CN211819742U - Air filter of engine suitable for adverse circumstances - Google Patents

Abstract

The utility model discloses an air filter of engine suitable for adverse circumstances, which comprises a fine filtering module and a pre-filtering module, wherein the pre-filtering module comprises an air inlet cavity and a dust collecting cavity, air inlet grids which are uniformly arranged are arranged in the peripheral direction of the air inlet cavity, return type cyclone tubes which are arranged in groups are arranged in the air inlet cavity, a dust exhaust port and an air exhaust port are arranged on the return type cyclone tubes, the dust exhaust port is communicated with the dust collecting cavity, and the air exhaust port is communicated with the air inlet end of the fine filtering module; and the return type cyclone tube is arranged from the exhaust port to the dust exhaust port in a downward inclined mode. In this air cleaner's whole filtering process, experienced two poles of the earth and filtered, the filter effect is better to the formula vortex tube that turns back adopts the mode of arrangement from the gas vent to the downward sloping of dust exhaust port side, thereby makes the dust exhaust port downwards rather than the level, helps the dust to fall into the collection dirt intracavity through the dust exhaust port like this more, has reduced the operating pressure of fine filtration module, thereby helps prolonging maintenance cycle.

Description

Air filter of engine suitable for adverse circumstances

Technical Field

The utility model relates to an air cleaner technical field especially relates to an air cleaner suitable for adverse circumstances's engine.

Background

The engine for outdoor operation platforms such as oil drilling is adverse in working environment, big sand blown by the wind, and dust concentration is high, and ordinary empty filter effect is poor, and the colating is inefficient, and the maintenance cycle is short, and the user needs frequent renew cartridge, and the maintenance cost is higher.

In summary, how to solve the problem that the filter element needs to be replaced frequently and the maintenance cost is high in the severe working environment of the engine has become a technical problem that needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air cleaner suitable for adverse circumstances's engine to solve the engine and need frequently change the problem that the maintenance cost is high under adverse circumstances filter core.

In order to achieve the purpose, the utility model provides an air filter of engine suitable for adverse circumstances, the air filter includes fine filtration module and prefiltration module, prefiltration module includes air inlet chamber and dust collecting chamber, be provided with the air inlet grid of evenly arranging in the direction all around of air inlet chamber, be provided with the formula of turning back cyclone tube of arranging in groups in the air inlet chamber, be provided with dust exhaust mouth and gas vent on the formula of turning back cyclone tube, the dust exhaust mouth with the dust collecting chamber intercommunication, the gas vent with the inlet end of fine filtration module intercommunication; and the return type cyclone tube is arranged from the exhaust port to the dust exhaust port in a downward inclined mode.

Preferably, the pre-filtering module further comprises a rain cover, the rain cover is covered outside the air inlet grille, and the side part of the rain cover is an open port.

Preferably, the bottom of the dust collection cavity is also provided with a dust exhaust valve.

Preferably, the dust exhaust valves are multiple in number and are uniformly arranged at the bottom of the dust collection cavity.

Preferably, the air filter further comprises a mounting bracket for mounting and fixing the air filter.

Preferably, the mounting surface of the mounting bracket is arranged at an acute angle to the reentrant swirl tube.

Preferably, the mounting bracket is fixedly arranged below the fine filter module.

Preferably, the fine filter module is arranged at a side of the pre-filter module.

Preferably, the back-turning type cyclone tube comprises an outer tube body and an inner tube body, both ends of the outer tube body are open, and part of tube sections of the outer tube body are sleeved with each other, cyclone blades are connected between the outer tube wall of the sleeved section of the inner tube body and the inner tube wall of the sleeved section of the outer tube body, a port of a non-sleeved end of the inner tube body forms the exhaust port, and a non-sleeved end of the outer tube body forms the dust exhaust port.

Preferably, the outer pipe body is a tapered pipe, a thicker end of the tapered pipe is sleeved with the inner pipe body, and a thinner end of the tapered pipe forms the dust exhaust port.

Compared with the introduction content of the background technology, the air filter of the engine suitable for the severe environment comprises a fine filtering module and a pre-filtering module, wherein the pre-filtering module comprises an air inlet cavity and a dust collecting cavity, air inlet grids which are uniformly arranged are arranged in the peripheral direction of the air inlet cavity, the air inlet cavity is internally provided with the turn-back type cyclone tubes which are arranged in groups, the turn-back type cyclone tubes are provided with dust exhaust ports and exhaust ports, the dust exhaust ports are communicated with the dust collecting cavity, and the exhaust ports are communicated with the air inlet end of the fine filtering module; and the return type cyclone tube is arranged from the exhaust port to the dust exhaust port in a downward inclined mode. This air cleaner is in the in-service use in-process, the air is by the grid entering air inlet intracavity on the prefilter module, separate the air current through the formula vortex tube that turns back, the dust that the separation produced falls into in the dust collecting chamber through the dust exhaust mouth, the air of separation gets into the inlet end of essence filter module through the gas vent, the filter core that should the inside setting of essence filter module at last filters once more and carries to inside the engine, in the whole filtering process, experienced two poles of the earth and filtered, the filter effect is better, and the air is the essence filter module that just gets into after the prefilter module removes dust, greatly reduced the operating pressure of the interior filter core of essence filter module, the life and the maintenance cycle of the interior filter core of essence filter module have been prolonged, thereby greatly reduced the maintenance cost. In addition, because the air inlet chamber has adopted the air inlet grille that circumference was arranged, make and admit air more evenly, more help strengthening prefiltration module's filtration efficiency, and the formula vortex pipe that turns back adopts the mode of arrangement from the gas vent to the downward sloping of dust exhaust port side, thereby make the dust exhaust port downwards rather than the level, help the dust to fall into the dust collecting chamber through the dust exhaust port like this more, avoid vortex pipe afterbody deposition, the filter effect of prefiltration module has further been strengthened, the operating pressure of fine filtration module has been reduced simultaneously, thereby help prolonging the maintenance cycle.

Drawings

Fig. 1 is an external axial view structural schematic diagram of an air cleaner of an engine suitable for severe environment according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a partially cut-open rain cover of an air cleaner of an engine suitable for a severe environment according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an air cleaner of an engine suitable for severe environment, in which a rain cover is omitted, according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram illustrating an airflow direction inside an air cleaner of an engine suitable for a severe environment according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the back-turning type cyclone tube provided by the embodiment of the present invention.

In the above-described figures 1-5,

the device comprises a fine filtering module 1, a pre-filtering module 2, an air inlet cavity 21, a dust collecting cavity 22, an air inlet grille 23, a back-turning type cyclone tube 24, an outer tube 241, an inner tube 242, cyclone blades 243, a dust exhaust port 25, an exhaust port 26, a dust exhaust valve 27, a dust cover 3 and a mounting bracket 4;

wherein dark arrows in fig. 4 represent the dust trend and light arrows represent the air trend.

Detailed Description

The core of the utility model is to provide an air cleaner suitable for adverse circumstances's engine to solve the engine and need frequently change the problem that the maintenance cost is high under adverse circumstances filter core.

In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, an embodiment of the present invention provides an air cleaner for an engine in a severe environment, the air cleaner includes a fine filtration module 1 and a pre-filtration module 2, the pre-filtration module 2 includes an air inlet chamber 21 and a dust collecting chamber 22, an air inlet grille 23 uniformly arranged is provided around the air inlet chamber 21, a group of return type cyclone tubes 24 are provided in the air inlet chamber 21, a dust exhaust port 25 and an exhaust port 26 are provided on the return type cyclone tube 24, the dust exhaust port 25 is communicated with the dust collecting chamber 22, and the exhaust port 26 is communicated with an air inlet end of the fine filtration module 1; and the turnback swirl tube 24 is arranged to be inclined downward from the exhaust port 26 toward the dust discharge port 25.

This air cleaner is in the in-service use in-process, the air is by the grid entering air inlet intracavity on the prefilter module, separate the air current through the formula vortex tube that turns back, the dust that the separation produced falls into in the dust collecting chamber through the dust exhaust mouth, the air of separation gets into the inlet end of essence filter module through the gas vent, the filter core that should the inside setting of essence filter module at last filters once more and carries to inside the engine, in the whole filtering process, experienced two poles of the earth and filtered, the filter effect is better, and the air is the essence filter module that just gets into after the prefilter module removes dust, greatly reduced the operating pressure of the interior filter core of essence filter module, the life and the maintenance cycle of the interior filter core of essence filter module have been prolonged, thereby greatly reduced the maintenance cost. In addition, because the air inlet chamber has adopted the air inlet grille that circumference was arranged, make and admit air more evenly, more help strengthening prefiltration module's filtration efficiency, and the formula vortex pipe that turns back adopts the mode of arrangement from the gas vent to the downward sloping of dust exhaust port side, thereby make the dust exhaust port downwards rather than the level, help the dust to fall into the dust collecting chamber through the dust exhaust port like this more, avoid vortex pipe afterbody deposition, the filter effect of prefiltration module has further been strengthened, the operating pressure of fine filtration module has been reduced simultaneously, thereby help prolonging the maintenance cycle.

In some specific embodiments, the pre-filtering module 2 further includes a rain-proof cover 3, the rain-proof cover 3 is covered outside the air inlet grille 23, and the side of the rain-proof cover 3 is an open port. Through setting up rain-proof cover, can avoid the rainwater to get into the air inlet intracavity portion through air-inlet grille and influence the normal work of the formula vortex pipe of turning back. And adopt rain-proof cover lateral part to design into the form of open port, help the smooth and easy nature of admitting air more.

Here, in order to clean the dust in the dust collecting chamber, a dust exhaust valve 27 is further provided at the bottom of the dust collecting chamber 22. In practical application, the number of the dust exhaust valves can be arranged according to practical requirements, and generally, when the number of the dust exhaust valves 27 is multiple, the dust exhaust valves are preferably arranged uniformly at the bottom of the dust collection chamber 22, so that the thoroughness of dust exhaust can be ensured.

In some embodiments, generally, to facilitate installation of the air cleaner, the air cleaner further includes a mounting bracket 4 for mounting and fixing the air cleaner.

In a further embodiment, in order to ensure that the back-folded cyclone tube 24 is inclined downward from the exhaust port 26 to the dust exhaust port 25 by a predetermined angle after installation, the installation surface of the installation bracket 4 and the back-folded cyclone tube 24 are arranged at an acute angle. Therefore, in the actual installation process, the installation surface of the installation support is ensured to be installed horizontally, and the operation is more convenient.

In a further embodiment, the mounting bracket 4 may be fixedly disposed below the fine filter module 1, or may be fixedly disposed below the pre-filter module 2. In the practical application process, the arrangement can be selected according to the practical installation requirement.

In some specific embodiments, the fine filter module 1 is preferably disposed at the side of the pre-filter module 2, and the fine filter module 1 and the pre-filter module 2 are preferably connected by a single structure, such as by welding. The arrangement is more favorable for saving space and enhancing the compactness of the structure.

It should be noted here that the specific structure of the turning-back cyclone tube 24 includes an outer tube 241 and an inner tube 242, both ends of which are open and part of which are sleeved, a cyclone vane 243 is connected between the outer wall of the sleeved section of the inner tube 242 and the inner wall of the sleeved section of the outer tube 241, a port of the inner tube 242, which is not sleeved, constitutes the exhaust port 26, and a non-sleeved end of the outer tube 241 constitutes the dust exhaust port 25. It is understood that the above-mentioned structure is only a preferred example of the embodiment of the present invention, and other turning type swirling structures known to those skilled in the art may be selected during the practical application.

In a further embodiment, the outer tube 241 is preferably a tapered tube, the thicker end of which is sleeved with the inner tube 242 and the thinner end of which forms the dust outlet 25. The structure of the conical pipe is designed to further contribute to the return of the airflow.

It is right above that the utility model provides an air cleaner suitable for adverse circumstances's engine has carried out the detailed introduction. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The air filter is characterized by comprising a fine filtering module (1) and a pre-filtering module (2), wherein the pre-filtering module (2) comprises an air inlet cavity (21) and a dust collecting cavity (22), air inlet grids (23) which are uniformly arranged are arranged in the peripheral direction of the air inlet cavity (21), turn-back type cyclone tubes (24) which are arranged in groups are arranged in the air inlet cavity (21), dust exhaust ports (25) and exhaust ports (26) are arranged on the turn-back type cyclone tubes (24), the dust exhaust ports (25) are communicated with the dust collecting cavity (22), and the exhaust ports (26) are communicated with the air inlet end of the fine filtering module (1); and the return type cyclone tube (24) is arranged from the exhaust port (26) to the dust exhaust port (25) in a downward inclined mode.

2. The air cleaner of the engine suitable for the severe environment as recited in claim 1, wherein the pre-filtering module (2) further comprises a rain cover (3), the rain cover (3) covers the outside of the air intake grille (23), and the side of the rain cover (3) is an open port.

3. The air cleaner for an engine suitable for a severe environment as claimed in claim 1, wherein a dust exhaust valve (27) is further provided at a bottom of the dust collecting chamber (22).

4. The air cleaner for an engine suitable for a severe environment as claimed in claim 3, wherein the dust exhaust valve (27) is plural in number and is uniformly arranged at the bottom of the dust collecting chamber (22).

5. The air cleaner adapted for harsh-environment engines of claim 1, further comprising a mounting bracket (4) for mounting and securing said air cleaner.

6. The air cleaner for harsh environment engines of claim 5, wherein the mounting surface of said mounting bracket (4) is disposed at an acute angle to said reentrant swirl tube (24).

7. The air cleaner of an engine suitable for harsh environments of claim 6, wherein the mounting bracket (4) is fixedly disposed below the fine filter module (1).

8. Air cleaner of an engine adapted for harsh environments according to any of the claims 1-7, wherein the fine filter module (1) is arranged at the side of the pre-filter module (2).

9. The air cleaner of an engine suitable for a severe environment as claimed in any one of claims 1-7, wherein the reentrant swirl tube (24) comprises an outer tube (241) and an inner tube (242) which are open at two ends and are partially sleeved, a cyclone vane (243) is connected between the outer wall of the sleeved section of the inner tube (242) and the inner wall of the sleeved section of the outer tube (241), the non-sleeved end port of the inner tube (242) forms the exhaust port (26), and the non-sleeved end of the outer tube (241) forms the dust exhaust port (25).

10. The air cleaner of claim 9, wherein the outer body (241) is a tapered tube, a thicker end of the tapered tube is sleeved with the inner body (242), and a thinner end of the tapered tube forms the dust outlet (25).

Images