CN109310002A - It is a kind of active with the passive electrostatic charge of oil arrester combined - Google Patents
It is a kind of active with the passive electrostatic charge of oil arrester combined Download PDFInfo
- Publication number
- CN109310002A CN109310002A CN201711133449.5A CN201711133449A CN109310002A CN 109310002 A CN109310002 A CN 109310002A CN 201711133449 A CN201711133449 A CN 201711133449A CN 109310002 A CN109310002 A CN 109310002A
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- oil
- generating device
- voltage generating
- pipeline
- spray point
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/24—Arrangements for measuring quantities of charge
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pipeline Systems (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The present invention provides a kind of active with the passive electrostatic charge of oil arrester combined, mainly solve the problems, such as that electrostatic charge of oil can not be eliminated in thin petroleum pipeline comprising pipeline, connecting flange, spray point, collets, oil product charge density monitor, switch, earthing or grounding means, positive voltage generating device, negative voltage generating device and control device.Electrostatic charge of oil arrester is connected on pipeline by connecting flange；Insulation module ensures that spray point will not be broken down by high-voltage with pipeline enclosure；Oil product charge density monitor is used to monitor the electrostatic charging situation of oil product in pipeline, and monitoring data are uploaded to control module；Control device controls positive voltage generating device and negative voltage generating device output voltage；The connection of switch control positive voltage generating device and negative voltage generating device and earthing or grounding means and spray point；Spray point is connect for a long time with earthing module, and when the data of oil product charge density monitor detection exceed threshold value, electric discharge needle-discharging eliminates charge.
Description
Technical field
The present invention relates to the petroleum pipeline static elimination equipment of the combustible and explosive areas such as petrochemical industry Oil & Gas Storage, in particular to
It is a kind of active with the passive electrostatic charge of oil arrester combined.
Background technique
In oil product transmission process, because oil product conductivity is low, oil transportation excessive velocities, oil product contain the reasons such as impurity, it will lead to
A large amount of electrostatic are generated in oil product transmission process.GB 12158-2006 " preventing the general directive/guide of electrostatic accident " and GB 13348-2009
" liquid petroleum product electrostatic safety regulation " clear stipulaties can install liquid electrostatic arrester for reducing electrostatic in pipe end
Accumulation.But current product pipeline Xelminator is mainly passive Xelminator, keeps spray point quiet by way of induction
Discharge of electricity eliminates electrostatic charge of oil, and is all mounted on larger diameter pipeline.
The method for eliminating the electrostatic in pipeline oil product at present mainly has: (1) metal shell earth leakage electrostatic, this kind of mode
Electrostatic on metal shell can only be guided, the electrostatic in oil product cannot guide, and static elimination needs the regular hour cannot
Meet oil product flow rate requirement, so remaining difficult to avoid the generation for the accident of sparking in this way.(2) Line Static arrester is installed additional.
There is presently no active electrostatic charge of oil arrester is applied on the smaller tubule of pipeline road diameter.Install Line Static arrester additional
Method is commonly used in large-scale oil pipeline, is more prone to produce electrostatic since pipeline is elongated in thin pipeline road, and in pipeline
The oil product flow velocity method that very much not electrostatic is revealed in the suitable metal earthing of casing, while if the large-scale pipeline static elimination equipment of application,
The spray point of setting is easy to puncture pipeline, to cause conduit failure；When in pipeline without oil product or oil product flows in pipeline
Body section is less than pipe diameter, will remain a large amount of oil gas needle-discharging that discharges at this time under both of these case in pipeline and be easy to cause danger
Danger.The case where quantity of electric charge changes greatly in pipeline is not adapted to, and guarantees the safety when quantity of electric charge is smaller, is revealed in time quiet
Electricity.In addition spray point carries out being easy to cause during electrion firing danger, it is therefore desirable to design a kind of active with passive phase
In conjunction with electrostatic charge of oil arrester.
Summary of the invention
The technical problem to be solved in the invention is, eliminates electrostatic in pipeline and avoids what electrion caused to fire danger simultaneously
Danger, active with the passive electrostatic charge of oil arrester combined using one kind in thin pipeline road, technical solution is as follows:
It is a kind of active with the passive electrostatic charge of oil arrester combined, including pipeline, connecting flange, spray point, collets,
Oil product charge density monitor, switch, earthing or grounding means, positive voltage generating device, negative voltage generating device and control device；Institute
Oil product charge density monitor to be stated to be arranged on pipeline, oil product charge density monitor is connected by data line with control device,
Oil product charge density monitor is connected by data line with control device；The control device controls positive voltage generating device and bears
Voltage generation circuit output voltage；Switch control positive voltage generating device and negative voltage generating device and earthing or grounding means and electric discharge
The connection of needle；The multiple spray point is arranged in inner wall of the pipe and symmetrically arranges, and spray point is wrapped in collets and puts
Collets are exposed at electric end, and there are gaps between the discharge end and inner wall of the pipe of spray point；Spray point passes through conducting wire and switching device
Connection.
Preferably, the spray point is uniformly distributed 4 rows by symmetry axis of conduit axis, the spray point in duct orientation
Between spacing it is equal, 4 spray points are set in every arrangement.
It is also preferred that main body of the pipeline as Xelminator, diameter is equal to oil pipe diameter, passes through connection
Flange is serially connected on oil pipeline.
It is also preferred that the duct length is 3~7 times of pipe diameter.
It is also preferred that the collets making material is polytetrafluoroethylene (PTFE).
It is also preferred that the radius of curvature of the electric discharge needle end part is 1000 μm.
Also it is preferred that the switch is threephase switch, side is connected with the conducting wire for connecting spray point, other side difference
Equipped with the switching circuit between positive voltage generating device, negative voltage generating device and earthing or grounding means.
It may further be preferable that the closure of the control device control switch, when oil product charge density monitor monitors oil
Product charge density is less than ± 5 μ C/m3When, earthing or grounding means line switching closure exports electrostatic charge by ground connection；When oil product charge
Measuring density instrument monitors oil product charge density and is greater than+5 μ C/m3When, earthing or grounding means line switching is opened, and connection negative voltage fills
The line switching closure set；When oil product charge density monitor monitoring oil product charge density is greater than -5 μ C/m3When, earthing or grounding means line
Way switch is opened, the line switching closure of connection positive voltage generating device.
It is even furthermore preferable that the positive voltage generating device and negative voltage generating device output voltage size 0~
Between 1500V.
The beneficial effects of the present invention are: the electric discharge needle tip used has lesser radius of curvature, it is easy to ionic discharge, more
Conducive to elimination electrostatic charge of oil；Guarantee that spray point will not be breakdown because of electric discharge with pipeline enclosure using collets, it is ensured that spray point
It plays a role；There are gaps for the bottom of spray point setting pipeline and the discharge end of spray point and inner wall of the pipe, easy by oil product
Submergence, fires danger caused by discharging directly in the pipeline that oil gas retains so as to avoid active oil product arrester spray point；
Detailed description of the invention
Fig. 1 is active electrostatic charge of oil arrester structural schematic diagram；
Fig. 2 is spray point structural schematic diagram；
Fig. 3 is active electrostatic charge of oil arrester structural schematic diagram in improvement project；
Fig. 4 is spray point structural schematic diagram in improvement project；
In figure: 1- pipeline；2- connecting flange；3- spray point；4- collets；5- oil product charge density monitor；6- switch；
7- earthing or grounding means；8- positive voltage generating device；9- negative voltage generating device；10- control device.
Specific embodiment
It is a kind of active with the passive electrostatic charge of oil arrester combined, including pipeline 1, connecting flange 2, spray point 3, insulation
Block 4, oil product charge density monitor 5, switch 6, earthing or grounding means 7, positive voltage generating device 8, negative voltage generating device 9 and control
Device 10 processed.Main body of the pipeline 1 as electrostatic charge of oil arrester, diameter are equal to oil pipe diameter, are concatenated by connecting flange 2
On oil pipeline.Collets 4 wrap up spray point 3, and spray point 3 is arranged on 1 ontology of pipeline, oil product charge density monitor 5
It protrudes into pipeline oil product and measures the charge density of oil product electrification.Spray point 3 is connected by conducting wire with switch 6, and switch is separately connected
Earthing or grounding means 7, positive voltage generating device 8 and negative voltage generating device 9,10 control switch 6 of control device, earthing or grounding means 7, positive electricity
Pressure generating apparatus 8 and negative voltage generating device 9 work.
Oil product charge density monitor 5 is arranged on pipeline, and oil product charge density monitor 5 is filled by data line and control
It sets 10 to be connected, oil product charge density monitor 5 is connected by data line with control device 10；The control device 10 controls positive electricity
9 output voltage of pressure generating apparatus 8 and negative voltage generating device；Switch 6 controls positive voltage generating device 8 and negative voltage generating device
9 and earthing or grounding means 7 and spray point 3 connection；The multiple spray point 3 is arranged in inner wall of the pipe and symmetrically arranges,
Spray point 3 is wrapped in collets 4 discharge end and exposes collets 4, between the discharge end and inner wall of the pipe of spray point 3 there are
Gap；Spray point 3 is connect by conducting wire with 6 device of switch.
Spray point is described in further detail in conjunction with Fig. 1 and Fig. 2, spray point 3 is wrapped in discharge end in collets and reveals
Collets 4 out, 4 making material of collets are polytetrafluoroethylene (PTFE).There are gap, electric discharges for the discharge end and inner wall of the pipe of spray point 3
The radius of curvature of 3 end of needle is 1000 μm.Spray point 3 is arranged along 1 even circumferential of pipeline, by spray point in 1 inner wall shape of pipeline
At appearing in groove, ensure that 3 end of spray point is in always under the liquid level of oil product, though in pipeline without oil product when pipeline
In groove existing for inner wall spray point still can residual fraction oil product to cover 3 end of spray point not only avoid active oil
Product arrester spray point 3 fires danger caused by discharging directly in the pipeline 1 that oil gas retains, also protect spray point 3 not by
Corrosiveness damage.
It is preferred that one of arrangement of spray point is, illustrated in conjunction with arrangement of the Fig. 1 and Fig. 2 to spray point 3,
Wrapped with insulation spray point, collets 4 are arranged between 1 ontology of pipeline and spray point 3, and 4 making material of collets is poly- four
Vinyl fluoride, polytetrafluoroethylene (PTFE) is used to ensure will not be by 20000V high-voltage breakdown between spray point 3 and pipeline 1.Spray point 3 is with pipeline 1
Axis is that symmetry axis is uniformly distributed 4 rows, and spacing is equal between the spray point on 1 direction of pipeline, and 4 spray points are set in every arrangement.
Spray point can also be symmetrically arranged in pipeline surrounding according to duct length.Being arranged symmetrically spray point in 1 surrounding of pipeline can
Facilitate release voltage, is arranged symmetrically in 1 top of pipeline and bottom end.The distance between acusector is equal in duct orientation, along pipeline
The distance between spray point on the direction of section is equal.Determining that 3 size of spray point is designed specifically to diameter through overtesting is 2mm,
Length is 10mm, and the discharge effect of spray point is best under the size condition.
Voltage generation circuit power conditions are described in further detail, positive voltage generating device 8 and negative voltage occur
9 output voltage size of device is less than 1500V.The voltage of the exportable positive 0-1500V of positive voltage generating device 8, adjustable section.It is negative
The voltage of the exportable negative 0-1500V of voltage generation circuit 9, adjustable section.Control device 10 receives the monitoring of oil product charge density
The measurement data of instrument 5, when detection numerical value is greater than 5 μ C/m3When, control device 10 controls positive voltage generating device 8 or negative electricity pressure
Generating apparatus 9 discharges.
Control device control situation is described in further detail, the control device course of work is specifically: when oil product electricity
Lotus measuring density instrument 5 monitors the charge density in pipeline in+5~20 μ C/m3Between when, negative voltage generating device 9 exports electricity
It is pressed between -1~-1500V and adjusts, specifically+5 μ C/m3Corresponding -10v accordingly increases the two as charge density increases voltage
Linear relation with increase, control device 10 control negative voltage generating device 9 and close, and electric power output voltage is with charge density constant gradient
It adjusts.When oil product charge density monitor monitors 5 to the charge density in pipeline 1 in -5~-20 μ C/m3Between when, control dress
The unlatching of 10 control positive voltage generating devices 8 is set, 8 output voltage of positive voltage generating device is adjusted between+1~+1500V, specifically
It is -5 μ C/m3Corresponding+10v accordingly increases the linear relation with increase of the two as charge density increases voltage, and control device 10 is controlled
Positive voltage generating device 8 processed is closed, and electric power output voltage is to adjust with charge density constant gradient.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (9)
1. a kind of active with the passive electrostatic charge of oil arrester combined, which is characterized in that including pipeline, connecting flange, electric discharge
Needle, collets, oil product charge density monitor, switch, earthing or grounding means, positive voltage generating device, negative voltage generating device and
Control device；
The oil product charge density monitor is arranged on pipeline, and oil product charge density monitor passes through data line and control device
It is connected, oil product charge density monitor is connected by data line with control device；
The output voltage of control device control the positive voltage generating device and negative voltage generating device；Switch control positive electricity pressure
The connection of generating apparatus and negative voltage generating device and earthing or grounding means and spray point；
The multiple spray point is arranged in inner wall of the pipe and symmetrically arranges, and spray point is wrapped in discharge end in collets and reveals
Collets out, there are gaps between the discharge end and inner wall of the pipe of spray point；Spray point is connect by conducting wire with switching device.
2. one kind according to claim 1 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
Spray point is uniformly distributed 4 rows by symmetry axis of conduit axis, and spacing is equal between the spray point in duct orientation, and every arrangement is set
4 spray points.
3. one kind according to claim 1 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
Main body of the pipeline as Xelminator, diameter are equal to oil pipe diameter, are serially connected on oil pipeline by connecting flange.
4. a kind of pipeline oil product Xelminator of intrinsic safety type according to claim 1 or 2, which is characterized in that the pipe
Road length is 3~7 times of pipe diameter.
5. one kind according to claim 1 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
Collets making material is polytetrafluoroethylene (PTFE).
6. one kind according to claim 1 or 2 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that
The radius of curvature of the electric discharge needle end part is 1000 μm.
7. one kind according to claim 1 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
Switch is threephase switch, and side is connected with the conducting wire for connecting spray point, and the other side is respectively equipped with positive voltage generating device, negative voltage
Switching circuit between generating device and earthing or grounding means.
8. one kind according to claim 7 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
The closure of control device control switch, when oil product charge density monitor monitoring oil product charge density is less than ± 5 μ C/m3When, it connects
Device line switching closure in ground exports electrostatic charge by ground connection；When oil product charge density monitor monitors oil product charge density
Greater than+5 μ C/m3When, earthing or grounding means line switching is opened, the line switching closure of connection negative voltage generating device；When oil product electricity
Lotus measuring density instrument monitors oil product charge density and is greater than -5 μ C/m3When, earthing or grounding means line switching is opened, and positive voltage is connected
The line switching of device is closed.
9. one kind according to claim 8 is active with the passive electrostatic charge of oil arrester combined, which is characterized in that described
Positive voltage generating device and negative voltage generating device output voltage size are between 0~1500V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133449.5A CN109310002B (en) | 2017-11-16 | 2017-11-16 | Oil static eliminator combining active and passive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133449.5A CN109310002B (en) | 2017-11-16 | 2017-11-16 | Oil static eliminator combining active and passive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109310002A true CN109310002A (en) | 2019-02-05 |
| CN109310002B CN109310002B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711133449.5A Active CN109310002B (en) | 2017-11-16 | 2017-11-16 | Oil static eliminator combining active and passive |
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