Anti-scouring device for pipe orifice of tubular cooler

Abstract

The utility model relates to an anti-scouring device for a pipe orifice of a tubular cooler, in particular to the anti-scouring device for the pipe orifice of the tubular cooler, which comprises a circular-tube-shaped protecting sleeve, the front end of the protecting sleeve is inserted into a cooling water inlet pipe of the tubular cooler, and the rear end of the protecting sleeve extends out of the cooling water inlet pipe. The inner wall, extending out of the cooling water inlet pipe, of the protective sleeve is an extending anti-abrasion edge; according to the utility model, the original worn area on the cooling water inlet pipe is transferred to the protective sleeve through the installation of the protective sleeve, the protective sleeve bears the scouring and friction of the cooling water, and the worn protective sleeve is directly detached and a new protective sleeve is reinstalled during maintenance along with the prolonging of the service time of the tubular cooler and the wear of the protective sleeve. The cooling water inlet pipe does not need to be repaired; the cooling water inlet pipe is simple in structure, convenient to machine, stable in connection, convenient to assemble and disassemble and convenient to use, prevents the cooling water inlet pipe from being abraded, and guarantees normal operation of the tubular cooler.

Description

Technical Field

[0001] This utility model relates to a device for preventing erosion at the inlet of a tubular cooler, specifically a device for preventing erosion at the inlet of a tubular cooler. Background Technology

[0002] Tubular coolers are frequently used in the cooling systems of large equipment in the industrial manufacturing sector. For example, condensers, low-pressure heaters, and hydrogen coolers of large generator sets all use tubular coolers. Due to factors such as cooling water quality and operating time, tubular coolers often leak. This can cause minor damage to grease emulsification equipment or, in severe cases, force the unit to shut down or even require boiler acid washing or large-scale tube replacement.

[0003] Routine inspections revealed that leaks were most frequent at the cooling water inlet pipe openings, especially when the cooling water quality was poor or contained a high amount of sand. The main cause was that the pipe openings or welds were eroded by the water flow or worn by mud and sand, leading to leaks. After repair, secondary leaks would occur shortly after operation, posing a significant risk to the safe operation of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a device to prevent scouring at the inlet of a tubular cooler. The protective tube moves the wear front at the inlet of the cooling water pipe forward and bears the scouring and friction of the cooling water.

[0005] To achieve the above-mentioned technical effects, the present invention provides a tube cooler inlet anti-erosion device including a protective sleeve, which is cylindrical in shape. The front end of the protective sleeve is inserted into the cooling water inlet pipe of the tube cooler, and the rear end of the protective sleeve extends out of the cooling water inlet pipe. The inner wall of the protective sleeve extending out of the cooling water inlet pipe is an extended anti-wear edge.

[0006] Furthermore, the outer diameter of the protective sleeve is 0.5 mm smaller than the inner diameter of the cooling water inlet pipe of the tubular cooler; a sealing groove is provided on the outer wall of the protective sleeve, and a sealing ring is connected in the sealing groove, with the sealing ring connected between the outer wall of the protective sleeve and the inner wall of the cooling water inlet pipe.

[0007] Furthermore, the outer wall of the protective sleeve is provided with a boss, the outer diameter of which is larger than the outer diameter of the cooling water inlet pipe, and the boss is attached to the end face of the cooling water inlet pipe.

[0008] Furthermore, the inner wall of the front end of the protective sleeve is provided with an inclination angle, and the inner diameter of the inclination angle at the front end of the protective sleeve is larger than the inner diameter of the protective sleeve.

[0009] Furthermore, the angle between the tilt angle and the inner wall of the protective sleeve is 10°-20°.

[0010] Furthermore, the protective sleeve is made of copper.

[0011] The beneficial effects of this utility model are as follows: By installing a protective sleeve, the wear area originally on the cooling water inlet pipe is transferred to the protective sleeve, which then bears the scouring and friction of the cooling water. As the tubular cooler is used for a long time, the protective sleeve will wear out. During maintenance, the worn protective sleeve can be directly removed and a new one installed, without the need to repair the cooling water inlet pipe. This utility model has a simple structure, is easy to process, has a stable connection, is convenient to install and remove, and is easy to use. It prevents wear on the cooling water inlet pipe and ensures the normal operation of the tubular cooler. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the usage state of this utility model;

[0014] Figure 3 A schematic diagram of the wear area at the opening of the cooling water inlet pipe when this utility model is not installed;

[0015] Figure 4 This is a schematic diagram of the wear area after the present invention has been installed.

[0016] In the diagram: 1. Protective tube; 101. Boss; 102. Sealing groove; 103. Inclined angle; 104. Extended anti-wear edge; 2. Sealing ring. Detailed Implementation

[0017] like Figures 1-2 As shown, the present invention provides a tube cooler inlet anti-erosion device including a protective sleeve 1, which is a round tube. The front end of the protective sleeve 1 is inserted into the cooling water inlet pipe of the tube cooler, and the rear end of the protective sleeve 1 extends out of the cooling water inlet pipe. The inner wall of the protective sleeve 1 extending out of the cooling water inlet pipe is an extended anti-wear edge 104.

[0018] like Figure 3 As shown, when this utility model is not installed, the inner wall of the cooling water inlet pipe is worn due to the scouring and friction of the cooling water, resulting in leakage. Since the cooling water inlet pipe is generally installed by welding, it is difficult to disassemble during maintenance. Therefore, the wear in this area is usually repaired by welding. However, since the scouring and friction of the cooling water is always present, the wear area will wear again after repair.

[0019] like Figure 4As shown, by installing the protective sleeve 1, the wear area on the original cooling water inlet pipe is transferred to the protective sleeve 1. The extended anti-wear edge 104 bears the scouring and friction of the cooling water. As the tubular cooler is used for a long time, the protective sleeve 1 will wear out. During maintenance, the worn protective sleeve 1 can be directly removed and a new protective sleeve 1 can be installed. There is no need to repair the cooling water inlet pipe. The installation and removal are simple, preventing wear on the cooling water inlet pipe and ensuring the normal operation of the tubular cooler.

[0020] The outer diameter of the protective sleeve 1 is 0.5 mm smaller than the inner diameter of the cooling water inlet pipe of the tubular cooler; a sealing groove 102 is provided on the outer wall of the protective sleeve 1, and a sealing ring 2 is connected in the sealing groove 102. The sealing ring 2 is connected between the outer wall of the protective sleeve 1 and the inner wall of the cooling water inlet pipe.

[0021] The outer diameter of the protective sleeve 1 is 0.5 mm smaller than the inner diameter of the cooling water inlet pipe of the tubular cooler to facilitate the installation of the protective sleeve 1. The sealing groove 102 and the sealing ring 2 ensure the sealing between the protective sleeve 1 and the cooling water inlet pipe.

[0022] Considering that the protective sleeve 1 is installed on the cooling water inlet pipe, it is necessary to prevent the protective sleeve 1 from being carried into the cooling water inlet pipe by the water flow. Therefore, this utility model provides a boss 101 on the outer wall of the protective sleeve 1. The outer diameter of the boss 101 is larger than the outer diameter of the cooling water inlet pipe, and the boss 101 is abutted against the end face of the cooling water inlet pipe.

[0023] The protrusion 101 is designed to prevent the protective sleeve 1 from being carried into the cooling water inlet pipe by the water flow, thus affecting the normal operation of the tubular cooler. On the other hand, it facilitates the installation and removal of the protective sleeve 1.

[0024] The inner wall of the front end of the protective sleeve 1 is provided with an inclination angle 103, and the inner diameter of the inclination angle 103 at the front end of the protective sleeve 1 is larger than the inner diameter of the protective sleeve 1; the angle between the inclination angle 103 and the inner wall of the protective sleeve 1 is 10°-20°.

[0025] The 103-degree inclination angle is set primarily to prevent the water flow from forming eddies and causing scouring.

[0026] The protective sleeve 1 is made of copper.

Claims

1. A device for preventing erosion at the inlet of a tubular cooler, characterized in that: The device includes a protective sleeve (1), which is a cylindrical tube. The front end of the protective sleeve (1) is inserted into the cooling water inlet pipe of the tubular cooler, and the rear end of the protective sleeve (1) extends out of the cooling water inlet pipe. The inner wall of the protective sleeve (1) extending out of the cooling water inlet pipe is an extended anti-wear edge (104). The outer diameter of the protective sleeve (1) is 0.5 mm smaller than the inner diameter of the cooling water inlet pipe of the tubular cooler. A sealing groove (102) is provided on the outer wall of the protective sleeve (1), and a sealing ring (2) is connected in the sealing groove (102). The sealing ring (2) is connected between the outer wall of the protective sleeve (1) and the inner wall of the cooling water inlet pipe. A boss (101) is provided on the outer wall of the protective sleeve (1). The outer diameter of the boss (101) is larger than the outer diameter of the cooling water inlet pipe, and the boss (101) is abutted against the end face of the cooling water inlet pipe. An inclination angle (103) is provided on the inner wall of the front end of the protective sleeve (1). The inner diameter of the inclination angle (103) at the front end of the protective sleeve (1) is larger than the inner diameter of the protective sleeve (1).

2. The anti-erosion device for the inlet of a tubular cooler according to claim 1, characterized in that: The angle between the tilt angle (103) and the inner wall of the protective sleeve (1) is 10°-20°.

3. A tube inlet anti-erosion device for a tubular cooler according to any one of claims 1-2, characterized in that: The protective sleeve (1) is made of copper.

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