Oil-water separator

Abstract

The utility model discloses an oil-water separator. According to the technical scheme, the filter element comprises a shell and a filter element arranged in the shell, a drainage hole is formed in the lower end of the shell, a drainage valve is arranged in the drainage hole, the filter element comprises an upper cover, a lower cover, an inner cylinder and filter paper, threads are arranged at the upper end of the shell and connected with an oil supply port of an engine, an inlet hole and an output hole are formed in the upper cover, and the lower cover is connected with the inner cylinder. The output hole is communicated with the inner side of the inner cylinder, the inlet hole is communicated with the outer side of the filter paper, and the shell, the upper cover, the lower cover and the inner cylinder are all made of plastics.

Description

Technical Field

[0001] This utility model relates to the field of diesel filter elements, and more specifically to an oil-water separator. Background Technology

[0002] Before diesel fuel is supplied to a diesel engine, it needs to be filtered by a diesel fuel filter. There are two types of existing diesel fuel filters: one type separates oil and water during the filtration process; this type of filter requires periodic drainage and can also be called an oil-water separator. The other type does not require oil-water separation. Existing oil-water separators use metal threaded connections, which generate metal shavings during the connection process. These shavings enter the engine along with the diesel fuel, shortening the engine's lifespan. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an oil-water separator to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separator, comprising a housing and a filter element disposed within the housing, wherein the lower end of the housing has a drain hole and a drain valve is provided within the drain hole, the filter element comprises an upper cover, a lower cover, an inner cylinder, and filter paper, the upper end of the housing is provided with a thread, the thread being connected to the engine oil supply port, the upper cover is provided with an inlet hole and an outlet hole, the outlet hole communicating with the inner side of the inner cylinder, and the inlet hole communicating with the outer side of the filter paper, wherein the housing, upper cover, lower cover, and inner cylinder are all made of plastic.

[0005] As a further improvement of this utility model, a sealing ring is provided on the side of the upper cover. The sealing ring is connected to the upper cover by integral injection molding. The lower end face of the sealing ring abuts against the upper end of the housing, and the side of the sealing ring abuts against the connection of the engine oil supply port.

[0006] As a further improvement of this utility model, the lower cover is provided with a connecting groove, which is threadedly connected to the drain valve.

[0007] As a further improvement of this utility model, a partition is provided at the lower end of the lower cover, and the partition abuts against the shell.

[0008] As a further improvement of this utility model, the partition has several pieces, which are circumferentially distributed along the axis of the filter element.

[0009] As a further improvement of this utility model, the partition plate is provided with reinforcing ribs.

[0010] As a further improvement of this utility model, the lower cover, partition, and reinforcing rib are integrally injection molded.

[0011] As a further improvement of this utility model, the outer side of the filter paper is provided with adhesive.

[0012] The beneficial effects of this invention are that it avoids metal shavings during the connection process and can extend the service life of the engine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the top cover structure.

[0015] Figure 3 This is a schematic diagram of the bottom cover structure viewed from below.

[0016] Markings: 1. Shell; 11. Drain hole; 12. Drain valve; 2. Filter element; 21. Top cover; 211. Inlet hole; 212. Outlet hole; 22. Bottom cover; 221. Connecting groove; 222. Partition plate; 223. Reinforcing rib; 23. Inner cylinder; 24. Filter paper; 25. Sealing ring; 3. Adhesive. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0018] Reference Figure 1 one Figure 3 As shown, an oil-water separator according to this embodiment includes a housing 1 and a filter element 2 disposed inside the housing 1. The lower end of the housing 1 has a drain hole 11, and a drain valve 12 is provided inside the drain hole 11. The filter element 2 includes an upper cover 21, a lower cover 22, an inner cylinder 23, and filter paper 24. The upper end of the housing 1 is provided with a thread, which is connected to the engine oil supply port. The upper cover 21 is provided with an inlet hole 211 and an outlet hole 212. The outlet hole 212 communicates with the inner side of the inner cylinder 23, and the inlet hole 211 communicates with the outer side of the filter paper 24. The housing 1, the upper cover 21, the lower cover 22, and the inner cylinder 23 are all made of plastic.

[0019] The working process of the oil-water separator of this application, based on the above technical solution, is as follows: diesel fuel enters the housing 1 through the inlet hole 211, is filtered by the filter paper 24, exits from the inner cylinder 23, and then enters the engine through the outlet hole 212 to supply fuel. After long-term use, when some water accumulates at the bottom of the housing 1, the water can be drained by opening the drain valve 12, making drainage convenient.

[0020] The housing 1, upper cover 21, lower cover 22, and inner cylinder 23 are all made of plastic. When the housing 1 is threadedly connected to the engine's fuel inlet, no metal shavings will be generated, thus preventing metal shavings from entering the engine with diesel fuel and shortening the engine's service life.

[0021] Specifically, the threads are located on the outside of the housing 1. Even if plastic particles are generated during the threaded connection process, they will be blocked outside the filter screen and will not enter the engine, thus better protecting the engine.

[0022] As an improved specific implementation, the upper cover 21 is provided with a sealing ring 25 on its side. The sealing ring 25 is connected to the upper cover 21 by integral injection molding. The lower end face of the sealing ring 25 abuts against the upper end of the housing 1, and the side of the sealing ring 25 abuts against the connection of the engine oil supply port.

[0023] With the above technical solution, after the housing 1 is connected to the engine oil supply port, the connection of the engine oil supply port covers the outside of the sealing ring 25, and the lower end face of the sealing ring 25 abuts against the upper end face of the housing 1. The sealing ring 25 is restricted in two directions to achieve a seal, resulting in a good sealing effect.

[0024] It also restricts the lateral movement of the sealing ring 25, preventing the sealing ring 25 from bursting and causing oil leakage, thus improving safety.

[0025] As an improved specific implementation, the lower cover 22 is provided with a connecting groove 221, which is threadedly connected to the drain valve 12.

[0026] Through the above technical solution, the connecting groove 221 is threadedly connected to the drain valve 12, which improves the stability of the position of the drain valve 12 and the filter element 2.

[0027] As an improved specific implementation, the lower end of the lower cover 22 is provided with a partition 222, which abuts against the housing 1.

[0028] The above technical solution isolates the lower cover 22 from the housing 1, creating a gap between the lower cover 22 and the housing 1, making drainage smoother when the drain valve 12 is opened.

[0029] As one specific embodiment of the improvement, the partition 222 has several blocks that are circumferentially distributed along the axis of the filter element 2.

[0030] Through the above technical solution, the structural strength of the partition 222 is improved by multiple circumferentially distributed partitions 222.

[0031] As one specific embodiment of the improvement, the partition 222 is provided with reinforcing ribs 223.

[0032] Through the above technical solution, the reinforcing rib 223 improves the structural strength of the partition 222 in the vertical direction, prevents breakage, and improves the stability during use.

[0033] As one specific embodiment of the improvement, the lower cover 22, partition 222, and reinforcing rib 223 are integrally injection molded.

[0034] Through the above technical solution, the lower cover 22, partition 222, and reinforcing rib 223 are integrally injection molded, resulting in high structural strength.

[0035] As one specific embodiment of the improvement, the outer side of the filter paper 24 is provided with adhesive 3.

[0036] Through the above technical solution, the adhesive 3 is arranged in a ring spiral to improve the support and pressure resistance of the filter paper 24, making the filter paper 24 less prone to deformation and flattening during filtration, thus stabilizing the filtration of diesel fuel and improving stability during use.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An oil-water separator, comprising a housing (1) and a filter element (2) disposed within the housing (1), characterized in that: The lower end of the housing (1) has a drain hole (11), and a drain valve (12) is provided in the drain hole (11). The filter element (2) includes an upper cover (21), a lower cover (22), an inner cylinder (23), and filter paper (24). The upper end of the housing (1) is provided with a thread, which is connected to the engine oil supply port. The upper cover (21) is provided with an inlet hole (211) and an outlet hole (212). The outlet hole (212) is connected to the inner side of the inner cylinder (23), and the inlet hole (211) is connected to the outer side of the filter paper (24). The housing (1), upper cover (21), lower cover (22), and inner cylinder (23) are all made of plastic.

2. The oil-water separator according to claim 1, characterized in that: The upper cover (21) is provided with a sealing ring (25) on its side. The sealing ring (25) is connected to the upper cover (21) by integral injection molding. The lower end face of the sealing ring (25) abuts against the upper end of the housing (1). The side of the sealing ring (25) abuts against the connection of the engine oil supply port.

3. The oil-water separator according to claim 1, characterized in that: The lower cover (22) is provided with a connecting groove (221), which is threadedly connected to the drain valve (12).

4. The oil-water separator according to claim 1, characterized in that: The lower end of the lower cover (22) is provided with a partition (222), which abuts against the shell (1).

5. The oil-water separator according to claim 4, characterized in that: The partition (222) has several pieces, which are circumferentially distributed along the axis of the filter element (2).

6. The oil-water separator according to claim 4 or 5, characterized in that: The partition (222) is provided with reinforcing ribs (223).

7. The oil-water separator according to claim 6, characterized in that: The lower cover (22), partition (222), and reinforcing rib (223) are integrally injection molded.

8. The oil-water separator according to claim 1, characterized in that: The filter paper (24) has an adhesive (3) on its outer side.

Images