CN208077038U - Stray current eliminating device - Google Patents
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- CN208077038U CN208077038U CN201820009989.6U CN201820009989U CN208077038U CN 208077038 U CN208077038 U CN 208077038U CN 201820009989 U CN201820009989 U CN 201820009989U CN 208077038 U CN208077038 U CN 208077038U
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Abstract
The utility model discloses a stray current eliminating device, belong to oil gas warehousing and transportation field, this stray current eliminating device can include control circuit and test circuit, this control circuit includes control module and the starting switch who is connected with control module, this test circuit includes test switch and test interface, this test switch can be connected with test interface and control module respectively, and this control module can be when starting switch closing, control test switch is closed, thereby realize detecting stray current's function, and this control module can be when starting switch disconnection, control test switch disconnection, thereby realize eliminating stray current's function. The utility model provides a stray current remove device can control test switch through control module and eliminate the interference fast, and efficiency is higher.
Description
Technical field
The utility model is related to Oil & Gas Storage field, more particularly to a kind of stray electrical current cancellation element.
Background technology
The electrical equipment of tube circumference electric current caused by the electric field of the earth formation flowing due to electric leakage is properly termed as miscellaneous
Electric current is dissipated, which can flow in the pipeline for being embedded in underground, and the position of wherein stray electrical current flow ipe is known as
Cathode, the position for flowing out pipeline are known as anode.Anodic oxidation, i.e. stray current corrosion are will produce at the anode of pipeline, to pipeline
Cause serious harm.
In the related technology, metal coupons can be connect by conducting wire with pipeline, when metal coupons perfact polarization becomes the moon
When pole, the connection of the metal coupons and pipeline can be disconnected, is managed at this point, stray electrical current can not be flowed by the metal coupons again
Road avoids pipeline by stray current corrosion so as to eliminate interference of the stray electrical current to pipeline.
But since metal coupons perfact polarization generally requires twenty four hours, the time of cost is longer, this uses metal
The less efficient of the method for stray electrical current is eliminated in test block.
Utility model content
The utility model provides a kind of stray electrical current cancellation element, can solve to disappear using metal coupons in the related technology
Except the less efficient problem of the method for stray electrical current, the technical solution is as follows：
In a first aspect, providing a kind of stray electrical current cancellation element, the stray electrical current cancellation element includes：Control circuit
And test circuit；
The control circuit includes control module and the starting switch that is connect with the control module；
The test circuit includes test switch and test interface, the test switch respectively with the test interface and institute
State control module connection；
Wherein, for being connect with pipeline, the control module is used for when the starting switch is closed the test interface,
It controls the test switch to be closed, and when the starting switch disconnects, controls the test switch and disconnect.
Optionally, the control module includes：Communication submodule and the display submodule being connect with the communication submodule
Block；
The test circuit further includes：Communication module, the communication module are connected with test switch；
Wherein, the communication submodule is connect with the communication module, test switch respectively with the communication module
It is connected with the display sub-module.
Optionally, one end of the starting switch is connect with the first power end, and the display sub-module includes：Show core
Piece, transistor and resistance；
First pin of the display chip is connect with second source end, the second pin of the display chip and the survey
Runin connection connects, and the third pin of the display chip is connect with one end of the resistance, the 4th pin of the display chip
It is connect with third power end；
The other end of the resistance is connect with the grid of the transistor；
First pole of the transistor is connect with the other end of the starting switch, the second pole of the transistor and third
Power end connects.
Optionally, the communication submodule includes：First communication chip；
First pin of first communication chip is connect with first power end, and the second of first communication chip
Pin is connect with the second source end, and the third pin and the 4th pin of first communication chip are electric with the third respectively
Source connects.
Optionally, the communication module includes the second communication chip and third communication chip；
First pin of second communication chip is connect with first power end, and the second of second communication chip
Pin is connect with the 4th power end, and the third pin and the 4th pin of second communication chip are respectively at the third power end
Connection；
First pin of the third communication chip is connect with the 4th power end, and the second of the third communication chip
Pin is connect with the second source end, and the third pin and the 4th pin of the third communication chip are electric with the third respectively
Source connects.
Optionally, the test circuit further includes protection chip, and the test switch includes：First switch group and second is opened
Pass group, the first switch group and the second switch group respectively include multiple switch；
Wherein, the first switch group respectively with first power end, the third power end, protection chip, test
Interface and display sub-module connection；
The second switch group is connect with first power end, the third power end and the protection chip respectively.
Optionally, the test interface includes first interface and second interface；The first switch group includes：First opens
It closes, second switch and third switch；
The first end of the first switch is connect with first power end, the second end and first segment of the first switch
Point connection, the third end of the first switch connect with the first interface, the 4th end of the first switch respectively with it is described
The second pin connection of second interface and the protection chip；
The first end of the second switch is connect with the first node, the second end of the second switch and the display
Submodule connects；
The first end of the third switch is connect with the first interface, the second end and described first of the third switch
Node connects, and the third end of the third switch is connect with the first pin of the protection chip.
Optionally, the second switch group includes：4th switch, the 5th switch, the 6th switch and the 7th switch；
The first end and second end of 4th switch is connect with first power end, the third end of the 4th switch
It is connect with second node；
The first end of 5th switch is connect with the second node, the second end and the described 6th of the 5th switch
The first end of switch connects；
The second end of 6th switch is connect with the second pin of the protection chip, the third end of the 6th switch
It is connect with the first end of the 7th switch；
The second end of 7th switch is connect with the second node, the third end of the 7th switch and the protection
First pin of chip connects.
Optionally, the first switch and third switch are double-point double-throw switch；
The second switch is single-pole single-throw switch (SPST).
Optionally, the 4th switch and the 6th switch are double-point double-throw switch；
5th switch is that the 7th switch is single-pole double-throw switch (SPDT).
The advantageous effect that technical solution provided by the utility model is brought is：
In conclusion the stray electrical current cancellation element that the utility model embodiment provides, including control circuit and test electricity
Road, the control circuit include control module and starting switch, which includes test switch and test interface, when opening
When dynamic switch is closed, which can control test switch and be closed, which can be introduced to the test at this time
In circuit, when starting switch disconnects, which can control test switch and disconnect, to avoid the stray electrical current again
It is flowed into pipeline, realizes that the elimination interfered stray electrical current, the stray electrical current cancellation element are controlled by control circuit and tested
The closure of switch, may be implemented the quick elimination of stray electrical current interference, and efficiency is higher.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram for stray electrical current cancellation element that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for another stray electrical current cancellation element that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram for another stray electrical current cancellation element that the utility model embodiment provides；
Fig. 4 is the structural schematic diagram for another stray electrical current cancellation element that the utility model embodiment provides.
Specific implementation mode
In order to keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality
Novel embodiment is described in further detail.
Fig. 1 is a kind of structural schematic diagram for stray electrical current cancellation element that the utility model embodiment provides, such as Fig. 1 institutes
Show, which may include：Control circuit 10 and test circuit 20.
Wherein, which may include control module 101 and the starting switch that is connect with control module 101
K1.The test circuit 20 may include test switch K2 and test interface J, test switch K2 can respectively with test interface J and
Control module 101 connects.
Wherein, test interface J can connect (not shown in figure 1) with pipeline, and control module 101 can be in starting switch
When K1 is closed, control test switch K2 is closed.For example, test switch K2 can be relay switch, which can
Think the relay in test switch K2, can be that the relay charges, to control the test when starting switch K1 is closed
Switch K2 is closed；When starting switch K1 is disconnected, test switch K2 can be controlled and disconnected.
It, can should when eliminating stray electrical current using the stray electrical current cancellation element in the utility model embodiment
Stray electrical current cancellation element is connect by test interface J with pipeline.Staff can control the closure of starting switch K1
And disconnection.When starting switch K1 is closed, which can control test switch K2 and be closed so that in pipeline
Stray electrical current flows into the test circuit 20, and the control circuit 10 can detect the voltage of the pipeline at this time.When the startup is opened
When closing K1 disconnections, which can control test switch K2 and disconnect, can be to avoid spuious in the test circuit 20
Electric current flows into pipeline again, at this point, the stray electrical current cancellation element can eliminate interference of the stray electrical current to the pipeline, it is real
Now to the protection of pipeline.
In conclusion the stray electrical current cancellation element that the utility model embodiment provides, including control circuit and test electricity
Road, the control circuit include control module and starting switch, which includes test switch and test interface, when opening
When dynamic switch is closed, which can control test switch and be closed, which can be introduced to the test at this time
In circuit, when starting switch disconnects, which can control test switch and disconnect, to avoid the stray electrical current again
It is flowed into pipeline, realizes that the elimination interfered stray electrical current, the stray electrical current cancellation element are controlled by control circuit and tested
The closure of switch, may be implemented the quick elimination of stray electrical current interference, and efficiency is higher.
Fig. 2 is the structural schematic diagram for another stray electrical current cancellation element that the utility model embodiment provides, such as Fig. 2 institutes
Show, which may include the display sub-module for communicating submodule 1011 and being connect with the communication submodule 1011
1012.The test circuit 20 can also include：Communication module 201, the communication module 201 can be connect with test switch K2, should
Communication submodule 1011 can connect with communication module 201, test switch K2 can respectively with the communication module 201 and this
Display sub-module 1012 connects.
Optionally, the communication submodule 1011 and communication module 201 can be bluetooth communication or Wireless Fidelity
(WIreless-FIdelity；WI-FI) communication module, the communication submodule 1011 can when starting switch K1 is closed, to
The communication module 201 sends close command, which can control test switch K2 and close according to the close command
It closes, at this point, the test circuit 20 can be formed into a loop between pipeline, which can flow into the test circuit；
When starting switch K1 is disconnected, which can send open command, the communication mould to the communication module 201
Block 201 can control test switch K2 and disconnect, at this point, the stray electrical current can not flow into the pipe again according to the open command
In road, to realize the elimination to stray electrical current, the protection to pipeline is realized.
Fig. 3 is the structural schematic diagram for another stray electrical current cancellation element 00 that the utility model embodiment provides, such as Fig. 3
Shown, one end of starting switch K1 can be connect with the first power end VCC, which may include：Show core
Piece P1, transistor M and resistance R.
The first pin of display chip P1 can be connect with second source end V1, and the second pin of display chip P1 can
To switch connection (not shown) with test, the third pin of display chip P1 can be connect with one end of resistance R, this is aobvious
Show that the 4th pin of chip P1 can be connect with third power end, which can be the electricity with stable low-voltage
Source that is to say that the 4th pin of display chip P1 can be direct as shown in figure 3, the third power end can be ground terminal GND
Ground connection.The other end of resistance R can be connect with the grid of transistor M, and the first of transistor M extremely can be with starting switch
The other end of K1 connects, and the second of transistor M can extremely connect with third power end GND.Transistor M can be that N-type is brilliant
Body pipe or P-type transistor, optionally, transistor M can be the N-type transistors of model 2N3904.The resistance value of resistance R
Can be 10 kilo-ohms (K Ω).
It should be noted that in the utility model embodiment, which can also include display
Screen, display chip P1 can control the voltage value that the display screen shows the pipeline detected.
Further, which may include：First communication chip P2.
As shown in figure 3, the first pin of first communication chip P2 can be connect with the first power end VCC, this is first logical
The second pin of letter chip P2 is connect with second source end V1, and the third pin and the 4th pin of first communication chip P2 can be with
It is connect respectively with third power end GND.
Optionally, as shown in figure 3, the communication module 201 may include the second communication chip P3 and third communication chip P4.
Wherein, the first pin of second communication chip P3 can be connect with the first power end VCC, second communication chip
The second pin of P3 is connect with the 4th power end V2, and the third pin and the 4th pin of second communication chip P3 can be respectively at
The GND connections of third power end；The first pin of third communication chip P4 can be connect with the 4th power end V2, the third communication
The second pin of chip P4 can be connect with second source end V1, and the third pin and the 4th pin of third communication chip P4 can
To be connect respectively with third power end GND.First power end VCC, second source end V1, third power end GND and the 4th
Power end V2 can provide power for the second communication chip P3 and third communication chip P4, to drive second communication chip
P3 and third communication chip P4 normal works.
Wherein, first power end VCC can provide the voltage of 12 volts (V), and second source end V1 can be provided
The voltage of 3.3V, the third power end can be ground terminal GND, and the 4th power end V4 can provide the voltage of 9V.
Further, as shown in figure 3, the test circuit can also include protection chip P5.Optionally, test switch can
To include：First switch group K21 and second switch group K22, the first switch group K21 and second switch group K22 can be wrapped respectively
Include multiple switch.
Wherein, as shown in figure 3, first switch group K21 can respectively with the first power end VCC, third power end GND,
Chip P5, test interface J and display sub-module 1012 is protected to connect.Second switch group K21 can respectively with the first power supply
End VCC, third power end GND are connected with protection chip P5.
Fig. 4 is the structural schematic diagram for another stray electrical current cancellation element 00 that the utility model embodiment provides, such as Fig. 4
Shown, test interface J may include first interface J1 and second interface J2.First switch group K21 may include：First opens
Close K211, second switch K212 and third switch K213.
Wherein, the first end of first switch K211 can be connect with the first power end VCC, and the second of first switch K211
End can be connect with first node D1, and the third end of first switch K211 can be connect with first interface J1, the first switch
The 4th end of K211 can be connected with second interface J2, and the second pin of protection chip P5 respectively.
The first end of second switch K212 can be connect with first node D1, and the second end of second switch K212 can be with
It is connect with display sub-module 1012.It that is to say, second switch K21 can pass through the first display chip P1 and the display submodule
Block 1012 connects.
The first end of third switch K213 can be connect with first interface J1, and the second end of third switch K213 can be with
It is connect with first node D1, the third end of third switch K213 can be connect with the first pin of protection chip P5.
In the utility model embodiment, the stray electrical current in eliminating pipeline using the stray electrical current cancellation element 00
When, first interface J1 can be connect with ground terminal GND, and second interface J2 can be connect with pipeline, so that the test is electric
Road 20 can be formed into a loop between pipeline, and the stray electrical current in the pipeline is introduced in the test circuit 20.Work as control
When module control test switch is all off, it can be flowed into pipeline again to avoid the stray electrical current in test circuit, to real
Now to the elimination of stray electrical current interference.
Optionally, first switch K211 and third switch K213 can be double-point double-throw switch, second switch K212
It can be single-pole single-throw switch (SPST)；Alternatively, first switch K211 to third switch K213 can be double-point double-throw switch, and or
Person, first switch K211 to third switch K213 can be single-pole single-throw switch (SPST), and the utility model embodiment does not do this
It limits.
Further, as indicated at 4, which may include：4th switch K224, the 5th switch K225, the 6th
Switch K226 and the 7th switch K227.
Wherein, the first end and second end of the 4th switch K224 can be connect with the first power end VCC, the 4th switch
The third end of K224 can be connect with second node D2.
The first end of 5th switch K225 can be connect with second node D2, and the second end of the 5th switch K225 can be with
It is connect with the first end of the 6th switch K226.
The second end of 6th switch K226 can be connect with the second pin of protection chip P5, the 6th switch K226's
Third end can be connect with the first end of the 7th switch K227.
The second end of 7th switch K227 can be connect with second node D2, and the third end of the 7th switch K227 can be with
It is connect with the first pin of protection chip P5.
Correspondingly, the first switch group is connect by the protection chip P5 with the second switch group, to constitute test electricity
The test switch K2 that road includes.
In the utility model embodiment, protection chip P5 can be protective tube (i.e. fuse), as test switch K2
When closure, if the electric current for flowing through the test circuit 20 occurs abnormal, protection chip P5 can be fused with itself and cut off electric current, from
And protect the safe operation of the test circuit 20.
Optionally, the 4th switch K224 and the 6th switch K226 can be double-point double-throw switch, the 5th switch
K225 and the 7th switch K227 can be single-pole double-throw switch (SPDT), alternatively, the 4th switch K224 to the 7th switch K227 can be with
It is double-point double-throw switch, or, the 4th switch K224 to the 7th switch K227 can be single-pole double-throw switch (SPDT), this reality
This is not limited with new embodiment.
Optionally, all switches provided in the utility model embodiment can be relay switch, when there is electric current stream
When entering relay, relay can control its corresponding switch and be closed, the closure of relay control switch or the tool of disconnection
Body mode can refer to the relevant technologies, and the utility model embodiment does not repeat this.
In the stray electrical current during the stray electrical current cancellation element 00 provided using the utility model embodiment eliminates pipeline,
First first interface J1 can be connect with ground terminal, and second interface J2 is connect with pipeline, later, staff can will start
Switch K1 is closed, and communication submodule 1011 can send enabled instruction to the communication module 201, at this point, the communication module 201 can
Be closed at controlling first switch group that test switch K2 includes and second switch group so that the test circuit 20 with
It being formed into a loop between the pipeline, the stray electrical current in the pipeline can flow into the test circuit 20, meanwhile, display
Module 1012 can show the voltage value in the pipeline detected；It, should when staff again disconnects starting switch K1
Communication submodule 1011 in control circuit 10 can send shutdown instruction to the communication module 201 again, at this point, the communication module
201 can control the first switch group that test switch K2 includes and second switch group simultaneously switches off, so as to avoid this
Stray electrical current in test circuit 20 flows into pipeline again, at this point, the stray electrical current cancellation element 00 can eliminate it is spuious
The protection to pipeline is realized in interference of the electric current to the pipeline.
In conclusion the stray electrical current cancellation element that the utility model embodiment provides, including control circuit and test electricity
Road, the control circuit include control module and starting switch, which includes test switch and test interface, the control
Circuit processed can control test switch and be closed, which can be introduced to the survey at this time when starting switch is closed
It tries in circuit, when starting switch disconnects, control circuit can control test switch and disconnect, to avoid the stray electrical current again
It is flowed into pipeline, to realize that the elimination interfered stray electrical current, the stray electrical current cancellation element are controlled by control circuit
The closure for testing switch, may be implemented the quick elimination of stray electrical current interference, and efficiency is higher.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to the utility model
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these changes
Type, purposes or adaptive change follow the general principle of the utility model and include the undocumented this technology of the utility model
Common knowledge in field or conventional techniques.The description and examples are only to be considered as illustrative, the utility model it is true
Positive scope and spirit are pointed out by claim.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (10)
1. a kind of stray electrical current cancellation element, which is characterized in that the stray electrical current cancellation element includes：Control circuit and test
Circuit；
The control circuit includes control module and the starting switch that is connect with the control module；
The test circuit includes test switch and test interface, the test switch respectively with the test interface and the control
Molding block connects；
Wherein, for being connect with pipeline, the control module is used for when the starting switch is closed the test interface, control
The test switch is closed, and when the starting switch disconnects, and is controlled the test switch and is disconnected.
2. the apparatus according to claim 1, which is characterized in that the control module includes：Communicate submodule and with institute
State the display sub-module of communication submodule connection；
The test circuit further includes：Communication module, the communication module are connected with test switch；
Wherein, the communication submodule is connect with the communication module, test switch respectively with the communication module and institute
State display sub-module connection.
3. the apparatus of claim 2, which is characterized in that one end of the starting switch is connect with the first power end,
The display sub-module includes：Display chip, transistor and resistance；
First pin of the display chip is connect with second source end, and the second pin of the display chip is opened with the test
Connection connects, and the third pin of the display chip is connect with one end of the resistance, the 4th pin of the display chip and
Three power ends connect；
The other end of the resistance is connect with the grid of the transistor；
First pole of the transistor is connect with the other end of the starting switch, the second pole and the third power supply of the transistor
End connection.
4. the apparatus of claim 2, which is characterized in that the communication submodule includes：First communication chip；
First pin of first communication chip is connect with the first power end, the second pin of first communication chip and the
Two power ends connect, and the third pin and the 4th pin of first communication chip are connect with third power end respectively.
5. the apparatus of claim 2, which is characterized in that the communication module includes that the second communication chip and third are logical
Believe chip；
First pin of second communication chip is connect with the first power end, the second pin of second communication chip and the
Four power ends connect, and the third pin and the 4th pin of second communication chip are connected respectively at third power end；
First pin of the third communication chip is connect with the 4th power end, the second pin of the third communication chip
It is connect with second source end, the third pin and the 4th pin of the third communication chip connect with the third power end respectively
It connects.
6. the apparatus of claim 2, which is characterized in that the test circuit further includes protection chip, the test
Switch includes：First switch group and second switch group, the first switch group and the second switch group respectively include multiple open
It closes；
Wherein, the first switch group respectively with the first power end, third power end, protection chip, test interface and described
Display sub-module connects；
The second switch group is connect with first power end, the third power end and the protection chip respectively.
7. device according to claim 6, which is characterized in that the test interface includes first interface and second interface；
The first switch group includes：First switch, second switch and third switch；
The first end of the first switch is connect with first power end, and second end and the first node of the first switch connect
It connects, the third end of the first switch is connect with the first interface, and the 4th end of the first switch is respectively with described second
The second pin connection of interface and the protection chip；
The first end of the second switch is connect with the first node, the second end of the second switch and the display submodule
Block connects；
The first end of the third switch is connect with the first interface, the second end of the third switch and the first node
Connection, the third end of the third switch are connect with the first pin of the protection chip.
8. device according to claim 6, which is characterized in that the second switch group includes：4th switch, the 5th open
It closes, the 6th switch and the 7th switchs；
The first end and second end of 4th switch connect with first power end, the described 4th third end switched and the
Two nodes connect；
The first end of 5th switch is connect with the second node, and the second end of the 5th switch is switched with the described 6th
First end connection；
The second end of 6th switch is connect with the second pin of the protection chip, the third end of the 6th switch and institute
State the first end connection of the 7th switch；
The second end of 7th switch is connect with the second node, the third end of the 7th switch and the protection chip
The first pin connection.
9. device according to claim 7, which is characterized in that
The first switch and third switch are double-point double-throw switch；
The second switch is single-pole single-throw switch (SPST).
10. device according to claim 8, which is characterized in that
4th switch and the 6th switch are double-point double-throw switch；
5th switch is that the 7th switch is single-pole double-throw switch (SPDT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820009989.6U CN208077038U (en) | 2018-01-03 | 2018-01-03 | Stray current eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820009989.6U CN208077038U (en) | 2018-01-03 | 2018-01-03 | Stray current eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208077038U true CN208077038U (en) | 2018-11-09 |
Family
ID=64034847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820009989.6U Active CN208077038U (en) | 2018-01-03 | 2018-01-03 | Stray current eliminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208077038U (en) |
-
2018
- 2018-01-03 CN CN201820009989.6U patent/CN208077038U/en active Active
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