CN214669278U - Device for detecting electrical parameters of steel rail backflow system - Google Patents
Device for detecting electrical parameters of steel rail backflow system Download PDFInfo
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- CN214669278U CN214669278U CN202120617655.9U CN202120617655U CN214669278U CN 214669278 U CN214669278 U CN 214669278U CN 202120617655 U CN202120617655 U CN 202120617655U CN 214669278 U CN214669278 U CN 214669278U
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Abstract
The utility model discloses a device for detecting electrical parameters of a steel rail backflow system, in particular to the field of rail traffic devices, which comprises a control device CONS and a detection device S, wherein the control device CONS is connected with the connecting end of the detection device S, the output end of the detection device S of a steel rail longitudinal resistance detection module is connected with the input end of a steel rail ground transition resistance detection module, the input end of the control device CONS in the steel rail ground transition resistance detection module is fixedly connected with a control device CONA and a control device CONB, the connecting end of the control device CONA is fixedly connected with a detection device A, the connecting end of the control device CONB is fixedly connected with a detection device B, the utility model controls the detection device S, the control device CONA to control the detection device A and the control device CONB to collect and store signals, the collected signals are processed by the control device CONS to output results, the operation is simplified, and the cost is saved.
Description
Technical Field
The utility model relates to a rail transit technical field, more specifically say, the utility model relates to a device for rail return system electrical parameter detects.
Background
Domestic direct current traction power supply system mainly adopts 750V or 1500V power supply, and the train passes through the pantograph and is got the electricity by the contact net, and the rail backward flow, although the rail passes through fastener insulation and installs on concrete roadbed, owing to receive factor limitations such as operation environment, technical condition, often can't accomplish complete insulation between rail and the roadbed structure, the rail always leaks partial current to ground, forms stray current. In the normal running process of a train, traction current can reach thousands of amperes, because the steel rail has impedance and is influenced by stray current, the potential problem of the steel rail inevitably exists between the steel rail and the ground, and the potential of the steel rail is abnormally increased in the current domestic subway operation, so that the operation is seriously influenced.
The rail longitudinal resistance is an important index for evaluating whether backflow is smooth, and is a direct factor influencing the potential of the rail, the transition resistance between the rail and the ground directly represents the quality of the insulation condition, influences the size of stray current, the electrical parameter detection form of the rail backflow system in the prior art is mostly offline detection, but more devices are required to be matched, the operation is complex, the device cost is higher, the engineering is inconvenient to implement, and therefore the measurement device is necessarily improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects of the prior art, the utility model provides a device for detecting the electrical parameters of a steel rail return system, the technical problem to be solved by the invention is that: the electric parameter detection form of the steel rail backflow system in the prior art is mostly offline detection, but more devices need to be matched, the operation is complex, the cost of the devices is high, and the engineering implementation is inconvenient.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device for rail return-flow system electrical parameter detects, includes rail longitudinal resistance detection module and rail ground transition resistance detection module, rail longitudinal resistance detection module and rail ground transition resistance detection module all include controlling means CONS and detection device S, controlling means CONS is connected with detection device S 'S link, rail longitudinal resistance detection module' S detection device S 'S output is connected with rail ground transition resistance detection module' S input, controlling means CONS input end fixedly connected with controlling means CONA and controlling means CONB among the rail ground transition resistance detection module, controlling means CONA connecting end fixedly connected with detecting means A, controlling means CONB connecting end fixedly connected with detecting means B.
In a preferred embodiment, the detection means S comprise a voltage detection unit UTS and a current detection unit CTS.
In a preferred embodiment, a CONS communication interface is disposed on one side of the front surface of the detection device S, a mV-level connection terminal of a detection device voltage detection unit and a mV-level connection terminal of a detection device voltage detection unit are disposed on the other side of the front surface of the detection device S, a power supply P interface and a detection device switch are disposed on one side of the rear surface, and a current detection unit connection terminal is disposed on the other side of the rear surface.
In a preferred embodiment, the detection device a comprises a voltage detection unit UTA and a current detection unit CTA.
In a preferred embodiment, a CONA communication interface is provided on the front surface side of the detection device a.
In a preferred embodiment, the detection means B comprises a voltage detection unit UTB and a current detection unit CTB.
In a preferred embodiment, a CONB communication interface is provided on the front surface side of the detection device B.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a be equipped with detection device S, controlling means CONS control detection device S gathers voltage, electric current to save, handle data, output result.
2. The utility model discloses a be equipped with detection device S, detection device A, detection device B, controlling means CONS, controlling means CONA, controlling means CONB and power P, controlling means CONS control detection device S gathers voltage, electric current, and controlling means CONA control detection device A gathers voltage, and controlling means CONB control detection device B gathers voltage to the storage.
3. The utility model discloses a be equipped with controlling means CONS for receive the data of controlling means CONA and controlling means CONB storage, and handle, output result.
Drawings
Fig. 1 is a schematic control flow diagram of the present invention.
Fig. 2 is a schematic diagram of the longitudinal resistance test of the steel rail of the utility model.
Fig. 3 is a schematic diagram of the testing of the transition resistance of the steel rail to the ground according to the present invention.
Fig. 4 is a schematic diagram of the opening of the detection device a of the present invention.
Fig. 5 is a schematic diagram of the opening of the detecting device B of the present invention.
Fig. 6 is a schematic diagram of the opening of the detecting device S of the present invention.
The reference signs are: 1. a CONA communication interface; 2. a mV gear wiring terminal of a voltage detection unit of the detection device; 3. a V-gear wiring terminal of a voltage detection unit of the detection device; 4. a detection device switch; 5. a power supply P interface; 6. a CONB communication interface; 7. a CONS communication interface; 8. a current detection unit connection terminal; 9. a control device CONS; 10. a detection device S; 11. a control device CONA; 12. a detection device A; 13. a detection device B; 14. and a control device CONB.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawing 2 in the specification, the device for detecting the electrical parameters of the steel rail return system in the embodiment comprises a detection device S10, a control device CONS9 and a power supply P, wherein the detection device S10 comprises a voltage detection unit UTS and a current detection unit CTS, a CONS communication interface 7 is arranged on one side of the front surface of the detection device S10, a mV-level connection terminal 2 and a V-level connection terminal 3 of a detection device voltage detection unit are arranged on the other side of the front surface of the detection device S10, a power supply P interface 5 and a detection device switch 4 are arranged on one side of the rear surface, and a connection terminal 8 of the current detection unit is arranged on the other side of the rear surface.
Further, mV-level wiring terminal 2 of the detection device voltage detection unit is mV-level wiring terminal of the detection device voltage detection unit, V-level wiring terminal 3 of the detection device voltage detection unit is V-level wiring terminal of the detection device voltage detection unit, and connection terminal 8 of the current detection unit is connection terminal of the current detection unit.
The implementation scenario is specifically as follows:
the method comprises the steps that steel rail longitudinal resistance measurement wiring is arranged according to a steel rail longitudinal resistance test principle diagram, after the longitudinal resistance measurement wiring is finished, a control device CONS9 controls a current detection unit CTS of a detection device S10 to collect current source injection current and store the current, a control device CONS9 controls a mV gear of a UTS voltage detection unit of the detection device S10 to collect steel rail longitudinal voltage drop of the length of a left steel rail LA of the current source and store the steel rail longitudinal voltage drop, the control device CONS9 controls a mV gear of a UTS voltage detection unit of the detection device S10 to collect steel rail longitudinal voltage drop of the length of a right steel rail LB of the current source and store the steel rail longitudinal voltage drop, and after the test is finished, the control device CONS9 processes stored data and outputs a steel rail longitudinal resistance value.
Before a steel rail ground resistance test is carried out, firstly, a measuring section is determined, a detection device S10 and a control device CONS9 are located at the middle point of the measuring section, a detection device A12 and a control device CONA11 are located at the end A of the measuring section, a detection device B13 and a control device CONB14 are located at the end B of the measuring section, and after the steel rail longitudinal resistance detection is completed, steel rail ground transition resistance detection is carried out.
Referring to the attached fig. 3 in the specification, the device for detecting the electrical parameters of the steel rail return system in the embodiment includes a detection device S10, a detection device a12, a detection device B13, a control device CONS9, a control device CONA11, a control device CONB14 and a power supply P, the detection device a12 includes a voltage detection unit UTA and a current detection unit CTA, and the detection device B13 includes a voltage detection unit UTB and a current detection unit CTB.
Further, CONA communication interface 1 is provided on the front surface side of detection device a 12.
Further, a CONB communication interface 6 is provided on the front surface side of the detection device B13.
Further, on/off is the current source on/current source off flag, UREA is the rail-to-ground voltage at sensing device a12, UREB is the rail-to-ground voltage at sensing device B13, and URES is the rail-to-ground voltage at sensing device S10.
The implementation scenario is specifically as follows:
the method comprises the steps that steel rail ground transition resistance measurement wiring is arranged according to a steel rail ground transition resistance test principle diagram, after the steel rail ground transition resistance measurement wiring is finished, a control device CONS9 controls a current detection unit CTS of a detection device S10 to acquire current source injection current and store the current source injection current, a control device CONS9 controls a V gear of a UTS voltage detection unit of the detection device S10 to acquire and store steel rail ground voltage, a control device CONA11 controls a V gear of a UTA voltage detection unit of a detection device A12 to acquire steel rail ground voltage, a mV gear acquires 10m of steel rail longitudinal voltage drop and stores the steel rail ground voltage, and a control device CONB14 controls a V gear of a UTB voltage detection unit of a detection device B13 to acquire the steel rail ground voltage, and the mV gear acquires and 10m of steel rail longitudinal voltage drop and stores the steel rail longitudinal voltage.
After the test is finished, the control device CONA11 and the control device CONB14 transmit data to the control device CONS9, and the control device CONS9 processes the stored data and outputs a rail-to-ground transition resistance value and a rail longitudinal resistance value.
Referring to fig. 1-6 in the specification, the device for detecting electrical parameters of a rail return system in this embodiment includes a rail longitudinal resistance detection module and a rail ground-to-ground transition resistance detection module, where the rail longitudinal resistance detection module and the rail ground-to-ground transition resistance detection module both include a control device CONS9 and a detection device S10, the control device CONS9 is connected to a connection end of the detection device S10, an output end of the detection device S10 of the rail longitudinal resistance detection module is connected to an input end of the rail ground-to-ground transition resistance detection module, an input end of a control device CONS9 in the rail ground-to-ground transition resistance detection module is fixedly connected to a control device CONA11 and a control device CONB14, a connection end of the control device CONA11 is fixedly connected to a detection device a12, and a connection end of the control device CONB14 is fixedly connected to a detection device B13.
The implementation scenario is specifically as follows:
the method comprises the steps of firstly determining the content of measurement of electrical parameters of a steel rail reflux system, using a detection device S10, a control device CONS9 and a power supply P if only the longitudinal resistance of a steel rail is measured, and firstly measuring the longitudinal resistance of the steel rail if the ground transition resistance of the steel rail is measured, and then simultaneously using the detection device S10, a detection device A12, a detection device B13, a control device CONS9, a control device CONA11, a control device CONB14 and the power supply P to detect the ground transition resistance of the steel rail.
When the longitudinal resistance of the steel rail is measured, after wiring is finished, the control device CONS9 controls the voltage detection unit UTS and the current detection unit CTS of the detection device S10 to collect voltage and current signals and store the collected data, and after the test is finished, the control device processes the data of the stored data and outputs the longitudinal resistance value of the steel rail.
When the steel rail ground transition resistance is measured, firstly, a test section is determined, a detection device S10, a control device CONS9 and a power supply P are used at the middle point of the test section, a detection device A12, a control device CONA11 and the power supply P are used at one end of the test section, a detection device B13, a control device CONB14 and the power supply P are used at the other end of the test section, after the steel rail longitudinal resistance is measured, wiring is performed again, after wiring is performed, the control devices CONS9, CONA and CONB respectively control the detection device S10, the detection device A12 and the detection device B13 to collect and store voltage and current data, and after the test is performed, the control device CONS9 receives and processes the data stored by the control device CONA11 and the control device CONB14, and outputs the steel rail longitudinal resistance and the steel rail ground transition resistance.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a device for rail return-flow system electrical parameter detects, includes rail longitudinal resistance detection module and rail ground transition resistance detection module, its characterized in that: the rail longitudinal resistance detection module and the rail ground transition resistance detection module both comprise a control device CONS (9) and a detection device S (10), the control device CONS (9) is connected with the connecting end of the detection device S (10), the output end of the detection device S (10) of the rail longitudinal resistance detection module is connected with the input end of the rail ground transition resistance detection module, the input end of the control device CONS (9) in the rail ground transition resistance detection module is fixedly connected with a control device CONA (11) and a control device CONB (14), the connecting end of the control device CONA (11) is fixedly connected with a detection device A (12), and the connecting end of the control device CONB (14) is fixedly connected with a detection device B (13).
2. The device for detecting the electrical parameters of the steel rail return system according to claim 1, wherein: the detection device S (10) includes a voltage detection unit UTS and a current detection unit CTS.
3. The device for detecting the electrical parameters of the steel rail return system according to claim 2, wherein: the front surface one side of detection device S (10) is provided with CONS communication interface (7), detection device voltage detection unit mV shelves binding post (2) and detection device voltage detection unit V shelves binding post (3) have been seted up to detection device S (10) front surface opposite side, and rear surface one side is equipped with power P interface (5) and detection device switch (4), and the rear surface opposite side is equipped with current detection unit connecting terminal (8).
4. The device for detecting the electrical parameters of the steel rail return system according to claim 1, wherein: the detection device a (12) includes a voltage detection unit UTA and a current detection unit CTA.
5. An apparatus for rail recirculation system electrical parameter sensing according to claim 4, wherein: and a CONA communication interface (1) is arranged on one side of the front surface of the detection device A (12).
6. The device for detecting the electrical parameters of the steel rail return system according to claim 1, wherein: the detection means B (13) includes a voltage detection unit UTB and a current detection unit CTB.
7. An apparatus for rail recirculation system electrical parameter sensing according to claim 6, wherein: and a CONB communication interface (6) is arranged on one side of the front surface of the detection device B (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617655.9U CN214669278U (en) | 2021-03-26 | 2021-03-26 | Device for detecting electrical parameters of steel rail backflow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617655.9U CN214669278U (en) | 2021-03-26 | 2021-03-26 | Device for detecting electrical parameters of steel rail backflow system |
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| Publication Number | Publication Date |
|---|---|
| CN214669278U true CN214669278U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120617655.9U Active CN214669278U (en) | 2021-03-26 | 2021-03-26 | Device for detecting electrical parameters of steel rail backflow system |
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| CN (1) | CN214669278U (en) |
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- 2021-03-26 CN CN202120617655.9U patent/CN214669278U/en active Active
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