Explosion-proof crude oil water content tester (centrifugal method)

Since the introduction of centrifuges into China's petroleum industry in the late 1980s, they have been widely used in major oil fields across the country. With the frequent occurrence of safety accidents in the petroleum and chemical industries, there is a high degree of emphasis on the safety of equipment used. Our company specializes in the production of petroleum equipment and has dedicated itself to the research and development of centrifuge equipment. In 2017, we developed and manufactured the FBHSCDQ/10-50 series explosion-proof water content tester (centrifugal method).

Compared with similar products, the explosion-proof water content tester (centrifugal method) uses 304 stainless steel for all parts that come into contact with materials, and all stainless steel outer surfaces are polished. The welds undergo 100% non-destructive testing. The design incorporates a frequency converter and an independent control cabinet (containing a frequency converter, braking resistor, and electrical components) for the electrical and control systems, a directly connected explosion-proof motor, and an explosion-proof button. The control cabinet is installed in a non-explosion-proof area, and an explosion-proof button is provided at the work site. This fundamentally addresses the safety hazards posed by the equipment.

The explosion-proof water content tester (centrifugal method) is a commonly used vertical high-speed centrifuge in the petroleum and chemical industries. This series of centrifuges features a simple structure, reliable performance, convenient operation and maintenance, and explosion-proof safety. It is widely used in petroleum, chemical, medical, environmental protection, and research institutions.

Explosion-proof inspection basis:

GB 3836.1-2010 Explosive atmospheres - Part 1: Equipment - General requirements

GB 3836.2-2010 Explosive atmospheres - Part 2: Equipment protected by 'd' type of enclosure (increased safety)

GB 3836.3-2010 Explosive atmospheres - Part 3: Equipment protected by 'e' type of enclosure (increased safety)

GB 3836.9-2014 Explosive atmospheres - Part 9: Equipment protected by 'm' type of enclosure (intrinsic safety)

Product implementation standards:

GB7779-87 Centrifuge model compilation method

GB10901-89 Centrifuge performance testing method

GB4774-84 Terminology for centrifuges and filter machines

JB 8525-1997 Centrifuge safety requirements

JB/T 8051-96 Calculation standard for centrifuge drum strength

Explosion-proof inspection items:

Overall structure inspection

Maximum surface temperature test

Thermal shock test

Heat and cold resistance test

Impact resistance test

Shell protection performance test

Shell pressure resistance test

Internal ignition non-propagation test

Compact size, saves space.

All-steel structure, stainless steel centrifuge chamber.

Brushless DC motor drive, smooth and quiet operation.

Touch panel, large screen LCD display.

Parameters can be changed at any time during operation without stopping.

Automatically calculates and synchronously displays the centrifugal force RCF value.

Equipped with a dedicated momentary button for short-time centrifugation.

Multiple sets of program storage space, PLC control, users can freely program and call.

The motor, frequency converter, resistor, and electrical components are sealed in an explosion-proof box, suitable for flammable and explosive environments.

Uses an explosion-proof touch panel, making the equipment safer and more reliable.

Fault self-diagnosis system. When overspeed, loss of speed, overheating, or abnormal opening of the door cover is detected during operation, the machine immediately decelerates and stops, improving instrument safety performance.

Precautions for use

A. Before connecting the power

Before each use, carefully check the rotor and centrifuge tubes for cracks or severe corrosion. If any are found, replace them immediately. Keep the centrifuge chamber clean and free of water, and prevent granular debris or other foreign objects from entering. The rotor system must be assembled with the power off. During transportation, the rotor and hanging cups must be removed from the inner bucket and packaged separately. The power voltage used must be the same as the input voltage specifications of the instrument, i.e., single-phase 220V 50Hz, and ensure that the power input terminal has a protective grounding wire.

B. During use

Short-term vibration during acceleration or deceleration is normal and does not require turning off the main power switch or the "stop" button on the control panel. If a power failure occurs or the main power switch is forcibly turned off, do not open the door immediately. Wait until the motor stops (approximately 5-10 minutes) before opening the door. If an imbalance occurs (excessive vibration), the centrifuge will automatically stop and emit a rapid alarm. After 1-2 minutes, turn off the power and open the door to check the cause. After each parameter setting is complete, press the "ENT" key to confirm.

After each centrifugation process, the centrifuge will wait for the user to open the door to take samples. If the door is not opened and centrifugation continues, the instrument will not respond.

C. After use, care should be taken to protect the instrument, especially the rotor and centrifuge tubes, to prevent contamination by acid-base liquids and corrosion.

D. The instrument should not run continuously for more than 60 minutes at a time.

Precautions for the use environment

To ensure the stable and reliable operation of this instrument and its normal function, the following conditions must be met:

Ambient temperature: 0℃～80℃

Relative humidity: ≤80%

Power voltage: 220V±22V, 50Hz±1Hz

Good ventilation, free from dust, flocculent materials, metal shavings, and other debris entering the machine.

Protection against corrosive gases and strong electromagnetic interference.

Use on a stable, horizontal work platform to prevent vibration.