A multi-stage oil removal filter for screw vacuum pumps

Abstract

This utility model discloses a multi-stage oil removal filter for a screw vacuum pump, belonging to the field of filter technology. This multi-stage oil removal filter for a screw vacuum pump includes a mounting frame. A screw vacuum pump body is mounted on the top surface of the mounting frame. A vertical pipe is connected to the bottom surface of the screw vacuum pump body. A pipeline is connected to the bottom end of the vertical pipe. One end of the pipeline has a flange, and an external connecting pipe is connected to the pipeline. One end of the external connecting pipe is connected to the oil removal filter body. A filter element assembly is located inside the oil removal filter body. The filter element assembly includes a sealing plate. Buckle plates are equidistantly mounted on the bottom surface of the sealing plate, and the outer wall of the buckle plates fits against the inner wall of the pipeline. This utility model, through the coordinated use of the screw vacuum pump body, vertical pipe, pipeline, oil removal filter body, and filter element assembly, enables the filter to achieve multi-stage, high-efficiency oil removal from gas and facilitates the replacement of internal filter elements.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a multi-stage oil removal filter for a screw vacuum pump. Background Technology

[0002] In many production workshops, a vacuum environment is often required, which is mostly generated by vacuum pumps. There are many types of vacuum pumps, each with varying performance. Currently, many manufacturers use piston vacuum pumps, which are energy-intensive and noisy, necessitating technological upgrades. Newer technologies utilize centralized vacuum pipelines, which are both energy-efficient and environmentally friendly. However, adopting centralized vacuum pipelines requires even more energy-efficient screw vacuum pumps due to their higher precision. Furthermore, some workshops contain grease, which can damage the vacuum pump if it enters. A search revealed a Chinese patent with publication number CN209317230U, which discloses a front-end oil removal and filtration device for a screw vacuum pump. This device includes: a tank, support legs, an inlet pipe, an exhaust pipe, a drain pipe, a guide plate, and a filter plate. The end of the inlet pipe is located on the axis of the tank, the exhaust pipe is fixed to the top of the tank, and the drain pipe is... The guide plate is fixed inside the tank, above the air inlet pipe connection, and placed at the bottom of the tank. The filter plate is also fixed inside the tank, above the guide plate. Multiple vent holes are radially distributed on the guide plate, with the diameter gradually increasing from the center outwards. The filter plate consists of a supporting mesh frame and a filter element. The supporting mesh frame has two layers and is fixed inside the tank. The filter element is placed between the supporting mesh frames and is made of high-quality coconut shell activated carbon wrapped in a mesh bag. This invention has the advantages of simple structure, reasonable construction, and good performance.

[0003] Currently, existing filters typically use a single filter element structure, resulting in poor oil removal efficiency. Furthermore, the individual filter element is fixed inside the filtration system, making it inconvenient to replace. Utility Model Content

[0004] To address the issues of poor oil removal performance and inconvenient filter element replacement in existing filters, this invention provides a multi-stage oil removal filter for screw vacuum pumps.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A multi-stage oil removal filter for a screw vacuum pump includes a mounting frame. A screw vacuum pump body is mounted on the top surface of the mounting frame. A vertical pipe is connected to the bottom surface of the screw vacuum pump body. A pipeline is connected to the bottom end of the vertical pipe. A flange is provided at one end of the pipeline. An external pipe is connected to the pipeline through the flange. One end of the external pipe is connected to the oil removal filter body. A filter element assembly is provided inside the oil removal filter body. The filter element assembly includes a sealing plate. Buckle plates are installed at equal intervals on the bottom surface of the sealing plate, and the outer wall of the buckle plate is fitted against the inner wall of the pipeline. A filter screen is embedded inside the buckle plate.

[0007] Furthermore, one end of the oil removal filter body is rotatably connected to a connecting sleeve, and one end of the connecting sleeve is threadedly connected to one end of the outer pipe.

[0008] The advantages of adopting the above-mentioned further solutions are that it facilitates quick disassembly and assembly of the oil removal filter, simplifies the replacement and maintenance process of the filter element assembly, and the threaded connection has strong sealing performance, which can prevent gas leakage at the connection and ensure the airtightness of the filtration system.

[0009] Furthermore, fixing components are provided on both sides of the outer wall of the oil removal filter body, and the fixing components include knobs, which are threadedly connected to both sides of the oil removal filter body.

[0010] The beneficial effects of adopting the above-mentioned further solution are that the fixing component can firmly fix the filter element assembly inside the filter by the knob, preventing the filter element from shifting or shaking under the impact of gas, ensuring that the filter screen is always in an effective filtration position, improving the stability of the filtration effect. At the same time, the knob operation is convenient and facilitates quick disassembly of the filter element for cleaning or replacement.

[0011] Furthermore, one end of the knob is connected to a shaft, and holes matching the shaft are respectively opened on both sides of the sealing plate.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the insertion shaft is inserted into the hole of the sealing plate to form a mechanical locking structure, which further enhances the fixing effect of the filter element assembly.

[0013] Furthermore, a handle is installed on the top surface of the sealing plate.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the handle provides a convenient force point for picking up and putting in the filter element assembly, making it easy for operators to quickly remove or install the filter element from the oil removal filter body.

[0015] Furthermore, a handle is installed on one side of the outer wall of the knob.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the handle on the outer wall of the knob increases the contact area between the hand and the knob, making it easier to rotate the knob and to quickly lock or loosen the filter element assembly. It is especially suitable for scenarios where the filter element is frequently replaced, thus improving maintenance efficiency.

[0017] Furthermore, the pipe is located inside the fixture.

[0018] The advantages of adopting the above-mentioned further solution are that the pipe is located inside the fixed frame, which can protect the pipe and reduce damage to the pipe from external collisions. At the same time, it makes the overall structure more compact and saves installation space.

[0019] Furthermore, a control panel is installed on one side of the top surface of the mounting bracket.

[0020] The advantages of adopting the above-mentioned further solutions are that the control panel makes it easier for operators to control the operating status of the screw vacuum pump body, adjust equipment parameters in real time, and integrate the status monitoring function of the filtration system to promptly remind the filter element to be replaced or to troubleshoot faults.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This type of multi-stage oil removal filter for screw vacuum pumps, through the coordinated use of the screw vacuum pump body, riser pipe, pipeline, oil removal filter body, and filter element assembly, enables the filter to achieve multi-stage, high-efficiency oil removal from gas and facilitates the replacement of internal filter elements. The screw vacuum pump body is connected to the oil removal filter body via the riser pipe and pipeline, and flanges ensure a sealed connection between the pipeline and the external connection, preventing gas leakage. Inside the filter element assembly, the sealing plate and buckle plate fit snugly against the inner wall of the pipeline, enhancing the sealing performance of the filtration structure. The filter screen performs multi-stage filtration of oil and gas, efficiently removing oil and preventing oil contamination or damage to downstream equipment. This improves the exhaust quality and operational reliability of the screw vacuum pump. Furthermore, the separable structure of the filter element assembly and the oil removal filter body allows for easy replacement of the filter screen within the filter element assembly. Attached Figure Description

[0023] Figure 1 A perspective view of a multi-stage oil removal filter for a screw vacuum pump provided by this utility model;

[0024] Figure 2 A schematic diagram of the main body of a multi-stage oil removal filter for a screw vacuum pump provided by this utility model;

[0025] Figure 3 A schematic diagram of a filter element assembly for a multi-stage oil removal filter for a screw vacuum pump provided by this utility model;

[0026] Figure 4A schematic diagram of a fixing assembly for a multi-stage oil removal filter for a screw vacuum pump provided by this utility model.

[0027] In the diagram: 1. Fixing frame; 2. Screw vacuum pump body; 3. Pipeline; 4. Control panel; 5. Flange; 6. Vertical pipe; 7. Oil removal filter body; 8. Filter element assembly; 801. Sealing plate; 802. Buckle plate; 803. Filter screen; 804. Hole; 805. Handle; 9. Fixing assembly; 901. Knob; 902. Insert shaft; 903. Twist handle; 10. Connecting sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-4 This utility model provides a technical solution: a multi-stage oil removal filter for a screw vacuum pump, including a fixed frame 1, a screw vacuum pump body 2 mounted on the top surface of the fixed frame 1, a vertical pipe 6 connected to the bottom surface of the screw vacuum pump body 2, a pipe 3 connected to the bottom end of the vertical pipe 6, a flange 5 provided at one end of the pipe 3, an external pipe connected to the pipe 3 through the flange 5, an oil removal filter body 7 connected to one end of the external pipe, a filter element assembly 8 provided inside the oil removal filter body 7, the filter element assembly 8 including a sealing plate 801, a buckle plate 802 equidistantly mounted on the bottom surface of the sealing plate 801, and the outer wall of the buckle plate 802 fitting against the inner wall of the pipe 3, a filter screen 803 embedded inside the buckle plate 802, the screw vacuum pump body connected to the oil removal filter body 7 through the vertical pipe 6 and the pipe 3, and the flange 5 achieving a sealed connection between the pipe and the external pipe to prevent gas leakage. In the filter element assembly 8 inside the oil removal filter body, the sealing plate 801 and the buckle plate 802 fit against the inner wall of the pipe to enhance the sealing of the filter structure. The filter screen 803 can perform multi-stage filtration of oil and gas, efficiently remove oil, prevent oil from entering subsequent equipment and causing pollution or damage, improve the exhaust quality and operational reliability of the screw vacuum pump, and at the same time, the separate structure of the filter element assembly 8 and the oil removal filter body 7 allows the filter screen 803 in the filter element assembly 8 to be replaced at any time.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] As an embodiment of this utility model, one end of the oil removal filter body 7 is rotatably connected to a connecting sleeve 10. One end of the connecting sleeve 10 is threadedly connected to one end of the outer pipe, which facilitates quick disassembly and assembly of the oil removal filter, simplifies the replacement and maintenance process of the filter element assembly 8, and at the same time, the threaded connection has strong sealing performance, which can prevent gas leakage at the connection and ensure the airtightness of the filtration system.

[0032] As an embodiment of this utility model, furthermore, fixing components 9 are provided on both sides of the outer wall of the oil removal filter body 7. The fixing components 9 include knobs 901, which are threadedly connected to both sides of the oil removal filter body 7. The fixing components 9 can firmly fix the filter element assembly 8 inside the filter by the knobs 901, preventing the filter element from shifting or shaking under the impact of gas, ensuring that the filter screen 803 is always in an effective filtration position, improving the stability of the filtration effect. At the same time, the knob is easy to operate, making it convenient to quickly disassemble the filter element for cleaning or replacement.

[0033] As an embodiment of this utility model, one end of the knob 901 is connected to the insertion shaft 902, and the two sides of the sealing plate 801 are respectively provided with holes 804 that match the insertion shaft 902. The insertion shaft 902 is inserted into the holes 804 of the sealing plate 801 to form a mechanical locking structure, which further enhances the fixing effect of the filter element assembly 8.

[0034] As an embodiment of this utility model, a handle 805 is further installed on the top surface of the sealing plate 801. The handle 805 provides a convenient force application point for picking up and putting in the filter element assembly 8, making it easy for operators to quickly take out or put in the filter element from the oil removal filter body 7.

[0035] As an embodiment of this utility model, a handle 903 is further installed on one side of the outer wall of the knob 901. The handle 903 on the outer wall of the knob 901 increases the contact area between the hand and the knob, making it easier to rotate the knob and to quickly lock or loosen the filter element assembly 8. It is especially suitable for scenarios where the filter element is frequently replaced, thus improving maintenance efficiency.

[0036] As one embodiment of this utility model, the pipe 3 is located inside the fixing frame 1. The fixing frame can protect the pipe, reduce damage to the pipe from external collisions, and make the overall structure more compact, saving installation space.

[0037] As an embodiment of this utility model, a control panel 4 is further installed on one side of the top surface of the fixing frame 1. The control panel 4 facilitates the operator to control the operating status of the screw vacuum pump body 2, adjust the equipment parameters in real time, and integrate the status monitoring function of the filtration system to promptly remind the filter element to be replaced or troubleshoot.

[0038] Specifically, the working principle of this multi-stage oil removal filter for screw vacuum pumps is as follows: During use, the mounting bracket 1 supports the screw vacuum pump body 2. The oily gas generated by the pump enters the pipeline 3 through the vertical pipe 6 and is transported to the oil removal filter body 7 through the sealed connection between the flange 5 and the external pipeline. The oil removal filter body 7 is connected to the external pipeline by a threaded connection through the connecting sleeve 10 to ensure a seal. The sealing plate 801 of the internal filter element assembly 8, together with the buckle plate 802, fits against the inner wall of the pipeline to enhance the airtightness. The filter screen 803 inside the buckle plate performs multi-stage filtration of the oil and gas to remove oil. The fixing component 9 on the outer wall of the filter uses a knob 901 to drive the insertion shaft 902 to insert into the hole 804 of the sealing plate 801, firmly fixing the filter element assembly and preventing it from shifting under gas impact. The handle 903 on the outer wall of the knob facilitates labor-saving operation. The pipeline 3 is protected inside the mounting bracket 1. The control panel 4 can control the operation of the pump and monitor the filtration status. When maintenance is required, the filter element assembly can be removed and the filter screen replaced by the handle 805 by loosening the knob, achieving efficient filtration and convenient maintenance.

Claims

1. A multi-stage oil removal filter for a screw vacuum pump, characterized by, The device includes a fixed frame (1), on the top surface of which a screw vacuum pump body (2) is mounted. The bottom surface of the screw vacuum pump body (2) is connected to a vertical pipe (6). The bottom end of the vertical pipe (6) is connected to a pipe (3). One end of the pipe (3) is provided with a flange (5). The pipe (3) is connected to an external pipe through the flange (5). One end of the external pipe is connected to an oil removal filter body (7). The oil removal filter body (7) is provided with a filter element assembly (8). The filter element assembly (8) includes a sealing plate (801). The bottom surface of the sealing plate (801) is equidistantly equipped with buckle plates (802), and the outer wall of the buckle plate (802) is in contact with the inner wall of the pipe (3). A filter screen (803) is embedded in the buckle plate (802).

2. The multi-stage oil removal filter for a screw vacuum pump according to claim 1, characterized in that, One end of the oil removal filter body (7) is rotatably connected to a connecting sleeve (10), and one end of the connecting sleeve (10) is threadedly connected to one end of the outer pipe.

3. A multi-stage oil removal filter for screw vacuum pumps according to claim 1, characterized in that, The outer walls of the oil filter body (7) are respectively provided with fixing components (9), and the fixing components (9) include knobs (901), which are threadedly connected to the two sides of the oil filter body (7).

4. A multi-stage oil removal filter for a screw vacuum pump according to claim 3, characterized in that, One end of the knob (901) is connected to a pin (902), and the sealing plate (801) has holes (804) on both sides that match the pin (902).

5. A multi-stage oil removal filter for a screw vacuum pump according to claim 4, characterized in that, A handle (805) is installed on the top surface of the sealing plate (801).

6. A multi-stage oil removal filter for a screw vacuum pump according to claim 5, characterized in that, A handle (903) is installed on one side of the outer wall of the knob (901).

7. A multi-stage oil removal filter for screw vacuum pumps according to claim 1, characterized in that, The pipe (3) is located inside the fixture (1).

8. A multi-stage oil removal filter for screw vacuum pumps according to claim 1, characterized in that, A control panel (4) is installed on one side of the top surface of the fixed frame (1).

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