Vortex type oil-gas separator

Abstract

The vortex type oil-gas separator comprises a cylinder body and an end cover, the top of the cylinder body is provided with an opening, the bottom of the end cover is provided with an opening, the edge of the top of the cylinder body is provided with a first connecting flange, and the edge of the bottom of the end cover is provided with a second connecting flange. The cylinder body and the end cover are fixedly connected through a first connecting flange and a second connecting flange, and the first connecting flange and the second connecting flange are fixedly connected through a bolt; an exhaust pipe is arranged in the center of the top of the end cover, the top end of the exhaust pipe is bent towards one side and is connected with a third connecting flange, the lower end of the exhaust pipe penetrates through the end cover and is fixedly connected with a spiral separation plate, and the spiral separation plate is located in the cylinder; the arrangement of the water retaining cap can effectively prevent oil liquid from rising, and meanwhile, the detachable spiral separation plate and the water retaining cap are adopted, so that later maintenance is facilitated; the maintenance steps are simplified, the maintenance efficiency is improved, and very good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of oil-gas separators, in particular to a vortex-type oil-gas separator. Background Art

[0002] In the process of drilling construction in soft and broken coal seams, wind slag removal is usually adopted. Although wind slag removal effectively reduces the waste hole rate, it will promote the three necessary conditions for spontaneous combustion of coal seams during the slag removal process, namely, high temperature generated by high-speed rotation of the drill bit, combustible materials and continuous ventilation and oxygen supply, thereby seriously reducing the safety of mine production. In response to this, some existing drilling construction projects have begun to try to use nitrogen as a slag removal medium. Nitrogen is produced by the nitrogen production device underground in the coal mine to supply the drill pipe, and the air flow formed by the nitrogen is used to discharge the slag generated by the drill bit cutting from the hole, which can effectively reduce the probability of spontaneous combustion of coal seams and improve the safety of mine production. The clean compressed air obtained after the external air needs to be separated from oil and gas, cooled and filtered by the air filter is transported to the nitrogen production unit through a conveying pipeline.

[0003] For example, patent CN221373843U discloses a dedicated oil-gas separator for variable frequency air compressors, which relates to the technical field of air compressors. This utility model comprises a support tube, a separation tube, a pressure-activated top cover, and a movable tube. The separation tube is movably connected to the upper portion of the support tube, and several filter housings are fixed to the inner wall of the separation tube. A pressure-activated top cover is located above the separation tube, and a transfer tube is fixedly connected to the top center of the pressure-activated top cover. A movable tube is located on the outside of the transfer tube, and the inner diameter of the movable tube is larger than the outer diameter of the transfer tube.

[0004] The above patent makes the oil-gas separation more thorough when the oil-gas separator is working, and is more convenient when replacing the separation component; however, the disadvantages of the above patent are: the overall structure is complex, and the external gas enters the separator directly into the separation component, and then the condensed oil droplets will be blown into the separation component again by the air introduced by the input pipe, affecting work efficiency.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the present utility model is to provide a vortex oil-gas separator to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] The vortex oil-gas separator comprises a cylinder and an end cover, the top opening of the cylinder is set, and the bottom opening of the end cover is set, and the top edge of the cylinder is set with a first connecting flange, and the bottom edge of the end cover is set with a second connecting flange, the cylinder and the end cover are fixedly connected by the first connecting flange and the second connecting flange, and the first connecting flange and the second connecting flange are fixedly connected by bolts; an exhaust pipe is set at the top center of the end cover, the top of the exhaust pipe is bent to one side and connected to the third connecting flange, the lower end of the exhaust pipe passes through the end cover and is fixedly connected to the spiral separation plate, and the spiral separation plate is located inside the cylinder; the upper end side wall of the cylinder is connected to the air intake pipe, and the end of the air intake pipe is provided with a second connecting flange; at the same time, the air intake pipe is located above the spiral separation plate; the bottom center of the cylinder is connected to the sewage pipe; the inner lower end of the cylinder is also provided with a water retaining cap, the water retaining cap is a conical shell as a whole, and the water retaining cap is fixedly mounted on the top of the liner by bolts, and the liner is fixedly mounted on the inner wall of the cylinder.

[0009] Furthermore, a sealing gasket is provided between the first connecting flange and the second connecting flange to ensure the sealing of the connection between the cylinder and the end cover.

[0010] Furthermore, the spiral separation plate includes a connecting cylinder and a spiral plate. The spiral plate is located on the outer side wall of the connecting cylinder, and the outer side of the spiral plate abuts against the inner wall of the cylinder.

[0011] Furthermore, a connecting circular hole is opened on the side wall of the connecting cylinder, and a connecting waist hole is opened and closed at the position corresponding to the connecting circular hole at the lower end of the exhaust pipe. The connecting cylinder is fixed to the lower end of the exhaust pipe by screwing bolts into the connecting circular hole and the connecting waist hole.

[0012] Furthermore, the liner is annular in shape and includes an integrally formed upper connecting ring and a mounting ring.

[0013] Furthermore, the bottom of the water retaining cap is provided with a plurality of oil drain ports in a circular array, and the oil droplets falling on the water retaining cap will flow from the top of the water retaining cap to the lining ring, and then flow from the oil drain ports to the bottom of the water retaining cap.

[0014] Furthermore, at least three mounting grooves arranged in a circular array are provided on the side wall of the mounting ring, and three mounting blocks are provided on the inner wall of the cylinder. The mounting blocks are arranged in a one-to-one correspondence with the mounting grooves. During installation, the mounting groove of the water retaining cap is stuck on the mounting block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The setting of the water retaining cap can effectively prevent the oil from rising. At the same time, the detachable spiral separation plate and water retaining cap are used to facilitate later maintenance; it simplifies maintenance steps and improves maintenance efficiency, and is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a vortex oil-gas separator.

[0018] Figure 2 This is a front view of the vortex oil-gas separator.

[0019] Figure 3 It is a side view of the vortex oil-gas separator.

[0020] Figure 4 This is a top view of the vortex oil-gas separator.

[0021] Figure 5 for Figure 3 Cross-sectional view along the AA axis.

[0022] Figure 6 This is an exploded view of a vortex oil-gas separator.

[0023] Figure 7 This is a schematic diagram of the structure of the water retaining cap and liner in the vortex oil-gas separator.

[0024] Figure 8 This is a front view of the water retaining cap and bushing in the vortex oil-gas separator.

[0025] Figure 9 for Figure 8 Cross-sectional view along the BB direction. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-9 , vortex oil-gas separator, including a cylinder 1 and an end cover 2,

[0028] The top of the cylinder 1 is open, and the bottom of the end cover 2 is open. The top edge of the cylinder 1 is provided with a first connecting flange 3, and the bottom edge of the end cover 2 is provided with a second connecting flange 4.

[0029] The cylinder 1 and the end cover 2 are fixedly connected by a first connecting flange 3 and a second connecting flange 4. The first connecting flange 3 and the second connecting flange 4 are fixedly connected by bolts (not shown in the figure), and a sealing gasket 5 is further provided between the first connecting flange 3 and the second connecting flange 4 to ensure the sealing of the connection between the cylinder 1 and the end cover 2;

[0030] An exhaust pipe 6 is provided at the center of the top of the end cover 2. The top end of the exhaust pipe 6 is bent to one side and connected to a third connecting flange 7 for communicating with the exhaust pipe. The lower end of the exhaust pipe 6 passes through the end cover 2 and is fixedly connected to a spiral separation plate 8, and the spiral separation plate 8 is located inside the cylinder 1.

[0031] In this embodiment, the spiral separation plate 8 includes a connecting cylinder 9 and a spiral plate 10. The spiral plate 10 is located on the outer wall of the connecting cylinder 9, and the outer side of the spiral plate 10 abuts against the inner wall of the cylinder 1.

[0032] At the same time, a connecting circular hole 11 is opened on the side wall of the connecting cylinder 9, and a connecting waist hole 12 is opened and closed at the position corresponding to the connecting circular hole 11 at the lower end of the exhaust pipe 6. The connecting cylinder 9 is fixed to the lower end of the exhaust pipe 6 by screwing bolts (not shown in the figure) into the connecting circular hole 11 and the connecting waist hole 12;

[0033] In this embodiment, an air inlet pipe 13 is provided on the upper side wall of the cylinder 1, and a second connecting flange 14 is provided at the end of the air inlet pipe 13 for connecting with the air inlet pipeline; at the same time, the air inlet pipe 13 is located above the spiral separation plate 8;

[0034] A drain pipe 14 is provided at the center of the bottom of the cylinder 1 for discharging the separated oil. In order to prevent the oil collected at the bottom of the cylinder 1 from being sucked up by the exhaust pipe 6, a water retaining cap 15 is provided at the lower end of the interior of the cylinder 1. The water retaining cap 15 is a conical shell as a whole and is fixedly mounted on the top of a liner 16 by bolts (not shown in the figure). The liner 16 is fixedly mounted on the inner wall of the cylinder 1.

[0035] Specifically, the liner 16 is annular and includes an integrally formed upper connecting ring 17 and a mounting ring 18.

[0036] In this embodiment, the bottom of the water retaining cap 15 is provided with a plurality of oil drain ports 19 in a circular array. The oil droplets falling on the water retaining cap 15 will flow from the top of the water retaining cap 15 to the lining ring 16, and then flow from the oil drain ports 19 to the bottom of the water retaining cap 15.

[0037] At the same time, in this solution, at least three mounting grooves 20 arranged in a circular array are provided on the side wall of the mounting ring 18, and three mounting blocks 21 are provided on the inner wall of the cylinder 1. The mounting blocks 21 are arranged in a one-to-one correspondence with the mounting grooves 20. During installation, the mounting grooves 20 of the water retaining cap 15 are stuck on the mounting blocks 21;

[0038] When the present invention is in use, the oil-gas mixture enters the interior of the cylinder 1 through the air inlet pipe 13. This part of the mixture passes through the spiral separation plate 8 and spirals downward. First, the spiral separation plate and the inner wall of the cylinder 1 form a spiral condensation channel. At this time, the oil in the oil-gas mixture will condense into oil droplets and fall, and the gas will enter the exhaust pipe 6 from the bottom of the exhaust pipe 6 and be discharged.

[0039] The falling oil droplets that fall on the water stop cap 15 will flow from the top of the water stop cap 15 to the liner 16, and then flow from the oil discharge port 19 to the bottom of the water stop cap 15, and finally be discharged from the sewage pipe 14. Due to the setting of the water stop cap 15, the oil droplets collected at the bottom of the cylinder 1 are not easy to rise. At the same time, the spiral separation plate and the inner wall of the cylinder 1 form a spiral condensation channel, which will guide the airflow to form a spiral downward airflow in the outer circle inside the cylinder, making it more difficult for the oil droplets to rise along the inner wall of the cylinder.

[0040] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use, or the positions or locations commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific position, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A vortex oil-gas separator, comprising a cylinder and an end cover, characterized in that: The top opening of the cylinder is set, and the bottom opening of the end cover is set, and the top edge of the cylinder is provided with a first connecting flange, and the bottom edge of the end cover is provided with a second connecting flange, the cylinder and the end cover are fixedly connected by the first connecting flange and the second connecting flange, and the first connecting flange and the second connecting flange are fixedly connected by bolts; an exhaust pipe is set at the top center of the end cover, the top of the exhaust pipe is bent to one side and connected to the third connecting flange, the lower end of the exhaust pipe passes through the end cover and is fixedly connected to a spiral separation plate, and the spiral separation plate is located inside the cylinder; the upper end side wall of the cylinder is connected to an air intake pipe, and the end of the air intake pipe is provided with a second connecting flange; at the same time, the air intake pipe is located above the spiral separation plate; the bottom center of the cylinder is connected to a sewage pipe; a water retaining cap is also provided at the lower end of the interior of the cylinder, and the water retaining cap is a conical shell as a whole, and the water retaining cap is fixedly mounted on the top of the liner by bolts, and the liner is fixedly mounted on the inner wall of the cylinder.

2. The vortex oil-gas separator according to claim 1, characterized in that: A sealing gasket is further provided between the first connecting flange and the second connecting flange to ensure the sealing of the connection between the cylinder and the end cover.

3. The vortex oil-gas separator according to claim 1, characterized in that: The spiral separation plate includes a connecting cylinder and a spiral plate. The spiral plate is located on the outer side wall of the connecting cylinder, and the outer side of the spiral plate abuts against the inner wall of the cylinder.

4. The vortex oil-gas separator according to claim 3, characterized in that: A connecting circular hole is opened on the side wall of the connecting cylinder, and a connecting waist hole is opened and closed at the position corresponding to the connecting circular hole at the lower end of the exhaust pipe. The connecting cylinder is fixed to the lower end of the exhaust pipe by screwing bolts into the connecting circular hole and the connecting waist hole.

5. The vortex oil-gas separator according to claim 1, characterized in that: The liner is in the shape of a circular ring and comprises an upper connecting ring and a mounting ring which are integrally formed.

6. The vortex oil-gas separator according to claim 5, characterized in that: The bottom of the water retaining cap is provided with a plurality of oil drain ports in a circular array. The oil droplets falling on the water retaining cap will flow from the top of the water retaining cap to the lining ring, and then flow from the oil drain ports to the bottom of the water retaining cap.

7. The vortex oil-gas separator according to claim 6, characterized in that: At least three mounting grooves arranged in a circular array are provided on the side wall of the mounting ring, and three mounting blocks are provided on the inner wall of the cylinder. The mounting blocks are arranged in a one-to-one correspondence with the mounting grooves. During installation, the mounting groove of the water retaining cap is stuck on the mounting block.

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