CN218530201U

CN218530201U - Air inlet filtering device of screw vacuum pump

Info

Publication number: CN218530201U
Application number: CN202222673698.6U
Authority: CN
Inventors: 王勇
Original assignee: Hangzhou Benyang Technology Co ltd
Current assignee: Hangzhou Benyang Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-02-28
Anticipated expiration: 2032-10-11

Abstract

The utility model relates to a filter equipment field especially relates to a screw vacuum pump filter equipment that admits air. The air inlet filtering device of the screw vacuum pump comprises a shell, wherein a filter cylinder is arranged in the shell; the clearance subassembly sets up at the shell outsidely, the clearance subassembly is including an installation section of thick bamboo, it has the air inlet net to inlay on the outer of an installation section of thick bamboo, the inside of an installation section of thick bamboo is equipped with the reciprocal lead screw of rotating the connection, the bottom of reciprocal lead screw is equipped with fixed connection's blade, the cover is equipped with threaded connection's connecting rod on the outer wall of reciprocal lead screw, one side that the connecting rod is close to the air inlet net is equipped with the top dish, just be equipped with a plurality of thimbles on the outer wall of top dish. The utility model provides a screw vacuum pump filter equipment that admits air through blocking up the granule in will admitting air the net and outwards ejecting the net of admitting air of wadding thing that wafts, but consequently greatly reduced filter equipment that admits air the phenomenon that blocks up appears in the use, and then reduces the influence that the vacuum pump efficiency of bleeding caused.

Description

Air inlet filtering device of screw vacuum pump

Technical Field

The utility model relates to a filter equipment field especially relates to a screw vacuum pump filter equipment that admits air.

Background

The screw vacuum pump is an air pumping device which utilizes a pair of screws to synchronously rotate in a high speed and reverse direction in a pump shell to generate air suction and exhaust functions, is an updated product of an oil seal type vacuum pump, can pump out gas occasions containing a large amount of water vapor and a small amount of dust, and is widely applied to the fields of domestic pharmaceutical, chemical industry, semiconductors and other enterprises with high requirements on clean vacuum.

The effect of filter equipment that admits air is dust and dirt among the filtered air, and be used for the compression to screw compressor room with clear filtration, and current vacuum pump filter equipment that admits air, generally all comprise single cartridge filter, and directly install the cartridge filter and carry out being connected in the inside direct air inlet position with the vacuum pump of shell, in the later stage use, have relatively great granule or the thing of floataing in the outside air, when adsorbed to filter equipment's air inlet position, then can cause the phenomenon of filter equipment air inlet position jam very easily, and cause the influence to the pumping efficiency of vacuum pump.

Therefore, it is necessary to provide a new intake air filtering device for a screw vacuum pump to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a screw vacuum pump filter equipment that admits air.

The utility model provides a screw vacuum pump filter equipment that admits air includes:

the filter cartridge is arranged inside the shell;

the clearance subassembly sets up outside the shell, the clearance subassembly is including an installation section of thick bamboo, it has the air inlet net to inlay on the outer of an installation section of thick bamboo, the inside of an installation section of thick bamboo is equipped with the reciprocal lead screw of rotating the connection, the bottom of reciprocal lead screw is equipped with fixed connection's blade, the cover is equipped with threaded connection's connecting rod on the outer wall of reciprocal lead screw, one side that the connecting rod is close to the air inlet net is equipped with the top dish, just be equipped with a plurality of thimbles on the outer wall of top dish.

Preferably, the outside cover of the reciprocal lead screw in top in the shell is equipped with the solid fixed cylinder of fixed connection, just the inner wall of solid fixed cylinder passes through the bearing and is connected with the outer wall rotation of reciprocal lead screw.

Preferably, the inner wall of the fixed cylinder is connected with the outer wall of the connecting rod in a sliding mode, and a protective cover is sleeved at the connecting position of the fixed cylinder and the connecting rod.

Preferably, a baffle plate fixedly connected is erected on the inner wall of the shell, and a connecting pipe is arranged on one side, away from the cleaning assembly, of the shell.

Preferably, both ends of cartridge filter all are equipped with fixed frame, the outer wall specification of fixed frame is the same with the inner wall specification of shell, the cartridge filter is inserted through fixed frame and is established at the shell inner wall, just the inside of cartridge filter offsets and communicates with the tip of connecting pipe.

Preferably, a sealing frame is inserted into one side of the baffle plate inside the shell, which is close to the cleaning assembly, and a plurality of partition plates which are distributed in a staggered mode are inserted into the inner wall of the sealing frame.

Compared with the prior art, the utility model provides a screw vacuum pump filter equipment that admits air has following beneficial effect:

1. the utility model discloses a setting of clearance subassembly, the thimble can be smooth insert the through-hole of air inlet net in, will block up the granule in the air inlet net and waft the outside ejecting net of wadding thing and clear up the air inlet net, but consequently greatly reduced filter equipment that admits air the phenomenon that blocks up appears in the use, and then reduce the influence that the vacuum pump efficiency of bleeding caused.

2. The utility model discloses an in the place ahead of admitting air of shell inside cartridge filter, set up sealed frame, in the use, when outside air passes the clearance subassembly and flows in sealed frame inside, through the inside baffle of a plurality of crisscross distributions from top to bottom of sealed frame, can make the circulation route of sealed frame inner wall air become crooked "S" type, consequently when air flow to sealed frame inside, the baffle can block to air current carrying relatively great granule impurity, reduce granule impurity along with in the air inflow filter vat, accelerate the probability that the jam appears in the filter vat, can increase the use single life of cartridge filter.

Drawings

Fig. 1 is a schematic structural view of an intake air filtering device of a screw vacuum pump according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the interior of the cleaning assembly shown in FIG. 1;

FIG. 3 is a schematic view of the interior of the mounting cartridge of the cleaning assembly of FIG. 2;

FIG. 4 is a schematic view of the reciprocating screw of the cleaning assembly shown in FIG. 2;

FIG. 5 is a schematic view of the interior of the sealing frame shown in FIG. 1;

FIG. 6 is a schematic view illustrating a structure of the filter cartridge shown in FIG. 1 connected to a connection pipe;

FIG. 7 is a schematic view of the interior of the housing of FIG. 1;

fig. 8 is a schematic structural view of the appearance of the present invention.

Reference numbers in the figures: 1. a housing; 11. a baffle plate; 2. cleaning the assembly; 21. mounting the cylinder; 211. an air intake network; 212. a fixed cylinder; 23. a reciprocating screw rod; 231. a blade; 232. a connecting rod; 233. a top tray; 234. a thimble; 3. a filter cartridge; 31. a fixing frame; 4. a connecting pipe; 5. a sealing frame; 51. a separator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention provides an air inlet filtering device for a screw vacuum pump, the air inlet filtering device for a screw vacuum pump includes: the cleaning device comprises a shell 1 and a cleaning assembly 2, wherein a filter cylinder 3 is arranged inside the shell 1.

The utility model discloses an in the embodiment, please refer to fig. 1, fig. 3 and fig. 4, clearance subassembly 2 sets up at shell 1 outsidely, clearance subassembly 2 is including installation section of thick bamboo 21, the outer overhead of installation section of thick bamboo 21 is inlayed and is had air inlet net 211, the inside of installation section of thick bamboo is equipped with the reciprocal lead screw 23 that rotates the connection, the bottom of reciprocal lead screw 23 is equipped with fixed connection's blade 231, the cover is equipped with threaded connection's connecting rod 232 on the outer wall of reciprocal lead screw 23, one side that connecting rod 232 is close to air inlet net 211 is equipped with a set 233, just be equipped with a plurality of thimbles 234 on the outer wall of set 233.

It should be noted that: in the later use process, when the vacuum pump works, external air can be sucked in through the air inlet net 211 part on the outer wall of the mounting cylinder 21 in the cleaning assembly 2, and in the process, the air flowing into the mounting cylinder 21 can be smoothly blown to the blades 231, so that the blades 231 drive the reciprocating screw rod 23 to rotate;

at this moment, the rotating reciprocating screw 23 can smoothly drive the top disc 233 to slide up and down in a reciprocating manner through the connecting rod 232 sleeved on the outer wall, when the top disc 233 moves to the top, the ejector pins 234 on the outer wall can smoothly insert into the through holes of the air inlet net 211, and the blocking particles and floatage in the air inlet net 211 are ejected outwards to clean the air inlet net 211, so that the blocking phenomenon of the air inlet filtering device in the use process can be greatly reduced, and the influence on the air extraction efficiency of the vacuum pump is further reduced.

In the embodiment of the present invention, please refer to fig. 2, fig. 3 and fig. 4, the outer sleeve of the top reciprocating screw 23 in the housing 1 is provided with a fixed cylinder 212, the inner wall of the fixed cylinder 212 is rotatably connected to the outer wall of the reciprocating screw 23 through a bearing, the inner wall of the fixed cylinder 212 is slidably connected to the outer wall of the connecting rod 232, and the connecting portion of the fixed cylinder 212 and the connecting rod 232 is provided with a protective cover.

It should be noted that: by connecting the reciprocating screw rod 23 with the fixed cylinder 212 by using a bearing, the fixed cylinder 212 can support the reciprocating screw rod 23 and simultaneously can enable the reciprocating screw rod 23 to smoothly rotate along with the blade 231;

through setting up the protection casing at the connecting position of connecting rod 232 with the solid fixed cylinder 212, when reciprocal lead screw 23 drove connecting rod 232 and carried out reciprocating motion from top to bottom inside the solid fixed cylinder 212, the sealed cowling can seal the connecting position between them, and then can avoid the dust in the air to get into reciprocal lead screw 23 and connect the junction even, causes reciprocal lead screw 23 the not rotatable phenomenon of jam to appear.

In the embodiment of the present invention, please refer to fig. 1 and 7, a baffle 11 is mounted on an inner wall of the housing 1, and a connecting pipe 4 is disposed on a side of the housing 1 away from the cleaning assembly 2.

It should be noted that: the inner part of the shell 1 can be smoothly divided into two relatively independent spaces by erecting the baffle plate 11, so that the filter cartridge 3 and the sealing frame 5 can be smoothly inserted into the shell 1.

In the embodiment of the present invention, please refer to fig. 1, fig. 6 and fig. 7, both ends of the filter cartridge 3 are provided with the fixing frames 31, the outer wall specification of the fixing frames 31 is the same as the inner wall specification of the housing 1, the filter cartridge 3 is inserted into the inner wall of the housing 1 through the fixing frames 31, and the inside of the filter cartridge 3 is offset and communicated with the end of the connecting pipe 4.

It should be noted that: through offsetting the end of the air inlet pipe with the inside of the filter cartridge 3, when the vacuum pump inhales, air can smoothly penetrate into the filter cartridge 3 from the outside of the filter cartridge 3 and smoothly flows into the vacuum pump through the air inlet pipe.

In the embodiment of the present invention, please refer to fig. 1, fig. 5 and fig. 7, a sealing frame 5 is inserted at one side of the inner baffle 11 of the housing 1 close to the cleaning assembly 2, and a plurality of partition boards 51 distributed in a staggered manner are inserted at the inner wall of the sealing frame 5.

It should be noted that: through the baffle 51 of crisscross distribution from top to bottom, can make the circulation route of 5 inner walls air of seal frame become crooked "S" type, consequently when the air flow to seal frame 5 inside, baffle 51 can block the air current carries relatively great granule impurity, reduces granule impurity along with in the air inflow filter vat for the probability of jam appears in the filter vat, can increase cartridge filter 3' S use single life.

The utility model provides a screw vacuum pump filter equipment that admits air's theory of operation as follows:

in the later use process, when a worker connects the device with the air inlet of the vacuum pump through the connecting pipe 4 and controls the vacuum pump to work, the vacuum pump can suck external air through the air inlet net 211 part on the outer wall of the mounting cylinder 21 in the device;

in the process, the air flowing into the installation cylinder 21 can be smoothly blown to the blades 231, so that the blades 231 drive the reciprocating screw rod 23 to rotate, at the moment, the rotating reciprocating screw rod 23 can smoothly drive the top disc 233 to reciprocate and slide up and down through the connecting rod 232 sleeved on the outer wall, when the top disc 233 moves to the top, the ejector pins 234 on the outer wall can be smoothly inserted into the through holes of the air inlet net 211, and push out the blocking particles and the floating flocs in the air inlet net 211 outwards to clean the air inlet net 211, so that the blocking phenomenon of the air inlet filtering device in the use process can be greatly reduced, and the influence on the air extraction efficiency of the vacuum pump is further reduced;

when air flows into the sealing frame 5 through the cleaning assembly 2, the circulation path of the air on the inner wall of the sealing frame 5 can be changed into a curved S shape through the plurality of partition plates 51 which are distributed in the sealing frame 5 in a vertically staggered manner, so that when the air flows into the sealing frame 5, the partition plates 51 can block the air flow carrying relatively large particle impurities;

can make the air carry inside the less dust relatively flows in cartridge filter 3, make cartridge filter 3 filter more meticulous dust, the air after the filtration can be smooth this moment through the connecting pipe 4 in the inflow vacuum pump.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A screw vacuum pump inlet air filter device, comprising:

the filter comprises a shell (1), wherein a filter cylinder (3) is arranged inside the shell (1);

clearance subassembly (2), the setting is outside at shell (1), clearance subassembly (2) are including installation section of thick bamboo (21), it has air inlet net (211) to inlay on the outer of installation section of thick bamboo (21), the inside of installation section of thick bamboo is equipped with reciprocal lead screw (23) of rotation connection, the bottom of reciprocal lead screw (23) is equipped with fixed connection's blade (231), the cover is equipped with threaded connection's connecting rod (232) on the outer wall of reciprocal lead screw (23), one side that connecting rod (232) are close to air inlet net (211) is equipped with top dish (233), just be equipped with a plurality of thimbles (234) on the outer wall of top dish (233).

2. The intake air filtering device of the screw vacuum pump as claimed in claim 1, wherein a fixed cylinder (212) is sleeved outside the reciprocating screw rod (23) at the top in the housing (1), and the inner wall of the fixed cylinder (212) is rotatably connected with the outer wall of the reciprocating screw rod (23) through a bearing.

3. The intake air filtering device of the screw vacuum pump as claimed in claim 2, wherein the inner wall of the fixed cylinder (212) is slidably connected with the outer wall of the connecting rod (232), and a protective cover is sleeved at the connecting part of the fixed cylinder (212) and the connecting rod (232).

4. The intake air filter device of a screw vacuum pump according to claim 1, characterized in that the inner wall of the housing (1) is provided with a fixedly connected baffle (11) and the side of the housing (1) remote from the cleaning assembly (2) is provided with a connecting pipe (4).

5. The intake air filter device of a screw vacuum pump according to claim 1, characterized in that the filter cartridge (3) is provided with fixing frames (31) at both ends, the outer wall of the fixing frame (31) has the same size as the inner wall of the housing (1), the filter cartridge (3) is inserted into the inner wall of the housing (1) through the fixing frame (31), and the inside of the filter cartridge (3) abuts against and communicates with the end of the connecting pipe (4).

6. The intake air filtering device of the screw vacuum pump according to claim 5, wherein a sealing frame (5) is inserted at one side of the baffle (11) inside the casing (1) close to the cleaning assembly (2), and a plurality of partition plates (51) distributed in a staggered manner are inserted at the inner wall of the sealing frame (5).