Controlling device capable of automatically cutting off train pipe and exhausting in case of undervoltage main blast line and control method

Abstract

The invention discloses a controlling device capable of automatically cutting off a train pipe and exhausting in case of an undervoltage main blast line and a control method. The controlling device comprises a pneumatic valve, wherein the left and right sides of the pneumatic valve are provided with valve ports, the valve port at the left side of the pneumatic valve is connected with a train pipeoutlet of a locomotive equalizing reservoir relay valve, the valve port at the right side of the pneumatic valve is connected with a train pipe inlet of a locomotive distributing valve, an exhaust outlet is arranged at one side of the pneumatic valve, the bottom of the pneumatic valve is provided with an actuating valve port, a magnetic valve is arranged below the pneumatic valve, an air inlet and an air outlet are arranged on the magnetic valve, the air inlet at the top of the magnetic valve is connected with a locomotive main blast line, the air outlet is connected with the actuating valve port, and an exhaust port is also arranged on the magnetic valve. The connection, isolation and automatic exhaust of the train pipe can be controlled by the switch-on and switch-off of an electronic control valve; and the train pipe cutoff and automatic exhaust can be realized on an air path in case of the undervoltage main blast line communicated with the pneumatic valve.

Description

technical field [0001] The invention relates to a rail locomotive braking system, in particular to a control device and a control method for automatically cutting off and exhausting a train pipe under pressure in a general air pipeline. Background technique [0002] The braking system of rail locomotives is a key component to ensure the safety of rail transportation, and the safety, reliability and stability of the braking system are particularly important. Therefore, the hidden dangers in the braking system will pose a serious threat to the safety of the locomotive. [0003] At present, the locomotive braking system generally implements traction blockade and emergency braking or parking braking for the protection of the low pressure of the main air pipe. However, in practical application, there are the following deficiencies: 1. Existing locomotive main air duct road low pressure protection is not provided with a train pipe exhaust control device, and only implements corr...

AI Technical Summary

Problems solved by technology

However, in practical application, there are the following deficiencies: 1. Existing locomotive main air duct road low pressure protection is not provided with a train pipe exhaust control device, and only implements corresponding braking protection measures through the locomotive circuit logic control unit; 2. When the pressure of the main air duct of the locomotive is too low, in the case of failure or failure of the electrical components of the logic control unit of the locomotive circuit, the braking system of the locomotive cannot implement corresponding braking protection measures in time, which brings great safety to the normal operation of the locomotive Hidden dangers; 3. When the locomotive is operating in the double-connection mode, the double-connection locomotive does not isolate the train pipe on the gas circuit

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