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CPFG（combined pressurization fire&gas system) is a complete suite of intelligent booster control systems, typically used in positive pressure containers, with gas detectors, smoke detectors, heat detectors, fire alarms, pressure switches, flow switches, booster fans, emergency stop & alarm mute switches, and other explosion protection equipment.
The CPFG is also connected to a power distribution board, which will be connected by non-explosive devices inside the container, such as sockets, fume hoods, computers, water heaters, etc.
When the power is turned on, the CPFG turns on the booster fan to purge the inside of the container to positive pressure. This prevents dangerous gases entering from outside. When the environment inside is safe, the DB (distribution board) will start up and the internal non-explosive electrical equipment can be used normally. The DB cannot be started if the environment inside the container is not secure.
During operation, if dangerous gases are detected in the container or the positive pressure cannot be maintained, the alarm system will sound an alarm and issue a warning. If the control conditions in the container are not met within the specified time, the non-explosive device is automatically turned off. Therefore, the general equipment in the container is suitable for blast protection purposes.

ROV stands for Remotely Operated Vehicle; ROVs are unoccupied, highly mobile underwater machines that can be used to explore the depths of the ocean while being operated by a person on the surface.
Remotely operated vehicles (ROVs) allow us to explore the ocean without actually being in it. These underwater machines are usually controlled by a person on a surface vessel, using a joystick in a similar way to play a video game. A set of cables or tethers connects the ROV to the ship, sending electrical signals back and forth between the operator and the vehicle.
ROVs have made exploration of several deep-sea gas and oil reserves much easier because many oil reserves are difficult for divers to find.
Precisely because of the uses and characteristics of ROVs, the TLS ROV cabin is designed to provide personnel with the facility to operate the ROV in a safe, comfortable, and climate-controlled environment.
 
The TLS ROV cabins are equipped to a high standard and specification. We can design the equipment requirements internally to your specifications to achieve the most space efficient layout. Units can be modified or customized to meet customer requirements.
The TLS ROV cabins have the following standard specifications:

• Description: A60 rated, Zone1/Zone2 cabin (for offshore application)
• Structural Rating: DNV 2.7-1/EN12079
• Hazardous Area Classification: Zone1/Zone2

When the container is in automatic mode, the system will display different detection states for different detection conditions.

• When alarm for Gas low concentration（≥10%LEL: < 15%LEL) and H2S low concentration （≥8pprn: < 20ppm) and H2 low concentration（≥10%LEL; <15%LEL) and O2 low concentration(≤19%), the corresponding indicator light of "gas/H2S/H2 low concentration alarm indication" and "O2 leak alarm indication" is on; Explosion-proof sound and light will alarm; the fan will keep running and the air change timing is suspended

        When the alarm is removed, the ventilation will continue automatically.

• When alarm for low differential pressure(<50Pa), Sound and light alarm will be sent out after 10s delay, and the indicator light of ”pressure loss alarm" will be on; If the differential pressure is restored within 60s, the ” pressure loss alarm” indicator light will be off, the alarm will be relieved and the ventilation process will continue; After 60 seconds, the fan power supply will be cut off,  the ventilation process will stop, sound and light alarm, unable to enter the ”safe power supply” state.

• When alarm for Gas (≥15%LEL: <60%LEL) / H2S（ ≥20ppm）/ H2 (≥ 15%LEL) high concentration , and fire alarm (smoke detector、heat detector、MCP) and local ESD signal will be received, the power supply of the fan will be cut off, and the ventilation process will stop.

CPFG Systems offers a range of systems, together with Remote I/O manufacturers, suitable for hazardous and safe areas, either as a combination of both, or as zone of operation specific systems.

• Designed to be user friendly.
• Significant cost savings in hardware and wiring.
• Reduced cabling.
• Reduced cabling consumption (ducts, seals, penetrations, etc.).
• Reduced on-site installation time for personnel.
• Factory acceptance testing of systems.
• Reduced design time.
• Reduced on-site maintenance.
• No need for local instrumentation to aggregate signals.

As early as the 1950s, the motor center was widely used by the automotive industry to control manufacturing, and many industrial motor companies used motor control center to install directly and other equipment at the location center. Although many motor control centers（MCCs） are located directly on the factory floor, there are additional benefits to having the motor control center located in the shell of a shipping container.

• Protect the motor control center, which can improve it to a certain extent and prolong the service life of the internal equipment of the motor under the condition of no interference and operation under the temperature, and improve the operation efficiency of the whole system.​
• The outer shell of the shipping container is more convenient for transportation and transfer, and the installation is convenient and fast, which provides possibility for temporary call or emergency replacement.​
• The traditional work of MCC system and maintenance is simplified. The containerized motor control center usually carries out integrated control on the assembled equipment. The monitoring and regulation of the system also improves the efficiency of daily maintenance and use.​
• Because of the protection from the shell, motor control center for the environment becomes less demanding, TLS provide containerization motor control center housing can be according to your requirements designed to conform to the DNV2.7-1, A60 fire, IECEx | ATEX explosion-proof, can be used in ZONE1 | ZONE2 environmental standards.

Any more discussion about the containerized motor control Center| motor control center housed in a shipping container, please contact us.

​Motor control center (MCC) shelters consist of single or multiple electrical units, which are combined to meet larger application needs. These components allow engineers to control electric motors from a central location, such as a mechanical or electrical room.
MCCs are typically found in large commercial or industrial buildings and typically contain motor starters, circuit breakers, programmable controllers, metering devices, etc. MCCs may be used in any facility that operates a large number of electric motors.
There is always the possibility or risk of fire or explosion when MCCs are used in, around or near flammable gases or vapors, flammable liquids, flammable dust, flammable fibers or droplets.
The MCC shelter provided by TLS integrates sensors, fire and gas systems, intelligent PLC, fire dampers, air conditioners, etc. in a positive pressure container environment, which helps isolate the control systems in the MCC shelter from the external hazardous environment and facilitates the operation of surrounding systems. Increase the safety factor of the construction environment.
The MCC shelter provided by TLS can meet DNV2.7-1| EN12079, pass third-party certification such as CCS and BV, and can be customized according to customer‘s requirements, which can also be used for Power control centre (PCC), Variable speed driver (VSD), Variable Frequency Drive (VFD) shelter. 

​Any requirements, please contact us directly:
E-mail: sales@tls-containers.com 
Hotline: +65-65637288; +65-31386967

In environments such as offshore oil platforms, chemical processing plants, floating vessels, floating production storage and offloading (FPSO), most of the electrical and instrumentation facilities inside movable offices, container houses, etc. cannot satisfy the explosion-proof requirements of hazardous areas, the positive pressure mode can block the dangerous flammable gas out of the container, so as to achieve the overall explosion-proof function.
 
The principle of positive pressure explosion-proof container is to transport "clean and safe" air from a distance into the container through the air duct, "wash" the air in the container and maintain the pressure difference in the container, so as to ensure that the non-explosion-proof electrical equipment in the container is in the Safe area"to achieve the purpose of explosion-proof.

The positive pressure container provided by TLS meets DNV2.7-1, IEC60079-13:2017, and A60 fire rating, and can be used in ZONE2| ZONE1 area.
The built-in CPFG control system integrates PLC control system with man-machine interface and peripheral equipment. 
The Positive pressure explosion protection and fire control system mainly includes the following main functions:

• Monitoring and control of positive pressure explosion-proof system;
• Detection and monitoring of fire | flammable gas | toxic gas | sound and light alarm;
• Real-time monitoring display system alarm and fault status, and keeps historical records, and provides system alarm and fault signal to the remote central control system.
• The system automatically controls the shutdown of the output safety power supply | emergency shutdown | accepts remote shutdown control and other functions.

The operation modes of the control system are: positive pressure operation mode, bypass operation mode and manual emergency output power supply selection operation mode. Different operation modes can be easily selected according to the needs of the use site to achieve the purpose of safe and reliable operation of the system, convenient system maintenance and fast power supply.

Modules are strictly regulated in all operating environments involving offshore drilling, MWD or LWD. In ZONE 1 and ZONE 2, select different modules for different purposes.
Our portable modules are manufactured according to the International Maritime Organization safety of Life at Sea (SOLAS). Our design and manufacturing processes, including design and inspection, are certified by other third party classification societies

Many portable accommodation and industrial modules are designed for use in zone 1 or zone 2 areas. The two areas are classified as follows:
Zone 1 refers to "the combustible concentration of flammable gases or vapors that may be present under normal operating conditions".
Zone 2 refers to "an environment where such flammable concentrations are unlikely under normal conditions, but if they do occur, they occur only for a short time".

We have extensive experience and knowledge in providing safe and highly customized solutions to our customers in the offshore drilling industry. Our modules are available in a variety of configurations and sizes to meet the needs of various customer platforms, including weight limits and space limitations.
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If you want to know more about our products, please contact us for further information.