Reinjection water treatment in oil fields plays an important role in ensuring efficient and stable operation of oil fields. In oil fields, some of the crude oil extracted is mixed with underground water resources. This part of the water, which we usually call produced water, needs to be effectively treated so that it can be reinjected into the oil field. In this process, the role of the tube-type automatic backwash filter is particularly important. Here are some relevant points to understand:

1. Efficiently remove solid impurities: The tubular automatic backwash filter has high-efficiency filtration capabilities and can remove various solid impurities in the return water, including oil, gravel, sediment, etc. Through high-efficiency filtration, the cleanliness of reinjection water is ensured and oil wells are prevented from clogging.

2. Automatic backwash function: The tubular automatic backwash filter is designed with an automatic backwash system, which can automatically clean and remove accumulated impurity particles in the filter element, thereby achieving continuous filtration and maintaining the stable operation of the filtration system. This function can significantly reduce maintenance workload and improve work efficiency.

3. Protect oilfield equipment: The clean quality of reinjection water directly affects the service life and oil production efficiency of oilfield production equipment. High-efficiency filtration through the tube-type automatic backwash filter can effectively prevent equipment corrosion and mechanical wear, improve equipment life, and ensure the efficiency of oil field exploitation.

4. Improve the reinjection effect: The water treated by the tubular automatic backwash filter is clean, and impurities such as sand and gravel are effectively controlled, which is conducive to improving the reinjection effect, maintaining oil layer pressure, and achieving high-efficiency oil extraction.

5. Cost saving: The tube-type automatic backwash filter is easy to operate and has low maintenance costs. Thanks to its automatic backwash design, the filter element replacement cycle is long, which greatly reduces operating costs.

All in all, the tube-type automatic backwash filter is a very critical link in the treatment of reinjection water in oil fields. It plays a very important role in ensuring the quality of reinjection water, improving the production efficiency of the oil field, and extending the service life of the equipment.

A more detailed description of the working principle of the tube-type automatic backwash filter is as follows:

1. Liquid enters the filter: When the tubular automatic backwash filter starts working, the liquid to be filtered will first enter the filter inlet. The liquid inlet main pipe introduces fluid evenly into each filter unit for the next filtering operation.

2. Solid particle filtration: The filter uses surface filtration, which means that the liquid is guided through the filter element. Solid particles larger than the filter hole size are trapped by the outer surface of the filter element, like a fine sieve. These solid particles will gradually accumulate at the bottom of the filter element.

3. Automatic backwash: As solid particles accumulate, the internal pressure of the filter will gradually increase. When the pressure reaches a predetermined pressure drop or a predetermined time expires, the filter's automatic backwash mechanism is triggered. The backwash system will generate a high-speed reverse flow of water to thoroughly clean the inside and outside of the filter element, flush away the trapped particulate impurities, and then discharge the filter through a specific outlet.

4. Filter design: The design of the tube-type backwash filter is unique. The structure adopts a tube-type layout, so that the entire filtration system can be divided into multiple groups. Each set of filters consists of several filter elements, and each filter element can independently complete filtration and backwash operations. This design not only improves the filtration efficiency, but also does not affect the normal operation of the system during backwashing, achieving continuous filtration.

5. Continuous filtration: The tube-type automatic backwash filter can monitor the pressure difference of the filter element in real time and trigger backwash according to the set parameters, thereby maintaining continuous filtration of the system. Moreover, the backwash process only acts on part of the filter elements, and the other filter elements work normally, so that the system does not affect the normal filtration operation during the cleaning process.

In summary, the working principle of the tube-type automatic backwash filter can effectively ensure the stability of water quality, extend the service life of the filter element, and reduce the operation and maintenance costs of the system.

The advantages of in-tube automatic backwash filters include:

1. Continuous filtration and cleaning: The tube filter design with automatic backwash function is equipped with a system that can provide continuous filtration. When some filter elements are backwashed and cleaned, other filter elements can still maintain normal operation, so the filtration operation will not be interrupted. This design allows the flow of fluid into the filter to remain smooth under all conditions.

2. Easy maintenance and high economic benefits: The tubular backwash filter has a self-cleaning function. It only requires regular inspections of the control system and does not require frequent manual cleaning and maintenance, which greatly reduces maintenance costs and manual operation time. In addition, because the filter element has a long life and low replacement frequency, it can significantly reduce operating costs over a long period of time.

3. High backwash efficiency and low water consumption: This filter greatly shortens the backwash cycle by optimizing the backwash design, thereby reducing the amount of water required. During the backwashing process, the cleaning is fast and comprehensive. The cleaned filter element will return to its optimal filtration state, ensuring that its filtration efficiency continues to be optimal.

4. Modular design: The tube-type backwash filter adopts a modular structure design, and an appropriate amount of filter elements can be configured according to actual needs. This design not only provides great installation and expansion flexibility, allowing users to choose appropriate equipment according to actual needs, but also effectively avoids problems with a single component that will affect the work of the entire system.

5. High stability and safety: If a certain filter cartridge in the filter fails or is worn, the other filter cartridges can still work normally, and the operation of the entire system will not be greatly affected. Therefore, this design improves The stability and security of the entire system.

In summary, the tube-type automatic backwash filter emphasizes practicality, economy and efficiency. Its various advantages enable it to play an important role in various application scenarios, whether it is industrial production or domestic water.

The reason why the automatic backwash filter in the tube can be maintained and operated at a lower cost is mainly due to its unique design advantages. The following is a detailed explanation:

1. Automatic backwash: This is one of its important functions. In the in-tube automatic backwash filter system, each filter element is equipped with a sensitive differential pressure switch or timer. When the pollutants filtered by the filter element accumulate to a certain extent, or the pressure difference between the inlet and outlet of the filter element reaches the set value, the system will start an automatic backwash process. During this process, some filter elements will stop filtering and perform backwashing instead, while other filter elements will continue to maintain filtering operation, achieving both cleaning and uninterrupted output functions. This avoids frequent and manual operations, reduces manual participation and frequency, and reduces the resulting labor costs.

2. Long service life of the filter element: The filter element of the tubular automatic backwash filter is generally made of special materials that are wear-resistant, corrosion-resistant, and have high structural strength, which allows the filter element to be used for a long time without replacement. Because the main maintenance cost of the filter mainly lies in the replacement of the filter element, extending the service life of the filter element will undoubtedly greatly reduce maintenance costs.

3. The system design is comprehensive and highly stable: the system design of the tubular automatic backwash filter takes into account the various complex situations that may be encountered in the workplace. Even if there is a problem with a certain filter element, the entire system will not stop. run. This high degree of adaptability and self-adjustment greatly reduces the need for frequent manual intervention and also reduces the cost of maintenance.

4. Automated control: The biggest advantage is that except for starting up and shutting down, there is almost no manual operation required. Therefore, very little manpower is required, which directly reduces its operating costs.

5. Modular design: The modular filter element can be replaced independently, and the work of the filter will not be affected during the replacement process. Therefore, the workload of replacing the filter element is reduced, and the cost is also reduced accordingly.

Conclusion: Due to the design and structural advantages of the tubular automatic backwash filter, it can effectively reduce maintenance and operation costs during use, greatly improve work efficiency, save manpower and material resources, and reduce operating costs, especially Suitable for occasions requiring large-scale and long-term operation.

The filter element of the tubular automatic backwash filter may be made of a variety of special materials. Analyze the characteristics of various materials:

Brass: Brass is an alloy of copper and zinc. It is characterized by high strength, high hardness, and compared to pure copper, brass has good corrosion resistance. The excellent pressure resistance of the brass filter element makes it difficult to be damaged in filtration environments with large pressure differences, and brass can maintain its structural stability in most liquid and gas media. Brass filter elements are generally used in places where the environment is mild and corrosion requirements are not strict, such as water treatment, food industry or petrochemical industry.

Stainless Steel: Stainless steel is a corrosion-resistant iron-based alloy. Its heat resistance, corrosion resistance and high strength make it an ideal material for manufacturing filter elements. Stainless steel filter elements are particularly suitable for filtration of liquids with high temperature, strong acidity, alkalinity or strong corrosiveness. In the food industry, pharmaceutical industry and even the nuclear industry, its excellent heat resistance and oxidation resistance are unmatched by other materials, and the stainless steel filter element has high mechanical strength and can withstand large flow and high-pressure filtration operations.

PA and PE: PA (nylon) and PE (polyethylene), two plastic material filter elements, perform well in low-temperature applications. They have good corrosion resistance, impact resistance and good elasticity, and are suitable for long-term use in mild environments. . Plastic filters are lightweight, easy to install and replace, and relatively low cost. However, these plastic filter elements are not as good as metal filter elements in terms of resistance to high temperatures and chemical corrosion, so their application range is relatively small.

Alloy steel and Monel alloy: In extreme industrial environments, such as high temperature, high pressure, strong acid and alkali or toxic environments, high-performance materials such as alloy steel or Monel alloy are generally used for filter elements. These materials have excellent corrosion resistance, oxidation resistance and thermal stability, and can maintain the stability of their physical and chemical properties in the most difficult environments. Although the cost of this filter element is relatively high, its long service life and stable performance give it unparalleled advantages in special environments.

The tube-type automatic backwash filter can choose different filter element materials according to the specific use environment and filtration needs. When selecting filters and filter elements, it is important to consider their physical and chemical properties to ensure that the filter element can effectively complete the filtration work in a specific environment without damaging or reducing the filtration effect due to reactions.