CN111577601B - Compressor and refrigerating system with same - Google Patents
Compressor and refrigerating system with same Download PDFInfo
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- CN111577601B CN111577601B CN202010462962.4A CN202010462962A CN111577601B CN 111577601 B CN111577601 B CN 111577601B CN 202010462962 A CN202010462962 A CN 202010462962A CN 111577601 B CN111577601 B CN 111577601B
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
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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
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a compressor and a refrigeration system with the same. The compressor includes: a housing; and compression portion, compression portion establish in the casing, compression portion have spout the enthalpy compression chamber and with spout the enthalpy passageway that the enthalpy compression chamber communicates, compression portion includes: the first cylinder is provided with a first sliding sheet groove and a first sliding sheet, and the first sliding sheet is arranged in the first sliding sheet groove in a reciprocating manner between a first extending position and a first retracting position; the second air cylinder is provided with a second sliding sheet groove and a second sliding sheet, and the second sliding sheet is arranged in the second sliding sheet groove in a reciprocating manner between a second extending position and a second retracting position; and the partition plate is arranged between the first cylinder and the second cylinder, a lubricating oil channel is arranged on the partition plate, and the lubricating oil channel is communicated with at least one of the first sliding sheet groove and the second sliding sheet groove. The compressor provided by the embodiment of the invention has the advantages of good lubricating effect, difficulty in abrasion of the sliding sheet groove and the sliding sheet, good reliability and the like.
Description
Technical Field
The invention relates to a compressor and also relates to a refrigeration system with the compressor.
Background
The enhanced vapor injection compressor in the related technology has better low-temperature heating performance. The ultralow temperature environment not only influences the heating effect of the compressor, easily consumes excessive energy, but also enables the compressor to operate under the working condition of high-frequency high-pressure ratio, and the slip sheet of the air cylinder moves rapidly relative to the slip sheet groove, so that the local oil temperature of the slip sheet rises, the oil viscosity drops, and the oil film becomes thin, thereby accelerating the abrasion of the slip sheet and the slip sheet groove and reducing the reliability of the compressor.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present invention propose a compressor and a refrigeration system having the same.
A compressor according to an embodiment of the present invention includes: a housing; and a compression part, the compression part is established in the casing, the compression part have spout enthalpy compression chamber and with spout the enthalpy passageway that the enthalpy compression chamber communicates, the compression part includes: the first air cylinder is provided with a first sliding sheet groove and a first sliding sheet, and the first sliding sheet is arranged in the first sliding sheet groove in a reciprocating manner between a first extending position and a first retracting position; the second air cylinder is provided with a second sliding sheet groove and a second sliding sheet, and the second sliding sheet is arranged in the second sliding sheet groove in a reciprocating manner between a second extending position and a second retracting position; and the partition plate is arranged between the first cylinder and the second cylinder, a lubricating oil channel is arranged on the partition plate, and the lubricating oil channel is communicated with at least one of the first sliding sheet groove and the second sliding sheet groove.
The compressor provided by the embodiment of the invention has the advantages of good lubricating effect, difficulty in abrasion of the sliding sheet groove and the sliding sheet and good reliability.
Optionally, the lubricating oil passage includes an upper lubricating oil passage and a lower lubricating oil passage, the upper lubricating oil passage communicates with a lower end portion of the first vane groove, and the lower lubricating oil passage communicates with an upper end portion of the second vane groove.
Optionally, a first end of the upper lubrication oil channel is open, the first end of the upper lubrication oil channel is far away from the middle of the partition plate along a first radial direction of the first cylinder, and the first radial direction is consistent with the extending direction of the first vane groove; and/or a first end part of the lower lubricating oil channel is opened, the first end part of the lower lubricating oil channel is far away from the middle part of the partition plate along a second radial direction of the second cylinder, and the second radial direction is consistent with the extending direction of the second sliding sheet groove.
Optionally, an upper end of the upper lubrication oil passage is open, and a lower end of the lower lubrication oil passage is open.
Optionally, a depth of the upper lubrication oil passage in an axial direction of the first cylinder is 0.5 mm or more, a first portion of the upper lubrication oil passage is opposed to the first vane groove in the axial direction of the first cylinder, the first portion is located inside an outer end surface of the first vane located at the first retracted position, a length of the first portion in the first radial direction is 1 mm or more, and the first radial direction coincides with an extending direction of the first vane groove; and/or a depth of the lower lubrication oil passage in an axial direction of the first cylinder is 0.5 mm or more, a second portion of the lower lubrication oil passage is opposed to the second vane groove in the axial direction of the first cylinder, the second portion is located inside an outer end surface of the second vane located at the second retracted position, a length of the second portion in the second radial direction is 1 mm or more, and the second radial direction coincides with an extending direction of the second vane groove.
Optionally, the enthalpy injection channel is disposed on the partition plate, a second end of the upper lubrication oil channel is open, the second end of the upper lubrication oil channel is far away from the enthalpy injection channel along a third radial direction of the first cylinder, and the third radial direction is perpendicular to the first radial direction; and/or a second end of the lower lubrication oil passage is open, the second end of the lower lubrication oil passage being distant from the enthalpy injection passage in a fourth radial direction of the second cylinder, the fourth radial direction being perpendicular to the second radial direction.
Optionally, the distance between the upper lubricating oil channel and the enthalpy spraying channel is greater than or equal to 1 mm; and/or the distance between the lower lubricating oil channel and the enthalpy spraying channel is more than or equal to 1 mm.
Optionally, a diversion hole is formed in the partition plate, the diversion hole is communicated with each of the upper lubricating oil channel and the lower lubricating oil channel, optionally, the diversion hole is opposite to the first vane slot in the axial direction of the first cylinder, the diversion hole is opposite to the second vane slot in the axial direction of the first cylinder, the diversion hole is located on the inner side of the outer end face of the first vane located at the first retraction position and on the inner side of the outer end face of the second vane located at the second retraction position, the upper end of the diversion hole is communicated with the upper lubricating oil channel, and the lower end of the diversion hole is communicated with the lower lubricating oil channel.
Optionally, the upper surface of the partition plate is provided with an upper step portion so as to form the upper lubrication passage, and the lower surface of the partition plate is provided with a lower step portion so as to form the lower lubrication passage.
Optionally, a first portion of the upper lubrication oil passage is opposed to the first vane groove in the axial direction of the first cylinder, and a width of the first portion in the circumferential direction of the first cylinder is equal to or greater than a width of the first vane groove in the circumferential direction of the first cylinder; and/or a second portion of the lower lubrication oil passage is opposed to the second vane groove in the axial direction of the first cylinder, and a width of the second portion in the circumferential direction of the first cylinder is equal to or greater than a width of the second vane groove in the circumferential direction of the first cylinder.
A refrigeration system according to an embodiment of the present invention includes a compressor according to an embodiment of the present invention.
The refrigeration system provided by the embodiment of the invention has the advantage of good reliability.
Drawings
Fig. 1 is a schematic structural view of a compressor according to an embodiment of the present invention;
fig. 2 is a partial structural schematic view of a compressor according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a partition plate of a compressor according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a partition plate of a compressor according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a partition plate of a compressor according to an embodiment of the present invention;
FIG. 6 is a sectional view of a partition plate of a compressor according to an embodiment of the present invention;
fig. 7 is a sectional view of a partition plate of a compressor according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A compressor 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. As shown in fig. 1 to 7, a compressor 100 according to an embodiment of the present invention includes a shell 1 and a compression portion 2, the compression portion 2 being provided in the shell 1, the compression portion 2 having an enthalpy injection compression chamber and an enthalpy injection passage 32 communicating with the enthalpy injection compression chamber.
The compression portion 2 includes a first cylinder 21, a second cylinder 22, and a partition plate 3. The first cylinder 21 has a first vane groove 211 and a first vane 213, and the first vane 213 is reciprocally disposed in the first vane groove 211 between a first extended position and a first retracted position. The second cylinder 22 has a second vane groove 221 and a second vane 223, and the second vane 223 is provided in the second vane groove 221 so as to be reciprocally movable between a second extended position and a second retracted position. The partition plate 3 is provided between the first cylinder 21 and the second cylinder 22, the partition plate 3 is provided with a lubricating oil passage 31, and the lubricating oil passage 31 communicates with at least one of the first vane groove 211 and the second vane groove 221.
Since the compressor 100 according to an embodiment of the present invention has the enthalpy injection compression chamber and the enthalpy injection passage 32, the partition plate 3 of the compressor 100 according to an embodiment of the present invention is larger than that of a compressor without the enthalpy injection compression chamber and the enthalpy injection passage to seal the enthalpy injection passage 32. For example, the partition plate 3 of the compressor 100 may have a projection 34 so that the enthalpy injection passage 32 is sealed with the projection 34.
The enthalpy injection passage 32 may be provided in the partition plate 3, the enthalpy injection passage 32 may be provided in an end surface (e.g., a lower end surface) of the first cylinder 21 adjacent to the partition plate 3, and the enthalpy injection passage 32 may be provided in an end surface (e.g., an upper end surface) of the second cylinder 21 adjacent to the partition plate 3.
However, since the partition plate 3 of the compressor 100 according to the embodiment of the present invention is larger than that of a compressor having no enthalpy injection compression chamber and enthalpy injection passage, the partition plate 3 covers the first vane groove 211 and the second vane groove 221. Therefore, the first vane groove 211 and the second vane groove 221 cannot form a lubrication circuit communicating with the oil sump, and the lubricating oil introduced into the first vane groove 211 and the second vane groove 221 cannot return to the oil sump through the lubrication circuit.
The compressor 100 according to the embodiment of the present invention can cause the lubricating oil in the casing 1 to enter the at least one of the first vane groove 211 and the second vane groove 221 through the lubricating oil passage 31 by providing the lubricating oil passage 31 in communication with the at least one of the first vane groove 211 and the second vane groove 221 on the partition plate 3.
The lubricating oil passage 31 can thereby become a lubricating circuit communicating with the oil sump, and the lubricating oil in the at least one of the first vane groove 211 and the second vane groove 221 can be returned to the oil sump through the lubricating oil passage 31, so that not only can more lubricating oil be made to enter the at least one of the first vane groove 211 and the second vane groove 221, but also the flow speed of the lubricating oil in the at least one of the first vane groove 211 and the second vane groove 221 can be increased.
This effectively lubricates at least one of the first vane groove 211 and the second vane groove 221, quickly removes heat generated by friction between the vane grooves and the vanes, effectively reduces wear of the vane grooves and the vanes, and improves reliability of the compressor 100.
Therefore, the compressor 100 according to the embodiment of the present invention has advantages of good lubrication effect, less wear of the vane grooves and the vanes, good reliability, etc.
As shown in fig. 1 to 7, the compressor 100 includes a casing 1 and a compression portion 2, the compression portion 2 is provided in the casing 1, and the compression portion 2 has an enthalpy injection compression chamber and an enthalpy injection passage 32 communicating with the enthalpy injection compression chamber.
The compression portion 2 includes a first cylinder 21, a second cylinder 22, and a partition plate 3. The first cylinder 21 has a first vane groove 211 and a first vane 213, and the second cylinder 22 has a second vane groove 221 and a second vane 223. The first slide piece 213 is reciprocatably disposed in the first slide piece groove 211 between the first extended position and the first retracted position, and the second slide piece 223 is reciprocatably disposed in the second slide piece groove 221 between the second extended position and the second retracted position. The extension means that the first slide plate 213 extends out of the first slide plate groove 211 and the second slide plate 223 extends out of the second slide plate groove 221, and the retraction means that the first slide plate 213 retracts into the first slide plate groove 211 and the second slide plate 223 retracts into the second slide plate groove 221.
The partition 3 is provided between the first cylinder 21 and the second cylinder 22. As shown in fig. 2, alternatively, the first cylinder 21 is located above the second cylinder 22, the first vane slot 211 is located above the second vane slot 221, and the first vane 213 is located above the second vane 223.
The partition plate 3 is provided with a lubricating oil passage 31, and the lubricating oil passage 31 communicates with at least one of the first vane groove 211 and the second vane groove 221. Alternatively, the lubricating oil passage 31 includes an upper lubricating oil passage 311 and a lower lubricating oil passage 312, the upper lubricating oil passage 311 communicating with the lower end portion 212 of the first vane groove 211, and the lower lubricating oil passage 312 communicating with the upper end portion 222 of the second vane groove 221. Here, the lubricating oil may enter the first vane groove 211 through the upper lubricating oil passage 311, and the lubricating oil may enter the second vane groove 221 through the lower lubricating oil passage 312.
Therefore, lubricating oil can enter each of the first slide groove 211 and the second slide groove 221, so that the first slide groove 211, the first slide 213, the second slide groove 221 and the second slide 223 can be effectively lubricated, heat generated by friction between the first slide groove 211 and the first slide 213 and heat generated by friction between the second slide groove 221 and the second slide 223 are quickly taken away, the phenomenon that the oil temperature is too high and the oil film between friction pairs is thinned due to the heat generated by friction between the first slide groove 211 and the first slide 213 and the heat generated by friction between the second slide groove 221 and the second slide 223 is prevented, the abrasion of the first slide groove 211, the first slide 213, the second slide groove 221 and the second slide 223 is effectively reduced, and the reliability of the compressor 100 is further improved.
As shown in fig. 2, the upper lubrication passage 311 may be located below the first vane groove 211, and the lower lubrication passage 312 may be located above the second vane groove 221.
As shown in fig. 2 to 6, the upper end portion 3112 of the upper lubrication passage 311 is opened, and the lower end portion 3122 of the lower lubrication passage 312 is opened, so that the partition 3 does not cover the first and second vane grooves 211 and 221. The vertical direction is shown by an arrow a in fig. 2. For example, the up-down direction may coincide with the axial direction of the crankshaft 4 of the compressor 100.
Therefore, the processing difficulty of the upper lubricating oil channel 311 and the lower lubricating oil channel 312 can be reduced, lubricating oil can enter the upper lubricating oil channel 311 and the lower lubricating oil channel 312 more easily, and further the lubricating oil can enter the first sliding sheet groove 211 and the second sliding sheet groove 221 more easily, so that the first sliding sheet groove 211, the first sliding sheet 213, the second sliding sheet groove 221 and the second sliding sheet 223 can be lubricated more effectively, and the reliability of the compressor 100 can be further improved.
As shown in fig. 2 to 6, the first end portion 3111 of the upper lubrication oil passage 311 is open, and the first end portion 3111 of the upper lubrication oil passage 311 is distant from the middle portion of the partition plate 3 in the first radial direction of the first cylinder 21. In other words, the first end portion 3111 of the upper lubrication oil passage 311 is an end portion of the upper lubrication oil passage 311 that is farther from the middle portion of the partition plate 3 in the first radial direction of the first cylinder 21, i.e., the first end portion 3111 of the upper lubrication oil passage 311 is an end portion of the upper lubrication oil passage 311 that is farther from the crankshaft 4 in the first radial direction of the first cylinder 21. The first radial direction of the first cylinder 21 is consistent with the extending direction of the first vane slot 211, that is, the first radial direction of the first cylinder 21 is consistent with the moving direction of the first vane 213.
The first end portion 3121 of the lower lubrication oil passage 312 is open, and the first end portion 3121 of the lower lubrication oil passage 312 is distant from the middle portion of the diaphragm 3 in the second radial direction of the second cylinder 22. That is, the first end 3121 of the lower lubrication oil passage 312 is an end of the lower lubrication oil passage 312 that is farther from the middle portion of the diaphragm 3 in the second radial direction of the second cylinder 22, i.e., the first end 3121 of the lower lubrication oil passage 312 is an end of the lower lubrication oil passage 312 that is farther from the crankshaft 4 in the second radial direction of the second cylinder 22. The second radial direction of the second cylinder 22 coincides with the extending direction of the second vane groove 221, that is, the second radial direction of the second cylinder 22 coincides with the moving direction of the second vane 223.
Therefore, the difficulty in processing the upper lubricating oil channel 311 and the lower lubricating oil channel 312 can be further reduced, lubricating oil can enter the upper lubricating oil channel 311 and the lower lubricating oil channel 312 more easily, and further lubricating oil can enter the first slide groove 211 and the second slide groove 221 more easily, so that the first slide groove 211, the first slide 213, the second slide groove 221 and the second slide groove 223 can be lubricated more effectively, and the reliability of the compressor 100 can be further improved.
Alternatively, the first radial direction of the first cylinder 21 and the second radial direction of the second cylinder 22 may be coincident. The first radial direction of the first cylinder 21 is indicated by an arrow B in fig. 2, and the second radial direction of the second cylinder 22 is indicated by an arrow C in fig. 2.
As shown in fig. 3 and 4, the enthalpy injection passage 32 is provided on the separator 3. The second end 3113 of the upper lubrication oil passage 311 is open, and the second end 3113 of the upper lubrication oil passage 311 is distant from the enthalpy injection passage 32 in the third radial direction of the first cylinder 21. That is, the second end 3113 of the upper lubrication oil passage 311 is the end of the upper lubrication oil passage 311 that is farther from the enthalpy injection passage 32 in the third radial direction of the first cylinder 21. The third radial direction of the first cylinder 21 is perpendicular to the first radial direction of the first cylinder 21.
The second end portion 3123 of the lower lubrication passage 312 is open, and the second end portion 3123 of the lower lubrication passage 312 is away from the enthalpy injection passage 32 in the fourth radial direction of the second cylinder 22. That is, the second end 3123 of the lower lubrication passage 312 is the end of the lower lubrication passage 312 that is radially away from the enthalpy injection passage 32 along the fourth of the second cylinder 22. The fourth radial direction of the second cylinder 22 is perpendicular to the second radial direction of the second cylinder 22.
Therefore, the difficulty in processing the upper lubricating oil channel 311 and the lower lubricating oil channel 312 can be further reduced, lubricating oil can enter the upper lubricating oil channel 311 and the lower lubricating oil channel 312 more easily, and further lubricating oil can enter the first slide groove 211 and the second slide groove 221 more easily, so that the first slide groove 211, the first slide 213, the second slide groove 221 and the second slide groove 223 can be lubricated more effectively, and the reliability of the compressor 100 can be further improved.
Alternatively, the third radial direction of the first cylinder 21 and the fourth radial direction of the second cylinder 22 may be coincident. The third radial direction of the first cylinder 21 is indicated by an arrow D in fig. 3, and the fourth radial direction of the second cylinder 22 is indicated by an arrow F in fig. 3.
Alternatively, the upper surface of the partition plate 3 is provided with an upper step portion so as to form the upper lubrication oil passage 311, and the lower surface of the partition plate 3 is provided with a lower step portion so as to form the lower lubrication oil passage 312. This makes it possible to further rationalize the structure of the partition 3.
As shown in fig. 4, 5 and 7, the partition plate 3 is provided with a pilot hole 33, and the pilot hole 33 communicates with each of the upper lubrication oil passage 311 and the lower lubrication oil passage 312. Through the arrangement of the guide hole 33, the flow of the lubricating oil can be accelerated, and the heat generated by friction can be taken away more quickly, so that the first vane groove 211, the first vane 213, the second vane groove 221 and the second vane 223 can be lubricated more effectively, and the reliability of the compressor 100 can be further improved.
Alternatively, the upper end of the pilot hole 33 communicates with the upper lubrication passage 311, and the lower end of the pilot hole 33 communicates with the lower lubrication passage 312. This makes it possible to further rationalize the structure of the partition 3.
Alternatively, the pilot hole 33 is opposed to the first vane groove 211 in the axial direction of the first cylinder 21, and the pilot hole 33 is opposed to the second vane groove 221 in the axial direction of the first cylinder 21. In other words, the guide hole 33 is vertically opposed to the first vane groove 211, and the guide hole 33 is vertically opposed to the second vane groove 221. The guide holes 33 are located inside the outer end surface of the first vane 213 at the first retracted position and inside the outer end surface of the second vane 223 at the second retracted position. The first retracted position is a farthest position at which the first slide piece 213 moves in a direction away from the center of the first cylinder 21, and the second retracted position is a farthest position at which the second slide piece 223 moves in a direction away from the center of the second cylinder 22.
The guide holes 33 are located in the moving regions of the first and second vanes 213 and 223, so that the flow speed of the lubricant oil in the friction regions of the first and second vane grooves 211 and 213 and the friction regions of the second and second vane grooves 221 and 223 can be increased, thereby more effectively lubricating the first and second vane grooves 211 and 213 and the second and second vane grooves 221 and 223 and further improving the reliability of the compressor 100.
The depth of the upper lubrication oil passage 311 in the axial direction of the first cylinder 21 is 0.5 mm or more, that is, the depth of the upper lubrication oil passage 311 in the up-down direction is 0.5 mm or more. Thus, a sufficient amount of lubricant may be received in the upper lubricant passage 311, and thus a sufficient amount of lubricant may be received in the first vane groove 211, so that the first vane groove 211 and the first vane 213 may be more effectively lubricated, further improving the reliability of the compressor 100.
The depth of the lower lubrication oil passage 312 in the axial direction of the first cylinder 21 is 0.5 mm or more, that is, the depth of the lower lubrication oil passage 312 in the up-down direction is 0.5 mm or more. Therefore, enough lubricant can be contained in the lower lubricant passage 312, and thus enough lubricant can be contained in the second vane groove 221, so that the second vane groove 221 and the second vane 223 can be more effectively lubricated, and the reliability of the compressor 100 can be further improved. The axial direction of the first cylinder 21, the axial direction of the second cylinder 22, and the axial direction of the crankshaft 4 may be coincident with each other.
The first portion of the upper lubrication oil passage 311 is opposed to the first vane groove 211 in the axial direction of the first cylinder 21. In other words, the first portion of the upper lubrication passage 311 is opposed to the first vane groove 211 in the up-down direction, i.e., the first portion of the upper lubrication passage 311 is located directly below the first vane groove 211. The first portion of the upper lubrication oil passage 311 is located inside the outer end surface of the first vane 213 located at the first retracted position. The length of the first portion of the upper lubrication oil passage 311 in the first radial direction of the first cylinder 21 is 1 mm or more.
The first retracted position is the farthest position where the first slide piece 213 moves in a direction away from the center of the first cylinder 21, and therefore the inner side of the outer end surface of the first slide piece 213 located at the first retracted position is the movement region of the first slide piece 213. A portion of the first vane groove 211 located inside the outer end surface of the first vane 213 located at the first retracted position rubs against the first vane 213.
By making the length of the first portion of the upper lubrication oil passage 311 in the first radial direction of the first cylinder 21 greater than or equal to 1 mm (i.e., the length of the first portion of the upper lubrication oil passage 311 in the moving region of the first vane 213 greater than or equal to 1 mm), it is possible to supply a sufficient amount of lubrication oil to the first vane groove 211, so that the first vane groove 211 and the first vane 213 are lubricated more effectively, further improving the reliability of the compressor 100.
A second portion of the lower lubrication oil passage 312 is opposed to the second vane groove 221 in the axial direction of the first cylinder 21. In other words, the second portion of the lower lubrication passage 312 is opposite to the second vane groove 221 in the up-down direction, i.e., the second portion of the lower lubrication passage 312 is located directly above the second vane groove 221. The second portion of the lower lubrication oil passage 312 is located inside the outer end surface of the second vane 223 located at the second retracted position, and the length of the second portion of the lower lubrication oil passage 312 in the second radial direction of the second cylinder 22 is 1 mm or more.
The second retracted position is the farthest position where the second vane 223 moves in a direction away from the center of the second cylinder 22, and thus the inner side of the outer end surface of the second vane 223 located at the second retracted position is the movement region of the second vane 223. A portion of the second vane groove 221 that is located inside the outer end surface of the second vane 223 located at the second retracted position rubs against the second vane 223.
By making the length of the second portion of the lower lubrication oil passage 312 in the second radial direction of the second cylinder 22 equal to or greater than 1 mm (i.e., the length of the second portion of the lower lubrication oil passage 312 in the moving region of the second vane 223 equal to or greater than 1 mm), it is possible to supply a sufficient amount of lubrication oil to the second vane groove 221, so that the second vane groove 221 and the second vane 223 are lubricated more effectively, further improving the reliability of the compressor 100.
Alternatively, the width of this first portion of the upper lubrication oil passage 311 in the circumferential direction of the first cylinder 21 is equal to or greater than the width of the first vane groove 211 in the circumferential direction of the first cylinder 21. The width of this second portion of the lower lubrication oil passage 312 in the circumferential direction of the first cylinder 21 is equal to or greater than the width of the second vane groove 221 in the circumferential direction of the first cylinder 21. The circumferential direction of the first cylinder 21 and the circumferential direction of the second cylinder 22 may be coincident.
It is thereby possible to supply sufficient lubricating oil to the first and second vane grooves 211 and 221 to more effectively lubricate the first and second vane grooves 211 and 213 and the second and second vane grooves 221 and 223, further improving the reliability of the compressor 100.
Optionally, the distance between the upper lubricant passage 311 and the enthalpy injection passage 32 is greater than or equal to 1 mm, and the distance between the lower lubricant passage 312 and the enthalpy injection passage 32 is greater than or equal to 1 mm. The tightness of the enthalpy injection passage 32 can thereby be ensured.
The distance between the upper lubrication oil passage 311 and the enthalpy injection passage 32 is: the distance in the plane perpendicular to the axial direction of the crankshaft 4 between any one point of the upper lubrication oil passage 311 and any one point of the enthalpy injection passage 32. Specifically, a plane perpendicular to the axial direction of the crankshaft 4 is a first plane, a projection of any point of the upper lubricant passage 311 on the first plane is a point P1, a projection of any point of the enthalpy injection passage 32 on the first plane is a point P2, and a distance between the point P1 and the point P2 is a distance between the upper lubricant passage 311 and the enthalpy injection passage 32.
The distance between the lower lube oil passage 312 and the enthalpy injection passage 32 is: the distance in the plane perpendicular to the axial direction of the crankshaft 4 between any one point of the lower lubrication oil passage 312 and any one point of the enthalpy injection passage 32. Specifically, a plane perpendicular to the axial direction of the crankshaft 4 is a first plane, a projection of any point of the lower lubricant passage 312 on the first plane is a point P3, a projection of any point of the enthalpy injection passage 32 on the first plane is a point P2, and a distance between the point P3 and the point P2 is a distance between the lower lubricant passage 312 and the enthalpy injection passage 32.
The invention also provides a refrigeration system. The refrigeration system according to the embodiment of the present invention includes the compressor 100 according to the above-described embodiment of the present invention.
Therefore, the refrigeration system provided by the embodiment of the invention has the advantages of good reliability, good low-temperature heating performance and the like.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A compressor, comprising:
a housing; and
the compression portion, the compression portion is established in the casing, the compression portion have spout the enthalpy compression chamber and with spout the enthalpy passageway that the enthalpy compression chamber communicates, the compression portion includes:
the first air cylinder is provided with a first sliding sheet groove and a first sliding sheet, and the first sliding sheet is arranged in the first sliding sheet groove in a reciprocating manner between a first extending position and a first retracting position;
the second air cylinder is provided with a second sliding sheet groove and a second sliding sheet, and the second sliding sheet is arranged in the second sliding sheet groove in a reciprocating manner between a second extending position and a second retracting position; and
the partition plate is arranged between the first cylinder and the second cylinder, a lubricating oil channel is arranged on the partition plate, the lubricating oil channel is used as a lubricating loop communicated with an oil pool, and the lubricating oil channel is communicated with at least one of the first sliding sheet groove and the second sliding sheet groove.
2. The compressor of claim 1, wherein the lubrication passage includes an upper lubrication passage and a lower lubrication passage, the upper lubrication passage communicating with a lower end portion of the first vane groove, the lower lubrication passage communicating with an upper end portion of the second vane groove.
3. The compressor of claim 2,
a first end of the upper lubricating oil channel is open, the first end of the upper lubricating oil channel is far away from the middle of the partition plate along a first radial direction of the first cylinder, and the first radial direction is consistent with the extending direction of the first slide plate groove; and/or
The first end of the lower lubricating oil channel is open, the first end of the lower lubricating oil channel is far away from the middle of the partition plate along the second radial direction of the second cylinder, and the second radial direction is consistent with the extending direction of the second sliding sheet groove.
4. The compressor of claim 3, wherein an upper end portion of the upper lubrication passage is open and a lower end portion of the lower lubrication passage is open.
5. The compressor of claim 4,
a depth of the upper lubrication oil passage in an axial direction of the first cylinder is 0.5 mm or more, a first portion of the upper lubrication oil passage is opposed to the first vane groove in the axial direction of the first cylinder, the first portion is located inside an outer end surface of the first vane at the first retracted position, a length of the first portion in the first radial direction is 1 mm or more, and the first radial direction coincides with an extending direction of the first vane groove; and/or
The depth of the lower lubrication oil passage in the axial direction of the first cylinder is 0.5 mm or more, a second portion of the lower lubrication oil passage is opposed to the second vane groove in the axial direction of the first cylinder, the second portion is located inside an outer end surface of the second vane located at the second retracted position, the length of the second portion in the second radial direction is 1 mm or more, and the second radial direction coincides with the extending direction of the second vane groove.
6. The compressor of claim 4, wherein the enthalpy injection passage is provided on the partition plate,
a second end of the upper lubrication oil passage is open, the second end of the upper lubrication oil passage is far away from the enthalpy injection passage along a third radial direction of the first cylinder, and the third radial direction is perpendicular to the first radial direction; and/or
A second end of the lower lubrication oil passage is open, the second end of the lower lubrication oil passage is radially away from the enthalpy injection passage along a fourth direction of the second cylinder, the fourth direction being perpendicular to the second direction.
7. Compressor according to claim 2 or 6,
the distance between the upper lubricating oil channel and the enthalpy spraying channel is more than or equal to 1 mm; and/or
The distance between the lower lubricating oil channel and the enthalpy spraying channel is more than or equal to 1 millimeter.
8. The compressor of claim 2, wherein said partition is provided with a pilot hole, said pilot hole communicating with each of said upper lubricant passage and said lower lubricant passage.
9. The compressor of claim 8, wherein the pilot hole is opposed to the first vane groove in the axial direction of the first cylinder, the pilot hole is opposed to the second vane groove in the axial direction of the first cylinder, the pilot hole is located inside an outer end surface of the first vane in the first retracted position and inside an outer end surface of the second vane in the second retracted position, an upper end of the pilot hole communicates with the upper lubrication oil passage, and a lower end of the pilot hole communicates with the lower lubrication oil passage.
10. The compressor of claim 2, wherein an upper surface of the partition plate is provided with an upper step portion to form the upper lubrication passage, and a lower surface of the partition plate is provided with a lower step portion to form the lower lubrication passage.
11. The compressor of claim 2,
a first portion of the upper lubrication oil passage is opposed to the first vane groove in the axial direction of the first cylinder, and a width of the first portion in the circumferential direction of the first cylinder is equal to or greater than a width of the first vane groove in the circumferential direction of the first cylinder; and/or
A second portion of the lower lubrication oil passage is opposed to the second vane groove in the axial direction of the first cylinder, and a width of the second portion in the circumferential direction of the first cylinder is equal to or greater than a width of the second vane groove in the circumferential direction of the first cylinder.
12. A refrigeration system comprising a compressor according to any one of claims 1-11.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462962.4A CN111577601B (en) | 2020-05-27 | 2020-05-27 | Compressor and refrigerating system with same |
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| CN202010462962.4A CN111577601B (en) | 2020-05-27 | 2020-05-27 | Compressor and refrigerating system with same |
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| CN111577601B true CN111577601B (en) | 2022-08-12 |
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| CN111577601A (en) | 2020-08-25 |
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