CN218882392U

CN218882392U - Air filter

Info

Publication number: CN218882392U
Application number: CN202223018706.XU
Authority: CN
Inventors: 康宏博; 高璐; 李强
Original assignee: Beijing Aerospace Sanfa High Tech Co Ltd
Current assignee: Beijing Aerospace Sanfa High Tech Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-04-18
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses an air filter relates to air filtering equipment technical field, including the barrel, set up access connection spare and export connecting piece on the barrel, the barrel inboard is provided with and carries out filterable baffling board, porous plate subassembly and filter element group spare to gas, and baffling board and porous plate subassembly are connected to set up and are first cavity and second cavity with the inside partition of barrel, and access connection spare communicates to first cavity, and export connecting piece is connected to the second cavity, and the baffling board is the slope and sets up in the one side of being close to access connection spare, filter element group spare sets up in the second cavity with export connecting piece intercommunication, and after the air flow in barrel, produce inertial collision through the baffling board and carry out the one-level filtration, produce the probability through porous plate subassembly and block and carry out the second grade filtration, produce the interception through filter element group spare and carry out tertiary filtration, flow out by the export connecting piece at last.

Description

Air filter

Technical Field

The utility model belongs to the technical field of air filter equipment technique and specifically relates to an air cleaner is related to.

Background

Need detect its performance at the research and development in-process of engine, consequently need carry out the operation test run to the engine under appropriate environment, the test run in-process of engine needs to inhale a large amount of air, if the impurity in the air is more can directly influence the test run performance of engine this moment, consequently need filter the air that gets into the engine through air cleaner to it is pure to guarantee that the engine air admission when the test bench carries out low temperature test, filters the foreign matter that comes from normal atmospheric temperature mixing air supply simultaneously.

The air filter in the prior art has the advantages of single filtering method and low filtering efficiency, and easily damages the filter element when the flow velocity of air flow in the air inlet pipeline is high, thereby reducing the service life of the filter element and leading the filtered air not to conform to the trial run standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air cleaner to the air cleaner who solves among the prior art has the filtration gimmick single, and can influence filter core life's technical problem under the too fast condition of air flow rate.

The utility model provides an air filter, including the barrel, set up access connection spare and export connecting piece on the barrel, the barrel inboard is provided with and carries out filterable baffling board, perforated plate subassembly and filter element group spare to gas, and baffling board and perforated plate subassembly are connected and are set up and be first cavity and second cavity with the inside partition of barrel, and the access connection spare communicates to first cavity, and export connecting piece is connected to the second cavity, and the baffling board is the slope and sets up in the one side that is close to access connection spare, filter element group spare sets up in the second cavity with the access connection spare intercommunication.

Further, the perforated plate subassembly includes first perforated plate and second perforated plate, and first perforated plate and second perforated plate interval set up, all set up the filtration pore on first perforated plate and the second perforated plate, and the filtration pore on the first perforated plate and the second perforated plate is crisscross the setting.

Further, a flange cover is arranged at the top of the cylinder body.

Furthermore, a lifting lug is arranged on the flange cover.

Further, the lower end of the cylinder body is provided with a lower end enclosure, a sewage discharge pipeline is arranged on the lower end enclosure, and a sewage discharge butterfly valve is arranged on the sewage discharge pipeline.

Furthermore, an inclined bottom baffle is arranged between the cylinder body and the perforated plate component.

Furthermore, a reinforcing rod is arranged on the baffle plate, and the other end of the reinforcing rod is fixed to the inner side wall of the cylinder.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model guides the flow direction of the air flow through the baffle plate and the perforated plate component, thereby increasing the filtering time of the air flow in the cylinder and improving the filtering efficiency; make the separation of the large granule impurity in the air current simultaneously many under the guide of baffling board and perforated plate subassembly to the impact force of air current has been reduced, thereby has alleviated filter element group spare's filtration pressure, has reduced high-speed air current and large granule impurity to filter element group spare's damage, has improved filter element group spare's filtration efficiency and life.

(2) The utility model discloses set up the blind flange at the top of barrel, can observe and maintain the inside equipment of barrel through opening the blind flange in the debugging maintenance process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of an air filter;

FIG. 2 is a front view of the air filter;

FIG. 3 is a schematic view of a baffle and perforated plate assembly;

fig. 4 is a schematic view of the air filter showing the direction of air flow.

Reference numerals:

1. a barrel; 11. a first cavity; 12. a second cavity; 2. an inlet connection; 3. an outlet connection; 4. a baffle plate; 41. a reinforcing bar; 5. a perforated plate assembly; 51. a first perforated plate; 52. a second perforated plate; 6. a filter element assembly; 7. a flange cover; 71. lifting lugs; 8. sealing the end; 81. a blowdown line; 9. a bottom baffle.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in the following combined drawings 1-4, the air filter comprises a cylinder body 1, an inlet connecting piece 2 and an outlet connecting piece 3 are arranged on the cylinder body 1, a baffle plate 4 for filtering gas is arranged on the inner side of the cylinder body 1, a porous plate assembly 5 and a filter element assembly 6 are arranged on the inner side of the cylinder body 1, the baffle plate 4 and the porous plate assembly 5 are connected and arranged, the inner part of the cylinder body 1 is divided into a first cavity 11 and a second cavity 12, the inlet connecting piece 2 is communicated to the first cavity 11, the outlet connecting piece 3 is connected to the second cavity 12, the baffle plate 4 is obliquely arranged on one side close to the inlet connecting piece 2, and the filter element assembly 6 is arranged in the second cavity 12 and communicated with the outlet connecting piece 3.

After air flows into the cylinder body 1, inertial collision is generated through the baffle plate 4 to perform primary filtration, probability blocking is generated through the porous plate assembly 5 to perform secondary filtration, interception is generated through the filter element assembly 6 to perform tertiary filtration, and finally the air flows out through the outlet connecting piece 3.

The baffle plate 4 is used for an inertia filtering method, high-speed air flows through the baffle plate 4 to collide, and then the flow velocity of the air is reduced and the kinetic energy of impurity particles is attenuated through the gradually increased flow area and the continuous collision of the impurity particles in the air and the baffle plate 4, so that the impurity particles are separated;

the porous plate assembly 5 is used as a probability filtering method, and impurities are separated after continuously colliding among the porous plate assemblies 5 to attenuate kinetic energy;

the filter element assembly 6 is used for intercepting and filtering, after air inflow passes through the filter element in the filter element assembly 6, impurity particles with the diameter larger than 1mm are effectively intercepted, the impurity particles are separated from the air, the filter element is of a double-layer filter screen structure and is made of stainless steel, the aperture of the outer layer filter screen is 2.5mm, the aperture of the inner layer filter screen is 0.7mm, and the screening area percentage is about 37.5%. The diameter DN450mm of the filter element, the length of the filter element is 550mm, the effective flow area is about 0.351m2, and the pressure loss of the filter element is about 300Pa.

In the application, the flow direction of the air flow is guided by the baffle plate 4 and the perforated plate assembly 5, so that the air flow flows in a U shape, the filtering time of the air flow in the cylinder body 1 is prolonged, and the filtering efficiency is improved; meanwhile, large particle impurities in the air flow are separated under the guide of the baffle plate 4 and the porous plate assembly 5, and the impact force of the air flow is reduced, so that the filtering pressure of the filter element assembly 6 is relieved, the damage of high-speed air flow and large particle impurities to the filter element assembly 6 is reduced, the filtering efficiency of the filter element assembly 6 is improved, and the service life of the filter element assembly is prolonged.

Preferably, the porous plate assembly 5 comprises a first porous plate 51 and a second porous plate 52, the first porous plate 51 and the second porous plate 52 are arranged at intervals, the first porous plate 51 and the second porous plate 52 are both provided with filtering holes,

the gas flows to the perforated plate component 5 under the guidance of the baffle plate 4, the gas flow firstly filters impurities in the gas flow through the filter holes on the first perforated plate 51, and then the gas flow further filters the impurities in the gas flow through the filter holes on the second perforated plate 52;

the filtering holes on the first porous plate 51 and the filtering holes on the second porous plate 52 are arranged in a staggered manner, and the airflow firstly touches the region of the second porous plate 52 which is not provided with the filtering holes after passing through the first porous plate 51, so that impurities in the airflow are further knocked and removed.

Preferably, for the maintenance of convenient equipment later stage, this application sets up flange cover 7 at the top of barrel 1, and the sealed form of flange cover 7 is the face suddenly, and seal gasket adopts the red copper pad, can observe and maintain the inside equipment of barrel 1 through opening flange cover 7 at the debugging maintenance in-process.

Preferably, the flange cover 7 is provided with a lifting lug 71, and the flange cover 7 is connected with the lifting lug 71 through lifting equipment in the process of assembling and disassembling.

Preferably, the lower extreme of barrel 1 sets up low head 8, and the impurity that filters down in operation in-process barrel 1 drops to 8 departments of low head, sets up sewage pipes 81 on the low head 8, sets up the blowdown butterfly valve on the sewage pipes 81, and the staff can regularly open the blowdown butterfly valve and discharge the impurity in the low head 8.

Preferably, an inclined bottom baffle 9 is arranged between the cylinder 1 and the perforated plate assembly 5, and the inclined bottom baffle 9 is arranged at an inclination angle of 20 degrees with respect to the horizontal plane, so that the separated solid particles can fall to the lower end socket 8, and the collected solid particles can be prevented from being brought into the main flow gas again by air.

Preferably, the baffle plate 4 is provided with a reinforcing rod 41, the other end of the reinforcing rod 41 is fixed to the inner side wall of the cylinder 1, and the baffle plate 4 is supported by the reinforcing rod 41, so that the stability of the baffle plate 4 is improved, and the baffle plate 4 is prevented from being deformed under the impact of high-speed air flow.

In the operation process, the air is conveyed to the inlet connecting piece 2, the air is guided into the cylinder body 1 through the inlet connecting piece 2,

the air flow enters the first cavity 11 and contacts with the baffle plate 4 firstly, so that the air flow direction is turned, part of solid particles are separated from the air by using the inertia effect, part of the separated solid particles directly fall into the lower end enclosure 8, and the rest part of the separated solid particles enter the main flow air again after colliding the wall for multiple times;

then the air current passes through the porous plate component 5, in the air current flowing direction, the open pores on the first porous plate 51 are blocked by the parts, which are not open pores, on the second porous plate 52, the air current flows through the filter pores and then deflects, partial solid particles in the air current are separated from the air current due to inertia impact, most of the separated solid particles fall into the lower seal head 8, and a small part of the separated solid particles enter the main air again;

finally, the air flow is further filtered by the filter element assembly 6, and the filtered air is output through the outlet connecting piece 3.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an air filter, includes barrel (1), set up inlet connection spare (2) and outlet connection spare (3) on barrel (1), a serial communication port, barrel (1) inboard is provided with and carries out filterable baffling board (4), perforated plate subassembly (5) and filter element group spare (6) to gas, baffling board (4) and perforated plate subassembly (5) are connected and are set up and be first cavity (11) and second cavity (12) with barrel (1) inside partition, inlet connection spare (2) communicate to first cavity (11), outlet connection spare (3) are connected to second cavity (12), baffling board (4) are the slope and set up in the one side that is close to inlet connection spare (2), filter element group spare (6) set up in second cavity (12) and outlet connection spare (3) intercommunication.

2. An air filter according to claim 1, wherein the perforated plate assembly (5) comprises a first perforated plate (51) and a second perforated plate (52), the first perforated plate (51) and the second perforated plate (52) are arranged at intervals, the first perforated plate (51) and the second perforated plate (52) are both provided with filtering holes, and the filtering holes in the first perforated plate (51) and the filtering holes in the second perforated plate (52) are arranged in a staggered manner.

3. An air filter according to claim 1, characterized in that a flange cover (7) is arranged on top of the cartridge (1).

4. An air filter according to claim 3, characterised in that the flange cover (7) is provided with lifting lugs (71).

5. An air filter according to claim 1, characterized in that the lower end of the cylinder (1) is provided with a lower seal head (8), the lower seal head (8) is provided with a sewage discharge pipeline (81), and the sewage discharge pipeline (81) is provided with a sewage discharge butterfly valve.

6. An air filter according to claim 1, characterized in that an inclined bottom baffle (9) is arranged between the cartridge (1) and the perforated plate assembly (5).

7. An air filter according to claim 1, characterized in that the baffle (4) is provided with reinforcing rods (41), the other ends of the reinforcing rods (41) being fixed to the inner side wall of the cylinder (1).