阅读说明：本技术 一种船舶燃油管焊接充气装置及其使用方法 (Ship fuel pipe welding inflation device and use method thereof ) 是由 周彦成 周冬 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种船舶燃油管焊接充气装置及其使用方法,所述装置包括气软管、用于封堵第一对接管子的第一密封装置、用于封堵第二对接管子的第二密封装置,所述第一密封装置的两侧以及第二密封装置的一侧均设置有连接组件,第一密封装置一侧的连接组件与供气软管相连、另一侧的连接组件通过铰链与第二密封装置上的连接组件相连。本发明可以有效解决不锈钢管进行氩弧焊的过程中管内氩气容易流失的问题,确保施焊位置处于隔绝空气的状态,避免焊缝位置出现气泡及焊瘤现状,提高一次焊接合格率。(The invention discloses a ship fuel pipe welding inflation device and a use method thereof. The invention can effectively solve the problem that argon in the stainless steel pipe is easy to lose in the argon arc welding process of the stainless steel pipe, ensure that the welding position is in an air-isolated state, avoid the current situations of bubbles and welding beading at the welding position and improve the one-time welding qualification rate.)

1. The utility model provides a boats and ships fuel pipe welding aerating device which characterized in that, includes the air feed hose, is used for the first sealing device of the first butt joint pipe of shutoff, is used for the second sealing device of shutoff second butt joint pipe, the both sides of first sealing device and one side of the first sealing device of orientation of second sealing device all are provided with coupling assembling, and the coupling assembling of first sealing device one side links to each other with the air feed hose, and the coupling assembling of opposite side passes through the hinge and links to each other with the coupling assembling on the second sealing device.

2. The marine fuel pipe welding inflator according to claim 1, wherein the first sealing device and the second sealing device are identical in structure and each comprise an elastic sealing element and a connecting pipe penetrating through the elastic sealing element.

3. The marine fuel pipe welding inflator according to claim 2, wherein the connecting pipe on the first sealing device is a hollow pipe, and the connecting pipe on the second sealing device is a solid pipe.

4. The marine fuel pipe welding inflator according to claim 2, wherein an outer surface of the elastic sealing member is further wrapped with a layer of aluminum foil tape.

5. The marine fuel pipe welding inflator according to claim 2 or 4, wherein the elastic sealing member is a water-absorbent sponge.

6. The marine fuel pipe welding inflator of claim 1, wherein the connection assembly includes a connection plate and a connection fitting secured to the connection plate.

7. The marine fuel pipe welding inflator according to claim 1, wherein a blind plate is further disposed on a side of the second sealing device facing away from the first sealing device.

8. The use method of the marine fuel pipe welding and inflating device of any one of claims 1 to 7 is characterized by comprising the following steps:

s1, plugging a first sealing device and a second sealing device of the welding and inflating device of the ship fuel pipes into a first butt pipe and a second butt pipe respectively;

s2, connecting the air supply hose with an external air supply bottle group stored with protective gas;

s3, butting the first butt pipe with the second butt pipe;

s4, introducing protective gas by using the gas supply bottle group, filling the protective gas into a tube cavity between the first sealing device and the second sealing device through the gas supply hose and a connecting pipe on the first sealing device, and performing welding operation on the welding seam position after the protective gas is filled for a set time;

and S5, after the welding operation is finished, the gas supply bottle group and the gas supply hose are detached, then the gas supply hose is held by a hand to pull the ship fuel pipe welding and inflating device out of the first butt pipe, and in the process of pulling out the ship fuel pipe welding and inflating device, the ship fuel pipe welding and inflating device can clean residues at the position of a welding line.

Technical Field

The invention relates to the technical field of ship construction, in particular to a ship fuel pipe welding and inflating device and a using method thereof.

Background

The novel tool for welding and inflating the fuel oil pipe of the ship is invented in order to adapt to the modernized ship building rhythm with the increasing speed and the cost reducing gain, realize the standardization of ship building, fully utilize limited resources, reduce material loss and labor cost and combine field construction conditions and operating environments.

Hundreds of stainless steel (SL316L) pipes are counted in various fuel systems of the ship, all the pipes are welded in an argon arc butt joint mode, and due to the particularity of the welding mode, the welding position needs to be isolated from air, and construction is carried out in the environment of pure argon, so that the technical requirement on welders is high. In the prior welding process, a welder usually seals the end opening of a pipe by using cotton cloth, argon is filled from the other end of the pipe, welding operation is started after a certain time, but when a large-diameter pipe is encountered, argon needs to be filled for a long time, because no good isolation layer exists and the diameter of the pipe is large, the loss of the argon is very large, bubbles and welding beading are easy to appear at a welding position, and the yield of one-time welding submission is low.

Disclosure of Invention

In view of the above, the present invention provides a welding and inflating device for a ship fuel pipe and a method for using the same, which are used to solve the problems in the background art.

The utility model provides a boats and ships fuel pipe welding aerating device, includes air feed hose, is used for the first sealing device of the first butt joint pipe of shutoff, is used for the second sealing device of shutoff second butt joint pipe, the both sides of first sealing device and one side of the first sealing device of orientation of second sealing device all are provided with coupling assembling, and the coupling assembling of first sealing device one side links to each other with air feed hose, and the coupling assembling of opposite side passes through the hinge and links to each other with the coupling assembling on the second sealing device.

Preferably, the first sealing device and the second sealing device are identical in structure and each comprise an elastic sealing element and a connecting pipe penetrating through the elastic sealing element.

Preferably, the connecting pipe on the first sealing device is a hollow pipe, and the connecting pipe on the second sealing device is a solid pipe.

Preferably, the outer surface of the elastic sealing member is further wrapped with a layer of aluminum foil tape.

Preferably, the elastic sealing member is a water-absorbent sponge.

Preferably, the connecting assembly comprises a connecting plate and a connecting joint fixed on the connecting plate.

Preferably, the side of the second sealing means facing away from the first sealing means is further provided with a blind plate.

A use method of a ship fuel pipe welding inflation device specifically comprises the following steps:

s1, plugging a first sealing device and a second sealing device of the welding and inflating device of the ship fuel pipes into a first butt pipe and a second butt pipe respectively;

s2, connecting the air supply hose with an external air supply bottle group stored with protective gas;

s3, butting the first butt pipe with the second butt pipe;

s4, introducing protective gas by using the gas supply bottle group, filling the protective gas into a tube cavity between the first sealing device and the second sealing device through the gas supply hose and a connecting pipe on the first sealing device, and performing welding operation on the welding seam position after the protective gas is filled for a set time;

and S5, after the welding operation is finished, the gas supply bottle group and the gas supply hose are detached, then the gas supply hose is held by a hand to pull the ship fuel pipe welding and inflating device out of the first butt pipe, and in the process of pulling out the ship fuel pipe welding and inflating device, the ship fuel pipe welding and inflating device can clean residues at the position of a welding line.

The invention has the beneficial effects that:

1. the invention can effectively solve the problem that argon in the stainless steel pipe is easy to lose in the argon arc welding process of the stainless steel pipe, ensure that the welding position is in an air-isolated state, avoid the current situations of bubbles and welding beading at the welding position and improve the one-time welding qualification rate.

2. The welding and inflating device for the ship fuel pipe is simple in structure, very convenient to install and operate, suitable for welding pipes of various specifications and different installation positions, and very wide in application range.

3. The pipeline sealing device can seal the pipeline and clean the pipeline, and by utilizing the characteristics of easy expansion and easy shrinkage of the sponge, the sealing problem of the first sealing device and the second sealing device in the process of moving back and forth in the pipeline can be effectively solved, the welding position is ensured to be in an air isolation state, meanwhile, the water-absorbing sponge can also absorb water vapor in the pipeline, and impurities in the pipeline and the inner wall of the pipeline can be cleaned in the process of moving back and forth of the first sealing device and the second sealing device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a welding and inflating device for a ship fuel pipe.

FIG. 2 is a diagram showing the state of use of the welding and inflating device for the fuel pipe of the ship.

The reference numerals in the figures have the meaning:

the device comprises an air supply hose 1, a first butt joint pipe 2, a second butt joint pipe 3, a first sealing device 4, a second sealing device 5, an elastic sealing element 6, a connecting pipe 7, an aluminum foil tape 8, a connecting assembly 9, a hinge 10, a connecting plate 11, a connecting joint 12, a blind plate 13, a pipe cavity 14 and a welding seam 15.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected" and "fixed" are used in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The invention provides a welding and inflating device for a ship fuel pipe, which comprises a gas supply hose 1, a first sealing device 4 for plugging a first butt pipe 2 and a second sealing device 5 for plugging a second butt pipe 3.

The gas supply hose 1 is a rubber hose commonly used for a ship hydraulic system, two ends of the gas supply hose are provided with outer sleeve type screw caps, and the gas supply hose 1 is connected with an external gas supply bottle group stored with protective gas and used for conveying the protective gas to the interior of a pipe to be welded during welding. In this embodiment, the shielding gas stored in the gas cylinder group is argon.

The first sealing device 4 and the second sealing device 5 have the same structure, and each sealing device comprises an elastic sealing element 6 and a connecting pipe 7 penetrating through the elastic sealing element 6. The connecting pipe on the first sealing device 4 is a hollow pipe, and the connecting pipe on the second sealing device 5 is a solid pipe.

In this embodiment, the elastic sealing members 6 of the first sealing device 4 and the second sealing device 5 are absorbent sponges, which can not only seal the pipeline, but also clean the pipeline. Through utilizing the easy inflation of sponge, the sealed problem of easy shrink nature of first sealing device 4 and second sealing device 5 round trip movement in-process in the pipeline can effectively be solved, and the hydroscopicity sponge also can adsorb the vapor in the pipeline simultaneously, can clean the inside impurity of pipeline and inner wall at first sealing device 4 and second sealing device 5 round trip movement in-process.

Preferably, the outer surface of the elastic sealing member 6 is further wrapped with a layer of aluminum foil tape 8. In this embodiment, the aluminum foil tape 8 is made of a wrapping material commonly used in shipyards, and is wrapped outside the elastic sealing element 6, so that loss of sponge powder after friction of sponge in the pipeline can be reduced, and a protective effect is achieved.

The two sides of the first sealing device 4 and one side of the second sealing device 5 facing the first sealing device are provided with connecting assemblies 9, the connecting assembly on one side of the first sealing device 4 is connected with the air supply hose, and the connecting assembly on the other side of the first sealing device 4 is connected with the connecting assembly on the second sealing device 5 through a hinge 10.

The structure of the connecting assembly on the first sealing means 4 may be the same as or different from the structure of the connecting assembly on the second sealing means 5.

In this embodiment, the connection assembly on the first sealing device 4 is different from the connection assembly on the second sealing device 5 in structure, the connection assembly on the first sealing device 4 includes a connection plate 11 and a connection joint 12 fixed on the connection plate 11, the connection joint 12 is an external thread joint, and the connection joint 12 and the connection pipe 7 on the first sealing device 4 are welded into a whole. The connecting assembly on the second sealing device 5 comprises only the connecting plate 11. The connecting plate 11 is a groove-shaped plate.

Preferably, a blind plate 13 is further provided on the side of the second sealing device 5 facing away from the first sealing device 4, the blind plate 13 being used to fix the elastic seal of the second sealing device 5.

The use method of the welding and inflating device for the ship fuel pipe comprises the following steps:

s1, plugging the first sealing device 4 and the second sealing device 5 of the welding and inflating device of the ship fuel pipes into the first butt pipe 2 and the second butt pipe 3 respectively;

s2, connecting the air supply hose 1 with an external air supply bottle group stored with protective gas;

s3, butting the first butt pipe 2 with the second butt pipe 3;

s4, introducing protective gas by using the gas supply bottle group, filling the protective gas into the tube cavity 14 between the first sealing device 4 and the second sealing device 5 through the gas supply hose 1 and the connecting tube 7 on the first sealing device 4, and welding the welding position 15 after the protective gas is filled for a set time;

s5, after the welding operation is finished, the gas supply bottle group and the gas supply hose 1 are detached, then the gas supply hose 1 is held by a hand to pull the ship fuel pipe welding and inflating device out of the first butt pipe 2, and in the process of pulling out the ship fuel pipe welding and inflating device, the ship fuel pipe welding and inflating device can clean residues at the position of a welding line.

Through experiments, 92 stainless steel pipes are spot-checked in the butt welding of 1000 stainless steel pipes before the gas charging device is welded by using the fuel oil pipe of the ship, and the situation that the welding seams are unqualified needs to be reworked. According to the standard calculation that 40 minutes is needed for an 89 mm-diameter pipe argon arc welding operation, and 20 yuan/hour is needed for a plumber, and 30 yuan/hour is needed for a welder, 50X0.67 yuan is 33 yuan is needed for repairing each pipe, about 1600 fuel oil pipes are needed for the ship, 148 yuan is needed for repairing, and 4884 yuan is needed for the ship, and about 100 hours is needed.

After the fuel pipe welding and inflating device for the ship is used, the expenditure and the time can be saved, 10 minutes is saved when the centering and the welding of one pipe are finished, about 270 hours can be saved according to 1600 pipes, and 270X50 is saved to 13500 yuan.

After the fuel pipe welding and gas filling device for the ship is used, the welding operation of the fuel pipe of the whole ship can be saved by 370 hours, which is about 20000 RMB.

After the ship fuel pipe welding and inflating device is used, the argon arc welding efficiency and the welding quality are improved, the labor and the cost are saved, the ship owner can be commented on the argon arc welding efficiency and the welding quality, the trust of the ship owner on the staff of the factory is improved, and a good foundation is laid for ship delivery smoothly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.