CN203241348U - Gas detection device - Google Patents

Gas detection device Download PDF

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Publication number
CN203241348U
CN203241348U CN 201320122915 CN201320122915U CN203241348U CN 203241348 U CN203241348 U CN 203241348U CN 201320122915 CN201320122915 CN 201320122915 CN 201320122915 U CN201320122915 U CN 201320122915U CN 203241348 U CN203241348 U CN 203241348U
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CN
China
Prior art keywords
gas
links
sole
voltage
detecting device
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Expired - Fee Related
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CN 201320122915
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Chinese (zh)
Inventor
尹博
韩颖慧
杨玲玲
张永震
张宁
王佳音
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North China Electric Power University
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North China Electric Power University
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Priority to CN 201320122915 priority Critical patent/CN203241348U/en
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Publication of CN203241348U publication Critical patent/CN203241348U/en
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Abstract

The utility model provides a gas detection device, which is used for detecting an SF6 (sulfur hexafluoride) gas, and is of a shoe shape. The gas detection device comprises a shoe body and a sole which is detachably connected with the shoe body, wherein a light-emitting device is arranged on the shoe body; a detection device is arranged inside the sole; the light-emitting device is connected with the detection device. The gas detection device provided by the utility model is a gas detection shoe in fact; the detection device can detect the SF6 gas and display a detection result through the light-emitting device. The gas detection shoe provided by the utility model can be put on a foot, is convenient, and can detect the SF6 gas at any time; meanwhile, the density of the SF6 gas is large, so that the SF6 gas is easily gathered in a place with a low space position; a worker can sensitively detect the SF6 gas when the gas detection shoe provided by the utility model is put on the foot. Thus, the gas detection device has good practicability.

Description

A kind of gas-detecting device
Technical field
The present invention relates to sensor application field and technical field of electrochemistry, relate in particular to a kind of gas-detecting device.
Background technology
Pure SF 6Gas is colourless, tasteless, nontoxic, and stable chemical performance under the normal temperature has good insulation and arc quenching characteristic, is widely used in the SF such as power industry high-voltage switch gear, GIS fully closed combined electric unit 6In the gas insulated electric apparatus.But, if SF occurs in electrical equipment 6Leakage Gas does not in time solve again, and serious consequence: SF will occur 6The gas relative density is larger, is about 5 times of air under the normal temperature and pressure, and is indoor what relatively seal, gathers in lower space or low place easily, causes anoxia asphyxia; SF 6Gas also has greenhouse effect, and its greenhouse effect are equivalent CO 224900 times, and it can stable existence in atmosphere 3200, even a small amount of SF 6Gas also can cause serious greenhouse effect; In addition, SF 6Leakage Gas also can reduce the insulating property of electrical equipment.Based on this, SF is equipped with in country's " electrical safe working order " special provision 6The electrical room of equipment must guarantee SF 6Therefore gas concentration, improves SF less than 1000ppm 6The on-the-spot leak hunting technology of gas has very important significance to reducing the major accidents such as electrical equipment environmental pollution.
Application number is that 200620078021.6 Chinese patent literature discloses a kind of sulfur hexafluoride gas detector, it comprises emitter and receiving trap, emitter is comprised of adjustable frequency stabilization carbon dioxide laser transmitter and the semiconductor diode transmitter that is located at its top, receiving trap is by the receiver that receives adjustable frequency stabilization carbon dioxide laser launcher signal, receiving semiconductor diode laser launcher signal receiver and support forms, receive semiconductor diode laser launcher signal receiver and be located on the receiver that receives adjustable frequency stabilization carbon dioxide laser launcher signal, the receiver that receives adjustable frequency stabilization carbon dioxide laser launcher signal is located on the support.Although this device long service life, stable performance, it is not portable, for being equipped with SF 6Whether the staff of the workplace work of gas insulation electric appliance equipment has SF near being difficult for detecting at any time own workplace 6Gas is in case there is SF 6Gas Leakage Gas and the staff does not discover will produce serious consequence.Therefore, how to make staff in the power plant in time detect own workplace whether SF is arranged 6Leakage Gas to take corresponding measure, is the technical matters that those skilled in the art technician needs to be resolved hurrily.
Summary of the invention
In view of this, technical matters to be solved by this invention is to provide a kind of gas-detecting device, and it is easy to carry, can Real-Time Monitoring SF 6Leakage Gas.
The invention provides a kind of gas-detecting device, for detection of SF 6Gas, it is shoe-shaped, comprises footwear body and the sole that removably connects with described footwear body, is provided with light-emitting device on the described footwear body, is placed with pick-up unit in the described sole, described light-emitting device links to each other with described pick-up unit.
Preferably, described light-emitting device is arranged on the vamp of described footwear body.
Preferably, described light-emitting device is a plurality of LED light emitting diodes.
Preferably, described a plurality of LED light emitting diode is evenly distributed on the vamp of described footwear body.
Preferably, be provided with cavity on the described sole, described pick-up unit is positioned in the described cavity.
Preferably, described pick-up unit comprises testing circuit and the power supply that links to each other with described testing circuit, and described power supply is positioned in the cavity at heel place of sole, and described testing circuit is positioned in the cavity at sole place of sole.
Preferably, described testing circuit comprises:
The voltage supplying module, described voltage supplying module comprises circuit of three-terminal voltage-stabilizing integrated;
The SF that links to each other with described circuit of three-terminal voltage-stabilizing integrated 6The gas sensing module, described SF 6The gas sensing module comprises the SF that links to each other with the output terminal of described circuit of three-terminal voltage-stabilizing integrated 6Detector and with described SF 6The voltage follower that the output terminal of detector links to each other;
With the signal processing module that the output terminal of described voltage follower links to each other, described signal processing module comprises the second differential amplifier that the first differential amplifier of linking to each other with the output terminal of described voltage follower links to each other with output terminal with described the first differential amplifier;
With the voltage comparator that the output terminal of described the second differential amplifier links to each other, described voltage comparator links to each other with described light-emitting device.
Preferably, also comprise a plurality of sound-producing devices that are arranged on the described sole, each sound-producing device all links to each other with described pick-up unit.
Preferably, described a plurality of sound-producing device evenly is arranged on the side of described sole.
Preferably, described sound-producing device is hummer.
Compared with prior art, provided by the invention for detection of SF 6The gas-detecting device of gas is shoe-shaped, comprises footwear body and the sole that removably connects with described footwear body, is provided with light-emitting device on the described footwear body, is placed with pick-up unit in the described sole, and described light-emitting device links to each other with described pick-up unit.Gas-detecting device provided by the invention is actually gas and detects footwear, and pick-up unit wherein can detect SF 6Gas, and by light-emitting device demonstration testing result.Gas provided by the invention detects footwear and can be through on the pin, and is comparatively convenient and can detect SF at any time 6Gas; Simultaneously, because SF 6Gas density is large, gather in the place that space bit sets low easily, and the staff is through gas detection footwear provided by the invention on the pin, can detect more delicately SF 6Gas, thus better practicality had.In addition, the present invention adopts light-emitting device to show testing result, makes testing result more directly perceived and rapid, makes the staff in time detect SF 6Leakage Gas to take corresponding measure, is avoided dangerous generation.
Description of drawings
The front view of the gas-detecting device that Fig. 1 provides for the embodiment of the invention;
The vertical view of the gas-detecting device that Fig. 2 provides for the embodiment of the invention;
The structural representation of the testing circuit of the gas-detecting device that Fig. 3 provides for the embodiment of the invention.
Embodiment
The invention provides a kind of gas-detecting device, for detection of SF 6Gas, it is shoe-shaped, comprise the footwear body and with the described sole that removably connects, be provided with light-emitting device on the described footwear body, be placed with pick-up unit in the described sole, described light-emitting device links to each other with described pick-up unit.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the front view of the gas-detecting device that provides of the embodiment of the invention, and Fig. 2 is the vertical view of the gas-detecting device that provides of the embodiment of the invention, wherein, 1 is the footwear body, and 2 is the sole that removably links to each other with footwear body 1, and 3 for being arranged on the light-emitting device on the footwear body 1.
Provided by the invention for detection of SF 6The gas-detecting device of gas is shoe-shaped, and namely it is actually a kind of gas and detects footwear.In the present invention, footwear has general significance, as comprises footwear body and sole, and wherein, the footwear body comprises again vamp and upper of a shoe, and sole comprises sole bottom surface and sole side etc.To this, those skilled in the art can understand with reference to the shoe-shaped in the life, and the present invention there is no particular restriction.In addition, the present invention does not have particular restriction to the material that described gas detects footwear, satisfies the relevant work place and requires to get final product.
In the present invention, described gas detects footwear and comprises footwear body 1 and sole 2, and sole 2 removably links to each other with footwear body 1, is convenient to pick-up unit and light-emitting device etc. is overhauled and changes.The present invention does not have particular restriction to the connected mode of footwear body 1 and sole 2, the connected modes such as buckle connection well known to those skilled in the art, bolt connection all can, sole 2 and footwear body 1 are detachably got final product.
Be provided with pick-up unit in the sole 2, the effect of described pick-up unit is to detect SF 6Gas.In the present embodiment, described pick-up unit comprises testing circuit and the power supply that links to each other with described testing circuit.
Referring to Fig. 3, the structural representation of the testing circuit of the gas-detecting device that Fig. 3 provides for the embodiment of the invention, wherein 31 is the voltage supplying module, 32 is SF 6The gas sensing module, 33 is signal processing module, 34 are the response warning module.
Voltage supplying module 31 links to each other with power supply, and stable voltage is provided.In the present embodiment, described power supply is preferably rechargeable battery, for testing circuit, light-emitting device etc. provides power supply.
Voltage supplying module 31 comprises circuit of three-terminal voltage-stabilizing integrated 311, this circuit of three-terminal voltage-stabilizing integrated can for 7805 or other, the signal input part of this circuit of three-terminal voltage-stabilizing integrated links to each other with power supply, signal output part and SF 6The signal input part of gas sensing system links to each other, and makes the output of voltage stabilization luffing, supplies with SF 6The gas sensing system.In other embodiments, voltage supplying module 31 can also comprise diode 312, and the anode of diode 312 links to each other with power supply, and negative electrode links to each other with the signal input part of circuit of three-terminal voltage-stabilizing integrated 311, can guarantee the positive dirction of voltage.In other embodiments, voltage feed system 31 also comprises the electric capacity, resistance of the signal output part that is connected to circuit of three-terminal voltage-stabilizing integrated etc., is used for filtering interference signals, makes the voltage stabilization supply.
SF 6 Gas sensing module 32 comprises SF 6 Detector 321 and voltage follower 322.SF 6The signal input part of detector 321 links to each other with the signal output part of circuit of three-terminal voltage-stabilizing integrated, and signal output part links to each other with the signal input part of voltage follower 322.SF 6 Detector 321 can be responded to SF 6Gas produces the sensor current signal of response, and outputs it to voltage follower 322.In the present embodiment, SF 6Detector is TGSSF 6Detecting device, in other embodiments, SF 6Detector also can be SF other models, well known to those skilled in the art 6Detector.The signal input part of voltage follower 322 and SF 6The signal output part of detector 321 links to each other, and signal output part links to each other with signal processing system 33.SF 6 Detector 321 can be to the SF of the variable concentrations in the environment 6The current signal of γ-ray emission varying strength is transferred to voltage follower 322 by its output; SF 6Gas concentration changes the fluctuation that causes electric current also can respond output by voltage follower 322 at any time timely, thereby realizes detecting in good time.
Signal processing module 33 comprises the first differential amplifier 331 and the second differential amplifier 332, the signal input part of the first differential amplifier 331 links to each other with the signal output part of voltage follower 22, and signal output part links to each other with the signal input part of the second differential amplifier 322; The signal output part of the second differential amplifier links to each other with the signal input part of response warning module 34.Voltage follower 322 is exported voltage signal, successively through the first differential amplifier 331 and the second differential amplifier 332, two differential amplifier receiver voltage signal, can effectively make inhibition for common-mode signal, and the difference of signal made significant response, clearly pass to response early warning system 34 after will signal amplifying.
Response warning module 34 comprises voltage comparator 341, and the first signal input end of voltage comparator 341 links to each other with the signal output part of the second differential amplifier 332,, the input of secondary signal input end has threshold voltage, and signal output part links to each other with light-emitting device 4.Voltage signal and described threshold voltage through amplifying that voltage comparator 341 will receive compare, and be luminous according to comparative result control light-emitting device 3, thereby accurately illustrate SF in the environment 6The concentration of gas, and whether leakage is arranged.
Light-emitting device 3 is arranged on the footwear body, links to each other with testing circuit, receives behind the voltage signal come from testing circuit luminous.In the present embodiment, light-emitting device 3 is arranged on the vamp of footwear body 1, can more clearly be sensed by the staff.In the present embodiment, light-emitting device 3 can for a plurality of LED light emitting diodes, be evenly distributed on the vamp of footwear body.Each LED light emitting diode can corresponding different SF 6Gas concentration, and can indicate at vamp, SF indicated 6The leakage concentration scale of gas.Testing circuit is according to SF 6Gas concentration passes to the LED light emitting diode with different voltage signals, and makes the LED lumination of light emitting diode of varying number according to voltage swing, thereby realizes SF 6The detection of gas and warning, and demonstrate SF in the workplace 6The leakage concentration of gas or leakage class etc.In other embodiments, the LED light emitting diode also can show different brightness according to different voltage signals, realizes SF 6The detection of gas and warning.
In the present embodiment, be provided with cavity 4 on the sole 2, pick-up unit can be positioned in the cavity 4.When pick-up unit comprises testing circuit with power supply that described testing circuit links to each other the time, power supply can be positioned in the cavity at sole 2 heel places, and testing circuit can be positioned in the cavity at sole 2 sole places.
In another embodiment provided by the invention, also comprise sound-producing device 5, described generating means links to each other with pick-up unit, particularly, can link to each other with the signal output part of voltage comparator 341, the receiver voltage signal and under the effect of voltage signal sounding, thereby play warning function.Described sound-producing device can be arranged on the side of sole 2, and described sound-producing device can for a plurality of, evenly be arranged on the side of sole 2.When sound-producing device when being a plurality of, can control the sound-producing device sounding of different numbers from the different signal of voltage comparator 341, thereby realize SF 6The detection of gas and early warning.Similar to light-emitting device, in other embodiments, sound-producing device also can send according to the difference of voltage signal the sound of different sizes, thereby realizes SF 6The detection of gas and early warning.In the present embodiment, described sound-producing device is hummer.
Gas-detecting device provided by the invention can only comprise light-emitting device, also can only comprise sound-producing device, can also comprise simultaneously light-emitting device and sound-producing device.When comprising light-emitting device and sound-producing device simultaneously, the DISPLAY ORDER of sound-producing device and light-emitting device can be identical, also can be different.In the present embodiment, it is luminous that the signal that comes from voltage comparator 341 at first drives light-emitting device, after voltage acquires a certain degree, drives the sound-producing device sounding.
The principle of work of gas-detecting device provided by the invention is as follows:
SF 6Detector is sensed SF 6Gas, and change into the current signal of varying strength according to different concentration, export to voltage follower;
Voltage follower exports signal to signal processing system, exports to voltage comparator after the processing of process two differential amplifier and the amplification;
Voltage comparator is according to the light-emitting device of the signal controlling varying number of different sizes and/or sound-producing device is luminous and/or sounding, plays alarm function, and the prompting staff in time leaves, and carries out SF 6The row of gas is leaked work or is taked corresponding safety prevention measure.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims (10)

1. gas-detecting device is for detection of SF 6Gas is characterized in that, it is shoe-shaped, comprises footwear body and the sole that removably connects with described footwear body, is provided with light-emitting device on the described footwear body, is placed with pick-up unit in the described sole, and described light-emitting device links to each other with described pick-up unit.
2. gas-detecting device according to claim 1 is characterized in that, described light-emitting device is arranged on the vamp of described footwear body.
3. gas-detecting device according to claim 2 is characterized in that, described light-emitting device is a plurality of LED light emitting diodes.
4. gas-detecting device according to claim 3 is characterized in that, described a plurality of LED light emitting diodes are evenly distributed on the vamp of described footwear body.
5. gas-detecting device according to claim 1 is characterized in that, is provided with cavity on the described sole, and described pick-up unit is positioned in the described cavity.
6. gas-detecting device according to claim 5, it is characterized in that, described pick-up unit comprises testing circuit and the power supply that links to each other with described testing circuit, and described power supply is positioned in the cavity at heel place of sole, and described testing circuit is positioned in the cavity at sole place of sole.
7. gas-detecting device according to claim 6 is characterized in that, described testing circuit comprises:
The voltage supplying module, described voltage supplying module comprises circuit of three-terminal voltage-stabilizing integrated;
The SF that links to each other with described circuit of three-terminal voltage-stabilizing integrated 6The gas sensing module, described SF 6The gas sensing module comprises the SF that links to each other with the output terminal of described circuit of three-terminal voltage-stabilizing integrated 6Detector and with described SF 6The voltage follower that the output terminal of detector links to each other;
With the signal processing module that the output terminal of described voltage follower links to each other, described signal processing module comprises the second differential amplifier that the first differential amplifier of linking to each other with the output terminal of described voltage follower links to each other with output terminal with described the first differential amplifier;
With the voltage comparator that the output terminal of described the second differential amplifier links to each other, described voltage comparator links to each other with described light-emitting device.
8. the described gas-detecting device of any one is characterized in that according to claim 1～7, also comprises a plurality of sound-producing devices that are arranged on the described sole, and each sound-producing device all links to each other with described pick-up unit.
9. gas-detecting device according to claim 8 is characterized in that, described a plurality of sound-producing devices evenly are arranged on the side of described sole.
10. gas-detecting device according to claim 9 is characterized in that, described sound-producing device is hummer.
CN 201320122915 2013-03-19 2013-03-19 Gas detection device Expired - Fee Related CN203241348U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245664A (en) * 2013-03-19 2013-08-14 华北电力大学（保定） Gas detecting device
CN103637469A (en) * 2013-11-28 2014-03-19 涂国坚 Slippers having air detection warning function and convenient to clean
CN103637503A (en) * 2013-11-28 2014-03-19 涂国坚 Slipper with adhesive structure on sole and with air detection alarm function
CN103637467A (en) * 2013-11-28 2014-03-19 涂国坚 Slippers having air detection warning function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245664A (en) * 2013-03-19 2013-08-14 华北电力大学（保定） Gas detecting device
CN103637469A (en) * 2013-11-28 2014-03-19 涂国坚 Slippers having air detection warning function and convenient to clean
CN103637503A (en) * 2013-11-28 2014-03-19 涂国坚 Slipper with adhesive structure on sole and with air detection alarm function
CN103637467A (en) * 2013-11-28 2014-03-19 涂国坚 Slippers having air detection warning function

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131016

Termination date: 20140319