Ship cutting torch pipeline immersion leak test tooling

Abstract

This invention provides a water immersion leak testing fixture for marine cutting torch pipelines, comprising a base, a leak testing container mounted on the base, the leak testing container being a watertight container; the top of the leak testing container is open, and a drain outlet is located on the side wall of the leak testing container near the bottom; the center of gravity of the entire leak testing fixture is located below the bottom third of the fixture's height. This invention is a modular fixture, with a main structure employing a frame structure with a base, and an internal replaceable watertight liner. If the liner leaks, it can be directly replaced; if the drain valve leaks, it can be directly replaced; if the frame or base is damaged, it can be directly welded for repair. It is inexpensive to manufacture, easy to maintain, and convenient to transport.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding tooling technology, and specifically relates to a marine cutting torch pipeline immersion leak testing tool. Background Technology

[0002] During shipbuilding, the following gases are used: compressed air (powering grinding tools), carbon dioxide gas (protective gas for carbon dioxide welding), oxygen and acetylene gas (gas used in torch cutters), acetylene gas (gas used to adjust steel wall deformation in pyrotechnics), and compressed nitrogen (fire-resistant inert gas). All of these gases are connected to a main pipe via rubber hoses before reaching the end of the tool. In the complex environment of a ship, these pipelines are easily damaged. Leaks of any of these gases could potentially cause serious accidents, therefore, regular inspection and leak testing of these gas pipelines are necessary.

[0003] The existing cutting torch pipeline immersion leak testing fixture is entirely welded from steel plates, which has the following disadvantages: The weight is too great and it is inconvenient to move; the ship is a customized non-standard product with a short construction cycle, which will cause this tooling to be moved frequently, and its large weight makes it inconvenient to move. Steel plates are prone to rust when submerged in water, and are inconvenient to maintain. The tooling is made entirely of steel plates, resulting in high manufacturing costs. Summary of the Invention

[0004] To address the problems existing in the prior art, a marine cutting torch pipeline immersion leak test fixture is proposed, including a base, on which a leak test container is provided. The leak test container is a watertight container. The top of the leak test container is open, and the side wall of the leak test container is provided with a drain outlet near the bottom. The center of gravity of the entire leak test fixture is located below the bottom third of the height of the leak test fixture.

[0005] Furthermore, the base is a steel base, which is composed of galvanized sheet metal and galvanized steel pipe welded together.

[0006] Furthermore, the base is provided with an external frame that matches the shape of the leak test container, and the leak test container is placed within the space enclosed by the external frame.

[0007] Furthermore, the outer frame is welded from galvanized steel pipes, and the bottom of the outer frame is fixedly welded to the base.

[0008] Furthermore, a nameplate holder is provided on the outer side of the outer frame for attaching nameplate information.

[0009] Furthermore, the leak test container has a plastic inner liner, and the drain outlet is equipped with a drain shut-off valve.

[0010] Furthermore, the base is provided with a recess that matches the drain shut-off valve.

[0011] Furthermore, the bottom surface of the base is provided with an adsorption assembly for adsorbing the entire tooling onto the horizontal deck.

[0012] Furthermore, the adsorption component is an electromagnet installed inside the base.

[0013] Furthermore, the base has several circumferentially arranged adsorption points on its side. The adsorption points are made of galvanized thin plates, and the size of the adsorption points must ensure that the tooling can be adsorbed onto the vertical cabin wall when the adsorption assembly is working.

[0014] The marine cutting torch pipeline immersion leak testing fixture provided by this invention has the following advantages over the prior art: This invention is a modular tooling. The main structure adopts a frame structure with a base. The interior uses a replaceable watertight inner liner. If the inner liner leaks, it can be replaced directly. If the drain valve leaks, it can be replaced directly. If the frame or base is damaged, it can be repaired by welding. It is inexpensive to manufacture, easy to maintain, and convenient to transport. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram (I) illustrating the actual application of the present invention in a certain embodiment; Figure 3 Schematic diagram II shows the actual application of the present invention in a certain embodiment; Figure 4 Schematic diagram III showing the actual application of the present invention in a certain embodiment.

[0016] Attached figures and their names: 1. Steel base, 2. Inner liner, 3. Drain outlet, 4. Outer frame. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Reference Figures 1-4 This application proposes a tooling for immersion leak testing of marine cutting torch pipelines. This tooling mainly consists of three parts: 1. The first part is a steel base (1), which is composed of galvanized thin steel plate and galvanized steel pipe welded together.

[0019] 2. The second part is the outer frame (4), which is welded from galvanized steel pipes and is fixedly welded to the base. A nameplate holder (not shown in the attached drawing) is set on the outer frame to attach the nameplate information.

[0020] 3. The third part is the inner liner (2), which is made of plastic. A drain outlet (3) is provided on the side wall of the inner liner near the bottom. A shut-off valve is installed outside the drain outlet to discharge the test water.

[0021] It should be noted that the center of gravity of the entire leak testing fixture is located below the bottom third of the fixture's height to ensure its stability, especially after the inner tank is filled with water for leak testing.

[0022] This fixture is a modular design, inexpensive to manufacture, easy to maintain, and convenient to transport. If the inner tank leaks, simply replace the inner tank. If the drain valve leaks, simply replace the drain valve. Damaged external frames and bases can be repaired by welding.

[0023] The steel base is equipped with an electromagnet controlled by a switch. When the electromagnet is energized, the steel base and the outer frame will become magnetic at the same time, making it easy to attach to the horizontal deck (steel deck) or the vertical bulkhead (steel bulkhead), which makes it easy to fix the entire tooling position and facilitates leak testing by the operator.

[0024] Since the main structure of the entire tooling is a frame structure, the overall weight is relatively light and it can be easily pushed by a handcart. After reaching the designated position, the inner tank can be assembled and water can be poured out. At the same time, the base electromagnet is energized to work, which can be used for leak testing. After the leak test is completed, the base electromagnet is de-energized, and the water in the inner tank is released through the bottom shut-off valve. The tooling is then moved to the next leak test location.

[0025] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope of the present invention.

Claims

1. A tooling for immersion leak testing of marine cutting torch pipelines, comprising a base, characterized in that: The base is provided with a leak test container, which is a watertight container; the top of the leak test container is open, and the side wall of the leak test container is provided with a drain outlet near the bottom; the center of gravity of the entire leak test fixture is located below the bottom third of the height of the leak test fixture.

2. The tooling according to claim 1, characterized in that: The base is a steel base, which is composed of galvanized sheet metal and galvanized steel pipe welded together.

3. The tooling according to claim 1, characterized in that: The base is provided with an external frame that matches the shape of the leak test container, and the leak test container is placed in the space enclosed by the external frame.

4. The tooling according to claim 3, characterized in that: The outer frame is welded from galvanized steel pipes, and the bottom of the outer frame is fixedly welded to the base.

5. The tooling according to claim 3, characterized in that: The outer side of the external frame is provided with a nameplate holder for attaching nameplate information.

6. The tooling according to claim 1, characterized in that: The leak test container has a plastic inner liner, and the drain outlet is equipped with a drain shut-off valve.

7. The tooling according to claim 6, characterized in that: The base has a recess that matches the drain shut-off valve.

8. The tooling according to claim 1, characterized in that: The base is equipped with an adsorption assembly on its bottom surface, which is used to adsorb the entire tooling onto the horizontal deck.

9. The tooling according to claim 8, characterized in that: The adsorption component is an electromagnet installed inside the base.

10. The tooling according to claim 9, characterized in that: The base has several circumferentially arranged adsorption points on its side. The adsorption points are made of galvanized thin plates. The size of the adsorption points must ensure that the tooling can be adsorbed onto the vertical bulkhead when the adsorption assembly is working.

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