Compact air cooler tube sheet sealing structure

Abstract

The utility model relates to mechanical engineering technical field discloses a compact air cooler pipe box sealing structure, including pipe box main part, air cooler pipeline, air cooler pipeline fixed mounting is in the left and right two sides inner wall of pipe box main part, be provided with sealing mechanism on the air cooler pipeline, be provided with auxiliary mechanism on the sealing mechanism, the sealing mechanism includes recess, the recess is established in the top inner wall of pipe box main part, the top inner wall of recess is connected with sealing ring nest and is clamped, the top outer wall of sealing ring nest is fixedly connected with the closing plate, the left and right ends fixed connection of air cooler pipeline have arc contraction cover, the lateral outer wall of air cooler pipeline is provided with screw groove. In the utility model, recess is established in the top inner wall of pipe box main part, sealing ring nest is clamped in recess, effectively reduces the contact area of sealing ring nest and pipe box internal air, reduces the corrosion speed, prolongs the service life of sealing ring nest.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a compact air cooler tube box sealing structure. Background Technology

[0002] Air cooler tube boxes are widely used in the petrochemical industry, with a large number employing the plug-type tube box structure. A plug-type air cooler includes components such as inlet and outlet pipes, plug plates, plugs, top plate, bottom plate, end plate, tube sheet, heat exchange tubes, and heat dissipation fins. Safety accidents such as fires caused by leaks in plug-type air coolers occur frequently, resulting in significant economic losses for enterprises.

[0003] Depending on factors such as fluid properties, temperature, and pressure, the tube box of an air cooler can be made of materials such as carbon steel, stainless steel, or copper. For example, in high-pressure, high-temperature, and corrosive environments, stainless steel or alloy steel may be selected. The inlet pipe is connected to the front tube box, and the process medium enters the tube box through the inlet pipe. The tube box then distributes the medium to each finned tube, where heat exchange is completed before it flows out through the outlet pipe. The tube box plays a role in uniformly distributing the fluid and collecting the fluid after heat exchange, ensuring that the heat exchange process of the air cooler can proceed efficiently and stably.

[0004] The air cooler tube box has the following defects: when the cooling medium is highly corrosive, corrosion will occur in the gaps around the box. Also, due to the small operating space of the tube box, the welding quality of the butt joints is easily corroded and leaked under the action of corrosive medium. Therefore, a compact air cooler tube box sealing structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a compact air cooler tube box sealing structure, which aims to improve the welding quality of the butt joint in the prior art. Under the action of corrosive media, the defective location of the weld joint is prone to corrosion leakage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a compact air cooler tube box sealing structure, comprising a tube box body and air cooler pipes, wherein the air cooler pipes are fixedly installed on the inner walls of the left and right sides of the tube box body, a sealing mechanism is provided on the air cooler pipes, and an auxiliary mechanism is provided on the sealing mechanism. The sealing mechanism includes a groove, which is formed on the top inner wall of the tube box body. A sealing ring is snapped into the top inner wall of the groove, and a closing plate is fixedly connected to the top outer wall of the sealing ring. Arc-shaped shrink sleeves are fixedly connected to the left and right ends of the air cooler pipes. A threaded groove is formed on the side outer wall of the air cooler pipes, and a polygonal ring is threadedly connected to the side outer wall of the threaded groove. The inner wall of the inner ring of the arc-shaped shrink sleeve contacts a connecting pipe.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a pointing mark, which is opened on the front inner wall of the polygonal ring frame, and a threaded hole is opened on the top inner wall of the closing plate, and a threaded pin is threadedly connected to the inner wall of the inner ring of the threaded hole.

[0008] As a further description of the above technical solution: the outer diameter of the closing plate is adapted to the outer diameter of the pipe box body, and the closing plate contacts the top outer wall of the pipe box body.

[0009] As a further description of the above technical solution: the inner side wall of the arc-shaped shrink sleeve is provided with an expansion joint, and the polygonal ring frame contacts the outer side wall of the arc-shaped shrink sleeve.

[0010] As a further description of the above technical solution: the inner side wall of the polygonal ring frame and the outer side wall of the arc-shaped shrink sleeve are both fixedly connected with wear-resistant pads.

[0011] As a further description of the above technical solution: the front outer wall of the directional marker is fixedly connected with a display coating.

[0012] As a further description of the above technical solution: the threaded hole penetrates the top inner wall of the main body of the pipe box, and a silicone sleeve is fixedly connected to the top outer wall of the threaded nail.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by creating a groove on the inner wall of the top of the pipe box body and fitting the sealing ring into the groove, the contact area between the sealing ring and the air inside the pipe box is effectively reduced, the corrosion rate is lowered, and the service life of the sealing ring is extended. Simultaneously, the closing plate is adapted to and in close contact with the outer diameter of the pipe box body, further eliminating sealing dead angles and improving the sealing effect at the top of the pipe box. At the pipe connection point, the arc-shaped shrink sleeve, through its own elasticity and the compression of the polygonal ring under the action of the threaded structure, can form a stable clamp on the connecting pipe, avoiding the corrosion and leakage problems easily caused by traditional welding methods. Furthermore, the wear-resistant pads on the outer wall of the polygonal ring and the arc-shaped shrink sleeve can reduce frictional loss, further ensuring the long-term stable use of the overall sealing structure.

[0015] 2. In this utility model, the installation and rotation direction of the polygonal ring frame are clearly indicated by the directional markings, and the visibility is enhanced by the display coating, which makes it easy for operators to quickly and accurately complete the installation of the polygonal ring frame and improves the installation efficiency. In the subsequent maintenance process, it is only necessary to rotate the threaded nail to separate it from the threaded hole through the pipe box body, and then lift the closing plate to separate it from the pipe box body. There is no need for complicated disassembly procedures, which makes it convenient for operators to inspect and maintain the components in the narrow space inside the pipe box. At the same time, the silicone sleeve on the top of the threaded nail increases the operating friction, making the disassembly and assembly process more labor-saving and convenient. Attached Figure Description

[0016] Figure 1 This is a schematic front view of the overall structure of a compact air cooler tube box sealing structure proposed in this utility model.

[0017] Figure 2 This is a split schematic diagram of a compact air cooler tube box sealing structure proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing mechanism of a compact air cooler tube box sealing structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the auxiliary mechanism of a compact air cooler tube box sealing structure proposed in this utility model.

[0020] Legend:

[0021] 1. Tube box body; 2. Air cooler piping; 3. Sealing mechanism; 31. Groove; 32. Sealing ring; 33. Closing plate; 35. Arc-shaped shrink sleeve; 36. Threaded groove; 37. Polygonal ring frame; 38. Connecting pipe; 4. Auxiliary mechanism; 41. Indicator mark; 42. Threaded hole; 43. Threaded pin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3This utility model provides an embodiment of a compact air cooler tube box sealing structure, including a tube box body 1 and air cooler pipes 2. The air cooler pipes 2 are fixedly installed on the inner walls of the left and right sides of the tube box body 1. A sealing mechanism 3 is provided on the air cooler pipes 2, and an auxiliary mechanism 4 is provided on the sealing mechanism 3. The sealing mechanism 3 includes a groove 31, which provides an installation position for a sealing ring 32, allowing it to be stably fixed on the tube box body 1. The groove 31 is formed on the top inner wall of the tube box body 1, and the sealing ring 32 is engaged with the top inner wall of the groove 31. The snap-fit ​​with the groove 31 can effectively enhance the sealing of the top of the pipe box body 1 and prevent fluid leakage from the top gap. The top outer wall of the sealing ring 32 is fixedly connected to the closing plate 33. The left and right ends of the air cooler pipe 2 are fixedly connected to the arc-shaped shrink sleeve 35. The side outer wall of the air cooler pipe 2 is provided with a threaded groove 36. The threaded groove 36 provides the basis for the threaded connection of the polygonal ring frame 37, so that the polygonal ring frame 37 can move in position by rotation. The side outer wall of the threaded groove 36 is threadedly connected to the polygonal ring frame 37. The inner wall of the inner ring of the arc-shaped shrink sleeve 35 contacts the connecting pipe 38.

[0024] Reference Figures 2-4 The outer diameter of the closing plate 33 is matched with the outer diameter of the pipe box body 1. This size design ensures that the closing plate 33 can completely cover the top of the pipe box body 1, avoiding dead corners in sealing. The closing plate 33 contacts the top outer wall of the pipe box body 1. The inner side wall of the arc-shaped shrink sleeve 35 is provided with an expansion joint. The expansion joint gives the arc-shaped shrink sleeve 35 better shrinkage performance, which facilitates deformation under the compression of the polygonal ring frame 37 to adapt to the specifications of the connecting pipe 38. The polygonal ring frame 37 contacts the outer side wall of the arc-shaped shrink sleeve 35. Wear-resistant pads are fixedly connected to both the inner side wall of the polygonal ring frame 37 and the outer side wall of the arc-shaped shrink sleeve 35. The wear-resistant pads can reduce the frictional wear between the polygonal ring frame 37 and the arc-shaped shrink sleeve 35 and extend the service life of both.

[0025] Reference Figures 3-4 The auxiliary mechanism 4 includes a pointing mark 41, which is located on the inner front wall of the polygonal ring frame 37. The pointing mark 41 is used to indicate the installation and rotation direction of the polygonal ring frame 37, making it convenient for operators to perform installation operations quickly and accurately. The inner top wall of the closing plate 33 is provided with a threaded hole 42, which provides an installation channel for the threaded nail 43, allowing the threaded nail 43 to fix the closing plate 33 to the pipe box body 1. The inner ring of the threaded hole 42 is threaded with the threaded nail 43. The outer front wall of the pointing mark 41 is fixedly connected with a display coating, which enhances the visibility of the pointing mark 41, making it easier for operators to observe the mark. The threaded hole 42 penetrates the inner top wall of the pipe box body 1. The outer top wall of the threaded nail 43 is fixedly connected with a silicone sleeve, which increases the friction when the operator turns the threaded nail 43, making the operation convenient.

[0026] Working principle: By inserting the connecting pipes 38 of different specifications into the arc-shaped shrink sleeve 35, and then twisting the polygonal ring frame 37 under the action of the threaded groove 36, it approaches the arc-shaped shrink sleeve 35 and squeezes it inward, so that the arc-shaped shrink sleeve 35 clamps and fixes the outside of the connecting pipe 38, eliminating the need for traditional welding that causes corrosion and leakage. At the same time, the sealing ring 32 is inserted into the groove 31, reducing the amount of air exposed between the sealing ring 32 and the main body of the pipe box 1, thus accelerating the corrosion of the sealing ring 32 and extending its service life. In addition, when maintenance is required in the future, the threaded nail 43 is rotated to separate from the threaded hole 42, and then the closing plate 33 is lifted to separate from the main body of the pipe box 1, which facilitates convenient maintenance of the internal narrow space components.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compact air cooler tube box sealing structure, comprising a tube box body (1) and air cooler pipes (2), characterized in that: The air cooler pipe (2) is fixedly installed on the inner walls of the left and right sides of the pipe box body (1). A sealing mechanism (3) is provided on the air cooler pipe (2), and an auxiliary mechanism (4) is provided on the sealing mechanism (3). The sealing mechanism (3) includes a groove (31), which is opened on the top inner wall of the tube box body (1). A sealing ring (32) is snapped into the top inner wall of the groove (31). A closing plate (33) is fixedly connected to the top outer wall of the sealing ring (32). Arc-shaped shrink sleeves (35) are fixedly connected to the left and right ends of the air cooler pipe (2). A threaded groove (36) is opened on the side outer wall of the air cooler pipe (2). A polygonal ring frame (37) is threadedly connected to the side outer wall of the threaded groove (36). The inner wall of the inner ring of the arc-shaped shrink sleeve (35) contacts the connecting pipe (38).

2. The compact air cooler tube box sealing structure according to claim 1, characterized in that: The auxiliary mechanism (4) includes a pointing mark (41), which is opened on the front inner wall of the polygonal ring frame (37). The top inner wall of the closing plate (33) is provided with a threaded hole (42), and the inner wall of the inner ring of the threaded hole (42) is threaded with a threaded nail (43).

3. The compact air cooler tube box sealing structure according to claim 1, characterized in that: The outer diameter of the closing plate (33) is adapted to the outer diameter of the pipe box body (1), and the closing plate (33) contacts the top outer wall of the pipe box body (1).

4. The compact air cooler tube box sealing structure according to claim 1, characterized in that: The inner side wall of the arc-shaped shrink sleeve (35) is provided with an expansion joint, and the polygonal ring frame (37) contacts the outer side wall of the arc-shaped shrink sleeve (35).

5. The compact air cooler tube box sealing structure according to claim 1, characterized in that: Wear-resistant pads are fixedly connected to the inner side wall of the polygonal ring frame (37) and the outer side wall of the arc-shaped shrink sleeve (35).

6. A compact air cooler tube box sealing structure according to claim 2, characterized in that: The front outer wall of the directional marker (41) is fixedly connected with a display coating.

7. A compact air cooler tube box sealing structure according to claim 2, characterized in that: The threaded hole (42) penetrates the top inner wall of the main body (1) of the pipe box, and a silicone sleeve is fixedly connected to the top outer wall of the threaded nail (43).

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