CN114810601A - Compressor with oil equalizing pipe - Google Patents
Compressor with oil equalizing pipe Download PDFInfo
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- CN114810601A CN114810601A CN202110087446.2A CN202110087446A CN114810601A CN 114810601 A CN114810601 A CN 114810601A CN 202110087446 A CN202110087446 A CN 202110087446A CN 114810601 A CN114810601 A CN 114810601A
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- Prior art keywords
- pipe
- oil equalizing
- compressor
- equalizing pipe
- hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
Abstract
The invention provides a compressor with an oil equalizing pipe, which comprises: the device comprises a shell, a cylinder, a liquid storage device, an air inlet connecting pipe, an exhaust pipe, a seat ring and an oil equalizing pipe; an opening is formed in the side wall of the shell, the opening corresponds to the air suction hole of the air cylinder, the seat ring is arranged in the opening and is fixedly connected with the shell, the air inlet connecting pipe is inserted into a copper pipe of the seat ring, and the liquid storage device is communicated with the air suction hole of the air cylinder through the air inlet connecting pipe; the bottom end of the oil equalizing pipe is inserted into the flanging structure and is communicated with the copper pipe, and the top end of the oil equalizing pipe is communicated with the exhaust pipe. In the compressor of the even oil pipe of area that this application provided, through the copper pipe extension with the seat circle structure to set up the through-hole in the extension part and set up the turn-ups structure simultaneously, realize that the connection of even oil pipe is fixed, not only can reduce manufacturing cost, can fix even oil pipe between reservoir and casing moreover, reduce the space that even oil pipe occupied from this, and avoid it impaired.
Description
Technical Field
The application relates to the technical field of compressors, in particular to a compressor with an oil equalizing pipe.
Background
The compressor is a fluid machine for lifting low-pressure gas into high-pressure gas, and is a heart of a refrigeration system. The compressors are connected in parallel in the refrigeration system, so that the refrigeration system has the advantages of convenience in capacity adjustment, easiness in single machine halt and maintenance, low cost and the like, but due to the difference in manufacturing of the compressors or different states of operation or halt of different compressors, oil outlet or oil return distribution of each compressor is uneven, the oil quantity of some compressors is increased after operation, the oil quantity of other compressors is reduced, the compressors with too little oil quantity are likely to be damaged due to insufficient lubrication, and therefore the oil balance design is needed when the compressors are connected in parallel.
Currently, the common practice of oil balancing is to connect the oil sumps of two compressors by using one oil balancing pipe (i.e., oil equalizing pipe). Specifically, a seat ring needs to be additionally arranged on a shell of the compressor, a support is additionally arranged above the shell, and the oil equalizing pipe is connected or fixed with an oil pool in the shell through the welded seat ring and the support.
Obviously, the existing connection fixing mode needs to add two parts, and the manufacturing cost is increased. Moreover, since the oil equalizing pipe is exposed outside the compressor, the oil equalizing pipe not only occupies a large space, but also is easily deformed by force and even damaged in severe cases.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a compressor with an oil equalizing pipe, which overcomes the difficulties in the prior art, can fix the oil equalizing pipe between a liquid storage device and a shell of the compressor without adding parts, and has the advantages of small occupied space, difficult damage and low manufacturing cost.
According to an aspect of the present invention, there is provided a compressor with an oil equalizing pipe, the compressor with the oil equalizing pipe comprising: the device comprises a shell, a cylinder, a liquid storage device, an air inlet connecting pipe, an exhaust pipe, a seat ring and an oil equalizing pipe;
the air cylinder is arranged in the shell, an air suction hole is formed in the air cylinder, an opening is formed in the side wall of the shell and corresponds to the air suction hole of the air cylinder, the seat ring is arranged in the opening and is fixedly connected with the shell, the seat ring is provided with a copper pipe, the air inlet connecting pipe is inserted in the copper pipe, the liquid storage device is arranged outside the shell and is connected with the air inlet connecting pipe, and the liquid storage device is communicated with the air suction hole of the air cylinder through the air inlet connecting pipe;
the pipe wall of the copper pipe is provided with a through hole, the edge of the through hole is provided with a flanging structure, the flanging structure faces the outer side of the copper pipe, the bottom end of the oil equalizing pipe is inserted into the flanging structure and is communicated with the copper pipe, and the top end of the oil equalizing pipe is communicated with the exhaust pipe.
Optionally, in the compressor with the oil equalizing pipe, the outer wall of the oil equalizing pipe is attached to the inner wall of the flange structure, and the oil equalizing pipe is fixedly connected to the flange structure.
Optionally, in the compressor with the oil equalizing pipe, the inside diameter of the flanging structure is kept consistent, and the inside diameter of the flanging structure is equal to the diameter of the through hole; or alternatively
The inside diameter of turn-ups structure from bottom to top increases gradually, just turn-ups structure's minimum inside diameter with the diameter of through-hole equals.
Optionally, in the compressor with the oil equalizing pipe, the axial direction of the flanging structure is consistent with the axial direction of the oil equalizing pipe.
Optionally, in the compressor with the oil equalizing pipe, the axial direction of the flanging structure is perpendicular to the axial direction of the copper pipe.
Optionally, in the compressor with the oil equalizing pipe, the flanging structure is connected with the copper pipe into a whole.
Optionally, in the compressor with the oil equalizing pipe, a preset distance is kept between the bottom end of the oil equalizing pipe and the air inlet connecting pipe.
Optionally, the compressor with the oil equalizing pipe further comprises a reservoir support, the reservoir support is provided with a bending connecting piece, the bending connecting piece comprises a vertical portion and a horizontal portion, the vertical portion is fixedly connected with the housing, the horizontal portion is separately provided with a limiting hole, and the oil equalizing pipe is inserted into the limiting hole.
Optionally, the compressor with the oil equalizing pipe further comprises a rubber sleeve, the rubber sleeve is provided with a central through hole, and the central through hole and the limiting hole are coaxially arranged;
the rubber sleeve is sleeved in the limiting hole, the oil equalizing pipe is inserted into the central through hole of the rubber sleeve, and the inner wall of the rubber sleeve is attached to the outer wall surface of the oil equalizing pipe.
Optionally, in the compressor with the oil equalizing pipe, the compressor is a rotary compressor.
In the compressor with the oil equalizing pipe, the copper pipe of the seat ring structure is lengthened, the through hole is formed in the lengthened part, and the flanging structure is arranged at the same time, so that the oil equalizing pipe is connected and fixed, the manufacturing cost can be reduced, and the oil equalizing pipe can be fixed between the liquid storage device and the shell, so that the space occupied by the oil equalizing pipe is reduced, and the oil equalizing pipe is prevented from being damaged.
Drawings
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that the features and advantages of the present invention will be more apparent.
FIG. 1 is a schematic structural diagram of a compressor with an oil equalizing pipe according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of region A of FIG. 1;
FIG. 3 is an enlarged schematic view of region B of FIG. 1;
FIG. 4 is a cross-sectional view of a rubber boot according to an embodiment of the present invention;
fig. 5 is a plan view of a rubber boot according to an embodiment of the present invention.
Detailed Description
Hereinafter, a detailed description will be given of embodiments of the present invention. While the invention will be described and illustrated in connection with certain specific embodiments thereof, it should be understood that the invention is not limited to those embodiments. Rather, modifications and equivalents of the invention are intended to be included within the scope of the claims.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and components are not shown in detail in order not to obscure the subject matter of the invention.
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that the features and advantages of the present invention will be more apparent.
Please refer to fig. 1 to fig. 3, which are schematic structural diagrams of a compressor with an oil equalizing pipe according to an embodiment of the present invention. As shown in fig. 1 to 3, the compressor with oil equalizing pipe 100 includes: the device comprises a shell 1, a cylinder 2, a liquid storage device 3, an air inlet connecting pipe 4, an exhaust pipe 5, a seat ring 6 and an oil equalizing pipe 7; the cylinder 2 is arranged in the shell 1, an opening is arranged on the side wall of the shell 1, the opening corresponds to a suction hole (not shown in the figure) of the cylinder 2, the seat ring 6 is arranged in the opening and is fixedly connected with the shell 1, the seat ring 6 is provided with a copper pipe 61, the air inlet connecting pipe 4 is arranged in the copper pipe 61, the liquid storage device 3 is arranged outside the shell 1 and is connected with the air inlet connecting pipe 4, and the liquid storage device 3 is communicated with the suction hole of the cylinder 2 through the air inlet connecting pipe 4; the tube wall of the copper tube 61 is provided with a through hole, the edge of the through hole is provided with a flanging structure 62, the flanging structure 62 faces the outer side of the copper tube 61, the bottom end of the oil equalizing tube 7 is inserted into the flanging structure 62 and is communicated with the copper tube 61, and the top end of the oil equalizing tube 7 is communicated with the exhaust tube 5.
Specifically, the compressor 100 includes a casing 1, a cylinder 2, a reservoir 3, an intake connection pipe 4, and an exhaust pipe 5. Wherein, blast pipe 5 set up in the upper end of casing 1, reservoir 3 set up in outside the casing 1, cylinder 2 set up in the casing 1. The cylinder 2 has a suction hole (not shown in the drawings) communicating with the reservoir 3. One end of the air inlet connecting pipe 4 is inserted into the air suction hole, the other end of the air inlet connecting pipe 4 is connected with the liquid storage device 3, and the liquid storage device 3 is communicated with the air suction hole of the air cylinder 2 through the air inlet connecting pipe 4.
Preferably, the cross-sectional shape of the intake connecting pipe 4 is matched with the cross-sectional shape of the intake hole. Further, the cross-sectional shapes of the air suction hole and the air inlet connecting pipe 4 are both circular. Thus, the manufacturing process can be simplified and the reliability of connection can be improved.
With reference to fig. 2, an opening is formed in a side wall of the housing 1, the opening corresponds to a suction hole of the cylinder 2, the seat ring 6 is disposed in the opening and is fixedly connected to the housing 1, the seat ring 6 includes a copper pipe 61 and a base (reference numeral is not shown in the figure), preferably, the copper pipe 61 is located at a central position of the base, a length direction (i.e., an axial direction) of the copper pipe 61 is consistent with a length direction (i.e., an axial direction) of the intake connecting pipe 4, and preferably, the copper pipe 61 is disposed coaxially with the intake connecting pipe 4. The pipe wall of the copper pipe 61 is provided with a through hole, the edge of the through hole is provided with a flanging structure 62, the flanging structure 62 faces the outer side of the copper pipe 61, the top end of the oil equalizing pipe 7 is communicated with the exhaust pipe 5, and the bottom end of the oil equalizing pipe 7 is inserted into the flanging structure 62 and is communicated with the copper pipe 61.
The inner diameter of the flanging structure 62 is set according to the outer diameter of the oil equalizing pipe 7, the oil equalizing pipe 7 can be inserted into the flanging structure 62, and the outer wall of the oil equalizing pipe 7 is attached to the inner wall of the flanging structure 62. Preferably, the oil equalizing pipe 7 is fixedly connected with the flanging structure 62.
In this embodiment, the oil equalizing pipe 7 is fixedly connected with the flange structure 62 in a welding manner. In other embodiments, the oil equalizing pipe 7 and the flanging structure 62 can also be fixedly connected by heat shrinkage or other means.
In this embodiment, the inside diameter of the flange structure 62 is consistent and equal to the diameter of the through hole. In other embodiments, the inside diameter of the flange structure 62 gradually increases from bottom to top, and the minimum inside diameter of the flange structure 62 is equal to the diameter of the through hole. Therefore, the gap between the bottom end of the oil equalizing pipe 7 and the flanging structure 62 is also gradually increased from bottom to top to form a flaring shape, and more welding materials can be accumulated during welding, so that the connection between the bottom end of the oil equalizing pipe 7 and the flanging structure is more reliable.
Preferably, the flange structure 62 is connected with the copper pipe 61 into a whole, the axial direction of the flange structure 62 is consistent with the axial direction of the oil equalizing pipe 7, and the axial direction of the flange structure 62 is perpendicular to the axial direction of the copper pipe 61.
Preferably, the bottom end of the oil equalizing pipe 7 keeps a preset distance from the air inlet connecting pipe 4. Therefore, the blockage caused by siphon can be avoided during subsequent welding.
Referring to fig. 1 and 3, the compressor 100 with the oil equalizing pipe further includes a reservoir holder (reference numeral is not shown in the figures), the reservoir holder is used for fixedly connecting the reservoir 3 and the housing 1, a bent connecting member 8 is disposed in the reservoir holder, the bent connecting member 8 includes a vertical portion and a horizontal portion, the vertical portion is fixedly connected with the housing 1, a limiting hole (not shown in the figures) is disposed in the horizontal portion, and the oil equalizing pipe 7 is inserted into the limiting hole, so that the bent connecting member 8 limits a middle pipe body portion of the oil equalizing pipe 7 between the reservoir 3 and the housing 1.
In this embodiment, because the middle pipe body part of the oil equalizing pipe 7 is arranged between the outer side of the shell 1 and the liquid storage device 3, the inner space of the compressor is saved, the increase of the size of the compressor and the increase of the cost are avoided, and the welding between the oil equalizing pipe 7 and the copper pipe 61 can be carried out after the assembly of the compressor body, so that the operation is easy.
In order to better fix the oil equalizing pipe 7 and avoid abrasion of the oil equalizing pipe 7, a rubber sleeve can be additionally arranged in a limiting hole of the bending connecting piece 8 and is coaxially arranged with the limiting hole, the oil equalizing pipe 7 is inserted into the rubber sleeve and enables the inner wall surface of the rubber sleeve to be attached to the outer wall surface of the oil equalizing pipe 7, and the rubber sleeve is fixed on the oil equalizing pipe 7 under the elastic action.
Referring to fig. 4 and 5, the rubber sleeve has a central through hole, a diameter D1 of the central through hole is set according to an outer diameter of the oil equalizing pipe 7, the diameter of the central through hole is smaller than the outer diameter of the oil equalizing pipe 7 in a natural state, and is consistent with the outer diameter of the oil equalizing pipe 7 in an elastic state, in order to facilitate the oil equalizing pipe 7 to be inserted into the rubber sleeve, a slit is provided in a side wall of the rubber sleeve, one end of the slit is communicated with the central through hole, and the other end of the slit is communicated with the outside.
In this embodiment, the rubber sleeve is the integrated into one piece structure, the external diameter D2 of rubber sleeve is 145mm, the width D of slit is below 10mm, the front end of rubber sleeve is provided with the chamfer structure, the chamfer angle theta of rubber sleeve front end is 30, the rear end of rubber sleeve is provided with protruding structure, the height of protruding structure is 6.5mm, the biggest external diameter D3 of protruding structure place position is 158 mm.
In this embodiment, as long as the copper pipe is lengthened on original seat circle structure to set up the through-hole and set up flange structure simultaneously in lengthening the part, cooperate original reservoir support just can the equal oil pipe 7 of fixed mounting, need not increase new seat circle and new support, saved two parts, reduced manufacturing cost, in addition equal oil pipe 7's position is fixed in reservoir 3 with between the casing 1, not only occupation space is little, and non-deformable is impaired moreover.
In this embodiment, the compressor 100 is a rotary compressor.
In summary, according to the compressor with the oil equalizing pipe, the copper pipe of the seat ring structure is lengthened, the through hole is formed in the lengthened part, and the flanging structure is arranged at the same time, so that the oil equalizing pipe is connected and fixed, the manufacturing cost can be reduced, and the oil equalizing pipe can be fixed between the liquid storage device and the shell, so that the space occupied by the oil equalizing pipe is reduced, and the oil equalizing pipe is prevented from being damaged.
The foregoing is a more detailed description of the present application in connection with specific preferred embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A compressor with an oil equalizing pipe is characterized by comprising: the device comprises a shell, a cylinder, a liquid storage device, an air inlet connecting pipe, an exhaust pipe, a seat ring and an oil equalizing pipe;
the air cylinder is arranged in the shell, an air suction hole is formed in the air cylinder, an opening is formed in the side wall of the shell and corresponds to the air suction hole of the air cylinder, the seat ring is arranged in the opening and is fixedly connected with the shell, the seat ring is provided with a copper pipe, the air inlet connecting pipe is inserted in the copper pipe, the liquid storage device is arranged outside the shell and is connected with the air inlet connecting pipe, and the liquid storage device is communicated with the air suction hole of the air cylinder through the air inlet connecting pipe;
the pipe wall of the copper pipe is provided with a through hole, the edge of the through hole is provided with a flanging structure, the flanging structure faces the outer side of the copper pipe, the bottom end of the oil equalizing pipe is inserted into the flanging structure and is communicated with the copper pipe, and the top end of the oil equalizing pipe is communicated with the exhaust pipe.
2. The compressor with the oil equalizing pipe as in claim 1, wherein the outer wall of the oil equalizing pipe is attached to the inner wall of the flange structure, and the oil equalizing pipe is fixedly connected to the flange structure.
3. The compressor with oil equalizing pipe of claim 1, wherein the inside diameter of said flange structure is kept uniform and the inside diameter of said flange structure is equal to the diameter of said through hole; or
The inside diameter of turn-ups structure from bottom to top increases gradually, just turn-ups structure's minimum inside diameter with the diameter of through-hole equals.
4. The compressor with the oil equalizing pipe as defined in claim 1, wherein the axial direction of said flange structure is aligned with the axial direction of said oil equalizing pipe.
5. The compressor with oil equalizing pipe as defined in claim 1, wherein the axial direction of said flange structure is perpendicular to the axial direction of said copper pipe.
6. The compressor with oil equalizing pipe as defined in claim 1, wherein said flange structure is integrally formed with said copper pipe.
7. The compressor with the oil equalizing pipe as defined in claim 1, wherein a predetermined distance is maintained between the bottom end of the oil equalizing pipe and the air inlet connection pipe.
8. The compressor with the oil equalizing pipe as defined in claim 1, further comprising a reservoir bracket having a bent connecting member, wherein the bent connecting member comprises a vertical portion and a horizontal portion, the vertical portion is fixedly connected to the housing, the horizontal portion is separately provided with a limiting hole, and the oil equalizing pipe is inserted into the limiting hole.
9. The compressor with the oil equalizing pipe as in claim 8, further comprising a rubber sleeve, wherein the rubber sleeve has a central through hole, and the central through hole is coaxially arranged with the limiting hole;
the rubber sleeve is sleeved in the limiting hole, the oil equalizing pipe is inserted into the central through hole of the rubber sleeve, and the inner wall of the rubber sleeve is attached to the outer wall surface of the oil equalizing pipe.
10. The compressor with oil equalization pipe as claimed in claim 1, wherein said compressor is a rotary compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110087446.2A CN114810601A (en) | 2021-01-22 | 2021-01-22 | Compressor with oil equalizing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110087446.2A CN114810601A (en) | 2021-01-22 | 2021-01-22 | Compressor with oil equalizing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114810601A true CN114810601A (en) | 2022-07-29 |
Family
ID=82524003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110087446.2A Pending CN114810601A (en) | 2021-01-22 | 2021-01-22 | Compressor with oil equalizing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114810601A (en) |
-
2021
- 2021-01-22 CN CN202110087446.2A patent/CN114810601A/en active Pending
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