Vacuum pump oil-gas separator

Abstract

The utility model discloses an oil-gas separator of a vacuum pump, and relates to the technical field of oil-gas separators. The device comprises a shell, a fixing cylinder and a collecting bin, the collecting bin is fixed to the lower portion of the inner wall of the shell, the fixing cylinder is fixed to the top end of the collecting bin and fixed to the inner wall of the shell, a sponge adsorption disc is fixed to the top end of the collecting bin in a penetrating mode, and an installation sleeve is fixed to the top end of the fixing cylinder in a penetrating mode; and a plurality of air filter screens are fixed on the peripheral side of the mounting sleeve in the fixed cylinder, and the distances between the air filter screens are equal. According to the oil-gas separator, the shell, the fixed cylinder and the collecting bin are arranged, so that the problems that the adsorbed oil liquid and the filter element are not separated in time during oil-gas separation and the recovered oil liquid is not purified are solved, and the oil-gas separator has the advantages that the adsorbed oil liquid and the filter element are separated in time during oil-gas separation, and the oil-gas separation efficiency is improved. And the oil liquid recovered after oil-gas separation is recovered after being filtered and purified, so that the cleanliness is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-gas separators, in particular to an oil-gas separator for a vacuum pump. Background Art

[0002] A vacuum pump oil-gas separator is a device used to separate oil mist and gas in the exhaust of a vacuum pump. It is also called a vacuum pump oil mist separator or exhaust filter element. Its main function is to reduce the failure rate of the vacuum pump, improve production efficiency and extend its service life. Under the action of the driving force, the gas in the oil-gas mixture on one side passes through the filter paper and cotton of the vacuum pump oil mist separator, and the oil is intercepted, thereby realizing the separation process of gas and vacuum oil. However, it still has the following disadvantages in actual use:

[0003] When separating oil and gas in a vacuum pump, the air is directly transported to the filter element for filtration. During use, as time goes by, the oil will remain in the filter element. As a result, in subsequent work, the high-pressure air passing through will cause the oil in the filter element to be blown out, resulting in an increase in the oil droplet content in the output air, affecting the exhaust air quality and oil content.

[0004] When oil and gas are separated in the vacuum pump, the separated oil is directly collected and transported to the recovery pipeline. The oil will contain more impurities and directly flow back into the oil circuit, which will increase the amount of pollution in the oil circuit and affect the use of the vacuum pump. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum pump oil-gas separator, which solves the problem that the adsorbed oil and the filter element are not separated in time during oil-gas separation, and the recovered oil is not purified by setting a shell, a fixed cylinder and a collection bin.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is an oil-gas separator for a vacuum pump, comprising an outer shell, a fixed cylinder and a collecting bin, wherein the collecting bin is fixed to the lower part of the inner wall of the outer shell, the top of the collecting bin is fixed to the fixed cylinder, the fixed cylinder is fixed to the inner wall of the outer shell, the top of the collecting bin is penetrated and fixed with a sponge adsorption disk, the top of the fixed cylinder is penetrated and fixed with a mounting sleeve, a plurality of air filters are fixed on the circumferential side of the mounting sleeve in the fixed cylinder, and the air filters are spaced equally apart. During operation, the fixed cylinder and the collecting bin are fixed therein by the outer shell, the air filter in the fixed cylinder absorbs oil droplets in the air passing through the fixed cylinder, the sponge adsorption disk at the top of the collecting bin absorbs the oil droplets falling on the sponge adsorption disk, impurities remain on it, and the oil droplets fall into the collecting bin.

[0008] Furthermore, end covers are fixed at both ends of the shell, and mounting rings are fixed on the end surfaces of the two end covers away from the shell. When the shell is working, the two ends are closed by the end covers and installed by the mounting rings.

[0009] Furthermore, the top end of the fixed cylinder is fixed to the bottom end of the end cover at the top end of the outer shell, an air inlet pipe is fixed to the upper inner part of the mounting sleeve, and the air inlet pipe is fixed through the end cover, an air outlet pipe is fixed through the top end of the fixed cylinder outside the mounting sleeve, and the air outlet pipe is fixed through the end cover, the fixed cylinder transports air to the mounting sleeve through the air inlet pipe, and discharges the filtered air in the fixed cylinder through the air outlet pipe.

[0010] Furthermore, the air filter is fixed on the inner wall of the fixed cylinder, and the top diameter of the air filter is larger than the bottom diameter, and is arranged in a funnel shape. The air filter increases the filtering area by forming a funnel shape and absorbs oil in the air.

[0011] Furthermore, the bottom end of the fixed cylinder is open, and the inner diameter of the bottom end of the fixed cylinder is equal to the diameter of the sponge adsorption plate. The bottom end of the collecting bin is fixed with an internal threaded cylinder, and the bottom end of the collecting bin is fixed to the top end of the end cover at the bottom end of the outer shell, and the internal threaded cylinder is fixed in the end cover at the bottom end of the outer shell. When the fixed cylinder is working, the oil dripping from the mounting sleeve is concentrated on the filter plate through the opening at the bottom end.

[0012] Furthermore, a threaded column is connected to the inner threaded barrel through a threaded connection, and an oil drain groove is provided in a circular array on the upper circumference of the threaded column. An abutment plate is fixed to the bottom end of the threaded column, and a rotating rod is fixed to the circumference of the abutment plate in a circular array. When the inner threaded barrel is working, the threaded column is driven to rotate by rotating the rotating rod, so that the oil drain groove extends out of the bottom end of the inner threaded barrel and the oil is discharged.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of insufficient separation between the adsorbed oil and the filter element during oil and gas separation by arranging an outer shell and a fixed cylinder. The air is transported to the installation sleeve through the intake pipe, and the air is transported to the lower part of the fixed cylinder through the installation sleeve, and rises in the lower part of the fixed cylinder, passes through several air filters in the fixed cylinder, so that the oil droplets in the air are fully absorbed by the air filter and then discharged to the air collection equipment or the exhaust equipment through the outlet pipe. After the air filter absorbs the oil droplets, the oil droplets gather on the air filter, concentrate on the side of the installation sleeve, and drip onto the sponge adsorption plate along the installation sleeve, which effectively prevents the air from being blown onto the air filter and directly carrying away the oil droplets to the outlet pipe for output as the work progresses, and the separation between the oil and the filter element is more timely.

[0015] The utility model solves the problem that the oil recovered during oil-gas separation is not purified by arranging a fixed cylinder and a collection bin. When the oil collected by the air filter on the installation sleeve drips, the oil falls on the sponge adsorption plate at the top of the collection bin and is adsorbed by the sponge adsorption plate. After adsorption, the oil falls into the collection bin, and impurities remain on the sponge adsorption plate. The recovered oil is relatively clean, reducing pollution to the oil circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a partially cutaway structural perspective diagram of a vacuum pump oil-gas separator;

[0018] Figure 2 It is a three-dimensional diagram of the shell structure;

[0019] Figure 3 It is a three-dimensional diagram of the cross-sectional structure of the fixed cylinder;

[0020] Figure 4 It is a partial cross-sectional structural perspective diagram of the collection chamber;

[0021] Figure 5 It is a three-dimensional diagram of the threaded column structure.

[0022] Reference numerals:

[0023] 1. Outer casing; 101. End cover; 102. Mounting ring; 2. Fixing cylinder; 201. Mounting sleeve; 202. Inlet pipe; 203. Outlet pipe; 204. Air filter; 3. Collection chamber; 301. Sponge adsorption plate; 302. Internally threaded cylinder; 303. Threaded column; 3031. Oil drain groove; 3032. Abutment plate; 3033. Rotating rod. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0025] See also Figure 1-5The utility model is a vacuum pump oil-gas separator, comprising a shell 1, a fixed cylinder 2 and a collection chamber 3. The collection chamber 3 is fixed to the lower part of the inner wall of the shell 1, and the top of the collection chamber 3 is fixed to the fixed cylinder 2. The fixed cylinder 2 is fixed to the inner wall of the shell 1. The shell 1 fixes the fixed cylinder 2 and the collection chamber 3 therein, and the air filter 204 is fixed therein through the fixed cylinder 2, so that the oil droplets in the air passing through the fixed cylinder 2 are adsorbed, and the oil droplets adsorbed on the air filter 204 are collected by the collection chamber 3. A sponge is fixed through the top of the collection chamber 3. The adsorption plate 301 adsorbs the oil through the sponge adsorption plate 301 and drops it into the collection bin 3. A mounting sleeve 201 is fixed through the top of the fixed cylinder 2, and the air filter 204 is fixed thereon through the mounting sleeve 201. Several air filters 204 are fixed around the mounting sleeve 201 in the fixed cylinder 2. The spacing between the air filters 204 is equal. The air entering the fixed cylinder 2 passes through the air filters 204 one by one, so that after the oil droplets in the air are fully absorbed, the oil is concentrated on the air filter 204 and falls onto the sponge adsorption plate 301.

[0026] Specifically, end covers 101 are fixed at both ends of the shell 1, and mounting rings 102 are fixed on the end surfaces of the two end covers 101 away from the shell 1. When the shell 1 is working, the two ends of the shell 1 are closed by the end covers 101, and the oil-gas separator is installed by cooperating with the mounting rings 102.

[0027] Furthermore, the top end of the fixed cylinder 2 is fixed to the bottom end of the end cover 101 at the top end of the outer shell 1, and an air inlet pipe 202 is fixed to the upper inner part of the mounting sleeve 201, and the air inlet pipe 202 is fixed through the end cover 101. An air outlet pipe 203 is fixed through the top end of the fixed cylinder 2 outside the mounting sleeve 201, and the air outlet pipe 203 is fixed through the end cover 101. The top end of the air inlet pipe 202 is connected to the output end of the compressor, and the top end of the air outlet pipe 203 is connected to the air collecting or exhaust equipment to discharge the air entering the fixed cylinder 2.

[0028] Furthermore, the air filter 204 is fixed on the inner wall of the fixed cylinder 2, and the top diameter of the air filter 204 is larger than the bottom diameter, and is arranged in a funnel shape. When filtering through the air filter 204, it is arranged in a funnel shape, with a larger filtering area, which can fully absorb the oil droplets in the air, and the oil droplets adsorbed thereon are affected by gravity and drip onto the sponge adsorption plate 301.

[0029] The operating process of this embodiment is as follows: when working, air is transported to the mounting sleeve 201 through the air inlet pipe 202, and is transported to the lower part of the fixed cylinder 2 through the mounting sleeve 201, and rises in the lower part of the fixed cylinder 2, passes through several air filters 204 in the fixed cylinder 2, so that the oil droplets in the air are fully absorbed by the air filter 204, and then discharged to the air collection equipment or exhaust equipment through the air outlet pipe 203. After the air filter 204 absorbs the oil droplets, the oil droplets gather on the air filter 204, concentrate on the side of the mounting sleeve 201, and drip onto the sponge adsorption plate 301 along the mounting sleeve 201, which effectively prevents the air from being blown onto the air filter 204 and directly carrying away the oil droplets to the outlet pipe 203 for output as the work progresses. Specific embodiment 2

[0030] See also Figure 1 、 3 , 4, 5. On the basis of the specific embodiment 1, the bottom end of the fixed cylinder 2 is open, and the inner diameter of the bottom end of the fixed cylinder 2 is equal to the diameter of the sponge adsorption disk 301. The bottom end of the collecting bin 3 is fixed with an internal threaded cylinder 302. The bottom end of the collecting bin 3 is fixed to the top of the end cover 101 at the bottom end of the outer shell 1, and the internal threaded cylinder 302 is fixed in the end cover 101 at the bottom end of the outer shell 1. When the fixed cylinder 2 is working, the bottom end is open, so that the oil dripping from the mounting sleeve 201 therein falls onto the sponge adsorption disk 301, and after being adsorbed by the sponge adsorption disk 301, it falls into the collecting bin 3 under the action of gravity, and the impurities remain on the sponge adsorption disk 301.

[0031] Specifically, a threaded column 303 is connected to the inner threaded barrel 302 through a threaded connection, and an oil drain groove 3031 is provided in a circular array on the upper side of the threaded column 303. An abutment plate 3032 is fixed to the bottom end of the threaded column 303, and a rotating rod 3033 is fixed to the abutment plate 3032 in a circular array on the side of the abutment plate 3032. The inner threaded barrel 302 threadably connects the threaded column 303 therein. By rotating the rotating rod 3033, the abutment plate 3032 and the threaded column 303 are driven to rotate until the oil drain groove 3031 is exposed below the inner threaded barrel 302, and the oil collected in the collection bin 3 can be discharged.

[0032] The operation process of this embodiment is as follows: when the oil collected by the air filter 204 on the mounting sleeve 201 drips, the oil falls on the sponge adsorption plate 301 at the top of the collection chamber 3, and is adsorbed by the sponge adsorption plate 301. After adsorption, the oil falls into the collection chamber 3, and impurities remain on the sponge adsorption plate 301. The recovered oil is relatively clean. When it is necessary to release the oil collected in the collection chamber 3, the rotating rod 3033 is rotated to drive the abutment plate 3032 to rotate. The rotation of the abutment plate 3032 drives the threaded column 303 to rotate until the oil drain groove 3031 on the side of the threaded column 303 is removed from the bottom of the internal threaded cylinder 302. After the oil is circulated, the oil in the collecting chamber 3 is discharged along the oil drain groove 3031 and collected. After the collection is completed, the rotating rod 3033 is rotated again to drive the abutment plate 3032 to rotate, so that the threaded column 303 rotates until the abutment plate 3032 abuts against the bottom end of the internal threaded tube 302, so that the bottom end of the internal threaded tube 302 is sealed during operation. When the oil needs to be circulated directly, the rotating rod 3033 is directly rotated to unscrew the threaded column 303, and the output end of the oil recovery pipeline is screwed into the internal threaded tube 302 and tightened, so that the oil entering the collecting chamber 3 can be directly recovered.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum pump oil-gas separator, comprising a housing (1), a fixing cylinder (2) and a collecting chamber (3), characterized in that: A collecting bin (3) is fixed to the lower portion of the inner wall of the housing (1), a fixing cylinder (2) is fixed to the top of the collecting bin (3), the fixing cylinder (2) is fixed to the inner wall of the housing (1), a sponge adsorption disc (301) is fixed through the top of the collecting bin (3), a mounting sleeve (201) is fixed through the top of the fixing cylinder (2), and a plurality of air filters (204) are fixed around the mounting sleeve (201) in the fixing cylinder (2), with the air filters (204) being spaced evenly apart.

2. The vacuum pump oil-gas separator according to claim 1, characterized in that: End covers (101) are fixed at both ends of the housing (1), and mounting rings (102) are fixed on the end surfaces of the two end covers (101) away from the housing (1).

3. The vacuum pump oil-gas separator according to claim 2, characterized in that: The top end of the fixed cylinder (2) is fixed to the bottom end of the end cover (101) at the top end of the housing (1); an air inlet pipe (202) is fixed to the upper inner portion of the mounting sleeve (201); the air inlet pipe (202) is fixed through the end cover (101); an air outlet pipe (203) is fixed through the top end of the fixed cylinder (2) outside the mounting sleeve (201); the air outlet pipe (203) is fixed through the end cover (101).

4. The vacuum pump oil-gas separator according to claim 1, characterized in that: The air filter (204) is fixed on the inner wall of the fixed cylinder (2), and the top diameter of the air filter (204) is larger than the bottom diameter, and is arranged in a funnel shape.

5. The vacuum pump oil-gas separator according to claim 2, characterized in that: The bottom end of the fixed cylinder (2) is open, and the inner diameter of the bottom end of the fixed cylinder (2) is equal to the diameter of the sponge adsorption disk (301). The bottom end of the collecting chamber (3) is fixed with an internal threaded cylinder (302). The bottom end of the collecting chamber (3) is fixed to the top end of the end cover (101) at the bottom end of the outer shell (1), and the internal threaded cylinder (302) is fixed inside the end cover (101) at the bottom end of the outer shell (1).

6. The vacuum pump oil-gas separator according to claim 5, characterized in that: A threaded column (303) is threadedly connected to the inner threaded barrel (302), and an oil drain groove (3031) is provided in a circular array on the upper portion of the circumference of the threaded column (303). An abutment disc (3032) is fixed to the bottom end of the threaded column (303), and a rotating rod (3033) is fixed in a circular array on the circumference of the abutment disc (3032).

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