Oil separation core for oil-gas separator and oil-gas separation device

Abstract

The utility model relates to an oil-gas separator oil separation core and an oil-gas separation device, the oil separation core comprises a cylindrical filter core body, an upper sealing cover and a lower end cover, the upper sealing cover and the lower end cover are arranged at two ends of the cylindrical filter core body, the lower end cover is provided with an axial through part communicated with the inside of the cylindrical filter core body, and the lower end cover is divided into three sections along the axial direction, the upper end face of the upper section is provided with an annular butt joint groove which is assembled with the lower end face of the cylindrical filter element body in a butt joint manner; an annular flange vertically connected with the outer bottom face of the annular butt joint groove is formed on the outer wall of the axial through part of the middle section of the lower end cover, and a sealing ring groove is formed in the outer wall of the annular flange so that a sealing ring can be installed, and the sealing ring and the inner wall of the connecting sleeve can be assembled in a sealed mode. And an external thread is formed on the outer wall of the lower section of the lower end cover so as to be in threaded connection with a connecting sleeve on a bottom plate of an inner barrel of the separator. The oil separation core and the oil-gas separation device are high in connection stability and strong in impact resistance, and the oil separation core is simpler to produce and process and low in processing cost.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump equipment technology, specifically to an oil separator core and an oil-gas separation device for an oil-gas separator. Background Technology

[0002] Oil-gas separators are mainly used in vacuum systems to separate the oil and gas mixture discharged from the system. For example, the oil-gas separator for a vacuum pump disclosed in Chinese Utility Model Patent CN221824067U uses a plug-in connection between the oil separator core and the connecting sleeve on the inner tank bottom plate. This plug-in connection is very short, resulting in poor connection stability, low impact resistance, and a tendency to loosen. Other installation structures exist, but these suffer from drawbacks such as cumbersome manufacturing and high cost. Summary of the Invention

[0003] The purpose of this utility model is to address the above-mentioned problems by providing an oil separator core and an oil-gas separation device for an oil-gas separator.

[0004] This utility model is achieved through the following technical solution: an oil separator core for an oil-gas separator, comprising a cylindrical filter core and an upper sealing cap and a lower end cap disposed at both ends of the cylindrical filter core. The lower end cap has an axially penetrating portion communicating with the interior of the cylindrical filter core. The lower end cap is divided into three sections along the axial direction. The upper end surface of the upper section is provided with an annular mating groove that is assembled with the lower end surface of the cylindrical filter core. An annular flange is formed on the outer wall of the axially penetrating portion of the middle section of the lower end cap, which is perpendicularly connected to the outer bottom surface of the annular mating groove. A sealing ring groove is formed on the outer wall of the annular flange to install a sealing ring and achieve a sealed assembly with the inner wall of the connecting sleeve. An external thread is formed on the outer wall of the lower section of the lower end cap to be threadedly connected with the connecting sleeve on the bottom plate of the separator inner barrel.

[0005] The axial length of the upper annular flange is 1.0cm-1.5cm, the axial length of the middle annular flange is 1.0cm-1.5cm, and the width of the sealing ring groove is 0.4cm-0.6cm; the axial length of the lower external thread section is 2.0cm-2.5cm, that is, the part connected to the connecting sleeve is 3cm-4cm.

[0006] This utility model also provides an oil-gas separation device, including the aforementioned oil separator core, and a barrel-shaped body with a flange at the opening. A first bottom plate and a second bottom plate are respectively arranged at intervals in the lower part of the barrel-shaped body. The periphery of the first bottom plate is sealed and welded to the inner wall of the barrel-shaped body. The first bottom plate has several oil separator core mounting holes, and each oil separator core mounting hole has a through connecting sleeve. Each connecting sleeve is connected to the external threaded section of the lower end cap of the oil separator core. The inner wall of the connecting sleeve is also formed with a stepped portion corresponding to the shape of the outer wall of the lower end cap of the oil separator core. A sealing ring is provided in the sealing ring groove of the annular flange of the lower end cap on the inner side wall of the stepped portion. The connecting sleeve is sealed to the edge of the oil separator core mounting hole of the first bottom plate by welding. The first bottom plate also has a connecting screw hole, and a recessed oil-collecting pipe is connected to the connecting screw hole, and the oil-collecting pipe passes through the second bottom plate. The second bottom plate has several vent holes.

[0007] This utility model of oil separator core and oil-gas separation device has high connection stability and strong impact resistance. Moreover, the production and processing of oil separator core is simpler and the processing cost is lower. The oil-gas separation device has a sinking oil collection pipe for collecting oil stains attached to the outer wall of the oil separator core, which is conducive to the collection of oil stains for suction and removal. The second bottom plate can reduce the impact of airflow on the oil separator core, and at the same time increase the contact and collision with oil and gas, which is conducive to further adhesion of oil droplets or oil mist, reducing the oil content of the oil and gas entering the oil separator core, and helping to extend the service life of the oil separator core. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view of the oil separator core of this utility model;

[0009] Figure 2 This is a cross-sectional view of the oil-gas separation device of this utility model. Detailed Implementation

[0010] The present invention will be further illustrated below with reference to specific examples and accompanying drawings.

[0011] like Figures 1-2As shown, the oil separator core for the oil-gas separator of this utility model includes a cylindrical filter core 1 and an upper sealing cap 2 and a lower end cap 3 disposed at both ends of the cylindrical filter core 1. The lower end cap 3 has an axially penetrating portion 30 communicating with the interior of the cylindrical filter core 1. The lower end cap 3 is divided into three sections along the axial direction. The upper end surface of the upper section is provided with an annular mating groove 31 that is assembled with the lower end surface of the cylindrical filter core 1. An annular flange 32 is formed on the outer wall of the axially penetrating portion 30 of the middle section of the lower end cap 3, which is perpendicular to the outer bottom surface of the annular mating groove 31. A sealing ring groove 321 is formed on the outer wall of the annular flange 32 to install a sealing ring 322, which is sealed and assembled with the inner wall of the connecting sleeve 43. An external thread, i.e., an external thread section 33, is formed on the lower outer wall of the lower section of the lower end cap 3 to be threadedly connected with the connecting sleeve 43 on the bottom plate of the separator inner barrel. The outer diameters of the upper, middle, and lower sections are 11.5±0.5cm, 8.5±0.5cm, and 7.0±0.5cm, respectively; the lengths of the upper, middle, and lower sections are 1.2±0.5cm, 1.1±0.5cm, and 2.1±0.5cm, respectively.

[0012] The upper section has an axial length of 1.0cm-1.5cm, the middle section has an annular flange 32 with an axial length of 1.0cm-1.5cm, and the sealing ring groove 321 has a width of 0.4cm-0.6cm; the lower section has an external thread section 33 with an axial length of 2.0cm-2.5cm, that is, the part that connects with the connecting sleeve 43 is 3cm-4cm. The threaded connection and sealing insertion are combined, which ensures both sealing performance and connection stability. Moreover, the lower end cap is simple and quick to process, which helps to reduce costs.

[0013] This utility model also provides an oil-gas separation device, including several oil separator cores as described above, and a barrel-shaped body 4 with a flange at the opening. In this embodiment, seven oil separator cores are installed inside the barrel-shaped body 4. A first bottom plate 41 and a second bottom plate 42 are respectively arranged at intervals inside the lower part of the barrel-shaped body 4. The periphery of the first bottom plate 41 is sealed and welded to the inner wall of the barrel-shaped body 4. Several oil separator core mounting holes 411 are provided on the first bottom plate 41. A through connecting sleeve 43 is provided in each oil separator core mounting hole 411. Each connecting sleeve 43 is connected to the external thread section 3 of the lower end cap 3 of the oil separator core. 3. The inner wall of the connecting sleeve 43 is also formed with a stepped portion 431 corresponding to the shape of the outer wall of the lower end cover 3 of the oil separator core. The inner side wall of the stepped portion 431 and the sealing ring groove 321 of the annular flange 32 of the lower end cover 3 are provided with a sealing ring 322. The connecting sleeve 43 and the edge of the oil separator core mounting hole 411 of the first base plate 41 are sealed by welding. The first base plate 41 is also provided with a connecting screw hole 412. A recessed oil collection tube 44 is connected to the connecting screw hole 412, and the oil collection tube 44 passes through the second base plate 42. The second base plate 42 is provided with several vent holes 421.

[0014] This utility model of oil separator core and oil-gas separation device has high connection stability and strong impact resistance. Moreover, the production and processing of oil separator core is simpler and the processing cost is lower. The oil-gas separation device has a sinking oil collection pipe for collecting oil stains attached to the outer wall of the oil separator core, which is conducive to the collection of oil stains on the outer wall for suction and removal. The second bottom plate can reduce the impact of airflow on the oil separator core, and at the same time increase the contact and collision with oil and gas, which is conducive to further adhesion of oil droplets or oil mist, reducing the oil content of the oil and gas entering the oil separator core, and helping to extend the service life of the oil separator core.

[0015] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. An oil separator core for an oil-gas separator, comprising a cylindrical filter core and an upper sealing cap and a lower end cap disposed at both ends of the cylindrical filter core, characterized in that: The lower end cover has an axially penetrating portion that communicates with the interior of the cylindrical filter core. The lower end cover is divided into three sections along the axial direction. The upper end face of the upper section is provided with an annular mating groove that is assembled with the lower end face of the cylindrical filter core. An annular flange is formed on the outer wall of the axially penetrating portion of the middle section of the lower end cover. It is perpendicular to the outer bottom surface of the annular mating groove, and a sealing ring groove is formed on the outer wall of the annular flange. An external thread is formed on the outer wall of the lower section of the lower end cover.

2. The oil separator core for an oil-gas separator according to claim 1, characterized in that: The upper section has an axial length of 1.0cm-1.5cm, the middle section has an annular flange with an axial length of 1.0cm-1.5cm, and the sealing ring groove has a width of 0.4cm-0.6cm; the lower section has an external thread with an axial length of 2.0cm-2.5cm, that is, the part that connects with the connecting sleeve is 3cm-4cm.

3. An oil-gas separation device, characterized in that: The device includes the oil separator core as described in claim 1; it also includes a barrel-shaped body with a flange at the opening, a first bottom plate and a second bottom plate arranged at intervals in the lower part of the barrel-shaped body, the periphery of the first bottom plate being sealed and welded to the inner wall of the barrel-shaped body, the first bottom plate having several oil separator core mounting holes, each oil separator core mounting hole having a through connecting sleeve, each connecting sleeve being connected to the external threaded section of the lower end cap of the oil separator core, and the inner wall of the connecting sleeve also having a stepped portion corresponding to the shape of the outer wall of the lower end cap of the oil separator core, the inner side wall of the stepped portion being provided with a sealing ring groove in the sealing ring groove of the annular flange of the lower end cap; the connecting sleeve and the edge of the oil separator core mounting hole of the first bottom plate being sealed by welding; the first bottom plate also having a connecting screw hole, a recessed oil collection tube being connected to the connecting screw hole, and the oil collection tube passing through the second bottom plate, the second bottom plate having several vent holes.

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