1. APPLICATION
CWL（CXL） series small marine centrifugal fans is capable of blowing air, ocean air containing salt vapour, and corrosive air which contains oil vapour.
It can be used for ventilation of kitchen, toilet, wardrobe, meeting room and each cabin, as well as other suitable place land chemical industry and metallurgy.
This series fans with Explosion-proof motors can delivered gas mixtures or vapour containing combustibles and explosives, it can run normally at danger field.
CWL（CXL） series fans fit with Marine three-phase tiny asynchronous motors. Its power can be 380/220V and 50/60Hz.(For some specific fans with YB series motor, its power can’t be 220V).
2. STANDARD
2.1. Conformed to the prescription of GB11799-89 MARINE EXPLOSION-PROOF FAN TESTING, TECHNIC DEMAND, CHECK AND ACCEPT.
2.2. Conformed to the prescription of THE MARINE USE DEMAND OF CHINA SHIP INSPECT OFFICE STEEL SHIP ENTRANCE DEGREE AND BUILD STANDARD.
2.3.Conformed to the prescription of THE WARSHIP USE DEMAND of THE CPLA SHIP BUILD STANDARD.
3. CHARACTERISTICS
3.1. High parameter of pressure (H>1.4), high parameter of capacities (Q>0.5), high efficiency (η>65).
3.2. Light in weight, small in size, reliable in operation, low noise.
3.3. Performance parameter is various and application field is wide.
3.4. High strength, good anticorrosion.
3.5. Strong resistance against swing, vibration and impact.
4. WORKING CONDITION
Ambient temperature : -25～+55℃
Max relative humidity : 95%
Periodical swing : 45°
Sustained horizontal swing: ±15°
Sustained vertical swing : ±10°
Vibration : existent
Shock : existent
5. WORKING PRINCIPLE AND STRUCTURE TYPE
The CWL（CXL） series marine small centrifugal fans are a kind of high efficiently fans. They are equipped with marine three-phase tiny asynchronous motors. The impellers of fans are consisting of strong foreword poly blades. The air enter the blade-passage from axial direction and produce energy by the centrifugal force, it is compressed and enter the pipeline from radial direction.
The CWL（CXL） type fan is horizontal structure type, the impeller is mounted directly on the motor shaft.
The impeller is rivet jointed structure and the casing and entrance are welded structure.
The impeller must be correct by static and dynamic balance (adopted the method of adding weight.)
The fan can be made for left or right rotation:
Left rotation –viewed from the motor side, the impeller rotates anti clock-wise and indicated as “L”; right rotation-viewed from the motor side, the impeller rotates clock-wise and indicated as “R”.
CWL（CXL） series small marine centrifugal fans is capable of blowing air, ocean air containing salt vapour, and corrosive air which contains oil vapour.
It can be used for ventilation of kitchen, toilet, wardrobe, meeting room and each cabin, as well as other suitable place land chemical industry and metallurgy.
This series fans with Explosion-proof motors can delivered gas mixtures or vapour containing combustibles and explosives, it can run normally at danger field.
CWL（CXL） series fans fit with Marine three-phase tiny asynchronous motors. Its power can be 380/220V and 50/60Hz.(For some specific fans with YB series motor, its power can’t be 220V).
2. STANDARD
2.1. Conformed to the prescription of GB11799-89 MARINE EXPLOSION-PROOF FAN TESTING, TECHNIC DEMAND, CHECK AND ACCEPT.
2.2. Conformed to the prescription of THE MARINE USE DEMAND OF CHINA SHIP INSPECT OFFICE STEEL SHIP ENTRANCE DEGREE AND BUILD STANDARD.
2.3.Conformed to the prescription of THE WARSHIP USE DEMAND of THE CPLA SHIP BUILD STANDARD.
3. CHARACTERISTICS
3.1. High parameter of pressure (H>1.4), high parameter of capacities (Q>0.5), high efficiency (η>65).
3.2. Light in weight, small in size, reliable in operation, low noise.
3.3. Performance parameter is various and application field is wide.
3.4. High strength, good anticorrosion.
3.5. Strong resistance against swing, vibration and impact.
4. WORKING CONDITION
Ambient temperature : -25～+55℃
Max relative humidity : 95%
Periodical swing : 45°
Sustained horizontal swing: ±15°
Sustained vertical swing : ±10°
Vibration : existent
Shock : existent
5. WORKING PRINCIPLE AND STRUCTURE TYPE
The CWL（CXL） series marine small centrifugal fans are a kind of high efficiently fans. They are equipped with marine three-phase tiny asynchronous motors. The impellers of fans are consisting of strong foreword poly blades. The air enter the blade-passage from axial direction and produce energy by the centrifugal force, it is compressed and enter the pipeline from radial direction.
The CWL（CXL） type fan is horizontal structure type, the impeller is mounted directly on the motor shaft.
The impeller is rivet jointed structure and the casing and entrance are welded structure.
The impeller must be correct by static and dynamic balance (adopted the method of adding weight.)
The fan can be made for left or right rotation:
Left rotation –viewed from the motor side, the impeller rotates anti clock-wise and indicated as “L”; right rotation-viewed from the motor side, the impeller rotates clock-wise and indicated as “R”.
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