Oil-gas separator assembly

Abstract

The utility model relates to an oil-gas separator assembly which comprises a separator outer barrel, a flange barrel cover and an oil-gas filtering assembly arranged in the separator outer barrel, the oil-gas filtering assembly comprises an inner barrel with a barrel opening provided with a flange, and the inner barrel is connected with the separator outer barrel and the flange barrel cover through the flange; a plurality of oil separation core mounting seats for mounting oil separation cores are arranged on a bottom plate of the inner barrel, the oil separation cores are respectively mounted on the oil separation core mounting seats, and inlets of the oil separation cores face downwards and are communicated with the interior of the separator outer barrel; a connecting through hole is further formed in the edge of a bottom plate of the inner barrel, a sunken oil gathering pipe is connected to the connecting through hole, an oil suction pipe is further arranged on the flange barrel cover in a penetrating mode, the inner end of the oil suction pipe extends into the bottom of the oil gathering pipe, and the outer end of the oil suction pipe is sequentially connected with a first one-way valve and an oil return pipe so as to be connected with a vacuum pump main machine through the oil return pipe. The oil-gas separator assembly has the advantages of being convenient to maintain and clean, good in oil-gas separation effect, long in service life, low in maintenance cost and the like.

Description

Technical Field

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

[0002] Oil-gas separators are mainly used in vacuum systems to separate oil and gas mixtures discharged from the system. For example, the oil-gas separator for a vacuum pump disclosed in Chinese Utility Model Patent CN221824067U has an inner barrel that is integrally formed with the outer barrel and cannot be disassembled. This structure makes it inconvenient to replace the oil separator element (oil-gas separator filter element) and clean and maintain the barrel. Furthermore, during use, oil stains accumulate on the outer wall of the oil separator element, and oil accumulates on the bottom plate of the inner barrel. If not removed promptly, it can easily lead to problems such as oil buildup or coking. The more oil accumulates, the less effective the filtration becomes, resulting in substandard oil and gas content in the exhaust. Moreover, when the oil-gas mixture enters the outer barrel tangentially, high-speed rotation separates large oil droplets, which then directly enter the oil separator element, causing significant impact and shortening its lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide an oil-gas separator assembly to address the above-mentioned problems.

[0004] This utility model is achieved through the following technical solution: an oil-gas separator assembly, including an outer separator barrel, a flange barrel cover, and an oil-gas filter assembly disposed inside the outer separator barrel. An oil-gas mixture inlet pipe is connected to the side wall of the outer separator barrel, and an exhaust pipe is connected to the flange barrel cover. The oil-gas filter assembly includes an inner barrel with a flange at its opening, which is connected to the outer separator barrel and the flange barrel cover via the flange. The bottom plate of the inner barrel has several oil separator mounting seats for installing oil separator cores, and oil separator cores are installed on each seat. The inlets of the oil separator cores face downwards and communicate with the interior of the outer separator barrel. A connecting through hole is also provided at the edge of the bottom plate of the inner barrel, and a recessed oil collection pipe is connected to this connecting through hole. An oil suction pipe is also inserted through the flange barrel cover, with the inner end of the oil suction pipe extending into the bottom of the oil collection pipe. The outer end of the oil suction pipe is sequentially connected to a first one-way valve and a return oil pipe, which is then connected to a vacuum pump main unit via the return oil pipe.

[0005] A baffle is also connected to the bottom plate of the inner tub, and the baffle has several through holes.

[0006] The exhaust pipe of the flange barrel cover is vertically upward and connected to a bend and a large tee in sequence. The outlet of the bend is connected to the large tee in the horizontal direction. The exhaust port of the large tee is upward. The lower pipe port arranged coaxially with the exhaust port is connected to a lower cover. The middle opening of the lower cover is connected to a second check valve. The second check valve is connected to the return oil pipe and the first check valve through a small tee.

[0007] In this invention, the inner barrel and outer barrel of the oil-gas filter assembly adopt a separate and detachable structure. The oil-gas filter assembly can be completely disassembled to the outside of the assembly for replacement, maintenance, and cleaning, improving convenience and thoroughness of cleaning. The oil collection pipe, oil suction pipe, and oil return pipe can remove oil stains adhering to the outer wall of the oil separator core without additional power, which helps to prevent the formation of oil sludge and coking due to the inability to drain oil from the inner barrel, thus avoiding problems such as increased maintenance difficulty and high cost in the later stage. Therefore, the oil-gas separator assembly of this invention has the advantages of convenient maintenance, convenient cleaning, good oil-gas separation effect, long service life, and low maintenance cost. Attached Figure Description

[0008] Fig. 1 This is a perspective view of the oil-gas separator assembly of this utility model;

[0009] Fig. 2 This is a cross-sectional view of the present invention. Detailed Implementation

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

[0011] like Figs. 1-2 As shown, this utility model discloses an oil-gas separator assembly, including an outer separator barrel 1, a flanged barrel cover 2, and an oil-gas filter assembly 3 disposed inside the outer separator barrel 1. An oil-gas mixture inlet pipe 11 is connected to the side wall of the outer separator barrel 1, and an exhaust pipe 21 is connected to the flanged barrel cover 2. The oil-gas mixture enters the outer separator barrel 1 tangentially from the oil-gas mixture inlet pipe 11, generating high-speed centrifugal force to separate a portion of the oil droplets. The gas, after further separation by the oil-gas filter assembly 3, is discharged from the exhaust pipe 21. The oil-gas filter assembly 3 includes an inner barrel 31 with a flange at its opening. This inner barrel 31 is connected to the outer separator barrel 1 and the flanged barrel cover 2 via the flange and is lockable. The inner tank 31 has a bottom plate 32 with several oil separator mounting seats 33 for mounting oil separator cores, and each oil separator core 34 is mounted thereon. The inlet of the oil separator core 34 faces downward and communicates with the interior of the outer tank 1 of the separator. The bottom plate 32 of the inner tank 31 is welded to the inner tank 31 and is fixed and sealed. A connecting through hole 321 is also provided at the edge of the bottom plate 32 of the inner tank 31. A recessed oil collection pipe 35 is connected to the connecting through hole 321. An oil suction pipe 22 is also installed on the flange cover 2. The inner end of the oil suction pipe 22 extends into the bottom of the oil collection pipe 35, and the outer end of the oil suction pipe 22 is connected to the first one-way valve 23 and the return oil pipe 24 in sequence, so as to connect to the vacuum pump host through the return oil pipe 24. The oil collection pipe 35 can collect the oil leaking from the oil separator core 34 and promptly suck it away through the oil suction pipe 22, and return it to the vacuum pump for reuse through the first one-way valve 23 and the return oil pipe 24.

[0012] A baffle 36 is also connected below the bottom plate 32 of the inner barrel 31. The baffle 36 has several through holes 361. The baffle 36 can play a buffering and blocking role. That is, the high-speed rotating airflow passes through the baffle 36 and is dispersed before entering the oil separator core 34, thereby buffering the impact on the oil separator core 34. At the same time, the baffle 36 can also adhere some oil droplets or oil mist, which can reduce the oil content in the oil and gas entering the oil separator core, thereby extending the service life of the oil separator core 34. The baffle and the inner wall of the inner barrel can be fixedly connected or detachably connected.

[0013] The vent pipe 21 of the flange cover 2 is vertically upward and connected in sequence to a bend 211 and a large tee 212. The outlet of the bend 211 is horizontally connected to the large tee 212. The vent of the large tee 212 faces upward. A lower cover 213 is connected to the lower pipe opening arranged coaxially with the vent. A second check valve 214 is connected to the middle opening of the lower cover 213. The second check valve 214 is connected to the return oil pipe 24 and the first check valve 23 through a small tee 215. Connection; Through this structure, the gas discharged from the exhaust pipe 21 of the flange cover 2 is discharged upward through the bend 211 and the large tee 212. A very small amount of oil mist will adhere to the inner wall of the large tee 212 and slowly accumulate in the lower cover 213 at the bottom of the flow channel. When returning oil, it can also be automatically returned to the vacuum pump host through the second one-way valve 214, the small tee 215 and the return oil pipe 24. That is, the return oil pipe 24 connects two parallel return oil branches through the small tee 215.

[0014] In this embodiment, both the first check valve and the second check valve are visual check valves, which are easy to observe. Of course, the outer barrel 1 of the separator is also equipped with an oil sight glass, a pressure relief valve, an oil drain valve, an oil filling port, an oil unloading port, an oil outlet, a temperature sensor and other structures. These are conventional settings and will not be described in detail.

[0015] In this invention, the inner barrel and outer barrel of the oil-gas filter assembly adopt a separate and detachable structure. The oil-gas filter assembly can be completely disassembled to the outside of the assembly for replacement, maintenance, and cleaning, improving convenience and thoroughness of cleaning. The oil collection pipe, oil suction pipe, and oil return pipe can remove oil stains adhering to the outer wall of the oil separator core without additional power, which helps to prevent the formation of oil sludge and coking due to the inability to drain oil from the inner barrel, thus avoiding problems such as increased maintenance difficulty and high cost in the later stage. Therefore, the oil-gas separator assembly of this invention has the advantages of convenient maintenance, convenient cleaning, good oil-gas separation effect, long service life, and low maintenance cost.

[0016] 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-gas separator assembly, comprising an outer separator barrel, a flange cover, and an oil-gas filter assembly disposed inside the outer separator barrel, wherein an oil-gas mixture inlet pipe is connected to the side wall of the outer separator barrel, and an exhaust pipe is connected to the flange cover; characterized in that: The oil-gas filtration assembly includes an inner barrel with a flange at its opening, which is connected to the outer barrel of the separator and the flange cover via the flange. The bottom plate of the inner barrel has several oil separator mounting seats, each with an oil separator installed. The inlet of each oil separator faces downwards and communicates with the interior of the outer barrel. A connecting through hole is also provided at the edge of the bottom plate of the inner barrel, through which a recessed oil collection pipe is connected. An oil suction pipe is also installed on the flange cover, with its inner end extending into the bottom of the oil collection pipe, and its outer end connected sequentially to a first one-way valve and a return oil pipe, thus connecting to the vacuum pump main unit via the return oil pipe.

2. The oil-gas separator assembly according to claim 1, characterized in that: A baffle is also connected to the bottom plate of the inner tub, and the baffle has several through holes.

3. The oil-gas separator assembly according to claim 1, characterized in that: The exhaust pipe of the flange barrel cover is vertically upward and connected to a bend and a large tee in sequence. The outlet of the bend is connected to the large tee in the horizontal direction. The exhaust port of the large tee is upward. The lower pipe port arranged coaxially with the exhaust port is connected to a lower cover. The middle opening of the lower cover is connected to a second check valve. The second check valve is connected to the return oil pipe and the first check valve through a small tee.

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