CN115738134A - Intelligent smoke exhaust system suitable for offshore converter station and control method - Google Patents
Intelligent smoke exhaust system suitable for offshore converter station and control method Download PDFInfo
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- CN115738134A CN115738134A CN202211443893.8A CN202211443893A CN115738134A CN 115738134 A CN115738134 A CN 115738134A CN 202211443893 A CN202211443893 A CN 202211443893A CN 115738134 A CN115738134 A CN 115738134A
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- 239000000779 smoke Substances 0.000 title claims abstract description 258
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000003517 fume Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The invention provides an intelligent smoke exhaust system suitable for an offshore converter station and a control method, wherein an inner corridor of the offshore converter station is divided into a plurality of independent smoke exhaust subareas, a smoke blocking vertical wall is arranged between every two adjacent independent smoke exhaust subareas, and an electric smoke exhaust valve and a smoke detector are arranged in each smoke exhaust subarea; the electric smoke exhaust valve is connected with the smoke exhaust fan; a control system is arranged in the offshore converter station, the control system is respectively connected with the fire alarm system and the video monitoring system through network cables, the control system is in signal connection with a remote monitoring background, and the control system is connected with the smoke detector; a 280 ℃ smoke discharge fire valve is arranged on the smoke discharge fan, and the 280 ℃ smoke discharge fire valve is connected with a control system line; and an electric air valve is arranged in the corridor in the offshore converter station and is connected with a control system line. Aiming at the condition that the corridor area in the offshore converter station is large, the invention carries out targeted smoke exhaust by dividing the smoke exhaust subareas, thereby improving the system operation efficiency.
Description
Technical Field
The invention relates to the field of offshore wind power generation, in particular to an intelligent smoke exhaust system suitable for an offshore converter station and a control method.
Background
At present, most 220kV offshore booster stations in offshore wind power plants designed in China are located in 50km offshore areas and are sent out by adopting alternating current submarine cables, with further development of deep and far sea resources, the technical economy of a flexible direct current sending scheme is more outstanding, namely, an offshore converter station is built in the deep and far sea areas, electric energy generated by a wind turbine generator is collected in the offshore converter station, and the electric energy is rectified and then sent to an onshore converter station through the direct current submarine cables and then is accessed to a system transformer substation. The offshore converter station is large in size, comprises a converter valve, a connecting transformer, a valve cooling system and other equipment rooms, an inner corridor channel with a large area needs to be arranged on each layer, smoke emission needs to be carried out in time under the condition of a fire disaster, and the safety of entering of personnel is guaranteed. Conventional marine booster station is because compact structure, interior corridor area is less, and the system of discharging fume does not set up smoke exhaust fan and electronic blast gate, only through opening of discharge fume valve, adopts the natural draft mode to discharge fume, can't be applicable to the great interior corridor of marine converter station area, is difficult to be applicable to the fortune dimension demand of marine unmanned on duty platform.
Disclosure of Invention
In view of the shortcomings in the prior art, a first object of the present invention is to provide an intelligent smoke evacuation system suitable for an offshore converter station. Aiming at the condition that the corridor area in the offshore converter station is large, the targeted smoke exhaust is carried out by dividing the smoke exhaust subareas, and the system operation efficiency is improved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides an intelligence system of discharging fume suitable for marine current conversion station which characterized in that: the corridor in the offshore converter station of the offshore converter station is divided into a plurality of independent smoke discharge subareas, a smoke blocking vertical wall is arranged between every two adjacent independent smoke discharge subareas, and an electric smoke discharge valve and a smoke detector are arranged in each smoke discharge subarea; the electric smoke exhaust valve is connected with the smoke exhaust fan; a control system is arranged in the offshore converter station, the control system is respectively connected with the fire alarm system and the video monitoring system through network cables, the control system is in signal connection with a remote monitoring background, and the control system is connected with the smoke detector; the smoke exhaust fan is provided with a 280 ℃ smoke exhaust fire valve, and the 280 ℃ smoke exhaust fire valve is connected with a control system through a circuit; and an electric air valve is arranged in the corridor in the offshore converter station and is connected with a control system line.
Further: the control system is connected with a remote monitoring background of a central control room of the onshore centralized control center through the optical communication equipment between sea and land.
Further: the control system comprises a central control system and local control units, wherein the local control units are arranged in each smoke exhaust subarea and are correspondingly connected with an electric smoke exhaust valve, a smoke exhaust fan and a smoke detector in the smoke exhaust subarea through lines; and the electric air valve is connected with each local control unit in the corresponding smoke exhaust subarea through a line.
Further: and each corner of the corridor in the offshore converter station is provided with a smoke exhaust vertical pipe, and the top outlet of each smoke exhaust vertical pipe is connected with a smoke exhaust fan.
And further: the electric smoke exhaust valves of two adjacent smoke exhaust subareas are converged and connected into the smoke exhaust vertical pipe through a single smoke exhaust pipeline.
Further: the smoke exhaust fan is arranged on an outdoor deck, and the 280-DEG C smoke exhaust fire prevention valve is connected with each local control unit in the corresponding smoke exhaust subarea through a line.
Further: the central control system comprises a monitoring workstation and a network switch, and the monitoring workstation is connected with the fire alarm system, the video monitoring system, the remote monitoring background and each local control unit through the network switch.
A control method suitable for an intelligent smoke exhaust system of an offshore converter station is adopted, wherein the control system has two control modes of manual operation and automatic operation, and comprises the following steps:
the control system is in an automatic state:
initializing the equipment state, closing the electric smoke exhaust valve, stopping the smoke exhaust fan, normally opening the 280 ℃ smoke exhaust fireproof valve, closing the electric air valve, and acquiring state signals of the electric smoke exhaust valve, the smoke exhaust fan, the 280 ℃ smoke exhaust fireproof valve and the electric air valve in the current corresponding smoke exhaust subarea by each local control unit and sending the state signals to the central control system;
the central control system receives an alarm signal of a fire alarm system; the central control system receives the smoke concentration signals of the intelligent smoke detector through each local control unit;
when the central control system obtains a smoke concentration overhigh signal of a single smoke exhaust subarea or an alarm signal of a fire alarm system, the central control system displays the states of an electric smoke exhaust valve, a smoke exhaust fan and an electric air valve in the corresponding smoke exhaust subarea, switches a video picture of the corresponding smoke exhaust subarea through the video monitoring system, and sends a smoke exhaust starting signal to remind operation and maintenance personnel of paying attention;
the central control system sends an instruction to the corresponding smoke exhaust subarea local control unit, and the local control unit is linked to open a smoke exhaust fan, an electric smoke exhaust valve and an electric air valve which correspond to the smoke exhaust subareas;
the central control system receives a remote stop signal of the remote monitoring background and stops the smoke exhaust system; or when the temperature of the smoke exhaust subarea exceeds 280 ℃ due to a serious fire condition, the 280 ℃ smoke exhaust fireproof valve is automatically turned off, the smoke exhaust fan is linked to stop, each local control unit controls the electric air valve to be turned off, and the smoke exhaust system stops;
the control system is in a manual state:
initializing the equipment state, closing the electric smoke exhaust valve, stopping the smoke exhaust fan, normally opening the 280 ℃ smoke exhaust fire damper, closing the electric air valve, and acquiring state signals of the electric smoke exhaust valve, the smoke exhaust fan, the 280 ℃ smoke exhaust fire damper and the electric air valve in the current corresponding smoke exhaust subarea by each local control unit and sending the state signals to the central control system;
the central control system receives a remote starting signal of a remote monitoring background and starts a smoke exhaust system;
the central control system receives a remote stop signal of the remote monitoring background and stops the smoke exhaust system; or when the temperature of the smoke exhaust subarea exceeds 280 ℃ due to a serious fire condition, the 280 ℃ smoke exhaust fireproof valve is naturally closed, the smoke exhaust fan is linked to stop, and each local control unit controls the electric air valve to be closed and the smoke exhaust system to stop.
Compared with the prior art, the invention has the following advantages and beneficial effects:
aiming at the condition that the corridor area in the offshore converter station is large, the targeted smoke exhaust is carried out by dividing the smoke exhaust subareas, so that the system operation efficiency is improved; the smoke exhaust fan and the electric air valve are arranged, so that the smoke exhaust amount is more efficiently improved, and operation and maintenance personnel can conveniently enter the operation of the offshore converter station.
The intelligent smoke exhaust system is provided with an independent control system, the smoke concentration is timely and effectively sensed by arranging the intelligent smoke sensing detection terminal, and the smoke exhaust fan and the electric air valve are arranged, so that the operation efficiency of the system is improved; simultaneously through the linkage with video monitor system and remote monitoring's setting, be convenient for operation and maintenance personnel are at the onshore real time monitoring scene condition of discharging fume.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic view of the arrangement of the smoke exhaust fans on the outdoor deck of the present invention;
FIG. 3 is a schematic diagram of the control system connections of the fume extraction system of the present invention;
fig. 4 is a flow chart of a control method of the smoke exhaust system of the invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present invention; for the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
The invention is further described with reference to the following figures and examples, which are not to be construed as limiting the invention.
As shown in figures 1 to 4, the intelligent smoke exhaust system suitable for the offshore converter station is characterized in that an inner corridor 7 of the offshore converter station is divided into a plurality of independent smoke exhaust partitions 8, and the area of each smoke exhaust partition 8 is not more than 100m 2 A smoke blocking vertical wall 4 is arranged between two adjacent independent smoke exhaust subareas 8, and an electric smoke exhaust valve 1 and a smoke detector 6 are arranged in each smoke exhaust subarea 8; the electric smoke exhaust valve 1 is connected with the smoke exhaust fan 2; a control system is arranged in the offshore converter station, the control system is respectively connected with a fire alarm system 11 and a video monitoring system 12 through network cables, the video monitoring system is a common image monitoring means for the offshore platform, and the offshore platform is monitored in real time through a camera and a background. The control system is in signal connection with a remote monitoring background 14 and is connected with the smoke detector 6; the smoke exhaust fan 2 is provided with a 280 ℃ smoke exhaust fireproof valve 21, and the 280 ℃ smoke exhaust fireproof valve 21 is connected with a control system line; and an electric air valve 3 is arranged in the corridor 7 in the offshore converter station, and the electric air valve 3 is connected with a control system line. The smoke detector 6 adopts smoke senseThe known spherical camera is provided with double detection channels for smoke detection and visible light detection, and when any channel detects that the smoke concentration is too high, an alarm signal can be sent out.
The control system is connected with a remote monitoring background 14 of a central control room of a land centralized control center through an optical communication device 13 between sea and land.
The control system comprises a central control system 51 and local control units 52, each local control unit 52 is arranged in each smoke exhaust subarea 8, and each local control unit 52 is correspondingly connected with the electric smoke exhaust valve 1, the smoke exhaust fan 2 and the smoke detector 6 in the smoke exhaust subarea 8 through circuits; the electric dampers 3 are connected to the local control units 52 in the corresponding smoke evacuation sections 8 by lines. The electric air valve 3 is used for supplying air to the smoke exhaust fan 2, and the electric air valve 3 is connected with each local control unit 52 in the corresponding smoke exhaust subarea 8 through a circuit.
The central control system 51 collects the smoke concentration of the smoke detector 6 via the respective local control unit 52. The central control system 51 receives the start signals of the fire alarm system 11 and the remote monitoring background 14, sends the action instructions to the local control units 52, and switches the video pictures of the corresponding smoke exhaust subareas 8 in linkage with the video monitoring system 12.
And each corner of the corridor 7 in the offshore converter station is provided with a smoke exhaust vertical pipe 10, and the top outlet of the smoke exhaust vertical pipe 10 is connected with a smoke exhaust fan 2.
The electric smoke exhaust valves 1 of two adjacent smoke exhaust subareas 8 are converged and connected into a smoke exhaust vertical pipe 10 through a single smoke exhaust pipeline 9.
The smoke exhaust fan 2 is arranged on an outdoor deck, and the 280 ℃ smoke exhaust fire damper 21 is connected with each local control unit 52 in the corresponding smoke exhaust subarea 8 through a line. When the temperature exceeds 280 ℃ due to serious fire conditions, the 280 ℃ smoke exhaust fire prevention valve 21 is naturally turned off, and the smoke exhaust fan 2 stops running along with the smoke exhaust fire prevention valve, so that equipment damage is avoided.
The central control system 51 comprises a monitoring workstation 511 and a network switch 512, wherein the monitoring workstation 511 is connected with the fire alarm system 11, the video monitoring system 12, the remote monitoring background 14 and the local control units 52 through the network switch 512.
A control method suitable for an intelligent smoke exhaust system of an offshore converter station is adopted, wherein the control system has two control modes of manual operation and automatic operation, and comprises the following steps:
the control system is in an automatic state:
(1) The control system is in an automatic state:
initializing the equipment state, closing the electric smoke exhaust valve 1, stopping the smoke exhaust fan 2, normally opening the 280 ℃ smoke exhaust fire damper 21, closing the electric air valve 3, and acquiring state signals of the electric smoke exhaust valve 1, the smoke exhaust fan 2, the 280 ℃ smoke exhaust fire damper 21 and the electric air valve 3 in the current corresponding smoke exhaust subarea 8 by each local control unit 52 and sending the state signals to the central control system 51;
the central control system 51 receives the alarm signal of the fire alarm system 11; the central control system 51 receives the smoke concentration signal of the intelligent smoke detector 6 through each local control unit 52;
when the central control system 51 obtains a smoke concentration overhigh signal of a single smoke exhaust subarea 8 or an alarm signal of the fire alarm system 11, the central control system 51 displays the states of the electric smoke exhaust valve 1, the smoke exhaust fan 2 and the electric air valve 3 in the corresponding smoke exhaust subarea 8, switches the video pictures of the corresponding smoke exhaust subarea 8 through the video monitoring system 12, and sends a smoke exhaust starting signal to remind operation and maintenance personnel of paying attention;
the central control system 51 sends an instruction to the local control unit 52 of the corresponding smoke exhaust subarea 8, and the local control unit 52 starts the smoke exhaust fan 2, the electric smoke exhaust valve 1 and the electric air valve 3 corresponding to the smoke exhaust subarea 8 in a linkage manner;
the central control system 51 receives a remote stop signal of the remote monitoring background 13 and stops the smoke exhaust system; or when the temperature of the smoke exhaust subarea 8 exceeds 280 ℃ due to serious fire conditions, the 280 ℃ smoke exhaust fire damper 21 is automatically turned off and is linked with the smoke exhaust fan 2 to stop, each local control unit 52 controls the electric air valve 3 to be closed, and the smoke exhaust system stops;
(2) The control system is in a manual state:
initializing the equipment state, closing the electric smoke exhaust valve 1, stopping the smoke exhaust fan 2, normally opening the 280 ℃ smoke exhaust fire damper 21, closing the electric air valve 3, and acquiring state signals of the electric smoke exhaust valve 1, the smoke exhaust fan 2, the 280 ℃ smoke exhaust fire damper 21 and the electric air valve 3 in the current corresponding smoke exhaust subarea 8 by each local control unit 52 and sending the state signals to the central control system 51;
the central control system 51 receives a remote starting signal of the remote monitoring background 14 and starts the smoke exhaust system;
the central control system 51 receives a remote stop signal of the remote monitoring background 13 and stops the smoke exhaust system; or when the temperature of the smoke exhaust subarea 8 exceeds 280 ℃ due to serious fire conditions, the smoke exhaust fireproof valve 21 at 280 ℃ is naturally closed, the smoke exhaust fan 2 is linked to stop, and each local control unit 52 controls the electric air valve 3 to close, so that the smoke exhaust system stops.
In the steps, the double-criterion judgment of the smoke detector signal and the fire alarm signal is realized by presetting the action logic of the smoke exhaust system.
According to the description and the drawings of the invention, a person skilled in the art can easily manufacture or use the intelligent smoke exhaust system and the control method for the offshore converter station, and can generate the positive effects recorded in the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (8)
1. The utility model provides an intelligence system of discharging fume suitable for marine current conversion station which characterized in that: an inner corridor (7) of the offshore converter station is divided into a plurality of independent smoke exhaust subareas (8), a smoke blocking vertical wall (4) is arranged between every two adjacent independent smoke exhaust subareas (8), and an electric smoke exhaust valve (1) and a smoke detector (6) are arranged in each smoke exhaust subarea (8); the electric smoke exhaust valve (1) is connected with the smoke exhaust fan (2); a control system is arranged in the offshore converter station, the control system is respectively connected with a fire alarm system (11) and a video monitoring system (12) through network cables, the control system is in signal connection with a remote monitoring background (14), and the control system is connected with the smoke detector (6); the smoke exhaust fan (2) is provided with a 280 ℃ smoke exhaust fireproof valve (21), and the 280 ℃ smoke exhaust fireproof valve (21) is connected with a control system circuit; an electric air valve (3) is arranged in the corridor (7) in the offshore converter station, and the electric air valve (3) is connected with a control system line.
2. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 1, characterized in that: the control system is connected with a remote monitoring background (14) of a central control room of a land centralized control center through an optical communication device (13) between sea and land.
3. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 1, characterized in that: the control system comprises a central control system (51) and local control units (52), each local control unit (52) is arranged in each smoke exhaust subarea (8), and each local control unit (52) is correspondingly connected with an electric smoke exhaust valve (1), a smoke exhaust fan (2) and a smoke detector (6) in each smoke exhaust subarea (8) through circuits; the electric air valve (3) is connected with each local control unit (52) in the corresponding smoke exhaust subarea (8) through a circuit.
4. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 1, characterized in that: and each corner of the corridor (7) in the offshore converter station is provided with a smoke exhaust vertical pipe (10), and the top outlet of the smoke exhaust vertical pipe (10) is connected with a smoke exhaust fan (2).
5. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 4, wherein: the electric smoke exhaust valves (1) of two adjacent smoke exhaust subareas (8) are converged and connected into a smoke exhaust vertical pipe (10) through a single smoke exhaust pipeline (9).
6. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 3, wherein: the smoke exhaust fan (2) is arranged on an outdoor deck, and the 280-DEG C smoke exhaust fire valve (21) is connected with each local control unit (52) in the corresponding smoke exhaust subarea (8) through a line.
7. An intelligent smoke evacuation system suitable for an offshore converter station according to claim 3, wherein: the central control system (51) comprises a monitoring workstation (511) and a network switch (512), wherein the monitoring workstation (511) is connected with the fire alarm system (11), the video monitoring system (12), the remote monitoring background (14) and the local control units (52) through the network switch (512).
8. A control method suitable for an intelligent smoke exhaust system of an offshore converter station is characterized in that the intelligent smoke exhaust system of the offshore converter station is adopted, wherein the control system has two control modes of manual operation and automatic operation, and comprises the following steps:
(1) The control system is in an automatic state:
initializing the equipment state, closing the electric smoke exhaust valve (1), stopping the smoke exhaust fan (2), normally opening the 280 ℃ smoke exhaust fire damper (21), closing the electric air valve (3), and acquiring state signals of the electric smoke exhaust valve (1), the smoke exhaust fan (2), the 280 ℃ smoke exhaust fire damper (21) and the electric air valve (3) in the current corresponding smoke exhaust subarea (8) by each local control unit (52) and sending the state signals to the central control system (51);
the central control system (51) receives an alarm signal of the fire alarm system (11); the central control system (51) receives the smoke concentration signals of the intelligent smoke detector (6) through the local control units (52);
when the central control system (51) obtains a smoke concentration overhigh signal of a single smoke exhaust subarea (8) or an alarm signal of the fire alarm system (11), the central control system (51) displays the states of the electric smoke exhaust valve (1), the smoke exhaust fan (2) and the electric air valve (3) in the corresponding smoke exhaust subarea (8), the video pictures of the corresponding smoke exhaust subarea (8) are switched through the video monitoring system (12), and a smoke exhaust starting signal is sent out to remind operation and maintenance personnel to pay attention;
the central control system (51) sends an instruction to the local control unit (52) of the corresponding smoke exhaust subarea (8), and the local control unit (52) starts the smoke exhaust fan (2), the electric smoke exhaust valve (1) and the electric air valve (3) corresponding to the smoke exhaust subarea (8) in a linkage manner;
the central control system (51) receives a remote stop signal of the remote monitoring background (13) and stops the smoke exhaust system; or when the temperature of the smoke exhaust subarea (8) exceeds 280 ℃ due to a serious fire condition, the 280 ℃ smoke exhaust fireproof valve (21) is automatically turned off, the smoke exhaust fan (2) is linked to stop, each local control unit (52) controls the electric air valve (3) to be turned off, and the smoke exhaust system stops;
(2) The control system is in a manual state:
initializing the equipment state, closing the electric smoke exhaust valve (1), stopping the smoke exhaust fan (2), normally opening the 280 ℃ smoke exhaust fire damper (21), closing the electric air valve (3), and acquiring state signals of the electric smoke exhaust valve (1), the smoke exhaust fan (2), the 280 ℃ smoke exhaust fire damper (21) and the electric air valve (3) in the current corresponding smoke exhaust subarea (8) by each local control unit (52) and sending the state signals to the central control system (51);
the central control system (51) receives a remote starting signal of the remote monitoring background (14) and starts the smoke exhaust system;
the central control system (51) receives a remote stop signal of the remote monitoring background (13) and stops the smoke exhaust system; or alternatively
When the temperature of the smoke exhaust subarea (8) exceeds 280 ℃ due to serious fire conditions, the smoke exhaust fireproof valve (21) at 280 ℃ is naturally closed, the smoke exhaust fan (2) is linked to stop, and each local control unit (52) controls the electric air valve (3) to close and the smoke exhaust system to stop.
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CN202211443893.8A CN115738134A (en) | 2022-11-18 | 2022-11-18 | Intelligent smoke exhaust system suitable for offshore converter station and control method |
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