High-pressure pipe fitting and connector for ship

Abstract

The utility model relates to the technical field of pipeline systems, in particular to a high-pressure pipe fitting and connector for ships, which comprises a pipe fitting main body and is characterized in that the pipe fitting main body comprises a base pipe, sleeves and a connecting layer, and the sleeves are arranged on the inner side and the outer side of the base pipe; the pipe fitting has the advantages that on one hand, the pipe fitting body achieves fastening of the first end flange and the second end flange of the elbow joint through the bolt, the root of the second end flange of the elbow joint is sleeved with the sealing ring, and external sealing of the connecting position of the first end flange and the second end flange of the elbow joint is achieved under extrusion fit of the sealing ring and the first flange; the outer conical opening communicated with the end of the pipe fitting main body is in extrusion fit with the inner conical opening of the elastic bushing embedded into the end of the elbow joint, so that the elastic bushing deforms, and internal sealing of the joint of the elastic bushing and the inner conical opening is achieved by extruding the sealing ring installed in the annular groove distributed in the axial direction of the outer wall of the elastic bushing. And through internal and external dual sealing of the joint of the pipe fitting main body and the elbow joint, the phenomenon of leakage at the joint is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline systems, in particular to a high-pressure pipe fitting and a joint for ships. Background Art

[0002] Existing high-pressure pipe fittings for ships are composed of a base pipe and a stainless pipe that is sleeved with the base pipe. There are a large number of bends in various types of common complex pipeline systems. If the pipeline is directly processed and the bends are formed integrally, not only will the production efficiency be low, but the pipeline will also be inconvenient to store and transport, and the cost will be high.

[0003] Therefore, people generally adopt the method of adding joints with a certain angle in the pipeline system to connect the pipelines to form a pipeline system. However, the existing pipeline joints are usually supported by metal or engineering plastics, which are inconvenient to process and manufacture, have high costs, and cannot adapt to the stable connection of pipelines of various materials, and often cause problems such as fluid leakage in the pipeline system. Utility Model Content

[0004] The purpose of the utility model is to provide a high-pressure pipe fitting and a joint for ships to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure pipe fitting for ships, comprising a pipe fitting body, wherein the pipe fitting body comprises a base pipe, a casing and a connecting layer, casings are arranged on the inner and outer sides of the base pipe, and the base pipe is made of carbon steel, and the casing is made of stainless steel, the interlayer between the base pipe and the casing is filled with a connecting layer, and the connecting layer tightly connects the base pipe and the casing into a whole, and the connecting layer is made of epoxy resin.

[0006] Preferably, both ends of the pipe body are fixedly connected with outer cones, and the diameter of the outer cones gradually decreases from the inside to the outside.

[0007] Preferably, flanges 1 are sleeved and fixed at both ends of the pipe body, and four mounting holes are provided on the circumference of flange 1.

[0008] A joint is installed on a high-pressure pipe fitting for a ship, comprising an elbow joint, both ends of which are opened with elastic bushings embedded therein, and the inner wall of the elastic bushing is provided with an inner cone opening matched with an outer cone opening.

[0009] Preferably, the outer wall of the elastic bushing is provided with a plurality of annular grooves distributed along the axial direction, and a sealing ring is embedded in the annular groove.

[0010] Preferably, flange 2 is sleeved and fixed on both ends of the elbow joint, and a sealing ring which is squeezed and matched with flange 1 is sleeved on the inner side of flange 2.

[0011] Preferably, four connecting holes are opened on the outer side of the second flange, and the connecting holes are fastened to four mounting holes around the first flange by bolts.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the utility model is in use, the pipe fitting body provided by the present application connects the base pipe and the sleeve through a connecting layer made of epoxy resin, so that the pipe body structure is tight and the formation of interlayer is avoided. In addition, the inner and outer sides of the carbon steel base pipe are provided with stainless steel sleeves, which effectively protect the pipe body.

[0014] 2. When the utility model is in use, on the one hand, the pipe body is fastened with the end flange 1 and the end flange 2 of the elbow joint by bolts, and a sealing ring is set at the root of the end flange 2 of the elbow joint to achieve external sealing of the connection between the two under the extrusion fit with flange 1, and on the other hand, the outer cone mouth connected to the end of the pipe body is extruded and fit with the inner cone mouth of the elastic bushing embedded in the end of the elbow joint, so that the elastic bushing is deformed, and the sealing ring installed in the annular groove distributed along the axial direction of the outer wall of the elastic bushing is squeezed to achieve the internal sealing of the connection between the two, and the internal and external double sealing of the connection between the pipe body and the elbow joint is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall combined structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the pipe fitting body of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the elbow joint of the utility model.

[0018] In the figure: 1. pipe fitting body; 101. base pipe; 102. casing; 103. connecting layer; 2. outer cone; 3. flange one; 4. mounting hole; 5. elbow joint; 6. elastic bushing; 7. inner cone; 8. ring groove; 9. sealing ring; 10. flange two; 11. sealing ring; 12. connecting hole. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 2 The utility model provides a technical solution: a high-pressure pipe fitting for ships, comprising a pipe fitting body 1, the pipe fitting body 1 comprising a base pipe 101, a casing 102 and a connecting layer 103, the casing 102 is arranged on the inner and outer sides of the base pipe 101, and the base pipe 101 is made of carbon steel, and the casing 102 is made of stainless steel, the interlayer between the base pipe 101 and the casing 102 is filled with the connecting layer 103, and the connecting layer 103 tightly connects the base pipe 101 and the casing 102 into a whole, and the connecting layer 103 is made of epoxy resin, the two ends of the pipe fitting body 1 are fixedly connected with an outer cone 2, and the diameter of the outer cone 2 gradually decreases from the inside to the outside, the two ends of the pipe fitting body 1 are sleeved and fixed with a flange 3, and the circumference of the flange 3 is provided with four mounting holes 4;

[0022] The specific operation is as follows: the pipe body 1 provided in the present application connects the base pipe 101 and the sleeve 102 through a connecting layer 103 made of epoxy resin, so that the pipe body structure is tight and the formation of interlayer is avoided. In addition, the inner and outer sides of the carbon steel base pipe 101 are provided with stainless steel sleeves 102, which effectively protect the pipe body.

[0023] Embodiment 2

[0024] See also Figure 1-Figure 3 The utility model provides a technical solution: a joint, which is installed on a high-pressure pipe fitting for a ship, including an elbow joint 5, the openings at both ends of the elbow joint 5 are embedded with elastic bushings 6, and the inner wall of the elastic bushing 6 is provided with an inner cone 7 matched with the outer cone 2, the outer wall of the elastic bushing 6 is provided with a plurality of annular grooves 8 distributed along the axial direction, and a sealing ring 9 is embedded in the annular groove 8, the two ends of the elbow joint 5 are sleeved and fixed with flange 2 10, and the inner side of the flange 2 10 is sleeved with a sealing ring 11 that is pressed and matched with flange 1 3, the outer side of the flange 2 10 is provided with four connecting holes 12, and the connecting holes 12 and the four mounting holes 4 around the flange 3 are fastened by bolts;

[0025] The specific operation is as follows: on the one hand, the pipe body 1 is fastened with the end flange 3 and the end flange 2 10 of the elbow joint 5 by bolts, and a sealing ring 11 is installed at the root of the end flange 2 10 of the elbow joint 5 to achieve external sealing of the connection between the two under the extrusion fit with the flange 3. On the other hand, the outer cone 2 connected to the end of the pipe body 1 is extruded and fit with the inner cone 7 of the elastic bushing 6 embedded in the end of the elbow joint 5, so that the elastic bushing 6 is deformed, and the sealing ring 9 installed in the annular groove 8 distributed axially on the outer wall of the elastic bushing 6 is squeezed to achieve the internal sealing of the connection between the two. By double sealing the inside and outside of the connection between the pipe body 1 and the elbow joint 5, leakage at the connection is avoided.

[0026] In actual use, the pipe fitting body 1 provided by the present application connects the base pipe 101 and the sleeve 102 through a connecting layer 103 made of epoxy resin, so that the pipe body structure is tight and the formation of interlayers is avoided. In addition, the inner and outer sides of the base pipe 101 made of carbon steel are provided with sleeves 102 made of stainless steel, which effectively protects the pipe body. On the one hand, the pipe fitting body 1 realizes the fastening of the end flange 13 and the end flange 2 10 of the elbow joint 5 by bolts, and the sealing ring 11 is set at the root of the end flange 2 10 of the elbow joint 5 to achieve the external sealing of the connection between the two under the extrusion fit with the flange 13. On the other hand, the outer cone 2 connected to the end of the pipe fitting body 1 is extruded and matched with the inner cone 7 of the elastic bushing 6 embedded in the end of the elbow joint 5, so that the elastic bushing 6 is deformed, and the sealing ring 9 installed in the annular groove 8 distributed along the axial direction on the outer wall of the elastic bushing 6 is squeezed to achieve the internal sealing of the connection between the two. By double sealing the inside and outside of the connection between the pipe fitting body 1 and the elbow joint 5, leakage at the connection is avoided.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure pipe fitting for a ship, comprising a pipe fitting body (1), characterized in that: The pipe fitting body (1) comprises a base pipe (101), a sleeve (102) and a connection layer (103); the sleeve (102) is arranged on the inner side and the outer side of the base pipe (101); the base pipe (101) is made of carbon steel, and the sleeve (102) is made of stainless steel; the interlayer between the base pipe (101) and the sleeve (102) is filled with the connection layer (103); the connection layer (103) tightly connects the base pipe (101) and the sleeve (102) into a whole; and the connection layer (103) is made of epoxy resin; the two ends of the pipe fitting body (1) are fixedly connected with an outer cone (2); and the diameter of the outer cone (2) gradually decreases from the inside to the outside; the two ends of the pipe fitting body (1) are sleeved and fixed with a flange 1 (3); and the flange 1 (3) is provided with four mounting holes (4) on its circumference; The invention comprises an elbow joint (5), wherein the openings at both ends of the elbow joint (5) are embedded with elastic bushings (6), and the inner wall of the elastic bushing (6) is provided with an inner cone (7) matched with the outer cone (2), the outer wall of the elastic bushing (6) is provided with a plurality of annular grooves (8) distributed along the axial direction, and a sealing ring (9) is embedded inside the annular groove (8), the two ends of the elbow joint (5) are sleeved and fixed with flange 2 (10), and the inner side of flange 2 (10) is sleeved with a sealing ring (11) which is pressed and matched with flange 1 (3), and the outer side of flange 2 (10) is provided with four connecting holes (12), and the connecting holes (12) are fastened to the four mounting holes (4) around the circumference of flange 1 (3) by bolts.

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