2? Fire control valve: the basic function is the same as above, but there is a gear hole on the handle of the actuator, which can change the angle of the valve plate in stages to achieve the purpose of adjusting the air volume;
3? Smoke exhaust fire valve: this valve is normally closed and is generally used in smoke exhaust system. When the valve actuator receives the DC24V electrical signal, it will automatically open, interlock the operation of the fan and other equipment, and forcibly discharge the smoke in the partition. If there is an open flame in the smoke, its temperature will reach above 280 degrees Celsius. If the smoke continues, the fire will spread to other districts. At this time, the fusible alloy of the valve will be blown off, so that the valve will be closed again to block the fire, and the interlocking fan will be interlocked in the valve.
4? Smoke exhaust fire damper: this product does not exist. Because the "smoke exhaust fire damper" is normally closed and does not need to adjust its air volume, there is no such equipment in theory;
5? Smoke and fire control valve: basic function: normally open; Manual shutdown; DC24V electric signal is turned off; 70℃ fuse (if it is used in kitchen smoke exhaust and ventilation system, the working temperature should be150℃); Manual reset; With interlocking switch device; The handle has a clamping hole, and the air volume is adjusted in six gears; This valve is normally open. When the smoke detector of the partition sends a signal to the control center, the system will give the valve an action signal and the valve will close. This is the basic smoke prevention function. The actuator of the valve is also equipped with fusible elements, and when the temperature reaches its action value, the valve will also close, which is its "fire prevention" function;
? 6? Split multi-leaf regulating valve: This valve is a device to control the airflow in the air duct. Its blades are split, and the number of blades depends on the specifications of the valve. Its name should be preceded by "manual" or "electric".
Let's look at the louver vents.
1? Square diffuser: generally square, with "back" shaped blades, generally used as an air supply outlet, and the angle of the blades makes cold air or fresh air spread around; Its materials are divided into aluminum alloy, ABS plastic steel, teak, stainless steel and so on.
2? Strip diffuser: hence the name of Sisi Lee, it is a strip outlet, also called "linear diffuser", which is generally used for air supply or return air of air conditioners. The blades are arranged linearly, and the blade angles are divided into 0-degree direct blowing, 30-degree oblique blowing, 30-degree bidirectional oblique blowing and movable blades. Generally, there are two kinds of materials: aluminum alloy and ABS.
Single-layer louver: it should be a "single-layer movable louver" with a layer of blades that can be pulled by hand to change the direction of air supply, and is generally used as an air outlet;
4 Double blinds: It should be "double movable blinds". Compared with before, it has two layers of vertical blades, which can adjust the air supply direction more flexibly;
5? Door hinged air return port: used on the air return port of air conditioner, the blade part of the air outlet can be opened or removed at will to clean the filter screen. Because it can be opened like a door, it is called "door hinge type" Its blades are generally 45 degrees.
6? Swirl tuyere: it is round. When the airflow passes through it, the blades will rotate under the action of the wind, so the wind will also rotate, achieving the effect of natural wind. This kind of equipment is generally made of iron, and the surface is painted;
7? Multi-leaf smoke outlet: This equipment is used in smoke control and exhaust system, and its function is equivalent to "smoke exhaust valve", but its actuator is installed at one end in the valve body, with aluminum alloy louver panel outside and access door on the panel, which is convenient for the operation and debugging of the valve. Function: normally closed; DC24V electric signal is turned on; Manual reset; Open it manually; With interlocking device;
? 8? Multi-leaf air supply outlet: The structure and function are exactly the same as the "multi-leaf smoke exhaust outlet", and it is only used for air supply system.
? 9? Spherical nozzle: also called "remote spherical nozzle", it is circular, and the tuyere is a "sphere" whose angle can be adjusted within the range of plus or minus 30 degrees, so it is called spherical nozzle and is generally made of aluminum alloy. Spherical nozzles are mainly used in air conditioning air supply outlets far away from people's activities, such as airport terminals, various halls, assembly workshops and so on. When the ceiling air supply outlet can't supply air evenly or achieve the effect, in this case, it is necessary to install a nozzle to supply air at the side. When the temperature difference between supply air and room temperature is constantly changing, the supply air flow will move upward (hot air) or downward (cold air). The direction of air supply may also be disturbed by external factors, such as local convection or lateral airflow. The spherical nozzle is designed to be rotatable, and the air supply direction can be manually adjusted on site, or it can swing within the range of plus or minus 30 degrees through actuators. Pneumatic or electric actuators can also be provided as required. Specifications and models are optional 100 ~ 630.