CN219639045U

CN219639045U - Large-displacement vortex compressor

Info

Publication number: CN219639045U
Application number: CN202321189294.8U
Authority: CN
Inventors: 张兴满; 张学峰
Original assignee: Zhejiang Ankang Refrigeration Equipment Co ltd
Current assignee: Zhejiang Ankang Refrigeration Equipment Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-09-05
Anticipated expiration: 2033-05-17

Abstract

The utility model belongs to the field of compressors, and particularly relates to a large-displacement scroll compressor, which comprises a machine case and an electric drive assembly arranged in the machine case, wherein a working cavity is arranged in the machine case, an air outlet pipe and an air inlet pipe which are connected with the working cavity are respectively arranged on the machine case, a fixed scroll and a movable scroll are arranged in the working cavity, the fixed scroll and the movable scroll are matched to form a compression cavity for compressing media, the movable scroll is in power connection with the electric drive assembly, a filter cavity positioned in the middle of the air outlet pipe and an oil return pipe which is respectively communicated with the filter cavity and the working cavity are arranged in the machine case, the air outlet pipe is divided into an upper section and a lower section by the filter cavity, and a truncated cone-shaped filter frame is arranged in the filter cavity.

Description

Large-displacement vortex compressor

Technical Field

The utility model belongs to the field of compressors, and particularly relates to a large-displacement scroll compressor.

Background

The scroll compressor forms a compression cavity for compressing a medium through the mutual cooperation of the movable scroll and the fixed scroll, so that the purpose of compressing the gaseous medium is achieved, wherein in order to improve the displacement of the scroll compressor, the defects of increased abrasion strength and overhigh temperature between the movable scroll and the fixed scroll are generally led, so that lubricating oil is required to provide lubrication and cooling functions for the movable scroll, but lubricating liquid is easily discharged out of the compressor along with a high-pressure medium, so that the loss of the lubricating liquid is caused, and the normal operation of equipment using the high-pressure medium subsequently is influenced.

Disclosure of Invention

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a big discharge capacity scroll compressor, it includes quick-witted case and installs in the inside electric drive subassembly of quick-witted case, be provided with the working chamber in the quick-witted incasement and be provided with outlet duct and the intake pipe of being connected with the working chamber on the quick-witted case respectively, install quiet vortex dish in the working chamber and move the vortex dish, quiet vortex dish and move the vortex dish cooperation and form the compression chamber that is used for compressing medium, move vortex dish and electric drive subassembly power connection, the quick-witted incasement is provided with the filter chamber that is located the outlet duct in the middle of and communicates filter chamber and the oil return pipe of working chamber respectively, the filter chamber separates the outlet duct into upper and lower two sections, the filter frame of round platform form is installed to the filter chamber.

As the preferable scheme, be provided with the exhaust hole in the middle of the filter frame, the straight-bar is installed to the filter frame lower extreme, is provided with sealed cylinder in the middle of the straight-bar and sealed cylinder lower extreme extends to in the outlet duct of hypomere.

As a preferable scheme, the filter frame is provided with a plurality of inclined grooves distributed around the exhaust holes, and the inclined grooves are obliquely arranged along the rotation axis of the filter frame.

Preferably, when the filter frame moves up to the top of the filter cavity, the sealing cylinder is separated from the air outlet pipe of the lower section.

Preferably, the diameter of the sealing cylinder is larger than the inner diameter of the exhaust hole.

Preferably, the lower end surface of the sealing cylinder is spherical.

As the preferable scheme, a chute between the filter cavity and the oil return pipe is arranged in the case, a baffle is arranged in the chute in a sliding way, and a through hole corresponding to the position of the oil return pipe is arranged on the baffle.

As a preferable scheme, the top end of the baffle is contacted with the upper end of the filter frame, and when the baffle moves upwards, the through hole is staggered with the oil return pipe.

As the preferable scheme, the lower end of the working cavity is provided with a limit groove and a limit rod which is arranged in the limit groove in a sliding way, the lower end of the movable vortex plate is provided with a connecting groove, and the upper end of the limit rod extends into the connecting groove.

Compared with the prior art, the utility model has the advantages that:

1. the high-pressure medium is discharged out of the equipment through the air outlet pipe, so that the function of recovering lubricating oil mixed in the high-pressure medium into the working cavity is realized, wherein the high-pressure medium flows towards the periphery of the air outlet hole of the filter frame due to the limitation of the sealing cylinder, the medium contacts the lower end face of the inner ring of the filter frame first, then flows to the air outlet pipe through the chute and the air outlet hole, lubricating liquid is attached to the lower end face of the filter frame in the process, the medium applies acting force to the filter frame when passing through the chute to drive the filter frame to rotate, and filtered lubricating oil moves towards the outer side of the filter frame under the action of centrifugal force, so that the lubricating oil is prevented from moving to the air outlet hole under the pushing of the medium.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of the internal structure of the chassis of the present utility model.

Fig. 3 is a schematic view of the internal structure of the working chamber and filter chamber of the present utility model.

Fig. 4 is a schematic view of the filter holder of fig. 3 a of the present utility model.

Fig. 5 is a schematic view of the filter holder of fig. 3 a in a raised state according to the present utility model.

Fig. 6 is a schematic view of a filter holder and seal cylinder of the present utility model.

Reference numerals in the figures: 1. a chassis; 2. an electric drive assembly; 3. a working chamber; 4. an air outlet pipe; 5. an air inlet pipe; 6. a fixed scroll; 7. a movable scroll; 8. a filter chamber; 9. an oil return pipe; 10. a filter frame; 12. an exhaust hole; 13. a straight rod; 14. a sealing cylinder; 15. a chute; 17. a chute; 18. a baffle; 19. a through hole; 20. a limit groove; 21. a limit rod; 22. and a connecting groove.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples or figures are illustrative of the utility model and are not intended to limit the scope of the utility model.

The utility model provides a large displacement scroll compressor, as shown in fig. 1, fig. 2 and fig. 3, including quick-witted case 1 and install in the inside electric drive subassembly 2 of quick-witted case 1, be provided with working chamber 3 in quick-witted case 1 and be provided with outlet duct 4 and intake pipe 5 that are connected with working chamber 3 on quick-witted case 1 respectively, install quiet vortex dish 6 in the working chamber 3 and move vortex dish 7, quiet vortex dish 6 and move vortex dish 7 cooperation and form the compression chamber that is used for compressed medium, move vortex dish 7 and electric drive subassembly 2 power connection, be provided with filter chamber 8 in the middle of outlet duct 4 and communicate the oil return pipe 9 of filter chamber 8 and working chamber 3 respectively in the quick-witted case 1, filter chamber 8 separates outlet duct 4 into upper and lower two sections, install round platform form filter stand 10 in the filter chamber 8, filter stand 10 can rotate with upper and lower slip at filter chamber 8.

As shown in fig. 3 and 4, the middle of the filter frame 10 is provided with an exhaust hole 12, the lower end of the filter frame 10 is provided with a straight rod 13, a sealing cylinder 14 is arranged in the middle of the straight rod 13, the lower end of the sealing cylinder 14 extends into the air outlet pipe 4 of the lower section, and the sealing cylinder 14 seals the air outlet pipe 4 of the lower section by means of the weight applied by the sealing cylinder 14, the filter frame 10 and the straight rod 13.

As shown in fig. 4 and 5, six inclined grooves 15 are provided on the filter frame 10 and distributed around the exhaust holes 12, and the inclined grooves 15 are inclined along the rotation axis of the filter frame 10, when the high-pressure medium passes through the inclined grooves 15 from bottom to top, the upper end of the inner wall of the inclined groove 15 is applied with pressure vertical to the end surface, so that the filter frame 10 is driven to rotate, and when the filter frame 10 moves up to the top of the filter cavity 8, the sealing cylinder 14 is separated from the air outlet pipe 4 at the lower section.

As shown in fig. 4 and 6, the diameter of the sealing cylinder 14 is larger than the inner diameter of the exhaust hole 12, the lower end surface of the sealing cylinder 14 is spherical, and the medium discharged from the air outlet pipe 4 at the lower section flows towards the position where the chute 15 is located under the restriction of the sealing cylinder 14.

As shown in fig. 4 and 5, a chute 17 between the filter cavity 8 and the oil return pipe 9 is arranged in the case 1, a baffle 18 is slidably arranged in the chute 17, a through hole 19 corresponding to the position of the oil return pipe 9 is arranged on the baffle 18, the top end of the baffle 18 is contacted with the upper end of the filter frame 10, and when the baffle 18 moves upwards, the through hole 19 is dislocated with the oil return pipe 9.

As shown in fig. 3, a limiting groove 20 and a limiting rod 21 slidably disposed in the limiting groove 20 are disposed at the lower end of the working chamber 3, a connecting groove 22 is disposed at the lower end of the movable scroll 7, and the upper end of the limiting rod 21 extends into the connecting groove 22.

Working principle:

the medium compressed by the static vortex disk 6 and the movable vortex disk 7 overcomes the weight of the filter frame 10, the straight rod 13 and the sealing cylinder 14, the filter frame 10, the straight rod 13 and the sealing cylinder 14 are pushed to move upwards in the filter cavity 8, after the sealing cylinder 14 is separated from the air outlet pipe 4 at the lower section, the high-pressure medium between the static vortex disk 6 and the movable vortex disk 7 moves from bottom to top in the filter cavity 8 and is discharged from the air outlet pipe 4 at the upper section, lubricating oil mixed in the high-pressure medium in the process is adhered to the lower end surface of the filter frame 10, the flowing high-pressure medium applies pressure to the upper end surface of the inner wall of the chute 15 and drives the filter frame 10 to rotate, and the filtered lubricating oil moves towards a direction away from the central axis of the filter frame 10 under the action of centrifugal force and is accumulated in the filter cavity 8 along the lower end surface of the outer ring of the filter frame 10 which is inclined downwards;

in addition, when the filter frame 10 is pushed to the upper end of the filter cavity 8 by high-pressure medium, the baffle 18 moves upwards along with the filter frame 10, so that the through hole 19 and the oil return pipe 9 are misplaced, an opening at the upper end of the oil return pipe 9 is in a closed state, when the high-pressure medium is discharged from the filter frame 10 and is reset, the baffle 18 moves downwards along with the falling, so that the through hole 19 moves to a position corresponding to the oil return pipe 9, and lubricating oil accumulated at the lower end of the filter cavity 8 can flow back to the lower end of the working cavity 3 through the through hole 19 and the oil return pipe 9 in sequence.

The above is only a preferred embodiment of the present utility model, and the present utility model is not limited in any way, and any simple modification and equivalent changes of the above embodiments according to the technical substance of the present utility model fall within the protection scope of the present utility model.

Claims

1. A large displacement scroll compressor, characterized by: the device comprises a case (1) and an electric drive assembly (2) arranged in the case (1), wherein a working cavity (3) is arranged in the case (1), an air outlet pipe (4) and an air inlet pipe (5) which are connected with the working cavity (3) are respectively arranged on the case (1), a static vortex disc (6) and a movable vortex disc (7) are arranged in the working cavity (3), the static vortex disc (6) and the movable vortex disc (7) are matched to form a compression cavity for compressing media, the movable vortex disc (7) is in power connection with the electric drive assembly (2), a filter cavity (8) positioned in the middle of the air outlet pipe (4) and an oil return pipe (9) which is respectively communicated with the filter cavity (8) and the working cavity (3) are arranged in the case (1), the filter cavity (8) divides the air outlet pipe (4) into an upper section and a lower section, and a circular table-shaped filter frame (10) is arranged in the filter cavity (8);

an exhaust hole (12) is formed in the middle of the filter frame (10), a straight rod (13) is arranged at the lower end of the filter frame (10), a sealing cylinder (14) is arranged in the middle of the straight rod (13), and the lower end of the sealing cylinder (14) extends into the air outlet pipe (4) at the lower section;

the filter frame (10) is provided with a plurality of chute (15) distributed around the exhaust hole (12), and the chute (15) is obliquely arranged along the rotation axis of the filter frame (10).

2. A large displacement scroll compressor as claimed in claim 1, wherein: when the filter frame (10) moves up to the top of the filter cavity (8), the sealing cylinder (14) is separated from the air outlet pipe (4) at the lower section.

3. A large displacement scroll compressor as claimed in claim 1, wherein: the diameter of the sealing cylinder (14) is larger than the inner diameter of the exhaust hole (12).

4. A large displacement scroll compressor as claimed in claim 1, wherein: the lower end face of the sealing cylinder (14) is spherical.

5. A large displacement scroll compressor as claimed in claim 1, wherein: a chute (17) positioned between the filter cavity (8) and the oil return pipe (9) is arranged in the case (1), a baffle (18) is arranged in the chute (17) in a sliding mode, and a through hole (19) corresponding to the oil return pipe (9) is formed in the baffle (18).

6. A large displacement scroll compressor as claimed in claim 5, wherein: the top end of the baffle (18) is in contact with the upper end of the filter frame (10), and when the baffle (18) moves upwards, the through hole (19) is dislocated with the oil return pipe (9).

7. A large displacement scroll compressor as claimed in claim 1, wherein: the lower end of the working cavity (3) is provided with a limiting groove (20) and a limiting rod (21) which is arranged in the limiting groove (20) in a sliding manner, the lower end of the movable vortex disc (7) is provided with a connecting groove (22), and the upper end of the limiting rod (21) extends into the connecting groove (22).