Compressor inlet filter

Abstract

The utility model discloses a compressor inlet filter, including the hollow outer casing, the one end of outer casing is provided with the joint pipe, and the other end of outer casing is evenly provided with a plurality of air inlet holes, and is provided with the filter device in the outer casing, the joint pipe and compressor air inlet's connecting end all are provided with the flange plate, and is provided with the sealing ring between the flange plate. The utility model discloses through arranging the sealing ring between the joint pipe and the flange plate of compressor air inlet, and the support protruding of the notch groove of cooperation sealing ring on the flange plate is arranged, to be tightly stuck on the inner wall of the sealing ring groove of flange plate with sealing ring, and then the sealing between the flange plate is improved, and the impurity in the air is avoided and enters the inside of compressor along the gap, and then the efficiency and the service life of equipment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment equipment, specifically to a compressor inlet filter. Background Technology

[0002] The main function of a compressor is to compress low-pressure gas into high-pressure gas through mechanical work, providing energy conversion and circulation power for refrigeration, industrial power, and other systems. It plays an important role in industrial production. Since many compressors are mainly used in production workshops, which inevitably contain dust, particulate matter, and other impurities, if this gas containing impurities enters the compressor directly through the compressor's inlet, it will cause wear on internal components such as cylinders and piston rings, thereby reducing the efficiency and service life of the equipment. Therefore, a filter needs to be installed at the compressor's inlet to filter out impurities in the air. The filter and the compressor's inlet are generally connected by a flange. Therefore, ensuring the airtightness of the flange connection is of paramount importance to ensuring the safe operation of the compressor. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a compressor inlet filter to solve the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: a compressor inlet filter, comprising a hollow outer shell, a connector pipe provided at one end of the outer shell, a plurality of air inlet holes evenly distributed at the other end of the outer shell, a filter device provided inside the outer shell, and flanges provided at the connection ends of the connector pipe and the compressor air inlet, with sealing rings provided between the flanges;

[0005] The flange of the connector pipe is provided with an annular groove. One end of the sealing ring is inserted into the annular groove, and the other end of the sealing ring extends outward from the annular groove. The flange of the air inlet is provided with a sealing ring groove. A notch is provided in the middle of the end of the sealing ring that extends outward from the annular groove. A support protrusion is provided on the inner wall of the sealing ring groove. The support protrusion is inserted into the notch, and the side wall of the support protrusion abuts against the inner wall of the notch.

[0006] Furthermore, the inner wall of the notch has an arc-shaped structure, and the sidewall of the supporting protrusion is adapted to the arc-shaped surface of the notch.

[0007] Furthermore, the two flanges are circumferentially fastened together by bolts, which are located outside the sealing ring.

[0008] Furthermore, the filtration device includes a cylindrical outer frame with an opening at one end, the bottom wall of the outer frame is a mesh structure, a filter element is disposed inside the outer frame, and filter screens are disposed inside the outer frame at positions corresponding to both sides of the filter element.

[0009] Furthermore, the diameter of the connector tube is smaller than the diameter of the outer shell, the side of the cylindrical outer frame with the mesh structure abuts against the inner edge of the outer shell, the end of the outer shell away from the connector tube is an open structure, a cover plate is provided at the opening of the outer shell, and the air inlets are evenly distributed on the cover plate.

[0010] Furthermore, a connector is provided at one end of the cover plate that connects to the outer shell, and an internal thread is provided on the inner wall of the outer shell at its open end. An external thread is provided on the outer side of the connector, and the connector of the cover plate is threadedly connected to the opening of the outer shell.

[0011] Furthermore, the end of the connector abuts against the port of the outer frame.

[0012] The above-mentioned technical solution of this utility model has the following beneficial effects: By arranging a sealing ring between the connector pipe and the flange of the compressor inlet, and setting a support protrusion on the flange to match the notch groove of the sealing ring, the sealing ring is tightly pressed against the inner wall of the sealing ring groove of the flange, thereby improving the sealing performance between the flanges, preventing impurities in the air from entering the interior of the compressor along the gap, and thus ensuring the efficiency and service life of the equipment. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1-2 As shown, this utility model embodiment provides a compressor inlet filter, including a hollow outer shell 1, a connector pipe 2 is provided at one end of the outer shell 1, and a plurality of air inlet holes 3 are evenly distributed at the other end of the outer shell 1. A filter device is provided inside the outer shell 1, and a flange 4 is provided at the connection end of the connector pipe 2 and the compressor air inlet 8. A sealing ring 5 is provided between the flanges 4.

[0019] The flange 4 of the connector pipe 2 is provided with an annular groove. One end of the sealing ring 5 is inserted into the annular groove, and the other end of the sealing ring 5 extends outward from the annular groove. The flange 4 of the air inlet 8 is provided with a sealing ring groove. The middle part of the end of the sealing ring 5 that extends out of the annular groove is provided with a notch 5a. The notch 5a makes the part of the sealing ring 5 that extends out of the annular groove form two symmetrical sealing protrusions. The sealing ring groove is provided with a support protrusion 6 on its inner wall. The support protrusion 6 is inserted into the notch 5a, and the side wall of the support protrusion 6 abuts against the inner wall of the notch 5a.

[0020] The inner wall of the notch has an arc-shaped structure, and the side wall of the supporting protrusion 6 is adapted to the arc-shaped surface of the notch.

[0021] The two flanges 4 are circumferentially fastened together by bolts 7, which are located outside the sealing ring 5.

[0022] The filtration device includes a cylindrical outer frame 9 with an opening at one end. The bottom wall of the outer frame 9 is a mesh structure 10. A filter element 11 is installed inside the outer frame 9. The filter element can be made of filter paper, filter cloth, filter cotton, or other materials. Filter screens 10 are installed inside the outer frame 9 at positions corresponding to both sides of the filter element 11.

[0023] Air is filtered through the filter element 11 and the filter plates 10 on both sides.

[0024] The diameter of the connector tube 2 is smaller than the diameter of the outer shell 1. The cylindrical outer frame 9 with the mesh structure 10 abuts against the inner edge of the outer shell 1. The end of the outer shell 1 away from the connector tube 2 is an open structure. A cover plate 13 is provided at the opening of the outer shell 1, and air inlets 3 are evenly distributed on the cover plate 13.

[0025] The end of the cover plate 13 connected to the outer shell 1 is provided with a connector 14. The inner wall of the outer shell 1 at its open end is provided with an internal thread, and the outer side of the connector 14 is provided with an external thread. The connector 14 of the cover plate 13 is threadedly connected to the opening of the outer shell 1.

[0026] The end of connector 14 abuts against the port of outer frame 9.

[0027] During assembly, the outer frame 9 of the filter device is first placed inside the outer shell 1, and then the cover plate 13 is tightened. The connector 14 of the cover plate 13 and the inner edge of the outer shell 1 fix the filter device. Then, the flange 4 of the connector pipe 2 is connected to the flange 4 of the air inlet 8. The two ends of the sealing ring are respectively inserted into the sealing groove and the sealing ring groove. The bolts 7 are used to tighten the two flanges 4. As the two flanges 4 are clamped together, the support protrusion 6 in the sealing ring groove is inserted into the notch 5a of the sealing ring 5. The support protrusion 6 is close to the inner wall of the notch 5a of the sealing ring 5, so that the two sealing protrusions of the support protrusion 6 are tightly attached to the inner wall of the sealing ring groove, thus improving the sealing performance between the two flanges 4.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A compressor inlet filter, characterized in that: The device includes a hollow outer shell, one end of which is provided with a connector pipe, and the other end of which is provided with a plurality of air inlets. A filter device is provided inside the outer shell, and the connection ends of the connector pipe and the compressor air inlet are provided with flanges, and sealing rings are provided between the flanges. The flange of the connector pipe is provided with an annular groove. One end of the sealing ring is inserted into the annular groove, and the other end of the sealing ring extends outward from the annular groove. The flange of the air inlet is provided with a sealing ring groove. A notch is provided in the middle of the end of the sealing ring that extends outward from the annular groove. A support protrusion is provided on the inner wall of the sealing ring groove. The support protrusion is inserted into the notch, and the side wall of the support protrusion abuts against the inner wall of the notch.

2. The compressor inlet filter according to claim 1, characterized in that: The inner wall of the notch has an arc-shaped structure, and the side wall of the supporting protrusion is adapted to the arc-shaped surface of the notch.

3. The compressor inlet filter according to claim 2, characterized in that: The two flanges are circumferentially fastened together by bolts, which are located outside the sealing ring.

4. The compressor inlet filter according to claim 1, characterized in that: The filtration device includes a cylindrical outer frame with an opening at one end. The bottom wall of the outer frame is a mesh structure. A filter element is disposed inside the outer frame, and filter screens are disposed inside the outer frame at positions corresponding to both sides of the filter element.

5. The compressor inlet filter according to claim 4, characterized in that: The diameter of the connector tube is smaller than the diameter of the outer shell. The cylindrical outer frame with a mesh structure abuts against the inner edge of the outer shell. The end of the outer shell away from the connector tube is an open structure. A cover plate is provided at the opening of the outer shell. The air inlets are evenly distributed on the cover plate.

6. The compressor inlet filter according to claim 5, characterized in that: The end of the cover plate connected to the outer shell is provided with a connector. The inner wall of the outer shell is provided with an internal thread at its open end, and the outer side of the connector is provided with an external thread. The connector of the cover plate is threadedly connected to the opening of the outer shell.

7. The compressor inlet filter according to claim 6, characterized in that: The end of the connector abuts against the port of the outer frame.

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