CN211950853U - Sliding vane compressor and refrigerating device - Google Patents
Sliding vane compressor and refrigerating device Download PDFInfo
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- CN211950853U CN211950853U CN202020122708.5U CN202020122708U CN211950853U CN 211950853 U CN211950853 U CN 211950853U CN 202020122708 U CN202020122708 U CN 202020122708U CN 211950853 U CN211950853 U CN 211950853U
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Abstract
The utility model discloses a sliding vane compressor and a refrigerating device, wherein the sliding vane compressor comprises an upper cylinder and a lower cylinder, the upper cylinder is provided with an upper working cavity, and a plurality of upper sliding vanes are arranged in the upper working cavity; the lower cylinder is provided with a lower working cavity, and a plurality of lower sliding sheets are arranged in the lower working cavity; and a gas passing channel is arranged between the lower working cavity and the upper working cavity, one end of the gas passing channel is communicated with the high-pressure end of the lower working cavity, and the other end of the gas passing channel is communicated with the low-pressure end of the upper working cavity. Sliding vane compressor, improved sliding vane compressor's reliability, through adopting the doublestage compressor structure, reduce the gleitbretter backpressure, for adapting to different space demands, adopt the varactor technique simultaneously, reach energy-conserving purpose.
Description
Technical Field
The utility model belongs to the refrigeration field especially relates to a sliding vane compressor and refrigerating plant.
Background
The sliding vane compressor has the advantages that the number of sliding vanes is large, the sliding vane pressure difference is large under severe working conditions, the reliability of the sliding vane compressor is seriously reduced, and the service life of the sliding vane compressor is greatly prolonged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sliding vane compressor and refrigerating plant to reduce the gleitbretter backpressure, for adapting to different space demands, adopt the varactor technique simultaneously, reach energy-conserving purpose.
In order to achieve the above object, the present invention provides a sliding vane compressor and a refrigerating device, which comprises:
a sliding vane compressor comprises an upper cylinder and a lower cylinder, wherein the upper cylinder is provided with an upper working cavity, and a plurality of upper sliding vanes are arranged in the upper working cavity; the lower cylinder is provided with a lower working cavity, and a plurality of lower sliding sheets are arranged in the lower working cavity; and a gas passing channel is arranged between the lower working cavity and the upper working cavity, one end of the gas passing channel is communicated with the high-pressure end of the lower working cavity, and the other end of the gas passing channel is communicated with the low-pressure end of the upper working cavity.
Furthermore, a partition plate is arranged between the upper air cylinder and the lower air cylinder, and separates the upper working cavity from the lower working cavity.
Further, the air passage is arranged on the partition plate and comprises a main cavity; one end of the main cavity is communicated with an upper hole which is communicated with the upper working cavity; the other end of the main cavity is communicated with a lower hole which is communicated with the lower working cavity.
Furthermore, the partition board comprises an upper board and a lower board which are fixedly connected with each other, the upper hole is formed in the upper board, the lower hole is formed in the lower board, an opening is formed in the surface, which is attached to each other, of the upper board and the lower board, and the openings of the upper board and the lower board are folded into the main cavity.
Furthermore, the air passage is communicated with an air supply passage which is used for supplying medium-pressure low-temperature refrigerants.
Furthermore, an upper flange is arranged on the upper side of the upper air cylinder, a lower flange is arranged on the lower side of the lower air cylinder, and the crankshaft is rotationally connected with the upper flange and the lower flange.
Furthermore, the lower flange is provided with a locking mechanism, the locking mechanism comprises a clamping ring, the clamping ring is driven to lift, and when the clamping ring rises, the clamping ring fixes the lower sliding sheet in the lower sliding groove; when the snap ring descends, the lower slider is driven by centrifugal force to slide along the lower chute.
Further, the clamping grooves are formed in the lower sliding piece and the crankshaft respectively, the clamping grooves in the lower sliding piece and the crankshaft are communicated with each other and form an annular groove concentric with the crankshaft, the upper end of the clamping ring is provided with a buckle, and the buckle and the annular groove are clamped to fix the lower sliding piece in the lower sliding groove.
Furthermore, the lower flange is provided with an air passage, the lower end of the clamping ring is sleeved at the tail end of the air passage, air is ventilated through the air passage, and the lifting of the clamping ring is controlled.
A refrigerating device comprises the sliding vane compressor.
The utility model discloses a sliding vane compressor and refrigerating plant has following advantage: the reliability of the sliding vane compressor is improved, the two-stage compressor structure is adopted, the backpressure of the sliding vane is reduced, meanwhile, the variable volume technology is adopted for meeting different space requirements, and the purpose of energy conservation is achieved.
Drawings
Fig. 1 is a longitudinal sectional view of a sliding vane compressor of the present invention;
fig. 2 is a cross sectional view of the sliding vane compressor of the present invention.
The notation in the figure is:
1. an upper cylinder; 11. an upper flange; 2. a lower cylinder; 21. a lower flange; 3. a partition plate; 31. an upper plate; 32. a lower plate; 33. a gas passage; 331. a main chamber; 332. an upper hole; 333. a lower hole; 4. an upper sliding sheet; 5. a lower slip sheet; 6. a crankshaft; 7. a gas supply channel; 8. a snap ring; 81. an annular groove; 9. and (6) air channels.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.
As shown in fig. 1, the sliding vane compressor of the present invention includes an upper cylinder 1 and a lower cylinder 2. The upper cylinder 1 is provided with an upper working cavity, the lower cylinder 2 is provided with a lower working cavity, a partition plate 3 is arranged between the upper cylinder 1 and the lower cylinder 2, and the partition plate 3 separates the upper working cavity from the lower working cavity. A plurality of upper sliding sheets 4 are arranged in the upper working cavity, and a plurality of lower sliding sheets 5 are arranged in the lower working cavity. The crankshaft 6 is driven by the motor to rotate, the crankshaft 6 drives the upper slide plate 4 and the lower slide plate 5 to rotate in the upper working cavity and the lower working cavity respectively, and gas compression is achieved.
An air passing channel 33 is arranged between the lower working cavity and the upper working cavity, one end of the air passing channel 33 is communicated with the high-pressure end of the lower working cavity, and the other end of the air passing channel 33 is communicated with the low-pressure end of the upper working cavity. And the lower working chamber is communicated with an air suction hole, and the upper working chamber is communicated with an air exhaust hole. With the rotation of the motor and the sliding of the sliding sheet, a refrigerant enters the sliding sheet type compressor from the air suction hole, is compressed by the lower working chamber and the upper working chamber, is discharged into the motor chamber from the air exhaust hole, and is subjected to subsequent circulation.
The air passage 33 is provided in the partition 3, and the air passage 33 includes a main chamber 331. An upper hole 332 is communicated with one end of the main cavity 331, and the upper hole 332 is communicated with the upper working cavity; the other end of the main cavity 331 is communicated with a lower hole 333, and the lower hole 333 is communicated with the lower working cavity. The partition 3 includes an upper plate 31 and a lower plate 32 fixedly connected to each other, an upper hole 332 is provided on the upper plate 31, a lower hole 333 is provided on the lower plate 32, an opening is formed on a surface where the upper plate 31 and the lower plate 32 are attached to each other, and the openings of the upper plate 31 and the lower plate 32 are closed to form the main cavity 331.
The air passage 33 is also communicated with an air replenishing passage 7 so as to replenish air for the working cavity. The air supply passage 7 penetrates the upper flange 11, the upper cylinder 1 and the upper plate 31 in sequence, and is thus communicated with the air passing passage 33.
For connecting the crankshaft 6, the upper side of the upper cylinder 1 is provided with an upper flange 11, the lower side of the lower cylinder 2 is provided with a lower flange 21, and the crankshaft 6 is rotatably connected to the upper flange 11 and the lower flange 21.
As shown in fig. 2, the cylindrical surface of the crankshaft 6 is provided with upper sliding grooves and lower sliding grooves, the upper sliding pieces 4 are inserted into the corresponding upper sliding grooves one by one, and the upper sliding pieces 4 are inserted into the corresponding lower sliding grooves one by one. Therefore, when the crankshaft 6 rotates, the sliding vanes rotate around the shaft and slide in the sliding grooves under the action of centrifugal force, so that the interval between the adjacent sliding vanes is changed, and compression is realized.
The sliding vane compressor also has a capacity-variable function, the lower flange 21 is provided with a locking mechanism, the locking mechanism comprises a snap ring 8, the snap ring 8 is driven to lift, and after the snap ring 8 rises, the snap ring 8 fixes the lower sliding vane 5 in the lower sliding chute, so that single-stage capacity-variable compression is realized; when the snap ring 8 descends, the lower slip sheet 5 is driven by centrifugal force to slide along the lower slip groove, and two-stage compression is realized. The lower sliding sheet 5 and the crankshaft 6 are respectively provided with a clamping groove, and the clamping grooves of the lower sliding sheet 5 and the crankshaft 6 are mutually communicated and form an annular groove 81 concentric with the crankshaft 6. The 8 upper ends of snap ring are formed with the buckle, and the buckle outer wall is the conical surface, and the inner wall is the cylinder, buckle and annular groove 81 joint to gleitbretter 5 is fixed under in the spout down. In order to control the lifting of the clamping ring 8, the lower flange 21 is provided with an air passage 9, the lower end of the clamping ring 8 is sleeved at the tail end of the air passage 9, air is ventilated through the air passage 9, and the lifting of the clamping ring 8 is controlled.
Two-stage compression state of the sliding vane compressor:
a low-pressure or non-refrigerant is introduced into the gas path 9, the snap ring 8 descends under the action of gravity, the lower sliding sheet 5 is in a working state at the moment, the refrigerant sucked from the lower cylinder 2 is compressed and then discharged into the main cavity 331 and is mixed with the medium-pressure low-temperature refrigerant introduced by the air supply channel 7, (the pressure of the medium-pressure low-temperature refrigerant is greater than the suction pressure and less than the discharge pressure, and the temperature of the medium-pressure low-temperature refrigerant is less than the suction temperature); then the gas enters the upper air cylinder 1, is compressed and discharged out of the upper flange 11, and finally is discharged out of the sliding vane type compressor.
Single-stage variable capacity compression of a sliding vane compressor:
high-pressure refrigerants are introduced into the air path 9, the clamp ring 8 rises under the action of gas pressure, the clamp ring 8 is inserted into the annular groove 81, the lower sliding sheet 5 is in a stop operation state, the lower air cylinder 2 does not operate, refrigerants sucked from the lower air cylinder 2 are directly discharged into the main cavity 331, the air supplementing channel 7 which can be closed or opened at the moment forms a single-stage compression process or a single-stage air supplementing compression process, the air supplementing device is suitable for environments with small capacity requirements, and therefore the purpose of energy conservation is achieved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (10)
1. A sliding vane compressor is characterized by comprising an upper air cylinder (1) and a lower air cylinder (2), wherein the upper air cylinder (1) is provided with an upper working cavity, and a plurality of upper sliding vanes (4) are arranged in the upper working cavity; the lower cylinder (2) is provided with a lower working cavity, and a plurality of lower sliding sheets (5) are arranged in the lower working cavity; an air passing channel (33) is arranged between the lower working cavity and the upper working cavity, one end of the air passing channel (33) is communicated with the high-pressure end of the lower working cavity, and the other end of the air passing channel is communicated with the low-pressure end of the upper working cavity.
2. Sliding vane compressor according to claim 1, characterized in that a partition (3) is arranged between the upper cylinder (1) and the lower cylinder (2), the partition (3) separating the upper working chamber from the lower working chamber.
3. Sliding vane compressor according to claim 2, characterized in that the air passage (33) is provided on the diaphragm (3), the air passage (33) comprising a main chamber (331); one end of the main cavity (331) is communicated with an upper hole (332), and the upper hole (332) is communicated with the upper working cavity; the other end of the main cavity (331) is communicated with a lower hole (333), and the lower hole (333) is communicated with the lower working cavity.
4. Sliding vane compressor according to claim 3, characterized in that the partition (3) comprises an upper plate (31) and a lower plate (32) fixed to each other, the upper hole (332) is provided in the upper plate (31), the lower hole (333) is provided in the lower plate (32), the upper plate (31) and the lower plate (32) are provided with openings on their surfaces, and the openings of the upper plate (31) and the lower plate (32) are closed to form the main chamber (331).
5. Sliding vane compressor according to claim 4, characterized in that the air passage (33) is connected to an air supply passage (7), and the air supply passage (7) is used for supplying medium-pressure low-temperature refrigerant.
6. Sliding vane compressor according to claim 1, characterized in that the upper cylinder (1) is provided with an upper flange (11) at the upper side and the lower cylinder (2) is provided with a lower flange (21) at the lower side, and the crankshaft (6) is rotatably connected with the upper flange (11) and the lower flange (21).
7. Sliding vane compressor according to claim 6, characterized in that the lower flange (21) is provided with a locking mechanism comprising a snap ring (8), the snap ring (8) being driven to rise and fall; when the clamping ring (8) rises, the clamping ring (8) fixes the lower sliding sheet (5) in the lower sliding groove; when the snap ring (8) descends, the lower slide (5) is driven by centrifugal force to slide along the lower chute.
8. The sliding-vane compressor of claim 7, wherein the lower sliding vane (5) and the crankshaft (6) are respectively provided with a slot, the slots of the lower sliding vane (5) and the crankshaft (6) are communicated with each other and form an annular slot (81) concentric with the crankshaft (6), the upper end of the snap ring (8) is provided with a buckle, and the buckle is clamped with the annular slot (81), so as to fix the lower sliding vane (5) in the lower sliding slot.
9. The sliding vane compressor of claim 7, wherein the lower flange (21) is provided with an air passage (9), the lower end of the snap ring (8) is sleeved at the tail end of the air passage (9), and the air is ventilated through the air passage (9) to control the lifting of the snap ring (8).
10. A refrigerating device comprising a sliding vane compressor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122708.5U CN211950853U (en) | 2020-01-19 | 2020-01-19 | Sliding vane compressor and refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122708.5U CN211950853U (en) | 2020-01-19 | 2020-01-19 | Sliding vane compressor and refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211950853U true CN211950853U (en) | 2020-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020122708.5U Active CN211950853U (en) | 2020-01-19 | 2020-01-19 | Sliding vane compressor and refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211950853U (en) |
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2020
- 2020-01-19 CN CN202020122708.5U patent/CN211950853U/en active Active
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