Plugging member for container

Abstract

The container comprises a container body used for storing materials, the blocking component comprises a fastening cover, a fastening frame and a retaining hook, the fastening frame is pressed on the fastening cover, and the retaining hook is correspondingly connected to the fastening frame extending in the radial direction and droops from the outer periphery of the fastening frame. A container body is releasably hooked. The sealing effect is guaranteed by pressing the top end of the container through the plugging component. Meanwhile, leakage of residual gas is effectively prevented, and pollution caused by leakage is completely eradicated.

Description

Technical Field

[0001] The present application relates to the field of semiconductors and to a sealing component for a container. Background Art

[0002] The packaging and transportation of hazardous materials require the use of special storage containers (toners), with common sizes including 450 liters. For example, dichlorosilane (SiH2Cl2, Dichlorosilane, abbreviated as DCS) is a silicon-based material commonly used in the semiconductor industry. Its main use is to mix with ammonia in chemical vapor deposition chambers to grow silicon nitride thin films. Dichlorosilane is a chemically active, low-pressure liquefied gas with a boiling point of 8.4°C. It can rapidly hydrolyze and spontaneously combust in air, so it must be kept out of the air during operations. Any experiment involving the use of dichlorosilane must take precautions. Therefore, considerable attention must be paid to the use, handling, and filling of storage containers.

[0003] Commonly used storage containers are disclosed in the Chinese invention patent No. CN112758541A. Figure 1 As shown, the container body 10 is a large-scale container for dichlorosilane (SiH2Cl2). The diameter A of the ring portion 11 is between 750 mm and 860 mm, and the maximum distance between the arc bottom 12 and the arc top 13 is between 900 mm and 1000 mm, allowing the container body 10 to hold between 360 liters and 450 liters of dichlorosilane (SiH2Cl2) liquid. The container body 10 is cylindrical and has a ring portion 11. The ring portion 11 extends to one end to form a circular bottom 12, and the ring portion 11 extends to the other end to form a circular top 13. The arc top 13 has lifting lugs 14 at each of the four diagonal corners. The bottom plate 20 is supported by four support rods 22 arranged in a cross pattern. The bottom plate 20 is connected to the annular portion 11 of the container body 10 via the four support rods 22, creating an open heating space 23 between the arc bottom 12 and the seat plate 20. A valve assembly 30 is secured to the arc top 13 by a disc 31. The disc 31 holds a first valve tube 32, a second valve tube 33, a backup valve tube 34, and a pneumatic valve 35. The first valve tube 32 communicates with the container body 10 for the injection of dichlorosilane liquid, while the second valve tube 33 communicates with the container body 10 for the output of dichlorosilane gas. The four lifting lugs 14 and the two insertion holes 21 form a four-corner symmetrical structure, allowing the container body 10 to remain stably upright for transport.

[0004] Even when empty cylinders are recycled and refilled, a small amount of residual gas can remain, posing a risk of dichlorosilane gas leakage. After filling, dichlorosilane is first tested for leaks. The residual gas is then extracted to create a vacuum inside the cylinder, ensuring no residual dichlorosilane remains. If the valve assembly components fail to meet airtightness requirements, sealing the leak remains a pressing issue. Utility Model Content

[0005] The weak point of these containers is often the connection between the container body and the valve assembly at the top seal. The valve assembly is the component that opens and closes the container. The sealing component in this application can ensure the top seal of the container is sealed regardless of dimensional changes such as the overall height of the container.

[0006] Due to the properties of dichlorosilane, a leak can cause serious poisoning, burns, explosions, and environmental pollution. Currently, there are no emergency sealing components for this type of container in the industry. The general objective of the present disclosure is to provide a compression-type sealing component that fits snugly against the top of the container to prevent dichlorosilane leaks from impacting the surrounding environment, equipment, and personnel.

[0007] A first aspect of the present application provides a sealing component for a container, which includes a container body for storing materials. The sealing component includes a fastening cover, a fastening frame and a retaining hook. The fastening frame is pressed onto the fastening cover, and the retaining hook is correspondingly connected to the fastening frame extending in a radial direction, hanging from the outer periphery of the fastening frame, and releasably hooking the container body.

[0008] Furthermore, the retaining hooks are symmetrically distributed with the axial direction of the container body as the symmetry axis.

[0009] Furthermore, the holding hooks are arranged in a circular shape or in a diagonal shape.

[0010] Furthermore, the fastening bracket and the retaining hook are fixed by means of a bolt connection.

[0011] Furthermore, the fastening frame is H-shaped or #-shaped.

[0012] Furthermore, the retaining hook is bent in a direction away from the container body.

[0013] Furthermore, a protective baffle is provided on the periphery of the container body, and openings are evenly distributed on the protective baffle to keep the hooks hooked and locked at the openings.

[0014] Furthermore, the degree of hooking between the retaining hook and the opening is adjusted by a nut and a bolt provided at the end of the retaining hook.

[0015] Compared with the existing technology, the technical solution provided by this application has the following advantages:

[0016] The sealing component proposed by the utility model ensures the sealing effect by pressing the top end of the container, and effectively prevents the leakage of residual gas and eliminates the pollution caused by leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The advantages and spirit of the present application can be further understood through the following detailed description and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of a storage container disclosed in patent publication number CN112758541A.

[0019] Figure 2 It is a schematic diagram of the storage container in the embodiment provided in this application.

[0020] Figure 3 It is a front view of the blocking component provided in this application.

[0021] Figure 4 It is a side view of the blocking component provided in this application.

[0022] Figure 5 This is a top view of the blocking component provided in this application.

[0023] Figure 6 It is a three-dimensional schematic diagram of the blocking component provided in this application.

[0024] In the figure: 101 represents the valve group component, 102 represents the cap, 103 represents the protective baffle, 104 represents the bolt connecting the container body and the valve group component 101, 301 represents the fastening cover, 302 represents the pressure gauge, 303 represents the stop valve, 304 represents the fastening frame, 305 represents the retaining hook, and 306 represents the nut at the end of the retaining hook. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. However, it should be understood that the present application is not limited to the embodiments described below, and the technical concept of the present application can be implemented in combination with other well-known technologies or other technologies with the same functions as those well-known technologies.

[0026] In the description of the following specific embodiments, in order to clearly show the structure and working method, many directional words will be used for description, but words such as "front", "rear", "left", "right", "outside", "inside", "outward", "inward", "axial", and "radial" should be understood as convenient terms and should not be understood as restrictive terms.

[0027] In the following description of the specific embodiments, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on the present application. Furthermore, when a first structure is described as being positioned "above" or "below" a second structure, this should be understood to mean that the first structure is positioned farther from or closer to a horizontal plane.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and do not refer to limitations on time sequence, quantity, or importance. They should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Instead, they are used solely to distinguish one technical feature from another in the technical solution. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "multiple" means two or more, unless otherwise clearly specified. Similarly, qualifiers similar to "one" appearing in this article do not refer to limitations on quantity, but rather describe technical features that have not appeared in the previous text. Similarly, unless a noun is modified by a specific quantitative quantifier, it should be regarded in this article as including both singular and plural forms. In this technical solution, the technical feature can be included in both the singular and plural. Similarly, modifiers similar to "approximately" and "approximately" that appear before a numeral in this article generally include the number itself, and their specific meaning should be understood in conjunction with the context.

[0029] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0030] In this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," and the like are to be interpreted broadly. For example, the connection may be fixed, removable, or integral; it may be mechanical or electrical; it may be directly connected or indirectly connected through an intermediary; it may be internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. "Fixedly connected," "fixedly connected," or "non-movably connected" is understood to mean a connection between two or more structural components that is not configured to provide relative movement. An example of a fixed connection is a welded connection or a bolted connection, and in some cases, a weld and bolt connection. "Moveably connected," "movably connected," or "movably connected" is understood to mean a connection between two or more structural components that allows horizontal and / or vertical relative movement between the components under extreme dynamic loads. Such connections generally do not allow movement under static loads or typical dynamic loads (e.g., those imposed by light / moderate wind forces).

[0031] The term "axial" refers to a direction generally parallel to the axis of rotation, axis of symmetry, or centerline of a component or components. For example, in a cylindrical container having a centerline and opposing circular ends, the "axial" direction may refer to the direction extending parallel to the centerline between the opposing ends. In some cases, the term "axial" may be used with respect to components that are not cylindrical (or otherwise radially symmetric). For example, an "axial" direction for a rectangular housing containing a rotating shaft may be viewed as a direction generally parallel to the axis of rotation of the shaft. Additionally, the term "radial," as used herein, may refer to the direction or relationship of a component relative to a line extending perpendicularly outward from a shared centerline, axis, or similar reference.

[0032] The terms “unit,” “item,” “thing,” and “module” described in this specification mean units for processing at least one function and operation and can be implemented by hardware components or software components and a combination thereof.

[0033] The terms "high pressure" and "medium pressure" imply that high pressure is higher than medium pressure, so the difference between the two may be relatively small.

[0034] Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as preferred or advantageous may be combined with any other feature indicated as preferred or advantageous.

[0035] Specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments may be presented throughout the multiple views of the accompanying drawings. Identical reference numerals in the embodiments generally denote identical or corresponding elements. Therefore, the descriptions of the embodiments are incorporated herein, and descriptions of subject matter common to the embodiments are generally not repeated here.

[0036] like Figure 2 As shown, the present application provides a sealing component for a container, wherein the container comprises:

[0037] A container body, wherein the container body is used to store materials;

[0038] A valve assembly 101 is provided at the top end of the container body for opening and closing the container to control the flow of materials into or out of the container; the container body and the valve assembly 101 are connected by bolts 104.

[0039] A cap 102 is sleeve-shaped and covers the valve assembly 101;

[0040] A blocking component includes a fastening cover 301, a fastening frame 304 and a retaining hook 305. The entire blocking component covers the cap 102 and the valve assembly 101.

[0041] The fastening frame 304 is pressed against the fastening cover 301, and the retaining hook 305 is connected to the fastening frame 304 extending in a radial direction, and can releasably hook the container body. The retaining hook 305 is connected to the fastening frame 304 through a nut 306 at its end. Figure 4 and Figure 5 As shown, the fastening frame 304 and the retaining hook 305 can be fixed by bolt connection, and when the fastening frame 304 is disassembled or transported, only the user needs to spend minimal effort or manual dexterity to release the fastening frame 304. The retaining hook 305 hangs down from the outer periphery of the fastening frame 304.

[0042] like Figure 3 As shown, the retaining hooks 305 are correspondingly connected to the fastening frame 304 extending in a radial direction. The retaining hooks 305 are symmetrically distributed with the axial direction of the container body as the symmetry axis, and are exemplarily arranged in a ring or a diagonal arrangement to maintain uniform force. A plurality of retaining hooks 305 can be arranged to be opposite in the diameter direction of the fastening cover 301, engaging and fixing the fastening frame 304. The fastening frame 304 applies downward pressure to the fastening cover 301. As a result, the valve group component 101 at the top end of the container body is pressed and retained below the sealing component. The retaining hooks 305 can be opposite in the radial direction of the container body to releasably lock the fastening frame 304 and the fastening cover 301 to prevent the fastening frame 304, the fastening cover 301 from axial separation from the container body.

[0043] A protective baffle 103 can be installed on the outer periphery of the container body to facilitate transport. Typically, the protective baffle 103 of the container body has evenly distributed openings, such as two openings arranged opposite each other or four openings arranged along the circumference. Retaining hooks 305 are hooked and locked to the openings on the outer periphery of the container body, allowing the fastening frame 304 to tightly abut (press) against the fastening cover 301 over a large area, maintaining a seal between the fastening cover 301 and the container body.

[0044] Those skilled in the art will appreciate that it is sufficient to ensure that the fastening frame 304 is adapted to the width of the protective baffle 103 at the top of the container body and evenly compresses the fastening cover 301. The size and weight of the fastening frame 304 are not particularly limited.

[0045] The fastening frame 304 must not only meet the requirement of uniform force on the fastening cover 301 but also reduce the burden on the operator during handling. Therefore, the fastening frame can be H-shaped or #-shaped.

[0046] The retaining hook 305 is bent in the direction away from the container body. The retaining hook 305 passes through the opening (not shown in the figure), so that the fastening frame 304 and the retaining hook 305 can produce a linkage effect, providing a fulcrum for pressing the fastening cover 301 downward. After the retaining hook 305 is fixed, it drives the fastening frame 304 to press the fastening cover 301 downward to maintain the seal between the fastening cover 301 and the container body. The degree of tightness between the retaining hook 305 and the opening can be adjusted up and down by the nut 306 and bolt at the end of the retaining hook. Adjusting the torque of the nut 306 at the end of the retaining hook can change the degree of tightness between the fastening frame 304 and the retaining hook 305. The retaining hook 305 can be formed as a whole, and the overall bending effect can reduce the weak points of stress better than separate welding.

[0047] The fastening frame 304 can be made of 304 stainless steel, and the surface is painted with anti-corrosion paint to play an acid-resistant role. The fastening frame 304 usually does not come into contact with the leaked fluid material.

[0048] The material of the fastening cover 301 can be made of alloy, such as aluminum alloy. The fastening cover 301 may be in direct contact with the fluid material leaked from the container and needs to be acid-resistant.

[0049] like Figure 6 As shown, taking a dichlorosilane storage tank as an example, if the gas leak alarm indicates that dichlorosilane in the container is leaking, the operator can follow the steps below to seal it.

[0050] S1: The fastening cover 301 is placed on the top of the container body to seal the cap 102 and the valve assembly 101 at the top of the container body.

[0051] S2: Position the fastening frame 304 and press it downward. Lower the retaining hook 305 and hook it into the opening on the protective baffle 103 around the outer periphery of the container. Adjust the nut 306 and bolt at the end of the retaining hook so that the retaining hook is tightly hooked around the opening, maintaining a tight tension fixation.

[0052] S3: A pressure gauge 302 is connected to the tightening cap 301. If the pressure gauge reading rises, it indicates that there is a high probability that dichlorosilane is still leaking inside the tightening cap 301. At this time, inert gas is introduced to displace the leak, causing the pressure inside the tightening cap 301 to become positive, greater than the pressure of the dichlorosilane in the container body, thereby preventing the dichlorosilane from leaking and sealing the container.

[0053] In addition, the sealing component in the present application can also be used to verify the airtightness function of the container before use.

[0054] With the shutoff valve 303 closed, perform an airtightness test on the fastening cap 301 to confirm that the connection between the container body and the fastening cap 301 meets the airtightness requirements. This airtightness test is performed using 0.6 MPa nitrogen. This airtightness test involves sealing the container to create an internal pressure of approximately 0.6 MPa and maintaining this pressure for 5 minutes without causing a pressure drop. This confirms that the connection meets the airtightness requirements. Use the bubble leak detection method to check that all connection points are free of bubbles.

[0055] Furthermore, for the recovery of residual gas after leakage, conventional methods known to those skilled in the art include filling the container with an inert gas that does not react with dichlorosilane, so that the internal pressure of the container is greater than the pressure of the residual gas recovery device. The residual dichlorosilane gas is discharged to the residual gas recovery device for recovery by utilizing the pressure difference, and the filling and discharging actions are repeated until the container is completely cleared of the residual dichlorosilane gas. The container is first evacuated to form a vacuum state, and then the inert gas is filled into the container again to form a positive pressure state. The valve of the container is closed, and all the gas in the recovery pipeline is discharged to the washing tower to form a gas-liquid two-phase contact, and the harmful gas is absorbed by the washing liquid. After confirming that the recovery pipeline is in a safe state, the pipe is dismantled, and finally the container after the residual gas is recovered is moved to the waiting area for static storage.

[0056] The present invention is described in this specification as a preferred embodiment of the present invention. The above embodiments are intended to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning, or limited experimentation based on the concept of the present invention should be within the scope of the present invention.

Claims

1. A sealing component for a container, the container comprising a container body for storing materials, characterized in that: The blocking component includes a fastening cover, a fastening frame and a retaining hook. The fastening frame is pressed on the fastening cover. The retaining hook is correspondingly connected to the fastening frame extending in a radial direction, hanging down from the outer periphery of the fastening frame, and releasably hooking the container body.

2. The blocking member according to claim 1, wherein: The retaining hooks are symmetrically distributed with the axial direction of the container body as the symmetry axis.

3. The blocking member according to claim 2, wherein: The retaining hooks are arranged in a circular pattern or in a diagonal pattern.

4. The blocking member according to claim 1, wherein: The fastening bracket and the retaining hook are held in place by means of a bolt connection.

5. The blocking member according to claim 1, wherein: The fastening frame is in an H-shape or a #-shape.

6. The blocking member according to claim 1, wherein: The retaining hook is bent in a direction away from the container body.

7. The blocking member according to claim 1, wherein: A protective baffle is provided on the periphery of the container body, and openings are evenly distributed on the protective baffle to keep the hooks hooked and locked at the openings.

8. The blocking member according to claim 7, wherein: The degree of hooking between the retaining hook and the opening is adjusted by a nut and a bolt provided at the end of the retaining hook.

Images