碳纤维气瓶及瓶阀
Air cylinder& Air cylinder Valve
气瓶由高强度铝合金内胆加全缠绕的碳纤维复合材料制成，强度高，重量轻。气瓶是采用全缠绕碳纤维复合材料，气瓶内胆采用高强度、耐腐蚀、重量轻的铝合金材料；外部用数层碳纤维、玻璃纤维缠绕；气瓶表层为环氧树脂。
The air cylinder is made of high-strength aluminum alloy inner and fully wrapping carbon fiber composite material with high strength and light weight.
瓶阀带有安全自锁装置，可避免因使用过程中不慎碰撞或误操作而打开或关闭气瓶阀。气瓶阀的开关手轮，逆时针旋转为开启，反之为关闭，气瓶阀上设有安全膜片，爆破压力为（37～45）MPa,可防止气瓶内压力过高而变形或爆破。
The Valve with safe self lock device is to avoid open or close air cylinder valve caused by collision or mishandle in operation. The hand wheel of air cylinder valve rotates anticlockwise to open and on the contrary to close. The air cylinder valve is set with safety membrane with bursting pressure of (37～45) MPa, which can prevent the air cylinder to be transformed and blasted because of too high pressure in the cylinder.
背架总成
Backboard Components
背架组件主要由背架、肩带、腰带、带扣、减压器固定架和气瓶紧固带组成。肩带、腰带、减压器和气瓶都固定在背架上。背架完全按照人体工程学设计，外形完全贴合人体背部曲线，接触面大，佩戴舒适。背架由阻燃工程塑料和碳纤维材料注塑成型，强度高，耐冲击，不易损坏，重量仅有0.68kg。
The backboard assembly mainly composes of backboard, shoulder strap, waist belt, belt buckles, pressure reducer holder and tank band. Shoulder belt, waist belt, pressure reducer and air cylinder are all fixed on the backboard. The backboard is designed in complete accordance with human engineering. Its appearance fully fits human back curves with large contact surface and comfortable wear. The backboard is made by injection molding of flame-resistance engineering plastics and carbon fiber material with high strength, impact resistance, invulnerability and 0.68 kg weight.
肩带和腰带采用阻燃防滑、抗撕拉的织物编织而成，佩戴更舒适。带扣由阻燃材料制成。肩带、腰带和带扣阻燃性能符合CE标准要求。减压器由固定架上的穿钉固定在背架上，更换方便。
The shoulder belt and waist belt are woven by flame retardant, anti-skidding and anti-tearing fabrics and comfortable to be worn. The belt buckles are made flame-resistance materials. The flame resistant feature of shoulder belt, waist belt and belt buckle accords with the requirements of CEstandards. The pressure reducer is fixed on the backboard by wire dowels in the holder and convenient to change.
背板按照人体工程学原理设计。柔韧轻便并配备舒适的腰垫，使腰肩部物压迫感。其整体设计让使用者可以轻松的用单手操作整个装备。背板可携带不同尺寸的气瓶。
Back plate designed per ergonomic, lightweight and flexible. It's easily operate with one hand.
调节带分别与腰带肩带连接。通过拉紧和掀起调节带可起到调节背架高低，调整使用舒适度的作用，使其适于不同型体的作业人员使用。
Harness connect shoulder strap and belt , can fix the height of the SCBA.
腰带固定在腰带卡上，其长度可调。调解腰带的松紧可以分散呼吸器对肩部的压力，从而增加呼吸器佩戴的舒适性。
Adjusting the belt can distributed pressure on the shoulders.
调节气瓶固定带，将气瓶牢固地固定在背板上，以避免气瓶晃动。
Adjusting cylinder strap will firmly fixed on the cylinder on the back.
报警哨及压力表
Pressure Indicator and Alarming Device
压力显示是采用刻度（0～40）MPa 的压力表，它通过一根高压导管与减压器相连，表盘采用荧光材料，可在暗处观察压力表指示值。表面采用抗冲击材料，并设有橡胶保护套，有防水、防震和防尘功能，高压导管有限流装置，当压力表同其连接的高压导管脱开时，在气瓶压力为20MPa的情况下其漏气量不大于25L/min。
The pressure indicator is specified by scale ranged between（0-40）MPa, it is connected with the Reducer through a high pressure hose. The display panel is made of fluorescent material, which enables user to read the figure in darkness. The gauge surface is made of shock-resistant material, protected by rubber cover, waterproof, and dustproof. The high pressure hose is equipped with flow limit device, thus when the pressure gauge is separated from the high pressure hose, the air leaking volume should be no more than 25L/Min while the cylinder pressure is at 20MPa.
报警装置设在接近压力表的高压导管上，当气瓶中压力降低到（5.5±0.5）MPa时，报警哨会发出90dB(A)以上的连续报警声响。如果按报警压力值5MPa、气瓶容积6.8L、使用者呼吸的平均耗气量30L/min计算,则报警后尚可使用大约5-10分钟，不同气瓶容积报警后使用时间也是不同的。所以，使用者听到报警声应撤离现场，更换气瓶后方可继续工作。
The alarming device is on the high pressure hose near the pressure indicator. When cylinder pressure is below（5.5+ 0.5）MPa, the whistle will make about continuous 90d B(A) of noise. Working hours last another 5-10 minutes after warning, if we assume the alarming pressure at 5MPa, cylinder volume 6.8L, user average exhalation at 30L/min, it differs according to cylinder volume at the same time. Under such conditions, user must quit from dangerous place after hearing the alarm and is only allowed to continue to work after replacing with a new cylinder.The Warning Device is fixed on the high pressure pipe near the pressure gage. When the cylinder pressure reduces to (5.5±0.5) MPa, warning whistle will produce the continuous sounds over 90 dB(A). If the calculation is made according to the warning pressure value of 5 MPa, air cylinder volume of 6.8 L and users’ average gas consumption of 30 L/min, it can be used about 5-10 minutes after the warning and the using time of different cylinder volume differs after the warning. Therefore, users shall evacuate from the site after hearing the alarm and can continue to work after changing air cylinder
