Detachable sealing device for ship cabin process hole and cabin air compression process hole blocking method

Abstract

The invention belongs to the technical field of ship and ocean engineering construction, and particularly relates to a detachable sealing device for a ship cabin auxiliary hole and a cabin air compression auxiliary hole blocking method. The detachable sealing device acts on a cabin wall plate, a through auxiliary hole is formed in the cabin wall plate, and the detachable sealing device comprises a matching assembly, a sealing ring and a rapid locking mechanism; the matching assembly comprises an inner sealing plate and an outer pressing plate which are matched with each other, a surrounding sealing ring is arranged on the inner sealing plate, the inner sealing plate is located in the cabin wall plate and installed on the auxiliary hole, and the outer pressing plate is located outside the cabin wall plate, installed on the auxiliary hole and connected with the inner sealing plate in a locked mode through a rapid locking mechanism. The auxiliary hole plugging tool is convenient and fast to mount and dismount, and can be mounted and dismounted only by a wrench without fire welding, so that the time for transferring equipment and pulling wires is saved, and the mounting efficiency is improved. The auxiliary hole plugging tool adopts the sealing rubber ring, the sealing performance is good after the auxiliary hole plugging tool is extruded and installed by external force, the passing rate is high during an air compression test, repeated welding and plugging of the auxiliary hole are not needed, and the air compression test efficiency and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ship and ocean engineering construction, and particularly relates to a detachable sealing device and method for a ship cabin process hole. Background Technique

[0002] Large offshore structures such as ships and offshore engineering platforms need to dive and float when operating at sea, and also need to store some substances, etc., and absolute watertightness is required. Therefore, the airtightness of the cabin needs to be inspected during the construction process. Methods for inspecting the airtightness of the cabin during the construction of large offshore structures such as ships and offshore engineering platforms include pneumatic tests, hydrostatic tests, flushing tests, and sprinkling tests. Generally, the pneumatic test method is selected according to the airtightness level and operation convenience. The steps of the pneumatic test are as follows: First, the engineering inside the cabin needs to meet the pneumatic requirements and the cabin needs to be sealed. Second, air is supplied at the air inlet to fill the cabin with gas and a certain pressure needs to be reached. Finally, observe the pressure gauge to check the airtightness of the cabin welds, that is, the cabin air pressure reaches the test range and remains for a certain time, indicating that the airtightness is qualified.

[0003] The inspection of the airtightness of the cabin is generally carried out during the project construction process. During the construction process, many cabins will open temporary process holes at places convenient for personnel to pass through for the convenience of construction. Since the project has not been completed, this process hole will be retained all the time. However, when the cabin is subjected to a pneumatic test, the cabin must be in a sealed state, which creates a contradiction. In the past practice, the usual method is as follows: First, seal the process hole cover plate back and weld it well. The weld needs to be watertight to meet the requirements of the pneumatic test. Second, perform the pneumatic tightness test step by step. During the test, it is necessary to check whether the process hole weld is watertight. Finally, after the pneumatic test is successful, the process hole weld needs to be cut open again to open the process hole. Such a process hole sealing method often has disadvantages in the actual implementation process. The workload of cutting open after the process hole is sealed back is large, wasting construction time. During the period when the process hole is blocked, workers cannot pass through this passage, and the construction equipment connection line cannot enter, wasting a large amount of unnecessary labor. Since this process hole needs to be cut open after being blocked, it belongs to temporary welding, so the welding quality of the weld generally cannot meet the standard requirements. When performing a pneumatic test, often this weld will leak air, resulting in the failure of the test. Even during the pneumatic process, excessive pressure may cause the weld to burst and the cover plate to burst open, resulting in safety accidents. Summary of the Invention

[0004] The purpose of the present invention is to provide a detachable sealing device for a ship cabin process hole and a method for plugging a cabin pneumatic process hole, aiming to solve the technical problem of insufficient airtightness in the prior art.

[0005] To achieve the above object, the present invention provides a detachable sealing device for a process hole in a ship's cabin, which acts on the cabin wall panel. There is a through process hole in the cabin wall panel, and it includes a matching component, a sealing ring, and a quick locking mechanism. The matching component includes an inner sealing plate and an outer pressing plate that match each other. There is a surrounding sealing ring on the inner sealing plate. The inner sealing plate is located inside the cabin wall panel and installed on the process hole, and the outer pressing plate is located outside the cabin wall panel and installed on the process hole, and is locked and connected to the inner sealing plate through a quick locking mechanism.

[0006] Further, the quick locking mechanism includes a stud and a nut. A plurality of studs are arranged around the inner sealing plate, and the studs extend out from the process hole. The outer pressing plate is sleeved inside the studs, and the nut is threadedly connected to the extended studs to lock the inner sealing plate and the outer pressing plate.

[0007] Further, the sealing ring encloses the outside of the process hole, and the sealing ring is compressed between the inner sealing plate and the outer pressing plate.

[0008] Further, there are reinforcing stiffeners for support on the cabin wall panel.

[0009] One or more of the above technical solutions in the detachable sealing device for a process hole in a ship's cabin provided by the embodiments of the present invention have at least the following technical effects:

[0010] By using the detachable sealing device, the cumbersome steps of welding and cutting the process hole in the traditional method are avoided, greatly saving construction time and labor costs. During the installation of the sealing device, it is not necessary to completely close the process hole, and workers and construction equipment can still pass and be used normally, improving construction flexibility. The problems of weld quality caused by temporary welding are avoided, reducing the risks of test failure and safety accidents. The sealing device can be reused, reducing material consumption and maintenance costs. The quick locking mechanism provides a reliable sealing effect, avoiding safety accidents caused by air leakage or bursting of the weld during the air pressure process.

[0011] The present invention also provides a method for plugging a compressed air process hole in a cabin, including the following steps:

[0012] S100: Design the sizes of the outer pressing plate and the inner sealing plate of the process hole plugging tooling according to the size and shape of the process hole, determine the position and size of the bolt holes on the outer pressing plate, and after the design is completed, draw the drawing and cut the materials;

[0013] S200: Install studs on the inner sealing plate according to the process hole size and weld them firmly;

[0014] S300: Determine the size of the sealing ring according to the stud installation position on the inner sealing plate, manufacture the sealing ring and install it on the inner sealing plate;

[0015] S400: Clean the sundries near the edge of the process hole to avoid blocking the installation of the tooling or affecting the airtightness after the tooling is installed;

[0016] S500: Install the process hole plugging tooling. First, install the inner sealing plate with studs and sealing rings on the process holes in the cabin; then align the studs and install the outer pressure plate outside the cabin; finally, install the nuts outside the cabin and tighten them in sequence to achieve progressive tightening;

[0017] S600: Check the tightness of the process holes after plugging, and conduct a compressed air test after the tightness is intact.

[0018] The above one or more technical solutions in the cabin compression process hole plugging method provided by the embodiment of the present invention have at least one of the following technical effects:

[0019] The installation and disassembly of the process hole plugging tooling is convenient and quick. It can be completed with a wrench without hot welding, which saves time for transferring equipment and pulling wires and improves installation efficiency. The process hole plugging tooling uses sealing strips. After being squeezed and installed with external force, it has good sealing performance and a high pass rate during the compressed air test. There is no need to repeatedly weld and plug the process holes, which improves the efficiency and quality of the compressed air test, and also improves the pass rate of the tightness test. The inner sealing plate of the process hole plugging tooling is larger than the process hole. After compressed air, the inner sealing plate will be tightly attached to the process hole motherboard. After installation, it is stable, reliable, and safe, which greatly reduces the safety risk of compressed air testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the initial overall structure of a detachable sealing device for a process hole in a ship cabin provided by an embodiment of the present invention;

[0022] Figure 2 A schematic structural diagram of a matching assembly of a detachable sealing device for a process hole in a ship cabin provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of the detachable sealing device for a process hole in a ship cabin after installation provided by an embodiment of the present invention;

[0024] Figure 4 A flow chart of a method for sealing a cabin air compression process hole provided by an embodiment of the present invention;

[0025] Among them, the reference numerals in the figure are:

[0026] 100, cabin wall panel; 110, process hole; 120, matching component; 121, inner sealing plate; 122, outer pressing plate; 130, sealing ring; 140, quick locking mechanism; 141, stud; 142, nut; 170, strengthening rib. Detailed implementation mode

[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in Figures 1-4, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The following is by referring to the attached Figures 1-4 The described embodiments are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation of the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] In an embodiment of the present invention, as Figures 1-3As shown in the figure, a detachable sealing device for the process hole of a ship's cabin is provided, which acts on the cabin wall panel 100. There is a through process hole 110 on the cabin wall panel 100, including a matching component 120, a sealing ring 130 and a quick locking mechanism 140. The matching component 120 includes an inner sealing plate 121 and an outer pressing plate 122 that match each other. There is a surrounding sealing ring 130 on the inner sealing plate 121. The inner sealing plate 121 is located inside the cabin wall panel 100 and installed on the process hole 110. The outer pressing plate 122 is located outside the cabin wall panel 100 and installed on the process hole 110, and is locked and connected to the inner sealing plate 121 through the quick locking mechanism 140.

[0032] Specifically, the detachable sealing device avoids the cumbersome steps of welding and cutting the process hole 110 in the traditional method, greatly saving construction time and labor costs. The installation time is shortened by more than 75% compared with the traditional process. During the installation of the sealing device, it is not necessary to completely close the process hole 110, and workers and construction equipment can still pass and be used normally, improving the construction flexibility. It avoids the weld quality problems caused by temporary welding and reduces the risks of test failure and safety accidents. The sealing device can be reused, reducing material consumption and maintenance costs. The quick locking mechanism 140 provides a reliable sealing effect and avoids safety accidents caused by air leakage or bursting of the weld during the air compression process.

[0033] Furthermore, as Figures 1-3 shown, the quick locking mechanism 140 includes a stud 141 and a nut 142. A number of studs 141 are arranged around the inner sealing plate 121, and the studs 141 protrude from the process hole 110. The outer pressing plate 122 is sleeved inside the studs 141, and the nut 142 is threadedly connected to the protruding studs 141 to lock the inner sealing plate 121 and the outer pressing plate 122. Specifically, through the evenly distributed studs 141 and the tightly tightened nuts 142, a firm connection and effective sealing between the inner sealing plate 121 and the outer pressing plate 122 are ensured, avoiding gas leakage. The design of the studs 141 and the nuts 142 makes the sealing device easy to maintain and inspect, and once problems are found, they can be quickly repaired or replaced. The sealing device can be adjusted according to the thickness of different cabin wall panels 100 and the size of the process hole 110, and is applicable to various ship and ocean engineering construction scenarios.

[0034] Furthermore, as Figures 1-3 shown, the sealing ring 130 surrounds the outside of the process hole 110, and the sealing ring 130 is compressed between the inner sealing plate 121 and the outer pressing plate 122. The design of the sealing ring 130 greatly enhances the sealing performance of the sealing device. By compressing the sealing ring 130, it closely fits around the process hole 110, effectively preventing gas or liquid leakage.

[0035] Furthermore, as Figures 1-3As shown, the cabin wall panel 100 is provided with reinforcing frame materials 170 for support, so as to further strengthen the hardness of the cabin wall panel 100 and the surrounding of the process hole 110 .

[0036] In another embodiment of the present invention, Figures 1-4 As shown, a method for sealing a cabin compression process hole is also provided, comprising the following steps:

[0037] S100: Design the dimensions of the outer pressure plate 122 and the inner sealing plate 121 of the process hole 110 plugging tool according to the size and shape of the process hole 110 and determine the position and size of the bolt holes on the outer pressure plate 122. After the design is completed, draw the drawing and cut the material;

[0038] S200: Install the stud 141 on the inner sealing plate 121 according to the size of the process hole 110 and weld it firmly;

[0039] S300: Determine the size of the sealing ring 130 according to the installation position of the stud 141 on the inner sealing plate 121, manufacture the sealing ring 130 and install it on the inner sealing plate 121;

[0040] S400: cleaning debris near the edge of the process hole 110 to avoid blocking the installation of the tooling or affecting the tightness of the tooling after installation;

[0041] S500: Install the tooling for sealing the process hole 110. First, install the inner sealing plate 121 with the stud 141 and the sealing ring 130 on the process hole 110 in the cabin; secondly, install the outer pressure plate 122 outside the cabin in alignment with the stud 141; finally, install the nut outside the cabin and tighten the nut in sequence to achieve progressive tightening;

[0042] S600: Check the tightness of the process hole 110 after plugging, and perform a compressed air test after the tightness is intact.

[0043] Specifically, the installation and disassembly of the process hole 110 plugging tool is convenient and quick, and can be completed with a wrench without the need for hot welding, which saves time in transferring equipment and pulling wires and improves installation efficiency. The process hole 110 plugging tool adopts a sealing rubber ring, which has good sealing performance after being squeezed and installed by external force, and has a high pass rate during the compressed air test. There is no need to repeatedly weld and plug the process hole 110, which improves the efficiency and quality of the compressed air test, and also improves the pass rate of the tightness test. The inner sealing plate 121 of the process hole 110 plugging tool is larger than the process hole 110. After compressed air, the inner sealing plate 121 will be tightly attached to the motherboard of the process hole 110. After installation, it is stable and reliable, with good safety, which greatly reduces the safety risk of the compressed air test.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable sealing device for a technological hole in a ship's cabin, which acts on the cabin wall panel (100). A through technological hole (110) is provided on the cabin wall panel (100), and it is characterized in that, It includes a matching component (120), a sealing ring (130), and a quick locking mechanism (140). The matching component (120) includes an inner sealing plate (121) and an outer pressing plate (122) that match each other. The sealing ring (130) is arranged in a surrounding manner on the inner sealing plate (121). The inner sealing plate (121) is located inside the cabin wall panel (100) and installed on the process hole (110). The outer pressing plate (122) is located outside the cabin wall panel (100) and installed on the process hole (110), and is locked and connected to the inner sealing plate (121) through the quick locking mechanism (140).

2. The detachable sealing device for the process hole of the ship cabin according to claim 1, characterized in that The quick locking mechanism (140) includes a stud (141) and a nut (142). A plurality of the studs (141) are arranged in a surrounding manner on the inner sealing plate (121), and the studs (141) extend out from the process hole (110). The outer pressing plate (122) is sleeved inside the studs (141), and the nut (142) is threadedly connected to the extended studs (141) to lock the inner sealing plate (121) and the outer pressing plate (122).

3. The detachable sealing device for the process hole of the ship cabin according to claim 1, characterized in that The sealing ring (130) encloses the outside of the process hole (110), and the sealing ring (130) is compressed between the inner sealing plate (121) and the outer pressing plate (122).

4. The detachable sealing device for the technological hole of the ship cabin according to claim 1, characterized in that, Reinforcing stiffeners (170) for support are provided on the cabin wall panel (100).

5. A method for plugging a process hole for cabin compressed air, comprising the detachable sealing device for the process hole of the ship cabin as described in any one of the above claims 1-4, characterized in that, It also includes the following steps: S100: Design the sizes of the outer pressing plate and the inner sealing plate of the process hole plugging tooling according to the size and shape of the process hole, determine the positions and sizes of the bolt holes on the outer pressing plate, and perform drawing and blanking after the design is completed; S200: Install studs on the inner sealing plate according to the process hole size and weld them firmly; S300: Determine the size of the sealing ring according to the stud installation position on the inner sealing plate, manufacture the sealing ring and install it on the inner sealing plate; S400: Clean the sundries near the edge of the process hole to avoid blocking the installation of the tooling or affecting the airtightness after the tooling is installed; S500: Install the process hole plugging tooling. First, install the inner sealing plate with studs and the sealing ring on the process hole inside the cabin; secondly, align the studs and install the outer pressing plate outside the cabin; finally, install nuts outside the cabin and tighten the nuts in sequence to achieve progressive fastening; S600: Check the airtightness of the process hole after plugging, and conduct a pneumatic test after the airtightness is intact.

Images