Stainless steel composite ceramic tubular membrane module for treating high-temperature oilfield sewage

Abstract

The utility model discloses a stainless steel composite ceramic tubular membrane component for treating high-temperature oilfield sewage, which relates to the technical field of composite ceramic tubular membrane components, and comprises a membrane element and a stainless steel shell, the membrane element is formed by loading a ceramic membrane on a stainless steel filter membrane, and the membrane element is connected with the stainless steel shell through direct welding. The ceramic membrane structure is loaded on the stainless steel filter membrane, so that sewage treatment in a high-temperature environment is realized, meanwhile, the problem of failure of an adhesive is avoided in a direct welding manner, and the problems of durability and reliability of the sewage treatment assembly in the high-temperature environment are solved. The ceramic membrane has good separation performance, the design of the ceramic membrane further improves the filtration precision of the sewage, high-precision sewage separation can be realized, and suspended solids and oil substances in the sewage can be effectively removed.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular membrane components, in particular to a stainless steel composite ceramic tubular membrane component for treating high-temperature oilfield sewage. Background Art

[0002] During oilfield development, as mining depth and scale increase, large quantities of high-temperature oilfield wastewater are generated. This wastewater has several notable characteristics: high water temperature, typically exceeding 80°C; high salinity, often containing large amounts of soluble salts such as sodium chloride; high oil content, resulting in a high oil-water mixture ratio; high suspended solids content, often containing particles such as silt and oil residue; and a large number of complex chemicals, such as surfactants, antioxidants, and descaling agents. These factors make the treatment of oilfield wastewater extremely challenging and place very high demands on wastewater treatment equipment.

[0003] Traditional wastewater treatment methods primarily include physical sedimentation, chemical flocculation, biological treatment, and conventional membrane separation technologies. However, these technologies face numerous challenges when treating high-temperature oilfield wastewater. For example, due to material limitations, traditional membrane modules are prone to failure in high-temperature and high-salinity environments, resulting in reduced treatment efficiency or equipment damage. Furthermore, the complex nature of the oil and chemical substances can easily lead to membrane fouling, reducing equipment life and separation efficiency. High-temperature wastewater also exacerbates equipment corrosion, placing higher demands on equipment durability.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide a stainless steel composite ceramic tubular membrane component for treating high-temperature oilfield wastewater, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides a stainless steel composite ceramic tubular membrane assembly for treating high-temperature oilfield wastewater. The membrane assembly includes a membrane element and a stainless steel shell. The membrane element is composed of a stainless steel filter membrane loaded with a ceramic membrane, and the membrane element and the stainless steel shell are directly connected by welding.

[0007] In a possible implementation, the membrane element has high temperature resistance and can adapt to sewage treatment needs in high temperature environments.

[0008] In one possible embodiment, the stainless steel housing provides structural support for the membrane element.

[0009] In one possible embodiment, the ceramic membrane is used to perform high-precision sewage separation, and the stainless steel filter membrane provides additional support functions.

[0010] In a possible implementation manner, the stainless steel housing can withstand a temperature range of 0°C to 100°C.

[0011] In a possible implementation, the direct welding connection method can avoid the use of adhesives, thereby preventing the problem of adhesive failure in high temperature or chemical environments.

[0012] In a possible implementation, the membrane element is a multi-layer structure formed by stacking a stainless steel membrane and a ceramic membrane.

[0013] In a possible implementation manner, the stainless steel filter membrane has a porous structure and is used for pre-filtering sewage.

[0014] In a possible implementation manner, the inner surface of the stainless steel housing has a corrosion-resistant coating.

[0015] Compared to existing technologies, the stainless steel composite ceramic tubular membrane module for treating high-temperature oilfield wastewater utilizes a stainless steel filter membrane loaded with a ceramic membrane structure, enabling wastewater treatment in high-temperature environments. Direct welding eliminates adhesive failure, addressing durability and reliability issues associated with wastewater treatment modules in high-temperature, high-pressure environments. The ceramic membrane exhibits excellent separation properties, enabling high-precision wastewater separation and effectively removing suspended solids and oils from wastewater. The stainless steel filter membrane provides additional support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is the main view of the utility model;

[0018] In the figure: 1. Housing; 2. Membrane element. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 and Figure 2

[0021] Specifically, this stainless steel composite ceramic tubular membrane assembly comprises a membrane element and a stainless steel housing. The membrane element is composed of a stainless steel filter membrane loaded with a ceramic membrane, and the membrane element and the stainless steel housing are connected by direct welding. In this solution, the combination of the stainless steel filter membrane and the ceramic membrane enables the membrane assembly to withstand the high temperatures and pressures during the sewage treatment process, while also providing excellent corrosion resistance and mechanical strength. Direct welding avoids the problem of adhesive failure at high temperatures associated with the use of adhesives, enhancing the overall durability and stability of the membrane assembly.

[0022] Specifically, the membrane element is heat-resistant and adaptable to the demands of wastewater treatment in high-temperature environments. In the above solution, the ceramic membrane element is typically made of high-temperature resistant materials such as alumina and zirconia, capable of maintaining stable filtration performance in environments with temperatures ranging from 0°C to 100°C. This design meets the demanding high-temperature requirements of high-temperature oilfield wastewater treatment, ensuring that the membrane element's service life and performance are not affected by temperature fluctuations.

[0023] Specifically, the stainless steel housing provides structural support for the membrane element. In the above solution, the stainless steel housing, made of high-temperature and corrosion-resistant stainless steel, provides strong mechanical support for the membrane element, preventing deformation or damage in high-temperature and high-pressure environments. Furthermore, the housing's structural design ensures long-term, stable operation of the membrane assembly during wastewater treatment.

[0024] Specifically, the ceramic membrane is used for high-precision wastewater separation, while the stainless steel filter membrane provides additional support. In this solution, the ceramic membrane's microporous structure allows for precise separation of fine pollutants and impurities, making it suitable for high-precision wastewater treatment. The stainless steel filter membrane, with its strong mechanical properties, provides mechanical support for the ceramic membrane, enhancing the durability of the overall filtration system.

[0025] Specifically, the stainless steel housing can withstand temperatures ranging from 0°C to 100°C. In this solution, the housing is made of high-quality, high-temperature and high-pressure-resistant stainless steel, ensuring the long-term, stable operation of the membrane module under extreme temperature and pressure conditions. This design enables the membrane module to be widely used in high-temperature and high-pressure oilfield wastewater treatment applications, adapting to a variety of extreme operating conditions.

[0026] Specifically, the direct welding connection method avoids the use of adhesives, preventing adhesive failure in high-temperature or chemical environments. In the above solution, direct welding technology securely connects the membrane element to the housing through a welding process under high-temperature and high-pressure conditions. This not only improves the strength of the connection but also avoids leakage or failure caused by adhesive degradation in high-temperature and corrosive environments, thereby enhancing the safety and reliability of the membrane assembly.

[0027] Specifically, the membrane element is a stack of multiple layers of ceramic membranes. In the above solution, the membrane element utilizes a stacked structure of ceramic and stainless steel membranes. This design not only improves filtration accuracy but also extends the life of the membrane element, reducing the need for frequent membrane element replacement and lowering maintenance costs.

[0028] Specifically, the high strength and corrosion resistance of the stainless steel filter membrane ensure long-term reliable operation under harsh working conditions.

[0029] The operating principle can be described as follows: This membrane assembly filters and separates high-temperature oilfield wastewater through a combination of stainless steel and ceramic membranes. The stainless steel housing provides strong mechanical support for the membrane element, enabling stable operation under high-temperature and high-pressure conditions, while the ceramic membrane is primarily responsible for high-precision wastewater separation.

[0030] The specific working steps are as follows:

[0031] 1. Filtration: Sewage enters the membrane element. The ceramic membrane, with its microporous structure, separates smaller pollutant particles with high precision. The microporous structure of the ceramic membrane typically filters out particles with diameters in the micrometer or even nanometer range, effectively removing suspended solids, oil, and other pollutants from the wastewater.

[0032] 2. Operation under high temperature and high pressure conditions: The stainless steel housing and stainless steel filter membrane material are resistant to high temperatures and high pressures and can withstand temperatures ranging from 0°C to 100°C. In high-temperature oilfield wastewater treatment, the membrane assembly can operate continuously and effectively, maintaining the stability and filtration efficiency of the membrane element.

[0033] 3. Direct welding seal: The membrane element is directly welded to the stainless steel housing, eliminating potential issues associated with adhesives, which can fail in high temperatures or corrosive environments. This welding method ensures that the membrane assembly connection maintains a good seal and stability even under harsh conditions, preventing water leaks or structural damage.

[0034] Based on the above principle, the stainless steel composite ceramic tubular membrane module can maintain efficient and stable operation when treating high-temperature, high-pressure, and highly corrosive oilfield wastewater, providing good wastewater filtration effects and extending the service life of the membrane module.

[0035] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A stainless steel composite ceramic tubular membrane module for treating high-temperature oilfield wastewater, characterized in that: The membrane assembly comprises a membrane element and a stainless steel shell. The membrane element is composed of a stainless steel filter membrane loaded with a ceramic membrane, and the membrane element and the stainless steel shell are connected by direct welding.

2. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The membrane element has high temperature resistance and can adapt to the sewage treatment needs in high temperature environments.

3. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The stainless steel housing provides structural support for the membrane element.

4. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The ceramic membrane is used for high-precision sewage separation, and the stainless steel filter membrane provides additional support and filtering functions.

5. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The stainless steel housing can withstand a temperature range of 0°C to 100°C.

6. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The direct welding connection method can avoid the use of adhesives and prevent the problem of adhesive failure in high temperature or chemical environment.

7. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The membrane element is a multi-layer structure, formed by stacking a stainless steel membrane and a ceramic membrane.

8. The stainless steel composite ceramic tubular membrane assembly according to claim 1, characterized in that: The stainless steel filter membrane has a porous structure and is used for filtering sewage.

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