Metro electric accompanied by tropical installation and maintenance guide

　　With the acceleration of urbanisation, the safety and reliability of the metro, as an important part of urban public transport, is receiving more and more attention. Especially in the cold area, the metro system of water supply and drainage pipeline, fire pipeline and other facilities in the winter is easy to be affected by the low temperature, resulting in pipeline freezing, rupture and other problems, seriously affecting the normal operation of the metro. In order to solve these problems, electric accompanied by tropical as an effective insulation solution, is widely used in the underground industry.

　　This article will introduce the installation and maintenance guide of electric heat tape in underground in detail, help underground to ensure the normal operation of the system and the safety of passengers.

　　First, the basic principle of electric accompanied by tropical

　　Electric accompanied by the tropical is a kind of through the electric energy into thermal energy, the pipeline or other equipment for heating insulation device. It mainly consists of electric heating wire, insulating material and sheath. When the electric current passes through the electric wire, the electric energy is transformed into heat energy, and the heat is transferred to the heated object through the sheath, so as to achieve the purpose of heat preservation.

　　Second, the installation steps of electric heating tape

　　Installation of electric heat tape need to follow certain steps to ensure its normal work and extend the service life. The following are the installation steps of electric accompanied by heat tape:

　　1. Material preparation: Before the installation of electric accompanied by the tropical installation, the following materials need to be prepared: electric accompanied by the tropical, thermal insulation materials (such as rock wool, aluminium silicate, etc.), tape, aluminium foil and other auxiliary materials.

　　2. clean the surface: remove the oil, dust and other impurities on the surface of the pipeline or equipment to ensure that the installation surface is dry and clean.

　　3. Laying electric accompanying heat tape: lay electric accompanying heat tape in accordance with the design requirements in the pipeline or equipment, pay attention to keep the electric accompanying heat tape and the pipeline or equipment close fit.

　　4. fixed electric accompanied by the heat: use the tape or special fixture will be electric accompanied by the heat fixed in the pipeline or equipment, to prevent its use in the process of shifting or falling off.

　　5. wrapping insulation material: wrapping insulation material on the outside of the electric accompanied by tropical, to ensure that the insulation layer is even, dense, no gaps.

　　6. Seal the heat preservation layer: Use aluminium foil or special sealing material to seal the heat preservation layer to prevent the heat dissipation.

　　7. Energised test: after the installation is completed, carry out energised test on the electric accompanied by the tropical belt to ensure that it works normally and there is no abnormal heating phenomenon.

　　8. check the effect of heat preservation: check whether the heat preservation layer is even, dense, no gap, to ensure good heat preservation effect.

　　9. Record data: Record electric accompanied by tropical working voltage, current and other parameters, in order to follow-up maintenance and debugging.

　　Third, electric accompanied by tropical maintenance precautions

　　In order to ensure the long-term stable operation of the electric accompanied by tropical, need to be regularly maintained and inspected. The following is the electric accompanied by the tropical maintenance precautions:

　　1. Regular inspection: regularly check the electric accompanied by the tropical and the condition of the insulation layer, timely detection and treatment of possible problems.

　　2. Avoid mechanical damage: the installation process should avoid the electric accompanied by tropical by mechanical damage or excessive stretching, so as not to affect its service life and accompanying heat effect.

　　3. keep clean: keep the surface of the pipeline or equipment clean, avoid oil, dust and other impurities affect the normal work of the electric heating tape. 4. check the electrical connection: regularly check the electric connection of the electric heating tape is firm, to avoid the failure caused by the loosening or poor contact.

　　5. monitor the temperature: use the temperature sensor to monitor the working temperature of the electric heating tape to ensure that it works within the normal range.

　　6. Record the maintenance log: Record the time, content and result of each maintenance in detail for subsequent reference and analysis.

　　7. Replacement of damaged parts: when electric accompanied by tropical or thermal insulation layer is found to be damaged, it should be replaced in time to avoid affecting the overall thermal insulation effect.

　　8. train the operator: train the operator, make him master the correct use and maintenance method of electric accompanied by tropical, improve the working efficiency and safety.

　　9. comply with safety regulations: in the process of installation and maintenance, strictly comply with safety regulations, wearing the necessary protective equipment to ensure personal safety.

　　10. Regularly update the equipment: according to the service life of the electric accompanied by tropical and the actual operation of the situation, regularly update the equipment to ensure the long-term stable operation of the system.

　　As an effective heat preservation solution, electric accompanied by tropical as a metro industry has been widely used. Through correct installation and regular maintenance, the metro company can effectively prevent problems such as freezing and rupture of pipes, ensuring the normal operation of the metro system and the safety of passengers. In the future, with the continuous progress and innovation of technology, the application of electric heating tape in the metro industry will be more widely used, and make greater contribution to the development of urban public transport.