Vacuum valve for use in a frame structure and a sorption device comprising the vacuum valve

Abstract

The utility model discloses a vacuum valve for frame structure and adsorption device containing this vacuum valve, the vacuum valve includes the square outer frame of forming assembly cavity, still includes the connecting rod of setting through the assembly cavity, the connecting rod has the sealing plate through at least two groups of linkage mechanism synchronous linkage, and the connecting rod rotation drives the sealing plate and assembly cavity to form the closing state or opening state, and when the closing state, the sealing plate and square outer frame form the vacuum plugging face of sealing, the connecting rod department still is equipped with the buffer mechanism, and the buffer mechanism buffering rotation traction in the connecting rod rotation, make square outer frame be in stationary state. The direction valve formed by the utility model is more easily embedded in the container or equipment frame, reduces the installation dead angle, maximizes the space utilization, and the vacuum surface formed is convenient for the use of various adsorption devices in industry and other special scene needs.

Description

Technical Field

[0001] This utility model relates to the field of vacuum valve technology used in frame structures, and particularly to vacuum valves used in frame structures and adsorption devices containing such vacuum valves. Background Technology

[0002] In existing industrial production, such as gas adsorption, most equipment is constructed using frame structures like shipping containers, resulting in large overall equipment. If a circular valve is used in such a system, the container structure needs to be modified or adjusted to accommodate the circular valve. Conversely, in square-structure applications, excessive accessories are required, reducing the valve's ventilation surface, resulting in a smaller ventilation area and lower air resistance, thus impacting industrial use. Utility Model Content

[0003] The purpose of this invention is to provide a vacuum valve for use in a frame structure and an adsorption device containing the vacuum valve, so that it has better spatial adaptability, more flexible installation, and is easier to form a larger ventilation surface.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] On the one hand, a vacuum valve used in a frame structure includes a square outer frame forming an assembly cavity, and a connecting rod that passes through the assembly cavity. The connecting rod is synchronously linked to a sealing plate through at least two sets of linkage mechanisms. When the connecting rod rotates, it drives the sealing plate to form a closed state or an open state with the assembly cavity. When the valve is closed, the sealing plate and the square outer frame form a sealed vacuum sealing surface. The connecting rod is also equipped with a buffer mechanism. When the connecting rod rotates, the buffer mechanism buffers the rotational traction force, so that the square outer frame remains stationary.

[0006] Furthermore, the linkage mechanism is an eccentric mechanism, and during the rotation of the connecting rod, the linkage mechanism forms a curved motion trajectory that deviates from the center of the connecting rod.

[0007] Furthermore, the linkage mechanism includes a cam disk passing through the connecting rod, the end of which is embedded in the sealing plate.

[0008] Furthermore, each linkage mechanism includes two identical cam disks, which are connected near the connecting rod by a first connecting rod. A follower located outside the cam disk and connected to the connecting rod is coaxially connected to the cam disk by the first connecting rod.

[0009] Furthermore, the two cam discs are connected away from the end of the sealing plate by a second connecting rod, and two extensions are formed at the bottom of the second connecting rod. The two extensions are coaxially connected to the buffer mechanism by a third connecting rod.

[0010] Furthermore, the buffer mechanism and the linkage mechanism correspond one-to-one, and the linkage mechanism is a symmetrical structure with the buffer mechanism as the axis of symmetry.

[0011] Furthermore, the buffer mechanism includes a buffer plate connected to the linkage mechanism, the buffer plate having a through hole passing through the connecting rod, and the buffer plate abutting against the side wall of the assembly cavity.

[0012] Furthermore, it also includes a compensation plate partially embedded in the assembly cavity, the compensation plate being bolted to the buffer plate.

[0013] Furthermore, the assembly cavity is divided into two, and a reinforcing plate is located between the two assembly cavities. The reinforcing plate is disposed on the same side as the linkage mechanism.

[0014] Furthermore, the bottom of the reinforcing plate is provided with an I-shaped mounting part, the projection of the reinforcing plate is located on the mounting part, and slots are formed between the two ends of the bottom of the reinforcing plate and the mounting part.

[0015] On the other hand, an adsorption device containing a vacuum valve as described in any one of the above, wherein the adsorption device is a container, and at least one side of the container forms a valve opening, and the vacuum valve is located at the valve opening.

[0016] Furthermore, the valve is detachably mounted on the container via a connecting rod, and a sealing structure with a set elastic variable is embedded in the square outer frame of the valve.

[0017] Furthermore, at least 40 adsorption plates are arranged in a matrix inside the container, with the adsorption plates set at an angle to the container, and the vacuum environment pressure in the adsorption state of the adsorption plates is 1000-4000 Pa.

[0018] The beneficial effects of this utility model are as follows: In this invention, a square valve is selected. The square valve has a regular shape, making it easier to embed into a container or equipment frame, reducing installation dead angles and maximizing space utilization.

[0019] In this utility model, since the entire structure is large, it needs to be driven by multiple linkages. At this time, the rotation of the connecting rod and the linkage will cause the square outer frame to be subjected to force, resulting in a tendency to move in the horizontal or vertical direction. However, the addition of a buffer mechanism will create a reverse tendency to move, so that the whole is in balance. Therefore, during the entire movement, the square outer frame will not have a tendency to move and will be in a stationary state. Here, the stationary state is relative to the sealing plate. Attached Figure Description

[0020] Figure 1A schematic diagram of the structure of the vacuum valve used in the frame structure provided by this utility model; Figure 2 A schematic diagram of the vacuum valve in the fully open state in a frame structure provided by this utility model; Figure 3 A schematic diagram of the vacuum valve in a frame structure in the half-open state provided by this utility model; Figure 4 A schematic diagram of the vacuum valve in the fully closed state in a frame structure provided by this utility model; Figure 5 Assembly drawing of the linkage mechanism and connecting rod provided by this utility model; Figure 6 A schematic diagram of the reinforcing plate provided by this utility model; Figure 7 A schematic diagram of the adsorption device provided by this utility model; In the picture: 100. Square outer frame; 110. Assembly cavity; 120. Connecting rod; 130. Sealing plate; 140. Reinforcing plate; 141. Assembly part; 142. Slot; 200. Linkage mechanism; 210. Cam plate; 220. First connecting rod; 230. Follower; 240. Second connecting rod; 250. Extension; 260. Third connecting rod; 300. Buffer mechanism; 310. Buffer plate; 320. Compensation plate; 400. Container; 410. Adsorption bed. Detailed Implementation

[0021] 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 transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0022] See attached document Figure 1-4As shown, the vacuum valve used in the frame structure in this embodiment includes a square outer frame 100 forming an assembly cavity 110. Specifically, the square outer frame can be a rectangular or square frame structure, and the assembly method of the frame is not limited. This results in a relatively large open space for the valve. Furthermore, it includes a connecting rod 120 that penetrates the assembly cavity 110. The connecting rod 120 is synchronously linked to a sealing plate 130 via at least two sets of linkage mechanisms 200. As the connecting rod 120 rotates, it causes the sealing plate 130 to form a closed or open state with the assembly cavity 110. In the closed state, the sealing plate 130 and the square outer frame 100 form a sealed vacuum sealing surface. This not only creates a complete seal but also provides resistance, making it suitable for low- to medium-pressure vacuum environments, such as those ranging from 1000 to 4000 Pa, for relevant industrial operations.

[0023] In use, the opening area formed by the sealing plate 130 is two-thirds to six-sevenths of the cross-sectional area of ​​the entire square outer frame 100. As a result, the force generated during the movement of the sealing plate 130 is relatively large. At this time, the rotation of the connecting rod 120 and the movement of the linkage mechanism 200 will cause the square outer frame 100 to have a tendency to move. Therefore, it is necessary to avoid this tendency to move. At this time, a buffer mechanism 300 can be set at the connecting rod 120. During the rotation of the connecting rod 120, the buffer mechanism 300 buffers the rotational traction force, thereby canceling the tendency of the square outer frame 100 to move, and thus keeping the square outer frame 100 in a stationary state. This stationary state is relative to the movement of the linkage mechanism 200 and the sealing plate 130, rather than being absolutely stationary.

[0024] In practical application, to ensure relative stillness, an eccentric mechanism is selected as the linkage mechanism 200. The eccentricity rotates away from the center of the connecting rod 120, meaning that as the connecting rod 120 rotates, the linkage mechanism 200 forms a curved motion trajectory that deviates from the center of the connecting rod 120. This curved motion trajectory can be partially arc-shaped.

[0025] In the specific structural selection, to facilitate assembly within the square outer frame 100 and reduce space occupation, the linkage mechanism 200 in this embodiment includes a cam disk 210 passing through the connecting rod 120, with the end of the cam disk 210 embedded in the sealing plate 130. This embedded fixing method provides a more secure connection compared to bolted connections.

[0026] See attached document Figure 5As shown, in this embodiment, the cam disk is square from the connecting rod 120 to the sealing plate 130 in terms of width, first widening and then narrowing. That is, the width at the connection and the embedding part is relatively narrow, but the width near the embedding part is the widest, thus ensuring the connection strength in the vicinity. In terms of curvature, the connecting rod 120 to the sealing plate 130 forms a curved trajectory that first faces upwards and then faces downwards in the embedding direction. This results in an asymmetrical structure with a certain deviation in the center of gravity, which lays the foundation for the curved motion that deviates from the center of the connecting rod 120.

[0027] To improve strength and linkage efficiency, each linkage mechanism 200 includes two identical cam disks 210. The two cam disks 210 are connected near the connecting rod 120 by a first connecting rod 220. A follower 230, located outside the cam disk 210 and connected to the connecting rod 120, is coaxially connected to the cam disk 210 via the first connecting rod 220. In this case, the cam disk 210 becomes the driving element, and both pass through the first connecting rod 220 to form the entire cam eccentric structure. The follower 230 also forms a protective structure on its outer side.

[0028] To coordinate with the buffer mechanism 300, the ends of the two cam disks 210 furthest from the sealing plate 130 are connected by a second connecting rod 240. Two extensions 250 are formed at the bottom of the second connecting rod 240, and these two extensions 250 are coaxially connected to the buffer mechanism 300 via a third connecting rod 260. At this point, the cam disks 210, the extensions 250, and the plate material at the buffer mechanism 300 form a three-bar linkage structure. The buffer mechanism 300 will be described later.

[0029] In this embodiment, due to the large volume and weight of the sealing plate 130, multiple linkage mechanisms 200 are required, such as two, three, four, or more. The buffer mechanism 300 corresponds one-to-one with each linkage mechanism 200, and the linkage mechanism 200 is a symmetrical structure with the buffer mechanism 300 as its axis of symmetry. The combined force or tendency of movement generated by the symmetrical structure is absorbed or canceled by the buffer mechanism 300, thus ensuring the relative stillness of the square frame 100.

[0030] Specifically, the buffer mechanism in this embodiment is described as follows: The buffer mechanism 300 in this embodiment includes a buffer plate 310 connected to the linkage mechanism 200. At this time, the buffer plate is coaxially connected to two extension members 250 through the third connecting rod 260. The buffer plate 310 has a through hole that passes through the connecting rod 120. The other end of the buffer plate 310 abuts against the side wall of the assembly cavity 110, so that the force is dispersed and canceled.

[0031] Furthermore, to compensate for the insufficient buffering force provided by the buffer plate 310, a compensation plate 320 is also included, which is partially embedded in the assembly cavity. The compensation plate 320 is bolted to the buffer plate 310. In actual use, the buffer plate 310 is used to buffer the movement tendency caused by rotation, and then the compensation plate 310 generates a force in the opposite direction to the movement tendency, thereby ensuring that the entire frame does not have a movement tendency and forms a relatively static state.

[0032] In practical use, two assembly cavities 110 are typically formed, and a reinforcing plate 140 is placed between the two assembly cavities 110. The reinforcing plate 140 is located on the same side as the linkage mechanism 200. Therefore, during valve opening or closing, the reinforcing plate 140 is used to strengthen the square outer frame.

[0033] See attached document Figure 6 As shown, the bottom of the reinforcing plate 140 is provided with an I-shaped mounting part 141. The projection of the reinforcing plate 140 is located on the mounting part 141, that is, the length of the reinforcing plate 140 is greater than that of the mounting part 141. In subsequent assembly with the frame, the reinforcing plate 140 covers the frame. To facilitate assembly, slots 142 are formed between the two ends of the bottom of the reinforcing plate 140 and the mounting part 141, so that containers and other components can be inserted into these slots.

[0034] In this embodiment, the reinforcing plate 140 is detachably installed in the square outer frame 100, which facilitates subsequent disassembly and maintenance.

[0035] In this embodiment, a drive mechanism such as a motor can be added to the outside of the square outer frame 100 to form a connecting rod 120, which facilitates its rotation.

[0036] See attached document Figure 7 As shown, this embodiment also discloses an adsorption device, such as an adsorption device for carbon dioxide using variable temperature vacuum adsorption technology for metal oxide adsorbents. In the prior art, a container 300 is selected to constitute the entire adsorption device, and then several layers of adsorption beds 410 are inserted in a matrix inside the container 400, for example, 42 layers of adsorption beds. Each adsorption plate is inserted at an angle, and at least one side of the container 300 forms a valve opening, with the vacuum valve located at the valve opening. The purpose of the inclined adsorption bed is to increase the contact area with air. In this embodiment, adsorption is specifically performed using a carbon box as the adsorption box.

[0037] During valve assembly, the valve is detachably mounted on the container 400 via a connecting rod 120, for example, through a pin connection. During subsequent disassembly and assembly, the valve and connecting rod are disassembled and assembled together. A sealing structure with a set elastic variable is embedded within the square outer frame 110 of the valve. This sealing structure ensures sealing and the use of a vacuum environment. In this embodiment, a soft sealing strip is used to construct the sealing structure. For example, a groove is cut in the frame, and the rigid sealing strip fits snugly into the groove, thus compensating for flatness issues during subsequent assembly. For instance, the sealing structure can use a compression amount of 76mm for fit.

[0038] The adsorption device in this embodiment works as follows: The adsorption chamber consists of 42 layers, each containing an adsorption bed. Adsorption particles are first filled into the adsorption beds. A fan is installed at the rear of the adsorption chamber to evacuate air from the chamber, ensuring that air fills the adsorption particles within the adsorption beds. After evacuating air for a certain period, the valves before and after the adsorption chamber are closed, creating a sealed environment. Once the valves are closed, a vacuum is drawn into the adsorption chamber, and the heating elements within the adsorption beds are heated to approximately 80°C. Under these conditions, carbon dioxide is desorbed and separated from the adsorption particles, thus achieving carbon dioxide capture.

[0039] In this embodiment, a square outer frame is selected, which has the following advantages compared with the circular valve in the prior art: 1. Better space adaptability and installation flexibility: The regular shape of the square valve makes it easier to embed into the container or equipment frame, reducing installation dead angles and maximizing space utilization; 2. Higher duct cross-section utilization, more reliable sealing, and greater energy efficiency. Under the same ventilation duct area conditions, the usable ventilation area of ​​a square valve plate is greater than that of a circular one, resulting in lower system air resistance. Connection to square ducts or equipment eliminates the need for a "round top, square bottom" transition, improving sealing stability while removing unnecessary redundant components. 3. Easier mass production: The square valve body is made of standardized sheet metal cutting and welding, which makes it easier to achieve mass production than the round cast valve body, and is especially suitable for medium and low pressure scenarios.

[0040] 4. Higher material utilization and lower manufacturing costs: The square structure results in a lower waste rate when cutting sheet metal, saving approximately 10%-15% of raw materials compared to the annular cutting of a round valve body.

[0041] 5. Maintenance is more convenient, as square valves provide more space for tool operation during maintenance and disassembly.

[0042] In this embodiment, the sealing structure can be made of ethylene propylene rubber strips, which have the characteristics of corrosion resistance, good waterproof sealing, and high durability. When designing the sealing structure, a streamlined cross section is selected and customized geometric groove texture is integrated to achieve both low flow resistance and sealing performance requirements.

[0043] Compared to conventional circular valves in existing technologies, the square valve in this embodiment can be used for switching in various containers and is suitable for various industrial production under medium and low pressure conditions, specifically medium and low pressure of 1000-4000pa.

[0044] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] 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 vacuum valve for use in a frame structure, comprising a square outer frame forming an assembly cavity, characterized in that, It also includes a connecting rod that runs through the assembly cavity. The connecting rod is synchronously linked to a sealing plate through at least two sets of linkage mechanisms. When the connecting rod rotates, it drives the sealing plate to form a closed state or an open state with the assembly cavity. When the sealing plate is closed, it forms a sealed vacuum sealing surface with the square outer frame. The connecting rod is also equipped with a buffer mechanism. When the connecting rod rotates, the buffer mechanism buffers the rotational traction force, so that the square outer frame remains stationary.

2. The vacuum valve for use in a frame structure according to claim 1, characterized in that, The linkage mechanism is an eccentric mechanism. During the rotation of the connecting rod, the linkage mechanism forms a curved motion trajectory that deviates from the center of the connecting rod.

3. The vacuum valve for use in a frame structure according to claim 2, characterized in that, The linkage mechanism includes a cam disk that passes through the connecting rod, with the end of the cam disk embedded in the sealing plate.

4. The vacuum valve for use in a frame structure according to claim 3, characterized in that, Each linkage mechanism includes two identical cam disks, which are connected near the connecting rod by a first connecting rod. The driven member, located outside the cam disk and connected to the connecting rod, is coaxially connected to the cam disk by the first connecting rod.

5. The vacuum valve for use in a frame structure according to claim 4, characterized in that, Two cam discs are connected away from the end of the sealing plate by a second connecting rod. Two extensions are formed at the bottom of the second connecting rod, and the two extensions are coaxially connected to the buffer mechanism by a third connecting rod.

6. The vacuum valve for use in a frame structure according to claim 1, characterized in that, The buffer mechanism and the linkage mechanism are in one-to-one correspondence, and the linkage mechanism is a symmetrical structure with the buffer mechanism as the axis of symmetry.

7. The vacuum valve for use in a frame structure according to claim 6, characterized in that, The buffer mechanism includes a buffer plate connected to the linkage mechanism. The buffer plate has a through hole that passes through the connecting rod, and the buffer plate abuts against the side wall of the assembly cavity.

8. The vacuum valve for use in a frame structure according to claim 7, characterized in that, It also includes a compensation plate partially embedded in the assembly cavity, the compensation plate being bolted to the buffer plate.

9. The vacuum valve for use in a frame structure according to claim 1, characterized in that, The assembly cavity consists of two cavities and also includes a reinforcing plate located between the two cavities. The reinforcing plate is disposed on the same side as the linkage mechanism.

10. The vacuum valve for a frame structure according to claim 9, characterized in that, The bottom of the reinforcing plate is provided with an I-shaped mounting part, the projection of the reinforcing plate is located on the mounting part, and the two ends of the bottom of the reinforcing plate form slots with the mounting part.

11. An adsorption device comprising a vacuum valve as described in any one of claims 1-10, characterized in that, The adsorption device is a container, and a valve opening is formed on at least one side of the container, with the vacuum valve located at the valve opening.

12. The adsorption device according to claim 11, characterized in that, The valve is detachably mounted on the container via a connecting rod, and a sealing structure with a set elastic variable is embedded in the square outer frame of the valve.

13. The adsorption device according to claim 11, characterized in that, At least 40 adsorption plates are arranged in a matrix inside the container, with the adsorption plates set at an angle to the container, and the vacuum environment pressure of the adsorption plates in the adsorption state is 1000-4000pa.

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