CN220134148U - Detachable filter for vacuum pump - Google Patents

Abstract

The utility model discloses a detachable filter for a vacuum pump, and relates to the technical field of mechanical equipment. The utility model comprises a filter cylinder, an arc-shaped bent pipe, a transfer pipe, a drying component and a filtering component, wherein the filtering component is arranged in an inner cavity of the filter cylinder, the bottom end of the filter cylinder is fixedly connected with one end of the arc-shaped bent pipe, the other end of the arc-shaped bent pipe is fixedly connected with the bottom end of the transfer pipe, one end, far away from the arc-shaped bent pipe, of the transfer pipe is connected with the drying component, and an oil mist filter element is inserted in the arc-shaped bent pipe in a plugging manner; the filter component comprises a net barrel and an end cover, the bottom end of the net barrel is fixed at the upper end of the end cover, and a impurity removing filter element is arranged in the net barrel. The utility model solves the problems that the conventional filter cannot realize the functions of dust removal and oil mist removal as a whole, and the conventional filter cannot isolate water from the filter when the vacuum pump works and is not easy to disassemble and assemble by arranging the filter cylinder, the filter assembly, the arc-shaped bent pipe, the transfer pipe, the drying assembly and the oil mist filter core.

Description

Detachable filter for vacuum pump

Technical Field

The utility model belongs to the technical field related to mechanical equipment, and particularly relates to a detachable filter for a vacuum pump.

Background

Vacuum pumps refer to devices or apparatus that draw air from a container being evacuated using mechanical, physical, chemical, or physicochemical means to obtain a vacuum. Generally, vacuum pumps are devices that improve, create, and maintain a vacuum in an enclosed space by various methods.

In a large amount of processing operations, many devices need to be vacuumized, a vacuum pump is inevitably needed, but the vacuum pump is not used for vacuuming devices and the types of materials in the vacuum pump, the extracted gas components are different, if a large amount of impurities exist, and the like, structural components in the vacuum pump are easily damaged, at the moment, related filters are needed to be used for processing, but the related filters still have the following defects in actual use:

1. in order to meet the requirements of vacuumizing treatment of different equipment and different materials, a filter is generally required to be additionally arranged between an vacuumizing end of vacuum and equipment, but for components of different materials, different filters are required to be matched, such as dust-containing materials, dust-removing and filtering are required to be matched, oil mist-containing materials are required to be filtered, and then the corresponding filters are required to be frequently replaced according to actual requirements, so that the filter is very troublesome and multiple functions cannot be integrated;

2. in the vacuum pumping treatment of the equipment, water mist and water vapor can be generated, if a large amount of water mist and water vapor enter the vacuum pump, the pump body is damaged, and then the conventional filter filters impurities to a large extent, so that moisture cannot be isolated, and the problem still cannot be solved;

3. because the filter is required to be additionally arranged between the vacuum air extraction end and the equipment, the filter cannot be necessarily arranged in the vacuum pump body aiming at the problems that different equipment and the filter core needs to be replaced after long-term use, and then the function of frequently disassembling and assembling the filter is required to be met.

Disclosure of Invention

The utility model aims to provide a detachable filter for a vacuum pump, which solves the problems that a conventional filter cannot realize the functions of dust removal and oil mist removal as a whole and cannot isolate water from the filter when the vacuum pump works and is not easy to detach by arranging a filter cylinder, a filter assembly, an arc-shaped bent pipe, a transfer pipe, a drying assembly and an oil mist filter core.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a detachable filter for a vacuum pump, which comprises a filter cylinder, an arc-shaped bent pipe, a transfer pipe, a drying component and a filtering component, wherein the filtering component is arranged in an inner cavity of the filter cylinder;

a filter assembly is arranged in the filter cartridge and is used for dedusting, impurity removing and filtering treatment, the lower end of the filter cartridge is connected with an arc-shaped bent pipe for transfer, whether an oil mist filter element is added in the arc-shaped bent pipe is selected according to the specific condition of actually required vacuumizing equipment, if materials and the like in the vacuumizing equipment contain certain oil mist components, the oil mist filter element can be added, and other corresponding filter elements can be added according to other material components; finally, through the transfer of the transfer pipe, the drying component is used for drying treatment, and then the drying component is used for vacuumizing treatment by a vacuum pump;

the filter assembly comprises a net barrel and an end cover, wherein the bottom end of the net barrel is fixed at the upper end of the end cover, and a impurity removing filter element is arranged in the net barrel;

the filter component can be integrally disassembled and assembled in the filter cylinder, the impurity removing filter core is arranged in the net cylinder, the filter component is mainly used for removing dust, dust is prevented from entering the vacuum pump, the net cylinder is made of stainless steel materials and used for limiting the position of the impurity removing filter core, and the filter component has a certain filtering function.

Further, the upper end of the filter cartridge is fixedly penetrated with a pipeline interface, the inner diameter of the pipeline interface is smaller than that of the filter cartridge, and the outer peripheral surface of the pipeline interface is provided with threads;

the filter cylinder is connected with equipment needing to be vacuumized through an upper pipeline interface of the filter cylinder, and the equipment is not required to be directly connected with a vacuum pump.

Further, through holes distributed at equal intervals are formed in the peripheral side of the net barrel in a penetrating manner, and gaps exist between the outer peripheral surface of the net barrel and the inner wall of the filter cylinder; when in air extraction, air enters from the upper end of the filter cylinder, enters the impurity removing filter core at the inner side of the filter cylinder through a large number of through holes at the periphery of the net cylinder, and finally is discharged downwards through the end cover.

Further, a sealing gasket is arranged at the upper end of the end cover at the peripheral side of the net drum, a ring plate is fixed at the lower part of the inner wall of the filter drum, the end cover is positioned below the ring plate, the sealing gasket is positioned between the end cover and the ring plate, a bolt is screwed in the end cover, and the upper end of the bolt penetrates through the sealing gasket and is screwed in the ring plate;

when the filter assembly is installed, the end cover and the sealing gasket are inserted from the bottom of the filter cylinder and are abutted under the annular plate, and then the bolts are screwed in from the lower direction of the end cover until the bolts are fixed with the annular plate, so that the end cover and the annular plate are fixedly connected, and the sealing gasket is matched to seal the joint.

Further, the radii of the sealing gasket and the end cover are equal to the inner diameter of the filter cylinder, and the middle upper part of the net cylinder passes through the annular plate and is positioned in the inner cavity of the filter cylinder; when the filter assembly is assembled, the mesh cartridge is inserted from the bottom of the cartridge through the annular plate into the cartridge.

Further, the drying assembly comprises two symmetrically arranged drying shells, a carrying shell with a large number of meshes is commonly arranged in the two drying shells, and a drying agent is arranged in the carrying shell; after the drying component is installed, gas enters through one drying shell, is dehydrated and dried through the object bearing shell and the drying agent in the object bearing shell, and is discharged through the other drying shell, so that the gas treatment operation of the air exhaust end of the vacuum pump is completed.

Further, two the one side that the drying shell deviate from each other all link up and are fixed with the connecting pipe, and the connecting pipe and the transfer union coupling of one of them drying shell terminal surface, the connecting pipe of another drying shell terminal surface are connected with the pumping end of vacuum pump.

The utility model has the following beneficial effects:

1. the utility model solves the problem that the conventional filter cannot realize the function of dust removal and oil mist removal as a whole by arranging the filter cartridge, the filter assembly, the arc-shaped bent pipe and the oil mist filter element; the filter assembly is arranged in the filter cylinder and used for dedusting, impurity removing and filtering, the lower end of the filter cylinder is connected with the arc-shaped bent pipe for transferring, whether an oil mist filter element is added in the arc-shaped bent pipe is selected according to the specific condition of actual required vacuumizing equipment, if materials in the vacuumizing equipment and the like contain certain oil mist components, the oil mist filter element can be added, if the oil mist components are not contained, the oil mist filter element can be not added, even the filter element can be replaced by other functional filter elements, and various functions are integrated for filtering.

2. According to the utility model, the drying assembly is arranged, so that the problem that the conventional filter cannot isolate moisture when the vacuum pump works is solved; when the gas pumped by the vacuum pump is subjected to drying treatment, the gas enters through a drying shell connected with the transfer pipe, and is discharged through another drying shell after being dehydrated and dried through the object bearing shell and the drying agent in the object bearing shell, so that the gas drying treatment operation of the air extraction end of the vacuum pump is finished, and most of moisture can be prevented from entering the vacuum pump.

3. The utility model solves the problem that the filter is not easy to disassemble and assemble by arranging the filter cylinder, the filter component, the arc-shaped bent pipe, the transfer pipe and the drying component; the bottom of the filter cylinder is provided with a flange plate, two ends of the arc-shaped bent pipe are also provided with the flange plate, two ends of the transfer pipe are also provided with the flange plate, one end, deviating from each other, of the two connecting pipes is also provided with the flange plate, the periphery of the drying shell, which is close to one port, is also provided with the flange plate, and the adjacent flange plates are fixed through fasteners such as bolts and nuts, so that the integral connecting part can be independently disassembled and assembled without frequently disassembling the interface part of the vacuum pump and the equipment.

Drawings

FIG. 1 is a perspective view of a removable filter for a vacuum pump;

FIG. 2 is a cross-sectional view of a filter cartridge;

FIG. 3 is a cross-sectional view of a filter assembly;

FIG. 4 is a cross-sectional view of an arcuate elbow;

fig. 5 is a split view of the drying assembly and the carrier shell after being cut away.

Reference numerals:

1. a filter cartridge; 101. a pipe interface; 102. a ring plate; 2. an arc-shaped bent pipe; 201. an oil mist filter element; 3. a transfer pipe; 4. a drying assembly; 401. drying the shell; 4011. a connecting pipe; 402. a carrier shell; 403. a drying agent; 5. a filter assembly; 501. a net drum; 5011. a through hole; 502. a impurity removing filter element; 503. an end cap; 504. a sealing gasket; 505. and (5) a bolt.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-5, the utility model discloses a detachable filter for a vacuum pump, which comprises a filter cartridge 1, an arc-shaped bent pipe 2, a transfer pipe 3, a drying component 4 and a filtering component 5, wherein the filtering component 5 is arranged in an inner cavity of the filter cartridge 1, the bottom end of the filter cartridge 1 is fixedly connected with one end of the arc-shaped bent pipe 2, the other end of the arc-shaped bent pipe 2 is fixedly connected with the bottom end of the transfer pipe 3, one end, away from the arc-shaped bent pipe 2, of the transfer pipe 3 is connected with the drying component 4, and an oil mist filter core 201 is inserted into the arc-shaped bent pipe 2;

a filter assembly 5 is arranged in the filter cartridge 1 and is used for dedusting, impurity removing and filtering treatment, the lower end of the filter cartridge 1 is connected with the arc-shaped bent pipe 2 for transfer, whether an oil mist filter element 201 is added into the arc-shaped bent pipe 2 is selected according to the specific situation of actually required vacuumizing equipment, if materials and the like in the vacuumizing equipment contain certain oil mist components, the oil mist filter element 201 can be added, and other corresponding filter elements can be added according to other material components; finally, through the transfer of the transfer pipe 3, the drying component 4 is used for drying treatment, and then the drying component is used for vacuumizing treatment by a vacuum pump;

the filter assembly 5 comprises a net drum 501 and an end cover 503, wherein the bottom end of the net drum 501 is fixed at the upper end of the end cover 503, and a impurity removing filter element 502 is arranged in the net drum 501;

the filter component 5 can be integrally assembled and disassembled in the filter cartridge 1, the impurity removing filter element 502 is arranged in the net drum 501, and is mainly used for removing dust, so that dust is prevented from entering the vacuum pump, and the net drum 501 is made of stainless steel materials and is used for limiting the position of the impurity removing filter element 502 and has a certain filtering function.

As shown in fig. 1-2, the upper end of the filter cartridge 1 is fixedly penetrated by a pipeline interface 101, the inner diameter of the pipeline interface 101 is smaller than that of the filter cartridge 1, and the outer peripheral surface of the pipeline interface 101 is provided with threads; the filter cartridge 1 is connected with equipment needing to be vacuumized through the upper end pipeline interface 101, and the equipment is not required to be directly connected with a vacuum pump.

As shown in fig. 1-3, through holes 5011 distributed at equal intervals are arranged on the periphery of the net drum 501 in a penetrating way, and a gap exists between the outer peripheral surface of the net drum 501 and the inner wall of the filter cartridge 1;

during air extraction, air enters from the upper end of the filter cartridge 1, enters the impurity removing filter element 502 at the inner side of the filter cartridge through a large number of through holes 5011 at the periphery of the net drum 501, and finally is discharged downwards through the end cover 503;

the upper end of the end cover 503 on the outer peripheral side of the net drum 501 is provided with a sealing gasket 504, the lower part of the inner wall of the filter drum 1 is fixed with a ring plate 102, the end cover 503 is positioned below the ring plate 102, the sealing gasket 504 is positioned between the end cover 503 and the ring plate 102, a bolt 505 is screwed in the end cover 503, and the upper end of the bolt 505 penetrates through the sealing gasket 504 and is screwed into the ring plate 102;

when the filter assembly 5 is installed, the end cover 503 and the sealing gasket 504 are inserted from the bottom of the filter cartridge 1 and are abutted under the annular plate 102, then the bolt 505 is slowly screwed upwards from the lower part of the end cover 503 until the bolt is fixed with the annular plate 102, so that the end cover 503 is fixedly connected with the annular plate 102, and the sealing gasket 504 is matched for sealing the connecting part;

the radius of the sealing gasket 504 and the end cover 503 is equal to the inner diameter of the filter cartridge 1, and the middle upper part of the net drum 501 passes through the annular plate 102 and is positioned in the inner cavity of the filter cartridge 1;

when the filter assembly 5 is assembled, the mesh cartridge 501 is inserted from the bottom of the filter cartridge 1 through the ring plate 102 into the filter cartridge 1.

As shown in fig. 1 and 5, the drying assembly 4 includes two symmetrically arranged drying shells 401, a carrying shell 402 with a large number of meshes is commonly placed in the two drying shells 401, and a drying agent 403 is arranged in the carrying shell 402;

after the drying assembly 4 is installed, gas enters through one drying shell 401, is dehydrated and dried through a bearing shell 402 and a drying agent 403 in the bearing shell, and is discharged through the other drying shell 401, so that the gas treatment operation of the air exhaust end of the vacuum pump is completed;

one surface of the two drying shells 401, which is away from each other, is communicated and fixed with a connecting pipe 4011, wherein the connecting pipe 4011 on the end surface of one drying shell 401 is connected with the transfer pipe 3, and the connecting pipe 4011 on the end surface of the other drying shell 401 is connected with the air extraction end of the vacuum pump.

It should be noted that, the bottom end of the filter cartridge 1 is provided with a flange, two ends of the arc-shaped bent pipe 2 are also provided with flanges, two ends of the transfer pipe 3 are also provided with flanges, one end, which is away from the two connecting pipes 4011, is also provided with a flange, the periphery of the drying shell 401, which is close to a port, is also provided with a flange, and the adjacent flanges are all fixed by fasteners such as bolts and nuts (the fasteners are of conventional structures and are not shown in the drawings), so that the integral connection part can be independently disassembled.

The specific working principle of the utility model is as follows: firstly, a filter cartridge 1 is connected with equipment needing vacuumizing through an upper end pipeline interface 101, a filter assembly 5 is arranged in an inner cavity of the filter cartridge 1, the bottom end of the filter cartridge 1 is fixedly connected with one end of an arc-shaped bent pipe 2, the other end of the arc-shaped bent pipe 2 is fixedly connected with the bottom end of a transfer pipe 3, one end, away from the arc-shaped bent pipe 2, of the transfer pipe 3 is connected with a drying assembly 4, a connecting pipe 4011 of the end face of one drying shell 401 in the drying assembly 4 is connected with the transfer pipe 3, and a connecting pipe 4011 of the end face of the other drying shell 401 is connected with an air extraction end of a vacuum pump;

during air extraction, air enters the impurity removing filter element 502 at the inner side of the filter cartridge 1 from the pipeline interface 101 at the upper end of the filter cartridge 1 through a plurality of through holes 5011 at the peripheral side of the net drum 501, finally is discharged downwards through holes in the end cover 503, enters the arc-shaped bent pipe 2, is subjected to oil mist removal through the oil mist filter element 201, is transferred through the transfer pipe 3 and enters the drying assembly 4, the air enters the drying assembly 4 through the drying shell 401 connected with the transfer pipe 3, is discharged through the other drying shell 401 after being dehydrated and dried through the object bearing shell 402 and the drying agent 403 in the drying shell, completes the air drying treatment operation of the air extraction end of the vacuum pump, and then enters the vacuum pump to discharge air.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims (7)

1. The utility model provides a detachable filter for vacuum pump, includes filter cartridge (1), arc return bend (2), transfer pipe (3), drying component (4) and filtration subassembly (5), its characterized in that: the filter is characterized in that a filtering component (5) is arranged in an inner cavity of the filter cylinder (1), the bottom end of the filter cylinder (1) is fixedly connected with one end of an arc-shaped bent pipe (2), the other end of the arc-shaped bent pipe (2) is fixedly connected with the bottom end of a transfer pipe (3), one end, far away from the arc-shaped bent pipe (2), of the transfer pipe (3) is connected with a drying component (4), and an oil mist filter element (201) is inserted into the arc-shaped bent pipe (2);

the filter assembly (5) comprises a net barrel (501) and an end cover (503), wherein the bottom end of the net barrel (501) is fixed at the upper end of the end cover (503), and a impurity removing filter element (502) is arranged in the net barrel (501).

2. A removable filter for a vacuum pump as claimed in claim 1, wherein: the upper end of the filter cartridge (1) is fixedly connected with a pipeline connector (101) in a penetrating way, the inner diameter of the pipeline connector (101) is smaller than that of the filter cartridge (1), and threads are arranged on the outer peripheral surface of the pipeline connector (101).

3. A removable filter for a vacuum pump as claimed in claim 1, wherein: through holes (5011) distributed at equal intervals are formed through the periphery of the net drum (501), and gaps exist between the outer peripheral surface of the net drum (501) and the inner wall of the filter drum (1).

4. A removable filter for a vacuum pump as claimed in claim 1, wherein: the sealing device is characterized in that a sealing gasket (504) is arranged at the upper end of an end cover (503) on the outer periphery side of the net barrel (501), a ring plate (102) is fixed at the lower part of the inner wall of the filter barrel (1), the end cover (503) is located below the ring plate (102), the sealing gasket (504) is located between the end cover (503) and the ring plate (102), a bolt (505) is connected in the end cover (503) in a rotating mode, and the upper end of the bolt (505) penetrates through the sealing gasket (504) and is screwed into the ring plate (102).

5. The removable filter for a vacuum pump according to claim 4, wherein: the radius of the sealing gasket (504) and the end cover (503) is equal to the inner diameter of the filter cartridge (1), and the middle upper part of the net drum (501) passes through the annular plate (102) to be positioned in the inner cavity of the filter cartridge (1).

6. A removable filter for a vacuum pump as claimed in claim 1, wherein: the drying assembly (4) comprises two symmetrically arranged drying shells (401), a material bearing shell (402) with a large number of meshes is placed in the two drying shells (401) together, and a drying agent (403) is arranged in the material bearing shell (402).

7. The removable filter for a vacuum pump according to claim 6, wherein: one surface of each drying shell (401) deviating from each other is communicated and fixed with a connecting pipe (4011), the connecting pipe (4011) of the end face of one drying shell (401) is connected with the transfer pipe (3), and the connecting pipe (4011) of the end face of the other drying shell (401) is connected with the air extraction end of the vacuum pump.