Sealing isolation structure, double-layer stainless steel barrel welding and cutting device and method

Abstract

The application provides a sealed isolation structure, a double-layer stainless steel barrel welding and cutting device and method, and relates to the technical field of welding and cutting, to solve the problem of poor safety that the operator and the leaked dangerous gas are in the same space when filling the dangerous gas. The sealed isolation structure comprises a through port arranged on an intermediate isolation plate, an openable sealing door arranged at the through port, and a sealing structure. The intermediate isolation plate can separate the area surrounded by the cement wall plate assembly into a first area and a second area which are not connected with each other. When the sealing door is opened, part of the section of the outer barrel of the double-layer stainless steel barrel can extend into the second area through the through port and can be taken out of the second area from the through port. When the outer barrel is located in the second area, the outer barrel can be connected with the lifting clamping and rotating mechanism located in the second area. The sealing structure is arranged between the outer barrel and the side wall of the through port.

Description

Technical Field

[0001] This invention relates to the field of welding and cutting technology, and in particular to a sealing and isolation structure, a welding and cutting device and method for a double-layer stainless steel barrel. Background Technology

[0002] With the rapid development of the chemical industry, more and more chemical products that can harm human health and pollute the environment are being used in industry. Therefore, strict requirements and regulations have been put forward for the transfer and storage of these chemical products to prevent leakage.

[0003] Currently, the main method for transferring and storing this type of hazardous chemical gas is to fill the gas into transfer containers before transferring and storing it. However, during the filling process, partial leaks often occur. Since the filling equipment and operators are usually in the same space, this can have a certain adverse effect on the operators.

[0004] To address this issue, this patent proposes a sealed isolation structure, welding and cutting device, and method to isolate operators from potentially leaking hazardous gases, thereby ensuring the health and safety of the operators. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a sealed isolation structure, a double-layer stainless steel barrel welding and cutting device and method, to solve the technical problem of poor safety when operators are in the same space as the leaking dangerous gas during the filling of dangerous gases.

[0006] To achieve the above objectives, the present invention provides a sealed isolation structure, including an opening on an intermediate isolation plate, an openable sealing door at the opening, and a sealing structure. The intermediate isolation plate can divide the area enclosed by the cement wall panel assembly into a first area and a second area that are not interconnected. When the sealing door is opened, a portion of the outer barrel of the double-layer stainless steel barrel can extend into the second area through the opening and can also be taken out of the second area. When the outer barrel is located in the second area, it can be connected to a lifting, clamping, and rotating mechanism located in the second area. The sealing structure is disposed between the outer barrel and the side wall of the opening.

[0007] As a further improvement of the present invention, the sealing door is disposed on the surface of the intermediate partition plate facing the first region, and a sliding connection is formed between the sealing door and the intermediate partition plate.

[0008] As a further improvement of the present invention, the sealing structure is a sealing ring, and the side wall of the port is provided with a mounting part that cooperates with the sealing ring.

[0009] As a further improvement of the present invention, the sealing ring is a rubber ring, and the mounting part is a groove provided on the side wall of the port. The shape of the groove matches the shape of the rubber ring, and the rubber ring is embedded in the groove.

[0010] A welding and cutting device for double-layer stainless steel barrels includes a cement wall panel assembly, an intermediate partition plate, a lifting, clamping, and rotating mechanism, a welding and cutting mechanism, and a sealing and isolation structure. The intermediate partition plate is disposed inside the area enclosed by the cement wall panel assembly and divides the internal space enclosed by the cement wall panel assembly into a first area and a second area. The lifting, clamping, and rotating mechanism is installed in the second area. The sealing and isolation structure is provided on the intermediate partition plate. The welding and cutting mechanism is installed on the second area to weld and cut the double-layer stainless steel barrels installed in the second area.

[0011] As a further improvement of the present invention, the side of the cement wall panel assembly is provided with an installation notch, the installation notch is connected to the second region, an installation platform is fixed at the installation notch, a support surface is formed on the installation platform, the welding and cutting mechanism is provided on the support surface and the welding and cutting mechanism is slidably connected to the installation platform.

[0012] As a further improvement of the present invention, the installation platform includes a support plate and an installation plate. The support plate is horizontally arranged and fixed at the installation notch. The upper surface of the support plate forms the support surface. The installation plate is fixedly connected to the cement wall panel assembly and is arranged perpendicular to the lower surface of the support plate. A reinforcing rib is provided between the installation plate and the support plate.

[0013] As a further improvement of the present invention, a slide rail is fixedly provided on the support surface, and a sliding part that cooperates with the slide rail is provided at the bottom of the welding and cutting mechanism.

[0014] As a further improvement of the present invention, an auxiliary clamping mechanism is provided on the surface of the intermediate partition plate facing the second region, and the two auxiliary clamping mechanisms are respectively provided on both sides of the double-layer stainless steel barrel;

[0015] The auxiliary clamping mechanism includes a power unit and a clamping unit. The power unit is fixedly disposed on the surface of the intermediate partition plate facing the second region and is connected to the clamping unit. The clamping unit is slidably connected to the surface of the intermediate partition plate facing the second region. The two clamping units can move in opposite or opposite directions under the drive of the corresponding power units.

[0016] A method for welding and cutting a double-layer stainless steel drum, using the aforementioned double-layer stainless steel drum welding and cutting device, includes the following steps:

[0017] The outer layer of the double-walled stainless steel drum enters the second area through the sealing and isolation structure and is fixedly held by the lifting, clamping, and rotating mechanism.

[0018] The substance to be stored is injected into the outer barrel;

[0019] The inner layer of the double-walled stainless steel drum is placed inside the outer layer as a sealing cap;

[0020] The lifting, clamping and rotating mechanism drives the double-layer stainless steel barrel to move, while the welding and cutting mechanism starts an arc to seal and weld the inner barrel to the outer barrel.

[0021] After the weld has cooled, the double-layer stainless steel barrel is cut from the weld position using the welding and cutting mechanism.

[0022] The sealing and isolation structure provided by this invention uses a double-layered stainless steel outer tank primarily for storing and sealing environmentally harmful substances (liquids or gases, etc.). A first area is located above a second area. The first area is the injection area for the substance to be stored (where hazardous substances exist and personnel cannot enter). The second area is the equipment placement area, free of hazardous substances, where operators can enter to maintain the equipment and replace consumable parts. When not in operation, the sealing door is closed. During operation, the sealing door is first opened, the outer tank is inserted through the opening into the second area, ensuring the sealing ring fits tightly against the outer tank wall, and finally, the sealing weld and cutting are completed. The sealing and isolation structure ensures that hazardous substances will not enter the second area. This structure is used to isolate operators from potentially leaking hazardous media when filling hazardous gases, ensuring the health and safety of the operators. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial structural schematic diagram of the double-layer stainless steel barrel welding and cutting device provided in an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of section A;

[0026] Figure 3 This is another partial structural schematic diagram of the double-layer stainless steel barrel welding and cutting device provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the double-layer stainless steel bucket provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the cut double-layer stainless steel bucket provided in an embodiment of the present invention.

[0029] Reference numerals: 1. Sealed door; 2. Sealed structure; 3. Intermediate partition plate; 4. Cement wall panel assembly; 5. Double-layer stainless steel barrel; 51. Outer barrel; 52. Inner barrel; 6. First zone; 7. Second zone; 8. Lifting, clamping, and rotating mechanism; 9. Installation notch; 10. Installation platform; 101. Support plate; 102. Mounting plate; 103. Reinforcing rib; 11. Slide rail; 12. Sliding part; 13. Auxiliary clamping mechanism; 14. Welding and cutting mechanism. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0031] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] This invention provides a sealed isolation structure, including an opening on an intermediate isolation plate 3, an openable sealing door 1 at the opening, and a sealing structure 2, such as... Figure 3 As shown, the intermediate partition 3 can divide the area enclosed by the cement wall panel assembly 4 into a first area 6 and a second area 7 that are not connected to each other. When the sealing door 1 is opened, a section of the outer barrel 51 of the double-layer stainless steel barrel 5 can be extended into the second area 7 through the opening and can also be taken out of the second area 7. When the outer barrel 51 is located in the second area 7, the outer barrel 51 can be connected to the lifting clamping and rotating mechanism 8 located in the second area 7. The sealing structure 2 is set between the outer barrel 51 and the side wall of the opening.

[0034] In this embodiment, the outer tank 51 of the double-layer stainless steel tank 5 is mainly used to store and seal some environmentally harmful substances (liquids or gases, etc.). The first area 6 is located above the second area 7. The first area 6 is the injection area for the substances to be stored (there are harmful substances in the environment, and personnel cannot enter). The second area 7 is the equipment placement area (there are no harmful substances in this area, and personnel can enter). Operators can enter the second area 7 to maintain the equipment and replace consumable parts.

[0035] A sealing door 1 is disposed on the surface of the intermediate partition plate 3 facing the first region 6, and a sliding connection is formed between the sealing door 1 and the intermediate partition plate 3 to facilitate opening and closing the passage. When the passage is closed by the sealing door 1, the first region 6 and the second region 7 are not connected to each other.

[0036] In this embodiment, the sealing structure 2 is a sealing ring, and an mounting part that mates with the sealing ring is provided on the side wall of the opening. Specifically, the sealing ring in this embodiment is a rubber ring, and the mounting part is a groove provided on the side wall of the opening. The shape of the groove matches the shape of the rubber ring, and the rubber ring is embedded in the groove. When the sealing door 1 opens the opening, a section of the outer barrel 51 can extend into the second region 7 through the opening. This is because the outer barrel 51 forms a sealed connection with the side wall of the opening through the sealing ring, thereby preventing the first region 6 and the second region 7 from communicating with each other and ensuring the safety of operations within the second region 7.

[0037] When not in operation, the sealing door 1 is closed. During operation, the sealing door 1 is first opened, and the outer barrel 51 is passed through the opening into the second area 7. This action can be achieved remotely using an existing robotic arm, ensuring that the sealing ring fits tightly against the wall of the outer barrel 51. Finally, the sealing welding and cutting are completed. The sealing and isolation structure ensures that hazardous substances will not enter the second area 7.

[0038] As a second aspect of the present invention, the present invention also provides a welding and cutting device for a double-layer stainless steel barrel 5, including a cement wall panel assembly 4, an intermediate partition plate 3, a lifting, clamping and rotating mechanism 8, a welding and cutting mechanism 14, and the aforementioned sealing and isolation structure. The intermediate partition plate 3 is disposed inside the area enclosed by the cement wall panel assembly 4 and divides the internal space enclosed by the cement wall panel assembly 4 into a first area 6 and a second area 7. The lifting, clamping and rotating mechanism 8 is installed in the second area 7. The intermediate partition plate 3 is provided with a sealing and isolation structure. The welding and cutting mechanism 14 is installed on the second area 7 to weld and cut the double-layer stainless steel barrel 5 installed in the second area 7.

[0039] The lifting, clamping, and rotating mechanism 8 in this embodiment is existing technology. This mechanism can clamp and fix the double-layer stainless steel barrel 5, and can be electrically controlled to lift and lower, thereby adjusting the position for welding and cutting. At the same time, it can also drive the double-layer stainless steel barrel 5 to rotate, providing the actions required for welding and cutting.

[0040] In this embodiment, the cement wall panel assembly 4 has an installation notch 9 on its side, which is connected to the second region 7. An installation platform 10 is fixed at the installation notch 9, and a support surface is formed on the installation platform 10. A welding and cutting mechanism 14 is provided on the support surface and is slidably connected to the installation platform 10. Furthermore, a slide rail 11 is fixedly provided on the support surface, and a sliding part 12 that cooperates with the slide rail 11 is provided at the bottom of the welding and cutting mechanism 14.

[0041] Specifically, in combination Figure 1 and Figure 2 The installation platform 10 includes a support plate 101 and an installation plate 102. The support plate 101 is horizontally set and fixed at the installation notch 9. The upper surface of the support plate 101 forms a support surface. The installation plate 102 is fixedly connected to the cement wall panel assembly 4 and is set perpendicular to the lower surface of the support plate 101. A reinforcing rib 103 is provided between the installation plate 102 and the support plate 101.

[0042] In addition, in this embodiment, an auxiliary clamping mechanism 13 is provided on the surface of the intermediate partition plate 3 facing the second region 7. Two auxiliary clamping mechanisms 13 are respectively provided on both sides of the double-layer stainless steel barrel 5. The auxiliary clamping mechanism 13 includes a power unit and a clamping unit. The power unit is fixedly provided on the surface of the intermediate partition plate 3 facing the second region 7 and is connected to the clamping unit. The clamping unit is slidably connected to the surface of the intermediate partition plate 3 facing the second region 7. The two clamping units can move in opposite or opposite directions under the drive of the corresponding power units. This auxiliary clamping mechanism 13 can provide auxiliary clamping during cutting. Since the cutting requires a large force and the outer barrel 51 is relatively long, setting clamping points near the cutting position can improve the stability of cutting.

[0043] After the material to be stored is injected into the outer drum 51, the inner drum 52 is placed inside, and then the inner drum 52 and the outer drum 51 are sealed and welded together. After welding, a cut is made from the center of the weld, and the cut portion is transferred and stored. In this invention, both the outer drum 51 and the inner drum 52 are made of stainless steel, with a wall thickness of 3-5 mm and a length of 2-3 m. Figure 4 As shown.

[0044] Furthermore, the present invention also provides a welding and cutting method for a double-layer stainless steel barrel 5, which uses the aforementioned welding and cutting device for the double-layer stainless steel barrel 5 to perform welding and cutting, including the following steps:

[0045] Step S31: The outer barrel 51 of the double-layer stainless steel barrel 5 enters the second area 7 through the sealing and isolation structure and is fixedly clamped by the lifting and clamping rotation mechanism 8.

[0046] Step S32: Inject the substance to be stored into the outer container 51;

[0047] Step S33: Place the inner barrel 52 of the double-layer stainless steel barrel 5 into the outer barrel 51 as a sealing cap; wherein the assembly gap between the inner barrel 52 and the outer barrel 51 is no more than 0.2mm.

[0048] Step S34: The double-layer stainless steel barrel 5 is moved by the lifting clamping and rotating mechanism 8, and at the same time the welding and cutting mechanism 14 starts to arc, sealing and welding the inner barrel 52 and the outer barrel 51.

[0049] Step S35: After the weld has cooled, the double-layer stainless steel barrel 5 is cut from the weld position by the welding cutting mechanism 14.

[0050] Currently, the commonly used welding method in industry is tungsten inert gas (TIG) welding. However, due to the lack of concentrated energy in TIG welding, the weld penetration is shallow. When welding double-layer stainless steel drums 5, it is necessary to bevel the outer drum 51 at the welding position to achieve good fusion of the inner drum 52, which reduces production efficiency. Simultaneously, to ensure penetration, a high current and low welding speed are required, which increases heat input and leads to severe welding deformation, adversely affecting weld quality. To solve these problems, plasma arc welding is used in step S34. The plasma arc welding current in step S34 is 160–175 A; the welding speed is 90–110 cm / min; the plasma gas flow rate is 1.8–2.2 L / min; the shielding gas flow rate is 11–15 L / min; the tungsten electrode retraction length is 4 mm; and the nozzle-to-workpiece distance is 6 mm. Plasma arc welding has high energy density and strong penetration, which can minimize welding heat input while ensuring penetration, thereby reducing welding deformation and improving weld quality.

[0051] The following steps are included before step S31:

[0052] Step S30: Clean the outer wall of the inner barrel 52 and the inner wall of the outer barrel 51 with anhydrous ethanol.

[0053] It should be noted that after step S33 and before step S34, it is preferable to use an auxiliary clamping mechanism 13 to clamp and fix the double-layer stainless steel barrel 5 to prevent the double-layer stainless steel barrel 5 from shifting during subsequent welding and cutting operations, thus better ensuring the stability of the double-layer stainless steel barrel 5.

[0054] See Figure 4 In this embodiment, the outer bucket 51 is a hollow structure with a closed bottom and an open top. Inserting the inner bucket 52 seals the contents of the outer bucket 51. The inner bucket 52 is a hollow structure with closed ends. Finally, the cut-off sealed container (referring to...) Figure 5 The outermost section 51 and the upper section of the innermost section 52 are transferred. The remaining sections of the outermost section 51 and the innermost section 52 (where the upper section of the innermost section 52 serves as the bottom of the remaining outermost section 51) can continue to be used as storage containers, repeating the above steps. One outermost section 51 can undergo 3-4 weld cuts. The lower section of one innermost section 52 can serve as the top cover of a sealed container, and the upper section of that innermost section 52 can serve as the bottom of another sealed container. Figure 5 As shown.

[0055] In this embodiment, the same outer barrel 51 can be sealed multiple times through multiple inner barrels 52, saving costs; the second area 7 formed during the entire operation is free of harmful substances, ensuring the safety of the operation; the hollow inner barrel 52 is used as the sealing element, which is simple in structure and easy to operate.

[0056] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sealed isolation structure, characterized in that... The system includes an opening on a central partition plate, a slewing and sealing door at the opening, and a sealing structure. The central partition plate divides the area enclosed by the cement wall panel assembly into two non-communicating areas: a first area and a second area. When the sealing door is open, a portion of the outer layer of the double-layer stainless steel drum can extend into the second area through the opening and exit out of the second area. When the outer layer is within the second area, it can connect to a lifting, clamping, and rotating mechanism located within the second area. The sealing structure is located between the outer layer and the sidewall of the opening. An auxiliary clamping mechanism is provided on the surface of the central partition plate facing the second area, with two auxiliary clamping mechanisms respectively located on either side of the double-layer stainless steel drum. Each auxiliary clamping mechanism includes a power unit and a clamping unit. The power unit is fixedly mounted on the surface of the central partition plate facing the second area and connected to the clamping unit. The clamping unit is slidably connected to the surface of the central partition plate facing the second area. The two clamping units can move in opposite or opposite directions under the drive of their respective power units.

2. The sealing and isolation structure according to claim 1, characterized in that... The sealing door is disposed on the surface of the intermediate partition plate facing the first region, and a sliding connection is formed between the sealing door and the intermediate partition plate.

3. The sealing and isolation structure according to claim 1, characterized in that... The sealing structure is a sealing ring, and the side wall of the opening is provided with a mounting part that mates with the sealing ring.

4. The sealing and isolation structure according to claim 3, characterized in that... The sealing ring is a rubber ring, and the mounting part is a groove provided on the side wall of the port. The shape of the groove matches the shape of the rubber ring, and the rubber ring is embedded in the groove.

5. A welding and cutting device for double-layer stainless steel barrels, characterized in that... The invention includes a cement wall panel assembly, an intermediate partition plate, a lifting, clamping, and rotating mechanism, a welding and cutting mechanism, and a sealing and isolation structure as described in any one of claims 1 to 4. The intermediate partition plate is disposed inside the area enclosed by the cement wall panel assembly and divides the internal space enclosed by the cement wall panel assembly into a first area and a second area. The lifting, clamping, and rotating mechanism is installed in the second area. The sealing and isolation structure is provided on the intermediate partition plate. The welding and cutting mechanism is installed on the second area to weld and cut a double-layer stainless steel barrel installed in the second area.

6. The double-layer stainless steel barrel welding and cutting device according to claim 5, characterized in that... The cement wall panel assembly has an installation notch on its side, which is connected to the second area. An installation platform is fixed at the installation notch, and a support surface is formed on the installation platform. The welding and cutting mechanism is provided on the support surface and is slidably connected to the installation platform.

7. The double-layer stainless steel barrel welding and cutting device according to claim 6, characterized in that... The installation platform includes a support plate and an installation plate. The support plate is horizontally arranged and fixed at the installation notch. The upper surface of the support plate forms the support surface. The installation plate is fixedly connected to the cement wall panel assembly and is arranged perpendicular to the lower surface of the support plate. A reinforcing rib is provided between the installation plate and the support plate.

8. The double-layer stainless steel barrel welding and cutting device according to claim 6, characterized in that... A slide rail is fixedly provided on the support surface, and a sliding part that cooperates with the slide rail is provided at the bottom of the welding and cutting mechanism.

9. A method for welding and cutting a double-layer stainless steel bucket, characterized in that... The welding and cutting of a double-layer stainless steel barrel using the welding and cutting device according to any one of claims 5 to 8 includes the following steps: The outer layer of the double-layer stainless steel drum enters the second area through the sealing and isolation structure and is fixedly held by the lifting, clamping, and rotating mechanism; The substance to be stored is injected into the outer container; The inner layer of the double-walled stainless steel drum is placed inside the outer layer as a sealing cap; The lifting, clamping, and rotating mechanism drives the double-layer stainless steel barrel to move, while the welding and cutting mechanism initiates an arc to seal and weld the inner barrel to the outer barrel. After the weld has cooled, the double-layer stainless steel barrel is cut from the weld position using the welding and cutting mechanism.

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