CN116642137A - Monitoring equipment for large-scale wind power base safety operation - Google Patents
Monitoring equipment for large-scale wind power base safety operation Download PDFInfo
- Publication number
- CN116642137A CN116642137A CN202310721385.XA CN202310721385A CN116642137A CN 116642137 A CN116642137 A CN 116642137A CN 202310721385 A CN202310721385 A CN 202310721385A CN 116642137 A CN116642137 A CN 116642137A
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- China
- Prior art keywords
- air
- gas
- pipes
- air suction
- mounting box
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 145
- 238000001514 detection method Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 13
- 238000012806 monitoring device Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 210000003437 trachea Anatomy 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 description 52
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 52
- 238000011084 recovery Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of wind power safety operation, in particular to monitoring equipment for safety operation of a large wind power base. Through being provided with first collection subassembly and second collection subassembly, inhale four lower connecting air pipes 505 respectively by four second breathing pipes 509 with the gas in the place, send into monitoring facilities respectively by four lower air pipes 506 and detect, be favorable to timely detecting SF6 gas in the place.
Description
Technical Field
The invention relates to the technical field of wind power safety operation, in particular to monitoring equipment for safety operation of a large-scale wind power base.
Background
The wind power base safety operation place has the main harmful factors of noise and vibration, high-temperature and low-temperature humidity, poor lighting and illumination, electromagnetic radiation, dust and harmful substances, and toxic and corrosive gases or substances of a wind power field are mainly SF6 gas leakage, so that poisoning and choking of workers are caused;
the prior art discloses a part of Chinese patent related to the technical field of compressed air energy storage, publication number CN114062612A, and discloses a movable SF6 gas detection device which comprises a collection assembly, wherein the collection assembly comprises a main suction disc and a secondary suction disc, the main suction disc is arranged on the side surface of a shell, and the secondary suction disc is arranged on the other side surface of the shell; and a trolley assembly including a lower base connected with the housing.
Because SF6 gas is colorless, odorless, nontoxic and odorless, leakage is difficult to be perceived by workers in the air, when the content of SF6 gas in the air rises, the workers are dizziness and coma and even choking and death are caused, so that a large number of SF6 gas detectors are installed in a wind power base place, the leakage of SF6 gas is detected in real time, in order to ensure the safety of the workers when the leakage occurs, certain detection equipment can recover the SF6 gas after detecting the leakage of the SF6 gas, and the content of the SF6 gas in the place is reduced;
however, since the density of SF6 gas is five times that of air, SF6 gas can drop to the bottom of a workplace when leaking, a detector is fixed at a certain position to detect, when SF6 gas is detected, the content of SF6 gas in the place may be high, and there is a safety hazard, and during the recovery process of SF6 gas when leaking, because SF6 gas is heavy, the suction mode in the prior art is difficult to suck and recover SF6 gas deposited in a low-lying area.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides monitoring equipment for safe operation of a large-scale wind power base.
In order to achieve the above purpose, the invention adopts the following technical scheme: the monitoring equipment for the safe operation of the large-scale wind power base comprises a workbench, wherein a first mounting box is fixedly arranged at the front end of the upper surface of the workbench, and a second mounting box communicated with the first mounting box is fixedly connected to the upper end surface of the first mounting box;
the first collecting assembly used for collecting air of the operation place is arranged in the second mounting box, the second collecting assembly used for collecting air close to the ground of the operation place is arranged in the first mounting box, and a driving mechanism used for driving the first collecting assembly and the second collecting assembly to start is arranged at the front end of the interior of the first mounting box;
a monitoring mechanism for detecting the gas collected by the first collecting assembly and the second collecting assembly is arranged in the middle of the upper surface of the second mounting box;
the upper surface of the workbench is provided with an adjusting mechanism for reducing the concentration of SF gas in a room after SF gas leaks at the rear position of the first mounting box, and the SF gas is sulfur hexafluoride gas.
Preferably, the first collecting assembly comprises four first air suction pipes and four upper connecting air pipes, the four first air suction pipes are fixedly arranged on the upper surface of the second mounting box in a circumferential array mode, and the four upper connecting air pipes are fixedly arranged on the inner wall of the top end of the second mounting box in a circumferential array mode;
the four upper connecting air pipes are in one-to-one correspondence with the positions of the four first air suction pipes, and are communicated with the first air suction pipes at the corresponding positions;
the upper ends of the four upper connecting air pipes are all rotationally connected with a first impeller, the lower end surfaces of the four upper connecting air pipes are fixedly communicated with an upper air guide pipe, the outer side surface of the first impeller is fixedly connected with a first toothed ring, and the four upper connecting air pipes are divided into two parts by the first impeller, the first impeller and the four upper connecting air pipes divided into two parts are mutually rotationally connected, and the joint of the first impeller and the upper connecting air pipes is sealed by a sealing ring and a sealing gasket.
Preferably, the second collecting assembly comprises four lower connecting air pipes and four second air pipes, the four second air pipes are embedded and installed in the workbench in a circumferential array mode, and the upper ends of the second air pipes extend out of the workbench and are positioned in the first installing box;
the four lower connecting air pipes are in one-to-one correspondence with the positions of the four second air suction pipes, and are fixedly communicated with the second air suction pipes in the corresponding positions;
the upper ends of the four lower connecting air pipes are fixedly communicated with a lower air duct, the lower ends of the four lower connecting air pipes are rotationally connected with a second impeller, the outer side surface of the second impeller is fixedly connected with a second toothed ring, the four lower connecting air pipes are divided into two parts by the second impeller, the second impeller and the lower connecting air pipes divided into two parts are rotationally connected with each other, and the joint of the second impeller and the lower connecting air pipes can be sealed by a sealing ring and a sealing gasket;
the lower end of the second air suction pipe is fixedly connected with a filtering mechanism for isolating and collecting ground dust when the gas near the ground enters.
Preferably, the driving mechanism comprises an upper driving toothed ring and a first motor, the first motor is fixedly arranged on the upper surface of the workbench, the first motor is positioned at the front end of the inner side of the first mounting box, and the upper driving toothed ring is rotatably connected and arranged on the inner wall of the top end of the second mounting box;
the upper driving toothed ring is parallel to the first toothed ring, and the inner side of the upper driving toothed ring is in meshed connection with the first toothed ring;
the output shaft fixedly connected with connecting gear of first motor upper end, connecting gear's rear end meshing is connected with the lower drive ring gear, and the upper end surface fixedly connected with dead lever of lower drive ring gear, the top and the last drive ring gear fixed connection of dead lever, and lower drive ring gear and second ring gear are parallel, and the interior side surface of lower drive ring gear is connected with the surface meshing of second ring gear.
Preferably, the monitoring mechanism comprises a detection box, a first installation cavity is formed in the upper end of the interior of the detection box, and a second installation cavity is formed in the lower end of the interior of the detection box;
a controller is fixedly arranged in the first installation cavity; four SF gas detectors are arranged in the second installation cavity in a circumferential array mode, the four SF gas detectors correspond to the four first air suction pipes in position, and the four SF gas detectors are electrically connected with the controller;
the lower extreme of four SF gas detection appearance all fixedly connected with detects the trachea, detects the trachea and runs through the inside of the top inner wall of first mounting box stretch into the second mounting box, and detects tracheal lower extreme and be linked together with last air duct and lower air duct respectively.
Preferably, the adjusting mechanism comprises a sealing tank and an air suction pump, the sealing tank is fixedly arranged at the rear end of the upper surface of the workbench, an upper air storage chamber for storing oxygen is formed at the upper end of the interior of the sealing tank, and a lower air storage chamber for collecting SF gas is formed at the lower end of the interior of the sealing tank;
a gas transmission air pump communicated with the upper gas storage chamber is arranged in the middle of the upper surface of the sealing tank, and a gas transmission pipe for transmitting gas is communicated with the upper end of the gas transmission air pump;
the air suction pump is fixedly arranged on the lower surface of the workbench, is positioned at the position right below the sealing tank, is communicated with the lower air storage chamber, and is fixedly communicated with a third air suction pipe for air suction at the middle position of the lower surface of the air suction pump;
the inside of the gas pipe and the inside of the third gas suction pipe are provided with one-way electromagnetic valves;
the lower end of the third air suction pipe is fixedly connected with a gas drainage mechanism for increasing SF gas suction efficiency.
Preferably, the filter mechanism comprises a lower mounting plate, four connecting cavities are formed in the inner circumference array of the lower mounting plate and are divided into a second air suction pipe below the corresponding position, the four connecting cavities are communicated with the second air suction pipe at the corresponding position, and filter plates are fixedly mounted in the four connecting cavities.
Preferably, the gas drainage mechanism comprises a third impeller and a driving motor, the third impeller is rotatably connected and installed on the surface of the shell of the air suction pump, the driving motor is fixedly installed on the lower surface of the workbench, and the driving motor is positioned at the front end position of the air suction pump;
the output shaft of the driving motor rotates with a conical gear, and the outer side of the conical gear is meshed with the upper surface of the third impeller.
Preferably, the lower surface of the workbench is positioned at the outer side of the lower mounting plate and is rotationally connected with an outer rotating ring, the outer side surface of the third impeller is in meshed connection with the outer side surface of the outer rotating ring, the lower surface of the outer rotating ring is fixedly connected with a mounting cross rod, the upper surface of the mounting cross rod is provided with a cleaning brush, and the cleaning brush corresponds to the filter plate in position.
Preferably, the four corners of the lower surface of the workbench are provided with rollers for moving, the rollers are one or a combination of rotating wheels and universal wheels, and clamping plates for braking are arranged on the rotating wheels and/or the universal wheels.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the first collecting assembly and the second collecting assembly are arranged, so that the gas in the place is sucked into the four lower connecting air pipes 505 by the four second air suction pipes 509 respectively, and then is sent into the monitoring mechanism by the four lower air guide pipes 506 respectively for detection, thereby being beneficial to timely detecting SF6 gas in the place.
According to the invention, the adjusting component is arranged, after SF6 gas leaks, the air suction pump is opened to suck SF gas naturally deposited below the place, the content of SF gas in the place is recovered and reduced, the content of oxygen in the place is increased, and the possibility of oxygen deficiency of staff is reduced.
The invention can increase the suction range during recovery by arranging the filter assembly and the gas drainage mechanism, and the specific working mode is as follows, SF gas in a nearby area is close to a third suction pipe in the center during recovery, thereby being beneficial to gas recovery, the detection step is stopped during recovery, dust accumulated on the surface of the filter plate can influence the next use, the filter plate can be cleaned by rotating the cleaning brush, and the filter plate can be cleaned by the cleaning brush on the surface of the inner side of the mounting cross rod, thereby being beneficial to the next detection.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention taken along the line of FIG. 1;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 a in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 2;
FIG. 6 is an enlarged view of a portion of the invention at C in FIG. 2;
FIG. 7 is an enlarged view of a portion of the invention at D in FIG. 2;
FIG. 8 is a partial side view of FIG. 2 of the present invention;
FIG. 9 is an enlarged view of a portion of the invention at E in FIG. 8;
fig. 10 is an enlarged view of a portion of fig. 8 at F in accordance with the present invention.
In the figure: 1. a work table; 2. a first mounting box; 3. a second mounting box; 4. a detection box; 401. a first mounting cavity; 402. a second mounting cavity; 403. a controller; 404. SF6 gas detector; 405. detecting an air pipe; 5. a first air suction pipe; 501. the upper part is connected with an air pipe; 502. an upper airway; 503. a first impeller; 504. a first toothed ring; 505. the lower part is connected with an air pipe; 506. a lower airway; 507. a second impeller; 508. a second toothed ring; 509. a second air suction pipe; 6. a sealed tank; 601. an upper air storage chamber; 602. a lower air storage chamber; 603. an air suction pump; 604. a third suction pipe; 7. a gas delivery pump; 701. a gas pipe; 8. an upper driving toothed ring; 801. a fixed rod; 802. a lower driving toothed ring; 803. a connecting gear; 804. a first motor; 9. a lower mounting plate; 901. a connecting cavity; 902. a filter plate; 10. a third impeller; 1001. a driving motor; 1002. a bevel gear; 11. an outer rotating ring; 1101. mounting a cross bar; 1102. a cleaning brush.
Description of the embodiments
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
A monitoring device for safety operation of a large-scale wind power base as shown in fig. 1 to 10, comprising.
The monitoring equipment for the safe operation of the large-scale wind power base comprises a workbench 1, wherein a first mounting box 2 is fixedly arranged at the front end of the upper surface of the workbench 1, and a second mounting box 3 communicated with the first mounting box 2 is fixedly connected to the upper end surface of the first mounting box 2;
a first collecting component for collecting air of a working place is arranged in the second mounting box 3, a second collecting component for collecting air of the working place close to the ground is arranged in the first mounting box 2, and a driving mechanism for driving the first collecting component and the second collecting component to start is arranged at the front end of the inner part of the first mounting box 2;
a monitoring mechanism for detecting the gas collected by the first collecting component and the second collecting component is arranged in the middle of the upper surface of the second mounting box 3;
an adjusting mechanism for reducing the concentration of SF6 gas in a room after SF6 gas leaks is arranged on the upper surface of the workbench 1 at the rear position of the first mounting box 2, and the SF6 gas is sulfur hexafluoride gas;
during the use process, the first collecting assembly collects the gas close to the upper part in the place, the second collecting assembly collects the air close to the ground in the operation place, the collected gases in the four directions enter the monitoring mechanism respectively to be detected, and after the detection is finished, if SF6 gas leakage occurs, the concentration of the indoor SF6 gas is reduced through the adjusting mechanism, and the SF6 gas is recovered.
As a further embodiment of the present invention, the first collecting assembly comprises four first air suction pipes 5 and four upper connecting air pipes 501, wherein the four first air suction pipes 5 are fixedly installed on the upper surface of the second installation box 3 in a circumferential array manner, and the four upper connecting air pipes 501 are fixedly installed on the inner wall of the top end of the second installation box 3 in a circumferential array manner;
the four upper connecting air pipes 501 are in one-to-one correspondence with the positions of the four first air suction pipes 5, and the four upper connecting air pipes 501 are communicated with the first air suction pipes 5 in the corresponding positions;
the upper ends of the four upper connecting air pipes 501 are respectively and rotatably connected with a first impeller 503, the lower end surfaces of the four upper connecting air pipes 501 are respectively and fixedly communicated with an upper air duct 502, the outer side surface of the first impeller 503 is fixedly connected with a first toothed ring 504, the four upper connecting air pipes 501 are divided into two parts by the first impeller 503, the first impeller 503 and the four upper connecting air pipes 501 divided into two parts are mutually and rotatably connected, and the joint of the first impeller 50 and the upper connecting air pipes 501 is sealed by a sealing ring and a sealing gasket;
in the prior art, because the position of detector is fixed, even at a plurality of places high installation detector, also need the staff timely observe a plurality of detectors, it is very inconvenient, the gas that is close to the top in the place can be collected to first collection subassembly, and specific mode of operation is as follows:
in the process of air suction collection, the first impeller 503 is driven by the driving mechanism to rotate, negative pressure is generated in the four upper connecting air pipes 501, air in a place is sucked into the four upper connecting air pipes 501 by the four first air suction pipes 5 respectively, and then the air is sent into the monitoring mechanism by the four upper air guide pipes 502 respectively for detection.
As a further embodiment of the present invention, the second collecting assembly comprises four lower connecting air pipes 505 and four second air pipes 509, the four second air pipes 509 are embedded and installed inside the workbench 1 in a circumferential array manner, and the upper ends of the second air pipes 509 extend out of the workbench 1 to be positioned inside the first installing box 2;
the four lower connecting air pipes 505 are in one-to-one correspondence with the positions of the four second air suction pipes 509, and the four lower connecting air pipes 505 are fixedly communicated with the second air suction pipes 509 in the corresponding positions;
the upper ends of the four lower connecting air pipes 505 are fixedly communicated with a lower air duct 506, the lower ends of the four lower connecting air pipes 505 are rotationally connected with a second impeller 507, the outer side surface of the second impeller 507 is fixedly connected with a second toothed ring 508, the four lower connecting air pipes 505 are divided into two parts by the second impeller 507, the second impeller 507 and the lower connecting air pipes 505 divided into two parts are rotationally connected with each other, and the joint of the second impeller 507 and the lower connecting air pipes 505 can be sealed by a sealing ring and a sealing gasket;
the lower end of the second air suction pipe 509 is fixedly connected with a filtering mechanism for isolating and collecting ground dust when the gas near the ground enters;
it should be noted that, the second collecting assembly is used for collecting the air close to the ground, and the air can be sucked from a plurality of heights and directions by matching with the first collecting assembly, and the specific working mode is as follows:
in the process of air suction collection, the second impeller 507 is driven by the driving mechanism to rotate, negative pressure is generated in the four lower connecting air pipes 505, air in a place is sucked into the four lower connecting air pipes 505 by the four second air suction pipes 509 respectively, and then the air is sent into the monitoring mechanism by the four lower air guide pipes 506 respectively for detection, so that timely detection of SF6 air in the place is facilitated.
As a further embodiment of the invention, the driving mechanism comprises an upper driving toothed ring 8 and a first motor 804, the first motor 804 is fixedly arranged on the upper surface of the workbench 1, the first motor 804 is positioned at the front end of the inner side of the first mounting box 2, and the upper driving toothed ring 8 is rotatably connected and arranged on the inner wall of the top end of the second mounting box 3;
the upper driving toothed ring 8 is parallel to the first toothed ring 504, and the inner side of the upper driving toothed ring 8 is in meshed connection with the first toothed ring 504;
the output shaft at the upper end of the first motor 804 is fixedly connected with a connecting gear 803, the rear end of the connecting gear 803 is in meshed connection with a lower driving toothed ring 802, the surface of the upper end of the lower driving toothed ring 802 is fixedly connected with a fixing rod 801, the top end of the fixing rod 801 is fixedly connected with an upper driving toothed ring 8, the lower driving toothed ring 802 is parallel to the second toothed ring 508, and the inner side surface of the lower driving toothed ring 802 is in meshed connection with the outer surface of the second toothed ring 508;
the first impeller 503 and the second impeller 507 are driven by the driving mechanism to rotate, and the specific working mode is as follows; in the driving process, the first motor 804 is started to drive the connecting gear 803 to rotate, in the rotating process of the connecting gear 803, the lower driving toothed ring 802 in meshed connection is driven to rotate, and in the rotating process of the lower driving toothed ring 802, the upper driving toothed ring 8 connected through the fixing rod 801 also synchronously rotates;
in the process of rotating the lower driving toothed ring 802, the second toothed ring 508 meshed with the inner side rotates to drive the second impeller 507 to rotate, and in the process of rotating the upper driving toothed ring 8, the first toothed ring 504 meshed with the inner side rotates to drive the first impeller 503 to rotate, and the gas at the upper end and the lower end can be sucked through the rotation synchronization of the first impeller 503 and the second impeller 507 from different directions, so that the suction range is further enlarged, and the accuracy of detection is facilitated to be increased.
As a further embodiment of the present invention, the monitoring mechanism comprises a detection box 4, wherein a first installation cavity 401 is formed at the upper end of the interior of the detection box 4, and a second installation cavity 402 is formed at the lower end of the interior of the detection box 4;
a controller 403 is fixedly installed inside the first installation cavity 401; four SF6 gas detectors 404 are arranged in the second installation cavity 402 in a circumferential array mode, the positions of the four SF6 gas detectors 404 correspond to the positions of the four first air suction pipes 5, and the four SF6 gas detectors 404 are electrically connected with a controller 403;
the lower ends of the four SF6 gas detectors 404 are fixedly connected with detection air pipes 405, the detection air pipes 405 penetrate through the inner wall of the top end of the first mounting box 2 and extend into the second mounting box 3, and the lower ends of the detection air pipes 405 are respectively communicated with an upper air guide pipe 502 and a lower air guide pipe 506;
it should be noted that, the monitoring mechanism may detect the gas entering, and the specific working mode is as follows, the gas collected by the four upper gas guide pipes 502 and the four lower gas guide pipes 506 is sent to the four detection gas pipes 405, and then enters the four SF6 gas detectors 404 by the four detection gas pipes 405, the detection result of the four SF6 gas detectors 404 is transmitted to the controller 403, and the detected gas is discharged through the exhaust hole, and the adjusting mechanism is opened by controlling, so that the gas can be detected from four directions, and the approximate direction of leakage is known according to the detection result, thereby being beneficial to the subsequent processing.
As a further embodiment of the invention, the adjusting mechanism comprises a sealing tank 6 and an air suction pump 603, wherein the sealing tank 6 is fixedly arranged at the rear end of the upper surface of the workbench 1, an upper air storage chamber 601 for storing oxygen is formed at the upper end of the interior of the sealing tank 6, and a lower air storage chamber 602 for collecting SF6 gas is formed at the lower end of the interior of the sealing tank 6;
a gas pump 7 communicated with the upper gas storage chamber 601 is arranged in the middle of the upper surface of the sealing tank 6, and a gas pipe 701 for gas transmission is fixedly communicated with the upper end of the gas pump 7;
the air suction pump 603 is fixedly arranged on the lower surface of the workbench 1, the air suction pump 603 is positioned at the position right below the sealing tank 6, the air suction pump 603 is communicated with the lower air storage chamber 602, and a third air suction pipe 604 for air suction is fixedly communicated with the middle position of the lower surface of the air suction pump 603;
the inside of the gas pipe 701 and the inside of the third gas suction pipe 604 are provided with one-way electromagnetic valves;
the lower end of the third air suction pipe 604 is fixedly connected with a gas drainage mechanism for increasing SF6 gas suction efficiency;
in the working process, after the controller 403 detects that the SF6 gas leaks, a first control signal and a second control signal are generated, the first control signal is sent to the gas delivery pump 7, the gas delivery pump 7 is opened to discharge the oxygen in the upper gas storage chamber 601, and meanwhile, the second control signal is sent to the gas suction pump 603, the gas suction pump 603 is opened to suck the SF6 gas naturally deposited below the room, the content of the SF6 gas in the room is recovered and reduced, the content of the oxygen in the room is increased, and the possibility of oxygen deficiency of workers is reduced.
As a further embodiment of the invention, the filtering mechanism comprises a lower mounting plate 9, four connecting cavities 901 are formed in the inner circumference array of the lower mounting plate 9, the four connecting cavities 901 are divided into lower parts of second air suction pipes 509 at corresponding positions, the four connecting cavities 901 are communicated with the second air suction pipes 509 at corresponding positions, and filter plates 902 are fixedly arranged in the four connecting cavities 901;
the second air suction pipe 509 located below may suck dust close to the ground during suction, damage the SF6 gas detector, and the filtering mechanism may isolate dust on the bottom surface, which is specifically working in the following manner, during the process of sucking gas into the second air suction pipe 509, the dust attached to the ground is blocked by the filter plate 902, so that the gas entering the SF6 gas detector can be reduced.
As a further embodiment of the present invention, the gas drainage mechanism comprises a third impeller 10 and a driving motor 1001, the third impeller 10 is rotatably connected and mounted on the surface of the housing of the suction air pump 603, the driving motor 1001 is fixedly mounted on the lower surface of the workbench 1, and the driving motor 1001 is located at the front end position of the suction air pump 603;
an output shaft of the driving motor 1001 rotates with a conical gear 1002, and the outer side of the conical gear 1002 is in meshed connection with the upper surface of the third impeller 10;
it should be noted that, because SF6 gas leaks and then is relatively uniformly deposited below the place, the gas drainage mechanism can increase the suction range during recovery, and the specific working mode is as follows, in the recovery process, by turning on the driving motor 1001, the bevel gear 1002 is driven to rotate, and then the engaged third impeller 10 is driven to rotate, so that SF6 gas in the nearby area is close to the central third air suction pipe 604, which is beneficial to gas recovery.
As a further embodiment of the invention, the lower surface of the workbench 1 is rotatably connected with the outer rotating ring 11 at the outer side position of the lower mounting disc 9, the outer side surface of the third impeller 10 is in meshed connection with the outer side surface of the outer rotating ring 11, the lower surface of the outer rotating ring 11 is fixedly connected with the mounting cross rod 1101, the upper surface of the mounting cross rod 1101 is provided with the cleaning brush 1102, and the positions of the cleaning brush 1102 and the filter plate 902 correspond to each other;
it should be noted that, in the recovery process, the detection step is stopped, at this time, dust accumulated on the surface of the filter plate 902 may affect the next use, the cleaning brush 1102 may rotate to clean the filter plate 902, and the specific working manner is as follows, when the third impeller 10 rotates, the outer rotating ring 11 engaged with the outer rotating ring rotates synchronously, and the cleaning brush 1102 on the surface of the inner mounting cross bar 1101 may clean the filter plate 902, so as to facilitate the next detection.
The four corners of the lower surface of the workbench 1 are provided with rollers for moving, the rollers are one or the combination of rotating wheels and universal wheels, and clamping plates for braking are arranged on the rotating wheels and/or the universal wheels.
The working principle of the invention is as follows:
the monitoring mechanism can detect the entering gas, and the specific working mode is that the gas collected by the four upper gas guide pipes 502 and the four lower gas guide pipes 506 is sent to the four detection gas pipes 405, then the gas enters the four SF6 gas detectors 404 by the four detection gas pipes 405, the detection results of the four SF6 gas detectors 404 are transmitted to the controller 403, the detected gas is discharged through the exhaust holes, and the gas can be detected from four directions due to the control of the opening and the adjusting mechanism, so that the approximate leakage direction can be obtained according to the detection results, thereby being beneficial to the subsequent treatment
In the working process, after detecting that the SF6 gas leaks by the controller 403, the controller generates a first control signal and a second control signal, sends the first control signal to the gas delivery pump 7, opens the gas delivery pump 7 to discharge the oxygen in the upper gas storage chamber 601, simultaneously sends the second control signal to the gas suction pump 603, opens the gas suction pump 603 to suck the SF6 gas naturally deposited below the gas suction pump, recovers and reduces the SF6 gas content in the gas suction pump, simultaneously increases the oxygen content in the gas suction pump, and reduces the possibility of oxygen deficiency of staff
The second air suction pipe 509 located below may suck dust close to the ground during suction, damage the SF6 gas detector, and the filtering mechanism may isolate dust on the bottom surface, which is specifically working in the following manner, during the process of sucking gas into the second air suction pipe 509, the dust attached to the ground is blocked by the filter plate 902, so that the gas entering the SF6 gas detector can be reduced.
Because SF6 gas can be relatively evenly deposited below the place after leakage, the gas drainage mechanism can increase the inhaled range during recovery, the specific working mode is as follows, in the recovery process, through opening driving motor 1001, drive bevel gear 1002 and rotate, then drive the third impeller 10 of meshing to rotate, SF6 gas in the nearby region is close to the third breathing pipe 604 in the center, be favorable to the recovery of gas, in the recovery process, the detection step has stopped, dust that the filter 902 surface accumulated can influence the use next time this moment, cleaning brush 1102 can rotate and clear up filter 902, the specific working mode is as follows, outside meshed outer rotating ring 11 synchronous rotation when third impeller 10 rotates, the cleaning brush 1102 on the inner side installation horizontal pole 1101 surface can clear up filter 902, be favorable to the detection next time.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (10)
1. Monitoring equipment for large-scale wind power base safety work, including workstation (1), its characterized in that: a first mounting box (2) is fixedly arranged at the front end of the upper surface of the workbench (1), and a second mounting box (3) communicated with the first mounting box (2) is fixedly connected to the upper end surface of the first mounting box (2);
a first collecting assembly for collecting air of a working place is arranged in the second mounting box (3), a second collecting assembly for collecting air close to the ground of the working place is arranged in the first mounting box (2), and a driving mechanism for driving the first collecting assembly and the second collecting assembly to start is arranged at the front end of the interior of the first mounting box (2);
a monitoring mechanism for detecting the gas collected by the first collecting assembly and the second collecting assembly is arranged in the middle of the upper surface of the second mounting box (3);
and an adjusting mechanism for reducing the concentration of SF6 gas in the room after SF6 gas leaks is arranged on the upper surface of the workbench (1) at the rear position of the first mounting box (2).
2. The monitoring device for safe operation of a large wind power base according to claim 1, wherein: the first collecting assembly comprises four first air suction pipes (5) and four upper connecting air pipes (501), the four first air suction pipes (5) are fixedly arranged on the upper surface of the second mounting box (3) in a circumferential array mode, and the four upper connecting air pipes (501) are fixedly arranged on the inner wall of the top end of the second mounting box (3) in a circumferential array mode;
the four upper connecting air pipes (501) are in one-to-one correspondence with the positions of the four first air suction pipes (5), and the four upper connecting air pipes (501) are communicated with the first air suction pipes (5) in the corresponding positions;
the upper ends of the four upper connecting air pipes (501) are respectively and rotatably connected with a first impeller (503), the lower end surfaces of the four upper connecting air pipes (501) are respectively and fixedly communicated with an upper air guide pipe (502), and the outer side surfaces of the first impellers (503) are fixedly connected with a first toothed ring (504).
3. The monitoring device for safe operation of a large wind power base according to claim 2, wherein: the second collecting assembly comprises four lower connecting air pipes (505) and four second air suction pipes (509), the four second air suction pipes (509) are embedded and installed in the workbench (1) in a circumferential array mode, and the upper ends of the second air suction pipes (509) extend out of the workbench (1) and are positioned in the first installing box (2);
the four lower connecting air pipes (505) are in one-to-one correspondence with the positions of the four second air suction pipes (509), and the four lower connecting air pipes (505) are fixedly communicated with the second air suction pipes (509) at the corresponding positions;
the upper ends of the four lower connecting air pipes (505) are fixedly communicated with a lower air guide pipe (506), the lower ends of the four lower connecting air pipes (505) are rotatably connected with a second impeller (507), and the outer side surface of the second impeller (507) is fixedly connected with a second toothed ring (508);
the lower end of the second air suction pipe (509) is fixedly connected with a filtering mechanism for isolating and collecting ground dust when the gas near the ground enters.
4. A monitoring device for safe operation of a large wind power base according to claim 3, wherein: the driving mechanism comprises an upper driving toothed ring (8) and a first motor (804), the first motor (804) is fixedly arranged on the upper surface of the workbench (1), the first motor (804) is positioned at the front end of the inner side of the first mounting box (2), and the upper driving toothed ring (8) is rotatably connected and arranged on the inner wall of the top end of the second mounting box (3);
the upper driving toothed ring (8) is parallel to the first toothed ring (504), and the inner side of the upper driving toothed ring (8) is in meshed connection with the first toothed ring (504);
the output shaft fixedly connected with connecting gear (803) of first motor (804) upper end, the rear end meshing of connecting gear (803) is connected with lower drive ring gear (802), the upper end surface fixedly connected with dead lever (801) of lower drive ring gear (802), the top of dead lever (801) with go up drive ring gear (8) fixed connection, just lower drive ring gear (802) with second ring gear (508) are parallel, the interior side surface of lower drive ring gear (802) with the surface meshing of second ring gear (508) is connected.
5. The monitoring device for safe operation of a large wind power base according to claim 4, wherein: the monitoring mechanism comprises a detection box (4), a first installation cavity (401) is formed in the upper end of the inside of the detection box (4), and a second installation cavity (402) is formed in the lower end of the inside of the detection box (4);
a controller (403) is fixedly arranged in the first installation cavity (401); four SF6 gas detectors (404) are arranged in the second installation cavity (402) in a circumferential array mode, the four SF6 gas detectors (404) correspond to the four first air suction pipes (5), and the four SF6 gas detectors (404) are electrically connected with the controller (403);
four the equal fixedly connected with of lower extreme of SF6 gas detection appearance (404) detects trachea (405), detect trachea (405) run through the top inner wall of first mounting box (2) stretches into the inside of second mounting box (3), just detect the lower extreme of trachea (405) respectively with last air duct (502) with lower air duct (506) are linked together.
6. The monitoring device for safe operation of a large wind power base according to claim 5, wherein: the adjusting mechanism comprises a sealing tank (6) and an air suction pump (603), the sealing tank (6) is fixedly arranged at the rear end of the upper surface of the workbench (1), an upper air storage chamber (601) for storing oxygen is formed in the upper end of the interior of the sealing tank (6), and a lower air storage chamber (602) for collecting SF6 gas is formed in the lower end of the interior of the sealing tank (6);
an air delivery pump (7) communicated with the upper air storage chamber (601) is arranged in the middle of the upper surface of the sealing tank (6), and an air delivery pipe (701) for delivering air is fixedly communicated with the upper end of the air delivery pump (7);
the air suction pump (603) is fixedly arranged on the lower surface of the workbench (1), the air suction pump (603) is positioned at the position right below the sealing tank (6), the air suction pump (603) is communicated with the lower air storage chamber (602), and a third air suction pipe (604) for air suction is fixedly communicated at the middle position of the lower surface of the air suction pump (603);
the inside of the air delivery pipe (701) and the inside of the third air suction pipe (604) are provided with one-way electromagnetic valves;
the lower end of the third air suction pipe (604) is fixedly connected with a gas drainage mechanism for increasing SF6 gas suction efficiency.
7. The monitoring device for safe operation of a large wind power base according to claim 6, wherein: the filter mechanism comprises a lower mounting plate (9), four connecting cavities (901) are formed in an inner circumference array of the lower mounting plate (9), the four connecting cavities (901) are divided into lower parts of second air suction pipes (509) located at corresponding positions, the four connecting cavities (901) are communicated with the second air suction pipes (509) located at corresponding positions, and filter plates (902) are fixedly mounted in the four connecting cavities (901).
8. The monitoring device for safe operation of a large wind power base according to claim 7, wherein: the gas drainage mechanism comprises a third impeller (10) and a driving motor (1001), the third impeller (10) is rotatably connected and installed on the surface of the shell of the air suction pump (603), the driving motor (1001) is fixedly installed on the lower surface of the workbench (1), and the driving motor (1001) is located at the front end position of the air suction pump (603);
an output shaft of the driving motor (1001) rotates with a conical gear (1002), and the outer side of the conical gear (1002) is in meshed connection with the upper surface of the third impeller (10).
9. The monitoring device for safe operation of a large wind power base according to claim 8, wherein: the lower surface of workstation (1) is located the outside position department rotation of lower mounting disc (9) is connected with outer rotating ring (11), the outside surface of third impeller (10) with the outside surface meshing of outer rotating ring (11) is connected, just the lower surface fixedly connected with installation horizontal pole (1101) of outer rotating ring (11), the upper surface mounting of installation horizontal pole (1101) has cleaning brush (1102), cleaning brush (1102) with the position of filter (902) is corresponding.
10. The monitoring device for safe operation of a large wind power base according to claim 9, wherein: and rollers for moving are arranged at four corners of the lower surface of the workbench (1).
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