● The system conducts continuous online detection of oil and gas concentration, oxygen concentration, lower explosion limit and upper explosion limit in the sealed space through a dedicated oil and gas online analyzer, and comprehensively monitors the safety status of the storage tank.
● When the concentration of volatile oil and gas reaches the danger warning value, the system starts cryogenic purification, continues to purify volatile oil and gas, so that the sealed space returns to the essential safety state. Cryogenic purification using -80℃ cryogenic process, no molecular sieve adsorption, simple maintenance, low operating costs.
● The system fully recycles and utilizes the waste gas after monitoring and purification to realize no exhaust outlet in the whole process and completely realize zero pollution control.
● The system makes the sealed space micro-negative pressure, which eliminates the unorganized leakage of VOCS on the top of the tank, and meets the requirements of the national standard of VOCS governance.
● The system can automatically monitor the leakage of the sealed space, when the sealing ring seal failure, the system automatically alarm.
● The system is equipped with inerting protection device, which can be started for inerting protection in emergency.
● The system realizes automatic unattended operation and remote maintenance functions.
● The system adopts advanced floating sampling device, which can be installed and constructed when the storage tank is in service with oil.
● The system is suitable for the external floating roof tank for storing all kinds of petrochemical products.
● The system is designed and manufactured according to the explosion-proof design specification to meet the explosion-proof requirements.
| Sampling system | |
| Number of probes | 4~8 channels |
| Sampling pipe diameter | 3/8 ", material: SS304 |
| Pretreatment function | self-cleaning and filtration, automatic calibration, automatic back blowing |
| On-line monitoring system | |
| Measurement parameters | O2；TCH； LEL |
| Measuring range | O2:0-25%；TCH:0-100%； LEL:0-100%；UEL:0-100% |
| Measurement accuracy | O2:±1%；TCH:±2%；LEL:±5%；UEL:±5% |
| Oil and gas purification system | |
| Purification method | compression condensation method |
| Cooling temperature | -80℃ |
| Oil and gas processing capacity | 20Nm3/h |
| Inerting protection system | |
| Inerting mode | intermittent inerting |
| Inerting completion time | 10-30 minutes/can |
| Nitrogen consumption | ≤ 40Nm3/tank/day (calculated by 100,000 square tanks) |
| Other parameters | |
| VOCS governance efficiency | 100% |
| Pollution source emission | Zero emission |
| Maximum system configuration | Each system can control 2-6 storage tanks |
| Power supply | 380VAC |
| System power consumption | minimum 5KW, maximum 20KW (automatically adjusted according to oil and gas concentration) |
| Explosion-proof grade of the whole machine | ExdⅡBT4 |
| Overall dimensions | Max. : 10500L×2500W×2700H(according to tank configuration and capacity) |
● Various sizes of external floating roof storage tanks;
● The medium is crude oil, steam coal, methanol, benzene, ethylene glycol and other petrochemical products.
Related products
