External reinforcing ring of outer tank of low-temperature pressure container

Abstract

The utility model provides an external reinforcing ring of a low-temperature pressure vessel outer tank, which relates to the technical field of reinforcing rings, and comprises a ring body, a fastening device is arranged on the outer surface of the ring body, the fastening device comprises an arc-shaped plate, one side of the arc-shaped plate is rotatably connected with a screw rod, and the other side of the arc-shaped plate is rotatably connected with the screw rod. One side of the outer surface of the arc-shaped plate, which is close to the screw rod, is fixedly connected with two round rods, the two round rods are respectively positioned on the left side and the right side of the screw rod, one side of the ring body is provided with a groove, and the arc-shaped plate is positioned inside the groove. An arc-shaped plate is pushed by rotating a screw to move towards the outside of a groove, one side of the arc-shaped plate is pressed on the outer surface of the low-temperature pressure container, the position of a ring body on the outer surface of the low-temperature pressure container is limited, and auxiliary fixing of the position of the ring body in the welding process is facilitated; the situation that welding is affected by deflection of the ring body is avoided as much as possible, and convenience is improved when the reinforcing ring is installed.

Description

Technical Field

[0001] This utility model relates to the field of reinforcing ring technology, and in particular to an external reinforcing ring for the outer tank of a cryogenic pressure vessel. Background Technology

[0002] Cryogenic pressure vessels refer to containers made of carbon steel, low alloy steel, duplex stainless steel, and ferritic stainless steel with a design temperature below -20℃, as well as containers made of austenitic stainless steel with a design temperature below -196℃. After the production of cryogenic pressure vessels is completed, an external reinforcing ring is usually added to the outside of the container to reinforce the shape of the outer surface of the container.

[0003] When installing an external reinforcing ring, a complete ring is usually placed on the outer surface of the pressure vessel, and then the reinforcing ring is welded to the outside of the vessel using welding tools. During the welding process, the reinforcing ring may become misaligned, affecting the welding effect and efficiency, and causing some inconvenience during installation. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the reinforcing ring may become misaligned during the welding process, affecting the welding effect and efficiency, and causing inconvenience during installation. Therefore, this invention proposes a new type of reinforcing ring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an external reinforcing ring for the outer tank of a cryogenic pressure vessel, comprising a ring body, a fastening device provided on the outer surface of the ring body, the fastening device comprising an arc-shaped plate, a screw rotatably connected to one side of the arc-shaped plate, two round rods fixedly connected to the outer surface of the arc-shaped plate near the screw, the two round rods being located on the left and right sides of the screw respectively, a groove being provided on one side of the ring body, the outer surface of the screw being threadedly connected to the inner wall of the ring body with the groove, the round rods sliding on the inner wall of the ring body, and the arc-shaped plate being located inside the groove.

[0006] The effect achieved by the above-mentioned components is as follows: When welding the reinforcing ring, after the reinforcing ring is placed on the outer surface of the cryogenic pressure vessel, the screw can be rotated to control the screw to move on the inner wall of the ring body, pushing the arc plate to slide on the inner wall of the ring body through the two round rods, so that the arc plate moves out of the groove, pressing one side of the arc plate tightly against the outer surface of the cryogenic pressure vessel, restricting the position of the ring body on the outer surface of the cryogenic pressure vessel, which facilitates the auxiliary fixation of the ring body position during the welding process, and avoids the ring body position deviation from affecting the welding as much as possible, thus improving the convenience of reinforcing ring installation.

[0007] Preferably, a sliding rod is slidably connected to the inner wall of the screw, and a round block is fixedly connected to the end of the sliding rod away from the screw. The length of the screw is slightly greater than the length of the groove.

[0008] The effect achieved by the above components is that when using the fastening device, the sliding rod can be pulled out by pulling the round block to control the sliding rod to slide outward on the inner wall of the screw, thereby increasing the total length of the sliding rod and the screw. It is then more convenient to rotate the round block and the sliding rod to control the rotation of the screw.

[0009] Preferably, a plurality of protrusions are fixedly connected to the outer surface of the circular block, and the protrusions are distributed circumferentially on the outer surface of the circular block.

[0010] The effect achieved by the above components is that the protrusions on the outer surface of the round block make it easier to rotate the round block to control the rotation of the sliding rod and screw, and it is less likely to slip.

[0011] Preferably, a magnetic ring is fixedly connected to the side of the circular block near the sliding rod, and the outer surface of the ring body near the groove is made of a material that can be attracted by a magnet.

[0012] The effect achieved by the above components is as follows: after adjusting the position of the arc plate by controlling the screw rotation through the sliding rod, the sliding rod can be pushed into the screw so that the magnetic ring on one side of the round block is attached to the outer surface of the ring body and magnetically attracted to fix the round block and the sliding rod on one side of the ring body, thus avoiding the sliding rod from sliding out and affecting the normal use of the reinforcing ring after it is installed on the outside of the pressure vessel.

[0013] Preferably, a U-shaped rod is fixedly connected to the end of the round rod away from the arc plate, and the upper and lower ends of the U-shaped rod slide on the upper and lower sides of the ring body, respectively.

[0014] The effect achieved by the above components is as follows: when the rotating screw controls the movement of the arc plate, the U-shaped rod will slide on the upper and lower sides of the ring body while the two round rods slide on the inner wall of the ring body, further restricting the angle between the round rods and the arc plate and the ring body, and avoiding the angle of the arc plate from deviating as much as possible.

[0015] Preferably, a protective device is provided on one side of the arc-shaped plate. The protective device includes a protective plate made of a metal material with a certain degree of elasticity, and the two ends of the protective plate are provided with slots.

[0016] The effect achieved by the above components is as follows: After the reinforcing ring is installed, the two ends of the protective plate can be bent towards the middle to make the outer surface of the protective plate bend. Then, the slots on both sides of the protective plate are locked onto the outer surfaces of the two round rods on both sides of the screw. Afterward, the elastic protective plate returns to its original shape, causing one side to press against the outer surface of the round block, further restricting the position of the sliding rod and the screw, and minimizing the possibility of the sliding rod and the screw shaking or moving on their own.

[0017] Preferably, the width of the middle part of the inner wall of the card slot is greater than the width of the outermost part of the inner wall of the card slot.

[0018] The effect achieved by the above components is that, by setting the width of the middle part of the inner wall of the slot to be greater than the width of the outermost part of the inner wall of the slot, the protective plate is less likely to slip off when the slot on the outer surface of the protective plate is engaged with the outer surface of the round rod.

[0019] Preferably, two protruding strips are fixedly connected to one side of the protective plate, and the protruding strips are respectively located on the surface of the protective plate near the slot.

[0020] The effect achieved by the above components is that by pressing against the two protruding strips on the outer surface of the protective plate with your hand, you can more easily push the curved plate towards the center and bend it to remove the protective plate.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting a fastening device, when welding the reinforcing ring, the screw is rotated to push the arc plate to move the arc plate outward from the groove, pressing one side of the arc plate against the outer surface of the cryogenic pressure vessel, thus restricting the position of the ring on the outer surface of the cryogenic pressure vessel. This facilitates the auxiliary fixing of the ring position during the welding process, minimizes the possibility of the ring position deviating from its normal position and affecting the welding, and improves the convenience of installing the reinforcing ring. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the ring body of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the arc-shaped plate of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the U-shaped rod of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the protective plate of this utility model.

[0028] Legend: 1. Ring body; 2. Fastening device; 3. Protective device; 21. Groove; 22. Arc plate; 23. Screw; 24. Round rod; 25. Sliding rod; 26. Round block; 27. Protrusion; 28. Magnetic ring; 29. ​​U-shaped rod; 31. Protective plate; 32. Slot; 33. Raised strip. Detailed Implementation

[0029] Example 1, such as Figure 1-2As shown, an external reinforcing ring for a cryogenic pressure vessel includes a ring body 1. A fastening device 2 is provided on the outer surface of the ring body 1. The fastening device 2 includes an arc-shaped plate 22. A screw 23 is rotatably connected to one side of the arc-shaped plate 22. Two round rods 24 are fixedly connected to the outer surface of the arc-shaped plate 22 near the screw 23, respectively located on the left and right sides of the screw 23. A groove 21 is formed on one side of the ring body 1. The outer surface of the screw 23 is threadedly connected to the inner wall of the ring body 1 where the groove 21 is located. The round rods 24 slide on the inner wall of the ring body 1. The arc-shaped plate 22 is located within the groove 21. Internally, when welding the reinforcing ring, after the reinforcing ring is placed on the outer surface of the cryogenic pressure vessel, the screw 23 can be rotated to control the screw 23 to move on the inner wall of the ring body 1, pushing the arc plate 22 to slide on the inner wall of the ring body 1 through the two round rods 24, so that the arc plate 22 moves outward of the groove 21, pressing one side of the arc plate 22 tightly on the outer surface of the cryogenic pressure vessel, restricting the position of the ring body 1 on the outer surface of the cryogenic pressure vessel, which facilitates the auxiliary fixation of the position of the ring body 1 during the welding process, and avoids the position of the ring body 1 from being skewed, thus affecting the welding and improving the convenience of installing the reinforcing ring.

[0030] Reference Figure 1-4 As shown in this embodiment: a sliding rod 25 is slidably connected to the inner wall of the screw 23, and a round block 26 is fixedly connected to the end of the sliding rod 25 away from the screw 23. The length of the screw 23 is slightly greater than the length of the groove 21. When using the fastening device 2, the round block 26 can be pulled to control the sliding rod 25 to slide outward on the inner wall of the screw 23, thereby pulling out the sliding rod 25 and increasing the total length of the sliding rod 25 and the screw 23. Then, it is more convenient to rotate the round block 26 and the sliding rod 25 to control the rotation of the screw 23. Several protrusions 27 are fixedly connected to the outer surface of the round block 26. The protrusions 27 are circumferentially distributed on the outer surface of the round block 26. Holding the protrusions 27 on the outer surface of the round block 26 makes it easier to rotate the round block 26 to control the rotation of the sliding rod 25 and the screw 23 and prevents the hand from slipping.

[0031] Reference Figure 2-4As shown in this embodiment: a magnetic ring 28 is fixedly connected to the side of the circular block 26 near the sliding rod 25. The outer surface of the ring body 1 near the groove 21 is made of a material that can be attracted by a magnet. After the position of the arc plate 22 is adjusted by controlling the rotation of the screw 23 through the sliding rod 25, the sliding rod 25 can be pushed into the screw 23 so that the magnetic ring 28 on the side of the circular block 26 is attached to the outer surface of the ring body 1 and magnetically attracted, fixing the circular block 26 and the sliding rod 25 to one side of the ring body 1, and minimizing the sliding rod 25 from moving towards the groove 21. The outward sliding affects the normal use of the reinforcing ring after it is installed on the outside of the pressure vessel. A U-shaped rod 29 is fixedly connected to the end of the round rod 24 away from the arc plate 22. The upper and lower ends of the U-shaped rod 29 slide on the upper and lower sides of the ring body 1, respectively. When the screw 23 is rotated to control the movement of the arc plate 22, the U-shaped rod 29 will slide on the upper and lower sides of the ring body 1 when the two round rods 24 slide on the inner wall of the ring body 1. This further restricts the angle between the round rod 24 and the arc plate 22 and the ring body 1, and avoids the angle of the arc plate 22 from deflecting as much as possible.

[0032] Reference Figure 1 and Figure 4 As shown in this embodiment: a protective device 3 is provided on one side of the arc plate 22. The protective device 3 includes a protective plate 31, which is made of a metal material with a certain elasticity. The two ends of the protective plate 31 are provided with slots 32. After the reinforcing ring is installed, the two ends of the protective plate 31 can be bent towards the middle to make the outer surface of the protective plate 31 bend. Then, the slots 32 on both sides of the protective plate 31 are locked onto the outer surface of the two round rods 24 on both sides of the screw 23. Afterward, the elastic protective plate 31 returns to its original shape and one side will press against the outer surface of the round block 26, further restricting the position of the sliding rod 25 and the screw 23, and avoiding the sliding rod 25 and the screw 23 from shaking or moving on their own as much as possible.

[0033] Reference Figure 1 and 4 As shown in this embodiment: the width of the middle of the inner wall of the slot 32 is greater than the width of the outermost end of the inner wall of the slot 32. By setting the width of the middle of the inner wall of the slot 32 to be greater than the width of the outermost end of the inner wall of the slot 32, the protective plate 31 is not easy to slip off when the slot 32 on the outer surface of the protective plate 31 is locked on the outer surface of the round rod 24. Two protrusions 33 are fixedly connected to one side of the protective plate 31. The protrusions 33 are located on the surface of the protective plate 31 near the slot 32. By pressing the two protrusions 33 on the outer surface of the protective plate 31 with your hand, it is easier to push the arc plate 22 towards the middle and bend it to remove the protective plate 31.

[0034] Working principle: When welding the reinforcing ring, after the reinforcing ring is placed on the outer surface of the cryogenic pressure vessel, the screw 23 can be rotated to control the movement of the screw 23 on the inner wall of the ring body 1, pushing the arc plate 22 to slide on the inner wall of the ring body 1 through the two round rods 24, so that the arc plate 22 moves out of the groove 21, pressing one side of the arc plate 22 against the outer surface of the cryogenic pressure vessel, restricting the position of the ring body 1 on the outer surface of the cryogenic pressure vessel, which facilitates the auxiliary fixation of the position of the ring body 1 during the welding process. After the reinforcing ring is installed, the two ends of the protective plate 31 can be bent towards the middle to bend the outer surface of the protective plate 31. Then, the slots 32 on both sides of the protective plate 31 are locked onto the outer surface of the two round rods 24 on both sides of the screw 23. Then, the elastic protective plate 31 returns to its original shape, so that one side abuts against the outer surface of the round block 26, further restricting the position of the sliding rod 25 and the screw 23.

Claims

1. An external reinforcing ring for the outer tank of a cryogenic pressure vessel, comprising a ring body (1), characterized in that: The outer surface of the ring body (1) is provided with a fastening device (2). The fastening device (2) includes an arc plate (22). A screw (23) is rotatably connected to one side of the arc plate (22). Two round rods (24) are fixedly connected to the outer surface of the arc plate (22) near the screw (23). The two round rods (24) are located on the left and right sides of the screw (23) respectively. A groove (21) is opened on one side of the ring body (1). The outer surface of the screw (23) is threadedly connected to the inner wall of the groove (21) of the ring body (1). The round rods (24) slide on the inner wall of the ring body (1). The arc plate (22) is located inside the groove (21).

2. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 1, characterized in that: The inner wall of the screw (23) is slidably connected to a sliding rod (25), and a round block (26) is fixedly connected to one end of the sliding rod (25) away from the screw (23). The length of the screw (23) is slightly greater than the length of the groove (21).

3. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 2, characterized in that: The outer surface of the circular block (26) is fixedly connected with several protrusions (27), which are distributed circumferentially on the outer surface of the circular block (26).

4. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 3, characterized in that: A magnetic ring (28) is fixedly connected to the side of the circular block (26) near the sliding rod (25), and the outer surface of the ring body (1) near the groove (21) is made of a material that can be attracted by a magnet.

5. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 4, characterized in that: The end of the round rod (24) away from the arc plate (22) is fixedly connected to a U-shaped rod (29), and the upper and lower ends of the U-shaped rod (29) slide on the upper and lower sides of the ring body (1), respectively.

6. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 5, characterized in that: A protective device (3) is provided on one side of the arc plate (22). The protective device (3) includes a protective plate (31), which is made of a metal material with a certain elasticity. The protective plate (31) has slots (32) at both ends.

7. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 6, characterized in that: The width of the middle part of the inner wall of the slot (32) is greater than the width of the outermost part of the inner wall of the slot (32).

8. The external reinforcing ring for the outer tank of a cryogenic pressure vessel according to claim 7, characterized in that: Two protrusions (33) are fixedly connected to one side of the protective plate (31), and the protrusions (33) are located on the surface of the protective plate (31) near the slot (32).

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