CN103632410B - Black box of deepwater blowout preventer system - Google Patents
Black box of deepwater blowout preventer system Download PDFInfo
- Publication number
- CN103632410B CN103632410B CN201310699027.XA CN201310699027A CN103632410B CN 103632410 B CN103632410 B CN 103632410B CN 201310699027 A CN201310699027 A CN 201310699027A CN 103632410 B CN103632410 B CN 103632410B
- Authority
- CN
- China
- Prior art keywords
- cabin
- housing
- outer cabin
- solid state
- electric connection
- 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.)
- Active
Links
Landscapes
- Emergency Lowering Means (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to a black box of a deepwater blowout preventer system. The black box comprises an inner bin, an outer bin and a squirrel-cage fixed bracket, wherein the inner bin comprises an inner bin shell, an inner bin flange flat cover, a main solid-state disk and a backup solid-state disk; the outer bin has a split structure and comprises an fixed outer bin shell, a movable outer bin shell, an outer bin flange flat cover, a fixed outer bin thermal insulating layer and a movable outer bin thermal insulating layer; the squirrel-cage fixed bracket comprises support beams and a round top cover, the support beams are uniformly distributed along the circumference of the round top cover, the top ends of the support beams are connected with the round top cover through bolts, the bottom ends of the support beams are welded on a flange of the fixed outer bin shell, and the round top cover is connected with the movable outer bin shell through springs and nylon ropes. According to the black box, as the number of electronic components is small, the heating value is low; the solid-state disks in the black box can be smoothly radiated in a normal working process of the deepwater blowout preventer system and cannot be damaged through sequentially resisting a high temperature action and a high pressure action when the deepwater blowout preventer system malfunctions and a platform topples over.
Description
Technical field
The invention belongs to deepwater drilling device security protection field, particularly, relate to a kind of black box of deep-water blowout preventer system.
Background technology
Along with developing rapidly of marine petroleum development cause, the scope of modern marine petroleum exploration and development from coastal waters, shallow sea progressively marches to off-lying sea, region, deep-sea.Along with the increase day by day of operating water depth, the environment facing becomes increasingly complex, and has greatly improved the difficulty of marine oil probing exploitation.Deep-water blowout preventer is most important safety curtain in marine drilling, once lose efficacy, will cause catastrophic consequence.For example, on April 20th, 2010, be positioned at No. 252 1-01 well generation blowouts of deep water Horizon wire size (Deepwater Horizon) marine drilling platform Mississippi submarine canyon (Mississippi Canyon) blast in the Gulfian, and cause big fire, platform, after having burnt 36 hours, has sunk to the Gulfian, causes 11 people dead, 17 people are injured, and large area marine site is subject to severe contamination.Because deep-water blowout preventer system together sinks to marinely with marine drilling platform, a large amount of critical datas disappear thereupon, for accident investigation brings a lot of difficulties.
Therefore, use for reference the development Experience of aircraft black box and marine black box, develop the black box of a set of deep-water blowout preventer system, can preserve in real time data and audio files in preventer system works.The working time of aircraft black box and marine black box is generally a few hours to dozens of hour, and in black box, electronic devices and components thermal value is little; Yet, the black box of deep-water blowout preventer system works without cessation continuously several months in drilling period, under the body thermofin heat-blocking action of black box cabin, in the heat accumulation cabin that electronic devices and components send, cannot shed, make temperature in cabin be increased to the ceiling temperature of electronic devices and components work, thereby cause black box normally to work.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of black box of deep-water blowout preventer system.
For achieving the above object, the present invention adopts following technical proposals:
A black box for deep-water blowout preventer system, comprises interior cabin, outer cabin and mouse-cage type fixed support;
Interior cabin, comprising: interior cabin housing, interior cabin flange flat cover, main solid state hard disc and backup solid state hard disc;
Interior cabin housing is cylindrical shape, and bottom is with flange, and interior cabin housing and interior cabin flange flat cover are bolted connection; The top of interior cabin hull outside is provided with subsea beacon; Interior cabin flange flat cover is provided with two threaded holes, is separately installed with the first high pressure resistant electric connection and second high pressure resistant electric connection under water under water in two bolts hole; Main solid state hard disc and backup solid state hard disc are installed in interior cabin, main solid state hard disc is fixed on by four antirattle spring on the inwall and interior cabin flange flat cover of interior cabin housing, and backup solid state hard disc is fixed on the inwall and interior cabin flange flat cover of interior cabin housing by four antirattle spring; The first heat radiator is installed on main solid state hard disc, together with main solid state hard disc fits tightly with the first heat radiator, on backup solid state hard disc, the second heat radiator is installed, backup is together with solid state hard disc fits tightly with the second heat radiator, main solid state hard disc with first under water high pressure resistant electric connection by the 3rd signal cable, be connected; Backup solid state hard disc with second under water high pressure resistant electric connection by the 4th signal cable, be connected;
Outer cabin is split-type structural, comprising: fixing outer cabin housing, mobile outer cabin housing, outer cabin flange flat cover, fixing outer cabin thermofin and mobile outer cabin thermofin;
Fixing outer cabin housing be bottom with the cylindrical housings of flange, the top of fixing outer cabin housing, with barb, is fixed outer cabin housing and outer cabin flange flat cover and is bolted connection; In the housing of fixing outer cabin, be provided with fixing outer cabin thermofin, bottom, interior cabin is solidificated in the thermofin of fixing outer cabin;
On the flange flat cover of outer cabin, have two threaded holes, the first electric connection and the second electric connection are installed respectively in two threaded holes; First under water high pressure resistant electric connection with second under water high pressure resistant electric connection by first signal cable, be connected with secondary signal cable respectively with the second electric connection with the first electric connection;
The first electric connection and the second electric connection outside are separately installed with the first hard-disk interface circuit module and the second hard-disk interface circuit module, the first hard-disk interface circuit module is connected with the master station of deep-water blowout preventer system with the second usb data line by the first usb data line respectively with the second hard-disk interface circuit module, and master station is connected with microphone by Audio Data Line;
In the housing of mobile outer cabin, be provided with mobile outer cabin thermofin, in the thermofin of mobile outer cabin, be provided with cavity, the shape of this cavity is identical with the shape on top, interior cabin, uniform eight ratchets outside the bottom of mobile outer cabin housing, ratchet moves down while inserting barb, can make fixing outer cabin housing and mobile outer cabin housing be fixed together;
Mouse-cage type fixed support, comprising: ten six roots of sensation brace summer and circular top cover; Ten six roots of sensation brace summers distribute along the even circumferential of circular top cover; The top of brace summer is connected by bolt with circular top cover, and the bottom of brace summer is welded on the flange of fixing outer cabin housing; Circular top cover is connected with four nylon ropes by eight springs with mobile outer cabin housing.
With respect to prior art, beneficial effect of the present invention is as follows: sound collection processing module and hard-disk interface circuit module is external outside the black box of deep-water blowout preventer system, and the electronic devices and components quantity in black box is few, and thermal value is low; Black box cabin body is the double-decker with split type thermofin, can guarantee that the solid state hard disc in black box dispels the heat smoothly when deep-water blowout preventer system is normally worked, in deep-water blowout preventer system, have an accident and when platform topples, can first stand high temperature and stand High Pressure again and do not damage.
Accompanying drawing explanation
Fig. 1 is the black box structural representation of deep-water blowout preventer system;
Fig. 2 is the black box tomograph of the deep-water blowout preventer system in heat radiation situation;
Fig. 3 is the black box tomograph of the deep-water blowout preventer system in heat insulation situation;
In figure, 1, master station, 2, Audio Data Line, 3, microphone, 4, the first usb data line, 5, the second usb data line, 6, outer cabin flange flat cover, 7, the first hard-disk interface circuit module, 8, the second hard-disk interface circuit module, 9, the first electric connection, 10, the second electric connection, 11, interior cabin flange flat cover, 12, the first high pressure resistant electric connection under water, 13, the second high pressure resistant electric connection under water, 14, main solid state hard disc, 15, backup solid state hard disc, 16, the first heat radiator, 17, the second heat radiator, 18, fixing outer cabin housing, 19, mobile outer cabin housing, 20, mouse-cage type fixed support, 21, spring, 22, nylon rope, 23, ratchet, 24, barb, 25, first signal cable, 26, secondary signal cable, 27, the 3rd signal cable, 28, the 4th signal cable, 29, interior cabin housing, 30, fixing outer cabin thermofin, 31, mobile outer cabin thermofin, 32, subsea beacon, 33, interior cabin, 34, outer cabin, 35, bolt, 36, brace summer, 37, circular top cover, 38, antirattle spring.
Embodiment
As shown in Figure 1, the black box of deep-water blowout preventer system, comprises interior cabin 33, outer cabin 34 and mouse-cage type fixed support 20.
Interior cabin 33, comprising: interior cabin housing 29, interior cabin flange flat cover 11, main solid state hard disc 14 and backup solid state hard disc 15.
Interior cabin housing 29 is cylindrical shape, and bottom is with flange, and interior cabin housing 29 is fastenedly connected by 16 cover bolts 35 with interior cabin flange flat cover 11; The top in housing 29 outsides, interior cabin is provided with subsea beacon 32; Interior cabin flange flat cover 11 is provided with two threaded holes, is separately installed with the first high pressure resistant electric connection 12 and second high pressure resistant electric connection 13 under water under water in two bolts hole.Main solid state hard disc 14 and backup solid state hard disc 15 are installed in interior cabin 33, main solid state hard disc 14 is fixed on the inwall and interior cabin flange flat cover 11 of interior cabin housing 29 by four antirattle spring 38, backup solid state hard disc 15 is also fixed on the inwall and interior cabin flange flat cover 11 of interior cabin housing 29 by four antirattle spring 38, plays antihunt action.The first heat radiator 16 is installed on main solid state hard disc 14, and main solid state hard disc 14 is smeared heat-conducting silicone grease between the two together with fitting tightly with the first heat radiator 16; On backup solid state hard disc 15, the second heat radiator 17 is installed, together with backup solid state hard disc 15 fits tightly with the second heat radiator 17, smears heat-conducting silicone grease between the two; Main solid state hard disc 14 with first under water high pressure resistant electric connection 12 by the 3rd signal cable 27, be connected; Backup solid state hard disc 15 with second under water high pressure resistant electric connection 13 by the 4th signal cable 28, be connected.Interior cabin housing 29 and interior cabin flange flat cover 11 are manufactured by 310S stainless steel, can bear 30MPa external pressure.
Outer cabin 34 is split-type structural, comprising: fixing outer cabin housing 18, mobile outer cabin housing 19, outer cabin flange flat cover 6, fixing outer cabin thermofin 30 and mobile outer cabin thermofin 31.
Fixing outer cabin housing 18 be bottom with the cylindrical housings of flange, the top of fixing outer cabin housing 18, with barb 24, is fixed outer cabin housing 18 and outer cabin flange flat cover 6 and is bolted connection; In fixing outer cabin housing 18, be provided with fixing outer cabin thermofin 30,33 bottoms, interior cabin are solidificated in fixing outer cabin thermofin 30.
On outer cabin flange flat cover 6, have two threaded holes, the first electric connection 9 and the second electric connection 10 are installed respectively in two threaded holes; First under water high pressure resistant electric connection 12 with second under water high pressure resistant electric connection 13 by first signal cable 25, be connected with secondary signal cable 26 respectively with the second electric connection 10 with the first electric connection 9.
The first electric connection 9 and the second electric connection 10 outsides are separately installed with the first hard-disk interface circuit module 7 and the second hard-disk interface circuit module 8, the first hard-disk interface circuit module 7 is connected with the master station 1 of deep-water blowout preventer system with the second usb data line 5 by the first usb data line 4 respectively with the second hard-disk interface circuit module 8, and master station 1 is connected with microphone 3 by Audio Data Line 2.Microphone 3 is for gathering the various acoustic informations of deep-water blowout preventer system works.
In mobile outer cabin housing 19, be provided with mobile outer cabin thermofin 31, in mobile outer cabin thermofin 31, be provided with cavity, the shape of this cavity is identical with the shape on 33 tops, interior cabin, and this cavity and interior cabin 33 clearance fit, gap amount is less than 0.2 millimeter, and mobile outer cabin housing 19 can slide up and down along the top of interior cabin housing 29.Uniform eight ratchets 23 outside the bottom of mobile outer cabin housing 19, ratchet 23 moves down while inserting barb 24, can make fixing outer cabin housing 18 and mobile outer cabin housing 19 be fixed together.
Mouse-cage type fixed support 20, comprising: ten six roots of sensation brace summers 36 and circular top cover 37; Ten six roots of sensation brace summers 36 distribute along the even circumferential of circular top cover 37; The top of brace summer 36 is connected by bolt with circular top cover 37, and the bottom of brace summer 36 is welded on the flange of fixing outer cabin housing 18; Circular top cover 37 is connected with four nylon ropes 22 by eight springs 21 with mobile outer cabin housing 19.
Fixing outer cabin housing 18, mobile outer cabin housing 19 and outer cabin flange flat cover 6 are manufactured by 316L stainless steel, fixing outer cabin thermofin 30 and mobile outer cabin thermofin 31 are by nanometer level microporous heat-barrier material curing molding, fixing outer cabin thermofin 30 and mobile outer cabin thermofin 31 can guarantee that the black box of deep-water blowout preventer system is bearing 1000 celsius temperature one hour, 260 celsius temperatures are after ten hours, and main solid state hard disc 14 and backup solid state hard disc 15 still can normally be worked.
Main solid state hard disc 14 and backup solid state hard disc 15 are 22 pins, first under water high pressure resistant electric connection 12 and second under water high pressure resistant electric connection 13 be 22 pins, the first electric connection 9 and the second electric connection 10 are 22 pins, and first signal cable 25, secondary signal cable 26, the 3rd signal cable 27 and the 4th signal cable 28 are 22 cores.
During deep-water blowout preventer system works, temperature, pressure, flow, displacement, voltage, the current data of the programmable logic controller (PLC) PLC Real-time Collection preventer system of central control unit, master station 1 reads in the above-mentioned data that change from PLC, by the first usb data line 4 and first signal cable 25 and the 3rd signal cable 27, write on the main solid state hard disc 14 in black box; Meanwhile, the acoustic information that master station 1 collects microphone 3 writes on the main solid state hard disc 14 in black box with the same manner; Every ten minutes, system copied to the new data writing on main solid state hard disc 14 on backup solid state hard disc 15; Two solid state hard discs can be preserved seven up-to-date day data, and before seven days, data are timed deletion.
When deep-water blowout preventer system is normally worked, four nylon ropes 22 are tightened up, eight springs 21 on the outer cabin of the movement housing 19 of black box are compressed, now fixing outer cabin housing 18 is opened completely with mobile outer cabin housing 19, the heat that main solid state hard disc 14 and backup solid state hard disc 15 produce can import in surrounding air through the first heat radiator 16 and the second heat radiator 17, interior cabin housing 29, thereby cabin 33 internal temperatures in reducing, as shown in Figure 2.
When an oil well blew out and during platform breaking out of fire, four nylon ropes 22 are blown rapidly, and under 21 effects of eight springs, mobile outer cabin housing 19 moves down rapidly, ratchet 23 inserts in barb 24, and fixing outer cabin housing 18 and mobile outer cabin housing 19 are tightly fixed together.Fixing outer cabin thermofin 30 and mobile outer cabin thermofin 31 form a sealing thermofin, and the main solid state hard disc 14 in protection in cabin 33 and backup solid state hard disc 15 not Yin Gaowen burn, as shown in Figure 3.
When the black box of deep-water blowout preventer system sinks to marine with ocean platform; although outer cabin 34 is because of high pressure damage; but interior cabin housing 29, interior cabin flange flat cover 11; and under water the first high pressure resistant electric connection 12 and second under water high pressure resistant electric connection 13 all can bear 30MPa external pressure, can protect main solid state hard disc 14 and backup solid state hard disc 15 not because high pressure damages.The signal that search personnel can send according to subsea beacon 32, searches black box, according to the data that are recorded on main solid state hard disc 14 and backup solid state hard disc 15, further searches the culprit of deep-water blowout preventer system.
From said structure, the circuit module that gathers and process acoustic information is not to be positioned at black box, but gather and process acoustic information by microphone 3 and master station 1, the first hard-disk interface circuit module 7 and the second hard-disk interface circuit module 8 of main solid state hard disc 14 and backup solid state hard disc 15 are not to be positioned at black box simultaneously, but be placed on the outer cabin flange flat cover 6 of black box, thereby greatly reduced, be installed on the electronic devices and components quantity in cabin 33 in black box, reduced the temperature in thermal value and interior cabin 33, guarantee main solid state hard disc 14 and back up solid state hard disc 15 and can normally work.
By using above-mentioned Split double-layer section structure, can guarantee that the solid state hard disc in black box can dispel the heat smoothly when deep-water blowout preventer system is normally worked, in deep-water blowout preventer system, have an accident and when platform topples, can first stand high temperature and stand High Pressure again and do not damage.
Claims (5)
1. a black box for deep-water blowout preventer system, comprises interior cabin, outer cabin and mouse-cage type fixed support; It is characterized in that:
Interior cabin, comprising: interior cabin housing, interior cabin flange flat cover, main solid state hard disc and backup solid state hard disc;
Interior cabin housing is cylindrical shape, and bottom is with flange, and interior cabin housing and interior cabin flange flat cover are bolted connection; The top of interior cabin hull outside is provided with subsea beacon; Interior cabin flange flat cover is provided with two threaded holes, is separately installed with the first high pressure resistant electric connection and second high pressure resistant electric connection under water under water in two bolts hole; Main solid state hard disc and backup solid state hard disc are installed in interior cabin, main solid state hard disc is fixed on by four antirattle spring on the inwall and interior cabin flange flat cover of interior cabin housing, and backup solid state hard disc is fixed on the inwall and interior cabin flange flat cover of interior cabin housing by four antirattle spring; The first heat radiator is installed on main solid state hard disc, together with main solid state hard disc fits tightly with the first heat radiator, on backup solid state hard disc, the second heat radiator is installed, backup is together with solid state hard disc fits tightly with the second heat radiator, main solid state hard disc with first under water high pressure resistant electric connection by the 3rd signal cable, be connected; Backup solid state hard disc with second under water high pressure resistant electric connection by the 4th signal cable, be connected;
Outer cabin is split-type structural, comprising: fixing outer cabin housing, mobile outer cabin housing, outer cabin flange flat cover, fixing outer cabin thermofin and mobile outer cabin thermofin;
Fixing outer cabin housing be bottom with the cylindrical housings of flange, the top of fixing outer cabin housing, with barb, is fixed outer cabin housing and outer cabin flange flat cover and is bolted connection; In the housing of fixing outer cabin, be provided with fixing outer cabin thermofin, bottom, interior cabin is solidificated in the thermofin of fixing outer cabin;
On the flange flat cover of outer cabin, have two threaded holes, the first electric connection and the second electric connection are installed respectively in two threaded holes; First under water high pressure resistant electric connection with second under water high pressure resistant electric connection by first signal cable, be connected with secondary signal cable respectively with the second electric connection with the first electric connection;
The first electric connection and the second electric connection outside are separately installed with the first hard-disk interface circuit module and the second hard-disk interface circuit module, the first hard-disk interface circuit module is connected with the master station of deep-water blowout preventer system with the second usb data line by the first usb data line respectively with the second hard-disk interface circuit module, and master station is connected with microphone by Audio Data Line;
In the housing of mobile outer cabin, be provided with mobile outer cabin thermofin, in the thermofin of mobile outer cabin, be provided with cavity, the shape of this cavity is identical with the shape on top, interior cabin, the outside, bottom of mobile outer cabin housing is uniformly distributed eight ratchets, ratchet moves down while inserting barb, can make fixing outer cabin housing and mobile outer cabin housing be fixed together;
Mouse-cage type fixed support, comprising: ten six roots of sensation brace summer and circular top cover; Ten six roots of sensation brace summers distribute along the even circumferential of circular top cover; The top of brace summer is connected by bolt with circular top cover, and the bottom of brace summer is welded on the flange of fixing outer cabin housing; Circular top cover is connected with four nylon ropes by eight springs with mobile outer cabin housing.
2. the black box of deep-water blowout preventer system according to claim 1, is characterized in that:
Main solid state hard disc and backup solid state hard disc are 22 pins, first under water high pressure resistant electric connection and second under water high pressure resistant electric connection be 22 pins, the first electric connection and the second electric connection are 22 pins, and first signal cable, secondary signal cable, the 3rd signal cable and the 4th signal cable are 22 cores.
3. the black box of deep-water blowout preventer system according to claim 1, is characterized in that:
Fixing outer cabin housing, mobile outer cabin housing and outer cabin flange flat cover are manufactured by 316L stainless steel, and fixing outer cabin thermofin and mobile outer cabin thermofin are by nanometer level microporous heat-barrier material curing molding.
4. the black box of deep-water blowout preventer system according to claim 1, is characterized in that:
Interior cabin housing and interior cabin flange flat cover are manufactured by 310S stainless steel, can bear 30MPa external pressure.
5. the black box of deep-water blowout preventer system according to claim 1, is characterized in that:
Cavity and interior cabin clearance fit in the housing of mobile outer cabin, gap amount is less than 0.2 millimeter, and mobile outer cabin housing can slide up and down along the top of interior cabin housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699027.XA CN103632410B (en) | 2013-12-18 | 2013-12-18 | Black box of deepwater blowout preventer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699027.XA CN103632410B (en) | 2013-12-18 | 2013-12-18 | Black box of deepwater blowout preventer system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103632410A CN103632410A (en) | 2014-03-12 |
| CN103632410B true CN103632410B (en) | 2014-08-06 |
Family
ID=50213423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310699027.XA Active CN103632410B (en) | 2013-12-18 | 2013-12-18 | Black box of deepwater blowout preventer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103632410B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118656A (en) * | 2007-09-07 | 2008-02-06 | 上海神开石油化工装备股份有限公司 | Blowout preventer detecting recording apparatus |
| CN201106431Y (en) * | 2007-11-01 | 2008-08-27 | 中国石油天然气股份有限公司 | High temperature no-killing well working equipment |
| US8413716B2 (en) * | 2008-12-16 | 2013-04-09 | Hydril Usa Manufacturing Llc | Position data based method, interface and device for blowout preventer |
| US8720579B2 (en) * | 2010-07-15 | 2014-05-13 | Oceaneering International, Inc. | Emergency blowout preventer (EBOP) control system using an autonomous underwater vehicle (AUV) and method of use |
| CN101985874A (en) * | 2010-11-03 | 2011-03-16 | 上海神开石油化工装备股份有限公司 | Detection recording instrument for flashboard blowout preventer |
| CN102477859A (en) * | 2010-11-29 | 2012-05-30 | 上海神开石油化工装备股份有限公司 | Data recording module for remote consoles |
-
2013
- 2013-12-18 CN CN201310699027.XA patent/CN103632410B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103632410A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014172017A3 (en) | A source of electricity derived from a spent fuel cask | |
| DE102013205004A1 (en) | Black box, airplane with black box and method for reading flight data from a black box | |
| CN103632410B (en) | Black box of deepwater blowout preventer system | |
| Kamlaesan et al. | Analysis of transformer faults using IoT | |
| WO2015075426A2 (en) | Thermoelectric generator | |
| CN103399504A (en) | Motor controlling system | |
| CN104668278A (en) | Secret-related USB flash disc self-destruction device | |
| CN104678920A (en) | Data acquisition and analysis method | |
| CN105114383B (en) | A kind of new type of deep-water solenoid electric valve | |
| CN201425957Y (en) | Flame-retardant anti-explosion device of water-cooling type lithium ion battery | |
| CN103328761A (en) | Monitoring subsea installation | |
| CN205543499U (en) | Information security crossover sub | |
| US11199523B2 (en) | System and method for pantograph fault monitoring | |
| Young | Predicting failure of dynamic offshore cables by insulation breakdown due to water treeing | |
| CN203882351U (en) | Thermal protection flying parameter recorder | |
| CN202836626U (en) | Temperature and humidity monitoring system of spare submarine cable turnplate | |
| CN206432696U (en) | Blower fan rotor main electrical scheme case device for monitoring temperature | |
| Yu et al. | All-electric subsea production control system | |
| Dsouza | Asset management of offshore oil and gas installations | |
| Wang et al. | Review of urban high-voltage cable tunnel monitoring techniques | |
| CN208794060U (en) | Valve pit monitors system | |
| Lee et al. | Developing a historical typhoon database for the southeastern Chinese coastal provinces, 1951–2010 | |
| CN106151884A (en) | Buried oil and gas pipes warning monitoring system | |
| Eckerstorfer | Concepts of Downhole Power Generation during the Drilling Process in the Geothermal Industry | |
| CN205809852U (en) | Personal data safety storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |