CN105655895B - DC switchgear is pressed in seabed - Google Patents
DC switchgear is pressed in seabed Download PDFInfo
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- CN105655895B CN105655895B CN201610147433.9A CN201610147433A CN105655895B CN 105655895 B CN105655895 B CN 105655895B CN 201610147433 A CN201610147433 A CN 201610147433A CN 105655895 B CN105655895 B CN 105655895B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The present invention relates to press DC switchgear in a kind of seabed, including internal functional elements and pressure-resistant seal cavity, the internal functional elements are arranged in pressure-resistant seal cavity, the pressure-resistant seal cavity is by drive end bearing bracket, cylinder and rear end cap are sequentially connected composition, first watertight connector and the second watertight connector are installed on the drive end bearing bracket, described internal functional elements include the external interface power control module installed on cooling stand and described cooling stand, external interface state detection module, first mesolow DC converting module, middle pressure monitoring bus module, second mesolow DC converting module, internal environment state monitoring module, internal load monitoring module, Ethernet switch and PC/104 master controllers.The present invention realizes flexibly control electric energy distribution and monitoring self-operating state, simple in construction and excellent radiation performance, can be suitably used for large volume, the various application scenarios such as high-power, can effectively reduce the environment temperature of inner function circuit, improve the reliability and stability of longtime running.
Description
Technical field
The invention belongs to subsea power technical field, it is related in a kind of seabed and presses DC switchgear, specifically one kind
The medium voltage DC that seabed transformer station is exported can distribute to the device of each seabed power load.
Background technology
Currently in the fields such as scientific research of seas, disaster alarm and development of resources, undersea device quantity is more and more, cover
Lid scope is increasingly wider, operation power consumption is increasing and continuous operating time is increasingly longer.Therefore, traditional ship base ocean is visited
Survey mode has been difficult to meet demand, and the lasting electric energy that only could solve a large amount of undersea devices by special seabed power network is supplied
Problem.In such seabed power network, seabed HVDC transformation device is first order dropping equipment, is responsible for that seabed will be delivered to
After medium voltage DC of the first Situ Conversion of the high voltage direct current of thousands of volts for 400V or so, it is available in seabed and presses DC distribution
Device, pressure DC switchgear, which can distribute according to need the medium voltage DC, in seabed gives each seabed power load.
The controllability that existing apparatus is distributed power load electric energy is low, and weak to the ability of self-operating condition monitoring.This
Outside, existing apparatus generally employs traditional end cap radiating, radiating, elasticity is adjacent to naturally and is adjacent to and is radiated and four kinds of sides of oil-filled radiating
Formula：Because seabed pressure-resistant seal cavity is usually to be commonly installed watertight connector on hollow elongated cylinder structure, end cap, therefore can
The end cap area utilized is extremely limited, and the application surface of end cap radiating mode is narrow, and the installing space utilization rate of inside cavity is low；It is natural
Effective contact between the effect of radiating mode dependence internal heat dissipating support and cavity inner wall is adjacent to, both coordinate tighter, radiating
Effect is better, but assembling can be caused extremely difficult, and processing technology is generally difficult to meet and required；Elasticity is adjacent to radiating mode dependence
Elastic construction makes contact between internal heat dissipating support and cavity inner wall good, because the internal stent of large-scale plant is from great,
Design requirement to elastic construction is high, and because coefficient of elasticity causes greatly installation difficulty；Oil-filled radiating mode is full of in cavity
The insulating oil of heat loss through convection, preferably, but the pressure being applied in chamber in vivo functionality circuit and sealing structure can be with for radiating effect
Oil temperature to rise and increase, it is therefore necessary to set larger oil pressure compensator, greatly reduce the installing space profit of inside cavity
With meeting accelerated ageing after rate, and some component element long period immersion oil.Because the radiator structure of existing apparatus is not good, therefore it can be supplied to
The power of seabed power load is relatively limited, and greatly reduces reliability and stability.
The content of the invention
It is an object of the invention to propose in a kind of seabed that can flexibly control electric energy distribution and monitor self-operating state
DC switchgear is pressed, straightening stream power distribution device structure is simple in described seabed and excellent radiation performance, can be suitably used for substantially
The various application scenarios such as long-pending, high-power, improve the reliability and stability of longtime running.
The technical scheme adopted by the invention to solve the technical problem is that：
The present invention relates to DC switchgear, including internal functional elements and pressure-resistant seal cavity, institute are pressed in a kind of seabed
Internal functional elements are stated in pressure-resistant seal cavity, the pressure-resistant seal cavity is by drive end bearing bracket 105, cylinder 112 and rear end
Lid 114, which is sequentially connected on composition, the drive end bearing bracket, is provided with the first watertight connector 101 and the second watertight connector 102, described
Internal functional elements include the external interface power supply control mould installed on cooling stand 110 and described cooling stand 110
Block 201, external interface state detection module 202, the first mesolow DC converting module 203, middle pressure monitoring bus module 204,
Second mesolow DC converting module 205, internal environment state monitoring module 206, internal load monitoring module 207, Ethernet
Interchanger 208 and PC/104 master controllers 209, wherein：The input of described middle pressure monitoring bus module 204 connects the first water
Close connector 101, output end connects the first mesolow DC converting module 203, the second mesolow DC converting module 205 respectively
With the input of external interface power control module 201, the output end connection of the first mesolow DC converting module 203 is outside to be connect
The input of mouth state detection module 202, the output end of external interface state detection module 202 connects the first watertight connector
101 input, the output end connection seabed power load of the first watertight connector 101；Second mesolow DC converting module
205 output end connects the input of internal environment state monitoring module 206 and internal load monitoring module 207 respectively, internal
The output end of load monitoring module 207 connects Ethernet switch 208 and PC/104 master controllers 209 respectively；Middle pressure bus prison
Magnitude of voltage and current value that module 204 is responsible for the 400V medium voltage DCs of monitoring input seabed HVDC transformation device are controlled, and
The medium voltage DC is delivered to the first mesolow DC converting module 203 and the second mesolow DC converting module 205, in addition
Also it is delivered to each external interface power supply monitoring module 201, described the first mesolow DC converting module 203 is by straightening in this
Stream electricity is transformed to 48V low-voltage DCs, and the low-voltage DC is also delivered into corresponding external interface power supply monitoring module
201, described external interface power supply monitoring module 201 is responsible for pressing and low in completing under the instruction control of PC/104 master controllers
The power supply break-make of direct current is pressed, and middle pressure and low pressure are exported to corresponding external interface state detection module 202, described is outer
Portion's Interface status detection module 202 is responsible for magnitude of voltage and current value on the corresponding external interface of detection, is connected so as to detect
The medium voltage DC is transformed to by the power that seabed power load is consumed, the second described mesolow DC converting module 205
12V low-voltage DCs, are delivered to internal environment state monitoring module 206 and internal load monitoring module 207, described inner loop
Border state monitoring module 206 is responsible for the ambient parameters, described inside such as monitoring pressure-resistant seal inside cavity temperature, humidity and pressure
Load monitoring module 207 is connected to the PC/104 master controls of the Ethernet switch 208 and two redundancy backups of two redundancy backups
Device 209 processed, is responsible for switching Ethernet switch 208 and PC/104 master controllers 209, and monitor Ethernet switch 208 and PC/
The running situation of these internal loads of 104 master controller 209.
In the present invention, the drive end bearing bracket is respectively provided with the first watertight connector 101 and the junction of the second watertight connector 102
One of O-ring seal 103, to realize between the first watertight connector 101 and the second watertight connector 102 and drive end bearing bracket 105
Sealing.
In the present invention, the drive end bearing bracket 105 is provided with the second O-ring seal of twice 106 with the junction of cylinder 112, to realize
Sealing between drive end bearing bracket 105 and cylinder 112；The rear end cap 114 is provided with twice O-ring seal with the junction of cylinder 112
113, to realize the sealing between rear end cap 114 and cylinder 112.
In the present invention, the longitudinal section shape of the cooling stand 110 is inverted T-type structure, and lower surface is can be with cylinder 112
The circular arc of inside laminating, described one end of cooling stand 110 is connected in drive end bearing bracket 105 by sliding block 107 and sliding block base 108
Side, the sliding block 107 is connected on cooling stand 110 by the 3rd bolt 111；The sliding block base 108 passes through the second bolt
109 are connected on drive end bearing bracket 105, are mutually twisted between the sliding block 107 and sliding block base 108；The sliding block 107 is under external force
Can back and forth it be moved along a straight line on sliding block base 108, the described bottom circular arc quality of cooling stand 110 is larger, under gravity
Cooling stand 110 is adjacent to the inwall of cylinder 112 naturally downwards by sliding block 107 on sliding block base 108.
In the present invention, several circles for equidistantly arranging, having same depth are provided with the described upper surface of cooling stand 110
The elastic construction of same size, the elastic construction bag are respectively installed in cylindricality internal thread hole, described cylindrical female hole
Include hoodle lid 116, spherical hoodle 117, spring 118 and spring pedestal 119, spring pedestal 119, spring 118 and spherical hoodle 117
In the cylindrical female hole for being sequentially placed into the upper surface of cooling stand 110 from bottom to top, the spherical hoodle 117, the and of spring 118
The diameter of spring pedestal 119 is slightly less than the interior diameter in the cylindrical female hole described in the upper surface of cooling stand 110, the bullet
The diameter of spring 118 is slightly less than the diameter of described spherical hoodle 117, and the hoodle lid 116 is that interior diameter is slightly less than spherical hoodle
The hollow circular cylinder structure of 117 diameters, the hoodle lid 116 has external screw thread, and the external screw thread of hoodle lid 116 is installed on radiating branch
In the internal thread hole of the upper surface of frame 110, the spherical part of hoodle 117 can be made to expose hoodle lid 116 when compression spring 118；When scattered
When hot support 110 is installed in pressure-resistant seal cavity, the spherical hoodle 117 can withstand the inwall of cylinder 112, while making spring
118 compressions, so that cooling stand 110 is more adjacent to the inwall of cylinder 112, and Absorption And Transportation shakes with the machinery during laying
It is dynamic.
In the present invention, the first mesolow DC converting module 203, external interface power control module 201, outside connect
Mouth state detection module 202 is identical with the number of the first watertight connector 101.
Compared with prior art, the invention has the advantages that：
The present invention realizes flexibly control electric energy distribution and monitoring self-operating state, simple in construction and heat dispersion is excellent
It is good, it can be suitably used for large volume, the various application scenarios such as high-power, can effectively reduce the environment temperature of inner function circuit, improve
The reliability and stability of longtime running.Relatively conventional end cap radiating mode, with more fully area of dissipation and circuit mould
Block installing space, advantageously reduces interior environment temperature；What relatively conventional heat sink and pressure-resistant seal cavity inner wall was adjacent to dissipates
Hot mode, reduces hot between seawater outside the heater members and pressure-resistant seal cavity on internal circuit blocks by spring compression mode
Resistance, further reduces interior environment temperature, while requirement of the reduction to cylinder and support assorted technique so that assembling is more simple
Just；Relatively conventional inside cavity oil-filled radiating mode, it is to avoid volumetric expansion causes inside cavity pressure to increase during fluid heating
Influence greatly to internal circuit blocks, and avoid using large volume of oil pressure compensator, in reduction interior environment temperature
Simultaneously so that electromechanical integrated morphology is more compact.
Brief description of the drawings
Fig. 1 is the overall construction drawing of pressure DC switchgear in seabed.
Fig. 2 is scheme of installation of the inner function module on cooling stand.
Fig. 3 is the top view of cooling stand.
Fig. 4 is the front view of cooling stand.
Fig. 5 is the right view of cooling stand.
Fig. 6 is the schematic diagram of the elastic construction on cooling stand.
Fig. 7 is the cooperation schematic diagram of sliding block and sliding block base.
Fig. 8 is the scheme of installation of pressure-resistant seal cavity and cooling stand：（a）Front view；（b）Side view；（c）Under regard
Figure.
Fig. 9 is the overall schematic of pressure DC switchgear in seabed.
Figure 10 is the theory diagram of pressure DC switchgear in seabed.
Label in figure：101 be the first watertight connector, 102 be the second watertight connector, 103 be the first O-ring seal,
104 it is the first bolt, 105 be drive end bearing bracket, 106 be the second O-ring seal, 107 be sliding block, 108 be sliding block base, 109 is
Two bolts, 110 be cooling stand, 111 be the 3rd bolt, 112 be cylinder, 113 be the 3rd O-ring seal, 114 be rear end cap,
115 it is the 4th bolt, 201 be external interface power control module, 202 be external interface state detection module, 203 is in first
Low-voltage direct conversion module, 204 be middle pressure monitoring bus module, 205 be the second mesolow DC converting module, 206 be internal
Ambient condition monitoring modular, 207 be internal load monitoring module, 208 be Ethernet switch, 209 be PC/104 master controllers.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1:Fig. 1-Fig. 9 is the pressure-resistant seal cavity of pressure DC switchgear in described seabed, cooling stand
Structure and mounting means.DC switchgear is pressed to include internal functional elements and pressure-resistant seal cavity in described seabed, it is described
Internal functional elements be arranged on pressure-resistant seal cavity in：Described pressure-resistant seal cavity mainly includes drive end bearing bracket 105, cylinder
112 and rear end cap 114, the first watertight connector 101 and the second watertight connector 102 are installed on described drive end bearing bracket, it is described
The first watertight connector 101 and the second watertight connector 102 respectively have together the first O-ring seal 103 realize and drive end bearing bracket
Sealing between 105, described drive end bearing bracket 105 and rear end cap 114 pass through the first bolt 104 and the 4th bolt 115 and cylinder respectively
Body 112 is connected, and described drive end bearing bracket 105 and rear end cap 114 are O-shaped close by the second O-ring seal of twice 106 and the 3rd respectively
The sealing between cylinder 112 is realized in seal 113；Described internal functional elements mainly include cooling stand 110 and described
Cooling stand 110 on the external interface power control module 201, low in external interface state detection module 202, first installed
Straightening stream conversion module 203, middle pressure monitoring bus module 204, the second mesolow DC converting module 205, internal environment state
Monitoring modular 206, internal load monitoring module 207, Ethernet switch 208 and PC/104 master controllers 209.
As shown in Fig. 3-Fig. 8, the cross sectional shape of cooling stand 110 is similar inverted T shaped, lower surface for can with inside cylinder 112
There is the installing plate and mounting hole of sliding block 107, described cooling stand 110 passes through the He of sliding block 107 on the circular arc of laminating, left side
Sliding block base 108 is connected to the inner side of drive end bearing bracket 105, and described sliding block 107 is connected to cooling stand 110 by the 3rd bolt 111
On, described sliding block base 108 is connected on drive end bearing bracket 105 by the second bolt 109, described sliding block 107 and sliding block base
It is mutually twisted between 108, described sliding block 107 can be straight in certain scope on sliding block base 108 under certain external force
Line is moved, and because the described bottom circular arc quality of cooling stand 110 is larger, cooling stand 110 passes through sliding block under gravity
107 are adjacent to the inwall of cylinder 112 naturally downwards on sliding block base 108.
As shown in fig. 7, having some equidistant arrangements on the described upper surface of cooling stand 110, having the interior spiral shell of same depth
The elastic construction of same size is respectively installed, described elastic construction includes in pit, described cylindrical internal thread hole hole
Hoodle lid 116, spherical hoodle 117, spring 118 and spring pedestal 119, described spherical hoodle 117, spring 118 and spring bottom
The diameter of seat 119 is slightly less than the interior diameter of the internal thread hole described in the upper surface of cooling stand 110, described spring 118 it is straight
Footpath is slightly less than the diameter of described spherical hoodle 117 again, and it is straight that described hoodle lid 116 is slightly less than spherical hoodle 117 for interior diameter
The hollow circular cylinder in footpath, the upper surface institute of cooling stand 110 is sequentially placed into by spring pedestal 119, spring 118 and spherical hoodle 117
The internal thread hole stated, described hoodle lid 116 has external screw thread, installed in the internal thread hole described in the upper surface of cooling stand 110
It is interior, the spherical part of hoodle 117 can be made to expose hoodle lid 116 while compression spring 118, described cooling stand 110 is installed
When in pressure-resistant seal cavity, described spherical hoodle 117 can withstand the inwall of cylinder 112 and to a certain extent compression spring 118,
So that cooling stand 110 is more adjacent to the inwall of cylinder 112, and Absorption And Transportation and the mechanical oscillation during laying.
Figure 10 describes the interconnected relationship and operation principle that DC switchgear inner function module is pressed in seabed, institute
The middle pressure monitoring bus module 204 stated is connected to seabed HVDC transformation device by the second watertight connector 102, is responsible for prison
The magnitude of voltage and current value of the 400V medium voltage DCs of control input seabed HVDC transformation device, and the medium voltage DC is defeated
The first low-voltage direct conversion module 203 and a second low-voltage direct conversion module 205 in each are delivered to, is additionally delivered to each
Individual external interface power supply monitoring module 201, each external loading interface is respectively provided with a first mesolow DC converting module
203rd, an external interface power supply monitoring module 201, an external interface state detection module 202 and one are connected to seabed use
The medium voltage DC is transformed to 48V by the first watertight connector 101 of electric load, described mesolow DC converting module 203
Low-voltage DC, and the low-voltage DC is also delivered to corresponding external interface power supply monitoring module 201, described outside connects
Confession electricity monitoring module 201 is responsible for the confession of pressure and low-voltage DC in being completed under the instruction control of PC/104 master controllers 209
Electric break-make, and middle pressure and low pressure are exported to corresponding external interface state detection module 202, described external interface state inspection
Magnitude of voltage and current value that module 202 is responsible on the corresponding external interface of detection are surveyed, so as to detect connected seabed power load
The medium voltage DC is transformed to 12V low-voltage directs by the power consumed, the second described mesolow DC converting module 205
Electricity, is delivered to internal environment state monitoring module 206 and internal load monitoring module 207, described internal environment status monitoring
Module 206 is responsible for the ambient parameters such as monitoring pressure-resistant seal inside cavity temperature, humidity and pressure, described internal load monitoring mould
Block 207 is connected to the Ethernet switch 208 of two redundancy backups and the PC/104 master controllers 209 of two redundancy backups, bears
Duty switching Ethernet switch 208 and PC/104 master controllers 209, and monitor Ethernet switch 208 and PC/104 main controls
The running situation of these internal loads of device 209.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to implementation here
Example, those skilled in the art do not depart from improvement that scope made and change all should be according to the announcement of the present invention
Within protection scope of the present invention.
Claims (6)
1. DC switchgear is pressed in a kind of seabed, including internal functional elements and pressure-resistant seal cavity, it is characterised in that it is described
Internal functional elements be arranged on pressure-resistant seal cavity in, the pressure-resistant seal cavity by drive end bearing bracket (105), cylinder (112) and after
End cap (114), which is sequentially connected on composition, the drive end bearing bracket, is provided with the first watertight connector (101) and the second watertight connector
(102), described internal functional elements include the outside installed on cooling stand (110) and described cooling stand (110)
Interface power control module (201), external interface state detection module (202), the first mesolow DC converting module (203),
It is middle pressure monitoring bus module (204), the second mesolow DC converting module (205), internal environment state monitoring module (206),
Internal load monitoring module (207), Ethernet switch (208) and PC/104 master controllers (209), wherein：Described middle pressure
The input of monitoring bus module (204) connects the first watertight connector (101), and output end connects the first mesolow direct current respectively
The input of conversion module (203), the second mesolow DC converting module (205) and external interface power control module (201),
The input of the output end connection external interface state detection module (202) of first mesolow DC converting module (203), it is outside
The output end of Interface status detection module (202) connects the input of the first watertight connector (101), the first watertight connector
(101) output end connection seabed power load；The output end of second mesolow DC converting module (205) connects inside respectively
The input of ambient condition monitoring modular (206) and internal load monitoring module (207), internal load monitoring module (207)
Output end connects Ethernet switch (208) and PC/104 master controllers (209) respectively；Middle pressure monitoring bus module (204) is born
The magnitude of voltage and current value of the 400V medium voltage DCs of duty monitoring input seabed HVDC transformation device, and by straightening stream in this
Electricity is delivered to the first mesolow DC converting module (203) and the second mesolow DC converting module (205), is additionally delivered to
Each external interface power supply monitoring module (201), described the first mesolow DC converting module (203) is by the medium voltage DC
48V low-voltage DCs are transformed to, and the low-voltage DC is also delivered to corresponding external interface power supply monitoring module (201),
Described external interface power supply monitoring module (201) is responsible for pressure and low pressure in being completed under the instruction control of PC/104 master controllers
The power supply break-make of direct current, and middle pressure and low pressure are exported to corresponding external interface state detection module (202), described is outer
Portion's Interface status detection module (202) is responsible for magnitude of voltage and current value on the corresponding external interface of detection, so that the company of detection
The power that seabed power load is consumed is connect, the second described mesolow DC converting module (205) becomes the medium voltage DC
12V low-voltage DCs are changed to, internal environment state monitoring module (206) and internal load monitoring module (207) is delivered to, it is described
Internal environment state monitoring module (206) be responsible for monitoring pressure-resistant seal inside cavity temperature, humidity and pressure, described inside
Load monitoring module (207) is connected to the Ethernet switch (208) of two redundancy backups and the PC/104 of two redundancy backups
Master controller (209), is responsible for switching Ethernet switch (208) and PC/104 master controllers (209), and monitor Ethernet exchanging
The running situation of machine (208) and PC/104 master controllers (209) internal load.
2. press DC switchgear in seabed according to claim 1, it is characterised in that the drive end bearing bracket and the first watertight
Connector (101) and the second watertight connector (102) junction are respectively provided with one of O-ring seal (103), to realize the first water
Sealing between close connector (101) and the second watertight connector (102) and drive end bearing bracket (105).
3. press DC switchgear in seabed according to claim 1, it is characterised in that the drive end bearing bracket (105) and cylinder
(112) junction is provided with the O-ring seal of twice second (106), close between drive end bearing bracket (105) and cylinder (112) to realize
Envelope；The rear end cap (114) is provided with twice O-ring seal (113) with cylinder (112) junction, to realize rear end cap (114)
With the sealing between cylinder (112).
4. press DC switchgear in seabed according to claim 1, it is characterised in that the cooling stand (110) it is vertical
It is inverted T-type structure to cross sectional shape, lower surface is can be with the internal circular arc fitted of cylinder (112), the cooling stand (110) one
End is connected on the inside of drive end bearing bracket (105) by sliding block (107) and sliding block base (108), and the sliding block (107) passes through the 3rd bolt
(111) it is connected on cooling stand (110)；The sliding block base (108) is connected to drive end bearing bracket by the second bolt (109)
(105) on, it is mutually twisted between the sliding block (107) and sliding block base (108)；The sliding block (107) can be in cunning under external force
Block base moves along a straight line back and forth on (108), and described cooling stand (110) bottom circular arc quality is larger, dissipates under gravity
Hot support (110) is adjacent to cylinder (112) inwall naturally downwards by sliding block (107) on sliding block base (108).
5. press DC switchgear in seabed according to claim 1, it is characterised in that on described cooling stand (110)
It is provided with end face in several cylindrical female holes for equidistantly arranging, having same depth, described cylindrical female hole
The elastic construction of same size is respectively installed, the elastic construction includes hoodle lid (116), spherical hoodle (117), spring
(118) and spring pedestal (119), spring pedestal (119), spring (118) and spherical hoodle (117) are sequentially placed into scattered from bottom to top
In the cylindrical female hole of hot support (110) upper surface, the spherical hoodle (117), spring (118) and spring pedestal
(119) diameter is slightly less than the interior diameter in the cylindrical female hole described in cooling stand (110) upper surface, the spring
(118) diameter is slightly less than the diameter of described spherical hoodle (117), and the hoodle lid (116) is slightly less than spherical for interior diameter
The hollow circular cylinder structure of hoodle (117) diameter, the hoodle lid (116) has external screw thread, and the external screw thread of hoodle lid (116) is pacified
In internal thread hole loaded on cooling stand (110) upper surface, spherical hoodle (117) part dew can be made when compression spring (118)
Go out hoodle lid (116)；When cooling stand (110) is installed in pressure-resistant seal cavity, the spherical hoodle (117) can withstand cylinder
Body (112) inwall, while spring (118) is compressed, so that cooling stand (110) is more adjacent to cylinder (112) inwall, and
Absorption And Transportation and the mechanical oscillation during laying.
6. press DC switchgear in seabed according to claim 1, it is characterised in that the first mesolow direct current becomes
Change the mold block (203), external interface power control module (201), external interface state detection module (202), the connection of the first watertight
Device (101), seabed power load quantity it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610147433.9A CN105655895B (en) | 2016-03-16 | 2016-03-16 | DC switchgear is pressed in seabed |
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| CN201610147433.9A CN105655895B (en) | 2016-03-16 | 2016-03-16 | DC switchgear is pressed in seabed |
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| CN105655895B true CN105655895B (en) | 2017-09-12 |
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| EP3264552B1 (en) * | 2016-06-27 | 2018-12-12 | ABB Schweiz AG | A subsea electric power distribution installation |
| CN109341981A (en) * | 2018-11-19 | 2019-02-15 | 中国电力科学研究院有限公司 | Sealability test device for liquid medium sealing circle |
| CN114068116B (en) * | 2021-10-20 | 2023-07-18 | 中航宝胜海洋工程电缆有限公司 | Submarine high-heat-conductivity high-power resistor device and application thereof |
| CN113985111A (en) * | 2021-12-27 | 2022-01-28 | 国网瑞嘉(天津)智能机器人有限公司 | Test system and method of robot power management board and electronic equipment |
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