Cabin penetrating device and method for ship fuel cabin temperature sensor cable

Abstract

The invention discloses an auxiliary device for ship fuel cabin temperature sensor cable cabin penetration, the device comprises a cabin penetration module and a stuffing box assembly, the cabin penetration module is used for penetrating into a fuel cabin, a temperature sensor cable penetrates into the fuel cabin through the stuffing box assembly, the cabin penetration module comprises a cabin penetration pipe and a box body, one end of the cabin penetration pipe is communicated with the fuel cabin, and the other end of the cabin penetration pipe is communicated with the stuffing box assembly. The stuffing box assembly comprises a stuffing box body and a sealing structure, the stuffing box assembly is installed on the top of the box body, the stuffing box body is arranged on the top of the box body, the stuffing box body is communicated with the top of the box body, and a temperature sensor cable penetrates into the box body through the stuffing box body. The box body and the cabin penetrating pipe are integrated through penetration welding or double-face welding, the risk of secondary leakage caused by the mode that double flanges are in butt joint in the prior art is avoided, meanwhile, the stuffing box surrounding plates are flexibly disassembled and assembled so that the stuffing box turncaps on the rectangular box body can be screwed down conveniently, and gas leakage on the side faces cannot be generated.

Description

Technical Field

[0001] The invention belongs to the technical field of ship construction, and in particular relates to a device and method for passing a cable through a fuel tank temperature sensor of a ship. Background Art

[0002] The gas system of a dual-fuel container ship is the core system of the entire ship and an important symbol of green emission reduction. The use of the most economical and practical LNG as the carrier of the propulsion device breaks the previous drive mode that only relies on the main engine diesel, and further reduces energy consumption. This new process is bound to put forward higher requirements on the structure of the fuel tank. The fuel tank penetration body must not only withstand the low temperature of -163℃, but also meet the needs of the site to meet the simultaneous penetration of multiple temperature sensor cables into the fuel tank penetration. The original 23000TEU and 13000TEU fuel tanks were only arranged with 8 temperature sensors. In the subsequent new 23000TEU replica ship, 88 new temperature sensors were added to the fuel tank to improve the accuracy of the temperature monitoring system (TMS). The increase in quantity directly affects the expansion of the volume ratio of the fuel tank penetration. The original trumpet-shaped penetration can only meet the passage of three temperature sensor cables, and now it is necessary to meet the simultaneous penetration of 36 cables through the rectangular penetration into the fuel tank. The old construction process cannot adapt to the production rhythm under the new situation. Summary of the invention

[0003] The object of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide a device and method for penetrating a cable of a ship fuel tank temperature sensor. The present invention integrates a rectangular box body and a penetration pipe by penetration welding or double-sided welding, thereby avoiding the risk of secondary leakage caused by the previous double flange docking. At the same time, the flexible disassembly and assembly of the stuffing box enclosure facilitates the tightening of the stuffing box screw cap on the rectangular box body, and no side gas leakage will occur.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] An auxiliary device for the penetration of a temperature sensor cable in a ship's fuel tank, the device comprising a penetration module and a stuffing box assembly, the penetration module being used to penetrate into the fuel tank, the temperature sensor cable being penetrated into the fuel tank through the stuffing box assembly, the penetration module comprising a penetration pipe and a box body, one end of the penetration pipe being connected to the fuel tank, and the other end of the penetration pipe being connected to the box body, the stuffing box assembly comprising a stuffing box body and a sealing structure, the stuffing box assembly being mounted on the top of the box body, a plurality of groups of stuffing box assemblies being arranged on the top of the box body, the stuffing box body being connected to the top of the box body, the temperature sensor cable being penetrated into the box body through the stuffing box body, and the sealing structure sealing the temperature sensor cable and the stuffing box body.

[0006] Furthermore, the box body is a hollow rectangular parallelepiped as a whole, one side of the box body is connected to the cabin penetration pipe, and the other end of the box body is provided with a square hole, and a box body baffle is provided at the square hole. The lower end of the box body baffle closes the square hole of the box body, and the upper end of the box body baffle is connected to the stuffing box enclosure, and the stuffing box enclosure is arranged above the box body.

[0007] Furthermore, a sealing structure is arranged inside the stuffing box body. The stuffing box body is in the shape of a hollow cylinder as a whole. One end of the stuffing box body is fixedly connected to the upper part of the box body. A screw cap is arranged at the other end of the stuffing box body. The screw cap is locked with the stuffing box body by a nut. A through hole is arranged in the middle of the screw cap.

[0008] Furthermore, the sealing structure includes a conical flat gasket and a bushing, both of which are conically connected, a conical flat gasket is arranged at the bottom of the screw cap, a Teflon thin flat gasket is arranged between the conical flat gasket and the screw cap, the conical flat gasket is inserted into the bushing, and a Teflon thin flat gasket is arranged at the bottom of the bushing.

[0009] A method for passing a fuel tank temperature sensor cable through a ship, the method specifically comprising the following steps:

[0010] S1, prepare an auxiliary device for the penetration of a temperature sensor cable in a ship fuel tank, the device comprising a penetration module and a stuffing box assembly, the penetration module is used to penetrate into the fuel tank, the temperature sensor cable penetrates into the fuel tank through the stuffing box assembly, the penetration module comprises a penetration pipe and a box body, one end of the penetration pipe is connected to the fuel tank, and the other end of the penetration pipe is connected to the box body, the stuffing box assembly comprises a stuffing box body and a sealing structure, the stuffing box assembly is installed on the top of the box body, a plurality of groups of stuffing box assemblies are arranged on the top of the box body, the stuffing box body is connected to the top of the box body, the temperature sensor cable penetrates into the box body through the stuffing box body, and the sealing structure seals the temperature sensor cable and the stuffing box body;

[0011] S2, according to the number of temperature sensor cables installed, a corresponding number of tank penetration modules are arranged on the upper part of the box body, and the tank penetration pipe is welded and fixed to the hull structure of the fuel tank. After the welding is completed, the tank penetration pipe is subjected to an airtightness test, and then the box body and the tank penetration pipe are welded and fixed;

[0012] S3, seal the square hole of the box body through the box baffle on the outside of the box body, and fix the upper part of the box baffle with the stuffing box enclosure bolts; install the stuffing box assembly on the top end face of the box body, and pass the temperature sensor cable through the stuffing box assembly and into the cabin penetration pipe to complete the penetration of the temperature sensor cable.

[0013] Based on the above technical solution, the present invention patented a device and method for passing a cable through a ship fuel tank temperature sensor through a tank, and achieved the following technical advantages through practical application:

[0014] 1. The cable penetration device for a ship fuel tank temperature sensor of the present invention integrates a rectangular box body and a penetration pipe by penetration welding or double-sided welding, thereby avoiding the risk of secondary leakage caused by the previous double flange docking. At the same time, the flexible disassembly and assembly of the stuffing box enclosure facilitates the tightening of the stuffing box screw cap on the rectangular box body, and no side gas leakage occurs.

[0015] 2. The cable penetration device for a ship fuel tank temperature sensor of the present invention realizes that multiple cables simultaneously pass through the penetration piece into the fuel tank through the setting of the box body. The increase in the volume ratio will further promote the improvement of production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural diagram of a penetration device used in a cable penetration device for a ship fuel tank temperature sensor.

[0017] Figure 2 The present invention is a structural diagram of the installation of a penetration device used in a cable penetration device for a ship fuel tank temperature sensor.

[0018] Figure 3 The present invention is a cross-sectional view of a stuffing box body used in a cable penetration device for a ship fuel tank temperature sensor.

[0019] Figure 4 The present invention is a temperature sensor cable installation diagram for use in a ship fuel tank temperature sensor cable penetration device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] like Figure 1-4 The present invention belongs to an auxiliary device for the penetration of a temperature sensor cable in a ship fuel tank, the device comprises a penetration module and a stuffing box assembly 4, the penetration module is used to penetrate into the fuel tank, the temperature sensor cable 6 penetrates into the fuel tank through the stuffing box assembly 4, the penetration module comprises a penetration pipe 1 and a box body 2, one end of the penetration pipe 1 is connected to the fuel tank, and the other end of the penetration pipe 1 is connected to the box body 2, the stuffing box assembly 4 comprises a stuffing box body 9 and a sealing structure, the stuffing box assembly 4 is installed on the top of the box body 2, a plurality of groups of stuffing box assemblies 4 are arranged on the top of the box body 2, the stuffing box body 9 is connected to the top of the box body 2, the temperature sensor cable 6 penetrates into the box body 2 through the stuffing box body 9, and the sealing structure seals the temperature sensor cable 6 and the stuffing box body 9.

[0022] The box body 2 is a hollow rectangular parallelepiped as a whole. One side of the box body 2 is connected to the cabin penetration pipe 1. The other end of the box body 2 is provided with a square hole, and a box body baffle 3 is provided at the square hole. The lower end of the box body baffle 3 closes the square hole of the box body 2, and the upper end of the box body baffle 3 is connected to the stuffing box enclosure 5, and the stuffing box enclosure 5 is arranged above the box body 2.

[0023] A sealing structure is arranged inside the stuffing box body 9. The stuffing box body 9 is in the shape of a hollow cylinder as a whole. One end of the stuffing box body 9 is fixedly connected to the upper part of the box body 2. A screw cap 7 is arranged at the other end of the stuffing box body 9. The screw cap 7 is locked with the stuffing box body 9 by a nut 8. A through hole is arranged in the middle of the screw cap 7.

[0024] The sealing structure includes a conical flat gasket 12 and a bushing 13, both of which are conically connected. A conical flat gasket 12 is arranged at the bottom of the screw cap 7, a Teflon thin flat gasket 10 is arranged between the conical flat gasket 12 and the screw cap 7, the conical flat gasket 12 is inserted into the bushing 13, and a Teflon thin flat gasket 10 is arranged at the bottom of the bushing 13.

[0025] The Teflon thin flat gasket 10 has a secondary tightness effect; the stuffing box enclosure 5 is reinforced and fixed by two screws on the box baffle 3. When the stuffing box close to the stuffing box enclosure 5 needs to be tightened and it is difficult, the stuffing box enclosure 5 can be removed to facilitate construction.

[0026] A method for passing a fuel tank temperature sensor cable through a ship, the method specifically comprising the following steps:

[0027] S1, prepare an auxiliary device for the penetration of a temperature sensor cable in a ship fuel tank, the device comprising a penetration module and a stuffing box assembly 4, the penetration module is used to penetrate into the fuel tank, the temperature sensor cable 6 penetrates into the fuel tank through the stuffing box assembly 4, the penetration module comprises a penetration pipe 1 and a box body 2, one end of the penetration pipe 1 is connected to the fuel tank, and the other end of the penetration pipe 1 is connected to the box body 2, the stuffing box assembly 4 comprises a stuffing box body 9 and a sealing structure, the stuffing box assembly 4 is installed on the top of the box body 2, a plurality of groups of stuffing box assemblies 4 are arranged on the top of the box body 2, the stuffing box body 9 is connected to the top of the box body 2, the temperature sensor cable 6 penetrates into the box body 2 through the stuffing box body 9, and the sealing structure seals the temperature sensor cable 6 and the stuffing box body 9;

[0028] S2, according to the number of temperature sensor cables 6 installed, a corresponding number of tank penetration modules are arranged on the upper part of the box body 2, and the tank penetration pipe 1 is welded and fixed to the hull structure of the fuel tank. After the welding is completed, the tank penetration pipe 1 is subjected to an airtightness test, and then the box body 2 and the tank penetration pipe 1 are welded and fixed;

[0029] S3, seal the square hole of the box body 2 through the box body baffle 3 on the outside of the box body 2, and the upper part of the box body baffle 3 is bolted and fixed to the stuffing box enclosure 5; install the stuffing box assembly 4 on the top end face of the box body 2, and pass the temperature sensor cable 6 through the stuffing box assembly 4 and into the cabin penetration pipe 1 to complete the penetration of the temperature sensor cable 6.

[0030] When the cable is installed, the Teflon tape 11 is wound around the temperature sensor cable 6, and the cable wrapped with the Teflon tape 11 slowly slides into the conical silicon flat pad to play a fixing role.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An auxiliary device for the cable penetration of a ship fuel tank temperature sensor, characterized in that: The device includes a tank penetration module and a stuffing box assembly, wherein the tank penetration module is used to penetrate into the fuel tank, and the temperature sensor cable penetrates into the fuel tank through the stuffing box assembly, the tank penetration module includes a tank penetration pipe and a box body, one end of the tank penetration pipe is connected to the fuel tank, and the other end of the tank penetration pipe is connected to the box body, the stuffing box assembly includes a stuffing box body and a sealing structure, the stuffing box assembly is installed on the top of the box body, and multiple groups of stuffing box assemblies are arranged on the top of the box body, the stuffing box body is connected to the top of the box body, the temperature sensor cable penetrates into the box body through the stuffing box body, and the sealing structure seals the temperature sensor cable and the stuffing box body.

2. The auxiliary device for passing the cable of a ship fuel tank temperature sensor through the tank according to claim 1, characterized in that: The box body is a hollow rectangular parallelepiped as a whole. One side of the box body is connected to the cabin penetration pipe. The other end of the box body is provided with a square hole. A box body baffle is provided at the square hole. The lower end of the box body baffle closes the square hole of the box body. The upper end of the box body baffle is connected to the stuffing box enclosure. The stuffing box enclosure is arranged above the box body.

3. The auxiliary device for passing the cable of a ship fuel tank temperature sensor through the tank according to claim 1, characterized in that: A sealing structure is arranged inside the stuffing box body. The stuffing box body is in the shape of a hollow cylinder as a whole. One end of the stuffing box body is fixedly connected to the upper part of the box body. A screw cap is arranged at the other end of the stuffing box body. The screw cap is locked with the stuffing box body by a nut. A through hole is arranged in the middle of the screw cap.

4. The auxiliary device for passing the fuel tank temperature sensor cable through the ship according to claim 3, characterized in that: The sealing structure includes a conical flat gasket and a bushing, both of which are conically connected. A conical flat gasket is arranged at the bottom of the screw cap, a Teflon thin flat gasket is arranged between the conical flat gasket and the screw cap, the conical flat gasket is inserted into the bushing, and a Teflon thin flat gasket is arranged at the bottom of the bushing.

5. A method for threading a ship fuel tank temperature sensor cable, characterized in that: The method specifically comprises the following steps: S1, prepare an auxiliary device for the penetration of a temperature sensor cable in a ship fuel tank, the device comprising a penetration module and a stuffing box assembly, the penetration module is used to penetrate into the fuel tank, the temperature sensor cable penetrates into the fuel tank through the stuffing box assembly, the penetration module comprises a penetration pipe and a box body, one end of the penetration pipe is connected to the fuel tank, and the other end of the penetration pipe is connected to the box body, the stuffing box assembly comprises a stuffing box body and a sealing structure, the stuffing box assembly is installed on the top of the box body, a plurality of groups of stuffing box assemblies are arranged on the top of the box body, the stuffing box body is connected to the top of the box body, the temperature sensor cable penetrates into the box body through the stuffing box body, and the sealing structure seals the temperature sensor cable and the stuffing box body; S2, according to the number of temperature sensor cables installed, a corresponding number of tank penetration modules are arranged on the upper part of the box body, and the tank penetration pipe is welded and fixed to the hull structure of the fuel tank. After the welding is completed, the tank penetration pipe is subjected to an airtightness test, and then the box body and the tank penetration pipe are welded and fixed; S3, seal the square hole of the box body through the box baffle on the outside of the box body, and fix the upper part of the box baffle with the stuffing box enclosure bolts; install the stuffing box assembly on the top end face of the box body, and pass the temperature sensor cable through the stuffing box assembly and into the cabin penetration pipe to complete the penetration of the temperature sensor cable.

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