Plug plugging device of air cooler channel

Abstract

The utility model belongs to the technical field of leakage treatment of air coolers, and relates to a screwed plug leaking stoppage device of an air cooler tube box, a heat exchange tube is installed on one side of the tube box, the heat exchange tube is communicated with an inner cavity of the tube box, and the screwed plug leaking stoppage device comprises an eyelet bolt, a blocking piece and a nut. The head part of the swing bolt extends into the inner cavity of the tube box through the screwed plug hole, and the tail part of the swing bolt extends out of the inner cavity of the tube box; the separation blade is movably connected to the head part of the swing bolt and is used for preventing a medium in the tube box from escaping; the nut is connected to the end, close to the tail, of the swing bolt. The head of the swing bolt extends into the inner cavity of the pipe box through the screwed plug hole, the pin hole in the head of the swing bolt serves as a rotating fulcrum, the angle of the blocking piece is adjusted in a rotating mode, the blocking piece is made to be tightly attached to the inner wall of the screwed plug hole, and plugging of the screwed plug hole is achieved. The plugging operation is simplified, the working efficiency is improved, meanwhile, it is guaranteed that the plugging device can accurately and stably plug the leaked screwed plug hole, and the sealing effect of the pipe box is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air cooler leakage treatment technology, specifically to a plugging device for air cooler tube boxes. Background Technology

[0002] The air cooler in methanol synthesis is one of the important pieces of equipment in methanol synthesis, responsible for cooling the synthesis gas produced in the synthesis tower and then condensing and separating the liquid phase. Finned heat exchange tubes are distributed on one side of the air cooler's tube box, and a plug is installed on the opposite side for cleaning the heat exchange tubes during maintenance.

[0003] There has been some research on plug sealing devices for air cooler tube boxes in the prior art. See patent document with application number 201110168713.5, which discloses a pressurized plug sealing technology for air cooler plugs. The technical solution involves installing a special clamp on the air cooler. After the clamp is firmly clamped, a sealed cavity is formed inside. The sealant is injected into the sealed cavity of the clamp to balance the internal and external pressure, thereby eliminating the leakage problem of the air cooler plug.

[0004] Therefore, it can be seen that as the sealant is injected, the internal and external pressures of the air cooler gradually balance, thereby eliminating the problem of leakage from the air cooler plug. However, during the sealant injection process, the clamping force of the fixture and the amount of sealant injected must be strictly controlled. If the control accuracy is incorrect, the leaking plug cannot be sealed, and the sealing effect cannot be guaranteed. Utility Model Content

[0005] To address the technical problem in the prior art that the clamping force of the fixture and the amount of sealant injected during the sealant injection process need to be strictly controlled, and that it is impossible to seal the leaking plug if the control accuracy is incorrect, this utility model provides a plug sealing device for air cooler tube boxes.

[0006] This utility model relates to a plug-and-leakage device for air cooler tube boxes. The head of the hinged bolt extends into the inner cavity of the tube box through the plug hole. Using the pin hole of the hinged bolt head as a fulcrum, the angle of the baffle is adjusted by rotation, so that the baffle is tightly attached to the inner wall of the plug hole, thus sealing the plug hole. This simplifies the plugging operation, improves work efficiency, and ensures that the plugging device accurately and firmly seals the leaking plug hole, guaranteeing the sealing effect of the tube box.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A plugging device for an air cooler tube box is disclosed. A heat exchange tube is installed on one side of the tube box and communicates with the inner cavity of the tube box. The plugging device includes a hinged bolt, a baffle plate, and a nut. The head of the hinged bolt extends into the inner cavity of the tube box through a plug hole, and the tail of the hinged bolt extends out of the inner cavity of the tube box. The baffle plate is movably connected to the head of the hinged bolt to prevent the medium inside the tube box from escaping. The nut is connected to the end of the hinged bolt near the tail and is fitted against the outer wall of the tube box.

[0009] In one specific implementation, the plugging device further includes a pressure cap; the pressure cap is sleeved on the hinge bolt and fits against the outer wall of the pipe box, and the nut fits against the side of the pressure cap away from the pipe box.

[0010] In one specific implementation, a flat washer is provided between the nut and the gland.

[0011] In one specific implementation, an O-ring is provided between the flat washer and the gland.

[0012] In one specific implementation, a sealing gasket is provided between the gland and the side wall of the pipe box.

[0013] In one specific implementation, a bevel is provided at the connection between the gland and the hinge bolt.

[0014] In one specific implementation, the area of ​​the blocking surface of the baffle is larger than the area of ​​the plug hole.

[0015] In one specific implementation, two baffles are provided; the two baffles are connected by a pivot pin, and both baffles are movably connected to the pivot pin, while the hinge bolt is fixedly connected to the pivot pin.

[0016] In one specific implementation, the transfer pin is arranged in a stepped shape.

[0017] In one specific implementation, the longitudinal cross-sectional shape of the baffle is rectangular.

[0018] In summary, this utility model has the following beneficial technical effects:

[0019] 1. This utility model relates to a plug-in leak-sealing device for an air cooler tube box. The head of the hinge bolt extends into the inner cavity of the tube box through the plug hole. Using the pin hole of the hinge bolt head as a fulcrum, the angle of the baffle is adjusted by rotating, so that the baffle is tightly attached to the inner wall of the plug hole, thereby sealing the plug hole. This simplifies the leak-sealing operation, improves work efficiency, and ensures that the leak-sealing device accurately and firmly seals the leaking plug hole, guaranteeing the sealing effect of the tube box.

[0020] 2. The plug-and-leakage device for the air cooler tube box of this utility model utilizes the pressure cap to compress the sealing end face of the sealing gasket, and at the same time sets a flat washer and an O-ring between the nut and the pressure cap to ensure that the medium leaks out from the gap between the pressure cap and the side wall of the tube box, thereby enhancing the sealing effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the air cooler tube box of this utility model. In the figure, point B is a schematic diagram of the installation of the plug, and point C is a schematic diagram of the installation of the plug sealing device after the plug is damaged.

[0022] Figure 2 This is a component assembly diagram of the plugging and leak-sealing device for the air cooler tube box of this utility model.

[0023] Figure 3 This is a simplified structural diagram of the hinge bolt of the plug-and-leakage device for the air cooler tube box of this utility model.

[0024] Figure 4 This is a schematic diagram of the plug-in device for sealing the air cooler tube box of this utility model being inserted into the plug hole.

[0025] Figure 5 This is a schematic diagram of the plug-in device for the air cooler tube box of this utility model, where the plug hole is locked. At this time, the baffle is attached to the end of the plug hole near the inner cavity of the tube box.

[0026] Explanation of reference numerals in the attached diagram: 1. Plug; 2. Sealing gasket; 3. Gland; 4. Flat washer; 5. Baffle; 6. Nut; 7. Swivel bolt; 8. O-ring; 9. Turning pin; 10. Bevel; 11. Tube box; 12. Heat exchange tube. Detailed Implementation

[0027] The technical solution of this utility model will be further explained and described below with reference to the accompanying drawings and embodiments, but this utility model is not limited to the embodiments described below.

[0028] Reference Figure 1 The air cooler in methanol synthesis is a crucial piece of equipment, responsible for cooling the medium produced in the synthesis tower, causing the liquid phase to condense and separate. Finned heat exchange tubes 12 are distributed on one side of the air cooler's tube box 11, while a plug 1 is located on the opposite side for cleaning the heat exchange tubes 12 during maintenance. In existing technology, sealant is injected into the sealing cavity of the clamp to balance the internal and external pressures, thereby eliminating leakage from the air cooler plug 1. However, the amount of sealant injected must be strictly controlled during the injection process. If the control accuracy is compromised, the leaking plug 1 cannot be sealed, making it difficult to ensure a leak-proof effect.

[0029] This utility model aims to provide a plugging device for an air cooler tube box. The head of the hinge bolt 7 extends into the inner cavity of the tube box 11 through the plug hole. Using the pin hole of the head of the hinge bolt 7 as a fulcrum, the angle of the baffle 5 is adjusted by rotating, so that the baffle 5 is tightly attached to the inner wall of the plug hole, thereby sealing the plug hole. This simplifies the plugging operation, improves work efficiency, and ensures that the plugging device accurately and firmly seals the leaking plug hole, thus guaranteeing the sealing effect of the tube box.

[0030] Example 1:

[0031] Reference Figures 1-5 A plugging device for an air cooler tube box is disclosed. A heat exchange tube 12 is installed on one side of the tube box 11, and the heat exchange tube 12 communicates with the inner cavity of the tube box 11. The plugging device includes a hinged bolt 7, a baffle 5, and a nut 6. The head of the hinged bolt 7 extends into the inner cavity of the tube box 11 through the plug hole, and the tail of the hinged bolt 7 extends out of the inner cavity of the tube box 11. The baffle 5 is movably connected to the head of the hinged bolt 7 to prevent the medium inside the tube box 11 from escaping. The nut 6 is connected to the end of the hinged bolt 7 near the tail, and the nut 6 is in contact with the outer wall of the tube box 11.

[0032] Furthermore, the area of ​​the blocking surface of the baffle 5 is larger than the area of ​​the plug hole to ensure that the baffle can completely cover the plug hole and achieve effective sealing.

[0033] Furthermore, two baffles 5 are provided; the two baffles 5 are connected by a pivot pin 9, and both baffles 5 are movably connected to the pivot pin 9, while the hinge bolt 7 is fixedly connected to the pivot pin 9. The pivot pin 9 is stepped, and the small end of the pivot pin 9 is spot-welded to the baffle 5, so that the tension of the hinge bolt 7 is evenly distributed inside the plug hole, enhancing the sealing effect.

[0034] Furthermore, the longitudinal cross-sectional shape of the baffle 5 can be rectangular, elliptical, polygonal, etc., and the shape of the baffle 5 can be selected according to the size and shape of the plug hole. Preferably, the shape of the baffle 5 is rectangular. Rectangular baffle 5 is easy to manufacture and process, and the cost is relatively low. At the same time, the rectangular edge can provide better sealing and stability, and is suitable for most common plug hole leakage situations.

[0035] Example 2:

[0036] Reference Figures 1-5In this embodiment, the plug-in leak-sealing device for the air cooler tube box, based on embodiment 1, further includes a pressure cap 3. The pressure cap 3 is fitted onto the hinge bolt 7 and adheres to the outer wall of the tube box 11. The nut 6 is fitted to the side of the pressure cap 3 away from the tube box 11 to fix and tighten the entire leak-sealing device, ensuring the stability and sealing of the leak-sealing device on the side wall of the tube box 11. Specifically, the pressure cap 3 is typically made of a high-strength, corrosion-resistant metal to withstand the pressure and corrosive environment during operation.

[0037] Furthermore, a flat washer 4 is provided between the nut 6 and the gland 3 to increase the contact area between them, distribute pressure, and prevent the nut 6 from loosening or being damaged. Simultaneously, the flat washer 4 provides a buffering effect, reducing stress concentration caused by tightening the nut. Specifically, the material of the flat washer 4 is usually matched to that of the nut 6 and the gland 3 to ensure a good fit and sealing effect.

[0038] Furthermore, an O-ring 8 is provided between the flat washer 4 and the gland 3 to further enhance the sealing effect. The O-ring 8 is usually made of elastic and corrosion-resistant rubber or plastic to adapt to different working environments and media.

[0039] Furthermore, a sealing gasket 2 is provided between the gland 3 and the side wall of the pipe box 11 to prevent the medium from leaking out from the gap between the gland 3 and the side wall of the pipe box 11. The material and shape of the sealing gasket 2 can be selected according to the characteristics of the medium and the working pressure.

[0040] Furthermore, a bevel 10 is provided at the connection between the gland 3 and the hinge bolt 7 to facilitate the installation and disassembly of the gland 3. At the same time, it reduces stress concentration to a certain extent and improves the reliability and service life of the entire sealing device.

[0041] The working principle of the plugging device for an air cooler tube box of this utility model is as follows: When in use, the plugging device is first disassembled into the smallest component unit, and then the baffle 5 is rotated so that the rotating baffle 5 enters the inner cavity of the tube box 11 through the plug hole; after the rotating baffle 5 passes through the plug hole, the baffle 5 is rotated again and the bolt is pulled outward so that the baffle 5 is tightly attached to the inner wall of the plug hole; then the sealing gasket 2, the pressure cap 3, the O-ring 8, the flat washer 4 and the nut 6 are installed in sequence, and the plug hole is plugged by tightening the nut 6.

[0042] The preferred embodiments of this utility model are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A kind of air cooler pipe box plug leakage device, the side of pipe box (11) is equipped with heat exchange pipe (12), and heat exchange pipe (12) is communicated with the inner chamber of pipe box (11), it is characterized by: The plug leakage stoppage device comprises a joint bolt (7), a baffle (5) and a nut (6); The head of the joint bolt (7) extends into the inner cavity of the tube box (11) through the plug hole, and the tail of the joint bolt (7) extends out of the inner cavity of the tube box (11); The baffle (5) is movably connected to the head of the joint bolt (7) and is used for blocking the medium in the tube box (11) from escaping; The nut (6) is connected to the end of the joint bolt (7) close to the tail, and the nut (6) is attached to the outer wall of the tube box (11).

2. The air cooler channel head gasket leakage device according to claim 1, characterized in that: The plug leakage stoppage device further comprises a gland (3); The gland (3) is sleeved on the joint bolt (7), and the gland (3) is attached to the outer wall of the tube box (11), and the nut (6) is attached to the side of the gland (3) away from the tube box (11).

3. The air cooler channel head gasket leakage device of claim 2, wherein: A flat washer (4) is arranged between the nut (6) and the gland (3).

4. The air cooler channel head gasket leakage device of claim 3, wherein: An O-ring (8) is arranged between the flat washer (4) and the gland (3).

5. The air cooler tube sheet patching device of claim 4, wherein: A sealing gasket (2) is arranged between the gland (3) and the side wall of the tube box (11).

6. The air cooler tube sheet patching device of claim 5, wherein: A bevel (10) is arranged at the connection between the gland (3) and the joint bolt (7).

7. The air cooler channel head gasket of any one of claims 1-6, wherein: The blocking surface of the baffle (5) has an area greater than that of the plug hole.

8. The air cooler channel gasket of claim 1, wherein: The baffle (5) is provided with two. The two baffles (5) are connected by a rotating pin (9), and the two baffles (5) are movably connected to the rotating pin (9), and the joint bolt (7) is fixedly connected to the rotating pin (9).

9. The air cooler tube sheet patching device of claim 8, wherein: The rotating pin (9) is arranged in a stepped manner.

10. The air cooler channel gasket of claim 1, wherein: The longitudinal section of the baffle (5) is rectangular.

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