CB/T 3294-1998 Marine Carbon Dioxide Fire Extinguishing Equipment CB/T3294-1998 Standard Download Decompression Password: www.bzxz.net

ICS.47.020.50
Registration No.: 2435-1999
Ship Industry Standard of the People's Republic of China
CB/T3294—1998
Marine carbon dioxide fire extinguishing plant1998-12-29 Issued
1999-06-01 Implementation
CB/T3294—1998
Cited standards
3 Composition and type of device
Component classification
Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Appendix A (suggestive appendix)
CB/T32941998
This standard is based on the International Convention for the Safety of Life at Sea, 1974, 1992 According to the amendments in 2000 and the latest technical requirements of major classification societies, CB'3294.1~1087 was revised and 10 sub-standards were merged into one. In order to maintain the original characteristics and take into account the inheritance and continuity of the standard, the parameters, specifications and dimensions of the revised marine carbon dioxide fire extinguishing device remain unchanged, and appropriate improvements, supplements and additions were made on the original basis. The main changes between this revision and the previous version are as follows: Improved system design, according to the use requirements, added CDE-2 system, and also made appropriate modifications to the original system, improved to CDE-1 system, making it safer, more reliable and practical. Added the structural dimension assembly series of 68L large-capacity gas cylinders and their corresponding supporting equipment. Supplemented a cylinder-type bottle head valve and its structural dimension assembly series. Improve the remote control release station. To make it safer and more reliable, low leakage safety valves are set for both CDE-1 and CDE-2 systems. To ensure the safe evacuation of workers from the fire area, a delay device is set to meet the requirement that the fire alarm should work for at least 20 seconds before the spraying of the fire extinguishing agent. To meet the requirements of the amendment to the International Convention for the Safety of Life at Sea, the control pipeline in the remote control release station is changed from one outlet to two outlets, that is, one of them controls the air control release valve and the other controls the fire extinguishing agent container. Add the specifications of the air control release valve with a diameter of DN25, 32, 40, 50, and 125mm, add the specifications of the B-type check valve with a diameter of DN6mm, and increase the number of nozzles and the specifications of the nozzle diameter of the engine room nozzle with 4-06, 4-a10, and 4-012mm. In order to meet the CCS specifications and system design requirements, a drainage air blocker is added. This standard replaces CB3294.1~10-87 from the date of implementation. Appendix A of this standard is a prompt appendix.
This standard was proposed by the Pipe Accessories Sub-Technical Committee of the National Technical Committee for Standardization of Marine Machinery. This standard is under the jurisdiction of the Comprehensive Technical and Economic Research Institute of China State Shipbuilding Corporation. The drafting units of this standard are: Shanghai Ship Research and Design Institute, 65002 Factory. The participating drafting units of this standard are: Comprehensive Technical and Economic Research Institute of China State Shipbuilding Corporation, Guangzhou Yonghong Valve Factory, Wuhan Marine Accessories Factory,
The main drafters of this standard are: Luo De'an, Shi Aizhong, Guo Xiansheng, Yang Chunlin, Zou Yunhua, Hao Gengchun, Zhang Dewei, Wu Shaozeng. This standard was first issued in 1987.
1 Scope
Ship Industry Standard of the People's Republic of China
Marine carbon dioxide fire extinguishing plant
Marine carbon dioxide fire extinguishing plantCB/T3294—1998
Classification number: u23
Replaces CB*3294.1~10-87
This standard specifies the composition, component classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of marine carbon dioxide fire extinguishing plants.
This standard applies to marine carbon dioxide gas fire extinguishing systems. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. The versions shown are valid at the time of publication of this standard. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB600-91 General technical conditions for ship pipeline valves GB1226-86-General pressure gauges
GB1527-997 Copper and copper alloy drawn pipes
GB3032--89 Marking of ship pipeline accessories GB4396-84 Carbon dioxide fire extinguishing agent
GB8163-87 Seamless steel pipes for conveying fluids
GB833587
Special threads for gas cylinders
GB9112-88
Types of steel pipe flanges
GB91 15.22—88PN15.0MPa(150bar)convex and concave face welding steel pipe flangeCB*56-83 pipe flat shoulder threaded joint
CB821—84
CB*822-84
low pressure pipe threaded joint
high pressure pipe threaded joint
CB1146.2—96
Environmental test and engineering guide for ship equipment
CB1146.3—96
Environmental test and engineering guide for ship equipment
CB 1146.4-96
CB1146.6—96
CB 1146. 796
CB 1146.8--96
CB1146.9—96
CB 1146.11--96
CB1146.1296
Guidelines for environmental testing and engineering of ship equipment
Guidelines for environmental testing and engineering of ship equipment
Guidelines for environmental testing and engineering of ship equipment
Guidelines for environmental testing and engineering of ship equipment
Guidelines for environmental testing and engineering of ship equipment
Guidelines for environmental testing and engineering of ship equipment
Tilt and sway
Vibration (sinusoidal)
CB1146.15-—96
Guidelines for environmental testing and engineering of ship equipment
Waterproof enclosure
CB3023 -84 Nameplates and labels of marine electrical equipment and instruments Approved by China State Shipbuilding Corporation on December 29, 1998 and implemented on June 1, 1999
3 Composition and type of device
CB/T3294-1998
3.1 The composition of CDE-1 type marine carbon dioxide fire extinguishing device (mechanical transmission control type) is shown in Figure 1. Remote control gas pipe (2)
Ren Jin safety width
Pressure gauge
Delay exhaust
External gas source connector
Pressure gauge
Control gas pipe (1)
Engine room control gas pipe
Engine room control gas cylinder
Manifold Www.bzxZ.net
Connect to CO Alarm device and close engine room
Fan. Fuel pump, boiler blower, fuel supply pump and other pressure switches
Safety cabinet
Check and quick connector
Connect compressed air purge pipe
To smoke detector fire alarm
Sampling pipe
CO, release pipe, paint smell
Connect to CO. Alarm device
1 Control and apply Release station: 2-bottle head valve; 3-bottle head valve pneumatic opening device; 4--gas-controlled release flash; 5-three-way conversion valve: 6-release box: 7-gas cylinder and opening device assembly: 8-check valve: 9-drain air blocker: 10-cargo hold nozzle; 11-engine room nozzle CDE-1 type
CB/T32941998
3.2 The composition of CDE-2 type marine carbon dioxide fire extinguishing device (pneumatic control type) is shown in Figure 2. Pressure gauge
Low port safety valve
Control gas pipe (1)
Pressure gauge
Timer
Association meeting
Control gas pipe (2)
Collection pipe
Connect to CO2 alarm device and close engine room
Fan, fuel pump, furnace blower fuel pump and other pressure switches
Safety valve
Check valve and quick connector
Connect to compressed air blowing pipe
To smoke alarm
Line sampling pipe
CO2 release pipe and sampling pipe
Paint room
Connect to CO,Alarm device
1-Remote control release station: 2-Bottle head: 3-Releaser: 4-Air control release: 5-Three-way conversion valve; 6-Release box: 7-Gas cylinder assembly: 8-Check valve; 9-Drainage air blocker: 10-Cargo hold nozzle: 11-Cabin nozzle Figure 2CDE-2 type
Parts classification
4.1 Remote control release station
4.1.1 The basic parameters of the remote control release station are shown in Table 1. CB/T3294-1998
Basic parameters of remote control release station
Control gas source cylinder volume
Working method
The structural type and basic dimensions of the remote control release station are shown in Figure 3. Control gas
Total weight
To release valve non-opening control gas pipe interface
CB/T3294-1998
Remove the box
To the bottle head opening control gas pipe interface
JCE22S
1Sleeper; 2-label: 3-box: 4-right angle stop valve: 5-pressure gauge: 6-bottle head valve: 7-low leakage safety valve; 8-pneumatic delay device: 9-travel switch: 10Bottle head valve opening control gas cylinder: 1 1-Release control cylinder opening Figure 3
Remote control release station
4.2 Bottle head valve
The types and basic parameters of bottle head valve are shown in Table 2
CB/T3294-1998
Table 2 Types and basic parameters of bottle head valve
Bar-supported bottle head valve
Pneumatic bottle head valve
Test pressure Ps
Nominal diameter DN
The structural type and basic dimensions of the bottle head valve are shown in Figures 4 and 5. To discharge pipe M2211.5
Opening force
To CO, total dimension
Dimension 3:25
1-net; 2-safety flag; 3-connection block: 4-operating rod; 5-pull rod; 6-tightening nut; 7-starting block: 3-tightening nut: 9-reading rod Figure 4A type (lever type) bottle head reading
Applicable medium
To CO, main pipe
CB/T3294-1998
To the port to release the congratulations
Taper 3:25
1 Ceramic body; 2-Reading rod: 3-Compression nut: 4-Tightening nut: 5-Pressure arm: 6 Start block; 7-Connection block: 8-Safety diaphragm Figure 5 Type B (pneumatic) bottle head valve
Control gas inlet and outlet
4.3 Bottle head valve pneumatic opening device
CB/T3294--1998
4.3.1 The basic parameters of the bottle head valve pneumatic opening device are shown in Table 3. Table 3 Basic parameters of the bottle head valve pneumatic opening device Working pressure P
Nominal diameter DN
Inner diameter of cylinder
Piston stroke
4.3.2 The structural type and basic dimensions of the bottle head valve pneumatic opening device are shown in Figure 6. o
Control gas outlet
Applicable medium
Control gas inlet
1-wire rope; 2-angle pulley; 3-conduit; 4-connection: 5-sheath; 6-cylinderFigure 6 Pneumatic opening device
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