CN113381358A - Underwater junction box with automatic pressure compensation function - Google Patents
Underwater junction box with automatic pressure compensation function Download PDFInfo
- Publication number
- CN113381358A CN113381358A CN202110652391.5A CN202110652391A CN113381358A CN 113381358 A CN113381358 A CN 113381358A CN 202110652391 A CN202110652391 A CN 202110652391A CN 113381358 A CN113381358 A CN 113381358A
- Authority
- CN
- China
- Prior art keywords
- junction box
- shell
- skin
- compensator
- fixed shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940021414 skin shield Drugs 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/081—Bases, casings or covers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
An underwater junction box having an automatic pressure compensation function, comprising: compensator, communicating tube and junction box housing. The compensator is connected as an organic whole through communicating pipe and junction box shell, and communicating pipe and junction box shell's inside looks UNICOM is passed through to the inside of compensator, the compensator includes: a stationary housing, a skin, and a skin shroud; the fixed shell is of a box structure with an opening in one side, a skin covers the opening of the fixed shell, the fixed shell is connected with the skin in a sealing mode, and the cover plate on the opening side of the fixed shell is sleeved with the skin protection cover. The design can balance the pressure inside and outside the underwater junction box, effectively reduce the watertight requirement of the sealing surface of the underwater junction box, keep the internal and external pressure balance in a wider water depth range and enlarge the application range of the system.
Description
Technical Field
The invention relates to an underwater junction box, in particular to an underwater junction box with an automatic pressure compensation function, which is particularly suitable for reducing the watertight requirement of a sealing surface of the underwater junction box.
Background
An underwater junction box is an important and key part on underwater machinery, and at present, an external independent pressure source (such as an oil supply accumulator with a spring) or a multi-layer high-pretightening-force sealing means is generally adopted on a sealing surface aiming at the sealing requirement of the junction box in an underwater working environment. The watertight junction box is communicated with an external independent pressure source through an oil path or an air path. When receiving pressure, the external pressure that watertight junction box and pressure compensator received is greater than interior pressure, and the metal box of watertight junction box can not take place deformation, and external pressure compensator takes place deformation owing to receive the external pressure, and the interior oil of pressure compensator gets into in the watertight junction box oil charge box, and the oil total volume in the oil charge box increases, has compensatied the volume loss that oil in the oil charge box reduced because of compressing for inside and outside pressure balance of watertight junction box and external pressure compensator. Although the two modes can solve the problem of water leakage of the sealing surface of the underwater junction box to a certain extent, the two modes still have the following defects:
1. the external independent pressure source cannot timely adjust the pressure in the cavity aiming at the water depth, so that the working environment range suitable for the underwater junction box is small.
2. The sealing means of multilayer sealing and high pretightning force has higher processing precision requirement and large assembly difficulty.
3. The two modes have complicated structures and higher requirements on maintenance and overhaul.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an underwater junction box with an automatic pressure compensation function.
In order to achieve the above purpose, the technical solution of the invention is as follows:
an underwater junction box having an automatic pressure compensation function, comprising: a compensator, a communication pipe and a junction box housing; the compensator is connected as an organic whole through communicating pipe and junction box shell, and communicating pipe and junction box shell's inside looks UNICOM is passed through to the inside of compensator, the compensator includes: a stationary housing, a skin, and a skin shroud; the utility model discloses a junction box structure, including junction box shell, fixed shell, covering shield, connector, junction box shell, fixed shell and covering sealed connection, the fixed shell is one side open-ended box structure, the opening side of fixed shell is located to the covering shield cover, the connector has been seted up on the fixed shell, communicating pipe is pipeline structure, the junction box shell is the box structure, the pipeline interface has been seted up on the junction box shell, the one end and the connector of communicating pipe are linked together, the other end and the pipeline interface of communicating pipe are linked together, the junction of communicating pipe and connector is sealing connection, communicating pipe and pipeline interface's junction is sealing connection.
The skin is bonded to the outer edge of the fixed case opening side by waterproof glue, and the skin is made of an elastic and watertight material.
The skin is made of latex, silica gel or rubber materials.
The covering shield is of a cover plate structure and is fixedly connected with the bolt holes in the fixed shell through the fixing holes in the side wall of the covering shield, the bolt holes in the fixed shell are blind holes, the opening side of the fixed shell is sleeved with the covering shield, a plurality of pressure balance holes are formed in the covering shield, and the diameter of each pressure balance hole is smaller than a millimeter.
The compensator is provided with at least two connectors, the junction box shell is provided with pipeline interfaces corresponding to the connectors, and the connectors are communicated with the corresponding pipeline interfaces through communicating pipes arranged on the connectors.
And a plurality of pipeline interfaces are arranged on the junction box shell.
The junction box shell is communicated with the two compensators through a plurality of communicating pipes.
The junction box shell is communicated with the compensators through a plurality of communicating pipes simultaneously.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the underwater junction box with the automatic pressure compensation function, the internal space of the compensator is compressed by utilizing the deformation of the skin on the compensator, so that the effect of balancing the internal pressure and the external pressure of the compensator is achieved, the compensator is communicated with the junction box shell, so that the pressure of the compensator, the junction box shell and the external working environment is consistent, the working cavity is watertight and does not need to be subjected to extra pressure, and the watertight sealing requirement is effectively reduced. Therefore, the design can balance the pressure inside and outside the underwater junction box, and the watertight requirement of the sealing surface of the underwater junction box is effectively reduced.
2. The skin in the underwater junction box with the automatic pressure compensation function is bonded with the outer edge of the opening side of the compensator shell through the waterproof glue, the waterproof glue is high in flexibility, strong in bonding force and excellent in impermeability, and meanwhile, the skin is suitable for underwater work environment in a waterproof and impermeable mode, the connection between the skin and the compensator shell is firm and reliable, and the installation mode is simple. Therefore, the design structure is firm and reliable, the installation mode is simple, the service life can be effectively prolonged, and the assembly cost is reduced.
3. The covering in the underwater junction box with the automatic pressure compensation function is made of latex or silica gel, the covering is soft and sensitive to the response of water pressure, can deform more quickly and sensitively to the quick change of the working depth caused by quick submergence and upward floating of a submersible in the working process, so that the pressure is transmitted, and meanwhile, the covering is strong in corrosion resistance, and can effectively reduce the corrosion of an erosion object in the underwater environment to the covering. Therefore, the design has sensitive response, improves the pressure change of the submersible in the processes of quick submergence and upward floating, effectively improves the working performance, can reduce the corrosion of the skin in the using process and effectively prolongs the service life of the skin.
4. The skin shield in the underwater junction box with the automatic pressure compensation function can completely cover the compensator skin, so that the compensator skin is protected, and the compensator skin is prevented from being damaged by external force. Therefore, the skin shield in the design can protect the skin of the compensator, avoid the damage of the skin of the compensator and effectively prolong the service life.
5. The underwater junction box with the automatic pressure compensation function adopts a modular design, a single junction box can be simultaneously communicated with a plurality of compensators, and the number of the compensators arranged on the junction box is increased or reduced according to the applied water depth, so that the pressure compensation space of the system is in a proper range interval, the internal and external pressure balance of the underwater junction box can be kept in a wider water depth range, and the application range of the system is enlarged. Therefore, the design has the advantages of large adaptive working range and wide application range.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention in an operating state.
Fig. 3 is a schematic view showing a structure of a compensator coupling part according to the present invention.
In the figure: . Compensator 1, fixed shell 2, covering 3, connector 4, communicating pipe 5, junction box shell 6, pipeline interface 7, covering guard 8.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, an underwater connection box having an automatic pressure compensation function includes: the compensator 1, the communicating pipe 5 and the junction box housing 6; compensator 1 is connected as an organic wholely through communicating pipe 5 and junction box shell 6, and the inside of compensator 1 is passed through communicating pipe 5 and junction box shell 6's inside looks UNICOM, compensator 1 includes: a stationary casing 2, a skin 3 and a skin shield 8; the utility model discloses a connection structure, including fixed shell 2, opening upper shield, connector 4, communicating pipe 5, junction box shell 6, pipeline interface 7 has been seted up on junction box shell 6, the one end of communicating pipe 5 is linked together with connector 4, the other end of communicating pipe 5 is linked together with pipeline interface 7, communicating pipe 5 is sealing connection with connector 4, communicating pipe 5 is sealing connection with pipeline interface 7's junction.
The skin 3 is bonded to the outer edge of the opening side of the fixed casing 2 by waterproof glue, and the skin 3 is made of an elastic and watertight material.
The skin 3 is made of latex, silica gel or rubber.
The covering shield 8 is of a cover plate structure, the covering shield 8 is fixedly connected with the bolt holes in the fixed shell 2 through the fixing holes in the side wall of the covering shield 8, the bolt holes in the fixed shell 2 are blind holes, the opening side of the fixed shell 2 is sleeved with the covering shield 8, a plurality of pressure balance holes are formed in the covering shield 8, and the diameter of each pressure balance hole is smaller than 1 millimeter.
The compensator 1 is provided with at least two connectors 4, the junction box shell 6 is provided with pipeline connectors 7 corresponding to the connectors 4, and the connectors 4 are communicated with the corresponding pipeline connectors 7 through communicating pipes 5 arranged on the connectors 4.
And a plurality of pipeline interfaces 7 are arranged on the junction box shell 6.
The junction box housing 6 is simultaneously communicated with the two compensators 1 through a plurality of communicating tubes 5.
The junction box housing 6 is simultaneously communicated with the plurality of compensators 1 through the plurality of communication pipes 5.
The principle of the invention is illustrated as follows:
a plurality of pipeline interfaces 6 are arranged on a junction box shell 5 in the design, so that a plurality of compensators 1 can be installed on one junction box, and the pipeline interfaces 6 without the compensators 1 can be sealed through plugs.
The pipe connections 6 are arranged uniformly on different sides of the connection box housing 5. The plurality of compensators 1 mounted on the junction box housing 5 in a deep water environment can provide uniform pressure compensation to the junction box from different sides.
Example 1:
an underwater junction box having an automatic pressure compensation function, comprising: the compensator 1, the communicating pipe 5 and the junction box housing 6; compensator 1 is connected as an organic wholely through communicating pipe 5 and junction box shell 6, and the inside of compensator 1 is passed through communicating pipe 5 and junction box shell 6's inside looks UNICOM, compensator 1 includes: a stationary casing 2, a skin 3 and a skin shield 8; the fixed shell 2 is of a box structure with an opening on one side, the opening of the fixed shell 2 is covered with a skin 3, the fixed shell 2 is connected with the skin 3 in a sealing manner, the skin shield 8 is of a cover plate structure, the skin shield 8 is sleeved on the opening side of the fixed shell 2, a connector 4 is arranged on the fixed shell 2, the communication pipe 5 is of a pipeline structure, the junction box shell 6 is of a box structure, a pipeline connector 7 is arranged on the junction box shell 6, one end of the communication pipe 5 is communicated with the connector 4, the other end of the communication pipe 5 is communicated with the pipeline connector 7, the joint of the communication pipe 5 and the connector 4 is in sealing connection, and the joint of the communication pipe 5 and the pipeline connector 7 is in sealing connection; the skin 3 is bonded with the outer edge of the opening side of the fixed shell 2 through waterproof glue, and the skin 3 is made of an elastic and waterproof material; the skin 3 is made of latex, silica gel or rubber; the skin protection cover 8 is of a cover plate structure, the skin protection cover 8 is fixedly connected with a bolt hole in the fixed shell 2 through a fixing hole in the side wall of the skin protection cover 8, the bolt hole in the fixed shell 2 is a blind hole, the skin protection cover 8 is sleeved on the opening side of the fixed shell 2, a plurality of pressure balance holes are formed in the skin protection cover 8, and the diameter of each pressure balance hole is smaller than 1 mm; the compensator 1 is provided with at least two connectors 4, the junction box shell 6 is provided with pipeline connectors 7 corresponding to the connectors 4, and the connectors 4 are communicated with the corresponding pipeline connectors 7 through communicating pipes 5 arranged on the connectors 4.
Example 2:
example 2 is substantially the same as example 1 except that:
the junction box housing 6 is simultaneously communicated with the two compensators 1 through a plurality of communicating pipes 5; and a plurality of pipeline interfaces 7 are arranged on the junction box shell 6.
Example 3:
example 3 is substantially the same as example 2 except that:
the junction box housing 6 is simultaneously communicated with the plurality of compensators 1 through the plurality of communication pipes 5.
Claims (8)
1. The utility model provides a possesses automatic pressure compensation function's junction box under water which characterized in that:
the underwater junction box includes: the compensator (1), the communicating pipe (5) and the junction box shell (6); compensator (1) is connected as an organic wholely through communicating pipe (5) and junction box shell (6), and the inside of compensator (1) is passed through communicating pipe (5) and is linked together with the inside of junction box shell (6), compensator (1) includes: a fixed shell (2), a skin (3) and a skin shield (8); the fixed shell (2) is a box structure with an opening on one side, the opening of the fixed shell (2) is covered with a skin (3), the fixed shell (2) is connected with the skin (3) in a sealing way, the skin shield (8) is of a cover plate structure, the covering protective cover (8) is sleeved on the opening side of the fixed shell (2), a connecting port (4) is formed in the fixed shell (2), the communicating pipe (5) is of a pipeline structure, the junction box shell (6) is of a box body structure, a pipeline interface (7) is arranged on the junction box shell (6), one end of the communicating pipe (5) is communicated with the connecting port (4), the other end of the communicating pipe (5) is communicated with the pipeline interface (7), the joint of the communicating pipe (5) and the connecting port (4) is in sealing connection, the connection part of the communicating pipe (5) and the pipeline interface (7) is in sealing connection.
2. The underwater connection box with the automatic pressure compensation function according to claim 1, characterized in that:
the skin (3) is bonded to the outer edge of the opening side of the fixed shell (2) through waterproof glue, and the skin (3) is made of an elastic and waterproof material.
3. The underwater connection box with the automatic pressure compensation function according to claim 2, characterized in that:
the covering (3) is made of latex, silica gel or rubber.
4. The underwater connection box with automatic pressure compensation function according to any one of claims 1, 2 or 3, characterized in that:
covering guard shield (8) are the apron structure, covering guard shield (8) are through the fixed orifices on its lateral wall and the bolt hole fixed connection on fixed shell (2), the bolt hole on fixed shell (2) is the blind hole, the opening side of fixed shell (2) is located to covering guard shield (8) cover, a plurality of pressure balance holes have been seted up on covering guard shield (8), pressure balance hole diameter is less than 1 millimeter.
5. The underwater connection box with the automatic pressure compensation function according to claim 4, wherein:
the compensator is characterized in that at least two connectors (4) are arranged on the compensator (1), pipeline interfaces (7) corresponding to the connectors (4) are arranged on the junction box shell (6), and the connectors (4) are communicated with the corresponding pipeline interfaces (7) through communicating pipes (5) arranged on the connectors (4).
6. The underwater connection box with the automatic pressure compensation function according to claim 5, wherein:
and the junction box shell (6) is provided with a plurality of pipeline interfaces (7).
7. The underwater connection box with the automatic pressure compensation function according to claim 6, characterized in that:
the junction box shell (6) is communicated with the two compensators (1) through a plurality of communicating pipes (5).
8. The underwater connection box with the automatic pressure compensation function according to claim 6, characterized in that:
the junction box shell (6) is communicated with the compensators (1) through the communicating pipes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652391.5A CN113381358A (en) | 2021-06-11 | 2021-06-11 | Underwater junction box with automatic pressure compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652391.5A CN113381358A (en) | 2021-06-11 | 2021-06-11 | Underwater junction box with automatic pressure compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113381358A true CN113381358A (en) | 2021-09-10 |
Family
ID=77573931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110652391.5A Pending CN113381358A (en) | 2021-06-11 | 2021-06-11 | Underwater junction box with automatic pressure compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113381358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459506A (en) * | 2022-09-17 | 2022-12-09 | 中机锻压江苏股份有限公司 | Pressure compensation type sealing device at shaft extension position of deep water motor oil pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235921Y (en) * | 2008-07-08 | 2009-05-13 | 中国船舶重工集团公司第七○二研究所 | Bag type hydraulic balance gear |
| CN201656416U (en) * | 2010-03-30 | 2010-11-24 | 中国船舶重工集团公司第七〇二研究所 | Compensation film type oil-filled connection box for deep diving submersible |
| CN110379592A (en) * | 2019-08-05 | 2019-10-25 | 吉林大学 | A kind of compensation underwater transformer of double pressure |
| CN210319011U (en) * | 2019-07-31 | 2020-04-14 | 河北龙盛管道装备有限公司 | Long-life nonmetal compensator |
-
2021
- 2021-06-11 CN CN202110652391.5A patent/CN113381358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235921Y (en) * | 2008-07-08 | 2009-05-13 | 中国船舶重工集团公司第七○二研究所 | Bag type hydraulic balance gear |
| CN201656416U (en) * | 2010-03-30 | 2010-11-24 | 中国船舶重工集团公司第七〇二研究所 | Compensation film type oil-filled connection box for deep diving submersible |
| CN210319011U (en) * | 2019-07-31 | 2020-04-14 | 河北龙盛管道装备有限公司 | Long-life nonmetal compensator |
| CN110379592A (en) * | 2019-08-05 | 2019-10-25 | 吉林大学 | A kind of compensation underwater transformer of double pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459506A (en) * | 2022-09-17 | 2022-12-09 | 中机锻压江苏股份有限公司 | Pressure compensation type sealing device at shaft extension position of deep water motor oil pump |
| CN115459506B (en) * | 2022-09-17 | 2023-10-31 | 中机锻压江苏股份有限公司 | Pressure compensation type sealing device for extending part of oil pump shaft of deepwater motor |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210910 |
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| RJ01 | Rejection of invention patent application after publication |