CN218408882U

CN218408882U - Double-wall pipe supports shock attenuation pipe clamp device

Info

Publication number: CN218408882U
Application number: CN202222856966.8U
Authority: CN
Inventors: 董方健; 王进锋; 李彦坤; 运起光; 王发英; 姜传宝
Original assignee: China Shipbuilding Dalian Shipyard Industry Development Co ltd
Current assignee: China Shipbuilding Dalian Shipyard Industry Development Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-31
Anticipated expiration: 2032-10-27

Abstract

The invention discloses a double-wall pipe supporting and damping pipe clamp device which comprises an upper pipe clamp (1) and a lower pipe clamp (2), wherein the half part of the upper pipe clamp (1) encircles the outer wall of an inner pipe (3) of the double-wall pipe, two ends of the upper pipe clamp (1) are outwards turned and folded to form a connecting plate, and a plurality of pipe clamp supporting plates (4) which are bent upwards are arranged on the side surface of the upper pipe clamp (1) at intervals. The invention has the advantages of multiple supporting points, uniform stress, large attaching and attaching area, good fastening performance, suitability for pipelines in different directions, good inner pipe supporting and damping effects and convenient installation and disassembly. The safety and the stability of the fixed fuel supply system pipeline are effectively guaranteed.

Description

Double-wall pipe supports shock attenuation pipe clamp device

Technical Field

The invention relates to the technical field of auxiliary supporting devices for double-wall pipes of a marine clean gas fuel gas supply system, in particular to a damping pipe clamping device for supporting double-wall pipes.

Background

In the long run, with the increasing of the international marine environment protection and the continuous emergence of new technology and new mode, the novel green, safe and clean energy (natural gas/ethane/methanol/liquefied petroleum gas) and the low price and high efficiency thereof are more and more concerned and favored by the shipping market, the trend of replacing the existing marine fuel oil as the main fuel for the propulsion of ships is shown, and a new way is opened up for the sustainable development of the shipping. Double-walled tubes are a way of supplying engine fuel to a dedicated fuel supply system and are widely used. The double-wall pipeline comprises inner tube and outer tube, and marine fuel gas is carried to the inner tube, and the annular space of inner tube and outer tube adopts the negative pressure ventilation, realizes that the air in the annular space flows, in case the inner tube gas is leaked, the gas of leaking will be discharged to safe region by ventilation system suction and outer row, avoids the danger of explosion. Therefore, the fixation of the inner pipe is very important, and the inner pipe not only meets the explosion-proof requirement, but also has certain supporting strength and better shock absorption performance. At present, the support mode that an upper pipe clamp and a lower pipe clamp are transversely attached to the inner wall surface of an outer pipe is adopted in many modes. The method has the problems of limited load bearing strength, deformation after installation, unsatisfactory fixing performance, easy looseness of the inner pipe and the like.

Disclosure of Invention

The invention aims to solve the problems that no good support, fixation and shock absorption are realized between an inner pipe and an outer pipe.

In order to achieve the purpose, the invention provides a double-wall pipe supporting and damping pipe clamp device which comprises an upper pipe clamp and a lower pipe clamp, wherein the half part of the upper pipe clamp encircles the outer wall of an inner pipe of the double-wall pipe, two ends of the upper pipe clamp are outwards turned to form connecting plates, and a plurality of pipe clamp supporting plates which are bent upwards are arranged on the side surface of the upper pipe clamp at intervals. The lower pipe clamp and the upper pipe clamp are identical in structure, and the half parts of the lower pipe clamp and the upper pipe clamp are encircled on the opposite sides of the upper pipe clamp on the outer wall of the inner pipe. The connecting plate of the upper pipe clamp is detachably and fixedly connected with the connecting plate of the lower pipe clamp. The front end of the pipe clamp supporting sheet extends along the direction of the pipeline and is supported on the inner wall of the outer pipe of the double-wall pipe.

Preferably, a buffer gap is left between the connecting plate of the upper pipe clamp and the connecting plate of the lower pipe clamp which are positioned on the same side.

Preferably, the contact surface of the pipe clamp supporting sheet and the inner wall of the outer pipe is an arc surface which is attached to each other.

Preferably, each pipe clamp support plate is sleeved with a protective sleeve.

Preferably, the protective sheath is a resin protective sheath.

Preferably, the connecting plate of the upper pipe clamp and the connecting plate of the lower pipe clamp are detachably and fixedly connected through bolts and nuts.

The invention has the advantages of multiple supporting points, uniform stress, large attaching and attaching area, good fastening performance, suitability for pipelines in different directions, good inner pipe supporting and damping effects and convenient installation and disassembly. The safety and the stability of the fixed fuel supply system pipeline are effectively guaranteed.

Drawings

Fig. 1 is a schematic perspective view of a double-walled pipe supporting shock-absorbing pipe clamping device according to the present invention.

Fig. 2 is a front view schematically showing the structure of the double-walled pipe supporting shock-absorbing pipe clamping device of the present invention installed between the double-walled pipes.

Figure 3 is a schematic perspective view of the double-walled pipe support shock absorbing pipe clamp device of the present invention mounted on the inner pipe.

Fig. 4 is a perspective view of fig. 3 when installed in an outer tube.

Wherein: 1. an upper pipe clamp; 2. a lower pipe clamp; 3. an inner tube; 4. a tube clamp support sheet; 5. an outer tube; 6. and (6) a protective sleeve.

Detailed Description

Example (b):

as shown in fig. 1 to 4, the double-wall pipe supporting and damping pipe clamp device comprises an upper pipe clamp 1 and a lower pipe clamp 2 which are bent according to the pipe diameters of an inner pipe and an outer pipe of the double-wall pipe, wherein a connecting plate of the upper pipe clamp 1 is detachably and fixedly connected with a connecting plate of the lower pipe clamp 2. Preferably, the connecting plate of the upper pipe clamp 1 is detachably and fixedly connected with the connecting plate of the lower pipe clamp 2 by bolts and nuts. And a buffer gap is reserved between the connecting plate of the upper pipe clamp 1 and the connecting plate of the lower pipe clamp 2 which are positioned on the same side.

As shown in fig. 1-2, the half part of the upper pipe clamp 1 surrounds the outer wall of the inner pipe 3 of the double-wall pipe, and the radian of the inner circle formed by the upper pipe clamp 1 and the lower pipe clamp 2 is the same as the radian of the inner pipe 3. The two ends of the upper pipe clamp 1 are outwards folded to form connecting plates, and a plurality of pipe clamp supporting plates 4 which are upwards bent are arranged on the side surface of the upper pipe clamp 1 at intervals; the front end of the pipe clamp supporting sheet 4 extends along the direction of the pipeline and is supported on the inner wall of the outer pipe 5 of the double-wall pipe. The lower pipe clamp 2 is the same as the upper pipe clamp 1 in structure and the half parts of the lower pipe clamp and the upper pipe clamp are encircled on the opposite sides of the upper pipe clamp 1 on the outer wall of the inner pipe 3.

The contact surface of the pipe clamp support sheet 4 and the inner wall of the outer pipe 5 is an arc surface which is attached to each other. The cross section of each pipe clamp backing sheet 4 is fan-shaped and evenly distributed, bends according to the size in the adjacent space of double-walled pipe, and each the outside all the cover of pipe clamp backing sheet 4 is equipped with protective sheath 6, protective sheath 6 is the resin protective sheath. Each pipe clamp supporting sheet 4 is contacted with the inner wall of the outer pipe 5 through a resin outer sleeve outside the front end, so that rigid contact between the pipe clamp supporting sheets is avoided, and the functions of shock absorption and insulation are achieved. The pipe clamp supporting sheet 4 has certain elasticity and strength so as to play a role in supporting, buffering and damping.

The installation method of the invention comprises the following steps:

1. and after the inner pipe is manufactured, the arrangement position of the double-wall pipe supporting and damping pipe clamp device is found out according to the design drawing requirements.

2. An upper pipe clamp 1 and a lower pipe clamp 2 meeting the standard requirements are selected and pre-fitted on the outer surface of the inner pipe 2.

3. Bolts and nuts are arranged on the connecting plates of the upper pipe clamp 1 and the lower pipe clamp 2 and are uniformly screwed and fixed, so that the upper pipe clamp 1 and the lower pipe clamp 2 are attached to the outer surface of the inner pipe 3, and the protective sleeves 6 are arranged on the pipe clamp supporting pieces.

4. The inner pipe 3 and the outer pipe 5 on which the double-walled pipe support shock-absorbing pipe clamping device is installed are assembled. Firstly, clamping the end surface of a protective sleeve 6 of a pipe clamp support sheet 4 at the lower part at the bottom of the inner surface of an outer pipe; and pressing the end surface of the protective sleeve 6 of the upper pipe clamp supporting sheet 4, and simultaneously forcibly pushing the outer pipe 5 to the direction of the double-wall pipe supporting damping pipe clamp device along the axis direction to enable the outer pipe 5 to be sleeved at the sleeving position required by the inner pipe, so that the installation and the positioning are completed. When the outer tube 6 is installed, a non-corrosive lubricant (liquid) and the like is coated outside the protective sleeve 6 of each tube clamp supporting sheet or on the inner wall of the outer tube so as to facilitate the installation and the nesting of the outer tube.

The invention has the following characteristics:

1. the supporting effect is good: the fixed binding surfaces of the upper pipe clamp 1 and the lower pipe clamp 2 are bent according to the radian of the inner pipe of the double-wall pipe, and the pipe clamp support plates 4 have multiple stress points and are uniformly distributed, for example, eight in fig. 1. The inner pipe 3 of the double-wall pipe can be uniformly stressed and has small deformation amount and reliable supporting stability no matter arranged in the horizontal or vertical direction.

2. The manufacturing method and the material optimization: the invention adopts the integrated punching and bending process, selects high-quality carbon steel or stainless steel materials with good toughness and strength, and has good mechanical properties.

3. Optimizing the fixing effect: the fixed binding surfaces of the upper pipe clamp 1 and the lower pipe clamp 2 are bent according to the radian of the inner pipe of the double-wall pipe, so that the attachment area is large, and the binding property is good. A gap is reserved between the upper pipe clamp 1 and the lower pipe clamp 2, so that the bolt is conveniently pressed, meanwhile, a buffer space is provided for elastic deformation of the excircle of the pipe clamp, and rigid contact and fatigue damage of the upper pipe clamp 1 and the lower pipe clamp 2 are reduced. The design of four bolts is enough to ensure the fixed strength and stability of the bolt, and the condition of looseness and sliding is avoided.

4. The outer pipe installation is convenient: the bending direction of each pipe clamp support sheet 4 is parallel to the double-wall pipe. After the supporting pipe clamp on the inner pipe is fixed during installation, the outer pipe 5 can be pushed in the directions of two sides. Because the bending direction of each pipe clamp support sheet 4 is parallel and consistent with the pushing direction of the outer pipe 5 and the friction coefficient of the protective sleeve 6 is smaller, the outer pipe 5 can be installed more smoothly, and the installation efficiency is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The double-wall pipe supporting and damping pipe clamp device is characterized by comprising an upper pipe clamp (1) and a lower pipe clamp (2), wherein the half part of the upper pipe clamp (1) surrounds the outer wall of an inner pipe (3) of the double-wall pipe, two ends of the upper pipe clamp (1) are outwards folded to form a connecting plate, and a plurality of pipe clamp supporting plates (4) which are upwards bent are arranged on the side surface of the upper pipe clamp (1) at intervals;

the lower pipe clamp (2) and the upper pipe clamp (1) have the same structure, and the half parts of the lower pipe clamp and the upper pipe clamp encircle the opposite sides of the upper pipe clamp (1) on the outer wall of the inner pipe (3);

the connecting plate of the upper pipe clamp (1) is detachably and fixedly connected with the connecting plate of the lower pipe clamp (2);

the front end of the pipe clamp supporting sheet (4) extends along the direction of the pipeline and is supported on the inner wall of the outer pipe (5) of the double-wall pipe.

2. Double-walled pipe support shock absorbing pipe clamping device according to claim 1, characterized in that a damping gap is left between the connection plate of the upper pipe clamp (1) and the connection plate of the lower pipe clamp (2) on the same side.

3. The double-walled pipe supporting and damping pipe clamping device as claimed in claim 1, wherein the contact surfaces of the pipe clamping supporting plates (4) and the inner wall of the outer pipe (5) are arranged in a fitted arc surface.

4. Double-walled pipe support shock absorbing pipe clamping device as claimed in claim 1, characterized in that each pipe clamp support plate (4) is externally sleeved with a protective sleeve (6).

5. Double-walled pipe support shock absorbing pipe clamping device according to claim 3, characterized in that the protective sheath (6) is a resin protective sheath.

6. Double-walled pipe support shock absorbing pipe clamp device according to claim 1, characterized in that the detachable fastening between the connection plate of the upper pipe clamp (1) and the connection plate of the lower pipe clamp (2) is a bolt and nut connection.