A pre-oil removal filter element

Abstract

This utility model discloses a pre-filter element for an oil separator. The oil separator housing of this filter element has an outer shell, with an inlet nozzle fixed at the front end and an outlet nozzle fixed at the rear end. The front and rear sections of the outer shell are connected by flanges and fastening bolts for easy disassembly and maintenance. A filter cartridge is snapped into the inner cavity of the oil separator housing. Fixing rings at both ends of the inner cavity of the outer shell position the filter cartridge. The filter cartridge includes an oil separator filter cartridge, whose inner cavity has several sets of filter cartridge supports arranged in a linear array. Each filter cartridge support consists of a silicone ring, a tensioning ring, and a hook ring. The silicone ring contacts the inner cavity of the oil separator filter cartridge, and the tensioning ring engages with the groove of the silicone ring to provide tension, ensuring the silicone ring is tightly fitted against the inner cavity of the oil separator filter cartridge for support. A hydraulic sensor is fixed at each end of the oil separator filter cartridge. The front sensor monitors the inlet pressure, and the rear sensor monitors the outlet pressure, allowing for timely acquisition of the inlet and outlet hydraulic pressure difference data. This facilitates monitoring the working status of the oil separator filter cartridge and ensures effective oil removal and filtration.

Description

Technical Field

[0001] This utility model relates to the field of oil separator filter element technology, specifically to a pre-oil separator filter element. Background Technology

[0002] In industrial production and liquid handling, the filtration of oily liquids is a common and critical issue. Traditional oil removal filtration equipment has limitations in its structural design and functional implementation. For example, some oil removal filtration equipment lacks an effective internal support structure for the filter cartridge during the filtration process. When the liquid pressure is high, the filter cartridge is prone to deformation, which not only affects the filtration effect but also shortens the service life of the filter cartridge and increases equipment maintenance costs.

[0003] Furthermore, traditional oil removal and filtration equipment often lacks effective means to monitor the working status of the oil removal filter cartridges. Operators find it difficult to understand the degree of clogging in real time and can only rely on experience or periodic disassembly and inspection to determine whether the filter cartridges need cleaning or replacement. This method is not only inefficient but also fails to provide timely maintenance for the filter cartridges, potentially leading to a decrease in filtration efficiency and affecting the stability of the entire production process and product quality. Moreover, traditional designs also present inconveniences in the installation and disassembly of the filter cartridge support structure. Some support structures are complex to install and difficult to disassemble, consuming significant time and manpower when cleaning or replacing the filter cartridges is required, increasing equipment downtime and reducing production efficiency.

[0004] Based on this, the pre-oil separator filter element technology solution was developed to solve the problems existing in the traditional oil removal and filtration equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a technical solution for a pre-oil separator filter element to address the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0006] It includes an oil separator housing, in which a filter cartridge is snapped into the inner cavity of the oil separator housing; the oil separator housing includes an outer shell, an inlet nozzle fixedly connected to the front end of the outer shell, and an outlet nozzle fixedly connected to the rear end of the outer shell.

[0007] The filter cartridge assembly includes an oil removal filter cartridge, several sets of filter cartridge support members arranged in a linear array in the inner cavity of the oil removal filter cartridge, and two hydraulic sensors fixed at the front and rear ends of the oil removal filter cartridge.

[0008] The filter cartridge support includes a silicone ring, a tensioning ring that is clamped and tightened on the inner side of the silicone ring, and hooks are fixedly connected to both ends of the tensioning ring.

[0009] As a preferred embodiment of this utility model: the outer shell is divided into front and rear sections, and the front and rear sections are fixedly connected to each other by flanges, and the flanges are connected to each other by several fastening bolts.

[0010] As a preferred embodiment of this utility model: both the front and rear ends of the inner cavity of the outer shell are fixedly connected to fixing rings, and the front and rear end faces of the oil removal filter cartridge are in contact with the side of the fixing rings that are close to each other.

[0011] As a preferred embodiment of this utility model: the hydraulic sensor on the front side is fixed to the front end face of the oil removal filter cartridge by a bracket for monitoring the inlet pressure, and the hydraulic sensor on the rear side is fixed to the outlet port of the oil removal filter cartridge by a bracket for monitoring the outlet pressure, thereby timely obtaining the hydraulic pressure difference data between the inlet and outlet of the oil removal filter cartridge.

[0012] As a preferred embodiment of this utility model, the outer surface of the silicone ring is in contact with the inner wall of the oil removal filter cartridge.

[0013] As a preferred embodiment of this utility model, a groove is provided on the inner side wall of the silicone ring for the outer ring of the tensioning ring to be inserted.

[0014] As a preferred embodiment of this utility model: the two ends of the tensioning ring are not connected, and the tensioning ring has an outward expansion tension force, so that the outer surface of the silicone ring is tightly attached to the inner cavity of the oil removal filter cartridge, thereby providing support to the oil removal filter cartridge from the inside out.

[0015] As a preferred embodiment of this utility model: the inside of each hook ring is provided with a through hole for the water supply pipe clamp to be hooked and held.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] In the filter cartridge assembly, the silicone ring of the filter cartridge support works in conjunction with the tensioning ring. The tensioning force of the tensioning ring keeps the silicone ring tightly against the inner cavity of the oil removal filter cartridge, providing support from the inside out and effectively preventing deformation under liquid pressure, thus ensuring stable filtration operation. Hydraulic sensors monitor the inlet and outlet pressures, providing timely information on the pressure difference. Operators can use this information to determine the degree of clogging in the oil removal filter cartridge, allowing for timely cleaning or replacement. This prevents clogging from affecting filtration efficiency and normal equipment operation, extends equipment lifespan, and improves the reliability and efficiency of oil removal filtration. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the external structure of the oil separator;

[0020] Figure 2 This is a schematic diagram of the internal structure of the oil separator;

[0021] Figure 3 This is a schematic diagram of the interior of the filter cartridge;

[0022] Figure 4 This is a schematic diagram of the filter cartridge support.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Oil separator housing; 11. Housing; 12. Flange; 13. Fastening bolts; 14. Inlet nozzle; 15. Outlet nozzle; 2. Filter cartridge; 21. Oil separator filter cartridge; 22. Hydraulic sensor; 23. Filter cartridge support; 231. Silicone ring; 232. Tensioning ring; 233. Hook ring; 234. Groove. Detailed Implementation

[0025] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principles of the embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific parts in particular drawings may be exaggerated to illustrate relevant details or structures of the embodiments of this disclosure. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solution of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0026] Example 1: In practical applications, the pre-oil separator filter element uses the separator housing 1 as the overall support structure. The outer shell 11 is made of stainless steel, and its front and rear sections are connected by flanges 12. Several threaded holes are evenly distributed on the flanges 12. Fastening bolts 13 are passed through these holes to tightly connect the front and rear sections of the outer shell 11, ensuring the overall stability of the outer shell 11 structure. The inlet nozzle 14 is welded to the front end of the outer shell 11, and the outlet nozzle 15 is welded to the rear end. The interface dimensions of the inlet nozzle 14 and the outlet nozzle 15 are designed according to actual pipeline connection requirements, facilitating connection to external pipelines.

[0027] The filter cartridge 2 is snapped into the inner cavity of the outer shell 11. Fixing rings are welded to both the front and rear ends of the inner cavity of the outer shell 11, and these fixing rings are made of the same material as the outer shell 11. The oil removal filter cartridge 21 is made of filter media with a certain filtration accuracy. Its front and rear end faces respectively contact the sides of the fixing rings that are close to each other, thus providing initial positioning for the oil removal filter cartridge 21. Several sets of filter cartridge supports 23 are arranged in a linear array within the inner cavity of the oil removal filter cartridge 21. The outer surface of the silicone ring 231 in the filter cartridge support 23 is in close contact with the inner wall of the oil removal filter cartridge 21. The silicone ring 231 has a certain degree of flexibility and elasticity, allowing it to adapt to the shape of the inner cavity of the oil removal filter cartridge 21. The tensioning ring 232 is tightened and secured in the groove 234 inside the silicone ring 231. The size of the groove 234 matches the outer ring size of the tensioning ring 232. The two ends of the tensioning ring 232 are not connected, and the tensioning ring 232 has an outward expanding tension force, so that the outer surface of the silicone ring 231 fits tightly against the inner cavity of the oil removal filter cartridge 21, providing support for the oil removal filter cartridge 21 from the inside out and preventing the oil removal filter cartridge 21 from deforming under liquid pressure. Both ends of the tensioning ring 232 are fixedly connected to hook rings 233. The hook rings 233 have through holes inside. When installing or removing the filter cartridge support 23, pipe wrenches can be used to hook into the through holes of the hook rings 233 for operation.

[0028] The front hydraulic sensor 22 is fixed to the front end face of the oil removal filter cartridge 21 by a bracket, and the rear hydraulic sensor 22 is fixed to the rear outlet port of the oil removal filter cartridge 21 by a bracket. During the operation of the oil separator, the front hydraulic sensor 22 monitors the inlet pressure in real time, and the rear hydraulic sensor 22 monitors the outlet pressure in real time. The operator can obtain the inlet and outlet pressure difference data through external equipment, and judge the degree of blockage of the oil removal filter cartridge 21 based on the pressure difference, so as to clean or replace it in time.

[0029] Example 2: In another application scenario, the outer shell 11 of the pre-oil separator filter element is also made of aluminum alloy to reduce overall weight. The flange 12 is welded to the outer shell 11, and high-strength bolts 13 are used to ensure a secure connection. The inlet nozzle 14 and outlet nozzle 15 are threaded to the outer shell 11 for easy disassembly and replacement. The installation method of the filter cartridge 2 is similar to that in Example 1. The retaining ring inside the outer shell 11 is made of rubber to provide cushioning. The oil separator filter cartridge 21 uses a new type of composite filter media, which has higher filtration efficiency and a longer service life.

[0030] In the filter cartridge support 23, the silicone ring 231 is made of a specially treated material, exhibiting better corrosion resistance and wear resistance. The tensioning ring 232 is made of spring steel, and its tensioning force can be adjusted according to actual needs. During installation, the tensioning ring 232 is inserted into the groove 234 of the silicone ring 231, utilizing the elasticity of the spring steel to ensure a tight fit between the silicone ring 231 and the inner cavity of the oil removal filter cartridge 21. The hook ring 233 is designed in the same way as in Embodiment 1, facilitating operation. The hydraulic sensor 22 has the same installation position and function as in Embodiment 1, monitoring the inlet and outlet hydraulic pressure difference data to achieve real-time monitoring of the working status of the oil removal filter cartridge 21. When the pressure difference exceeds the set value, the system can issue an alarm to remind the operator to take action.

[0031] Example 3: This pre-oil separator filter element is suitable for applications requiring high filtration accuracy. The outer shell 11 of the oil separator housing 1 adopts a double-layer structure, with an inner layer of stainless steel and an outer layer of engineering plastic, ensuring both structural strength and thermal insulation. The flange 12 is made of stainless steel and is bolted to the outer shell 11 for easy disassembly and maintenance. The inlet nozzle 14 and outlet nozzle 15 use quick-connect couplings to improve installation efficiency. In the filter cartridge 2, the oil separator filter cartridge 21 uses ultra-fine fiber filter media, achieving a filtration accuracy down to the micron level. The retaining ring inside the outer shell 11 is made of polytetrafluoroethylene (PTFE), which has a low coefficient of friction and good chemical corrosion resistance.

[0032] The silicone ring 231 of the filter cartridge support 23 has an oxide coating to reduce friction with the inner cavity of the oil removal filter cartridge 21. The tension ring 232 is made of shape memory alloy, which can maintain a stable tension force at different temperatures. During installation, the tension ring 232 is inserted into the groove 234 of the silicone ring 231, and the elasticity of the shape memory alloy ensures that the silicone ring 231 fits tightly against the inner cavity of the oil removal filter cartridge 21. The hook ring 233 is designed for easy operation with special tools. The hydraulic sensor 22 is a high-precision sensor that can accurately monitor the inlet and outlet liquid pressures. By connecting to the control system, automatic monitoring and adjustment of the oil separator's operating status can be achieved.

[0033] Based on the above technical solution, the workflow of the technical solution is explained:

[0034] Oily liquid first enters the inner cavity of the outer shell 11 of the oil separator housing 1 through the inlet 14. During the liquid entry process, the hydraulic sensor 22 located at the front end of the oil removal filter cartridge 21 monitors the inlet pressure in real time and transmits the data to external monitoring equipment. After entering the inner cavity of the outer shell 11, the liquid flows into the oil removal filter cartridge 21 of the filter cartridge 2. The oil removal filter cartridge 21 filters and intercepts the oil in the liquid by virtue of its filter media characteristics, allowing the clean liquid to pass through the filter media of the oil removal filter cartridge 21. During the flow of liquid through the oil removal filter cartridge 21, several sets of filter cartridge supports 23 arranged in a linear array in the inner cavity of the oil removal filter cartridge 21 play a role. The outer surface of the silicone ring 231 is in close contact with the inner wall of the oil removal filter cartridge 21. The tensioning ring 232 is clamped and tightened in the groove 234 on the inner side of the silicone ring 231. Since the two ends of the tensioning ring 232 are not connected and have an outward expansion tensioning force, the outer surface of the silicone ring 231 is in close contact with the inner cavity of the oil removal filter cartridge 21, providing support for the oil removal filter cartridge 21 from the inside out, preventing the oil removal filter cartridge 21 from deforming under the action of liquid pressure, and ensuring the normal filtration operation of the oil removal filter cartridge 21.

[0035] The clean liquid filtered by the oil removal filter cartridge 21 flows out from the rear end of the oil removal filter cartridge 21. At this time, the hydraulic sensor 22 located in the outlet port at the rear end of the oil removal filter cartridge 21 monitors the outlet pressure in real time and transmits the data to the external monitoring equipment. After receiving the inlet and outlet pressure data, the external monitoring equipment calculates the inlet and outlet pressure difference data. The operator can judge the degree of blockage of the oil removal filter cartridge 21 based on the pressure difference data. When the pressure difference data indicates that the oil removal filter cartridge 21 is severely blocked, the operator can first remove the fastening bolts 13, separate the front and rear sections of the outer shell 11, and then take out the filter cartridge 2. For the filter cartridge support 23, a water pipe wrench can be used to hook it into the through hole of the hook ring 233 and remove it from the inner cavity of the oil removal filter cartridge 21. After that, the oil removal filter cartridge 21 can be cleaned or replaced. After cleaning or replacement, reinstall the filter cartridge support 23 back into the inner cavity of the oil removal filter cartridge 21, insert the tensioning ring 232 into the groove 234 of the silicone ring 231, so that the silicone ring 231 is tightly attached to the inner cavity of the oil removal filter cartridge 21, and then snap the filter cartridge 2 back into the inner cavity of the outer shell 11, so that the front and rear end faces of the oil removal filter cartridge 21 are in contact with the side of the fixing rings at the front and rear ends of the inner cavity of the outer shell 11 that are close to each other. Finally, use the fastening bolts 13 to connect and fix the flanges 12 of the front and rear sections of the outer shell 11, so that the pre-oil separator filter element returns to the working state and continues to filter the oily liquid.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pre-oil separator filter element, comprising an oil separator housing (1), characterized in that: A filter cartridge (2) is snapped into the inner cavity of the oil separator housing (1); The oil separator housing (1) includes a housing (11), an inlet nozzle (14) fixedly connected to the front end of the housing (11), and an outlet nozzle (15) fixedly connected to the rear end of the housing (11). The filter cartridge (2) includes an oil removal filter cartridge (21), several sets of filter cartridge supports (23) arranged in a linear array in the inner cavity of the oil removal filter cartridge (21), and two hydraulic sensors (22) fixed at the front and rear ends of the oil removal filter cartridge (21). The filter cartridge support (23) includes a silicone ring (231), a tensioning ring (232) that is clamped and tightened on the inner side of the silicone ring (231), and hooks (233) are fixedly connected to both ends of the tensioning ring (232).

2. The pre-oil separator filter element according to claim 1, characterized in that: The outer shell (11) is divided into front and rear sections, and the front and rear sections are fixedly connected to each other with flanges (12). The flanges (12) are connected to each other by several fastening bolts (13).

3. The pre-oil separator filter element according to claim 1, characterized in that: The inner cavity of the outer shell (11) is fixedly connected to the front and rear ends of the inner cavity with a fixing ring, and the front and rear end faces of the oil filter cartridge (21) are in contact with the side of the fixing ring that is close to each other.

4. A pre-oil separator filter element according to claim 1, characterized in that: The hydraulic sensor (22) on the front side is fixed to the front end face of the oil removal filter cartridge (21) by a bracket to monitor the inlet pressure. The hydraulic sensor (22) on the rear side is fixed to the outlet port of the oil removal filter cartridge (21) by a bracket to monitor the outlet pressure, so as to obtain the hydraulic differential data of the oil removal filter cartridge (21) in a timely manner.

5. A pre-oil separator filter element according to claim 1, characterized in that: The outer surface of the silicone ring (231) is in contact with the inner wall of the oil removal filter cartridge (21).

6. A pre-oil separator filter element according to claim 1, characterized in that: The inner sidewall of the silicone ring (231) is provided with a groove (234) for the outer ring of the tensioning ring (232) to be inserted.

7. A pre-oil separator filter element according to claim 1, characterized in that: The two ends of the tension ring (232) are not connected, and the tension ring (232) has an outward expansion tension force, so that the outer surface of the silicone ring (231) is tightly attached to the inner cavity of the oil filter cartridge (21), thereby providing support for the oil filter cartridge (21) from the inside out.

8. A pre-oil separator filter element according to claim 1, characterized in that: The hook ring (233) has through holes for the water supply pipe clamp to be hooked and held inside.

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