1. Most of the main use high -rise and other modern buildings of smoke and fire valves are equipped with ventilation, air conditioning and smoke -proof system. Once a fire occurs, the pipelines in these systems will become a channel for flames and smoke.In order to prevent the fire from spreading through the spread, the GBJ16-87 and "High-level Civil Architecture Design Fire Standards" GB50045-95 have clearly stipulated the requirements for the setting of smoke and fire valves in the GBJ16-87 and "High-level Civil Architecture Design Fire Specifications" GB50045-95.
The smoke exhaust fire valve manufacturers are used on the ventilation and air -conditioning systems, and the air -conditioning pipelines are usually open. Once the fire occurs, the gas temperature in the pipeline is closed by itself, and it can meet the refractory stability in a certain period of time.Sexual and refractory integrity requirements, start to smoke and fire.The smoke discharge valve is used on the inhalation of the smoke exhaust system pipe or the inhalation of the smoke exhaust fan. It is usually closed. When the fire occurs, the valve is manually or automatically open through the fire alarm signal.When the temperature is 280 ° C, it is automatically closed, and it can meet the refractory stability and refractory integrity requirements in a certain period of time.2. The important role of firewood valves in the ventilation, air conditioning and smoke -proof anti -exhaust system in smoke and fire valve includes gravity fire prevention valves, fire prevention regulatory valves, fire prevention air outlets, pneumatic fire prevention valves, smoke -proof fire prevention valves, electronic self -control, smoke and fire prevention valve, etc.A variety of products; smoke exhaust valves include smoke fire prevention valves, plate smoke exhaust ports (for ceiling), and use the tobacco downtime and other products.The fire prevention valve and smoke discharge valve are important components in ventilation, air conditioning and smoke -proof anti -exhaust systems. The important role played in the system mainly includes the following three aspects: 2.1. Tobacco -proof fire -blocking effects in the air supply system, the wind delivered by the ventilator,The main pipe must be allocated into the support; in the smoke exhaust system, the flue gas is discharged from the support of the support to the main pipe.When a fire occurs in the building, in the ventilation and air conditioning system, in order to prevent the fire from spread through the air supply system, when the gas temperature in the air supply system reaches 70 ° C, the fuse on the smoke and fire valve mechanismValve, cutting off the channels of the spread of smoke and fire along the air.Similarly, in the smoke discharge system, when a fire occurs, the smoke discharge valve is turned on and smoked.At 280 ° C, the fuse of the smoke and fire valve and the smoke discharge port movement, the valve must be automatically closed to prevent smoke.It can be seen that the fire prevention valve and the smoke discharge valve achieve the through.2.2. In the design of ventilation and air -conditioning system pipeline design, although calculated, if the operating conditions of the actual project change, the air volume of the system of the system must be adjusted through the fire valve valve.The openness of the valve is fixed and distributed reasonably to meet the design requirements.2.3. Start the air -load ventilation and air conditioner and smoke exhaust system all centrifugal fans and fire smoke shaft flowers. During the installation and commissioning, the start current of the motor is small. Generally, the motor startsThe pipeline is implemented.3. Systems of smoking firewood valve manufacturers systematically debug and maintain management.The fire prevention valve and smoke exhaust valve are not independent smoke -proof fire -resistant products in actual engineering, but have their*linkage logic relationship in the entire fire linkage control system.Therefore, in order to ensure that it played in the fire system, before the system acceptance, according to the linkage requirements, the debugging, air conditioning and smoke -proof anti -discharge systems must be performed.After the acceptance, there should be a planned daily maintenance management to ensure that the valve body is in normal condition, and its functions are played in smoke -proof fire prevention effects.The above is an important role in the fire and fire prevention valves in the ventilation, air conditioning and smoke -proof anti -exhaust system