CN111522110A

CN111522110A - Sealing device for optical cable penetrating liquid tank

Info

Publication number: CN111522110A
Application number: CN202010365093.3A
Authority: CN
Inventors: 李啸峰; 丁筠; 赵振华
Original assignee: Jiangnan Shipyard Group Co Ltd
Current assignee: Jiangnan Shipyard Group Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-08-11
Anticipated expiration: 2040-04-30
Also published as: CN111522110B

Abstract

The application specifically relates to a sealing device of liquid cabin is worn to optical cable, includes: two communicating pipes, two communicating pipes communicate at the tank top with the interval, the inside cavity that has of communicating pipe, the bottom and the tank top intercommunication of cavity, the top of cavity is fixed with a protection cover, the fretwork has a intercommunication chamber in the protection cover, it has an optical cable to alternate at least in intercommunication chamber and the cavity, crosses the cabin along the tank top by two communicating pipe guide optical cables, avoids crossing the hole in cabin under liquid, greatly reduces the sealed grade of hole, solves the expensive nature of sealing material, avoids construction process's complexity, reduces overall cost, carries out later maintenance along the top, and the convenience is higher.

Description

Sealing device for optical cable penetrating liquid tank

Technical Field

The application relates to the field of shipbuilding, in particular to a sealing device for an optical cable penetrating liquid tank.

Background

In the manufacturing process of a ship, the optical cable is generally laid in the ship, and the optical cable is generally laid in a mode of penetrating through a bulkhead. The penetration is carried out on the liquid tank loaded with liquid, and the penetrating hole needs to be sealed.

Because the sealing of the hole is under the liquid level, the sealing grade requirement of the hole is higher, the sealing material of the hole has special requirements, the sealing construction process is also more complex, the material is expensive, the construction cost is high, and the later maintenance of the optical cable is also extremely inconvenient.

Disclosure of Invention

The purpose of the application is: the sealing grade of the hole is reduced, the special requirement of the sealing material is met, the complexity of the construction process is overcome, the overall cost is reduced, and the convenience of later-stage optical cable maintenance is improved.

The purpose of this application is accomplished through following technical scheme, a sealing device of liquid cabin is worn to optical cable, and it includes: the liquid tank comprises two communicating pipes, wherein the two communicating pipes are communicated with the top of the liquid tank at intervals, a cavity is formed in the communicating pipes, the bottom of the cavity is communicated with the top of the liquid tank, a protective cover is fixed at the top of the cavity, a communicating chamber is hollowed in the protective cover, and an optical cable is at least inserted in the communicating chamber and the cavity.

Preferably, the cavity is filled with a sealing member, and the optical cable is inserted into the sealing member.

Preferably, the two communicating pipes are fixedly connected with flanges.

Preferably, the flange comprises a first flange and a second flange which are arranged on the communication pipes on two sides of the sealing element.

Preferably, the two communicating pipes respectively comprise a first pipe fitting and a second pipe fitting, the first pipe fitting and the first flange are fixedly communicated with the lower portion of the communicating pipe, and the second pipe fitting and the second flange are fixedly communicated with the upper portion of the communicating pipe.

Preferably, the sealing element is provided with a sealing frame with an annular cross section, the sealing frame is filled with composite filler with a fan-shaped cross section, and the optical cable penetrates through the composite filler and extends to the liquid tank.

Preferably, sealing grease is coated between the annular side wall of the optical cable and the composite filler, and the sealing grease is also coated between the composite fillers.

Preferably, the two communicating pipes are fixed on a deck, and the deck is fixed on the top of the liquid tank.

Preferably, a bulkhead is fixed in the liquid tank between the two communication pipes, and the bulkhead divides the liquid tank to form a first liquid tank and a second liquid tank.

Preferably, a handhole cover is fixed on the side wall opening of the protective cover.

Compared with the prior art, the application has the following obvious advantages and effects:

1. the optical cable is laid at the top of the sealing device to penetrate through the cabin, so that the optical cable and the hole are prevented from being positioned under the liquid level, the sealing device is effectively prevented from contacting with liquid, the sealing grade of the hole is greatly reduced, reliable sealing can be realized by adopting conventional sealing materials, the special requirements of the sealing materials are avoided, the material cost is reduced, and the durability after sealing is higher.

2. Install sealing device along the deck at tank top, mounting flange realizes detachable and connects on communicating pipe in sealing device, greatly reduces the construction degree of difficulty to installation safety cover guarantees the protection to the optical cable on communicating pipe, and sets up the convenience that the optical cable later maintenance was greatly improved to the detachable handhole door.

Drawings

Fig. 1 is a schematic view of the installation of the sealing device with the tank according to the present application.

Fig. 2 is a view of the actual installation of the sealing device according to the present application.

Fig. 3 is an enlarged cross-sectional view taken at the location a-a in fig. 2 of the present application.

Parts list

100	Sealing device
		1	Liquid tank
2	Bulkhead
		3	Deck board
4	Optical cable
		5	Sealing element
6	Communicating pipe
		7	Flange
8	Protective cover
		9	Hand hole cover
11	First liquid tank
		12	Second liquid tank
51	Composite filling material
		52	Sealing grease
53	Sealing frame
		61	First pipe fitting
62	Second pipe fitting
		71	First flange
72	Second flange
		81	Communicating cavity

Detailed Description

Specific embodiments thereof are described below in conjunction with the following description and the accompanying drawings to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the invention, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.

Fig. 1 to 3 show an embodiment of the sealing device for a cable transit tank according to the present application.

As shown in fig. 1, a sealing device 100 for a cable-through tank includes: the two communicating pipes 6 are communicated on the deck 3 at the top of the liquid tank 1 at intervals, the deck 3 is used for fixing and sealing the top of the liquid tank 1, the construction on the deck 3 can greatly improve the installation convenience of the two communicating pipes 6 and facilitate the operations of laying, overhauling and the like of the optical cable 4 from the deck 3 to the inner liquid tank 1,

a welded protective cover 8 is fixed to the tops of the two communication pipes 6, and the section of the protective cover 8 in fig. 1 is rectangular, for example: the whole protective cover 8 can be cuboid, a communicating cavity 81 is formed in the protective cover 8 in a hollow mode, a communicating structure is formed by the communicating cavity 81, the cavity and the liquid tank 1 in a combined mode, the communicating structure is fixed to form the whole sealing device 100, and then the optical cable 4 can be laid in the sealing device 100.

The cavity of the sealing device 100 is filled with a sealing member 5, the cavity is further sealed by the sealing member 5, and the optical fiber cable 4 is inserted through the sealing member 5 into the liquid tank 1, and the sealing member 5 forms a layered sealing structure in the sealing device 100.

The installation position of the sealing element 5 in the cavity is about 200mm higher than the surface of the deck 2, an air column can be formed in the cavity of the communicating pipe 6 at the lower side of the sealing element 5, the contact between the sealing element 5 and liquid can be effectively isolated by the air column, and the sealing grade of the sealing device 100 is further improved.

In construction, a hole is formed in the deck 3 so that the communication pipe 6 is inserted into the liquid tank 1, and the communication pipe 6 is stably installed on the upper surface and the lower surface of the deck 3 by double-sided welding.

The cylindrical cavity is arranged in the communicating pipe 6, the bottom end of the cavity is communicated with the top of the liquid tank 1, the optical cable 4 is inserted into the top end of the cavity, and when the optical cable 4 penetrates through the cavity of the communicating pipe 6, the sealing element 5 is filled in the cavity to keep sealing.

As shown in fig. 1, a bulkhead 2 is fixed vertically in the middle of the figure, and the liquid tank 1 is divided into two liquid tanks 1 by the bulkhead 2. The two liquid tanks 1 are respectively a first liquid tank 11 on the right side and a second liquid tank 12 on the left side in the figure 1, the optical cable 4 penetrates into the vertex angle of the second liquid tank 12 on the left side from the vertex angle of the first liquid tank 11 on the right side in the figure 1, and the two communicating pipes 6 assist the optical cable 4 to penetrate along the deck 3.

Therefore, two communication pipes 6 are welded along the deck 3 on both side tops of the bulkhead 2, and the two communication pipes 6 are respectively installed on the left and right sides near the welding position of the bulkhead 2 and the deck 3.

In the construction specifically, optical cable 4 alternates and be the turn of "n" font by two communicating pipes 6 tops, leads to the damage because of the turn for avoiding optical cable 4, sets up the interval of two communicating pipes 6 and equals approximately to 2 times optical cable 4 turning radius. The top ends of the cavities of the two communicating pipes 6 are fixedly communicated with a protective cover 8 with an inner hollow part, the inner hollow part of the protective cover 8 is used for space accommodation of the turning of the optical cable 4, and the cuboid shell of the protective cover 8 protects the outer part of the optical cable 4.

It should be noted that, in order to guarantee that communicating pipe 6 is convenient to construct on deck 3, guarantee that later stage optical cable 4 is convenient for install, install detachable flange 7 respectively on two communicating pipes 6, utilize the detachability of flange 7 and bolt, nut, can weld the bottom of communicating pipe 6 on deck 3 in advance, fix safety cover 8 in the bottom of communicating pipe 6 by flange 7 and temporarily protect, when waiting that later stage optical cable 4 to lay, pull down flange 7, can pack sealing member 5 in communicating pipe 6 and carry out the leakproofness can.

As shown in fig. 2, in the embodiment of the present application, the communication pipe 6 includes three-segment structure at upper, middle and lower positions, and the three-segment structure is matched with the bolt and the nut by the flange 7 to realize the detachable fixation of the communication pipe 6, so that the preassembly of the communication pipe 6 at the early stage is realized, the installation and the detection of the sealing element 5 in the communication pipe 6 are ensured during the use, and the detection and the replacement of the optical cable 4 in the communication pipe 6 at the later stage are also convenient. Wherein, the first pipe fitting 61 and the first flange 71 at the lower section, namely the lower part, of the communicating pipe 6 are fixedly welded and communicated; the second pipe fitting 62 and the second flange 72 on the upper section, i.e. the upper part, of the communicating pipe 6 are fixedly welded and communicated; packing 5 is filled in the intermediate portion of communication pipe 6.

The optional installation sealing member 5 is installed in the three-section structure installation of the communicating pipe 6 for sealing, so that the construction is convenient and the later maintenance is more convenient.

Firstly, a first pipe fitting 61 at the bottom of the communicating pipe 6 is pre-installed, the first pipe fitting 61 is fixed with a deck 3 at the top of the liquid tank 1, and the fixing adopts a double-sided welding mode, so that the water tightness of the structure can be ensured to be high;

secondly, the second pipe 62 at the upper part of the communicating pipe 6 is welded and fixed with the protective cover 8;

finally, the communication pipe 6 having the packing 5 attached to the middle portion thereof is connected between the first pipe 61 and the second pipe 62 via the flange 7.

As can be seen from the upper structure of fig. 2, a handhole cover 9 is fixed on the side wall of the protective cover 8, and the handhole cover 9 is similar to an oval structure, so that the handhole cover can be operated by hands without scratching during construction. The edge of the handhole cover 9 is sealed with the side wall of the protective cover 8, and the handhole cover and the protective cover are inserted and fixed through bolts.

As shown in fig. 3, in the embodiment of the present invention, the sealing material 5 has a sealing frame 53 having an annular cross section, a plurality of pieces of composite filler 51 having a fan-shaped cross section are filled in the sealing frame 53, and the plurality of pieces of composite filler 51 are bound by the sealing frame 53 to form a columnar whole, thereby sealing the cavity of the communication pipe 6.

It should be noted that, composite filler 51 is sealed in the cavity of communication pipe 6, and optical cable 4 extends into liquid tank 1 through composite filler 51, in order to ensure the sealing of the whole connection structure, sealing grease 52 is coated between the annular side wall of optical cable 4 and composite filler 51, and between composite fillers 51, and liquid sealing grease 52 flows to each gap to be solidified, so as to ensure the high sealing performance of the whole connection structure.

Since any modifications, equivalents, improvements, etc. made within the spirit and principles of the application may readily occur to those skilled in the art, it is intended to be included within the scope of the claims of this application.

Claims

1. A sealing device for a cable passing through a liquid tank is characterized by comprising: two communicating pipes (6), two communicating pipes (6) communicate at the tank (1) top at interval, communicating pipe (6) inside has the cavity, the bottom and tank (1) top intercommunication of cavity, the top of cavity is fixed with a protection cover (8), the fretwork has a intercommunication chamber (81) in protection cover (8), it has an optical cable (4) to alternate at least in intercommunication chamber (81) and the cavity.

2. The apparatus for sealing a fiber optic cable transit tank of claim 1, wherein: the cavity is filled with a sealing element (5), and the optical cable (4) is inserted into the sealing element (5).

3. The apparatus for sealing a fiber optic cable transit capsule of claim 2, wherein: and flanges (7) are fixedly connected to the two communicating pipes (6).

4. A device for sealing a cable transit tank as defined in claim 3, wherein: the flange (7) comprises a first flange (71) and a second flange (72) which are arranged on the communicating pipes (6) at the two sides of the sealing element (5).

5. The apparatus for sealing a fiber optic cable transit tank of claim 4, wherein: the two communicating pipes (6) respectively comprise a first pipe (61) and a second pipe (62), the first pipe (61) and the first flange (71) are fixedly communicated with the lower portion of the communicating pipe (6), and the second pipe (62) and the second flange (72) are fixedly communicated with the upper portion of the communicating pipe (6).

6. A device for sealing a cable transit tank as claimed in claim 1 or 2, wherein: the sealing element (5) is provided with a sealing frame (53) with an annular cross section, the sealing frame (53) is filled with composite filling materials (51) with a fan-shaped cross section, and the optical cable (4) penetrates through the composite filling materials (51) and extends to the liquid tank (1).

7. The apparatus for sealing a fiber optic cable transit tank of claim 6, wherein: sealing grease (52) is coated between the annular side wall of the optical cable (4) and the composite filler (51), and sealing grease (52) is also coated between the composite filler (51).

8. The apparatus for sealing a fiber optic cable transit tank of claim 1, wherein: the two communicating pipes (6) are fixed on the deck (3), and the deck (3) is fixed at the top of the liquid tank (1).

9. The apparatus for sealing a fiber optic cable transit tank of claim 1, wherein: a cabin wall (2) is fixed in the liquid cabin (1) between the two communicating pipes (6), and the cabin wall (2) divides the liquid cabin (1) to form a first liquid cabin (11) and a second liquid cabin (12).

10. The apparatus for sealing a fiber optic cable transit capsule of claim 9, wherein: and a handhole cover (9) is fixed on the opening of the side wall of the protective cover (8).