CN102940931B - Intrinsic safety type device and system for preventing static electricity on human body during self-service refueling as well as use method thereof and application thereof - Google Patents
Intrinsic safety type device and system for preventing static electricity on human body during self-service refueling as well as use method thereof and application thereof Download PDFInfo
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- CN102940931B CN102940931B CN201210400711.9A CN201210400711A CN102940931B CN 102940931 B CN102940931 B CN 102940931B CN 201210400711 A CN201210400711 A CN 201210400711A CN 102940931 B CN102940931 B CN 102940931B
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Abstract
The invention discloses an intrinsic safety type device for preventing static electricity on a human body during self-service refueling; the intrinsic safety type device comprises a human body static electricity eliminating part, an explosion-proof pressure switch, a refueling gun interlocking device, a speech prompting device and a control device, wherein the human body static electricity eliminating part is used for realizing safety leakage of human body static electricity; the explosion-proof pressure switch is used for guaranteeing effective contact between the human body and the human body static electricity; the refueling gun interlocking device is used for guaranteeing that the refueling operation cannot be performed before the human body static electricity is eliminated; and the speech prompting device is used for prompting an operator to do related operations. The intrinsic safety type device for preventing the static electricity on the human body during the self-service refueling, disclosed by the invention, has the advantages as follows: through the adoption of the explosion-proof pressure switch and the refueling gun interlocking device, a factor that refueling personnel only can refuel after static electricity eliminating operation is ensured; and through the adoption of the human body static electricity eliminating part, the static electricity of the human body is safely released; and through the adoption of the speech prompting device, user-friendly services are provided.
Description
Technical field
The invention belongs to self-service refueling technical field, relate in particular to a kind of intrinsic safety type self-service refueling body's static electricity preventing system that is applied to self-service station.
Background technology
Self-service refueling pattern has operating experience for many years all over the world, China has also started pilot self-service refueling pattern, and aspect the antistatic of self-service station, the anti-static precautions of existing self-service refueling system is mainly reflected on nozzle, by nozzle ground connection, the static guiding on nozzle is removed.But the blast accident that self-service station endogenous cause of ill static electricity on human body causes happens occasionally, as in February, 2004, in self-service station of the U.S., when an American Women is extracted nozzle, ignited gasoline vapor cause big fire of static with it,, therefore, must take corresponding measure, avoid the impact of static electricity on human body on self-service station.
By analyze self-service station blast accident we find, static electricity on human body is most important incendiary source, the static electricity on human body must take measures to eliminate self-service refueling time.If can guarantee that Oil supplier completes the electrostatic leakage of human body before refueling operation, can greatly strengthen undoubtedly the electrostatic safety of self-service refueling process, this patent proposes in this background.
Summary of the invention
Technical problem to be solved by this invention is to utilize computer technology, a kind of intrinsic safety type self-service refueling body's static electricity preventing system is provided, adopt this system only can guarantee just to carry out refueling operation completing after static electricity on human body releases, thereby can prevent the generation of the blast accident that static electricity on human body causes, avoid the impact of static electricity on human body on self-service station.
For solving the problems of the technologies described above, the invention provides a kind of intrinsic safety type self-service refueling body's static electricity preventing device, it comprises:
Static electricity on human body eliminates parts, explosion-proof type pressure switch, nozzle interlock, speech prompting device and control device;
Described static electricity on human body eliminates parts for realizing static electricity on human body's safety relief;
Described explosion-proof type pressure switch is for ensureing that human body and static electricity on human body eliminate the effectiveness that parts contact;
Described nozzle interlock is used for ensureing can not carrying out refueling operation before human body eliminostatic;
Described speech prompting device is used for reminding operator to carry out associative operation.
Wherein, described explosion-proof type pressure switch is positioned at described static electricity on human body and eliminates below parts, the pressure of described explosion-proof type pressure switch transmission staff push switch and time signal are to control device, described control device is by receiving signal and judging, and by judgement result feedback to nozzle interlock, realize the release of nozzle, complete refueling operation.
The present invention also provides a kind of intrinsic safety type self-service refueling body's static electricity preventing system being applied in above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device, and it comprises:
Explosion-proof type pressure switch control module, the chain control module of nozzle, signal processing module and voice reminder module;
Described signal processing module receives the signal of explosion-proof type pressure switch control module, the chain control module of fuel charger, and the associated control signal producing by described signal processing module is passed to voice reminder module and the chain control module of fuel charger.
Wherein, describedly in the time that operator eliminate static, touch above-mentioned explosion-proof type pressure switch, described explosion-proof type pressure switch control module is being eliminated the signal of static and the pressure of push switch and compressing time signal by human body and is being passed to described signal processing module simultaneously;
Described signal processing module is by the pressure of push switch and the signal of compressing time that judge that the transmission of described explosion-proof type pressure switch control module comes, judge that eliminostatic completes, the control signal of generation is passed to the chain control module of described nozzle, realize nozzle release;
The chain control module of described nozzle, for receiving the control signal of described signal processing module and the status signal of nozzle, if the chain control module of nozzle does not receive the unlocking signal of described signal processing module and receives the signal that nozzle is picked up, nozzle malfunction signal is passed to described signal processing module by the chain control module of nozzle; If the chain control module of nozzle receives the unlocking signal of described signal processing module, control the release of described nozzle interlock, realize and refueling, after having refueled, oiling settling signal is passed to described signal processing module;
Described signal processing module also passes to signal described voice reminder module, reminds operator to refuel and eliminate electrostatic operation by speech prompting device described in described voice reminder module controls.
Determined by leak resistance and body capacitance, and get certain safe clearance the movement time of described explosion-proof type pressure switch control module.
The present invention also provides the using method of above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device:
Eliminate static, fuel charger interlock by the chain control module of nozzle send nozzle by the signal of malfunction to control device, remind operator to carry out the static electricity that disappears;
Eliminostatic completes, press described explosion-proof type pressure switch, press pressure is 2N, and compressing time is 3 τ, the signal of compressing time and press pressure is passed to the signal processing module on control device by described explosion-proof type pressure switch control module, and judgement is eliminated static and completed;
Release is refueled, and control device passes to the chain control module of described nozzle by eliminating the signal that static completes described in described signal processing module control, thereby controls nozzle interlock, realizes nozzle release and refueling operation.
The present invention also provides above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device and the application of intrinsic safety type self-service refueling body's static electricity preventing system in refueling process.
The technique effect that the present invention is useful is:
1. use explosion-proof type pressure switch, nozzle interlock, guarantee that the Oil supplier electrostatic operation of having carried out disappearing just can carry out fueling operation.
2. use human body eliminostatic parts, guarantee human-body safety static electricity discharge.
3. use speech prompting device, human nature service is provided.
Brief description of the drawings
Fig. 1 is intrinsic safety type self-service refueling body's static electricity preventing system architecture diagram described in the embodiment of the present invention.
Detailed description of the invention
The invention provides a kind of intrinsic safety type self-service refueling body's static electricity preventing device, it comprises:
Static electricity on human body eliminates parts, explosion-proof type pressure switch, nozzle interlock, speech prompting device and control device;
Described static electricity on human body eliminates parts for realizing static electricity on human body's safety relief;
Described explosion-proof type pressure switch is for ensureing that human body and static electricity on human body eliminate the effectiveness that parts contact;
Described nozzle interlock is used for ensureing can not carrying out refueling operation before human body eliminostatic;
Described speech prompting device is used for reminding operator to carry out associative operation.
Described explosion-proof type pressure switch is positioned at described static electricity on human body and eliminates below parts, the pressure of described explosion-proof type pressure switch transmission staff push switch and time signal are to control device, described control device is by acknowledge(ment) signal and judge, and by judgement result feedback to nozzle interlock, realize the release of nozzle, complete refueling operation.
It is 10 that described static electricity on human body eliminates parts employing surface resistivity
7～10
11the sub-conductor material of Ω, can make helmet shape, and described sub-conductor material can be sub-conductor plastics or sub-conductor rubber.
The present invention also provides a kind of intrinsic safety type self-service refueling body's static electricity preventing system being applied in above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device, and it comprises:
Explosion-proof type pressure switch control module, the chain control module of nozzle, signal processing module and voice reminder module;
Described signal processing module receives the signal of explosion-proof type pressure switch control module, the chain control module of fuel charger, and the associated control signal producing by described signal processing module is passed to voice reminder module and the chain control module of fuel charger.
Further, in intrinsic safety type self-service refueling body's static electricity preventing system:
Describedly in the time that operator eliminate static, touch above-mentioned explosion-proof type pressure switch, described explosion-proof type pressure switch control module is being eliminated the signal of static and the pressure of push switch and compressing time signal by human body and is being passed to described signal processing module simultaneously;
Described signal processing module is by the pressure of push switch and the signal of compressing time that judge that the transmission of described explosion-proof type pressure switch control module comes, judge that eliminostatic completes, the control signal of generation is passed to the chain control module of described nozzle, realize nozzle release;
The chain control module of described nozzle, for receiving the control signal of described signal processing module and the status signal of nozzle, if the chain control module of nozzle does not receive the unlocking signal of described signal processing module and receives the signal that nozzle is picked up, nozzle malfunction signal is passed to described signal processing module by the chain control module of nozzle; If the chain control module of nozzle receives the unlocking signal of described signal processing module, control the release of described nozzle interlock, realize and refueling, after having refueled, oiling settling signal is passed to described signal processing module;
Described signal processing module also passes to signal described voice reminder module, reminds operator to refuel and eliminate electrostatic operation by speech prompting device described in described voice reminder module controls.
Determined by leak resistance and body capacitance, and get certain safe clearance the movement time of described explosion-proof type pressure switch control module.
Human body contacts the time that sub-conductor material carries out electrostatic leakage and can calculate according to following formula.
Human body can be equivalent to an electric capacity, and the size of body capacitance is generally 50pF～1000pF, human body resistance general 10
3～10
6Ω.Static electricity on human body's process of releasing can be equivalent to capacitor discharge process, and the change curve of capacitor discharge can calculate according to following formula:
τ=RC
In formula: U is body voltages, U
0for human body initial voltage, e is natural constant, and τ is time constant, and R is leak resistance, and C is body capacitance.
It is generally acknowledged that after the 3 τ times of experience, people's volume charge is released complete substantially.
The press pressure of described explosion-proof type pressure switch is determined by testing, correlation test shows, staff is freely generally being greater than 2N by the pressure under condition to one's heart's content, so the starting pressure of explosion-proof type pressure switch should be not less than 2N, need only in this case staff by being pressed in pressure switch, pressure switch is just bound to start, and needs again to avoid misoperation (as wind also has certain pressure in pressure switch) simultaneously, and startup value is decided to be 2N.
The present invention also provides the using method of above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device:
Eliminate static, fuel charger interlock by the chain control module of nozzle send nozzle by the signal of malfunction to control device, remind operator to carry out the static electricity that disappears;
Eliminostatic completes, press described explosion-proof type pressure switch, press pressure is 2N, and compressing time is 3 τ, the signal of compressing time and press pressure is passed to the signal processing module on control device by described explosion-proof type pressure switch control module, and judgement is eliminated static and completed;
Release is refueled, and control device passes to the chain control module of described nozzle by eliminating the signal that static completes described in described signal processing module control, thereby controls nozzle interlock, realizes nozzle release and refueling operation.
The present invention also provides above-mentioned intrinsic safety type self-service refueling body's static electricity preventing device and the application of intrinsic safety type self-service refueling body's static electricity preventing system in refueling process.
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
Embodiment 1
As shown in Figure 1, static electricity on human body eliminates parts, and adopting surface resistivity is 10
8the sub-conductor rubber of Ω is made helmet shape, is worn over operator's head, because human body resistance is generally less than 10
6Ω, thus leak resistance mainly determined by the resistance of sub-conductor material, getting leak resistance is 10
8Ω, body capacitance is got extremum 1000pF.
3 τ=3RC=3 × 10
8× 1000 × 10
-12=0.3(s)
Get the safe clearance of 10 times, human body needs the electrostatic leakage time of 3s.
Explosion-proof type pressure switch, be positioned at sub-conductor material under, starting pressure is 2N,
Signal processing module 2, be touched signal and exceed 3s when receiving continuously explosion-proof type pressure switch control module 1, signal processing module 2 is given chain control module 4 signals of fuel charger, remove fuel charger interlock, give voice reminder module 3 signals simultaneously, control speech prompting device and remind Oil supplier to refuel; If receive the chain control module 4 of fuel charger about nozzle by the signal of malfunction, signal processing module 2 is given voice reminder module 3 signals, reminds Oil supplier to carry out the static electricity that disappears; If receive the signal that the chain control module 4 of fuel charger completes about oiling, signal processing module 2 is given voice reminder module 3 signals, reminds Oil supplier to put back to nozzle and completes oiling.
Voice reminder module 3, receives the signal of signal processing module 2, makes respectively following prompting: come in pedestrian's body electrostatic leakage; The electricity that disappears completes, and asks self-service refueling; Oiling completes, and puts back to nozzle; Thanks for Your Cooperation, goodbye.
The chain control module 4 of fuel charger, the unlocking signal of reception signal processing module 2, controls described nozzle interlock, completes fuel charger release; The chain control module 4 of fuel charger can also transmit nozzle by the signal of malfunction and refuel settling signal to receiving signal processing module 2.
All above-mentioned these intellectual properties of primary enforcement, do not set restriction this new product of other forms of enforcement and/or new method.Those skilled in the art will utilize this important information, and foregoing amendment, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above, be only preferred embodiment of the present invention, is not the restriction of the present invention being made to other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. intrinsic safety type self-service refueling body's static electricity preventing device, is characterized in that, comprising:
Static electricity on human body eliminates parts, explosion-proof type pressure switch, nozzle interlock, speech prompting device, control device and intrinsic safety type self-service refueling body's static electricity preventing system;
Described static electricity on human body eliminates parts for realizing static electricity on human body's safety relief;
Described explosion-proof type pressure switch is for ensureing that human body and static electricity on human body eliminate the effectiveness that parts contact;
Described nozzle interlock is used for ensureing can not carrying out refueling operation before human body eliminostatic;
Described speech prompting device is used for reminding operator to carry out associative operation; Described explosion-proof type pressure switch is positioned at described static electricity on human body and eliminates below parts, the pressure of described explosion-proof type pressure switch transmission staff push switch and time signal are to control device, described control device is by acknowledge(ment) signal and judge, and by judgement result feedback to nozzle interlock, realize the release of nozzle, complete refueling operation; Described intrinsic safety type self-service refueling body's static electricity preventing system comprises:
Explosion-proof type pressure switch control module, the chain control module of nozzle, signal processing module and voice reminder module;
Described signal processing module receives the signal of explosion-proof type pressure switch control module, the chain control module of fuel charger, and the associated control signal producing by described signal processing module is passed to voice reminder module and the chain control module of fuel charger; In the time that operator eliminate static, touch above-mentioned explosion-proof type pressure switch, described explosion-proof type pressure switch control module is being eliminated the signal of static and the pressure of push switch and compressing time signal by human body and is being passed to described signal processing module simultaneously;
Described signal processing module is by the pressure of push switch and the signal of compressing time that judge that the transmission of described explosion-proof type pressure switch control module comes, judge that eliminostatic completes, the control signal of generation is passed to the chain control module of described nozzle, realize nozzle release;
The chain control module of described nozzle, for receiving the control signal of described signal processing module and the status signal of nozzle, if the chain control module of nozzle does not receive the unlocking signal of described signal processing module and receives the signal that nozzle is picked up, nozzle malfunction signal is passed to described signal processing module by the chain control module of nozzle; If the chain control module of nozzle receives the unlocking signal of described signal processing module, control the release of described nozzle interlock, realize and refueling, after having refueled, oiling settling signal is passed to described signal processing module;
Described signal processing module also passes to signal described voice reminder module, reminds operator to refuel and eliminate electrostatic operation by speech prompting device described in described voice reminder module controls.
2. intrinsic safety type self-service refueling body's static electricity preventing device as claimed in claim 1, is characterized in that: determined by leak resistance and body capacitance, and get certain safe clearance the movement time of described explosion-proof type pressure switch control module.
3. the using method of the intrinsic safety type self-service refueling body's static electricity preventing device described in claim 1 or 2, is characterized in that, comprising:
Eliminate static, fuel charger interlock by the chain control module of nozzle send nozzle by the signal of malfunction to control device, remind operator to carry out the static electricity that disappears;
Eliminostatic completes, press described explosion-proof type pressure switch, press pressure is 2N, and compressing time is 3 τ, the signal of compressing time and press pressure is passed to the signal processing module on control device by described explosion-proof type pressure switch control module, and judgement is eliminated static and completed;
Release is refueled, and control device passes to the chain control module of described nozzle by eliminating the signal that static completes described in described signal processing module control, thereby controls nozzle interlock, realizes nozzle release and refueling operation.
4. the application of the intrinsic safety type self-service refueling body's static electricity preventing device described in claim 1 or 2 in refueling process.
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| CN201210400711.9A CN102940931B (en) | 2012-10-19 | 2012-10-19 | Intrinsic safety type device and system for preventing static electricity on human body during self-service refueling as well as use method thereof and application thereof |
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| CN104773701A (en) * | 2015-03-10 | 2015-07-15 | 山东京博石油化工有限公司 | Safety interlocking control system for crane position loading |
| CN107445132A (en) * | 2016-05-30 | 2017-12-08 | 中国矿业大学(北京) | A kind of coordinated signals refueling device of antistatic |
| CN106865475A (en) * | 2017-03-02 | 2017-06-20 | 北京长吉加油设备有限公司 | The system and method for fuel charger electrostatic detection |
| CN111606296A (en) * | 2020-04-24 | 2020-09-01 | 吴凡 | Intrinsic safety explosion-proof type oiling device |
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| US5605182A (en) * | 1995-04-20 | 1997-02-25 | Dover Corporation | Vehicle identification system for a fuel dispenser |
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