A bottom spiral oil-water separation filter convenient for pollution discharge

CN224606514UActive Publication Date: 2026-08-07SHIYAN FUERDUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIYAN FUERDUN TECH CO LTD
Filing Date
2025-09-30
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本实用新型提供了一种便于排污的底部螺旋式油水分离滤清器,具备便于分离燃油中混杂的水分的优点,解决了只能够过滤固态杂质,无法分离出汽车燃油中的水分,对汽车燃油的过滤清洁效果有限的问题

Benefits of technology

[0022] This bottom-mounted spiral oil-water separator filter, which facilitates wastewater discharge, achieves efficient oil-water separation through the synergistic effect of centrifugal force and the separation membrane. The motor drive and "T"-shaped slider groove structure ensure the stability and sealing of the separation process. The float valve automatic drainage mechanism enables unmanned intelligent wastewater discharge. Multi-stage support and optimized pipeline design improve structural reliability and filtration efficiency, solving the problem that traditional filters cannot separate water, and improving fuel cleanliness and engine operating safety.

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Abstract

The utility model relates to filter technology field, and disclose a bottom spiral oil -water separation filter convenient to pollution discharge, including the shell of installation in the filter body periphery, the shell inside is equipped with separation component, separation component is installed in the filter body and the shell intermediate position, and separation component rotation is arranged in the shell inside. This bottom spiral oil -water separation filter convenient to pollution discharge, through centrifugal force and separation membrane synergy effect realized the efficient separation of oil -water, through motor drive and'T'shaped sliding block sliding slot structure has guaranteed the stability and sealing of separation process, the float valve automatic drainage mechanism has realized unmanned intelligent pollution discharge, through multistage support and optimization pipeline design has improved structural reliability and filtration efficiency, solved the problem that traditional filter cannot separate moisture, improved fuel cleanliness and engine operation safety.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a bottom spiral oil-water separator filter that facilitates sewage discharge. Background Technology

[0002] A filter is an accessory that uses filter paper to filter impurities or gases. Generally, it refers to automotive filters, which are engine components, with the oil filter located in the engine lubrication system. Upstream is the oil pump, and downstream are the various engine components that require lubrication. Its function is to filter out harmful impurities from the engine oil coming from the oil pan, supplying clean oil to moving parts such as the crankshaft, connecting rods, camshaft, turbocharger, and piston rings, providing lubrication, cooling, and cleaning, thereby extending the lifespan of these components.

[0003] An existing patent (publication number: CN221742762U) discloses a fuel filter, comprising: a filter body, a top cover threadedly connected to the top of the filter body, and a sealing ring fixedly connected to the top cover near the interior of the filter body; a filter assembly is disposed inside the filter body, and a plurality of filter screen assemblies are disposed on the filter assembly; an oil inlet pipe is connected in the middle of the top cover, and an oil outlet pipe is connected in the middle of the bottom of the filter body. By providing the top cover, it is easy to disassemble the top cover, thereby facilitating the disassembly and replacement of the internal filter assembly and filter screen assemblies. By providing multiple filter screen assemblies, multi-layer filtration is facilitated. By providing magnetic strips, it is easy to adsorb metal impurities in the fuel.

[0004] However, this fuel filter still has some shortcomings in actual operation. The function of the filter is to filter and remove impurities mixed in the fuel to ensure the quality of the fuel. However, the impurities in the fuel are not only solid impurities, but also water. This filter can only filter solid impurities and cannot separate the water in the fuel, so its filtering and cleaning effect on the fuel is limited. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a bottom spiral oil-water separator filter that facilitates wastewater discharge. It has the advantage of easily separating water mixed in fuel, solving the problem that it can only filter solid impurities and cannot separate water from automotive fuel, resulting in limited filtration and cleaning effects on automotive fuel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bottom spiral oil-water separator filter that facilitates sewage discharge, comprising a housing installed on the outer periphery of the filter body, a separation component installed inside the housing, the separation component being installed at the middle position between the filter body and the housing, and the separation component being rotatably disposed inside the housing.

[0007] The separation assembly includes a rotating plate with a spiral guide plate fixed to its outer periphery. A water storage chamber is provided inside the housing, and a separation plate is fixed to the inner wall of the water storage chamber. The spiral guide plate is in contact with the inner side of the separation plate, and the lower surface of the separation plate is in contact with the upper surface of the rotating plate. The separation plate and the rotating plate form a closed separation cavity. The surface of the separation plate is coated with a separation membrane that allows water to pass through but not oil.

[0008] Through the above scheme, the spiral guide plate generates centrifugal force during rotation, causing the oil-water mixture to form a swirling flow in the separation chamber. Under the combined action of centrifugal force and separation membrane, water is adsorbed onto the surface of the separation plate and gathers at the bottom of the water storage tank, achieving efficient separation of oil and water. Meanwhile, the clean fuel continues to flow to the filter body for further filtration, significantly improving the oil-water separation efficiency.

[0009] Furthermore, the separation assembly also includes a motor fixed to the inner wall of the water storage tank, a gear fixed to the output end of the motor, a gear ring fixed to the lower surface of the rotating plate, the gear and the gear ring meshing with each other, and the rotating plate and the spiral guide plate rotating around the outer periphery of the filter body via the motor, gear and gear ring.

[0010] With the above scheme, the motor drives the rotating plate and the spiral guide plate to rotate at a constant speed through the meshing of gears and gear rings, providing a stable and reliable power transmission, ensuring that a stable centrifugal force field is formed in the separation chamber, avoiding the decrease in separation effect caused by speed fluctuations. At the same time, the built-in design of the motor saves space and is easy to maintain.

[0011] Furthermore, a slider is fixed on the upper surface of the rotating plate, and a groove corresponding to the slider is opened on the inner wall of the water storage tank. The slider moves inside the groove. Both the slider and the groove are annular, and any cross-section of the slider and the groove is "T" shaped. The rotating plate and the spiral guide plate are installed inside the water storage tank through the slider and the groove.

[0012] Through the above solution, the cooperation between the "T"-shaped slider and the groove not only restricts the axial displacement of the rotating plate, but also prevents the oil-water mixture from leaking into the non-working area, ensuring the stability and sealing of the separation component during high-speed rotation. At the same time, the ring design makes the force uniform and reduces wear and vibration.

[0013] Furthermore, a support plate is fixed to the inner wall of the water storage tank, and the lower surface of the separation plate overlaps the surface of the support plate. There are multiple support plates, which are evenly arranged in a ring on the inner wall of the water storage tank. An oil inlet pipe is provided through the side of the shell, and the other end of the oil inlet pipe passes through the separation plate and is installed inside the separation cavity.

[0014] Through the above scheme, the ring-shaped support plates share the load of the separation plate and the attached moisture, preventing deformation under long-term operation, and enhancing the load-bearing capacity of the separation plate and the overall structural stability; the design of the oil inlet pipe directly entering the separation chamber shortens the oil path, reduces pressure loss, and improves the separation response speed.

[0015] Furthermore, a drainage hole is provided on the bottom wall of the water storage tank. A fixing plate is fixed to the inner wall of the drainage hole. A support rod is fixed to the upper surface of the fixing plate. A float valve is sleeved on the surface of the support rod. The float valve is located inside the water storage tank, and the lower surface of the float valve is in contact with the bottom wall of the water storage tank. The diameter of the float valve is larger than that of the drainage hole.

[0016] With the above scheme, when the water level rises, the float valve rises and opens the drain hole; when the water level falls, the float valve sinks and closes the drain hole. This allows the float valve to automatically rise and fall according to the water level changes in the water storage tank, enabling continuous sewage discharge without external control. This achieves automatic monitoring and discharge of water, avoids manual intervention, and prevents accidental discharge of oil.

[0017] Furthermore, the filter body is equipped with a filter element, a bypass valve and a check valve. A connecting pipe is provided on the upper surface of the housing. One end of the connecting pipe is inserted into the separation chamber, and the other end of the connecting pipe is connected to the oil inlet of the filter body.

[0018] With the above scheme, the separated clean fuel enters the filter body directly through the connecting pipe for fine filtration. The bypass valve protects the system when the pressure difference is too large, and the check valve prevents oil backflow, ensuring the continuity and reliability of the separation and filtration process.

[0019] Furthermore, an oil return pipe is installed at the oil outlet end of the filter body, and a drain pipe is installed inside the drain hole, which is connected to an external water collection device.

[0020] The above solution delivers the filtered fuel to the engine circulation system via the return oil pipe, while the drain pipe directs the separated water to the water collection device to prevent water from re-mixing into the fuel. At the same time, the external water collection design facilitates centralized treatment of wastewater, meeting environmental protection requirements.

[0021] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0022] This bottom-mounted spiral oil-water separator filter, which facilitates wastewater discharge, achieves efficient oil-water separation through the synergistic effect of centrifugal force and the separation membrane. The motor drive and "T"-shaped slider groove structure ensure the stability and sealing of the separation process. The float valve automatic drainage mechanism enables unmanned intelligent wastewater discharge. Multi-stage support and optimized pipeline design improve structural reliability and filtration efficiency, solving the problem that traditional filters cannot separate water, and improving fuel cleanliness and engine operating safety. Attached Figure Description

[0023] Figure 1 This is a diagram illustrating the overall structure of this application;

[0024] Figure 2 This is a front sectional view of the structure of this application;

[0025] Figure 3 This is a cross-sectional view of the separated components in this application;

[0026] Figure 4 For this application Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the shell structure in this application;

[0028] Figure 6 This is a structural diagram of the separate components in this application.

[0029] In the picture:

[0030] 1. Shell; 101. Water storage tank; 102. Separation plate; 103. Connecting pipe; 104. Drain hole; 105. Fixing plate; 106. Support rod; 107. Float valve; 108. Support plate;

[0031] 2. Filter body;

[0032] 3. Separation components; 301. Motor; 302. Gear; 303. Rotating plate; 304. Gear ring; 305. Spiral guide plate; 306. Slider;

[0033] 4. Return oil pipe; 5. Drain pipe; 6. Inlet oil pipe. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Please see Figure 1-6This embodiment of a bottom spiral oil-water separator filter for easy drainage includes a housing 1 installed on the outer periphery of the filter body 2. A separation component 3 is installed inside the housing 1, positioned between the filter body 2 and the housing 1. The separation component 3 is rotatably disposed inside the housing 1. Efficient oil-water separation is achieved through the synergistic effect of centrifugal force and the separation membrane. The separation process is ensured by the motor 301 drive and the sliding groove structure of the "T"-shaped slider 306. The automatic drainage mechanism of the float valve 107 enables unmanned intelligent drainage. The structural reliability and filtration efficiency are improved through multi-stage support and optimized pipeline design, solving the problem that traditional filters cannot separate water, and improving fuel cleanliness and engine operating safety.

[0036] The separation assembly 3 includes a rotating plate 303, with a spiral guide plate 305 fixed to the outer periphery of the rotating plate 303. A water storage chamber 101 is provided inside the housing 1, and a separation plate 102 is fixed to the inner wall of the water storage chamber 101. The spiral guide plate 305 is in contact with the inner side of the separation plate 102, and the lower surface of the separation plate 102 is in contact with the upper surface of the rotating plate 303. The separation plate 102 and the rotating plate 303 form a closed separation chamber. The surface of the separation plate 102 is coated with a separation membrane that allows water to pass through but not oil. During the rotation, the spiral guide plate 305 generates centrifugal force, causing the oil-water mixture to form a swirling flow in the separation chamber. Under the combined action of centrifugal force and the separation membrane, the water is adsorbed onto the surface of the separation plate 102 and converges to the bottom of the water storage chamber 101, achieving efficient separation of oil and water. The clean fuel continues to flow to the filter body 2 for further filtration, significantly improving the oil-water separation efficiency.

[0037] In addition, the separation assembly 3 also includes a motor 301 fixed to the inner wall of the water storage tank 101. A gear 302 is fixed to the output end of the motor 301, and a gear ring 304 is fixed to the lower surface of the rotating plate 303. The gear 302 and the gear ring 304 mesh with each other. The rotating plate 303 and the spiral guide plate 305 rotate around the outer circumference of the filter body 2 through the motor 301, gear 302, and gear ring 304. The motor 301 drives the rotating plate 303 and the spiral guide plate 305 to rotate at a constant speed through the meshing of the gear 302 and the gear ring 304, providing a stable and reliable power transmission, ensuring the formation of a stable centrifugal force field in the separation chamber, and avoiding the decrease in separation effect due to speed fluctuations. At the same time, the motor 301 has a built-in design for... It saves space and is easy to maintain; a slider 306 is fixed on the upper surface of the rotating plate 303, and a groove corresponding to the slider 306 is opened on the inner wall of the water storage tank 101. The slider 306 moves inside the groove. Both the slider 306 and the groove are annular. Any cross section of the slider 306 and the groove is "T" shaped. The rotating plate 303 and the spiral guide plate 305 are installed inside the water storage tank 101 through the slider 306 and the groove. The cooperation between the "T" shaped slider 306 and the groove not only restricts the axial displacement of the rotating plate 303, but also prevents the oil-water mixture from leaking into the non-working area, ensuring the stability and sealing of the separation component 3 during high-speed rotation. At the same time, the annular design makes the force uniform and reduces wear and vibration.

[0038] A support plate 108 is fixed to the inner wall of the water storage tank 101. The lower surface of the separation plate 102 overlaps the surface of the support plate 108. There are multiple support plates 108, which are evenly arranged in a ring on the inner wall of the water storage tank 101. An oil inlet pipe 6 is provided through the side of the shell 1. The other end of the oil inlet pipe 6 passes through the separation plate 102 and is installed inside the separation chamber. The ring-shaped distribution of support plates 108 shares the load of the separation plate 102 and the attached water, preventing deformation under long-term operation and enhancing the load-bearing capacity and overall structural stability of the separation plate 102. The design of the oil inlet pipe 6 directly entering the separation chamber shortens the oil path, reduces pressure loss, and improves the separation response speed. A drain hole 1 is provided on the bottom wall of the water storage tank 101. 04. A fixing plate 105 is fixed to the inner wall of the drain hole 104. A support rod 106 is fixed to the upper surface of the fixing plate 105. A float valve 107 is sleeved on the surface of the support rod 106. The float valve 107 is set inside the water storage tank 101, and the lower surface of the float valve 107 is in contact with the bottom wall of the water storage tank 101. The diameter of the float valve 107 is larger than that of the drain hole 104. When the water level rises, the float valve 107 floats up and opens the drain hole 104. When the water level drops, the float valve 107 sinks down and closes the drain hole 104. This allows the float valve 107 to automatically rise and fall according to the water level change in the water storage tank 101. Continuous sewage discharge can be achieved without external control, realizing automatic monitoring and discharge of water, avoiding manual intervention and preventing accidental discharge of oil.

[0039] It should be noted that the filter body 2 is equipped with a filter element, a bypass valve, and a check valve. A connecting pipe 103 is installed on the upper surface of the housing 1. One end of the connecting pipe 103 is inserted into the separation chamber, and the other end is connected to the oil inlet of the filter body 2. The clean fuel after separation enters the filter body 2 directly through the connecting pipe 103 for fine filtration. The bypass valve protects the system when the pressure difference is too large, and the check valve prevents oil backflow, ensuring the continuity and reliability of the separation and filtration process. The oil outlet of the filter body 2 is equipped with a return oil pipe 4, and a drain pipe 5 is installed inside the drain hole 104. The drain pipe 5 is connected to an external water collection device. The return oil pipe 4 delivers the filtered fuel to the engine circulation system, and the drain pipe 5 directs the separated water to the water collection device to prevent water from mixing back into the fuel. At the same time, the external water collection design facilitates centralized treatment of wastewater, which meets environmental protection requirements.

[0040] The working principle of the above embodiments is as follows:

[0041] First, the device is installed in a suitable location. Then, the motor 301 is connected to an external power source and control equipment, specifically a controller, computer, or other known conventional equipment. Next, the oil enters the separation chamber through the oil inlet pipe 6. The control equipment then controls the operation of the motor 301, which drives the gear 302 to rotate. The gear 302 drives the meshing gear ring 304 to rotate, which in turn drives the rotating plate 303 and the spiral guide plate 305 fixed to the side of the rotating plate 303 to rotate synchronously, conveying the oil in the separation chamber upwards. During rotation, the spiral guide plate 305 generates centrifugal force, causing the oil-water mixture to swirl within the separation chamber. Under the combined action of centrifugal force and the separation membrane, the water is adsorbed onto the surface of the separation plate 102 and collects at the bottom of the water storage tank 101.

[0042] After separation, the oil enters the filter body 2, where impurities are filtered out. Meanwhile, water gradually accumulates in the water storage tank 101. When the water level rises, the float valve 107 rises and opens the drain hole 104. When the water level drops, the float valve 107 sinks and closes the drain hole 104. This allows the float valve 107 to automatically rise and fall according to the water level changes in the water storage tank 101, enabling continuous sewage discharge without external control and achieving automatic water monitoring and discharge.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bottom spiral oil-water separator filter for easy sewage discharge, characterized in that: Includes a housing (1) installed on the outer periphery of the filter body (2), and a separation component (3) installed inside the housing (1). The separation component (3) is installed in the middle position between the filter body (2) and the housing (1), and the separation component (3) is rotatably disposed inside the housing (1). The separation component (3) includes a rotating plate (303), a spiral guide plate (305) is fixed on the outer periphery of the rotating plate (303), a water storage tank (101) is provided inside the housing (1), a separation plate (102) is fixed on the inner wall of the water storage tank (101), the spiral guide plate (305) is in contact with the inner side of the separation plate (102), and the lower surface of the separation plate (102) is in contact with the upper surface of the rotating plate (303). The separation plate (102) and the rotating plate (303) form a closed separation cavity. The surface of the separation plate (102) is coated with a separation membrane that allows water to pass through but not oil.

2. The bottom spiral oil-water separator filter for easy sewage discharge according to claim 1, characterized in that: The separation component (3) also includes a motor (301) fixed to the inner wall of the water storage tank (101). A gear (302) is fixed to the output end of the motor (301). A gear ring (304) is fixed to the lower surface of the rotating plate (303). The gear (302) and the gear ring (304) mesh with each other. The rotating plate (303) and the spiral guide plate (305) rotate around the outer periphery of the filter body (2) through the motor (301), the gear (302) and the gear ring (304).

3. The bottom spiral oil-water separator filter for easy sewage discharge according to claim 1, characterized in that: A slider (306) is fixed on the upper surface of the rotating plate (303). A groove corresponding to the slider (306) is opened on the inner wall of the water storage tank (101). The slider (306) moves inside the groove. Both the slider (306) and the groove are annular. Any cross section of the slider (306) and the groove is "T" shaped. The rotating plate (303) and the spiral guide plate (305) are installed inside the water storage tank (101) through the slider (306) and the groove.

4. The bottom spiral oil-water separator filter for easy sewage discharge according to claim 1, characterized in that: The inner wall of the water storage tank (101) is also fixed with a support plate (108). The lower surface of the separation plate (102) overlaps the surface of the support plate (108). There are multiple support plates (108), which are evenly arranged in a ring on the inner wall of the water storage tank (101). An oil inlet pipe (6) is provided on the side of the shell (1). The other end of the oil inlet pipe (6) passes through the separation plate (102) and is installed inside the separation cavity.

5. A bottom spiral oil-water separator filter for easy sewage discharge according to claim 1, characterized in that: The bottom wall of the water storage tank (101) is provided with a drainage hole (104). A fixing plate (105) is fixed to the inner wall of the drainage hole (104). A support rod (106) is fixed to the upper surface of the fixing plate (105). A float valve (107) is sleeved on the surface of the support rod (106). The float valve (107) is located inside the water storage tank (101), and the lower surface of the float valve (107) is in contact with the bottom wall of the water storage tank (101). The diameter of the float valve (107) is larger than that of the drainage hole (104).

6. A bottom spiral oil-water separator filter for easy sewage discharge according to claim 1, characterized in that: The filter body (2) is equipped with a filter element, a bypass valve and a check valve. A connecting pipe (103) is provided on the upper surface of the housing (1). One end of the connecting pipe (103) is inserted into the separation chamber, and the other end of the connecting pipe (103) is connected to the oil inlet of the filter body (2).

7. A bottom spiral oil-water separator filter for easy sewage discharge according to claim 5, characterized in that: The filter body (2) has an oil return pipe (4) installed at the oil outlet end, and a drain pipe (5) is installed inside the drain hole (104). The drain pipe (5) is connected to an external water collection device.

Citation Information

Patent Citations

  • Fuel filter

    CN221742762U