青岛船陆通风设备有限公司 
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CBZT系列船用防爆轴流通风机(以下简称防爆通风机)是按照GB11799-89《船用防爆离心通风机》与GB11800-89《船用防爆轴流通风机》、GB3836-2000《性环境用防爆电气设备》中的“1通用要求”及“2隔爆型电气设备d”的有关规定和中国船级社现行的《钢质海船入级和建造规范》的有关规定设计制造的。
本系列防爆通风机经中华人民防爆检验单位检验合格，取得了防爆合格证，同时也经中国船级社检验合格，取得了产品船检认可。
用 途
防爆通风机的防爆标志为：ExdⅡBT4。可输送含有易燃、易爆的混合性气体或蒸汽，可输送空气、含有盐雾的海洋空气和含有油雾等腐蚀性空气。
防爆通风机适用于抽除船舶上油舱、货舱、泵舱、蓄电池舱、舱、飞机库、油漆间等所含有易燃、易爆的混合性气体或蒸汽，也适用于船舶其它舱室的通风换气和陆上各部门的相应场所。
防爆通风机可配用50Hz，380V或60Hz，440V，YB-H系列隔爆型船用三相异步电动机。
工 作 条 件
ⅡB级、Ｔ4组性混合物气体的舱室和场所。
环境温度：-25～+50℃
空气相对湿度：不大于95%
周期性摇摆：22.5°～45°
(摇摆周期５～１０Ｓ)
持续横倾：１５° 持续纵倾：１０°
振动：有
冲击：有
结 构 型 式
CBZT型：
防爆通风机有三种结构，即Ⅰ型(甲板式)、Ⅱ型(管道式)和Ⅲ型(隔舱式)。整机结构，均为无火花型。
Ⅰ型防爆通风机带有风帽，防爆电机装在机架上部，机架周围为2目/吋的不锈钢网，整机立式安在甲板上。可用于抽风或送风。
Ⅱ型防爆通风机不带风帽，防爆电动机为内装式，由静叶撑脚固定在机壳上。可立式或卧式安装，也可安装在甲板上，可用于抽风或送风。
根据用户特殊需要，可制成Ⅲ型结构，即风机和电机分隔舱型式，中间加传动装置，密封填料函和挠性联轴器的结构。主要用于排除危险舱室的气体。
特 点
CBZT型：
防爆、运转安全、可靠。
防腐蚀性能好。
抗摇摆、振动和冲击性能强。
型 号 说 明
防爆通风机以汉语拼音字母的字首，叶轮外径、转速和所配防爆电动机功率等来表示，示例如下：
（CBZT-80A/7.5-1460）I
其中：
C—船, 用
B—防爆
L—离心通风机
Z—轴流通风机
15—叶轮外径15cm(圆整值)
80—叶轮外径80cm(圆整值)
A—叶轮代号，指A叶轮
075—防爆电动机功率075KW
75—防爆电动机功率75KW
2920—标准转速为2920r/min
1460—标准转速为1460r/min
I—结构型式为甲板式
注：(REMARKS)：1mmH2O=9.807Pa
CBZTⅠ型(甲板式)由于结构上的原因(无静叶作用，气流出口处的气流转向、转向后的金属丝网的阻力以及风帽的作用等)，实际的风机性能较叶轮相同设计下的CBZTⅡ型将发生差异，需要进行必要的修正，修正方法如下：
流量修正系数：fQ=0.8～0.9；
压力修正系数：fP=0.7～0.8。
例如：CBZT-80A性能表4中其中一组参数为：流量30000m3/h、全压370Pa、静压210Pa，对于CBZT80A-Ⅱ型风机不需进行修正，对于CBZT80A-Ⅰ型则需进行如下修正：
流量修正为：30000·fQ。
全压修正为：370·fP。
静压修正为210·f P。
1.Preface
CBZT series explosionproof axial flow fans for marine use are designed and manufactured according to GB11799-89《Marine explosionproof axial flow fans》,and general description and explosion-proof “d” of GB3836-2000《Electrical apparatus for explosive atmospheres》 and 《Rules and regulations for the construction and Classification of Seagoing Steel Ships》.
This series fans have been examined and proved up to standard by Explosion-proof Inspection Authority of the PRC and have got the certificate of inspection. They have also been examined by the Register of ship of China and have got the certificate.
2.Application
The explosion-proof symbol of explosion-proof fans is EdⅡBT4 They can be delivered for gas mixtures or vapour containing combustibles and explosives, for ordinary air, for sea air containing salty fog, for air containing oil fog and other corrupt air supply or extracition.
These explosion-proof fan series are best suited to pum out gas mixtures or vapour containing combustibles and explosives in oil cabins holds, pump-rooms, battery cabins, ammunition cabins, hangars, paint houses ,etc. They can also be used for ventilation of other compartments of ship and corresponding place of land's.
AC 50Hz,380V or 60Hz,440V type YB-H(explosion-insular) for marine use may be mounted on these fans.
3.Operation Conditions
For places where there are explosive gas mixtures of grade Ⅱ B and group T4.
Ambient temperatures:-25℃~+50℃
Relative humidity of the air:≤95%
Cyclical vacillation:22.5°~45° (Vacillation cycle５~１０Ｓ)
Sustained horizontal tilting:１５°
Sustained vertical tilting：１０°
Vibration: existent Shock :existent
4.Structural Types
CBZT type:
There are three structural types :type Ⅰ(deck type),type Ⅱ(pi type) and type Ⅲ(separate cabins type).The construction is spark free.
Type I explosion-proof fan has a hood and an explosionproof motor installed on the top of the machine frame and a wire mesh guard with 2 openings per square inch made of stainless steel, surrounding the frame. The fan is vertically fixed on the deck. It can be delivered for air supply or air extraciton.
Type Ⅱ explosion-proof fan has no hood, built-in type explosion-proof motor is mounted on the housing by the down stream guide vane. It can be installed vertically or horizontally, and can also be installed on the deck. It may be used for pum or sending air.
According to the customers' special requesting, the fan can be made into a separate structure, i.e. the fan and the motor are put in different cabins, with a driving device ,a sealed box and two pairs of flexible couplings. It is used primarily for exhaust of erous compartment.
5.Features
CBZT type:
Explosion-proof, safe and reliable in operation.
Well anticorrosive.
Strongly capable of resisting vacillation,
vibration and shocking.
6.Type Explanation
The type of explosion-proof fans are expssed by the first letter of the Chinese phonetic name, the outer diameter of the vane wheel, the standard speed, and the power of the explosion-proof motor ,etc.
For example:
（CBZT-80A/7.5-1460）I
Where：
C—for marine use
B—explosion-proof
L—centrifugal fan
Z—axial fan
15—the external diameter of the vane wheel in 15cm
80—the outer diameter of the vane wheel 80cm(circle integer)
A—type of the impeller, type A impeller
0.75—the power of the explosion-proof motor 0.75kw
7.5—the power of the explosion-proof motor 7.5kw
2920—standard speed:2920r/min
14600—standard speed:14600r/min
I—the structural type: deck type
7.REMARKS：
The actual performance parameters of typeCBZT-I(deck type)will be deviated from those of typeCBZT-II,in which their impellers are designed and manufactured by the same way. as consequence of its special structure-larger size outlet ,without down stream guide vane, change direction of air flow, resistance caused by wire mesh guard and the rest. After due consideration, the actual performance parameters of typeCBZT-I subject to correction and the method of correction as follows.
correction coefficient of flow rate: fQ =0.8～0.9.
correction coefficient of pssure(total of static pssure): fP =0.7～0.8
for example:
A set of performance parameters of typeCBZT-80A listed in the table 4 is: rate flow:30000m3/h ;total pssure:370Pa;Staic pssure:210Pa.
With due regard for the influence of the special structure, TypeCBZT-80A(I)will be revised as mentioned above; and the result of correction as follows:
Rate flow:30000·fQ
Total pssure:370·fP
Static pssure:210·fP
Those of TypeCBZT-80(Ⅱ)need not be revised.
本公司主要产品有:轴流风机 JCZ (CZ)、CLZ、 CDZ、CDJZ、CZF、JZL、CWZ (CXA)、CZT、FA、T30、 T35; 离心风机JCL (CLQ)、CWL (CXL)、 CQ、CGDL、9-19、9-26、4-72、AZY;防爆风机CBL、CBGD、 CBZ、CBZT、FAX、BT35; 水力驱动驱气风机CSZ、CSL 系列等船用、陆用风机产品及菌形通风筒、鹅颈通风筒、磁力启动器、防火风闸、暖风机、钢质蒸汽散热器、消音器等30余个系列产品，从不同角度、特型满足各类用户的不同需求。
但其压力仅为100～300帕，效率仅为15～25%，直到二十世纪40年代以后才得到较快的发展。 1935年，德国首先采用轴流等压风机为锅炉通风和引风，1948年，丹麦制成运行中动叶可调的轴流风机，旋轴流风机，子午加速轴流风机，斜流风机和横流风机也都获得了发展。能够让人体每时每刻都能呼吸到新鲜，纯净的空气。而普通的通风换气设备用时开不用时关，不仅不能连续不断地进行通风换气。如风机设备在检修后开动时而且没有组织合理的压力场和气流路径。
对风机运转过程中产生的小故障，应查明原因，设法，发现较大故障时，立即停车，及时检修。CZF系列船用轴流通风机（以下简称通风机）在引进日本西芝电机株式会社FP系列船用轴流通风机的基础上进行改进设计制造的，其外形尺寸及性能参数与FP系列风机完全相同，它不仅可替代日本FP系列风机，并且符合船级社船舶建造规范.。
风机应在进口全敞开状态下启动。风机接线后，接线盒处要密封，避免进气，进水。运转过程中要严格控制电机电流，不得超过额定值，否则易烧毁电机。风机的维修在停车时进行。检修后重新启动时，应检查风机各部件是否处于正常状态。防爆电机装在机架上部，整机立式安装在甲板上。II型管道式不带风帽油等而引起有害影响，符合GB4942及IEC34-5规定。
我司船用通风机主要产品目录如下：
CBZ 系列船用防爆轴流通风机…………………………………………………………7
CKW series marine wall mounted duct fan
我公司拥有技术团队和设计团队,品质化的生产工艺,全流程的检测设备,专业化程
