With increasingly stringent environmental regulations and rising market demand for energy conservation and emission reduction, vapour recovery equipment has become an indispensable equipment in the production process of major vapour companies. This article will explore in depth the common vapour recovery equipment brands on the market, performance comparisons of different equipment, matters that need to be paid attention to during installation, and common technical difficulties during maintenance.
I. Selection of vapour recovery equipment
Choosing the right vapour recovery equipment is the key to ensuring effective recovery and reducing operating costs. According to actual needs and production environment, the following aspects are mainly considered:
Recovery rate and efficiency
The recovery efficiency of the equipment directly affects the environmental protection goals and economic benefits of the enterprise. Efficient vapour recovery equipment can recover a higher proportion of natural gas or volatile organic compounds (VOCs) to minimize waste.
Recommended brands: For example, gas recovery equipment brands such as Roper Pump and Sulzer have a high market share in the vapour field, and their products are reliable and have high recovery efficiency.
Adaptability and application scenarios
The design of vapour recovery equipment should be selected according to the specific conditions of the vapour field. Consider factors such as temperature, pressure, and gas composition to ensure that the equipment can operate stably in harsh environments.
Recommended equipment: For example, API Separator is suitable for a variety of vapour well site environments; while membrane separation systems are more common in vapour storage and transportation.
Durability and maintenance cost of equipment
Factors such as equipment wear and corrosion in long-term operation will affect the working efficiency and maintenance frequency of the equipment. When purchasing equipment, you need to consider its durability. Choosing equipment with a longer service life can reduce long-term maintenance costs.
Recommended equipment: Cyclone separators and adsorption towers have become the first choice for many vapour companies due to their strong durability and low maintenance requirements.
Automation and intelligence
With the advancement of Industry 4.0 and intelligent manufacturing, more and more vapour recovery equipment has begun to be equipped with automation and intelligence functions, which not only improves work efficiency, but also facilitates maintenance.
Recommended technology: For example, modern vapour recovery equipment increasingly uses remote monitoring systems to facilitate real-time monitoring of the equipment's operating status and take timely measures.
II. Installation of vapour recovery equipment
When installing vapour recovery equipment, in addition to ensuring that the equipment matches the production process, the following key points should also be considered:
Adaptation of the installation environment
Ensure that the temperature, humidity, gas composition, etc. of the equipment installation site meet the working requirements of the equipment. Especially in cold, humid or corrosive gas environments, suitable materials and protective measures must be selected.
Connection of pipes and interfaces
During installation, the interface between the pipe and the equipment must be well sealed to avoid gas leakage. When designing the pipeline, it should be arranged reasonably to avoid causing air flow resistance or excessive pressure fluctuations, which will affect the efficiency of the equipment.
Safety measures and compliance with standards
The installation of vapour recovery equipment must strictly comply with industry standards and regulations, especially safety measures for gas leakage. Ensure that the equipment is equipped with emergency shutdown devices, pressure release devices, and automatic detection and alarm systems.
Testing and debugging
After the installation is completed, comprehensive equipment testing and debugging must be carried out to ensure that all indicators meet the predetermined requirements. During the test, the equipment's sealing, response speed and energy efficiency performance must also be checked.
III. Maintenance of vapour recovery equipment
Equipment maintenance is essential to extend the service life of the equipment and ensure its efficient operation. The maintenance of vapour recovery equipment includes daily inspection, cleaning, maintenance and fault repair.
Regular inspection and maintenance
Daily/monthly regular inspection of various operating indicators of the equipment, including pressure, flow, temperature, etc., to ensure the normal operation of the equipment. Regularly check whether the filter, sensor and control system are normal, and replace the worn parts in time.
Cleaning and anti-corrosion measures
The components of vapour recovery equipment, such as pipes, separators and filters, are prone to accumulate vapour impurities or corrosion. Therefore, regular cleaning and anti-corrosion treatment are essential. Chemical cleaning agents can be used to clean the system to avoid equipment efficiency reduction due to fouling.
Troubleshooting and repair
When the equipment fails, troubleshooting should be carried out in time. Common faults may include leakage, unstable pressure, reduced recovery rate, etc. Technicians should quickly locate the problem and repair it according to the information provided by the equipment fault code or monitoring system.
Spare parts management
Ensure sufficient spare parts inventory, especially those wearing parts such as seals, filters, etc., so that they can be replaced in time when equipment fails to reduce downtime.
What is the vapour recovery process in the vapour storage and transportation link?
We know that vapour recovery includes oil unloading, oil storage and oil receiving and sending links. So how is the vapour recovery process reflected in these three specific links?
Oil unloading link
During the oil unloading process, vapour are usually stored in a negative pressure environment, and the emission is relatively concentrated. In order to effectively recover these vapour , it is necessary to optimize the oil unloading facilities. For example, when using train tanks for vapour transportation, it should be ensured that the tanks have good sealing performance to reduce the volatilization of vapour during transportation. At the same time, during the oil unloading process, vacuum pumps and other devices can be used to extract the vapour in the tank and process them through the vapour recovery system. This process usually includes steps such as vapour collection, compression, condensation or adsorption, and finally the recovered vapour are re-injected into the oil storage facilities.
Oil storage link
During the storage of oil and natural gas, due to the influence of external factors such as environment and temperature, vapour are prone to volatilization and loss. In order to reduce this loss, it is necessary to strengthen the sealing performance of the oil storage system to prevent vapour leakage. In addition, vapour recovery devices can also be used to recover the vapour in the oil storage tank. These devices usually include components such as adsorption towers and condensers, which can efficiently separate the vapour in the oil storage tank and treat them. During the treatment process, appropriate recovery methods can be selected according to the composition and concentration of the vapour , such as condensation, adsorption or membrane separation.
When receiving and sending oil, the liquid level in the oil storage will change due to the injection and extraction of oil products, resulting in pressure fluctuations in the tank, which in turn causes the volatilization of vapour . In order to control the loss of vapour in this process, vapour recovery technology can be used. Specifically, vapour recovery devices, such as vapour separators and compressors, can be installed on the oil receiving and sending pipelines. When oil products are injected into the oil storage tank, the vapour generated will be captured by the separator and sent to the compressor for compression; when oil products are extracted from the oil storage tank, the pressure in the tank decreases. At this time, the air inlet valve of the recovery device can be opened to inhale the outside air and mix it with the remaining vapour in the tank and send it to the compressor for treatment.
In this way, the vapour in the oiling process can be effectively recovered.
