EP1169888A1 - Vorrichtung zur beseitigung statischer elektrizität während abstellen , be- und entladen von entzündbaren und explosieven materialien - Google Patents

Vorrichtung zur beseitigung statischer elektrizität während abstellen , be- und entladen von entzündbaren und explosieven materialien

Info

Publication number
EP1169888A1
EP1169888A1 EP99903523A EP99903523A EP1169888A1 EP 1169888 A1 EP1169888 A1 EP 1169888A1 EP 99903523 A EP99903523 A EP 99903523A EP 99903523 A EP99903523 A EP 99903523A EP 1169888 A1 EP1169888 A1 EP 1169888A1
Authority
EP
European Patent Office
Prior art keywords
energy
diode
cable
condenser
ground
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
Application number
EP99903523A
Other languages
English (en)
French (fr)
Other versions
EP1169888B1 (de
Inventor
Anovi&Cacute Mi&Cacute o GA&Ccaron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1169888A1 publication Critical patent/EP1169888A1/de
Application granted granted Critical
Publication of EP1169888B1 publication Critical patent/EP1169888B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05FSTATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00Carrying-off electrostatic charges
    • H05F3/02Carrying-off electrostatic charges by means of earthing connections

Definitions

  • the invention belongs to the field of devices for the elimination of static electricity and according to the International Patent Classification (IPC), it can be classified in the classes B 65 D 90/46 and H05F.
  • IPC International Patent Classification
  • anti-static band transparent band- to connect in the electric sense of the word, the observed geometry with Earth
  • Static electricity is, however, the result of the superimposition of two layers (speaking plainly a result of friction).
  • Every technological process or action is characterized by certain parameters and possible outcomes.
  • the discussed technological process or the result of mentioned technological operations are characterized by the presence of the concentration of explosive compounds.
  • the existing compound can be lit by a spark with the minimal ignition energy. If the grounding of the observed geometries-volumes is secured, it will produce sudden immediate balancing of energy by discharge between the electrostatic energy cumulative points which are found distributed over the ground and volume of the observed geometry (in the concrete case, fuel-carrying vehicle) and Earth (ground coupled system as a point of reference). Earth as geometry or body possesses the greatest energy level with regard to all the other bodies (geometry Ds) placed and maintained on Earth.
  • the observed object can be considered as if it were isolated and balanced by electrostatic system with regard to the other system. If, on the observed object (concerning a discussed technological process - operation), the mentioned technological operations are performed and if the mentioned object, as an isolated electrostatic system we might wish to connect forcibly to some other observed electrostatic system (in the concrete case, a fuel-carrying vehicle, directly connected to a coupled grounding earth plate by band) it will forcibly produce balancing of electrostatic energy cumulative points.
  • the observed electrostatic system will be characterized by the presence of the electrostatic cumulative energy points, representing no longer an isolated and balanced system, but it will provoke the need for electrostatic balancing between electrostatic energy cumulative points in the interior and on the surface of the discussed volume-object. That will escalate into a condition of cumulative discharge (lightening impulses or sparkling) with the sufficient minimal energy of ignition necessary to ignite the explosive mixture.
  • electrostatic cumulative energy points representing no longer an isolated and balanced system
  • electrostatic balancing between electrostatic energy cumulative points in the interior and on the surface of the discussed volume-object That will escalate into a condition of cumulative discharge (lightening impulses or sparkling) with the sufficient minimal energy of ignition necessary to ignite the explosive mixture.
  • grounding is nothing but a particular case of the elimination of static electricity, but it cannot serve as a sufficient measure for the elimination of static electricity, particularly with the technological processes or operations we observe, namely, racking, transportation and loading/unloading of oil derivatives, inflammable gases and liqiuds, explosive materials (explosives) and solid inflammable materials- because it can provoke fire and explosion. There is no need to discuss the discharge of static electricity into Earth.
  • the aim of the invention has been to produce a device for the removal of static electricity without external input drive that will produce energy balance between the power points of electrostatic energy discussed (concretely, an oil cistern and part of the Earth ground where a ground-coupled plate is placed ) so as not to produce a cumulative discharge by lightening impulses or sparkling. (As it has previously been said, lightening impulse or sparkling with enough energy to ignite the concentration of explosive mixtures.)
  • the device for the elimination of static electricity (stated in the title of an invention) consists of a cage used for the implant of energy chip, tin roof for the fastening of the box, a column bearing on one side a cage with the device and on the other side three branches, is placed into the ground, two cables, one of which serves for the connection of the device with the considered geometry (concretely, cistern with oil) and the other which serves for the connection of the device with the ground -coupled plate, crocodile clips for the fixing of cables on the considered geometry (object), branch for the connection of that device with the ground-coupled plate grounding and crotches for the winding of cable with the clamps.
  • the winding of the cable can be resolved by means of an automatic roller, too.
  • the device can also be placed without a column if so demanded by technological and operation circumstances.
  • the operation principle of this device is characterized by enabling balancing of energy between electrostatic cumulative points on the considered geometry (for example- oil cistern) and ground-coupling with Earth, and not to use during its operation energy of external feed, and thus it belongs to the group of passive devices.
  • the feed of that device is secured from the existing resources of energy at the cumulative points of electrostatic energy of the two considered electrostatic systems.
  • the device is characterized by simple handling, maintenance and storage.
  • the device shown schematically in Figure 1 consists of the following elements-cage 11 , made and shaped according to operating conditions for a specified purpose in which an energy chip 22 is placed on a specified supporting board, fastened by bolts in the inside of a cage, tin roof 99 fastened by bolts on column 77, bearing a tin roof and a cage, cable 44 ending in crocodile clamps 33, cable 55 which connects device at the branch 66, that has been attached by bolts on column 77, with the ground-coupled grounding 78.
  • the first energy branch of the device is constituted by elements connected between the points 4,5J ,2,and 3. That branch of a device consists of a parallel connection between a condenser C and glittering diode Tl in points 2 and 3, or 1 and 3, condenser C2 connected between the points 3 and 4 and diode Dl connected between the points 1 and 4 or 5 and 4.
  • the constituent part of the first energy branch also includes a cable 44, which ends in an isolated crocodile clamp 33, which is placed on the mentioned object 12.
  • the second energy branch consists of a parallel connection between a resistor R3 and condenser C4, connected between the points 7 and 8, and the resistor Rl connected between the points 7 and 3, diode D2 connected between the points 6 and 7 and condenser C3 connected between points 3 and 6.
  • the constituent part of the second energy branch is a cable 55 by which the device is connected to the band (ground- coupled grounding plate) 78. Then ground-coupled plate grounding 78 is observed as a point of reference and need not always appear as it has been shown in figure 2.) (connection with the ground), but another point of reference may be chosen on another cumulative point of electrostatic energy.
  • the resistor R2 is connected between the points 4 and 6.
  • the elements connected between the points 4, 6 and 3,i.e condensers C2 and C3, and the resistor R2 are elements of a branch for the exchange of the energy levels of the created electrostatic energy.
  • the way of connecting the device 11 to the cistern vehicle 12 has been shown. We should mention here that the manner of connecting is the same for all discussed geometries-volumes. Also, instead of the isolated crocodile clamps, it is possible to use the isolated clamp.
  • the operation of the device for the elimination of static electricity is used for the racking, transportation and unloading of oil and oil derivatives, inflammable gases and fuels and alike (as it has been defined in the title of the application), and it is based on the balancing of energy between the electrostatic energy cumulative points defined by time constants of the electrical field (in the field of electric and volume resistance), from the point of view of static electricity, so as not to produce cumulative discharge (lightening or sparkling).
  • electrostatic energy systems which are characterized by the cumulative points of electrostatic energy
  • one is the Earth surface where a ground-coupled plate 78 is placed, and the other is, concretely, the cistern with oil, the electrostatic energy of which should be balanced with regard to the first system (because it always invariably possesses higher energy potential).
  • the first branch for the electrostatic energy balancing which encompasses elements of the electric circuit marked by 33, 44, Cl ,T1 , C2, Dl and on the side of the ground-coupled plate grounding, there is the other branch for electric balancing comprising elements of electric circuit marked with 78, 55, R3, C4, D2, Rl , C3.
  • the branch of the elements C2, C3 and R2 connected between the points 3,4 and 6 is the branch for the exchange of the energy levels of the created electrostatic energy of the first and second branch (of the two energy systems and the above discussed systems).
  • the exchange of energy levels between the cumulative points of electrostatic energy of the two above discussed systems is performed through the glittering discharge defined in time constants and it is harmless for the considered technological operation (defined in the title of an invention) .
  • the duration of the exchange of electrostatic energy between the two energy levels of the two mentioned systems until balancing is defined by time constants in the field of electric and volume resistance determined and defined in the manner defined in the text above.
  • the energy chip which enables the function of the elimination of static electricity by the method of energy level exchange (method of balancing) between the storage points of electrostatic energy of the two above discussed, non-isolated systems, consists of elements shown in figure 2.
  • the choice of the given elements is performed depending on the kind of the material chosen characterized by electric, surface and volume resistance.
  • the number of energy exchanges between the energy levels of the considered cumulative points of electrostatic energy also depends on the kind of dangerous material under discussion.
  • Every dangerous material is characterized by electric, surface and volume resistance, and on the basis of it we determine time coordinates (time of relaxation, produced by contact, of the double layer fold) and from the value of the time constants we perform calculations and choose electric elements which enable the functioning of energy chip.
  • time coordinates time of relaxation, produced by contact, of the double layer fold
  • time constants we perform calculations and choose electric elements which enable the functioning of energy chip.
  • the electrostatic energy will be redeemed by condensers and so, the first condenser Cl will transmit its electrostatic energy to the glittering diode Tl and condensers C2 and C3 will mutually transmit the electrostatic energy from one to the other through the resistor R2 (by the correct choice of C2 and C3 in the function of the number of energy exchanges among the energy levels of the considered electrostatic energy cumulative power, which is again in the function of the kind of the dangerous material considered) .
  • the operating area of the energy chip 22, and also a device, is in the field of volume resistance.
  • the technical solution in the described device is based on the entirely new approach to the elimination of the static electricity (as described in the application). Unlike the known solutions in the state of the art, this device does not direct the discharge of static electricity towards the Earth, but only the balancing of energy levels between electrostatic cumulative points in the two systems.
  • This device is the new constructive solution in the domain of such types of devices and enables complete safety and reliability of work of the mentioned operations from the point of view of those hazards provoked by static electricity.
  • This device is tested and examined in real operating conditions and its application is checked during the performance of the mentioned technological operations (racking, transportation and unloading) with 816 dangerous materials (as designated in the annex to this application and forwarded with the text of the description). For each of the above mentioned described materials, one must perform appropriate dimension evaluation oOf electric elements in energy chip, depending on the electric characteristics of the material in question (electric, surface and volume resistance).

Landscapes

  • Elimination Of Static Electricity (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
EP99903523A 1999-02-15 1999-02-15 Vorrichtung zur beseitigung statischer elektrizität während abstellen , be- und entladen von entzündbaren und explosieven materialien Expired - Lifetime EP1169888B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/YU1999/000002 WO2000048434A1 (en) 1999-02-15 1999-02-15 Device for static electricity elimination used during racking, transportation and loading/unloading of inflammable or explosive materials

Publications (2)

Publication Number Publication Date
EP1169888A1 true EP1169888A1 (de) 2002-01-09
EP1169888B1 EP1169888B1 (de) 2004-01-14

Family

ID=25559987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99903523A Expired - Lifetime EP1169888B1 (de) 1999-02-15 1999-02-15 Vorrichtung zur beseitigung statischer elektrizität während abstellen , be- und entladen von entzündbaren und explosieven materialien

Country Status (7)

Country Link
EP (1) EP1169888B1 (de)
AT (1) ATE258005T1 (de)
AU (1) AU2352799A (de)
CA (1) CA2401517C (de)
DE (1) DE69914225T2 (de)
EA (1) EA003411B1 (de)
WO (1) WO2000048434A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5626057B2 (ja) * 2011-03-22 2014-11-19 パナソニック株式会社 空気調和機の室内機
US20230044164A1 (en) * 2021-03-16 2023-02-09 Jeffrey Demille Bonding equipment safety apparatus, a bonding equipment safety system and related method of use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO153790C (no) * 1983-12-16 1986-05-28 Alf Mortensen Kontrollsystem for avledning/utligning av elektriske potensialer mellom to gjenstander, f.eks. tankanlegg og tankkjoeretoey ved omlasting av brann-/eksplosjonsfarlige fluider.
US4958255A (en) * 1988-12-28 1990-09-18 Hewlett-Packard Company Electrostatic discharge and electromagnetic interference protection circuit
US5159523A (en) * 1990-10-24 1992-10-27 Cornerstone Fuels, Inc. Grounding system and detection circuit for fueling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0048434A1 *

Also Published As

Publication number Publication date
EA200100781A1 (ru) 2002-02-28
WO2000048434A1 (en) 2000-08-17
EP1169888B1 (de) 2004-01-14
AU2352799A (en) 2000-08-29
CA2401517C (en) 2009-08-25
DE69914225D1 (de) 2004-02-19
CA2401517A1 (en) 2000-08-17
DE69914225T2 (de) 2004-11-11
ATE258005T1 (de) 2004-01-15
EA003411B1 (ru) 2003-04-24

Similar Documents

Publication Publication Date Title
KR101230156B1 (ko) 스파크 기폭기를 이용한 비전기식 뇌관의 기폭장치 및 이를 이용한 발파 시공 방법
EP1169888B1 (de) Vorrichtung zur beseitigung statischer elektrizität während abstellen , be- und entladen von entzündbaren und explosieven materialien
Gaćanović Passive elimination of static electricity in oil industry
Hearn Electrostatic ignition hazards from flexible intermediate bulk containers (FIBCs) with materials of minimum ignition energies down to 0.12 mJ
Popescu et al. SPECIFIC PREVENTION MEASURES AND RULES FOR THE CONTROL OF THE INITIATION RISKS OF FIRES AND EXPLOSIONS. ELECTRIZATION PHENOMENA FOR AUTO FEEDER FUEL SUPPLY. CAR RAMPS FROM ABOVE GROUND RAMPS DEPOTS AND PUBLIC ROAD CIRCULATION.
EA009339B1 (ru) Безопасная электрическая инициирующая свеча для электрических детонаторов
Gabor et al. An innovative method for testing electronic detonating caps regarding sensitivity to electrostatic discharges
Sontake Nonconductive flammable liquids & static electricity dangers in chemical & petroleum installations
Părăian et al. Risk of ignition of liquid fuels by electrostatic discharge
Kassebaum et al. Controlling static electricity in hazardous (classified) locations
Vishwakarma et al. Development of dust ignition protected electrically powered forklift truck for combustible dust environment
Fotău et al. Tests Carried Out on Cable Entries and their Importance within the Certification Process of Explosion-Proof Equipment
DE3215455C2 (de) Überwachungsanordnung
Mohamed Shaluf An overview on static electricity
Wilson et al. Bonding and grounding in aerospace vehicles and ground equipment
CN109310001B (zh) 一种安全可靠的有源油品静电消除器
Păun et al. Research regarding the electrification risk of materials, technical equipment and appearance of electrostatic discharges in the presence of explosive atmospheres
JP2002231493A5 (de)
CN1539720A (zh) 石油及石油产品无源消静电装置
Clark The Electrical Section of the Bureau of Mines: Its Purpose and Equipment
Bloswick An introduction to electrical safety for engineers
Vatavu et al. RESEARCH REGARDING DEVELOPMENT OF MECHANICAL TESTING METHODS FOR MINE ELECTRIC CABLES HAVING IN VIEW THEIR CERTIFICATION IN VOLUNTARY FIELD
Barrett Assessment and control of electrostatic charges
Heidelberg Test and Judgement of ignition hazards caused by electrostatic spray guns and charged surfaces without the use of explosive mixtures
Britton et al. Analysis of a dust deflagration

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010806

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FI FR GB GR IT LI NL PT SE

AX Request for extension of the european patent

Free format text: MK PAYMENT 20010915;RO PAYMENT 20010915;SI PAYMENT 20010915

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FI FR GB GR IT LI NL PT SE

AX Request for extension of the european patent

Extension state: MK RO SI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20040114

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040114

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69914225

Country of ref document: DE

Date of ref document: 20040219

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040414

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040414

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040425

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040414

26N No opposition filed

Effective date: 20041015

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040614

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110217

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69914225

Country of ref document: DE

Effective date: 20120901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120901