CN219833658U

CN219833658U - Fixed cable connecting pipe

Info

Publication number: CN219833658U
Application number: CN202321214391.8U
Authority: CN
Inventors: 陶然; 胡民强; 霍春香; 陈捷; 黄飞
Original assignee: Jiangnan Shipyard Group Co Ltd
Current assignee: Jiangnan Shipyard Group Co Ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-13
Anticipated expiration: 2033-05-18

Abstract

The utility model provides a fixed cable connecting pipe, which is provided with a main pipe, a branch pipe and a connecting pipe, wherein all sections of pipelines are in sealing and fixed connection, so that the cable from underwater to above a waterline can be fixed and protected, and the fixed cable connecting pipe is suitable for equipment without an independent equipment cabin and with requirements on tightness; the pressure test and the sealing test can be carried out on the fixed cable connecting pipe after the cable is laid through the branch pipe, so that the water can not leak into the pipe when equipment is damaged or broken, and the electricity utilization safety and the ship navigation safety are ensured. Meanwhile, the bent pipe is arranged, so that interference between a ship body structure and other equipment during cable laying is effectively avoided, the installation work is flexible and convenient, and the application range of the fixed cable connecting pipe is enlarged; the quartz sand is filled into the fixed cable connecting pipe through the branch pipe, so that the fixed cable can be prevented from shaking, the reliability of the electrical performance of the equipment is improved, and the heat dissipation can be performed in time to improve the service life of the cable.

Description

Fixed cable connecting pipe

Technical Field

The utility model relates to the technical field of ship construction, in particular to a fixed cable connecting pipe.

Background

Each vessel is equipped with a log and a depth finder for measuring voyage speed, accumulating voyage and measuring water depth. It can be said that the "eyes" and "ears" of the ship are very important devices in the navigation of the ship, and once damaged, the ship can not normally navigate.

The log and the depth finder are arranged below the waterline of the bow of the ship, and the requirement of equipment installation indicates that the random cable of the transducer of the log must be independently laid through a pipe, and the other end of the pipe must be higher than the waterline by more than 1 m. At present, the pressure of the pipe can be measured only before the cable is laid, the pressure of the pipe cannot be tested after the cable is laid, and the conditions for pressure test and sealing test are 0.2MPa for 30min so as to ensure that the seawater does not leak in the cable pipe even after the transducer of the log is damaged. It is therefore necessary to provide a fixed cable connection pipe which can perform pressure test and tightness test after the cable is installed, ensuring that seawater cannot leak into the connection pipe.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a fixed cable connection tube for solving the problem that the pressure sealing test cannot be performed after the cable laying is completed in the prior art.

To achieve the above and other related objects, the present utility model provides a fixed cable connection pipe comprising at least:

the inner pipe diameter of the main pipe is larger than the outer diameter of the cable to be laid so as to enable the cable to pass through;

one end of the branch pipe is communicated and fixed on one side above the main pipe at a preset angle, the other end of the branch pipe is detachably, hermetically and fixedly connected with the plugging piece, and the top height of the branch pipe is higher than that of the main pipe;

the connecting pipe comprises a top connecting pipe and a bottom connecting pipe which are communicated with the inside of the main pipe, one end of the top connecting pipe is detachably and hermetically fixed to the top end of the main pipe, one end of the bottom connecting pipe is detachably and hermetically fixed to the bottom end of the main pipe, and cable sealing fixing pieces are arranged at the other ends of the top connecting pipe and the bottom connecting pipe.

Preferably, the pipe bending device further comprises a pipe bending device which is communicated with the main pipe and the inside of the connecting pipe, and the pipe bending device is detachably and hermetically fixed between the main pipe and the bottom connecting pipe.

Preferably, a pair of flanges are required to be arranged on the main pipe and the bent pipe at intervals of a preset distance so as to divide the corresponding pipeline into a plurality of sections of communicated pipelines.

Preferably, the main pipe is fixed with the top connecting pipe, the main pipe is fixed with the elbow pipe, the elbow pipe is fixed with the bottom connecting pipe through a flange and a flange bolt, and a sealing structure is arranged between the flanges.

Preferably, the main pipe, the branch pipe, the connecting pipe and the bent pipe are seamless steel pipes.

Preferably, the bending angle of the bent pipe ranges from 120 degrees to 160 degrees.

Preferably, the predetermined angle range is 30-45 degrees.

Preferably, the plugging piece is a blind flange, the blind flange and the branch pipe are fixed through a flange and a flange bolt, and a sealing structure is arranged between the blind flange and the flange.

Preferably, the cable sealing fixture comprises a stuffing box.

Preferably, quartz sand is filled between the inner wall of the pipeline and the cable in the communication pipeline from the main pipe to the bottom connecting pipe.

As described above, the fixed cable connecting pipe of the present utility model has the following beneficial effects: the main pipe, the branch pipe and the connecting pipe are arranged, all the sections of pipelines are fixedly connected in a sealing way, so that the cable from the water to the position above the waterline can be fixed and protected, and the device is suitable for equipment without an independent equipment cabin and with requirements on tightness; the pressure test and the sealing test can be carried out on the fixed cable connecting pipe after the cable is laid through the branch pipe, so that the water can not leak into the pipe when equipment is damaged or broken, and the electricity utilization safety and the ship navigation safety are ensured. Meanwhile, the bent pipe is arranged, so that interference between a ship body structure and other equipment during cable laying can be effectively avoided, the installation work is flexible and convenient, and the application range of the fixed cable connecting pipe is enlarged; the bent pipe is detachably connected with the main pipe, and a pair of flanges are arranged at intervals of a preset distance, so that the maintenance is convenient; radiating substances such as quartz sand can be poured into the fixed cable connecting pipe through the branch pipe, so that the fixed cable can be prevented from shaking, the reliability of the electrical performance of the equipment can be improved, and timely heat dissipation can be performed to prolong the service life of the cable.

Drawings

Fig. 1 is a schematic structural view of a fixed cable connection pipe according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a main pipe and branch pipe connection structure according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a sealing test performed after fixing a cable connection pipe and laying a cable according to an embodiment of the present utility model.

Description of element reference numerals

1. Main pipe

2. Elbow pipe

3. Branch pipe

4. Top connecting pipe

5. Bottom connecting pipe

6. Welded stuffing box

7. Flange

8. Blind flange

101. Underwater installation

102. Vacuum pump

103. Cable with improved cable characteristics

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

In the context of the present utility model, a structure described as a first feature being "on" a second feature may include embodiments where the first and second features are formed in direct contact, as well as embodiments where additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

Please refer to fig. 1. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

The utility model provides a fixed cable connecting pipe which at least comprises a main pipe 1, a branch pipe 3 and connecting pipes. Wherein the main pipe 1 is used for cabling 103 to enable electrical connection of the cable 103 with the underwater equipment 101, said underwater equipment 101 including but not limited to a log and a depth finder. Of course, the fixed cable connection tube of the present utility model can also be used in other devices where tightness of the cable connection tube is required. Therefore, the inner pipe diameter of the main pipe 1 needs to be correspondingly set according to the outer diameter of the cable to be laid, so that the inner pipe diameter of the main pipe 1 is ensured to be larger than the outer diameter of the cable to be laid, and the cable 103 to be laid can pass through smoothly. It should be noted that, unless otherwise specified, the pipe section is connected to the apparatus in the present utility model in a direction of lower or bottom and is connected to the apparatus in a direction of upper or top.

As shown in fig. 2, a branch pipe 3 is fixedly connected to one side above the main pipe 1, and the fixing manner includes, but is not limited to, welding. In detail, one end of the branch pipe 3 is fixed at a predetermined angle on one side above the branch pipe 1 and the inner pipes thereof are connected at the connection position, and the top of the branch pipe 3 is higher than the top of the main pipe 1 after fixing, so as to facilitate the subsequent pressure test and sealing test of the communication pipeline where the main pipe 1 is located through the branch pipe 3, or the cable fixing and cable heat dissipation by injecting heat dissipation substances such as quartz sand into the communication pipeline where the main pipe 1 is located. The other end of the branch pipe 3 is detachably and sealingly fixed to a closure member, including but not limited to a blind flange 8, to ensure that the subsequently installed fixed cable connection pipe is sealed. In this embodiment, the plugging member is a blind flange 8, the blind flange 8 is connected and fixed with the branch pipe 3 through a flange 7 and a flange bolt, and a sealing structure (not shown), such as a rubber gasket, is arranged between the flange 7 and the blind flange 8 to ensure tightness. After the blind flange 8 at the end part is disassembled, as shown in fig. 3, the vacuum pump 102 can be connected with the branch pipe 3 to perform pressure test and sealing test on the fixed cable connecting pipe; after the sealing test is completed, quartz sand (not shown) can be filled into the branch pipe 3 to fill the gap between the inner wall of the pipeline and the cable 103 in the communication pipeline where the main pipe 1 is located, so that the cable 103 can be fixed, and the heat dissipation effect can be achieved.

As shown in fig. 1, the top of the main pipe 1 is provided with a top connecting pipe 4 with communicated inside, one end of the top connecting pipe 4 is detachably, hermetically and fixedly connected with the top of the main pipe 1, and the other end is provided with a cable sealing fixing piece for sealing and fixing the laying cable 103. Correspondingly, the bottom of the main pipe 1 is provided with a bottom connecting pipe 5 with the inside communicated, one end of the bottom connecting pipe 5 is detachably, hermetically and fixedly connected with the bottom of the main pipe 1, and the other end of the bottom connecting pipe 5 is provided with a cable sealing fixing piece for sealing and fixing the laying cable 103. The cable sealing fixing member includes, but is not limited to, a stuffing box, in this embodiment, a welded stuffing box 6 is adopted, so that after the cable is laid, the fixed cable connecting pipe can keep sealing, and water is prevented from entering the pipe after the underwater equipment 101 is damaged.

As an example, the pipe bending device further comprises a pipe bending 2 communicated with the main pipe 1 and the connecting pipe, and the pipe bending 2 is detachably and hermetically fixed between the main pipe 1 and the bottom connecting pipe 5. Since the bottom of the hold has many hull structures and other equipment, in order to bypass them, the bent pipe 2 is designed as an angled pipe with a bending angle in the range of 120-160 degrees, preferably 135 degrees. As shown in fig. 1, one bent pipe 2 is connected between the main pipe 1 and the bottom connecting pipe 5, but in practice, the number of bent pipes may be 2 or more than 2 according to practical requirements, and according to the distribution of the hull structure and other devices, part of the bent pipes 2 may be located between different sections of the main pipe 1, and part of the bent pipes 2 may be located between the bottom of the main pipe 1 and the bottom connecting pipe 5, specifically, set according to practical requirements, which is not limited herein.

As an example, the main pipe 1 and the bent pipe 2 are provided with a pair of flanges at intervals of a predetermined distance to form a multi-section communication pipeline. According to the design specification requirement of the ship, the cable 103 is convenient to overhaul, a pair of flanges is required to be arranged every three meters when the cable pipeline is designed, and the upper pipeline and the lower pipeline are fixedly connected through the flanges 7 and flange bolts. Therefore, when the length of the main pipe 1 exceeds 3 meters, a pair of flanges needs to be arranged every 3 meters to divide the pipeline into a plurality of sections of communicated pipelines, and when the length of the bent pipe 2 exceeds 3 meters, a pair of flanges needs to be arranged every 3 meters. Of course, if different cable lines require other distances, the predetermined distances between the main pipe 1 and the bent pipe 2 need to be set correspondingly according to relevant regulations, and the method is not limited herein.

As an example, the main pipe 1 and the top connecting pipe 4, the main pipe 1 and the elbow pipe 2, and the elbow pipe 2 and the bottom connecting pipe 5 are all fixed by flanges 7 and flange bolts, and sealing structures (not shown) are provided between the flanges 7, and the sealing structures include, but are not limited to, rubber gaskets. So ensure that fixed cable connecting pipe is sealed pipeline, can block the entering of sea water etc. and guarantee the safety of using electricity and boats and ships navigation.

As an example, the predetermined angle range is 30-45 degrees. The branch pipe 3 forms an included angle with the upper part of the main pipe 1, the included angle is 30-45 degrees, preferably 30 degrees, so that heat dissipation substances such as quartz sand and the like can be injected into a communication pipeline where the main pipe 1 is located through the branch pipe 3 in the later stage.

As an example, the main pipe 1, the branch pipe 3, the connecting pipe, and the elbow pipe 2 are seamless steel pipes.

The utility model also provides an operation method for fixing the cable connection pipe cabling, which comprises the following specific operation steps:

s1, installing the fixed cable connecting pipe according to a pipe system installation diagram. Before installation, each pipe section should be subjected to dust removal, rust removal and oil stain removal treatment, so that corrosion of the inside is prevented, and the service life of the fixed cable connecting pipe is prolonged; the pipe sections are detachably, hermetically and tightly fastened through the flanges 7, sealing structures among the flanges and flange bolts.

S2, cabling is carried out, and a cable 103 sequentially passes through the top connecting pipe 4, the main pipe 1, the bent pipe 2 and the bottom connecting pipe 5 to be connected with underwater equipment 101 such as a log depth finder and the like;

and S3, sealing the cable 103 after the cable is laid, respectively laying welding type stuffing boxes 6 at the top end of the top connecting pipe 4 and the bottom end of the bottom connecting pipe 5, and installing blind flanges 8 at the end parts of the branch pipes 3.

S4, performing tightness test, removing the blind flange 8 at the end of the branch pipe 3, and installing the vacuum pump 102 through a connecting pipeline. In the tightness test, the vacuum pump 102 is used for pumping negative pressure of 0.2Mpa and keeping for 30min, if the reading is unchanged during the time, the tightness test is passed; if the air leakage occurs, the air leakage point needs to be detected, and the fixed cable connecting pipe needs to be reinstalled if necessary.

After the S5 tightness test is passed, quartz sand is filled in through the branch pipe 3 to fill the main pipe 1, the bent pipe 2 and the bottom connecting pipe 5, and the quartz sand can fix the cable 103 and play a role in heat dissipation.

And S6, finally, reinstalling a blind flange 8 at the end part of the branch pipe 3 to block the pipeline so as to ensure the tightness of the whole fixed cable connecting pipe.

In summary, the utility model provides a fixed cable connecting pipe, which is provided with a main pipe, a branch pipe and a connecting pipe, wherein each section of pipeline is in sealed and fixed connection, so that the cable from underwater to above a waterline can be fixed and protected, and the fixed cable connecting pipe is suitable for equipment without an independent equipment cabin and with a requirement on tightness; the pressure test and the sealing test can be carried out on the fixed cable connecting pipe after the cable is laid through the branch pipe, so that the water can not leak into the pipe when equipment is damaged or broken, and the electricity utilization safety and the ship navigation safety are ensured. Meanwhile, the bent pipe is arranged, so that interference between a ship body structure and other equipment during cable laying can be effectively avoided, the installation work is flexible and convenient, and the application range of the fixed cable connecting pipe is enlarged; the bent pipe is detachably connected with the main pipe, and a pair of flanges are arranged at intervals of a preset distance, so that the maintenance is convenient; radiating substances such as quartz sand can be poured into the fixed cable connecting pipe through the branch pipe, so that the fixed cable can be prevented from shaking, the reliability of the electrical performance of the equipment can be improved, and timely heat dissipation can be performed to prolong the service life of the cable. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A fixed cable connection tube, the fixed cable connection tube comprising at least:

2. The fixed cable connecting pipe of claim 1, further comprising an elbow in communication with the main pipe and the interior of the connecting pipe, the elbow being removably sealed between the main pipe and the bottom connecting pipe.

3. The fixed cable connecting pipe of claim 2, wherein a pair of flanges are provided at predetermined intervals for dividing the corresponding pipeline into a plurality of segments of connected pipelines.

4. The fixed cable connecting pipe of claim 2, wherein the main pipe and the top connecting pipe, the main pipe and the elbow, and the elbow and the bottom connecting pipe are all fixed by flanges and flange bolts, and sealing structures are arranged between the flanges.

5. The fixed cable connecting pipe of claim 2, wherein the main pipe, the branch pipe, the connecting pipe, and the elbow pipe are seamless steel pipes.

6. The fixed cable connecting pipe of claim 2, wherein the bend has a bend angle in the range of 120-160 degrees.

7. The fixed cable connecting tube of claim 1, wherein the predetermined angle range is 30-45 degrees.

8. The fixed cable connecting pipe of claim 1, wherein the blocking member is a blind flange, the blocking member is fixed with the branch pipe through a flange and a flange bolt, and a sealing structure is arranged between the blind flange and the flange.

9. The stationary cable connection pipe of claim 1, wherein the cable seal fixture includes a stuffing box.

10. The stationary cabling pipe according to any one of claims 1, 2, further comprising: quartz sand is filled between the inner wall of the pipeline and the cable in the communication pipeline from the main pipe to the bottom connecting pipe.