Structure for preventing RTO switching valve plate from rotating

Abstract

The structure comprises a valve plate, the valve plate is arranged at a valve port in an openable and closable mode, the bottom of the back face of the valve plate is connected with a connecting plate, one side of the connecting plate is connected with a graphite copper plate, the connecting plate and the graphite copper plate are clamped into an anti-rotation rod at the same time, the graphite copper plate is attached to the anti-rotation rod, and the graphite copper plate is connected with the anti-rotation rod. The connecting plate is not in contact with the anti-rotation rod, and when the driving air cylinder pushes the valve plate to be opened and closed, the graphite copper plate slides along the anti-rotation rod. According to the utility model, the problem that the valve plate assembly continuously rotates during operation is effectively solved.

Description

Technical Field

[0001] This application relates to the field of valves, and particularly to a structure for preventing the rotation of the RTO switching valve plate. Background Art

[0002] The function of the switching valve is to directly and accurately, that is, to simultaneously pass the waste gas to the hot regenerator and discharge the purified gas. Simply put, it is that one channel of the valve enters, and the adjacent channel exits. Therefore, when the action of the valve is slightly slow, the unpurified waste gas may directly enter the discharge outlet of the purified gas, resulting in a decrease in purification efficiency and non-compliance with environmental protection standards. Another possibility that affects the purification effect is the leakage of the valve. If the valve has poor sealing performance, it can also cause a small amount of unpurified waste gas to directly enter the discharge outlet of the purified gas. The switching valve is used very frequently. To ensure the stable operation of the equipment temperature, it is necessary to ensure that there are no faults during the switching. There are disadvantages: 1. During use, the frequent rotation of the valve plate assembly of the switching valve causes relatively large wear on the cylinder seal. It is found during use that the cylinder shaft seal is often damaged and needs to be shut down for maintenance. 2. When the valve plate is tested at the factory and the sealing performance is tested with the rear sealing base, it is adjusted to the best state. If the valve plate rotates frequently during use, there is a risk of leakage. Summary of the Utility Model

[0003] The purpose of the present utility model is to provide a structure for preventing the rotation of the RTO switching valve plate, effectively solving the problem that the valve plate assembly keeps rotating during operation.

[0004] To achieve the above purpose, the present utility model provides the following technical solutions.

[0005] The embodiment of the present application discloses a structure for preventing the rotation of the RTO switching valve plate, including a valve plate. The valve plate is disposed at the valve port in an openable and closable manner. A connecting plate is connected to the bottom of the back surface of the valve plate. One side of the connecting plate is connected to a graphite copper plate. The connecting plate and the graphite copper plate are simultaneously clamped into an anti-rotation rod. The graphite copper plate is attached to the anti-rotation rod, and the connecting plate does not contact the anti-rotation rod. It further includes a driving cylinder. When the driving cylinder pushes the valve plate to open and close, the graphite copper plate slides along the anti-rotation rod.

[0006] Preferably, in the above structure for preventing the rotation of the RTO switching valve plate, the output end of the driving cylinder is connected to a valve rod. The valve rod is sealed through the axis of the valve plate and supported by a bracket inside the valve port.

[0007] Preferably, in the above structure for preventing the rotation of the RTO switching valve plate, the driving cylinder drives the valve rod to axially extend and retract to realize the opening and closing of the valve plate.

[0008] Preferably, in the above structure for preventing the rotation of the RTO switching valve plate, the anti-rotation rod is installed outside the valve port.

[0009] Compared with the prior art, the advantages of this technical solution are as follows: when opening and closing, since the graphite copper plate is clamped into the anti-rotation rod, it ensures that the valve plate cannot rotate around the axis. When opening and closing, since the valve plate needs to move forward and backward, the graphite copper plate also plays a good lubricating role to prevent excessive friction. When the graphite copper plate wears out, only the graphite copper plate needs to be replaced on the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 Shown is a perspective view of the structure for preventing the RTO switching valve plate from rotating in the embodiment of the present utility model;

[0012] Figure 2 Shown is a partial view of the structure for preventing the RTO switching valve plate from rotating in the embodiment of the present utility model;

[0013] Figure 3 Shown as Figure 2 the enlarged view at A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following will describe in detail the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0015] Combined with Figures 1-3As shown in the figure, the structure 100 for preventing the rotation of the RTO switching valve plate includes a valve plate 101. The valve plate 101 is disposed to be openable and closable at a valve port 102. A connecting plate 103 is connected to the bottom of the back surface of the valve plate 101. A graphite copper plate 104 is connected to one side of the connecting plate 103. The connecting plate 103 and the graphite copper plate 104 are simultaneously clamped into an anti-rotation rod 105. The graphite copper plate 104 is attached to the anti-rotation rod 105, and the connecting plate 103 is not in contact with the anti-rotation rod 105. It further includes a driving cylinder 106. When the driving cylinder 106 pushes the valve plate 101 to open and close, the graphite copper plate 104 slides along the anti-rotation rod 105. The output end of the driving cylinder 106 is connected to a valve rod 107. The valve rod 107 seals through the axis of the valve plate 101 and is supported by a bracket 108 inside the valve port 102. The driving cylinder 106 drives the valve rod 107 to axially expand and contract to realize the opening and closing of the valve plate 101. The anti-rotation rod 105 is installed outside the valve port 102.

[0016] In this embodiment, when the valve is opened and closed, since the graphite copper plate is clamped into the anti-rotation rod, it is ensured that the valve plate cannot rotate around the axis. And when the valve is opened and closed, since the valve plate needs to move forward and backward, the graphite copper plate also plays a good lubricating role to prevent excessive friction. When the graphite copper plate is worn, only the graphite copper plate needs to be replaced on the connecting plate.

[0017] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0018] The above are only specific embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A structure for preventing the rotation of the RTO switching valve plate, characterized in that, It includes a valve plate which is disposed to be openable and closable at a valve port. A connecting plate is connected to the bottom of the back surface of the valve plate. A graphite copper plate is connected to one side of the connecting plate. The connecting plate and the graphite copper plate are simultaneously clamped into an anti-rotation rod. The graphite copper plate is attached to the anti-rotation rod, and the connecting plate does not contact the anti-rotation rod. It further includes a driving cylinder. When the driving cylinder pushes the valve plate to open and close, the graphite copper plate slides along the anti-rotation rod.

2. The structure for preventing the rotation of the RTO switching valve plate according to claim 1, characterized in that, The output end of the driving cylinder is connected to a valve rod. The valve rod is sealed through the axis of the valve plate and supported by a bracket inside the valve port.

3. The structure for preventing the rotation of the RTO switching valve plate according to claim 2, characterized in that, The driving cylinder drives the valve rod to axially expand and contract to realize the opening and closing of the valve plate.

4. The structure for preventing the rotation of the RTO switching valve plate according to claim 1, wherein, The anti-rotation rod is installed outside the valve port.

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