CN104007328A - Portable charge density measurement device for oil product - Google Patents
Portable charge density measurement device for oil product Download PDFInfo
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- CN104007328A CN104007328A CN201410146631.4A CN201410146631A CN104007328A CN 104007328 A CN104007328 A CN 104007328A CN 201410146631 A CN201410146631 A CN 201410146631A CN 104007328 A CN104007328 A CN 104007328A
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- oil product
- charge density
- potential measurement
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- oil
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Abstract
The invention relates to a portable charge density measurement device for an oil product. The portable charge density measurement device mainly solves the problems that an existing charge density measurement device for an oil product is complex in design and inconvenient to carry. According to the portable charge density measurement device for the oil product, one end of a potential measurement sensing probe (2) is located in a metal ball segment (8), and the other end of the potential measurement sensing probe (2) penetrates through an oil-proof rod (6) and is connected with a charge density measuring instrument (7) through a high-voltage insulating test line (4); an insulating component (3) is located between the metal ball segment (8) and the potential measurement sensing probe (2); a ground wire (5) penetrates through the oil-proof rod (6) to make the metal ball segment be grounded; the high-voltage insulating test line (4) transmits electrostatic potential on the potential measurement sensing probe (2) to a potential measurement component (10) in the charge density measuring instrument (7), and then the electrostatic potential is processed and displayed. According to the technical scheme, the problems are well solved, and the portable charge density measurement device can be used for charge density measurement of oil products.
Description
Technical field
The present invention relates to a kind of portable oil product determining charge density device.
Background technology
In the last few years, electrostatic charge of oil accident happened occasionally, if can easily measure the electric density of oil product, the static of staff being evaluated to oil product is dangerous, thereby takes the effective precautionary measures to avoid the generation of accident, and tool is of great significance.
Light fuel major part is all easily band dielectric of high insulation, in the canned conveying operation of the containers such as tank car, basin, easily gathers electric charge and electric discharge.When oil product is used pumping through flow device, can produce in a long time and retain a large amount of electric charges, when charged oil product storage is in oil tank, electric charge just accumulates in oil product, if the quantity of electric charge runs up to enough when large, will cause spark discharge, likely cause and catches fire and explode simultaneously.All once repeatedly there is the explosion accident of oil article vehicle static in countries in the world.
In order to guarantee the electrostatic safety in storing, traditional countermeasure is the flow velocity of restriction oil product, antistatic agent and the technology such as static device that disappear in nearly two, 30 years, have also been there is, but finally still can not eliminate the existence of static, and also all once occurred occurring the example of static blast both at home and abroad in regulation boundary.This just illustrates that limited flow rate is not the Main physical amount that determines electrostatic safety, determines that the essence of electrostatic safety is the carried charge of oil product, i.e. electric density.Most country all agrees to that 30 μ c/m are rational control limits.Some countries have also developed some and have detected method and the instrument of the oil product quantity of electric charge accordingly.This wherein more typically has three kinds.The one, utilize vane electrode to modulate the method that detects of induced signal, it is to utilize the vane electrode cycle screen of ground connection to cover induction electrode, makes the induced signal of the vertical electrode of arc outer defeated periodically, thereby reaches the object of the quantity of electric charge in quantitative description one constant volume.The method is in 300 μ c/m ranges, and error only has 10 μ c/m, but Spiralism type sensor construction is complicated, and needs constant speed motor to drive, and is unfavorable for long-term continuous coverage; The 2nd, measure the method that detects that arc founds electrode potential, it is to utilize charging potential and the electric density in specific environment of the vertical electrode of arc to keep the principle of certain correlativity to measure; The 3rd, measure the methods that detect single or two series connection Faraday cylinder leakage currents, it is to utilize the remittance leakage current of Faraday cylinder and the volume flow rate of liquid.The common shortcoming of latter two method is complex structure, and is unsuitable for on-the-spot use.
CN93229461 relates to a kind of electrostatic testing alarm for oil, it is comprised of sensor and portable type measuring device, insert in oil product transfer pipeline one end of sensor, in order to gather the quantity of electric charge in oil product, the oil product quantity of electric charge that portable type measuring device gathers for detection of sensor just sends warning when the oil product quantity of electric charge surpasses safe charge amount.But this patent is just for reporting to the police.
Existing oil product determining charge density device design is complicated, not portable, and the present invention has solved this problem targetedly.
Summary of the invention
Technical matters to be solved by this invention is complicated, the not portable problem of existing oil product determining charge density device design, and a kind of new portable oil product determining charge density device is provided.This device, for oil product determining charge density, has advantages of simplicity of design, portable.
For addressing the above problem, the technical solution used in the present invention is as follows: a kind of portable oil product determining charge density device, comprise that oil product gathers ball (1), potential measurement sensing head (2), insulating element (3), ground wire (5), High-Voltage Insulation p-wire (4), oil resistant bar (6) and determining charge density instrument (7), wherein oil product collection ball (1) comprises metal segment (8) and sub-conductor plastic protection cover (9), and sub-conductor plastic protection cover (9) is positioned at the outside of metal segment (8); Determining charge density instrument (7) comprises potential measurement parts (10), signal processor (11) and oil product electric density display screen (12); Potential measurement sensing probe (2) one end is positioned at metal segment (8) inside center, and the other end is connected with determining charge density instrument (7) by High-Voltage Insulation p-wire (4) through oil resistant bar (6); Insulating element (3) is positioned between metal segment (8) and potential measurement sensing probe (2); Ground wire (5) makes metal segment ground connection through oil resistant bar (6); Electrostatic potential signal from potential measurement sensing head (2) is delivered to the potential measurement parts (10) in determining charge density instrument (7) by High-Voltage Insulation p-wire (4), after signal processor (11) is processed, by oil product electric density display screen (12), show oil product electric density.
In technique scheme, preferably, described oil product gathers ball (1) and is responsible for gathering oil product, it is a metal segment (8) that metal gathers ball (1) main body, the sub-conductor plastic protection cover (9) of metal segment (8) outer wrapping, metal segment (8) surfaces externally and internally is provided with polished chrome layer or silver coating, and the height of metal segment (8) should be not less than the diameter of 0.75 times when meeting oil product intrusion, and it is 10 that sub-conductor plastic protection cover adopts surface resistivity
7～10
10the sub-conductor material of Ω.
In technique scheme, preferably, described potential measurement sensing probe (2) main body is a metal round rod, and metal round rod is designed to spherical in one end of segment inside, and the spherical center of circle overlaps with the center of circle of metal segment.
In technique scheme, preferably, described insulating element (3) is positioned between metal segment (8) and potential measurement sensing probe (2), guarantees that the insulating resistance value between metal segment (8) and potential measurement sensing probe (2) is greater than 10
14Ω.
In technique scheme, preferably, described ground wire (5) has insulation sheath, and its withstand voltage level is greater than 10000V, and the withstand voltage of High-Voltage Insulation p-wire (4) is 30000～50000V.
In technique scheme, preferably, described oil resistant bar (6) adopts insulativity, high strength oil resisting material, facilitates hand-held.
In technique scheme, preferably, described potential measurement parts are measured the electrostatic potential on potential measurement sensing probe, and described signal processor converts electrostatic potential signal to electric density signal by calculating, and described oil product electric density display screen shows the electric density of oil product in real time.
The present invention can easily measure the electric density of oil product, by put the plastics of sub-conductor plastic material at metal segment peripheral hardware, avoids contacting of metal segment and other metallic objects, it is a kind of portable set, easy operating, safe and reliable, obtained good technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of device of the present invention.
In Fig. 1: 1 is oil product collection ball; 2 is potential measurement sensing head; 3 is insulating element; 4 is High-Voltage Insulation p-wire; 5 is ground wire; 6 is oil resistant bar; 7 is determining charge density instrument; 8 is metal segment; 9 is sub-conductor plastic protection cover; 10 is potential measurement parts; 11 is signal processor; 12 is oil product electric density display screen.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
Device as shown in Figure 1 comprises that oil product gathers ball 1, potential measurement sensing probe 2, insulating element 3, ground wire 5, High-Voltage Insulation p-wire 4, oil resistant bar 6, determining charge density instrument 7, wherein oil product collection ball is divided into again metal segment 8, sub-conductor plastic protection cover 9 two parts, and determining charge density instrument 7 is divided into again potential measurement parts 10, signal processor 11, oil product electric density display screen 12 3 parts.Oil product gathers ball 1 and is responsible for gathering a part of oil product, and potential measurement sensing probe 2 is responsible for gathering the electrostatic potential signal of oil product, and by High-Voltage Insulation p-wire 4, is delivered to determining charge density instrument 7, oil resistant bar 6 handled easilies.
Oil product gathers ball 1 and is responsible for gathering oil product, and it is a metal segment 8 that metal gathers ball main body, the plastics of the sub-conductor material of segment outer wrapping.Metal segment 8, thickness is 2mm, and by ground connection, metal segment 8 surfaces externally and internallies are provided with polished chrome layer or silver coating, and metal segment 8 its diameters can arrange according to test environment, and the diameter of metal segment is 100mm, height is 120mm.
It is 10 that sub-conductor plastic protection cover 9 adopts surface resistivity
8the sub-conductor material of Ω, thickness is 2mm.
Potential measurement sensing probe 2 main bodys are a metal round rod, and metal round rod is designed to spherical in one end of segment inside, and spherical diameter is 2 times of metal round rod diameter, and its center of circle overlaps with the center of circle of metal segment; Described potential measurement sensing probe 2 other ends are connected with determining charge density instrument 2 by High-Voltage Insulation p-wire 4.
Insulating element 3 is positioned at metal and gathers in the middle of ball 1 and potential measurement sensing probe 2, and its effect is to guarantee that the insulating resistance value that metal gathers between ball 1 and potential measurement sensing probe 2 is greater than 10
14Ω.
Ground wire 5 has insulation sheath, and its withstand voltage level is greater than 10000V.The withstand voltage of described High-Voltage Insulation p-wire 4 is 40000V.
Oil resistant bar 6 adopts insulativity, high strength oil resisting material; Described ground wire 5 is connected with ground through oil resistant bar 6; Described High-Voltage Insulation p-wire 4 is connected with determining charge density instrument through oil resistant bar.
The electrostatic potential that potential measurement parts 10 are measured on potential measurement sensing probe, its range is 20000V.
Signal processor 11 converts electrostatic potential signal to electric density signal by calculating.
Oil product electric density display screen 12 shows the electric density of oil product in real time.
[embodiment 2]
According to the condition described in embodiment 1, the diameter of metal segment 8 is 100mm, high 80mm; The material surface resistivity of sub-conductor plastic protection cover 9 is 10
10Ω.Potential measurement sensing probe 2 is used for gathering the current potential of segment circle centre position, and the diameter of its top bead is 8mm.Insulating element 3 is used for guaranteeing the insulation between metal segment 8 and potential measurement sensing probe 2, guarantees the current potential of the reflection segment circle centre position that potential measurement sensing probe 2 can be correct, avoids the oil product in metal segment 8 to invade oil resistant bar 6 simultaneously.The withstand voltage of High-Voltage Insulation p-wire 4 is 50000V.Ground wire 5 is used for guaranteeing that the current potential of metal segment 8 is zero potential.Oil resistant bar 6 assurance oil products are not invaded in oil resistant bar, have higher intensity simultaneously, facilitate electric density collecting work.
[embodiment 3]
According to the condition described in embodiment 1, be that to adopt surface resistivity be 10 for sub-conductor plastics
7the sub-conductor material of Ω.Oil product electric density display screen 12 shows the electric density of oil product in real time.
[embodiment 4]
According to the condition described in embodiment 1, just the diameter of metal segment is 200mm, and height is 160mm.Oil product electric density display screen 12 shows the electric density of oil product in real time.
The portable oil product determining charge density device of this patent, can easily measure the electric density of oil product, has measuring accuracy high, safe and reliable, the advantage of easy operating.
Claims (7)
1. a portable oil product determining charge density device, comprise that oil product gathers ball (1), potential measurement sensing head (2), insulating element (3), ground wire (5), High-Voltage Insulation p-wire (4), oil resistant bar (6) and determining charge density instrument (7), wherein oil product collection ball (1) comprises metal segment (8) and sub-conductor plastic protection cover (9), and sub-conductor plastic protection cover (9) is positioned at the outside of metal segment (8); Determining charge density instrument (7) comprises potential measurement parts (10), signal processor (11) and oil product electric density display screen (12); Potential measurement sensing probe (2) one end is positioned at metal segment (8) inside center, and the other end is connected with determining charge density instrument (7) by High-Voltage Insulation p-wire (4) through oil resistant bar (6); Insulating element (3) is positioned between metal segment (8) and potential measurement sensing probe (2); Ground wire (5) makes metal segment ground connection through oil resistant bar (6); Electrostatic potential signal from potential measurement sensing head (2) is delivered to the potential measurement parts (10) in determining charge density instrument (7) by High-Voltage Insulation p-wire (4), after signal processor (11) is processed, by oil product electric density display screen (12), show oil product electric density.
2. portable oil product determining charge density device according to claim 1, it is characterized in that described oil product gathers ball (1) and is responsible for gathering oil product, it is a metal segment (8) that metal gathers ball (1) main body, the sub-conductor plastic protection cover (9) of metal segment (8) outer wrapping, metal segment (8) surfaces externally and internally is provided with polished chrome layer or silver coating, the height of metal segment (8) should be not less than the diameter of 0.75 times when meeting oil product intrusion, and it is 10 that sub-conductor plastic protection cover adopts surface resistivity
7～10
10the sub-conductor material of Ω.
3. portable oil product determining charge density device according to claim 1, it is characterized in that described potential measurement sensing probe (2) main body is a metal round rod, metal round rod is designed to spherical in one end of segment inside, the spherical center of circle overlaps with the center of circle of metal segment.
4. portable oil product determining charge density device according to claim 1, it is characterized in that described insulating element (3) is positioned between metal segment (8) and potential measurement sensing probe (2), guarantee that the insulating resistance value between metal segment (8) and potential measurement sensing probe (2) is greater than 10
14Ω.
5. portable oil product determining charge density device according to claim 1, is characterized in that described ground wire (5) has insulation sheath, and its withstand voltage level is greater than 10000V, and the withstand voltage of High-Voltage Insulation p-wire (4) is 30000～50000V.
6. portable oil product determining charge density device according to claim 1, is characterized in that described oil resistant bar (6) adopts insulativity, high strength oil resisting material, facilitates hand-held.
7. portable oil product determining charge density device according to claim 1, it is characterized in that the electrostatic potential on described potential measurement parts measurement potential measurement sensing probe, described signal processor converts electrostatic potential signal to electric density signal by calculating, and described oil product electric density display screen shows the electric density of oil product in real time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146631.4A CN104007328B (en) | 2014-04-11 | 2014-04-11 | Portable charge density measurement device for oil product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146631.4A CN104007328B (en) | 2014-04-11 | 2014-04-11 | Portable charge density measurement device for oil product |
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| CN104007328A true CN104007328A (en) | 2014-08-27 |
| CN104007328B CN104007328B (en) | 2017-02-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137209A (en) * | 2015-10-13 | 2015-12-09 | 中国石油化工股份有限公司 | Fire-fighting foam electrostatic electrification measurement method |
| CN105301373A (en) * | 2015-12-02 | 2016-02-03 | 中国电力科学研究院 | Space charge density measuring apparatus based on probe array |
| CN105301371A (en) * | 2015-12-02 | 2016-02-03 | 中国电力科学研究院 | Space charge density measurement device based on Faraday cage method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170530Y (en) * | 1993-10-12 | 1994-06-29 | 中国石油化工总公司安全技术研究所 | Electrostatic testing alarm for oil |
| JP2001255303A (en) * | 2000-03-13 | 2001-09-21 | Kawaguchi Denki Seisakusho:Kk | System and method for testing electrification |
| JP4861780B2 (en) * | 2006-09-11 | 2012-01-25 | 三菱電機株式会社 | Charged potential measuring device |
| CN102928681A (en) * | 2012-11-22 | 2013-02-13 | 哈尔滨理工大学 | Device for measuring oil-flow electrification characteristic of insulating oil |
-
2014
- 2014-04-11 CN CN201410146631.4A patent/CN104007328B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137209A (en) * | 2015-10-13 | 2015-12-09 | 中国石油化工股份有限公司 | Fire-fighting foam electrostatic electrification measurement method |
| CN105301373A (en) * | 2015-12-02 | 2016-02-03 | 中国电力科学研究院 | Space charge density measuring apparatus based on probe array |
| CN105301371A (en) * | 2015-12-02 | 2016-02-03 | 中国电力科学研究院 | Space charge density measurement device based on Faraday cage method |
| CN105301373B (en) * | 2015-12-02 | 2018-11-16 | 中国电力科学研究院 | A kind of space charge density measuring device based on probe array |
| CN105301371B (en) * | 2015-12-02 | 2018-12-11 | 中国电力科学研究院 | A kind of space charge density measuring device based on faraday cup method |
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| CN104007328B (en) | 2017-02-08 |
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Effective date of registration: 20161209 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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