What kind of inspection and maintenance does the smoke exhaust valve need in daily maintenance?
Publish Time: 2025-05-06
As a key component in the building fire safety system, the normal operation of the smoke exhaust valve is crucial to ensure the safety of personnel and reduce property losses. Therefore, it is particularly necessary to regularly inspect and maintain the smoke exhaust valve in daily maintenance. Through scientific and reasonable maintenance measures, it can not only ensure that the smoke exhaust valve can respond quickly and work effectively in an emergency, but also extend the service life of the equipment and reduce the failure rate.First of all, cleaning is one of the most basic and important links in the daily maintenance of the smoke exhaust valve. Since the smoke exhaust valve is usually installed in the ventilation duct, it is easy to accumulate dust, oil and other impurities. These substances will not only affect the opening and closing flexibility of the valve, but also may hinder the smooth flow of airflow, thereby affecting the smoke exhaust effect. Therefore, it is very important to regularly clean the dust and dirt on the inner and outer surfaces of the smoke exhaust valve and the internal mechanical parts. When operating, use a clean and soft cloth or brush to wipe gently to avoid scratching the metal surface; for stubborn stains that are difficult to remove, special cleaning agents can be used for treatment, but be careful to choose products that will not corrode metal materials.In addition to external cleaning, the lubrication of the internal moving parts of the smoke exhaust valve should not be ignored. After long-term operation, the moving parts such as bearings and connecting rods may be worn or dry, resulting in slow or even stuck switch action. In order to maintain a good operating state, appropriate amount of lubricant should be added to these parts regularly under professional guidance. It is worth noting that the selected lubricant must meet the requirements of relevant standards, provide good lubrication effect, withstand high temperature environment and not easily volatilize and fail. At the same time, the amount should be controlled during the filling process to prevent excessive grease from dripping and contaminating other parts or affecting the sealing performance.Next is the inspection and testing of the electrical part. Most modern smoke exhaust valves are equipped with electric actuators for remote control and automatic opening and closing functions. This requires regular inspection of whether the circuit connection is firm and reliable, and whether the insulation layer of the wire is damaged or aging. Once a problem is found, the damaged parts should be repaired or replaced in time to ensure accurate signal transmission. In addition, functional tests of components such as relays and contactors in the electric control box should be carried out according to the prescribed cycle to verify whether they can operate correctly according to the instructions. In particular, the fire alarm linkage test is indispensable. Only after multiple simulation drills can the entire fire protection system be kept in the best standby state.The structural integrity of the smoke exhaust valve itself is also the focus of maintenance work. Carefully check whether the valve body has cracks, deformation or other physical damage, especially for equipment that has been exposed to harsh environments for a long time or has experienced the test of fire. Any minor defects may cause the valve to close loosely and cause air leakage, thereby weakening the fire separation effect. If any abnormal situation is found, be sure to contact the manufacturer's technicians in time for evaluation and repair, and do not disassemble and modify it without authorization to avoid causing greater risks.Finally, after completing the above inspections, the smoke exhaust valve should also be fully functionally tested. This includes manual opening and closing tests to verify operational flexibility, and using special instruments to measure whether its opening angle meets the design requirements. At the same time, record the results of each test and compare and analyze with historical data to keep abreast of the equipment operation trends. Through continuous tracking and monitoring, potential hidden dangers can be predicted in advance, preventive maintenance measures can be taken, and system reliability can be maximized.In summary, meticulous daily maintenance of smoke exhaust valves can not only ensure that they are always in good working condition and meet fire safety requirements, but also help optimize resource allocation and reduce operating costs. Both building managers and professional maintenance teams should attach great importance to this link, strictly perform various tasks in accordance with regulations, and jointly guard the public safety line. With the advancement of technology, more intelligent means may be applied to the maintenance and management of smoke exhaust valves in the future to further improve work efficiency and service quality.
