CN113552287A - Sulfur hexafluoride detection device and method - Google Patents
Sulfur hexafluoride detection device and method Download PDFInfo
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- CN113552287A CN113552287A CN202110662543.XA CN202110662543A CN113552287A CN 113552287 A CN113552287 A CN 113552287A CN 202110662543 A CN202110662543 A CN 202110662543A CN 113552287 A CN113552287 A CN 113552287A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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Abstract
The invention discloses a sulfur hexafluoride detection device and a method, wherein the sulfur hexafluoride detection device comprises a movable frame and a control electric box arranged on the movable frame, a detection box is arranged at the top of the control electric box, a controller is arranged on one side of the detection box, and an induced draft assembly is arranged at the top of the detection box; an induced air channel is arranged inside the detection box, an air draft assembly is arranged in the induced air channel, and a detection assembly is arranged at the bottom of the induced air channel and used for detecting sulfur hexafluoride in the air; when the dust collection device is used, the air draft assembly introduces air, the air draft cover stirs and mixes the air in the rotation process, the externally stirred air enters from the air draft opening, the detection assembly can detect sulfur hexafluoride in the air and detect whether sulfur hexafluoride leaks from electrical equipment, the dust cover can filter dust in the air, and the cleaning brush in the interior of the air draft cover can clean the dust accumulated on the outer wall of the dust cover into the annular dust collection box in the rotation process, so that the long-term use and the effective detection of the detection device are facilitated.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a sulfur hexafluoride detection device and method.
Background
Sulfur hexafluoride is a stable, colorless, odorless, non-toxic, non-combustible gas that is compatible with electrical structural materials and is similar to nitrogen. The sulfur hexafluoride gas has good electrical insulation performance and arc extinction performance, is mainly used for arc extinction in high-voltage switches, and is used as an insulation material in high-capacity transformers and high-voltage cables.
The existing sulfur hexafluoride insulation electrical equipment movement detection device with the publication number of CN 103616474B is self-provided with a power supply and convenient to move, the power supply can be omitted when the sulfur hexafluoride insulation electrical equipment movement detection device is used for field test in a substation, a sulfur hexafluoride detector is pushed by a cart, test instruments can be conveniently and quickly transferred among different sulfur hexafluoride insulation electrical equipment, and the test efficiency is improved.
However, when the device is used for detecting, sulfur hexafluoride in the air is detected by means of natural flow of the air, the detection efficiency is low, the sulfur hexafluoride detection device is inconvenient to detect and react in time, and the sulfur hexafluoride detection device is inconvenient to use. In view of the above problems, a sulfur hexafluoride detection device and method are provided.
Disclosure of Invention
The invention aims to provide a sulfur hexafluoride detection device and a method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a sulfur hexafluoride detection device comprises a moving frame and a control electric box arranged on the moving frame, wherein a detection box is arranged at the top of the control electric box, a controller is arranged on one side of the detection box, and an induced draft assembly is arranged at the top of the detection box;
an induced air channel is arranged inside the detection box, an air draft assembly is arranged in the induced air channel, and a detection assembly is arranged at the bottom of the induced air channel and used for detecting sulfur hexafluoride in the air;
a purifying assembly is arranged on one side of the detecting assembly, which is far away from the induced air channel, and is used for purifying and discharging detected air;
the air inducing assembly comprises an air inducing cover arranged at the top of the detection box, a driving assembly used for driving the air inducing cover to rotate is arranged in an inner cavity of the top of the detection box, a dust cover is installed at the top opening of the air inducing channel, a plurality of groups of air inducing ports used for introducing external air into the air inducing channel through the dust cover are formed in the side wall of the air inducing cover, a plurality of groups of cleaning brushes used for cleaning dust on the outer wall of the dust cover are arranged on the inner wall of the air inducing cover, and an annular dust collecting box is arranged at the bottom between the inner wall of the air inducing cover and the outer wall of the dust cover.
Preferably, drive assembly is including connecting the link ring in the induced air cover bottom, the detection case top is equipped with and is used for linking ring pivoted ring channel, link ring keeps away from one side of induced air cover and connects the ring gear, the inside gear that meshes with ring gear outer wall that is equipped with of detection case, gear power input passes through the motor shaft and connects the motor, the motor passes through the motor frame to be fixed inside the detection case, one side axle head that the motor shaft was kept away from to the gear is connected with and is used for stabilizing gear pivoted stabilizer bar, the inside supporting ring board that is used for ring gear stable rotation that is equipped with of detection case.
Preferably, the bottom of the dust cover is fixedly connected with a threaded ring, the inner wall of an opening at the top of the induced air channel is provided with an internal thread in threaded fit with the outer wall of the threaded ring, the top of the dust cover is connected with a cross plate, and the inner wall of the annular dust collection box is in sliding fit with the outer wall of the dust cover.
Preferably, the top of the induced draft cover is detachably connected with a fixed ring plate, the fixed ring plate is used for sealing an opening in the top of the induced draft cover after the dust cover and the annular dust collecting box are installed, and the inside of the fixed ring plate is in sliding fit with the outer wall of the dust cover.
Preferably, the convulsions subassembly, including the fan, fan air inlet end corresponds with induced air passageway open-top, induced air passageway open-top's one side connection fan frame is kept away from to the fan, fan frame installs at induced air passageway inner wall.
Preferably, the detection assembly comprises a detection element, a mounting rack for fixing the detection element is arranged in the detection box, a plurality of detection probes are arranged on one side, close to the induced air channel, of the detection element and used for detecting the concentration of sulfur hexafluoride, exhaust channels are arranged on two sides of the detection element and located on the inner wall of the mounting rack, and an air outlet cavity communicated with the exhaust channels is arranged at the bottom of the detection element.
Preferably, purify the subassembly including setting up the gas purification ware in the detection case, the gas purification ware top is equipped with the baffle of installing at the detection case inner wall, be equipped with the through-hole with air-out chamber intercommunication on the baffle, the through-hole passes through the air-supply line and connects gas purification ware air inlet end, gas purification ware air-out end is connected with out the tuber pipe.
Preferably, one side wall of the detection box is provided with a box door, the other side wall of the detection box is provided with an air outlet screen plate, and the air outlet screen plate corresponds to the air outlet pipe.
Preferably, the movable frame comprises a base and a push plate connected to the base, the bottom of the control electric box is connected to the top of the base, one side, far away from the control electric box, of the base is connected with two sets of supporting legs, and the two sides, close to one end of the push plate, of the base are connected with the movable wheel.
Compared with the prior art, the invention has the beneficial effects that:
the dust cover is convenient to move, detection of sulfur hexafluoride is convenient to carry out in a space provided with electrical equipment, the use is convenient, air is introduced into the air draft assembly during detection, the air draft cover stirs and mixes air in the rotating process, external stirred air enters from the air draft opening, the detection assembly can detect sulfur hexafluoride in the air and detect whether sulfur hexafluoride leaks from the electrical equipment, the dust cover can filter dust in the air, the cleaning brush in the inner portion can clean the dust accumulated on the outer wall of the dust cover into the annular dust collecting box in the rotating process of the air draft cover, and long-term use and effective detection of the detection device are facilitated.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the inside structure of the detection box of the present invention.
FIG. 3 is a schematic view of a partially disassembled structure according to the present invention.
Fig. 4 is a schematic structural view of the induced draft cover according to the present invention.
Fig. 5 is a schematic top view of the induced draft cover according to the present invention.
In the figure: 11-base, 12-supporting legs, 13-moving wheels, 14-push plates, 15-detection box, 16-box door, 17-air outlet screen plate, 18-controller, 19-induced draft hood, 20-induced draft channel, 21-connecting ring, 22-toothed ring, 23-gear, 24-motor, 25-fan, 26-fan frame, 27-detection element, 28-air exhaust channel, 29-air inlet pipe, 30-gas purifier, 31-air outlet pipe, 32-induced draft opening, 33-fixed ring plate, 34-dust cover, 35-cross plate, 36-annular dust collection box, 15-air outlet screen plate, 24-motor, 25-air outlet screen plate, 30-air inlet screen, 31-air outlet pipe, 32-air inlet, 33-fixed ring plate, 34-dust cover, 35-cross plate, 36-annular dust collection box, etc, 37-cleaning brush, 38-control electric box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in the embodiment of the present invention, a sulfur hexafluoride detection device includes a moving frame and a control electronic box 38 installed on the moving frame, a detection box 15 is installed on the top of the control electronic box 38, a controller 18 is installed on one side of the detection box 15, and an induced draft assembly is installed on the top of the detection box 15;
an induced draft channel 20 is arranged inside the detection box 15, an induced draft assembly is arranged in the induced draft channel 20, and a detection assembly is arranged at the bottom of the induced draft channel 20 and used for detecting sulfur hexafluoride in the air;
a purifying component is arranged on one side of the detecting component, which is far away from the induced air channel 20, and is used for purifying and discharging detected air;
the air inducing assembly comprises an air inducing cover 19 arranged at the top of the detection box 15, a driving assembly used for driving the air inducing cover 19 to rotate is arranged in an inner cavity of the top of the detection box 15, a dust cover 34 is installed at an opening of the top of the air inducing channel 20, a plurality of groups of air inducing openings 32 used for introducing external air into the air inducing channel 20 through the dust cover 34 are formed in the side wall of the air inducing cover 19, a plurality of groups of cleaning brushes 37 used for cleaning dust on the outer wall of the dust cover 34 are arranged on the inner wall of the air inducing cover 19, and an annular dust collecting box 36 is arranged at the bottom between the inner wall of the air inducing cover 19 and the outer wall of the dust cover 34.
The driving assembly comprises a connecting ring 21 connected to the bottom of the induced draft hood 19, an annular groove used for the connecting ring 21 to rotate is formed in the top of the detection box 15, a toothed ring 22 is connected to one side, away from the induced draft hood 19, of the connecting ring 21, a gear 23 meshed with the outer wall of the toothed ring 22 is arranged inside the detection box 15, the power input end of the gear 23 is connected with a motor 24 through a motor shaft, the motor 24 is fixed inside the detection box 15 through a motor frame, a stabilizer bar used for stabilizing the rotation of the gear 23 is connected to the shaft end of one side, away from the motor shaft, of the gear 23, and a supporting ring plate used for the stable rotation of the toothed ring 22 is arranged inside the detection box 15; when the motor 24 works, the gear 23 is driven to rotate, the gear ring 22 is driven to rotate, the air draft cover 19 is driven to rotate, air is stirred and mixed in the rotating process of the air draft cover 19, external stirred air enters from the air draft opening 32, and effective detection of sulfur hexafluoride in the air is facilitated after the air is mixed.
The bottom of the dust cover 34 is fixedly connected with a threaded ring, the inner wall of an opening at the top of the induced air channel 20 is provided with an internal thread in threaded fit with the outer wall of the threaded ring, the top of the dust cover 34 is connected with a cross plate 35, and the inner wall of the annular dust collection box 36 is in sliding fit with the outer wall of the dust cover 34; personnel are convenient to hold the cross plate 35 to install the dust cover 34, so that the dust cover 34 covers the top opening of the air inducing channel 20, or when an independent detection point on the electrical equipment needs to be detected, the top opening of the air inducing channel 20 can be connected with a pipeline, the other end of the pipeline is communicated with the detection point to perform sulfur hexafluoride detection work, after the dust cover 34 is installed, the annular dust collection box 36 can be sleeved outside the dust cover 34, the air inducing cover 19 rotates, the sweeping brush 37 can sweep dust accumulated on the outer wall of the dust cover 34 into the annular dust collection box 36, dust accumulation on the dust cover 34 is reduced, and long-term use and effective detection of the detection device are facilitated.
The top of the induced draft cover 19 is detachably connected with a fixed ring plate 33, the fixed ring plate is used for sealing the top opening of the induced draft cover 19 after the dust cover 34 and the annular dust collecting box 36 are installed, and the inside of the fixed ring plate 33 is in sliding fit with the outer wall of the dust cover 34.
The air draft assembly comprises a fan 25, the air inlet end of the fan 25 corresponds to the top opening of the induced air channel 20, one side, far away from the top opening of the induced air channel 20, of the fan 25 is connected with a fan frame 26, and the fan frame 26 is installed on the inner wall of the induced air channel 20; the fan 25 works, and introduces the outside air into the dust cover 34 through the air inducing port 32 and then into the air inducing channel 20, so that the speed of the air entering the detection device is increased, and the detection efficiency is improved.
The detection assembly comprises a detection element 27, a mounting rack for fixing the detection element 27 is arranged in the detection box 15, a plurality of detection probes are arranged on one side, close to the induced air channel 20, of the detection element 27 and used for detecting the concentration of sulfur hexafluoride, exhaust channels 28 are arranged on two sides of the detection element 27 and located on the inner wall of the mounting rack, and an air outlet cavity communicated with the exhaust channels 28 is arranged at the bottom of the detection element 27; after the air is introduced into the induced air channel 20, the detection element 27 detects the concentration of the sulfur hexafluoride through the detection probe, and transmits data to the controller 18 for display, so that a person can conveniently observe whether the sulfur hexafluoride in the electrical equipment leaks into the air.
The purification assembly comprises a gas purifier 30 arranged in the detection box 15, a partition plate arranged on the inner wall of the detection box 15 is arranged at the top of the gas purifier 30, a through hole communicated with the air outlet cavity is formed in the partition plate, the through hole is connected with the air inlet end of the gas purifier 30 through an air inlet pipe 29, and the air outlet end of the gas purifier 30 is connected with an air outlet pipe 31; one side wall of the detection box 15 is provided with a box door 16, the other side wall of the detection box 15 is provided with an air outlet screen plate 17, and the air outlet screen plate 17 corresponds to the air outlet pipe 31; after being discharged into the air outlet cavity from the air exhaust channel 28, the air passing through the detection element 27 enters the air purifier 30 through the through hole and the phoenix pipe 29, and the air purifier 30 can filter the detected air and then discharge the air from the air outlet pipe 31.
The movable frame comprises a base 11 and a push plate 14 connected to the base 11, the bottom of the control electric box 38 is connected to the top of the base 11, one side of the base 11, far away from the control electric box 38, is connected with two groups of supporting legs 12, and two sides of one end, close to the push plate 14, of the base 11 are connected with movable wheels 13; the person can tilt the device by pushing the plate 14, so that the legs 12 are far away from the ground, and the moving wheel 13 still contacts the ground, which is convenient for moving the device by pulling the pushing handle 14.
The working principle of the invention is as follows: when the sulfur hexafluoride detecting device is used, after the device is pushed to a target position or when the device is pushed, the control device works, the fan 25 and the motor 24 are started, the fan 25 works to introduce external air into the dust cover 34 through the air inlet 32 and then into the air inlet channel 20, meanwhile, the motor 24 works to drive the gear 23 to rotate, so that the toothed ring 22 rotates, the air inlet cover 19 is driven to rotate, the air is stirred and mixed in the rotating process of the air inlet cover 19, the externally stirred air enters from the air inlet 32, the dust cover 34 can filter dust in the air, the cleaning brush 37 in the inner part can clean dust accumulated on the outer wall of the dust cover 34 into the annular dust collecting box 36 in the rotating process of the air inlet cover 19, after the air enters the air inlet channel 20, the detecting component detects sulfur hexafluoride in the air, and displays the content ratio of the sulfur hexafluoride in the air on the controller 18, the air after the detection is discharged from the air outlet net plate 17 after being purified by the purification component.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Claims (10)
1. The utility model provides a sulfur hexafluoride detection device, includes the removal frame and installs control electronic box (38) on the removal frame, detection case (15) are installed at control electronic box (38) top, detection case (15) one side is equipped with controller (18), detection case (15) top is equipped with induced air subassembly, its characterized in that:
an induced air channel (20) is arranged inside the detection box (15), an air draft assembly is arranged in the induced air channel (20), and a detection assembly is arranged at the bottom of the induced air channel (20) and used for detecting sulfur hexafluoride in the air;
a purifying component is arranged on one side of the detecting component, which is far away from the induced air channel (20), and is used for purifying and discharging detected air;
the induced air subassembly is including setting up induced air cover (19) at detection case (15) top, detection case (15) top inner chamber is equipped with and is used for driving induced air cover (19) pivoted drive assembly, dust cover (34) are installed to induced air passageway (20) open-top, induced air cover (19) lateral wall has been seted up a plurality of groups and has been used for introducing induced air (32) in induced air passageway (20) through dust cover (34) with outside wind, induced air cover (19) inner wall is equipped with a plurality of groups and is used for sweeping brush (37) to dust cover (34) outer wall dust clearance, the bottom is equipped with annular dust collection box (36) between induced air cover (19) inner wall and dust cover (34) outer wall.
2. The sulfur hexafluoride detection device of claim 1, wherein: drive assembly is including connecting link ring (21) in induced draft cover (19) bottom, detection case (15) top is equipped with and is used for linking up link ring (21) pivoted ring channel, link up link ring (21) and keep away from one side of induced draft cover (19) and connect ring gear (22), detection case (15) inside be equipped with ring gear (22) outer wall meshed gear (23), motor (24) are connected through the motor shaft to gear (23) power input end, motor (24) are fixed inside detection case (15) through the motor frame, one side axle head that motor shaft was kept away from in gear (23) is connected with and is used for stabilizing gear (23) pivoted stabilizer bar, inside being equipped with of detection case (15) is used for ring gear (22) to stabilize pivoted supporting ring board.
3. The sulfur hexafluoride detection device of claim 1, wherein: the bottom of the dust cover (34) is fixedly connected with a threaded ring, an inner thread in threaded fit with the outer wall of the threaded ring is arranged on the inner wall of an opening in the top of the air inducing channel (20), the top of the dust cover (34) is connected with a cross plate (35), and the inner wall of the annular dust collection box (36) is in sliding fit with the outer wall of the dust cover (34).
4. The sulfur hexafluoride detection device of claim 1, wherein: the top of the induced draft cover (19) is detachably connected with a fixed ring plate (33) for sealing the top opening of the induced draft cover (19) after the dust cover (34) and the annular dust collecting box (36) are installed, and the inside of the fixed ring plate (33) is in sliding fit with the outer wall of the dust cover (34).
5. The sulfur hexafluoride detection device of claim 1, wherein: convulsions subassembly, including fan (25), fan (25) air inlet end corresponds with induced air passageway (20) open-top, induced air passageway (20) open-top's one side connection fan frame (26) is kept away from in fan (25), fan frame (26) are installed at induced air passageway (20) inner wall.
6. The sulfur hexafluoride detection device of claim 1, wherein: the detection assembly comprises a detection element (27), a mounting rack for fixing the detection element (27) is arranged in the detection box (15), one side, close to the air inducing channel (20), of the detection element (27) is provided with a plurality of detection probes for detecting the concentration of sulfur hexafluoride, the two sides of the detection element (27) are provided with air exhausting channels (28) on the inner wall of the mounting rack, and the bottom of the detection element (27) is provided with an air outlet cavity communicated with the air exhausting channels (28).
7. The sulfur hexafluoride detection device of claim 6, wherein: purify the subassembly including setting up gas purifier (30) in detection case (15), gas purifier (30) top is equipped with the baffle of installing at detection case (15) inner wall, be equipped with the through-hole with air-out chamber intercommunication on the baffle, the through-hole passes through air-supply line (29) and connects gas purifier (30) air inlet end, gas purifier (30) air-out end is connected with out tuber pipe (31).
8. A sulphur hexafluoride detection device according to claim 7, characterised in that: one side wall of the detection box (15) is provided with a box door (16), the other side wall of the detection box (15) is provided with an air outlet screen plate (17), and the air outlet screen plate (17) corresponds to the air outlet pipe (31).
9. The sulfur hexafluoride detection device of claim 1, wherein: the movable rack comprises a base (11) and a push plate (14) connected to the base (11), the bottom of the control electric box (38) is connected to the top of the base (11), one side, far away from the control electric box (38), of the base (11) is connected with two sets of supporting legs (12), and the two sides, close to one end of the push plate (14), of the base (11) are connected with movable wheels (13).
10. A method of using a sulphur hexafluoride detection device as claimed in any one of claims 1 to 9, including the steps of:
the method comprises the following steps: after the pushing device is moved to the target position or when the pushing device is moved, the control device works, and the fan (25) and the motor (24) are started;
step two: the fan (25) works to introduce external air into the dust cover (34) through the air inlet (32) and then into the air inlet channel (20), meanwhile, the motor (24) works to drive the gear (23) to rotate, so that the gear ring (22) rotates to drive the air draft cover (19) to rotate, the air draft cover (19) stirs and mixes air in the rotating process, so that the externally stirred air enters from the air inlet (32), the dust cover (34) can filter dust in the air, and the cleaning brush (37) in the rotating process of the air draft cover (19) can clean the dust accumulated on the outer wall of the dust cover (34) into the annular dust collection box (36);
step three: after the air enters the induced air channel (20), the detection assembly detects sulfur hexafluoride in the air, the content ratio of the sulfur hexafluoride in the air is displayed on the controller (18), and the detected air is purified by the purification assembly and then is discharged from the air outlet screen plate (17).
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