Ocean engineering pressure pipe anti-corrosion connector

Abstract

The utility model provides an ocean engineering pressure pipe anticorrosion joint, relates to ocean engineering field, include: outer joint ring block and pressure pipe, outer joint ring block inner side surface screw joint is tightly pressed with pressure pipe, outer joint ring block inner side ring surface is connected with centripetal pressure plate through spring, the inner side surface of centripetal pressure plate clings to moistureproof ring plate, and the pressure pipe is tightly pressed with the moistureproof ring plate. A drying agent storage cavity is formed in the inner side of the damp-proof ring plate, ventilation net plates are arranged on the inner ring face and the side face of the damp-proof ring plate, a sealing pressing strip is bonded to the side face of the damp-proof ring plate, and the damp-proof ring plate and the sealing pressing strip are symmetrically attached to the pipe face of the pressure pipe. The problem that in the prior art, a threaded rod is prone to loosening due to the influence of external force factors outside the ocean, so that a pressure pipe connector is not tightly sealed and is corroded by moisture is solved.

Description

Technical Field

[0001] The utility model relates to the field of marine engineering, in particular to an anti-corrosion joint for a marine engineering pressure pipe. Background Art

[0002] In current marine engineering, pressure pipes are placed in the ocean to transport chemicals and other substances. After searching, the prior art records that "the anti-corrosion component of the submarine tunnel pipe joint is provided with a protective mechanism. During use, the two ends of the pipe are placed through the tapered holes in the middle of the movable plates on both sides, and then the threaded rod is rotated by the handle until the movable plate can no longer move. At this time, the pipe joint is sealed under the action of the sealing strip and the sealing block. The protective mechanism seals the pipe joint to avoid the humid air in the submarine tunnel from contacting the pipe joint, and prevents the corrosion of the joint due to the influence of humid air, thereby improving the service life of the joint and increasing the practicality of the component." However, in the prior art, the threaded rod is easily loosened by the external force factors outside the ocean, resulting in poor sealing and wet corrosion at the pressure pipe joint. Utility Model Content

[0003] In order to overcome the defects of the prior art, an anti-corrosion joint for marine engineering pressure pipes is provided to solve the problem that the threaded rods in the prior art are easily loosened by external forces outside the ocean, resulting in poor sealing and wet corrosion at the pressure pipe joints.

[0004] To achieve the above object, an anti-corrosion joint for pressure pipes in marine engineering is provided, comprising: an outer joint ring block and a pressure pipe, wherein the inner side of the outer joint ring block is screwed and pressed with the pressure pipe.

[0005] The inner ring surface of the external joint ring block is connected to a centripetal pressure plate through a spring, the inner side surface of the centripetal pressure plate is tightly attached to a moisture-proof ring plate, a desiccant storage cavity is provided on the inner side of the moisture-proof ring plate, a ventilation mesh plate is provided on the inner ring surface and side surface of the moisture-proof ring plate, a sealing strip is bonded to the side surface of the moisture-proof ring plate, and the moisture-proof ring plate and the sealing strip are symmetrically attached to the surface of the pressure pipe.

[0006] Furthermore, the outer joint ring block is symmetrically screwed on the outer surfaces of the two groups of pressure pipes, and a clamping block is welded on the inner ring surface of the outer joint ring block.

[0007] Furthermore, the outer joint ring block is clamped with the inner joint ring block via a clamping block, and the left and right sides of the inner joint ring block are fixedly connected with the pressure pipe via fastening bolts.

[0008] Furthermore, a moisture-proof ring plate and a sealing strip are distributed between the outer joint ring block and the inner joint ring block, and a centripetal pressure plate is pressed against the outer ring surface end of the moisture-proof ring plate.

[0009] Furthermore, a positioning block is welded on the side of the moisture-proof ring plate; and the positioning block is plugged into the inner side wall of the external joint ring block, and the desiccant storage cavity is filled with silica gel desiccant particles.

[0010] Furthermore, the sealing strip is located on a side close to the inner joint ring block, and springs are connected to the outer side of the centripetal pressure plate in an annular distribution.

[0011] Furthermore, the moisture-proof ring plate, the desiccant storage cavity, the ventilation mesh plate and the sealing strip constitute a dry and anti-corrosion structure of the inner cavity of the external joint ring block.

[0012] The beneficial effect of the utility model is that the marine engineering pressure pipe anti-corrosion joint of the utility model utilizes a centripetal pressure plate to press the moisture-proof ring plate and the sealing strip tightly together at the distance between the outer joint ring block and the inner joint ring block, and absorbs the air inside the outer joint ring block and the infiltrated water vapor through the desiccant stored in the moisture-proof ring plate cavity, preventing the water vapor from contacting the metal pipe joint to cause oxidative corrosion, thereby effectively preventing the pressure pipe joint from being corroded and damaged by the water vapor evaporated from the ocean, ensuring that the pressure pipe joint is in a dry space, reducing the corrosion of humidity to the joint, extending the service life of the anti-corrosion coating on the surface of the pipe joint, and improving the durability of the anti-corrosion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of an anti-corrosion joint for a marine engineering pressure pipe according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the side cross-sectional structure of the anti-corrosion joint according to an embodiment of the utility model.

[0015] Figure 3 For the utility model embodiment Figure 1 Schematic diagram of the enlarged structure at point A.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the moisture-proof ring plate of an embodiment of the utility model.

[0017] In the figure: 1, external joint ring block; 11, internal joint ring block; 12, fastening bolts; 13, clamping block; 2, pressure pipe; 3, centripetal pressure plate; 31, spring; 4, moisture-proof ring plate; 41, desiccant storage chamber; 42, ventilation mesh plate; 43, positioning block; 5, sealing strip. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides an anti-corrosion joint for a pressure pipe in an offshore engineering project, comprising: an outer joint ring block 1 and a pressure pipe 2, wherein the inner side of the outer joint ring block 1 is screwed and pressed with the pressure pipe 2.

[0019] The inner ring surface of the external joint ring block 1 is connected to the centripetal pressure plate 3 through a spring 31, the inner side of the centripetal pressure plate 3 is tightly attached to the moisture-proof ring plate 4, the inner side of the moisture-proof ring plate 4 is provided with a desiccant storage cavity 41, the inner ring surface and side of the moisture-proof ring plate 4 are provided with a ventilation mesh plate 42, the side of the moisture-proof ring plate 4 is bonded with a sealing strip 5, and the moisture-proof ring plate 4 and the sealing strip 5 are symmetrically attached to the surface of the pressure pipe 2.

[0020] First, the inner joint ring block 11 is screwed and fixed to the two groups of pressure pipes 2, and then the moisture-proof ring plate 4 and the sealing strip 5 are inserted into the inner side of the outer joint ring block 1, so that the centripetal pressure plate 3 connected to the inner side of the outer joint ring block 1 pushes the moisture-proof ring plate 4 and the sealing strip 5 to fit tightly against the surface of the pressure pipe 2, and then the inner joint ring block 11 is screwed and fixed to the outer surface of the two groups of pressure pipes 2, and the desiccant stored in the cavity of the moisture-proof ring plate 4 absorbs the air inside the outer joint ring block 1 and the infiltrated water vapor, preventing the water vapor from contacting the metal pipe joint to cause oxidation corrosion, ensuring that the pressure pipe joint is in a dry space, reducing the corrosion of humidity to the joint, extending the service life of the anti-corrosion coating on the surface of the pipe joint, and improving the durability of the anti-corrosion joint.

[0021] In this embodiment, the outer joint ring block 1 is symmetrically screwed on the outer surfaces of the two groups of pressure pipes 2, and a clamping block 13 is welded on the inner ring surface of the outer joint ring block 1. The outer joint ring block 1 is clamped with the inner joint ring block 11 through the clamping block 13, and the left and right sides of the inner joint ring block 11 are fixedly connected with the pressure pipe 2 through the fastening bolts 12.

[0022] As a preferred embodiment, the outer joint ring block 1 and the inner joint ring block 11 serve as inner and outer joints of two groups of pressure pipes 2, conveniently and firmly connecting the two groups of pressure pipes 2, reducing the degree of corrosion at the connection between the inner joint ring block 11 and the pressure pipe 2, and preventing the leakage of substances transported inside the pressure pipe 2 from polluting the marine environment.

[0023] In this embodiment, a moisture-proof ring plate 4 and a sealing strip 5 are distributed between the outer joint ring block 1 and the inner joint ring block 11, and a centripetal pressure plate 3 is pressed against the outer ring surface end of the moisture-proof ring plate 4. The sealing strip 5 is located on the side close to the inner joint ring block 11, and a spring 31 is distributed in an annular manner on the outer side of the centripetal pressure plate 3.

[0024] As a preferred embodiment, the moisture-proof ring plate 4 and the sealing strip 5 serve as moisture-proof treatment between the outer joint ring block 1 and the inner joint ring block 11, preventing water vapor from penetrating into the connection between the inner joint ring block 11 and the pressure pipe 2, thereby ensuring that the inner joint ring block 11 and the pressure pipe 2 are tightly and firmly connected.

[0025] In this embodiment, a positioning block 43 is welded to the side of the moisture-proof ring plate 4; and the positioning block 43 is plugged into the inner wall of the outer joint ring block 1, and the desiccant storage cavity 41 is filled with silica gel desiccant particles.

[0026] As a preferred embodiment, the moisture-proof ring plate 4 is plugged and fitted with the outer joint ring block 1 through the positioning block 43, thereby limiting the movement direction of the moisture-proof ring plate 4. The silica gel desiccant particles in the desiccant storage cavity 41 absorb the water vapor in the inner cavity of the outer joint ring block 1 through the ventilation mesh plate 42, so as to prevent the water vapor evaporated from the ocean from penetrating into the cavity to corrode and damage the inner joint ring block 11 inside the pressure pipe.

[0027] In this embodiment, the moisture-proof ring plate 4 , the desiccant storage cavity 41 , the ventilation mesh plate 42 and the sealing strip 5 constitute a dry and corrosion-resistant structure of the inner cavity of the external joint ring block 1 .

[0028] As a preferred embodiment, the dry and anti-corrosion structure of the inner cavity of the external joint ring block 1 is convenient for preventing water vapor from coming into contact with the metal pipe joint to cause oxidative corrosion, ensuring that the pressure pipe joint is in a dry space, reducing the corrosion of humidity to the joint, extending the service life of the anti-corrosion coating on the surface of the pipe joint, and improving the durability of the anti-corrosion joint.

[0029] The marine engineering pressure pipe anti-corrosion joint of the utility model can effectively solve the problem in the prior art that the threaded rod is easily loosened by external forces outside the ocean, resulting in poor sealing and wet corrosion at the pressure pipe joint. It is convenient to effectively prevent the pressure pipe joint from being corroded and damaged by water vapor evaporated from the ocean, ensure that the pressure pipe joint is in a dry space, reduce the corrosion of humidity to the joint, extend the service life of the anti-corrosion coating on the surface of the pipeline joint, and improve the durability of the anti-corrosion joint. It is suitable for marine engineering pressure pipe anti-corrosion joints.

Claims

1. An anti-corrosion joint for a marine engineering pressure pipe, comprising: An external joint ring block (1) and a pressure pipe (2), wherein the inner side of the external joint ring block (1) is screwed and pressed with the pressure pipe (2), and is characterized in that: The inner ring surface of the external joint ring block (1) is connected to a centripetal pressure plate (3) via a spring (31); the inner side surface of the centripetal pressure plate (3) is tightly attached to a moisture-proof ring plate (4); a desiccant storage cavity (41) is provided on the inner side of the moisture-proof ring plate (4); a ventilation mesh plate (42) is provided on the inner ring surface and the side surface of the moisture-proof ring plate (4); a sealing strip (5) is bonded to the side surface of the moisture-proof ring plate (4); and the moisture-proof ring plate (4) and the sealing strip (5) are symmetrically attached to the pipe surface of the pressure pipe (2).

2. The anti-corrosion joint for pressure pipe in marine engineering according to claim 1, characterized in that: The outer joint ring block (1) is symmetrically screwed onto the outer surfaces of the two groups of pressure pipes (2) in an up-and-down manner, and a clamping block (13) is welded to the inner ring surface of the outer joint ring block (1).

3. The anti-corrosion joint for pressure pipe in marine engineering according to claim 2, characterized in that: The outer joint ring block (1) is clamped with the inner joint ring block (11) via a clamping block (13), and the left and right sides of the inner joint ring block (11) are fixedly connected with the pressure pipe (2) via fastening bolts (12).

4. The anti-corrosion joint for pressure pipe in marine engineering according to claim 3, characterized in that: A moisture-proof ring plate (4) and a sealing strip (5) are distributed between the outer joint ring block (1) and the inner joint ring block (11), and a centripetal pressure plate (3) is pressed against the outer ring surface end of the moisture-proof ring plate (4).

5. The anti-corrosion joint for pressure pipe in marine engineering according to claim 1, characterized in that: A positioning block (43) is welded to the side of the moisture-proof ring plate (4); the positioning block (43) is plugged into the inner wall of the external joint ring block (1); and the desiccant storage cavity (41) is filled with silica gel desiccant particles.

6. The anti-corrosion joint for pressure pipe in marine engineering according to claim 1, characterized in that: The sealing strip (5) is located on a side close to the inner joint ring block (11), and springs (31) are connected in an annular manner on the outer side of the centripetal pressure plate (3).

7. The anti-corrosion joint for pressure pipe in marine engineering according to claim 1, characterized in that: The moisture-proof ring plate (4), the desiccant storage cavity (41), the ventilation mesh plate (42) and the sealing strip (5) constitute a dry and corrosion-resistant structure of the inner cavity of the external joint ring block (1).

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