CN211924471U

CN211924471U - Air filter assembly for screw air compressor and screw air compressor

Info

Publication number: CN211924471U
Application number: CN201922422983.9U
Authority: CN
Inventors: 杨国富
Original assignee: Xinlei Compressor Co Ltd
Current assignee: Xinlei Compressor Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-11-13
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to the technical field of screw air compressors, in particular to an air filter component for a screw air compressor and the screw air compressor, wherein the component comprises an air filter shell, an air filter element and an air filter cover; an air suction channel is arranged on one side of the air filter shell, an arc-shaped baffle is arranged on the bottom plate of the air filter shell and positioned on the inner side of the air suction channel, an air outlet is arranged in the center of the bottom of the air filter shell, an air filter element matching ring is arranged in the middle of the bottom plate of the air filter shell, and an air filter element supporting plate is arranged on the bottom plate of the air filter shell; a longitudinal filter element inner cavity with a non-penetrated top is arranged in the center of the bottom of the hollow filter element, the filter element inner cavity is matched with the hollow filter element matching circular ring, the hollow filter cover is matched and arranged on the hollow filter shell, and a first pressing circular ring plate, a second pressing circular ring plate and a third pressing circular ring plate are arranged on the inner side of the top of the hollow filter cover; the top of the hollow filter element is matched with the first compression ring plate, the second compression ring plate and the third compression ring plate. The advantage of this patent is that promote sealed effect, increase empty filter core life-span, prevent impurity entering in the air, promote the host computer life-span.

Description

Air filter assembly for screw air compressor and screw air compressor

Technical Field

The utility model relates to a screw air compressor machine technical field especially relates to an empty subassembly and screw air compressor machine of straining that screw air compressor machine was used.

Background

The air compressor is a device for compressing gas, converts mechanical energy of a prime motor into gas pressure energy, and mainly comprises a gas circuit circulating system, a water circuit circulating system, an oil circulating system, a power distribution system, a screen protection system, a direct current power supply system, a DTC control system and the like, and is similar to a water pump in structure and mainly comprises a piston type air compressor and a screw type air compressor.

For example, the screw air compressor disclosed in the chinese utility model patent publication No. CN209654229U (bulletin No. 2019.11.19) comprises a housing, a buffer seat, a screw air compressor main body, a first filter tank and a water tank are sequentially arranged at the bottom of an inner cavity of the housing from left to right, an outlet pipe is arranged at the left side of the screw air compressor main body, the other end of the outlet pipe penetrates through the housing, a first air duct is arranged between the screw air compressor main body and the first filter tank, a second filter tank is arranged at the top of the water tank, a second air duct is arranged between the first filter tank and the second filter tank, a support plate is fixedly connected at the left side of the water tank, a cooling tank is arranged at the top of the support plate, the structure is simple, the design is reasonable, and when air is extracted, the air can be filtered, not only the quality of the compressed air can be improved, but also large, and through certain buffering effect, can reduce the influence that vibration caused the screw compressor main part.

The air filter assembly used by the existing screw air compressor and the screw air compressor comprises an air filter shell, an air filter element and an air filter cover, and the common mode is a sealing mode that the air filter cover is screwed to compress the air filter element through an annular ring at the bottom of the air filter shell and an annular ring of the air filter cover.

The current air filter assembly structure has the following problems: in this way, if the height of the empty filter element is short, the empty filter element can be not tightly pressed, so that the sealing is failed; the middle part of the hollow filter element is provided with a through hollow filter element through hole, so that the sealing effect is influenced, the entering air cannot be clean air, and the service life of the host machine is influenced; and after passing through the air suction port, the air of the air filter shell directly contacts with the air filter element, so that the service life of the air filter element is prolonged.

Disclosure of Invention

The utility model aims to solve the problems of the prior air filter component of the air compressor and provide a sealing device which is convenient for compressing an air filter element and improving the sealing effect; the baffle plate prevents direct contact with the hollow filter element, so that the service life of the hollow filter element is prolonged; prevent impurity entering in the air, promote the screw air compressor of the screw air compressor subassembly and screw air compressor machine that is used of host computer life-span.

For the purpose of the utility model, the following technical scheme is adopted to realize:

an air filter assembly for a screw air compressor comprises an air filter shell, an air filter element and an air filter cover; an air suction channel is arranged on one side of the air filter shell, an arc-shaped baffle is arranged on the bottom plate of the air filter shell and positioned on the inner side of the air suction channel, an air outlet is arranged in the center of the bottom of the air filter shell, an air filter element matching circular ring is arranged in the middle of the bottom plate of the air filter shell, and an air filter element supporting plate is arranged on the bottom plate of the air filter shell and positioned on the outer side of the air filter element matching circular ring; the hollow filter element is characterized in that a longitudinal filter element inner cavity with a non-penetrating top is arranged in the center of the bottom of the hollow filter element, the filter element inner cavity is matched with a hollow filter element matching circular ring, the bottom of the hollow filter element is arranged on a hollow filter element supporting plate, the hollow filter cover is arranged on the hollow filter shell in a matching mode, and a first pressing circular ring plate, a second pressing circular ring plate and a third pressing circular ring plate are arranged on the inner side of the top of the hollow filter cover; the second compression ring plate is positioned between the first compression ring plate and the third compression ring plate, and the top of the hollow filter element is matched with the first compression ring plate, the second compression ring plate and the third compression ring plate.

Preferably, an air outlet interface is arranged at the center of the bottom surface of the air filter shell and communicated with the air outlet.

Preferably, the second compression ring plate is positioned between the first compression ring plate and the third compression ring plate, the heights of the first compression ring plate and the second compression ring plate are consistent, and the height of the third compression ring plate is greater than that of the second compression ring plate.

Preferably, the diameter of the hollow filter element is matched with that of the third pressing circular ring plate.

Preferably, the top of the air filtering cover is arc-shaped, and a plurality of friction blocks are regularly arranged on the outer circumference of the top surface of the air filtering cover in a circumferential direction.

Preferably, the friction block is an isosceles triangle, the vertex angle of the isosceles triangle is arc-shaped and points to the center, and a plurality of friction teeth are arranged on the outer side of the friction block.

Preferably, empty filter core backup pad for supporting the ring board, the support ring board include four arc portions and four bulges, the adjacent both sides of arc portion connect two bulges, arc portion and bulge regular interval arrangement form the annular.

Preferably, the top of the air filter shell is connected with the air filter cover through threads.

Preferably, the center lines of the air filter shell, the air filter element and the air filter cover are superposed.

The screw air compressor with the air filtering assembly is characterized by comprising a case, a driving motor, a screw assembly, an oil-gas separator, an air filter and the air filtering assembly, wherein the driving motor, the screw assembly, the oil-gas separator, the air filter and the air filtering assembly are arranged in the case.

According to the air filter assembly for the screw air compressor, due to the fact that the baffle is additionally arranged, air can be divided into two directions when reaching the baffle, and the air cannot directly contact with the air filter element after passing through the air suction port, so that the service life of the air filter element is prolonged; the top of the hollow filter element is sealed, and the hollow filter element and the hollow filter shell are matched in an axial sealing mode and through hard matching, so that sealing can never fail, air entering the main machine is clean, and the service life of the main machine is finally guaranteed.

To sum up, the advantage of this patent promotes sealed effect, increases empty filter core life-span, prevents impurity entering in the air, promotes the host computer life-span.

Drawings

Fig. 1 is a schematic structural view of an air filter assembly for a screw air compressor of the present invention.

Fig. 2 is an exploded view of an air filter assembly for a screw air compressor of the present invention.

Detailed Description

The following describes in detail an embodiment of the present invention with reference to the drawings.

The utility model provides a screw air compressor machine with empty subassembly of straining, this screw air compressor machine includes that quick-witted case and interior driving motor, screw rod subassembly, oil and gas separator, air cleaner and the empty subassembly of straining that screw air compressor machine was used, driving motor be connected with screw rod subassembly, oil and gas separator be connected with screw rod subassembly, air cleaner be connected with screw rod subassembly, a screw air compressor machine air filter set up on air cleaner with empty subassembly of straining.

As shown in fig. 1 and 2, an air filter assembly for a screw air compressor comprises an air filter shell 1, an air filter element 2 and an air filter cover 3; empty central line coincidence that strains shell 1, empty filter core 2 and empty lid 3 of straining, the right side of empty shell 1 of straining be provided with air suction channel 101, be convenient for better breathing in and be convenient for better and air inlet pipe connection through air suction channel 101. Lie in the air suction channel 101 inboard on the empty shell 1 bottom plate of straining and be provided with cowl 102, can shunt into two directions when making the air reach cowl 102 through cowl 102, the air can not direct and empty filter core contact behind the air suction channel 101 to increase empty filter core life-span. The air outlet 103 is arranged at the center of the bottom of the air filtering shell 1, and air can be better discharged through the air outlet 103. The bottom surface center of air filter shell 1 is provided with interface 11 of giving vent to anger, interface 11 of giving vent to anger be linked together with gas outlet 103, be convenient for better connection and be convenient for better giving vent to anger through interface 11 of giving vent to anger. The middle part of the bottom plate of the air filter shell 1 is provided with an air filter element matching circular ring 104, and the air filter element matching circular ring 104 is convenient to be matched with the air filter element 2 better. An empty filter element supporting plate 105 is arranged on the bottom plate of the air filter shell 1 and positioned on the outer side of the empty filter element matching circular ring 104; empty filter core backup pad 105 is for supporting the ring board, the support ring board include four circular arc portions and four bulges, the adjacent both sides of circular arc portion connect two bulges, circular arc portion and bulge regular interval arrange and form the annular. Better support is facilitated through the empty filter element support plate 105, and support strength and stability are improved. Empty 2 bottom centers of filter element be provided with vertical and the top filter core inner chamber 201 of not breaking through, be convenient for guarantee through the filter core inner chamber 201 of not breaking through that sealed can never become invalid to guarantee that the air that gets into the host computer is clean air, finally guarantee the life-span of host computer. The inner cavity 201 of the filter element is matched with the hollow filter element matching ring 104, and the filter element is assembled and combined in a mode of axial sealing and through hard matching. The empty cartridge 2 is mounted at the bottom on an empty cartridge support plate 105. Empty lid 3 cooperation of straining set up on empty shell 1 of straining, empty top of straining shell 1 and empty lid 3 of straining pass through threaded connection, further promote joint strength when being convenient for open through threaded connection. A first pressing circular ring plate 301, a second pressing circular ring plate 302 and a third pressing circular ring plate 303 are arranged on the inner side of the top of the air filtering cover 3; the top of the empty filter cartridge 2 is fitted with a first 301, a second 302 and a third 303 compression ring plate. The second compressing ring plate 302 is located between the first compressing ring plate 301 and the third compressing ring plate 303, the heights of the first compressing ring plate 301 and the second compressing ring plate 302 are consistent, and the height of the third compressing ring plate 303 is larger than that of the second compressing ring plate 302. The diameter of empty filter core 2 and the diameter phase-match that the third compressed tightly ring board 303, with empty filter core 2 just block in the third compresses tightly ring board 303, compress tightly the top outer lane of ring board 303 with empty filter core 2 through the third and wrap, and then further promote sealed effect, also be convenient for simultaneously compress tightly the equipment with empty filter core 2, promote the connectivity and the leakproofness of equipment. Empty top of straining lid 3 is the arc form, and empty 3 top surfaces of straining lid circumference upward regular arrangement is provided with five clutch blocks 31, clutch block 31 be isosceles triangle, and isosceles triangle's apex angle is circular-arc and directional center, the clutch block 31 outside is provided with a plurality of friction teeth 32, be convenient for through clutch block 31 that the staff is better strain the lid 3 to open empty to further convenient operation.

According to the assembly, by adding the baffle plate, air can be divided into two directions when reaching the baffle plate, and the air cannot be directly contacted with the hollow filter element after passing through the air suction port, so that the service life of the hollow filter element is prolonged; the top of the hollow filter element is sealed, and the hollow filter element and the hollow filter shell are matched in an axial sealing mode and through hard matching, so that sealing can never fail, air entering the main machine is clean, and the service life of the main machine is finally guaranteed.

The advantage of this patent is that promote sealed effect, increase empty filter core life-span, prevent impurity entering in the air, promote the host computer life-span.

Claims

1. An air filter assembly for a screw air compressor is characterized by comprising an air filter shell (1), an air filter element (2) and an air filter cover (3); an air suction channel (101) is arranged on one side of the air filtering shell (1), an arc-shaped baffle (102) is arranged on the bottom plate of the air filtering shell (1) and positioned on the inner side of the air suction channel (101), an air outlet (103) is arranged at the center of the bottom of the air filtering shell (1), an air filter element matching circular ring (104) is arranged in the middle of the bottom plate of the air filtering shell (1), and an air filter element supporting plate (105) is arranged on the bottom plate of the air filtering shell (1) and positioned on the outer side of the air filter element matching circular ring (104); a longitudinal filter element inner cavity (201) with a non-penetrated top is arranged in the center of the bottom of the hollow filter element (2), the filter element inner cavity (201) is matched with the hollow filter element matching circular ring (104), the bottom of the hollow filter element (2) is arranged on the hollow filter element supporting plate (105), the hollow filter cover (3) is arranged on the hollow filter shell (1) in a matching manner, and a first pressing circular ring plate (301), a second pressing circular ring plate (302) and a third pressing circular ring plate (303) are arranged on the inner side of the top of the hollow filter cover (3); the second compression circular ring plate (302) is located between the first compression circular ring plate (301) and the third compression circular ring plate (303), and the top of the hollow filter element (2) is matched with the first compression circular ring plate (301), the second compression circular ring plate (302) and the third compression circular ring plate (303).

2. The air filter assembly for the screw air compressor as claimed in claim 1, wherein an air outlet port (11) is formed in the center of the bottom surface of the air filter casing (1), and the air outlet port (11) is communicated with the air outlet (103).

3. The air filter assembly for screw air compressors according to claim 1, wherein the second compression ring plate (302) is located between the first compression ring plate (301) and the third compression ring plate (303), the first compression ring plate (301) and the second compression ring plate (302) have the same height, and the third compression ring plate (303) has a height greater than that of the second compression ring plate (302).

4. An air filter assembly for a screw air compressor according to claim 3, characterized in that the diameter of the air filter element (2) is matched to the diameter of the third compression ring plate (303).

5. The air filter assembly for the screw air compressor as claimed in claim 1, wherein the top of the air filter cover (3) is arc-shaped, and a plurality of friction blocks (31) are regularly arranged on the periphery of the outer side of the top surface of the air filter cover (3).

6. The air filter assembly for the screw air compressor as claimed in claim 5, wherein the friction block (31) is in the shape of an isosceles triangle, the vertex angle of the isosceles triangle is in the shape of an arc and points to the center, and a plurality of friction teeth (32) are arranged on the outer side of the friction block (31).

7. The air filter assembly for the screw air compressor as claimed in claim 1, wherein the air filter supporting plate (105) is a supporting circular ring plate, the supporting circular ring plate comprises four circular arc portions and four convex portions, two adjacent sides of the circular arc portions are connected with the two convex portions, and the circular arc portions and the convex portions are arranged at regular intervals to form a ring shape.

8. The air filter assembly for screw air compressors according to claim 1, wherein the top of the air filter housing (1) is connected with the air filter cover (3) by screw threads.

9. The air filter assembly for screw air compressors according to claim 1, wherein the center lines of the air filter casing (1), the air filter element (2) and the air filter cover (3) coincide.

10. The screw air compressor with the air filtering assembly is characterized by comprising a machine case, a driving motor, a screw assembly, an oil-gas separator, an air filter and the air filtering assembly in the machine case according to any one of claims 1 to 9, wherein the driving motor is connected with the screw assembly, the oil-gas separator is connected with the screw assembly, the air filter is connected with the screw assembly, and the air filtering assembly is arranged on the air filter.