A control system and method for an electric heater for plateau trains

Abstract

The invention discloses a control system and a control method for an electric heater of a plateau train. The system comprises a central processor, a data storage module, a temperature detection module, a pressure detection module, a display module and an electric heater control module respectively connected with the central processor. Wherein, a temperature detection module is used for detecting the temperature inside and outside the vehicle compartment and the surface temperature of the electric heater cover; A pressure detection module, configured to detect the air pressure inside and outside the train compartment; The central processing module is used for calculating the heat load of the train in heating season, calculating the heat dissipation amount of the electric heater, and preliminary calculating and checking the number of the radiators according to the data detected by the temperature detecting module and the pressure detecting module. An electric heater control module, configured to control the opening number of the electric heater and the surface temperature of the electric heater cover. The invention has the beneficial effects of ensuring that the temperature in the train meets the requirements of the specifications and ensuring that the surface temperature of the electric heater cover is not higher than the safety temperature.

Description

technical field [0001] The invention belongs to the field of electric heater control, and in particular relates to a control system and method of an electric heater for plateau trains. Background technique [0002] The section of the Qinghai-Tibet Railway whose altitude is higher than 4000m is as long as 965km, and the atmospheric pressure is far lower than that of the plain area. The average air pressure of the northern Tibetan Plateau is about 60% of that of the plain; The extreme low temperature is -36~-45°C, and the annual average temperature is below 0°C. Except for the section north of Lhasa, which belongs to the cold area, the rest belong to the alpine area. [0003] The plateau area is high in altitude and the outdoor air temperature is low. In order to maintain the design temperature standard of the train compartment, the heat load required for the train traveling from the plain to the plateau increases. The lower atmospheric pressure in the plateau area leads to lo...

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Problems solved by technology

[0003] The plateau area is high in altitude and the outdoor air temperature is low. In order to maintain the design temperature standard of the train compartment, the heat load required for the train traveling from the plain to the plateau increases. The lower atmospheric pressure in the plateau area leads to low air density, which makes the air conditioning The heating efficiency is reduced, and the convective heat transfer capacity is reduced. Electric heaters are often installed on the train to meet the increased heat load demand. According to the railway industry standard of the People's Republic of China, the surface temperature of the electric heater cover plate should not exceed 68 ℃ , also known as the safe temperature, so in order to ensure that the temperature requirements in the train compartment and the surface temperature of the electric heater cover are not higher than the safe temperature, it is necessary to intelligently control the electric heater

[0004] In the prior art, considering plateau low-pressure environment, some relate to electric heaters that can be used efficiently in plateau areas, and some relate to vehicle air-conditioning units with air-air heat exchangers suitable for plateau environments, but there is a lack of information about Technical Research on Intelligent Control Strategy of Plateau Train Using Electric Heater

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