CN104141283A - Automatic waterlogging prevention device used in transformer substation - Google Patents
Automatic waterlogging prevention device used in transformer substation Download PDFInfo
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- CN104141283A CN104141283A CN201410324595.6A CN201410324595A CN104141283A CN 104141283 A CN104141283 A CN 104141283A CN 201410324595 A CN201410324595 A CN 201410324595A CN 104141283 A CN104141283 A CN 104141283A
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- baffle plate
- switch
- level sensor
- flashboard
- relay
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Abstract
The invention relates to an automatic waterlogging prevention device used in a transformer substation. The automatic waterlogging prevention device comprises a baffle plate, a drainage channel, a protective flashboard and a water pump, wherein a driving device is arranged on the baffle plate; a first water level sensor and a second water level sensor are arranged on the baffle plate; a circuit board electrically connected with a motor and the water pump respectively are further arranged on the baffle plate. The automatic waterlogging prevention device has the advantages that the water level inside or outside the transformer substation is detected by the first water level sensor and the second water level sensor, and the work of the water pump or drainage of an original drainage channel is controlled through the driving device and the circuit board respectively according to the condition of the water level, so that the water level inside the transformer substation can be ensured at a normal state all the time, so that safe and reliable operation of power transformation equipment is guaranteed, the working strength and cost caused by a great deal of manpower and material resources required at present are reduced, the water level can be detected quickly and accurately in real time by the first water level sensor and the second water level sensor, and timely drainage of water can be ensured.
Description
Technical field
The present invention relates in a kind of Substation Station with the device of automatically preventing waterlogging.
Background technology
The existing drainage system of transformer station, is single water pump emission type, and in daily draining, the water yield is rare, can meet the requirement of prevention waterlogging water drainage completely.Once but meet with severe violent typhoon rainstorm weather, river level outside transformer station is during higher than transformer station, rain, river will by transformer station's internal drainage mouth pour in down a chimney inbound in, for the violent typhoon of frequently attacking in recent years, heavy showers is to electric substation, the water enchroachment (invasion) problem that particularly cable floor of hypsography low-lying brings, the total drainage outlet of transformer station's cable floor is often with to close on river course identical, the water level constantly raising, cause the phenomenon that river pours in down a chimney by drainage system to bring great pressure to the flood control and drainage in electric substation, also to rush repair, work has brought many constant.Simultaneously, under exceedingly odious weather, rush towards by O&M personnel the emergency disposal draining flooded fields in scene, also exist larger security risk, be placed on the total outfall of transformer station's cable floor by original sand hill that utilizes, the powerful water pump of artificial unlatching, the traditional approach such as multidisciplinary emergency cooperative, although in the time stoping drainage system to pour in down a chimney, effect is also comparatively obvious, but to manpower, material resources, it is all very harsh that rate request is disposed in reflection, in the whole society special event emergency disposal is required to more and more higher today, original transformer station flood control and drainage system can not meet our demand.
Summary of the invention
The technical problem to be solved in the present invention is to meet the emergent water drainage of high water level for the drainage system of existing transformer station, thereby a kind of interior prevention waterlogging device automatically of using of Substation Station of being convenient to automatically tackle water level in transformer station is provided.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: in a kind of Substation Station, use prevention waterlogging device automatically, comprise baffle plate, at least one is arranged on the drainage channel of baffle plate bottom, the top of described baffle plate is provided with one along movable for blocking the protection flashboard of drainage channel on baffle plate vertical direction, the bottom of described protection flashboard is higher than the top of drainage channel, in described protection flashboard, be provided with one and be convenient to the water pump that water is discharged, the bottom of described baffle plate is provided with the drainage pipe being connected with water pump, the top of described baffle plate is provided with the drive unit that drives the work of protection flashboard, the inside wall of described baffle plate is provided with first level sensor of being convenient to accessory drive work, the lateral wall of described baffle plate is provided with the second level sensor of restriction drive unit work, described drive unit comprises buncher, be fixedly connected on the wire spool on buncher, at least one is wrapped in the rope for being connected with protection flashboard on wire spool, on described baffle plate, be also provided with the circuit board being electrically connected with buncher and water pump respectively, on described circuit board, be respectively equipped with the first switch of control buncher work and control the second switch of pump working and control the first switch and the 3rd switch of second switch energising or disconnection, described the first switch and second switch are arranged in parallel on circuit board, described circuit board is provided with the first relay of controlling respectively the first switch closure and second switch disconnection, control the second relay of the first switch disconnection and second switch closure, control the 3rd relay that the 3rd switch disconnects, described circuit board is provided with the time relay of the second relay work of driving, described the first level sensor respectively with the first relay, the 3rd relay electrical connection, described the second level sensor is electrically connected with the 3rd relay.
Preferably, described baffle plate comprises upper cross plate, lower cross plate, for connecting the riser of upper cross plate and lower cross plate, described buncher is fixedly connected on the bottom of upper cross plate, described upper cross plate is provided with the seal closure of buncher sealing, described drainage channel is downward-sloping being arranged on riser from inside to outside, described circuit board is fixedly connected on the described riser in seal closure, described drainage pipe is arranged on lower cross plate, simple in structure, easy for installation, drainage effect is good, by drainage channel from inside to outside downward-sloping setting effectively reduced the water outside transformer station and poured in down a chimney to transformer station, drainage effect is good.
Preferably, the sidewall of described seal closure is provided with at least one heat elimination hole, the two ends sidewall of described seal closure is respectively equipped with one and controls the up and down gathering sill of protection flashboard, the top of described protection flashboard is provided with the gib block suitable with gathering sill, by the setting of heat elimination hole, can dispel the heat to the heat of buncher and circuit board generation timely, effectively avoid buncher and circuit board to be damaged, improve application life, security performance is high, by the setting of gathering sill and gib block, effectively ensure that protection flashboard does not swing in whereabouts or uphill process, sliding effect is good, be convenient to location and reset.
Preferably, described wire spool is provided with a rope, the top of described protection flashboard is provided with two suspension ring that are connected with rope, two suspension ring are symmetricly set on protection flashboard, one end of described rope is fixedly connected on one end of wire spool, the other end of described rope is arranged in the other end that is fixedly connected on wire spool after two suspension ring successively, described wire spool is provided with the fixing hole of stationary rope, described rope is provided with the clamping joint being connected with fixing hole, the setting of two suspension ring, ensure protection flashboard stationarity in the time hoisting, rope is fixedly connected on wire spool by clamping joint, connect reliable, easy installation and removal, be convenient to regulate the length of rope, Practical Performance is good.
Preferably, in described drainage channel, be provided with sedimentary fan blade in energy Automatic clearance drainage channel, described fan blade is rotatably connected in drainage channel by rotating shaft, rotate in rotating shaft by mobile water-driven fan blade, ensured that sediment is got rid of with water in drainage procedure, avoided drainage channel sediment to pile up and it is stopped up, drainage effect is good, stability is good, simple in structure.
Preferably, on described baffle plate below the first level sensor, be provided with at least one for clearing up the sedimentary scraper on baffle plate, can well clear up the sediment that baffle plate is provided with, reduce sediment and stopped up the precision that the first level sensor detects, ensured that water potential gets rid of in time, security performance is high.
Preferably, the bottom of the top of described lower cross plate and protection flashboard is provided with at least one group protection flashboard is fixed on to draw-in groove and the buckle on lower cross plate, the step that flashboard is placed is convenient to protect in the top of described draw-in groove, described drainage pipe is provided with control valve, described lower cross plate is provided with that drive control valve is opened or closed infrared ray sensor, can well ensure to protect flashboard is fixedly connected with lower cross plate, in the situation of effectively having avoided drainage channel not exclusively to seal, carry out water pump draining, having reduced the outer water of Substation Station pours in down a chimney to Substation Station, drainage effect is good, the work of infrared ray sensor drive control valve, thereby make water pump draining, control accuracy is high, stability is good.
Preferably, also comprise PLC control device, described PLC control device is provided with the warning device being connected with the first level sensor, can well remind staff that water level situation is monitored and observed by warning device, improved security performance, Practical Performance is high, and PLC control device control accuracy is high, performance is convenient to Long-distance Control well flexibly, controls effective.
In sum, advantage of the present invention: the water level in transformer station or outside transformer station is detected according to the first level sensor and the second level sensor, and carry out draining by drive unit and circuit board control pump working or original drainage channel respectively according to the situation of water level, can ensure that water level in electric substation station is all the time in normal condition, ensure the safety of converting equipment, reliability service, working strength and cost that a large amount of man power and material of existing needs brings are reduced, the first level sensor and the second level sensor can carry out in real time water level, fast, detect accurately, ensure that water can discharge timely, and by the first relay, the second relay, the 3rd relay is controlled respectively the working condition of water pump and motor, performance is high flexibly, can meet the flood control and drainage under various forms, drive unit is controlled the work of protection flashboard automatically, can well avoid needing O&M personnel risk to rush towards the risk that substation field is disposed under exceedingly odious weather, in having improved power supply reliability, the economic and social benefit bringing is long-term, continue with huge.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation with the device of automatically preventing waterlogging in a kind of Substation Station of the present invention;
Fig. 2 is the structural representation that drive unit of the present invention is connected with protection flashboard;
Fig. 3 is the structural representation of circuit board of the present invention.
Detailed description of the invention
As Fig. 1, Fig. 2, shown in Fig. 3, in a kind of Substation Station, use prevention waterlogging device automatically, comprise baffle plate 1, at least one is arranged on the drainage channel 2 of baffle plate 1 bottom, the top of described baffle plate 1 is provided with one along movable for blocking the protection flashboard 3 of drainage channel 2 on baffle plate 1 vertical direction, the bottom of described protection flashboard 3 is higher than the top of drainage channel 2, in described protection flashboard 3, be provided with one and be convenient to the water pump 30 that water is discharged, the bottom of described baffle plate 1 is provided with the drainage pipe 10 being connected with water pump 30, the top of described baffle plate 1 is provided with the drive unit 4 that drives protection flashboard 3 to work, the inside wall of described baffle plate 1 is provided with one and is convenient to the first level sensor 14 that accessory drive 4 is worked, the lateral wall of described baffle plate 1 is provided with the second level sensor 15 that a restriction drive unit 4 is worked, described drive unit 4 comprises buncher 41, be fixedly connected on the wire spool 42 on buncher 41, at least one is wrapped in the rope 43 for being connected with protection flashboard 3 on wire spool 42, on described baffle plate 1, be also provided with the circuit board 7 being electrically connected with buncher 41 and water pump 30 respectively, on described circuit board 7, be respectively equipped with and control the first switch 71 that buncher 41 works and control the second switch 72 that water pump 30 works and control the first switch 71 and the 3rd switch 73 that second switch 72 is switched on or disconnected, described the first switch 71 and second switch 72 are arranged in parallel on circuit board 7, described circuit board 7 is provided with and controls respectively the first relay 74 that the first switch 71 closures and second switch 72 disconnect, control that the first switch 71 disconnects and the second relay 75 of second switch 72 closures, control the 3rd relay 76 that the 3rd switch 73 disconnects, described circuit board 7 is provided with the time relay 77 that drives the second relay 75 to work, described the first level sensor 14 respectively with the first relay 74, the 3rd relay 76 is electrically connected, described the second level sensor 15 is electrically connected with the 3rd relay 76, the setting-up time of the described time relay 77 is 25～35s, described baffle plate 1 comprises upper cross plate 11, lower cross plate 12, for connecting the riser 13 of upper cross plate 11 and lower cross plate 12, described buncher 41 is fixedly connected on the bottom of upper cross plate 11, described upper cross plate 11 is provided with the seal closure 6 that buncher 41 is sealed, described drainage channel 2 is downward-sloping being arranged on riser 13 from inside to outside, described circuit board 7 is fixedly connected on the described riser 13 in seal closure 6, described drainage pipe 10 is arranged on lower cross plate 12, simple in structure, easy for installation, drainage effect is good, by drainage channel 2 from inside to outside downward-sloping setting effectively reduced the water outside transformer station and poured in down a chimney to transformer station, drainage effect is good, the sidewall of described seal closure 6 is provided with at least one heat elimination hole 60, the two ends sidewall of described seal closure 6 is respectively equipped with one and controls the up and down gathering sill 61 of protection flashboard 3, the top of described protection flashboard 3 is provided with the gib block suitable with gathering sill 35, by the setting of heat elimination hole 60, the heat can be timely buncher 41 and circuit board 7 being produced dispels the heat, effectively avoid buncher 41 and circuit board 7 to be damaged, improve application life, security performance is high, by the setting of gathering sill 61 and gib block 35, effectively ensure that protection flashboard 3 does not swing in whereabouts or uphill process, sliding effect is good, be convenient to location and reset, described wire spool 42 is provided with a rope 43, the top of described protection flashboard 3 is provided with two suspension ring 34 that are connected with rope 43, two suspension ring 34 are symmetricly set on protection flashboard 3, one end of described rope 43 is fixedly connected on one end of wire spool 42, the other end of described rope 43 is arranged in the other end that is fixedly connected on wire spool 42 after two suspension ring 34 successively, described wire spool 42 is provided with the fixing hole 421 of stationary rope 43, described rope 43 is provided with the clamping joint 431 being connected with fixing hole 421, the setting of two suspension ring 43, ensure protection flashboard 3 stationarity in the time hoisting, rope 43 is fixedly connected on wire spool 42 by clamping joint, connect reliable, easy installation and removal, be convenient to regulate the length of rope 43, Practical Performance is good, in described drainage channel 2, be provided with energy Automatic clearance drainage channel 2 interior sedimentary fan blades 8, described fan blade 8 is rotatably connected in drainage channel 2 by rotating shaft 81, rotate in rotating shaft 81 by mobile water-driven fan blade 8, ensure that sediment is got rid of with water in drainage procedure, avoid drainage channel 2 sediments pile up and it is stopped up, drainage effect is good, stability is good, simple in structure, on described baffle plate 1 below the first level sensor 14, be provided with at least one for clearing up the sedimentary scraper 16 on baffle plate 1, can well clear up the sediment that baffle plate 1 is provided with, reduce sediment and stopped up the precision that the first level sensor 14 detects, ensure that water potential gets rid of in time, security performance is high, the bottom of the top of described lower cross plate 12 and protection flashboard 3 is provided with at least one group protection flashboard 3 is fixed on to the draw-in groove 32 and buckle 31 on lower cross plate 12, the step 33 that flashboard 3 is placed is convenient to protect in the top of described draw-in groove 32, described drainage pipe 10 is provided with control valve 18, described lower cross plate 12 is provided with that drive control valve 18 is opened or closed infrared ray sensor 17, can well ensure to protect flashboard 3 is fixedly connected with lower cross plate 12, in the situation of effectively having avoided drainage channel 2 not exclusively to seal, carry out water pump 30 drainings, having reduced the outer water of Substation Station pours in down a chimney to Substation Station, drainage effect is good, the work of infrared ray sensor drive control valve, thereby make water pump 30 drainings, control accuracy is high, stability is good, also comprise PLC control device, described PLC control device is provided with the warning device being connected with the first level sensor 14, can well remind staff that water level situation is monitored and observed by warning device, improve security performance, Practical Performance is high, PLC control device control accuracy is high, performance is convenient to well Long-distance Control flexibly, control effective.
Riser 13 is arranged in transformer station, when use, in the time that the first level sensor 14 detects water level higher than the position at the first level sensor 14 places, the first level sensor 14 drives respectively the first relay 74 and the 3rd relay 76 to work, make the first switch 71 drive buncher 41 to work, making to protect flashboard 3 moves down, after infrared ray sensor 17 detects that protection flashboard 3 and lower cross plate 12 are fixing, the time relay 77 drives the second relay 75 to work, water pump 30 is discharged by drainage pipe 10 water in transformer station, in the time that the second level sensor 15 detects water level lower than the position at the second level sensor 15 places, surface in transformer station in daily normal hull-borne, motor 41 quits work with water pump 30, the drainage channel 2 that water in transformer station is provided with by baffle plate 1 is got rid of, operate successively, just can well carry out draining according to the situation of water level.
According to the first level sensor and the second level sensor, the water level in transformer station or outside transformer station is detected, and carry out draining by drive unit and circuit board control pump working or original drainage channel respectively according to the situation of water level, can ensure that water level in electric substation station is all the time in normal condition, ensure the safety of converting equipment, reliability service, working strength and cost that a large amount of man power and material of existing needs brings are reduced, the first level sensor and the second level sensor can carry out in real time water level, fast, detect accurately, ensure that water can discharge timely, and by the first relay, the second relay, the 3rd relay is controlled respectively the working condition of water pump and motor, performance is high flexibly, can meet the flood control and drainage under various forms, drive unit is controlled the work of protection flashboard automatically, can well avoid needing O&M personnel risk to rush towards the risk that substation field is disposed under exceedingly odious weather, in having improved power supply reliability, the economic and social benefit bringing is long-term, continue with huge.
Claims (8)
1. in a Substation Station, use prevention waterlogging device automatically, comprise baffle plate (1), at least one is arranged on the drainage channel (2) of baffle plate (1) bottom, it is characterized in that: the top of described baffle plate (1) is provided with one along movable for blocking the protection flashboard (3) of drainage channel (2) on baffle plate (1) vertical direction, the bottom of described protection flashboard (3) is higher than the top of drainage channel (2), in described protection flashboard (3), be provided with one and be convenient to the water pump (30) that water is discharged, the bottom of described baffle plate (1) is provided with the drainage pipe (10) being connected with water pump (30), the top of described baffle plate (1) is provided with the drive unit (4) that drives protection flashboard (3) work, the inside wall of described baffle plate (1) is provided with first level sensor (14) of being convenient to accessory drive (4) work, the lateral wall of described baffle plate (1) is provided with second level sensor (15) of a restriction drive unit (4) work, described drive unit (4) comprises buncher (41), be fixedly connected on the wire spool (42) on buncher (41), at least one is wrapped in the upper rope (43) for being connected with protection flashboard (3) of wire spool (42), on described baffle plate (1), be also provided with the circuit board (7) being electrically connected with buncher (41) and water pump (30) respectively, on described circuit board (7), be respectively equipped with and control the first switch (71) and the second switch (72) of control water pump (30) work and the 3rd switch (73) of control the first switch (71) energising or disconnection and second switch (72) energising or disconnection that buncher (41) is worked, described the first switch (71) and second switch (71) are arranged in parallel on circuit board (7), described circuit board (7) is provided with the first relay (74) of controlling respectively the first switch (71) closure and second switch (72) disconnection, control the second relay (75) that the first switch (71) disconnects and second switch (72) is closed, control the 3rd relay (76) that the 3rd switch (73) disconnects, described circuit board (7) is provided with the time relay (77) that drives the second relay (75) work, described the first level sensor (14) respectively with the first relay (74), the 3rd relay (76) electrical connection, described the second level sensor (15) is electrically connected with the 3rd relay (76).
2. in a kind of Substation Station according to claim 1, use prevention waterlogging device automatically, it is characterized in that: described baffle plate (1) comprises upper cross plate (11), lower cross plate (12), be used for connecting the riser (13) of upper cross plate (11) and lower cross plate (12), described buncher (41) is fixedly connected on the bottom of upper cross plate (11), described upper cross plate (11) is provided with the seal closure (6) of buncher (41) sealing, described drainage channel (2) is downward-sloping being arranged on riser (13) from inside to outside, described circuit board (7) is fixedly connected on the described riser (13) in seal closure (6), described drainage pipe (10) is arranged on lower cross plate (12).
3. in a kind of Substation Station according to claim 2, use prevention waterlogging device automatically, it is characterized in that: the sidewall of described seal closure (6) is provided with at least one heat elimination hole (60), the two ends sidewall of described seal closure (6) is respectively equipped with one and controls the up and down gathering sill (61) of protection flashboard (3), and the top of described protection flashboard (3) is provided with the gib block (35) suitable with gathering sill (61).
4. in a kind of Substation Station according to claim 3, use prevention waterlogging device automatically, it is characterized in that: described wire spool (42) is provided with a rope (43), the top of described protection flashboard (3) is provided with two suspension ring (34) that are connected with rope (43), two suspension ring (34) are symmetricly set on protection flashboard (3), one end of described rope (43) is fixedly connected on one end of wire spool (42), the other end of described rope (43) is arranged in the other end that is fixedly connected on wire spool (42) after two suspension ring (34) successively, described wire spool (42) is provided with the fixing hole (421) of stationary rope (43), described rope (43) is provided with the clamping joint (431) being connected with fixing hole (421).
5. in a kind of Substation Station according to claim 3, use prevention waterlogging device automatically, it is characterized in that: in described drainage channel (2), be provided with sedimentary fan blade (8) in energy Automatic clearance drainage channel (2), described fan blade (8) is rotatably connected in drainage channel (2) by rotating shaft (81).
6. in a kind of Substation Station according to claim 3, use prevention waterlogging device automatically, it is characterized in that: on the described baffle plate (1) of the first level sensor (14) below, be provided with at least one for clearing up the sedimentary scraper (16) on baffle plate (1).
7. in a kind of Substation Station according to claim 3, use prevention waterlogging device automatically, it is characterized in that: the bottom of the top of described lower cross plate (12) and protection flashboard (3) is provided with at least one group and will protect flashboard (3) and be fixed on draw-in groove (32) on lower cross plate (12) and buckle (31), the step (33) that flashboard (3) is placed is convenient to protect in the top of described draw-in groove (32), described drainage pipe (10) is provided with control valve (18), described lower cross plate (12) is provided with that drive control valve (18) is opened or closed infrared ray sensor (17).
8. in a kind of Substation Station according to claim 3, use prevention waterlogging device automatically, it is characterized in that: also comprise PLC control device, described PLC control device is provided with the warning device being connected with the first level sensor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410324595.6A CN104141283B (en) | 2014-07-09 | 2014-07-09 | With device of automatically preventing waterlogging in a kind of Substation Station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410324595.6A CN104141283B (en) | 2014-07-09 | 2014-07-09 | With device of automatically preventing waterlogging in a kind of Substation Station |
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| Publication Number | Publication Date |
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| CN104141283A true CN104141283A (en) | 2014-11-12 |
| CN104141283B CN104141283B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410324595.6A Active CN104141283B (en) | 2014-07-09 | 2014-07-09 | With device of automatically preventing waterlogging in a kind of Substation Station |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107939097A (en) * | 2017-12-07 | 2018-04-20 | 温州泓呈祥科技有限公司 | A kind of substation's underground drainage facilities based on four-bladed vane |
| CN108468369A (en) * | 2018-04-06 | 2018-08-31 | 陈秀珍 | A kind of substation's water level early warning drainage arrangement |
| CN109610605A (en) * | 2018-12-12 | 2019-04-12 | 国网山东省电力公司临沂供电公司 | A kind of waterproof soaking system and test |
| CN110029630A (en) * | 2018-10-30 | 2019-07-19 | 黄河勘测规划设计有限公司 | Across the multi-functional one-way door type headstock gear of removing contamination of following formula |
| CN113673758A (en) * | 2021-08-17 | 2021-11-19 | 广东电网有限责任公司 | Method and device for preventing transformer substation from flooding |
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| CN203560073U (en) * | 2013-11-12 | 2014-04-23 | 国家电网公司 | Intelligent drainage control system |
| CN203669074U (en) * | 2013-12-02 | 2014-06-25 | 国家电网公司 | Drainage system of cable duct of transformer substation |
| CN204023484U (en) * | 2014-07-09 | 2014-12-17 | 国家电网公司 | In a kind of Substation Station, use prevention waterlogging device automatically |
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| JPH1011151A (en) * | 1996-06-26 | 1998-01-16 | Hitachi Ltd | River administration facility operation guidance system |
| CN103669994A (en) * | 2012-09-12 | 2014-03-26 | 新疆电力公司昌吉电业局 | Transformer substation blocking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939097A (en) * | 2017-12-07 | 2018-04-20 | 温州泓呈祥科技有限公司 | A kind of substation's underground drainage facilities based on four-bladed vane |
| CN108468369A (en) * | 2018-04-06 | 2018-08-31 | 陈秀珍 | A kind of substation's water level early warning drainage arrangement |
| CN110029630A (en) * | 2018-10-30 | 2019-07-19 | 黄河勘测规划设计有限公司 | Across the multi-functional one-way door type headstock gear of removing contamination of following formula |
| CN109610605A (en) * | 2018-12-12 | 2019-04-12 | 国网山东省电力公司临沂供电公司 | A kind of waterproof soaking system and test |
| CN109610605B (en) * | 2018-12-12 | 2021-04-09 | 国网山东省电力公司临沂供电公司 | Waterproof system that soaks |
| CN113673758A (en) * | 2021-08-17 | 2021-11-19 | 广东电网有限责任公司 | Method and device for preventing transformer substation from flooding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104141283B (en) | 2016-03-02 |
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