembly one and the fan sliding door assembly operate alternately under the drive mechanism, so that the working areas corresponding to valve assembly one and the fan sliding door assembly respectively form desorption area and adsorption area. Valve assembly two and the fan sliding door assembly are assembled correspondingly at the front and rear openings of the same working area.

[0008] Furthermore, the valve assembly and the fan sliding door assembly move synchronously in opposite directions under the action of the drive mechanism.

[0009] Furthermore, the bottom of the assembly frame forms a double track, with the valve assembly and the fan sliding door assembly respectively mounted on the inner track and the outer track, and the drive mechanism located between the inner track and the outer track.

[0010] Furthermore, the driving mechanism is a gear mechanism, and the outer side of the valve assembly and the inner side of the fan sliding door assembly are respectively provided with racks that mesh with the gear mechanism.

[0011] Furthermore, the valve assembly and the fan sliding door assembly are respectively provided with a first sealing assembly and a second sealing assembly, so that the adsorption area forms a sealed cavity.

[0012] Furthermore, the valve assembly includes a hinged valve frame and a valve structure, and also includes a preload assembly. During reciprocating motion, the preload assembly drives the valve structure to move closer to or away from the assembly frame along a set trajectory.

[0013] Furthermore, the first sealing assembly is a seal embedded in the valve structure and facing the assembly frame.

[0014] Furthermore, the preload assembly forms a preload in the sealing cavity. The preload assembly includes a pressure bar located above the assembly frame and a pressure roller that passes through the assembly frame and is linked with the pressure bar.

[0015] Furthermore, the second sealing assembly includes sealing strips located on the upper and lower sides of the fan sliding door assembly and hinged doors located on the left and right sides of the fan sliding door assembly.

[0016] The beneficial effects of this invention are as follows: In this invention, by setting up a fan sliding door assembly equipped with multiple fans, the fan sliding door can drive multiple fans to move, thereby reducing redundant equipment and improving equipment utilization efficiency. Meanwhile, the valve assembly is set to be relatively large, realizing the synchronous movement of the large valve and multiple fans, reducing the waiting period. For example, the length and width of the valve assembly and the fan sliding door assembly can be set to be equal.

[0017] In this invention, the staggered valve assembly and fan sliding door assembly design reduces the number of valves from 12 to 2, and the number of fans and fan mounting walls are reduced by 50% compared to the independently fixed valve and fan configuration. This significantly reduces the equipment's weight and the number of moving parts, thereby greatly improving the stability of the equipment's operation.

[0018] In this invention, only two movable valve assemblies need to be added to the working area, respectively set on both sides. When the two valve assemblies move to the opposite position, desorption is completed, while the fan sliding door assembly forms an adsorption state when used alone. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the device for the alternating operation of valve assembly and fan sliding door assembly provided by the present invention before movement; Figure 2 A schematic diagram of the moving structure of the device for the alternating operation of valve assembly and fan sliding door assembly provided by the present invention; Figure 3 A schematic diagram of the structure of the device for the alternating operation of valve assembly and fan sliding door assembly provided by the present invention after movement; Figure 4 This is a schematic diagram of the valve assembly provided by the present invention; Figure 5 Provided by the present invention Figure 4 A magnified view of a portion of the image; Figure 6 This is a schematic diagram of the preload assembly provided by the present invention; Figure 7 A schematic diagram of the structure of the first sealing assembly provided by the present invention; Figure 8 This is a schematic diagram of the structure of the second sealing assembly provided by the present invention; Figure 9 A schematic diagram of the gate sealing state provided by the present invention; Figure 10 A schematic diagram of the drive mechanism provided by the present invention; In the picture: 100. Assembly frame; 110. Working area; 200. Fan sliding door assembly; 210. Fan; 220. Second sealing assembly; 221. Upper sealing strip; 222. Lower sealing strip; 230. Flip door; 240. Gate; 300. Valve assembly; 310. Valve assembly one; 320. Valve assembly two; 330. First sealing assembly; 340. Valve frame; 350. Valve structure; 400. Drive mechanism; 500. Preload assembly; 510. Pressure rod; 520. First connecting rod; 530. Rotating shaft; 540. Second connecting rod; 550. Pressure roller; 560. Bushing. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0021] See attached document Figure 1-10 As shown, the device for the alternating operation of the valve assembly and the fan sliding door assembly in this embodiment specifically includes an assembly frame 100 forming at least two working areas 110, a fan sliding door assembly 200 equipped with several fans 210, and a valve assembly 300 forming a sealing structure for openings in the working areas 110. The valve assembly 300 and the fan sliding door assembly 200 operate alternately under the drive of the drive mechanism 400. This arrangement allows the state of the equipment to be adjusted as the components move. If a component cannot move, it is necessary to wait for one state within the component to be completed before proceeding to another state. This waiting period increases the waiting period of the equipment and reduces the efficiency of equipment use.

[0022] Of course, the two components can also be assembled for industrial applications, such as making the two working areas 110 form a desorption area and an adsorption area respectively; at the same time, in this embodiment, in the desorption area, the valve assembly 300 and the assembly frame 100 form a sealed cavity with pre-tightening force through the pre-tightening force assembly 500.

[0023] In existing technology, both the fan and valves are fixed. Valve assemblies are installed on both sides of each area, and a fan wall needs to be added outside the exhaust side. Once the valves are open, the fan operates. Therefore, the working area requires two valves and one fan. All valves must be fully opened before the fan can be started to perform its corresponding function.

[0024] In this embodiment, the working state of the work area can be changed as the fan sliding door assembly 200 and the valve assembly 300 move. For example, the switching process from the valve assembly to the fan assembly can be completed directly, without the need for so many cumbersome steps of opening the valve and then opening the fan. This improves the utilization efficiency of the equipment, reduces redundant design, makes the equipment simpler, and reduces the weight of the equipment accordingly.

[0025] In this embodiment, multiple fans are assembled together, and the valve assembly 300 becomes a larger structure. This not only reduces the overall weight, but also makes subsequent maintenance simpler and more convenient due to its mobile design.

[0026] In this embodiment, the working area 110 of the assembly frame 100 has openings at the front and rear, forming a through structure similar to a front opening and a rear opening. An adsorption bed is placed inside. The working state is switched by the different positions of the fan sliding door assembly and the valve assembly. For example, the valve assembly 300 includes valve assembly one 310 and valve assembly two 320 located at the front and rear openings. The valve assembly one 310 and the fan sliding door assembly 200 operate alternately under the drive mechanism 400, so that the working areas corresponding to the valve assembly one 310 and the fan sliding door assembly 200 respectively form a desorption area and an adsorption area. The valve assembly two 320 is on the other side of the frame and is set corresponding to the valve assembly one 310. In this embodiment, this specific structural arrangement makes it clearer what the device is like in different states of each working area 110. For example, in a working area, if there are only fan sliding door assemblies 200 on both sides, it is connected to the outside. The fan sliding door assemblies 200 can be opened directly to perform adsorption. After adsorption is completed, an exchange is performed. At this time, the working area that originally only had fan sliding door assemblies 200 has valve assembly 1 310 and valve assembly 2 320 on both sides after the exchange, thus becoming a desorption state. On the other side, there are only fan sliding door assemblies 200, thus forming an adsorption area.

[0027] In this embodiment, the adsorption bed allows air entering from the fan 210 to enter the adsorption bed through adsorption. Carbon dioxide is then adsorbed onto the adsorption bed, providing a basis for subsequent desorption and collection. When the adsorption bed is saturated, an exchange mechanism allows valve assembly 320 and valve assembly 310 to enter the saturated working area, forming a sealed working area and completing the desorption process. In this embodiment, the fan assists and guides air intake, causing air to enter the housing from the side away from the fan sliding door assembly 200. Carbon dioxide is then adsorbed by the adsorbent inside the adsorption bed. Once the adsorbent reaches saturation, the position is exchanged for subsequent desorption, and this cycle repeats continuously.

[0028] In the existing technology, since the valve and the fan sliding door constitute a single small fixed adsorption device, it is impossible to link multiple working areas. Each adsorption device performs adsorption and desorption independently, which results in relatively low efficiency.

[0029] In this embodiment, a fan sliding door assembly 200 and a valve assembly 310 can be set on the same side, and a valve assembly 320 can be set on the other side. The states of the two working areas can be switched by moving the valve assembly 310 and the fan sliding door assembly 200. Specifically, the valve assembly 310 and the fan sliding door assembly 200 on the same side can be driven by a drive mechanism 400 to move synchronously in opposite directions. This not only saves the drive mechanism, but also allows the two to move in opposite directions and run alternately, directly completing the adjustment of the working state. This achieves the effect that fixed components cannot complete the exchange of working states.

[0030] A double track can be formed at the bottom of the assembly frame 100. The valve assembly 310 and the fan sliding door assembly 200 are respectively mounted on the inner and outer tracks of the double track, and the drive mechanism 400 is located between the inner and outer tracks. In this embodiment, the double track design is cleverly utilized so that the movement on both sides does not interfere with each other, but can be controlled synchronously, which greatly facilitates subsequent state switching. In this embodiment, since the valve assembly 300 is generally fitted with the assembly frame, the valve assembly 300 is closer to the assembly frame 100 here, providing a basis for subsequent vacuuming, etc.

[0031] In this embodiment, a pipe can be set at the bottom of the assembly frame 100, and the pipe is connected to the working area. The pipe is connected to a vacuum pump. Through the suction operation of the vacuum pump, the air in the corresponding working area is sucked away to form a vacuum environment.

[0032] Specifically, a gear mechanism is selected as the drive mechanism 400. Racks meshing with the gear mechanism are respectively provided on the outer side of the valve assembly 310 and the inner side of the fan sliding door assembly 200. The rotation of the gear mechanism drives the racks to move in the opposite direction, achieving bidirectional dual-structure control.

[0033] To ensure the sealing of the adsorption state, the valve assembly 300 and the fan sliding door assembly 200 are respectively provided with a first sealing component 330 and a second sealing component 220, so that the adsorption area forms a sealed cavity.

[0034] In this embodiment, valve assembly 310 and valve assembly 320 have the same structure, both including a hinged valve frame 340 and a valve structure 350. When the pre-tightening force component 500 moves, it drives the valve structure 350 to approach the assembly frame 100, and the pre-tightening force component 500 reciprocates, for example, during rotation, causing the valve structure 350 to approach or push back, and also reciprocates.

[0035] Specifically, the preload assembly in this embodiment includes four pressure rods 510 located on the outer periphery of the assembly frame. The four pressure rods 510 are located on the upper and lower sides of the assembly frame 100, with one on each side at the front and rear ends. The pressure rods 510 are then connected to a first connecting rod 520 horizontally arranged on the upper and lower surfaces of the assembly frame 100, and then to a rotating shaft 530 passing through the housing of the assembly frame 100. The lower end of the rotating shaft 530 is connected to a second connecting rod 540, and the second connecting rod 540 is connected to a pressure roller 550. Thus, the first connecting rod 520, the rotating shaft 530, and the second connecting rod 550 are connected. 40 enables the pressure rod 510 and pressure roller 550 to be linked. When the pressure rod 510 is driven to move left and right along the assembly frame by the electric cylinder or other drive unit, the pressure roller 550 on the inner shell of the assembly frame will drive the valve structure 350 to move closer to the fitting point between the assembly frame 100 and the valve assembly. Then, the first sealing component 330, which forms a seal, is embedded in the valve structure 350, so that it forms a pre-tightening force with the assembly frame 100. Then, when a vacuum environment is required for subsequent adsorption, the air can be easily extracted through pipes to form a vacuum due to the generation of the pre-tightening force.

[0036] In this embodiment, adjacent working areas are sealed on both sides by a partition, and then, in conjunction with the first sealing component 330, the working areas with valve component 1 310 and valve component 2 320 on both sides are sealed as a whole, thereby achieving desorption.

[0037] In this embodiment, four pressure rods 510 are set in the front, back, top, and bottom. When different valve components need to be adjusted, the pressure rods at different positions are activated. For example, under normal circumstances, the valve component 2 320 opposite the fan sliding door component 200 needs to generate pre-tightening force. At this time, the valve component 1 310 is in the disengaged state and does not need to be adjusted.

[0038] In this embodiment, several pressure rollers 550 are set, and then the same pressure rod 510 links many pressure rollers 550. At this time, it cannot be guaranteed that all pressure rollers 550 can synchronously and accurately fit and press the valve. Therefore, the pressure rollers 550 at this time are eccentric pressure rollers. The pressure rollers adjust the eccentricity through the eccentric bushing to compensate for the error and ensure that all pressure rollers can synchronously fit the valve and press the valve.

[0039] In practical use, for example, along the length of the assembly frame 100, several pressure rollers 550 are set. However, due to manufacturing errors, some pressure rollers cannot directly press their outer wheels onto the valve assembly 300, resulting in a certain gap between them. Consequently, some pressure rollers exert pressure on the valve assembly while others do not. To avoid this gap, an eccentric bushing 560 is set. The eccentric bushing 560 can be mounted on the same assembly as the pressure rollers. Then, the second connecting rod 540 is linked with this assembly. As the second connecting rod 540 rotates, the eccentric bushing 560 also rotates, thereby reducing the gap between the pressure rollers mounted on the same circle and the valve assembly, thus achieving an auxiliary function and ensuring that all pressure rollers exert pressure on the valve assembly as much as possible.

[0040] Referring to the accompanying drawings, in this embodiment, the fan sliding door assembly 200 is provided with sealing strips at the top and bottom, specifically an upper sealing strip 221 and a lower sealing strip 222. The upper sealing strip 221 is laid directly, and the lower sealing strip 222 has a V-shaped cross-section. Flip doors 230 are hinged to both sides of the fan sliding door assembly 200. Driven, the flip doors 230 can switch between parallel and perpendicular states with the fan sliding door assembly 200. When the fan sliding door assembly 200 moves, the flip doors 230 need to be flipped to fill the space between the fan sliding door assembly 200 and the assembly frame 100. A gate 240 is then provided below the flip doors 230. Because a rack for movement is provided below, a clearance portion for the rack is formed at the gate 240. At this time, the gate 240 moves up and down along the flip doors 230, ensuring a seal below the flip doors 230.

[0041] In this embodiment, when setting the specific orientation, the flap door 230 is positioned in the Z-axis direction, while the pressure rod 510 is positioned in the X-axis direction. The upper sealing strip 221 and the lower sealing strip 222 are positioned along the X-axis direction. The first sealing component 330 can be a cuboid structure, and the corresponding valve structure 350 is also a cuboid structure. A groove is formed by a recessed portion on the inner surface of the cuboid structure, allowing the first sealing component 330 to be embedded in the groove structure, thus sealing its contact surface with the assembly frame 100. The valve component 300 focuses more on circumferential sealing. In actual use, the upper and lower seals are used for the gaps on both sides of the fan to ensure sealing on both sides during the adsorption process. The valve only needs to be sealed around its perimeter.

[0042] In this embodiment, the cross-section of the lower sealing strip 222 is a V-shaped structure. Under normal conditions, it is in the open state of the V-shape. When the gate 240 moves downward, it acts on the lower sealing strip 222, thereby causing the V-shaped structure to be pressed down to form a better seal. Once the gate 240 moves upward, the flattened V-shaped structure will automatically reset and become a V-shaped structure, thus having an automatic reset effect.

[0043] The second sealing component 220 in the fan sliding door assembly 200 prevents air entering the working area from the opening from flowing out directly due to the presence of the second sealing component 220, thus ensuring that most of the air remains within the working area, providing a basis for adsorption.

[0044] The working principle of this embodiment is described below: The gear and rack assembly enables the drive mechanism 400 to rotate, causing the valve assembly 300 and the fan sliding door assembly 200 to move alternately. After reaching the target position, the pressure rod 510 is subjected to force and moves parallel to fit against the surface of the assembly frame 100. Then, due to the presence of the pressure roller 550, a certain pre-tightening force is generated between the first sealing assembly 330 and the fitting surface of the assembly frame 100, thus completing the preparation before vacuuming in the desorption process. At the same time, the electric cylinder of the fan sliding door assembly 200 drives the flip door 230 to open from the closed state, and the electric cylinder on the flip door 230 drives the gate 240 to close, thus completing the preparation of sealing around the fan sliding door before the adsorption process.

[0045] After the valve assembly 300 and the fan sliding door assembly 200 have completed their work, when it is necessary to switch working states, the moved pressure rod 510 begins to retract, the preload is released, and then the valve structure 350 slowly separates from the contact surface by its own weight. At the same time, the flip door 230 and the gate 240 begin to retract. After the mechanism has reached its position, the gear and rack mechanism drives them to run alternately to exchange their positions, that is, to exchange working modes. This cycle repeats.

[0046] In this embodiment, during use, the longitudinal reciprocating motion of the valve along the length of the track is realized through the setting of the gear and rack mechanism; and four hinges are set around the valve structure 350, which in turn form the four corners of the valve frame 340, which is equivalent to a four-bar linkage structure. At this time, the valve structure 350 is formed to perform a lateral reciprocating translational motion in the direction perpendicular to the length of the track, and at the same time, it also provides a pre-tightening force for subsequent adsorption.

[0047] In this embodiment, the two working areas 110 have the same spatial volume, length, width and height, thus enabling them to meet the compatibility requirements of valve components and fan sliding door components.

[0048] In this embodiment, the staggered operation enables the movement of the large structure. Then, the four corners of the valve frame 340 are hinged to the valve structure 350. When the pressure rod 510 is pushed by force to move the valve structure 350 back and forth to approach or move away from the assembly frame 100, the valve structure 350 has a degree of freedom to move horizontally due to the hinge. With the action of the pressure rod, a good fit is achieved. Then, by applying a pre-tightening force, the valve structure 350 tends to lock with the assembly frame. After the pre-tightening force or the pressure rod moves away from the valve structure 350, the external pre-tightening force disappears. Due to the action of gravity, it will move away from the assembly frame 100, thus forming a gap with the assembly frame 100. Then, when the drive mechanism 400 drives the movement, the valve assembly 300 will move alternately with the fan sliding door assembly 200 to complete the exchange.

[0049] In this embodiment, the staggered operation of the larger sealing valve assembly and the fan sliding door assembly can be used in industries such as petrochemicals, power, water conservancy, and energy, and features such as reliability, long service life, and ease of operation.

[0050] In this embodiment, two working areas of the same size are selected, and then the two move in parallel. When they are misaligned and exchanged, the gear control not only ensures that the movement is synchronized and the displacement is equal, but also makes it highly accurate and less prone to misalignment or gaps between the gear and the working area.

[0051] In this embodiment, a control system such as a PLC can be added to make relevant settings for the drive mechanism and pressure rod, making it more intelligent and facilitating continuous operation with the preceding and following steps in production, thereby achieving fully automatic control.

[0052] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for alternating operation of valve assemblies and fan sliding door assemblies, characterized in that, The assembly includes an assembly frame that forms at least two working areas, a fan sliding door assembly equipped with several fans, and a valve assembly that forms a sealing structure for openings in the working areas. The valve assembly and the fan sliding door assembly operate alternately under the drive of a drive mechanism. The working area forms front and rear openings. The valve assembly includes valve assembly one and valve assembly two located in the front and rear openings. Valve assembly one and the fan sliding door assembly operate alternately under the drive mechanism, so that the working areas corresponding to valve assembly one and the fan sliding door assembly respectively form a desorption area and an adsorption area. Valve assembly two is located on the other side of the assembly frame and is set in correspondence with valve assembly one. The valve assembly and the fan sliding door assembly move synchronously in opposite directions under the action of the drive mechanism.

2. The device for alternating operation of the valve assembly and the fan sliding door assembly according to claim 1, characterized in that, The bottom of the assembly frame forms a double track, and the valve assembly and the fan sliding door assembly are respectively set on the inner track and the outer track, and the drive mechanism is located between the inner track and the outer track.

3. The device for alternating operation of the valve assembly and the fan sliding door assembly according to claim 1, characterized in that, The driving mechanism is a gear mechanism, and the outer side of the valve assembly and the inner side of the fan sliding door assembly are respectively provided with racks that mesh with the gear mechanism.

4. The device for alternating operation of valve assembly and fan sliding door assembly according to claim 1, characterized in that, The valve assembly and the fan sliding door assembly are respectively provided with a first sealing assembly and a second sealing assembly, so that the adsorption area forms a sealed cavity.

5. The device for alternating operation of the valve assembly and the fan sliding door assembly according to claim 4, characterized in that, The valve assembly includes a hinged valve frame and a valve structure, and also includes a preload assembly. During reciprocating motion, the preload assembly drives the valve structure to move closer to or away from the assembly frame along a set trajectory.

6. The device for alternating operation of valve assembly and fan sliding door assembly according to claim 5, characterized in that, The first sealing component is a seal embedded in the valve structure and facing the assembly frame.

7. The device for alternating operation of valve assembly and fan sliding door assembly according to claim 5, characterized in that, The preload assembly forms a preload in the sealed cavity. The preload assembly includes a pressure bar located above the assembly frame and a pressure roller that passes through the assembly frame and is linked with the pressure bar.

8. The device for alternating operation of valve assembly and fan sliding door assembly according to claim 4, characterized in that, The second sealing assembly includes sealing strips located on the upper and lower sides of the fan sliding door assembly and hinged doors located on the left and right sides of the fan sliding door assembly.

Citation Information

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