Temperature and humidity control device suitable for sealed environment

Abstract

The invention discloses a temperature and humidity control device suitable for a sealed environment and relates to the field of rail transit locomotive electric transmission temperature and humidity control. The device comprises a fan I and a fan II which are arranged side by side, wherein a dehumidification module and a radiator are arranged on lower portions of the fan I and the fan II, a drainage pipe used for draining condensate water is arranged on the dehumidification module, a drainage pipe is located on a lower portion of the dehumidification module, a water outlet pipe of the radiatoris connected with a water inlet of an external cooling tower, a water inlet pipe of the radiator is connected with a water outlet of a cooling tower, the fan I and / or the fan II promote air circulation in the equipment from top to bottom, hot air passes through the radiator and the dehumidification module to achieve heat exchange between a cooling medium and internal circulating air, in the heatexchange process, the condensate water generated in the dehumidification module is drained out of the equipment through the drainage pipe. The device is advantaged in that the device can play a role in cooling and dehumidifying in the sealed environment, so safe use of electrical elements is guaranteed, and the service life of electrical equipment is prolonged.

Description

technical field [0001] The invention relates to the field of temperature and humidity control of electric transmission of rail transit locomotives, in particular to a temperature and humidity control device suitable for a sealed environment. Background technique [0002] The South African diesel locomotive project is the electric drive system of 232 diesel AC transmission locomotives supplied by Dalian Company to South African TFR Company. In 2014, CRRC Dalian signed a supply contract of 232 diesel locomotives with a total value of about 900 million US dollars with TFR, a state-owned transportation group in South Africa. The South African locomotive has a power of 3300kW and is the most powerful narrow-gauge diesel locomotive in the world. According to the requirements of the South African TRF technical document, the ambient temperature is -10°C to +50°C (the domestic locomotive environment is generally -25°C to +40°C), and the high temperature is 10°C higher than the domes...

AI Technical Summary

Problems solved by technology

There are many components inside the converter cabinet, and the structure is compact and dense. In addition to the power module that is dissipated by the water cooling system, there are also components that generate heat, such as DC capacitors, filter capacitors, and traction units. Because of the IP55 sealing level in the cabinet, the location of these components may Local high temperature occurs, and local temperature rise will seriously affect the life of components, which will further affect the stability and reliability of products

In addition, due to the fully sealed environment inside the cabinet, condensed water is likely to be generated due to the difference in temperature difference, which is also a major safety hazard for the electrical and electronic equipment in the cabinet.

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