CN210889153U

CN210889153U - Built-in cyclone filter

Info

Publication number: CN210889153U
Application number: CN201921441012.2U
Authority: CN
Inventors: 庞春富
Original assignee: Chongqing Hongding Rubber & Plastic Products Co ltd
Current assignee: Chongqing Hongding Rubber & Plastic Products Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-30
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to a built-in cyclone filter, which comprises a cyclone primary filter unit with a dust cup and cyclone blades, and a base connected with an internal combustion engine, wherein the base is provided with a filter gas outlet, and the upper end of the base is connected with a filter shell through a fixed cover; the filter shell is provided with a filter cavity for installing a filter element and a cyclone cavity arranged on one side of the filter cavity, the cyclone cavity is semi-closed, a plurality of cyclone primary filter units are arranged in parallel in the cyclone primary filter cavity, and the filter cavity is closed by a fixed cover; the fixed cover is provided with an air vent which is communicated with the filter cavity and the air outlet of the filter; a filter cavity air inlet is formed in the bottom of the shared side wall of the filter cavity and the cyclone cavity; the cyclone cavity is internally provided with a fixed partition plate, so that the outside of the cyclone cavity is separated from the air inlet of the filter cavity, and the fixed partition plate is provided with a channel for communicating the air inlet of the filter cavity with the air outlet pipe of the cyclone primary filter unit. The utility model discloses simple structure improves air cleaner's work efficiency, increase of service life, and built-in structure makes the volume littleer, the installation of being convenient for and use.

Description

Built-in cyclone filter

Technical Field

The utility model belongs to the technical field of air cleaner, concretely relates to built-in cyclone filter for middle-size and small-size general internal-combustion engine.

Background

An air cleaner is used for removing particulate impurities in air, and when a piston machine (an internal combustion engine, a reciprocating compressor and the like) works, if impurities such as dust and the like are contained in sucked air, the abrasion of parts is increased, so that the air cleaner is required to be installed. The air filter is used for filtering an air inlet system of the engine and an air circulating system of a carriage respectively. The air filter that current gasoline engine used, the filter core that directly uses more filters, or add external whirlwind filter unit, and the volume is great, is not convenient for install and use. And directly use the filter core to filter, the filter core is as the consumptive material, needs regularly to change, increases and filters the cost, and forgets to change the filter core and can make the filter filtration quality variation, influences the engine performance even.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a built-in cyclone filter adds two whirlwind preliminary filter units on former air cleaner, compact structure, and is small, effectively promotes the filter effect.

In order to realize the above function, the utility model adopts the following technical scheme: a built-in cyclone filter comprises a cyclone primary filter unit, wherein the cyclone primary filter unit comprises a dust cup, an air outlet pipe and an air inlet cavity, the dust cup is internally provided with a dust-air separation cavity, one end of the dust cup is coaxially opposite to the dust cup, the air outlet pipe surrounds the outer side of the air outlet pipe and is communicated with external air, the air inlet cavity is communicated with the dust cup through a cyclone blade surrounding the outer side of the air outlet pipe, the bottom in the dust cup is provided with a reverse flow part which is opposite to the air outlet pipe and has the same central axis, and the side part of the bottom in the dust cup is provided with a dust exhaust port which has the same cyclone direction with the: the gas filter is characterized by also comprising a base connected with the internal combustion engine, wherein a filter gas outlet is arranged on the base, and the upper end of the base is connected with a filter shell through a fixed cover; the filter shell is provided with a filter cavity for installing a filter element and a cyclone cavity arranged on one side of the filter cavity, the cyclone cavity is semi-closed, a plurality of cyclone primary filter units are arranged in parallel in the cyclone primary filter cavity, and the filter cavity is closed by the fixed cover; the fixed cover is provided with an air vent which is communicated with the filter cavity and the air outlet of the filter; a filter cavity air inlet is formed in the bottom of the shared side wall of the filter cavity and the cyclone cavity; the cyclone filter is characterized in that a fixed partition plate is arranged in the cyclone cavity, so that the outer part of the cyclone cavity is separated from the air inlet of the filter cavity, and a channel for communicating the air inlet of the filter cavity with the air outlet pipe of the cyclone primary filter unit is arranged on the fixed partition plate.

Furthermore, the fixed partition plate, the air outlet pipe and the rotational flow blades form an air inlet cavity communicated with the outside, and a coarse filtration column for separating the air inlet cavity from the outside air is arranged on the periphery of the cup mouth of the dust cup.

Furthermore, the fixed partition plate is provided with a ventilation sunken port, and the air outlet pipe is tightly positioned in the ventilation sunken port.

Furthermore, one end of the coarse filtration column is fixedly connected to the upper edge of the dust collecting cup, and the other end of the coarse filtration column is detachably connected to the slot at the bottom of the fixed partition plate.

Furthermore, a positioning sinking platform for positioning the fixed partition plate is arranged in the cyclone cavity, and the fixed partition plate is fixedly installed through bolts and nuts.

To sum up, the utility model discloses increase two whirlwind on original air cleaner and just strain the unit, its simple structure to alleviate air cleaner's filtration load intensity, and then improve air cleaner's work efficiency and increase of service life, and reduce the maintenance change number of times of equal operation to air cleaner, built-in structure makes the volume littleer, convenient to install and use. The beneficial effects of the use are as follows: when the internal combustion engine works, negative pressure is formed in the cyclone primary filtering unit and the filtering cavity, external air is sucked into the air inlet cavity through the coarse filtering fence, guided by the cyclone blades and then rotates at a high speed to enter the dust collecting cup, gas-solid (gas-liquid) centrifugal separation is carried out on the air containing dust (liquid) under the action of centrifugal force, and the dust (liquid) spirally moves downwards along the wall of the dust collecting cup and is automatically discharged through the dust discharge port; after the primarily filtered clean air moves downwards to the bottom of the dust collecting cup, the primarily filtered air moves reversely and enters the filter cavity through the air outlet channel under the dual actions of the bottom structure of the dust collecting cup and the negative pressure in the dust collecting cup, so that the primary filtering effect is achieved. The utility model adds a cyclone primary filtering unit on the basis of the original air filter to primarily filter the entering air,

drawings

FIG. 1 is a schematic three-dimensional structure of an in-situ cyclone filter.

FIG. 2 is a schematic exploded view of an in-line cyclone filter.

Fig. 3 is a schematic front view of an in-situ cyclone filter.

Fig. 4 is a sectional view B-B of fig. 3.

FIG. 5 is a schematic side view of an in-situ cyclone filter.

Fig. 6 is a cross-sectional view C-C of fig. 5.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

A built-in cyclone filter as shown in fig. 1 to 6 comprises a cyclone primary filter unit, the cyclone primary filter unit comprises a dust cup 3 with a dust-gas separation chamber 32 inside, an air outlet pipe 62 with one end coaxially opposite to the dust cup 3, and an air inlet chamber 8 surrounding the outside of the air outlet pipe 62 and communicated with the outside air, the air inlet chamber 8 is communicated with the dust cup 3 through a cyclone blade 61 surrounding the outside of the air outlet pipe 62, the bottom in the dust cup 3 is provided with a reverse flow part 31 opposite to the air outlet pipe 62 and coaxial with the central axis, and the bottom side part in the dust cup 3 is provided with a dust discharge port 4 with the same cyclone direction as the cyclone blade 61, and the cyclone primary filter unit is characterized in that: the gas-liquid separator further comprises a base 1 connected with the internal combustion engine, a filter gas outlet 11 is arranged on the base 1, and the upper end of the base 1 is connected with a filter shell 2 through a fixing cover 5; the filter shell 2 is provided with a filter cavity 24 for installing a filter element and a cyclone cavity 23 arranged on one side of the filter cavity 24, the cyclone cavity 23 is semi-closed, a plurality of cyclone primary filter units are arranged in parallel in the cyclone cavity 23, and the filter cavity 24 is closed by the fixed cover 5; the fixed cover 5 is provided with a vent hole 51 which is communicated with the filter cavity 24 and the filter air outlet 11; a filter cavity air inlet 21 is formed in the bottom of the common side wall of the filter cavity 24 and the swirling flow cavity 23; and a fixed partition plate 9 is arranged in the cyclone cavity 23, so that the outside of the cyclone cavity 23 is separated from the filter cavity air inlet 21, and a passage for communicating the filter cavity air inlet 21 with the air outlet pipe 62 of the cyclone primary filter unit is arranged on the fixed partition plate 9.

Further, the fixed partition plate 9, the air outlet pipe 62 and the swirl vanes 61 form an air inlet chamber 8 communicated with the outside, and a rough filtering column 7 for separating the air inlet chamber 8 from the outside air is arranged on the periphery of the cup mouth of the dust collecting cup 3.

Further, a ventilation sinking port 91 is arranged on the fixed partition plate 9, and the air outlet pipe 62 is tightly positioned in the ventilation sinking port 91.

Furthermore, one end of the coarse filtration column 7 is fixedly connected to the upper edge of the dust cup 3, and the other end is detachably connected to the slot at the bottom of the fixed partition plate 9.

Further, a positioning sinking platform 22 for positioning the fixed partition plate 9 is arranged in the rotational flow cavity 23, and the fixed partition plate 9 is fixedly installed through bolts and nuts.

Internal combustion engine during operation forms the negative pressure in whirl chamber and two whirlwind primary filter units, and outside air gets into air inlet chamber 8 through coarse filtration fence 7, and the coarse filtration fence can effectively block great impurity such as leaf, scraps of paper and get into the dust cup, avoids arousing whirl blade 61 to block up. After the air enters the air inlet cavity 8, due to the negative pressure in the dust collecting cup 3, a rotary flow direction is formed in the dust collecting cup 3 under the guiding action of the rotational flow blades 61, and solid and liquid impurities mixed in the air are discharged from the dust outlet 4 under the action of centrifugal force generated by the rotary flow of the air; the air swirls in the dust cup 3 and flows out through the air outlet pipe 62 after contacting the conical reverse flow part 31 with the bottom protruding upwards, enters the swirling chamber 23, enters the bottom of the swirling chamber 23 through the ventilating heavy mouth 91 on the fixed separation plate 9, enters the filtering chamber 24 through the air inlet 21 of the filtering chamber, and further removes fine impurities in the air through the secondary filtration of the filter element in the filtering chamber 24, thereby achieving the purpose of deep dust removal.

The cleaned air after the secondary filtration enters the channel in the base 1 through the vent hole 51 on the fixed cover 5 and enters the internal combustion engine from the filter air outlet 11.

In order to prevent impurities from being directly brought into the air outlet pipe 62 by air moving at high speed, the lower end of the air outlet pipe 62 extends into the dust collecting cup 3 for a preset distance, so that the air rotates in an annular space on the inner wall of the dust collecting cup 5 and outside the air outlet pipe 62, and good air flowability is ensured while the impurities are not brought into the air outlet pipe 6 of the prefilter.

The fixed cover 5 is detachably mounted on the filter housing 2, and can be conveniently detached to replace the filter element in the filter chamber 24. The cyclone primary filtering unit is detachably connected with the slot on the fixed partition plate 9 through the coarse filtering fence 7, so that dust and impurities deposited in the cyclone cavity 23 and the cyclone filtering unit can be conveniently cleaned.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. The built-in cyclone filter comprises a cyclone primary filter unit, wherein the cyclone primary filter unit comprises a dust cup (3) of which the inside is a dust-gas separation cavity (32), an air outlet pipe (62) of which one end is coaxially opposite to the dust cup (3), and an air inlet cavity (8) which surrounds the outer side of the air outlet pipe (62) and is communicated with the outside air, wherein the air inlet cavity (8) is communicated with the dust cup (3) through a cyclone blade (61) which surrounds the outer side of the air outlet pipe (62), the bottom in the dust cup (3) is provided with a reverse flow part (31) which is opposite to the air outlet pipe (62) and is identical to the central axis, and the side part of the inner bottom of the dust cup (3) is provided with a dust discharge port (4) which is consistent with the cyclone direction of the cyclone blade (61: the gas-liquid separator is characterized by further comprising a base (1) connected with the internal combustion engine, wherein a filter gas outlet (11) is formed in the base (1), and the upper end of the base (1) is connected with a filter shell (2) through a fixing cover (5); the filter shell (2) is provided with a filter cavity (24) for installing a filter element and a cyclone cavity (23) arranged on one side of the filter cavity (24), the cyclone cavity (23) is semi-closed, a plurality of cyclone primary filter units are arranged in parallel in the cyclone primary filter cavity, and the filter cavity (24) is closed by the fixed cover (5); the fixed cover (5) is provided with a vent hole (51) which is communicated with the filter cavity (24) and the filter air outlet (11); a filter cavity air inlet (21) is formed in the bottom of the side wall shared by the filter cavity (24) and the rotational flow cavity (23); and a fixed partition plate (9) is arranged in the cyclone cavity (23), so that the outside of the cyclone cavity (23) is separated from the air inlet (21) of the filter cavity, and a channel for communicating the air inlet (21) of the filter cavity with the air outlet pipe (62) of the cyclone primary filter unit is arranged on the fixed partition plate (9).

2. An in-line cyclone filter according to claim 1, wherein: the dust collecting cup is characterized in that the fixed partition plate (9), the air outlet pipe (62) and the rotational flow blades (61) form an air inlet cavity (8) communicated with the outside, and a rough filtering fence (7) for separating the air inlet cavity (8) from the outside air is arranged on the periphery of the cup opening of the dust collecting cup (3).

3. An in-line cyclone filter according to claim 1, wherein: the fixed partition plate (9) is provided with a ventilation sinking port (91), and the air outlet pipe (62) is tightly positioned in the ventilation sinking port (91).

4. An in-line cyclone filter according to claim 2, wherein: one end of the coarse filtration column (7) is fixedly connected with the upper edge of the dust collecting cup (3), and the other end is detachably connected in a slot at the bottom of the fixed partition plate (9).

5. An inline cyclone filter according to claim 1 or 3, wherein: and a positioning sinking platform (22) for positioning the fixed partition plate (9) is arranged in the rotational flow cavity (23), and the fixed partition plate (9) is fixedly installed through bolts and nuts.