High-altitude and low-temperature environment electric control system comprehensive temperature and pressure stable driving device

Abstract

The invention relates to a high-altitude and low-temperature environment electric control system comprehensive temperature and pressure stable driving device. The device comprises a drainage pipe, a booster fan, an air return fan, a flow guide cavity, a main flow guide air port, at least one auxiliary flow guide air port, an air amplifier, a wind pressure sensor, a temperature sensor, an electricheating device and a control circuit, wherein the flow guide cavity comprises a bearing outer wall, a flow guide inner container and a flow guide plate, wherein the bearing outer wall wraps the outerwall of the flow guide inner container; the bearing outer wall and the flow guide inner container are distributed in an air return cavity in an axis parallel mode; the main flow guide air port is embedded into the front end plane of the flow guide inner container; and at least one auxiliary flow guide air port is formed in the front end plane of the air cavity. On one hand, the stability of temperature adjustment and pressure regulation operation on the terminal position of the power distribution cabinet can be effectively improved, and on the other hand, the temperature, the air pressure andthe air flow direction can be flexibly adjusted, so that the flexibility and the reliability of the temperature adjusting and pressure regulating control operation are greatly improved; and meanwhile,the comprehensive recycling rate of the heat energy and the airflow circulating kinetic energy of the power distribution cabinet can be improved.

Description

technical field [0001] The invention relates to a temperature adjustment of a power distribution cabinet, which belongs to the technical field of power transmission and transformation. Background technique [0002] At present, in order to meet the stability and reliability of the operation of the power distribution cabinet in the high-altitude low-voltage environment and low-temperature environment, special booster equipment and temperature adjustment equipment are often added to the power distribution cabinet equipment operating in such environments, so as to Ensure that the air pressure and temperature of the circuit operating environment inside the power distribution cabinet are stable, so as to overcome the defects of poor operating performance and equipment operation stability of the circuit equipment in the power distribution cabinet caused by the low temperature environment and low air pressure environment, and improve the operation stability of the power distribution ...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to meet the stability and reliability of the operation of the power distribution cabinet in the high-altitude low-voltage environment and low-temperature environment, special booster equipment and temperature adjustment equipment are often added to the power distribution cabinet equipment operating in such environments, so as to Ensure that the air pressure and temperature of the circuit operating environment inside the power distribution cabinet are stable, so as to overcome the defects of poor operating performance and equipment operation stability of the circuit equipment in the power distribution cabinet caused by the low temperature environment and low air pressure environment, and improve the operation stability of the power distribution cabinet equipment and reliability. At present, in this type of power distribution cabinet equipment, the temperature and pressure regulation equipment used are often based on air conditioners, air compressors, and air supply management systems. Although they can meet the needs of use , but on the one hand, the currently used temperature and pressure regulation system has a complex structure and relatively high operating costs, resulting in a complex overall structure of the power distribution cabinet, difficulty in operation and maintenance, and relatively high costs. During the operation of the temperature and pressure regulating system, due to the different distribution positions of the air supply management system, the high-temperature airflow medium of heat source equipment such as air conditioners and air compressors will exist to varying degrees when the air supply management system is running. However, the efficiency of heating and pressurization inside the power distribution cabinet is reduced, so the current type of power distribution equipment has the defects of poor temperature and voltage regulation operation control accuracy and low efficiency to varying degrees. During the temperature and pressure regulation of the electric cabinet, the airflow for temperature and pressure regulation of the power distribution cabinet has low heat exchange efficiency to varying degrees during operation, resulting in high energy consumption and low regulation efficiency for the temperature and voltage regulation of the power distribution cabinet. Low, relatively large loss of heat and kinetic energy resources and other defects

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