Movable internal combustion locomotive preheating device with automatic constant-temperature control function

Abstract

The invention discloses a movable internal combustion locomotive preheating device with an automatic constant-temperature control function. The internal combustion locomotive preheating device comprises a preheating device structure, a heating box, a heating bar, a temperature sensor, a water supply valve, a water return valve, a circulating water pump and a preheating control device. The heating box is arranged at the top of the preheating device structure and divided into a water outlet area and a water return area through a horizontal partition plate internally arranged, wherein the water outlet area and the water return area are communicated. The heating bar and the temperature sensor are arranged in the water outlet area. The water outlet area is communicated with a water inlet of an internal combustion locomotive water circulating system through a water outlet pipe. The water return area is communicated with a water drain opening of the internal combustion locomotive water circulating system through a water return pipe. The circulating water pump is arranged in a pipeline of the water return pipe. The preheating control device is arranged below the heating box, electrically connected with the heating bar, the temperature sensor and the circulating water pump and used for achieving automatic control over the preheating device. The preheating device can reduce preheating energy consumption of a north internal combustion locomotive in winter, and improve the preheating efficiency of the locomotive in winter.

Description

technical field [0001] The invention relates to a diesel locomotive preheating device, in particular to a mobile automatic constant temperature control diesel locomotive preheating device, which belongs to the technical field of diesel locomotive preheating. Background technique [0002] When the diesel locomotive diesel engine starts or stops, there are certain requirements for the temperature of the engine oil, fuel and cooling water of the diesel engine. When the oil and water temperature is lower than 20°C, the diesel engine is not allowed to start; when the oil and water temperature is lower than 40°C, the diesel engine is not allowed to load; when the diesel engine is shut down in winter to keep warm, the oil and water temperature must not be lower than 20°C. The temperature of lubricating oil and cooling water is too low, which not only makes it difficult to start the diesel engine, but also causes serious wear of moving parts, poor fuel atomization, and affects the q...

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Problems solved by technology

[0003] Diesel locomotives are usually preheated in winter by building an insulated garage. The disadvantages are high investment costs, short operating time, and low utilization efficiency; or use the waste heat boiler equipped with the locomotive itself. The disadvantage is that the preheating device does not have an automatic control system, and diesel consumption is high. Large, and at the same time, personnel are required to monitor at any time, otherwise there will be "boiling"; or the diesel engine is used to idle to maintain the temperature of the locomotive. Abrasion reduces the service life of the equipment. The above-mentioned preheating methods have different degrees of disadvantages. Especially with the change of the form of metallurgical enterprises, it has become necessary to reduce energy consumption, reduce personnel, and improve the degree of automation.

[0004] None of the existing preheating schemes for diesel locomotives can meet the needs of low energy consumption, low labor costs, and high degree of automation in the current form of metallurgical enterprises, and there is no relatively mature mobile constant temperature locomotive preheating equipment at present

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