CN217909631U

CN217909631U - Front filter

Info

Publication number: CN217909631U
Application number: CN202221649586.0U
Authority: CN
Inventors: 尹志强
Original assignee: Dongguan Jifu Vacuum Equipment Co ltd
Current assignee: Dongguan Jifu Vacuum Equipment Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-29
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a leading filter, it includes staving, bung, water diversion fan blade group, filter screen group and guide cylinder, the guide cylinder sets up in the staving, water diversion fan blade group sets up in the guide cylinder, the filter screen group corresponds the top position of guide cylinder sets up in the staving, be equipped with the gas outlet on the bung, be equipped with on the staving with the induction port that the intermediate layer space is linked together. Air enters from the air suction port, spirals downwards clockwise along the inner wall of the barrel body, sinks to the bottom, flows through the communication space and spirals upwards clockwise along the inner layer of the guide cylinder. Due to the blocking of the water diversion fan blade group, liquid and solid impurities in the gas lose inertia and fall vertically to be precipitated at the bottom of the barrel body. The gas after the prefiltering goes to the filter screen group through the water distribution fan blade group to be filtered for the second time, so that the filtering effect is effectively improved, and the gas which is filtered cleanly is discharged out of the filter from the gas outlet.

Description

Front filter

Technical Field

The utility model relates to a filter technical field, concretely relates to use leading filter on vacuum pump.

Background

The pre-filter is arranged in front of the vacuum pump and used for filtering air entering the vacuum pump, and the service life of the vacuum pump is prolonged.

The patent number is CN200420016654.5, the patent name is vacuum filter, it is composed of a casing, a filter body and a cover, a filter element is arranged on the periphery of the filter body, one end of the filter body is fixed on the inner cavity wall of the casing, an air inlet is arranged on the casing, an air outlet is arranged on the cover, the air inlet is connected with the filter body, the cover is connected with the casing, an air inlet enters from the air inlet, the air passes through the filter element on the filter body, impurities in the air are filtered, clean air exits from the air outlet, because the air inlet is arranged on the end of the filter body, after the air enters, a large amount of air flow gushes towards the end close to the air inlet in the filter element, so that the end is not in time for filtering, and the end far away from the air inlet has no air flow, thus the filtering effect is not good.

SUMMERY OF THE UTILITY MODEL

Not enough to the aforesaid, the utility model aims to provide a structural design is reasonable, the leading filter that the filter effect is good.

In order to achieve the above purpose, the utility model provides a technical scheme is: the utility model provides a leading filter, its includes staving, bung, divide water fan blade group, filter screen group and guide cylinder, the guide cylinder sets up in the staving, upwards extend and radially enlarge the connection in the upper end of guide cylinder on the inner wall of staving for intermediate layer space upper end between guide cylinder and the staving is sealed, the lower extreme of guide cylinder extends to the lower part position of staving, and reserves the certain distance and forms and let the intercommunication space that intermediate layer space and guide cylinder inner space are linked together, divide water fan blade group to set up in the guide cylinder, the filter screen group corresponds the top position of guide cylinder sets up in the staving, be equipped with the gas outlet on the bung, be equipped with on the staving with the induction port that the intermediate layer space is linked together.

The utility model has the advantages that: the utility model has the advantages of reasonable design, gaseous from the induction port get into, along staving inner wall clockwise spiral downwards, gaseous sinking to the bottom, the intercommunication space of flowing through is again along the guide cylinder inlayer clockwise spiral upwards. Due to the blocking of the water distribution fan blade group, liquid and solid impurities in the gas lose inertia and vertically fall and precipitate at the bottom of the barrel body. The gas after the prefiltering goes to the filter screen group through the water distribution fan blade group to be filtered for the second time, so that the filtering effect is effectively improved, and the gas which is filtered cleanly is discharged out of the filter from the gas outlet.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic structural diagram of the middle filter screen assembly of the present invention.

Detailed Description

Referring to fig. 1 to 4, the prefilter provided in this embodiment includes a tub body 1, a tub cover 2, a water diversion fan blade group 3, a filter screen group 4, and a guide cylinder 5.

The guide cylinder 5 is arranged in the barrel body 1 through a support 6, specifically, the support 6 comprises an outer ring and a connecting rod, the outer ring is connected to the inner wall of the barrel body 1 through a screw or directly, one end of the connecting rod is connected to the outer ring, the other end of the connecting rod is connected to the outer wall of the guide cylinder 5, and the guide cylinder 5 is fixed in the barrel body 1. The upper end of the guide cylinder 5 extends upwards and is connected to the inner wall of the barrel body 1 in a radially expanding manner, so that the upper end of an interlayer space 11 between the guide cylinder 5 and the barrel body 1 is sealed, the lower end of the guide cylinder 5 extends to the lower part of the barrel body 1, and a certain distance is reserved to form a communication space 12 for communicating the interlayer space 11 with the inner space of the guide cylinder 5. The length of reserving a certain distance can be one tenth to two fifths of the total length of the barrel body 1.

The water distribution fan blade group 3 is arranged in the guide cylinder 5, the water distribution fan blade group 3 comprises a circle, a gas distribution seat and blades, the gas distribution seat is located at the circle center of the circle, the gas distribution seat is of a hollow structure, the upper circle of the gas distribution seat is cylindrical, the diameter of the lower part of the gas distribution seat is gradually reduced to form a cone shape, the blades are symmetrically distributed on the periphery of the gas distribution seat in the circle center, one end of each blade is connected to the gas distribution seat, and the other end of each blade is connected to the circle. The vanes are preferably disposed at 30 degrees of inclination.

The filter screen group 4 is arranged in the barrel body 1 corresponding to the position above the guide cylinder 5 and can cover the upper end of the guide cylinder 5. Specifically, the filter screen group 4 includes an upper bracket 41, a lower bracket 42, a filter screen and a steel wire ball 43, in this embodiment, the filter screen includes a five-mesh filter screen a44, a five-mesh filter screen B45, a five-mesh filter screen C46, a fifteen-mesh filter screen a47, and a fifteen-mesh filter screen B48, the lower bracket 42 is fixed at an opening position of the guide cylinder 5, the five-mesh filter screen a44 is flatly laid on the lower bracket 42, the steel wire ball 43 is flatly laid on the five-mesh filter screen a44, then the five-mesh filter screen B45, the fifteen-mesh filter screen a47, the fifteen-mesh filter screen B48, and the five-mesh filter screen C46 are sequentially laid on the steel wire ball 43, and finally the upper bracket 41 is fixed in the barrel body 1 and is pressed on the five-mesh filter screen C46, so as to achieve the purpose of positioning and fixing.

The barrel cover 2 covers the barrel body 1 and is fixed through screws, and an air outlet 21 is formed in the barrel cover 2. The barrel body 1 is provided with an air suction port 15 communicated with the interlayer space 11. The lower part of the barrel body 1 is provided with a water outlet 13, and when the water amount in the barrel body 1 is large, the water can be discharged through the water outlet 13. The bottom surface of the barrel body 1 is provided with a sewage discharge outlet 14 communicated with the communicating space 12, so that the cleaning is convenient.

When the air suction type air purifier works, air enters from the air suction port 15, spirals clockwise downwards along the inner wall of the barrel body 1, sinks to the bottom, flows through the communication space 12 and spirals clockwise upwards along the inner layer of the guide cylinder 5. Due to the blocking of the water diversion fan blade group 3, liquid and solid impurities in the gas lose inertia and fall vertically to be precipitated at the bottom of the barrel body 1. Gas through prefilter goes to filter screen group 4 through dividing water fan blade group 3 and carries out the secondary filter, effectively promotes the filter effect, is followed gas outlet discharge filter by the clean gas of filtration.

When cleaning is needed, the barrel cover 2 is opened, the filter screen group 4 is taken out, the water diversion fan blade group 3 is cleaned by clear water, the sewage discharge port 14 is opened to continue washing, then a new filter screen group 4 is replaced, and then the barrel cover 2 is covered and locked, so that the operation is simple and convenient.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. If the above embodiments of the present invention describe, other filters obtained by using the same or similar structure are all within the protection scope of the present invention.

Claims

1. The utility model provides a leading filter, its includes staving and bung, its characterized in that: it still includes water diversion fan blade group, filter screen group and guide cylinder, the guide cylinder sets up in the staving, upwards extend and radially enlarge the connection in the upper end of guide cylinder on the inner wall of staving for the intermediate layer space upper end between guide cylinder and the staving is sealed, the lower extreme of guide cylinder extends to the lower part position of staving, and reserves the certain distance and lets the intercommunication space that intermediate layer space and guide cylinder inner space are linked together, water diversion fan blade group sets up in the guide cylinder, the filter screen group corresponds the top position setting of guide cylinder is in the staving, be equipped with the gas outlet on the bung, be equipped with on the staving with the induction port that the intermediate layer space is linked together.

2. The pre-filter as set forth in claim 1, wherein a drain outlet communicating with said communicating space is provided on a bottom surface of said tub.

3. The prefilter of claim 1 wherein said fan blade set comprises a circle, a gas distribution base and blades, said gas distribution base is located at the center of the circle, the upper circle of the gas distribution base is cylindrical, the diameter of the lower part of the gas distribution base is gradually reduced to form a cone, a plurality of blades are symmetrically distributed around the circumference of the gas distribution base, and one end of each blade is connected to the gas distribution base, and the other end of each blade is connected to the circle.

4. The prefilter of claim 3 wherein said vanes are angularly disposed.

5. The prefilter of claim 1 wherein said barrel is provided with a support for holding said guide cylinder in place.

6. The pre-filter of any one of claims 1-5, wherein the screen pack comprises an upper bracket, a lower bracket, a screen and a wire ball, the screen and the wire ball being disposed in a stacked relationship between the upper bracket and the lower bracket.

7. The pre-filter of claim 1, wherein the lower portion of the barrel is provided with a drain.