Temperature control distributed marine pipeline anti-freezing device and laying method thereof

Abstract

The invention relates to a temperature control distributed marine pipeline anti-freezing device. The device comprises a pipeline heat tracing device and an electric heat tracing control box which are connected through a circuit, and the electric heat tracing control box controls the pipeline heat tracing device to be started or stopped. The pipeline heat tracing device comprises a plurality of electric heat tracing belts, wherein each electric heat tracing belt is laid along a pipeline and used for heating the pipeline and preventing the pipeline from freezing; and a plurality of temperature sensors attached to the outer wall of the pipeline at intervals and used for detecting the real-time temperature of different positions on the pipeline. The electric heat tracing control box is arranged on an aisle beside the pipeline and comprises a PLC which is in circuit connection with all the temperature sensors and used for receiving temperature signals fed back by the temperature sensors and sending control signals to control all the electric heat tracing belts to heat the pipeline or stop heating. The device has the advantages of being capable of achieving automatic detecting and alarming, low in manual operation cost and good in pipeline heat preservation effect.

Description

technical field [0001] The invention relates to a pipeline antifreeze device, in particular to a temperature-controlled distributed marine pipeline antifreeze device and a laying method thereof. Background technique [0002] During ship construction, some pipelines will be exposed outside the ship, which are sensitive to low temperature environment. When the temperature drops, the pipes exposed to the outside will freeze, which will make the associated equipment unable to supply water in time, resulting in equipment failure. Therefore, it is necessary to carry out antifreeze treatment on the pipelines that are prone to freezing to ensure the stable operation of related equipment. At present, in the antifreeze treatment measures for pipelines, there are usually the following three methods: 1. For key electromechanical equipment, keep them in the normal open state according to the situation; 2. Reduce the heat exchange between the pipeline and the external low temperature env...

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Problems solved by technology

[0003] In the above existing antifreeze measures for pipelines, there are also inevitable shortcomings.

The first measure is not universal, it is only applicable to a small number of devices, and cannot be popularized for all devices; the second measure is more difficult to operate, and the cost of maintenance is higher; the third measure is both universal and economical , but the current level of equipment intelligence is relatively low, and manpower is required to monitor and maintain the heating equipment. The equipment cannot heat the frozen pipeline in time and independently, and it is difficult to achieve the antifreeze and heat preservation effect of pipeline equipment.

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