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Protecting device and method for urban traffic rail potential

A technology of protection device and traffic rail, which is applied in the direction of track installation, transportation and packaging, and electrical program control, etc., and can solve the problems that the programmable controller cannot operate efficiently, cannot operate, and the programmable controller is damaged.

Inactive Publication Date: 2017-11-24
NANJING INST OF RAILWAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The programmable controller is often installed in the control cabinet, and the programmable controller will become hot because it is in a relatively closed environment during the operation of the control cabinet. In this way, the programmable controller cannot operate efficiently, and eventually There will also be damage to the programmable controller, so a ventilation device must be installed in the control cabinet to send the heated gas in the control cabinet out of the control cabinet. However, general ventilation equipment will also remove particulate impurities outside the control cabinet. If it is sent to the control cabinet, a large amount of particles and impurities will adhere to the programmable controller in the control cabinet. Such a large amount of particles and impurities will stain the programmable controller and even make the programmable controller unable to operate. Therefore, it is necessary to be able to A control cabinet that realizes air exchange and cooling and avoids the influence of particulate impurities

Method used

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  • Protecting device and method for urban traffic rail potential
  • Protecting device and method for urban traffic rail potential
  • Protecting device and method for urban traffic rail potential

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as Figure 1-Figure 4 As shown, the protection device for urban traffic rail potential in this embodiment includes a programmable controller 1 and a voltage detection module 3; wherein, the voltage detection module 3 and the programmable controller for detecting the voltage between the rail and the protection ground 1 communication connection;

[0055] The programmable controller is arranged in a cuboid-shaped hollow control cabinet 1U, and the control cabinet 1U includes a cuboid-shaped top wall plate, a cuboid-shaped left wall plate, a cuboid-shaped right wall plate, and a cuboid-shaped bottom wall. plate and a cuboid rear wall, the bottom wall of the top wall is connected with the top wall of the left wall, the top wall of the right wall and the top wall of the rear wall, the rear of the left wall The wall is connected to the left end of the rear wall, the rear wall of the right wall is connected to the right end of the rear wall, the bottom wall of the left wa...

Embodiment 2

[0076] Such as Figure 1-Figure 4 As shown, the protection device for urban traffic rail potential in this embodiment includes a programmable controller 1 and a voltage detection module 3; wherein, the voltage detection module 3 and the programmable controller for detecting the voltage between the rail and the protection ground 1 communication connection;

[0077] The programmable controller is arranged in a cuboid-shaped hollow control cabinet 1U, and the control cabinet 1U includes a cuboid-shaped top wall panel, a cuboid-shaped left wall panel, a cuboid-shaped right wall panel, and a cuboid-shaped bottom wall. plate and a cuboid rear wall, the bottom wall of the top wall is connected with the top wall of the left wall, the top wall of the right wall and the top wall of the rear wall, the rear of the left wall The wall is connected to the left end of the rear wall, the rear wall of the right wall is connected to the right end of the rear wall, the bottom wall of the left wa...

Embodiment 3

[0106] Such as Figure 1-Figure 4 As shown, the protection device for urban traffic rail potential in this embodiment includes a programmable controller 1, a contactor 21, a thyristor strong trigger module 221, an anti-parallel thyristor assembly 222 and a voltage detection module 3; The voltage detection module 3 of the voltage between the protection ground and the programmable controller 1 is connected in communication; the contactor 21 and the anti-parallel thyristor assembly 222 are connected in series between the rail and the protection ground, and the contactor 21 is connected to the programmable controller 1 communication connection, the anti-parallel thyristor assembly 222 is connected to the programmable controller 1 through the thyristor strong trigger module 221, and the thyristor strong trigger module 221 is respectively connected to the control terminals of the two thyristors in the anti-parallel thyristor assembly 222; The programmable controller 1 controls the c...

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PUM

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Abstract

The invention relates to a protecting device and method for urban traffic rail potential. The device comprises a programmable controller and a voltage detection module, wherein the voltage detection module which is used for detecting the voltage between a steel rail and a protected area is in communication connection with the programmable controller; the programmable controller is arranged in a cuboid-shaped hollow control cabinet; a cover plate is hinged to an opening of the control cabinet by a hinge so that the cover plate is used for covering the opening; the control cabinet further comprises R sieve plates and ventilating equipment, and R is a natural number and stands for the number of the sieve plates; an air supply channel is formed in the control cabinet; one end of the air supply channel is located in the control cabinet; and the R sieve plates are located on the air supply channel and are used for filtering out particulate matter impurities of air in the air supply channel. By the control cabinet, ventilating and cooling can be implemented, and further, influence of the particulate matter impurities can be avoided.

Description

technical field [0001] The invention relates to the technical field of urban traffic rail potential, in particular to a protection device and method for urban traffic rail potential. Background technique [0002] The traction power supply system of urban rail transit adopts overhead catenary power supply, and the running rail is used as the return path. In order to reduce the corrosion of stray currents on civil structural steel bars, steel rails, equipment metal casings and other underground metal pipelines, relatively complete stray current protection measures have been adopted during the construction of rail transit. That is: the DC traction power supply system is designed as an ungrounded system, and the DC power supply equipment is installed in isolation, and the rail is insulated from the ground through an insulating pad to reduce the leakage of stray current. When there is a starting or running train in the power supply section, or a system short-circuit fault occurs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M5/02G05B19/05
CPCG05B19/058B60M5/02G05B2219/14006
Inventor 宋奇吼冯洪高周昌松顾娜王海军杨飏陈莉王雪钰严寒钰
Owner NANJING INST OF RAILWAY TECH
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