EP3492748B1 - Compressor as well as cooling-heating refrigeration device and cooling-only refrigeration device having same - Google Patents
Compressor as well as cooling-heating refrigeration device and cooling-only refrigeration device having same Download PDFInfo
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- EP3492748B1 EP3492748B1 EP16910097.1A EP16910097A EP3492748B1 EP 3492748 B1 EP3492748 B1 EP 3492748B1 EP 16910097 A EP16910097 A EP 16910097A EP 3492748 B1 EP3492748 B1 EP 3492748B1
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- Prior art keywords
- cylinder
- valve port
- heat exchanger
- interface
- suction
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- 238000001816 cooling Methods 0.000 title claims description 36
- 238000010438 heat treatment Methods 0.000 title claims description 27
- 238000005057 refrigeration Methods 0.000 title description 3
- 239000003507 refrigerant Substances 0.000 description 27
- 230000006835 compression Effects 0.000 description 22
- 238000007906 compression Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 14
- 238000000926 separation method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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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
- F04C23/008—Hermetic pumps
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- 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
- F04C23/001—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 of similar working principle
Definitions
- the present disclosure relates to refrigerating field, more particularly to a compressor, a cooling and heating type refrigerating device and a single cooling type refrigerating device having the same.
- a compressor according to the preamble of claim 1 is disclosed in KR10-2013-0081107 .
- heating capacity of the existing conditioner particularly in a low ambient temperature will significantly attenuate, and cannot meet the user's demand for heat requirement. Additionally, with the implementation of the APF energy efficiency for the air conditioner, insufficiency of the heating capacity of the air conditioner at low temperature becomes prominent increasingly, and solutions to this problem are desired to be sought.
- the present disclosure seeks to solve at least one of the problems existing in the related art to at least some extent.
- the present disclosure proposes a compressor, which has a high indicated efficiency of gas compression for a second cylinder.
- the present disclosure also proposes a cooling and heating type refrigerating device having the above-described compressor.
- the present disclosure yet proposes a single cooling type refrigerating device having the above-described compressor.
- the compressor includes: a housing provided with an exhaust pipe, a first suction pipe and a second suction pipe; a first cylinder disposed in the housing, the first cylinder defining a first exhaust passage and a first suction passage communicated with the first suction pipe, a suction volume of the first cylinder being denoted by V1, and a minimum flow area of the first suction passage being denoted by S1; and a second cylinder disposed in the housing, the second cylinder defining a second exhaust passage and a second suction passage communicated with the second suction pipe, a suction volume of the second cylinder being denoted by V2, and a minimum flow area of the second suction passage being denoted by S2; a suction pressure of the second cylinder being greater than a suction pressure of the first cylinder, and the first cylinder and the second cylinder satisfying: 1.2 ⁇ V2/V1 ⁇ S2/S1.
- the compressor according to embodiments of the present disclosure by satisfying 1.2 ⁇ V2/V1 ⁇ S2/S1, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency, is easy to manufacture and is safe and reliable.
- the first cylinder and the second cylinder further satisfy: 1.4 ⁇ V2/V1 ⁇ A2/A1, in which A1 refers to a minimum flow area of the first exhaust passage, and A2 refers to a minimum flow area of the second exhaust passage.
- first cylinder and the second cylinder further satisfy: A2/A1 ⁇ 4 ⁇ V2/V1.
- first cylinder and the second cylinder further satisfy: S2/S1 ⁇ 5 ⁇ V2/V1.
- the second suction passage is internally provided with a filter screen.
- the cooling and heating type refrigerating device includes: a compressor according to the above-described embodiments of the present disclosure; a reversing assembly including a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being communicated with one of the second valve port and the third valve port, the fourth valve port being communicated with the other of the second valve port and the third valve port, the first valve port being connected to the exhaust pipe, and the fourth valve port being connected to the first suction pipe; an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger having a first end connected to the second valve port, and the outdoor heat exchanger having a first end connected to the third valve port; and a flash evaporator provided with a first interface, a second interface and a third interface, a first throttling element being connected in series between the first interface and a second end of the indoor heat exchanger, a second throttling element being connected in series between the second interface and a second
- the cooling and heating type refrigerating device by providing the compressor according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency.
- the compressor also includes a reservoir, the reservoir is provided with an inlet and an outlet, the inlet is connected to the fourth valve port, and the outlet is connected to the first suction pipe.
- the reversing assembly is a four-way valve.
- the first throttling element is a capillary, an electronic expansion valve or a thermal expansion valve
- the second throttling element is a capillary, an electronic expansion valve or a thermal expansion valve
- the single cooling type refrigerating device includes: a compressor according to the above-described embodiments of the present disclosure; an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger having a first end connected to the first suction pipe, and the outdoor heat exchanger having a first end connected to the exhaust pipe; and a flash evaporator provided with a first interface, a second interface and a third interface, a first throttling element being connected in series between the first interface and a second end of the indoor heat exchanger, a second throttling element being connected in series between the second interface and a second end of the outdoor heat exchanger, and the third interface being connected to the second suction pipe.
- the compressor according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency.
- first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance.
- the feature defined with “first” and “second” may comprise one or more of this feature.
- the term “a plurality of' means two or more than two, unless specified otherwise.
- the terms “mounted,” “connected,” “coupled,” “fixed” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements.
- the above terms can be understood by those skilled in the art according to specific situations.
- a compressor 100 according to embodiments of the present disclosure will be described below in detail with reference to Figs. 1 to 4 , and a refrigerant used in an interior of the compressor 100 may be any one of HCFC, HFC, HC, HFO, or a mixture of one or more refrigerants.
- the compressor 100 includes a housing 1, a first cylinder 2 and a second cylinder 3.
- the housing 1 is provided with an exhaust pipe 10, a first suction pipe 11 and a second suction pipe 12.
- the first cylinder 2 is disposed in the housing 1.
- the first cylinder 2 defines a first exhaust passage 20 and a first suction passage 21 communicated with the first suction pipe 11, a suction volume of the first cylinder 2 is denoted by V1, and a minimum flow area of the first suction passage 21 is denoted by S1. That is to say, the first cylinder 2 defines the first exhaust passage 20 and the first suction passage 21, the first suction passage 21 is communicated with the first suction pipe 11, and the first exhaust passage 20 is communicated with the exhaust pipe 10.
- the second cylinder 3 is disposed in the housing 1, the second cylinder 3 defines a second exhaust passage 30 and a second suction passage 31 communicated with the second suction pipe 12. That is to say, the second cylinder 3 defines the second exhaust passage 30 and the second suction passage 31, the second suction passage 31 is communicated with the second suction pipe 12, and the second exhaust passage 30 is communicated with the exhaust pipe 10.
- a suction volume of the second cylinder 3 is denoted by V2
- a minimum flow area of the second suction passage 31 is denoted by S2.
- the compressor 100 further includes an electric motor 4, a crankshaft 5, a first piston 6 and a second piston 7 or other elements.
- the electric motor 4 is disposed in the housing 1, and a rotor of the electric motor 4 is secured to the crankshaft 5 to drive the crankshaft 5 to rotate.
- the first piston 6 and the second piston 7 are fitted over the crankshaft 5 separately to be driven to rotate by the crankshaft 5.
- the first piston 6 is eccentrically and rotatably disposed in a cylinder chamber of the first cylinder 2
- the second piston 7 is eccentrically and rotatably disposed in a cylinder chamber of the second cylinder 3.
- the first exhaust passage 20 and the second exhaust passage 30 are each provided with an exhaust valve.
- a suction pressure of the second cylinder 3 is greater than a suction pressure of the first cylinder 2, and a suction density of the second cylinder 3 is also higher than that of the first cylinder 2.
- the first cylinder 2 and the second cylinder 3 satisfy the following relation: 1.2 ⁇ V2/V1 ⁇ S2/S1.
- the compressor 100 by satisfying 1.2 ⁇ V2/V1 ⁇ S2/S1, the loss of the suction pressure of the second cylinder 3 can be reduced, the high indicated efficiency of the gas compression for the second cylinder 3 can be ensured, such that the compressor 100 has better energy efficiency, is easy to manufacture and is safe and reliable.
- the first cylinder 2 and the second cylinder 3 have the same exhaust pressure, opening times for the exhaust valves of the first cylinder 2 and the second cylinder 3 are different due to different suction pressures. Therefore, as illustrated in Fig. 4 , in some embodiments of the present disclosure, the first cylinder 2 and the second cylinder 3 further satisfy the following relation: 1.4 ⁇ V2/V1 ⁇ A2/A1, in which A1 refers to a minimum flow area of the first exhaust passage 20, and A2 refers to a minimum flow area of the second exhaust passage 30.
- A1 refers to a minimum flow area of the first exhaust passage 20
- A2 refers to a minimum flow area of the second exhaust passage 30.
- the first cylinder 2 and the second cylinder 3 also satisfy the following relation: A2/A1 ⁇ 4 ⁇ V2/V1.
- the high indicated efficiency of the gas compression for the second cylinder 3 can be further ensured, such that the compressor 100 has better energy efficiency.
- the first cylinder 2 and the second cylinder 3 also satisfy the following relation: S2/S1 ⁇ 5 ⁇ V2/V1.
- the high indicated efficiency of the gas compression for the second cylinder 3 can be further ensured, such that the compressor 100 has better energy efficiency.
- the second suction passage 31 is internally provided with a filter screen 9.
- the filter screen 9 may be secured to the second suction pipe 12 or to an inner peripheral wall of the second suction passage 31.
- a cooling and heating type refrigerating device 1000 according to embodiments of the present disclosure will be elaborated in the following with reference to Figs. 1 to 6 , and the cooling and heating type refrigerating device 1000 has a cooling mode and a heating mode.
- the cooling and heating type refrigerating device 1000 includes the compressor 100 according to the above-described embodiments of the present disclosure, a reversing assembly 200, an indoor heat exchanger 300, an outdoor heat exchanger 400 and a flash evaporator 500.
- the reversing assembly 200 includes a first valve port a, a second valve port b, a third valve port c and a fourth valve port d.
- the first valve port a is communicated with one of the second valve port b and the third valve port c
- the fourth valve port d is communicated with the other of the second valve port b and the third valve port c
- the first valve port a is connected to the exhaust pipe 10
- the fourth valve port d is connected to the first suction pipe 11.
- the indoor heat exchanger 300 has a first end connected to the second valve port b
- the outdoor heat exchanger 400 has a first end connected to the third valve port c.
- the reversing assembly 200 is a four-way valve.
- the reversing assembly 200 may also be formed as other structures, as long as the first valve port a through the fourth valve port d are included and the reversing can be realized.
- the flash evaporator 500 is provided with a first interface e, a second interface f and a third interface g, and the flash evaporator 500 has an effect of gas-liquid separation.
- the first interface e and a second end of the indoor heat exchanger 300 is provided with a first throttling element 600 connected in series therebetween
- the second interface f and a second end of the outdoor heat exchanger 400 is provided with a second throttling element 700 connected in series therebetween
- the third interface g is connected to the second suction pipe 12.
- Both of the first throttling element 600 and the second throttling element 700 have effects of throttling and pressure reduction.
- the first throttling element 600 is a capillary, an electronic expansion valve or a thermal expansion valve
- the second throttling element 700 is a capillary, an electronic expansion valve or a thermal expansion valve.
- the refrigerant discharged from the first cylinder 2 and the second cylinder 3 flows to the outdoor heat exchanger 400 through the exhaust pipe 10 of the compressor 100 and the reversing assembly 200 for condensation and heat dissipation.
- the refrigerant discharged from the outdoor heat exchanger 400 is throttled and reduced in pressure by the second throttling element 700 and discharged into the flash evaporator 500 through the second interface f for gas-liquid separation.
- the separated liquid refrigerant flows to the first throttling element 600 through the first interface e for throttling and pressure reduction.
- the refrigerant discharged from the first throttling element 600 is discharged to the indoor heat exchanger 300 for evaporation and heat absorption.
- the refrigerant discharged from the indoor heat exchanger 300 flows to the first cylinder 2 through the reversing assembly 200 and the first suction pipe 11 for compression.
- the separated gaseous refrigerant is discharged to the second cylinder 3 through the third interface g and the second suction pipe 12 for compression. Consequently, the suction pressure of the first suction pipe 11 is lower than the suction pressure of the second suction pipe 12.
- the outdoor heat exchanger 400 is a condensor
- the indoor heat exchanger 300 is an evaporator.
- the refrigerant discharged from the first cylinder 2 and the second cylinder 3 flows to the indoor heat exchanger 300 through the exhaust pipe 10 of the compressor 100 and the reversing assembly 200 for condensation and heat dissipation.
- the refrigerant discharged from the indoor heat exchanger 300 is throttled and reduced in pressure by the first throttling element 600 and discharged into the flash evaporator 500 through the first interface e for gas-liquid separation.
- the separated liquid refrigerant flows to the second throttling element 700 through the second interface f for throttling and pressure reduction.
- the refrigerant discharged from the second throttling element 700 is discharged to the outdoor heat exchanger 400 for evaporation and heat absorption.
- the refrigerant discharged from the outdoor heat exchanger 400 flows to the first cylinder 2 through the reversing assembly 200 and the first suction pipe 11 for compression.
- the separated gaseous refrigerant is discharged to the second cylinder 3 through the third interface g and the second suction pipe 12 for compression. Consequently, the suction pressure of the first suction pipe 11 is lower than the suction pressure of the second suction pipe 12.
- the indoor heat exchanger 300 is a condensor
- the outdoor heat exchanger 400 is an evaporator.
- the first cylinder 2 isentropically compresses the gaseous working medium from a suction state point 1 to an exhaust state point 2.
- the second cylinder 3 isentropically compresses a saturated vapor state point 3 to an exhaust state point 3'.
- High-temperature gases of the point 2 and the point 3' are mixed within the housing 1 and then enter the condensor, and are condensed to a state point 5 after heat exchange through the condensor.
- the refrigerant of the state point 5 is supercooled to some extent to a state point 6.
- the refrigerant of the state point 6 is throttled to a gas-liquid mixed state point 7 by the throttling element.
- the refrigerant of the gas-liquid mixed state point 7 passes through the flash evaporator 500 for gas-liquid separation, and the separated saturated vapor state point 3 enters the second cylinder 3.
- a saturated liquid state point 8 separated by the flash evaporator 500 is throttled to an evaporation pressure state point 9 by the throttling element.
- a two-phase state point 9 forms a low-temperature low-pressure superheated gas state point 1 after passing through the evaporator, and then enters the first cylinder 2.
- the cooling and heating type refrigerating device 1000 by providing the compressor 100 according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder 3 can be reduced, the high indicated efficiency of the gas compression for the second cylinder 3 can be ensured, such that the compressor 100 has better energy efficiency.
- the compressor 100 further includes a reservoir 8.
- the reservoir 8 defines an inlet m and an outlet n, the inlet m is connected to the fourth valve port d, and the outlet n is connected to the first suction pipe 11.
- the reservoir 8 can have a function of gas-liquid separation, and the refrigerant discharged from the fourth valve port d is discharged into the reservoir 8 for gas-liquid separation.
- the separated gaseous refrigerant is sucked through the first suction pipe 11 into the first cylinder 2 for compression, such that occurrence of a liquid impact phenomenon at the first cylinder 2 can be avoided, and impurities can also be prevented from entering the first cylinder 2, thereby improving the reliability of the compressor 100.
- a single cooling type refrigerating device 2000 according to embodiments of the present disclosure will be elaborated in the following with reference to Figs. 1-4 and 7 .
- the single cooling type refrigerating device 2000 includes the compressor 100 according to the above-described embodiments of the present disclosure, the indoor heat exchanger 300, the outdoor heat exchanger 400 and the flash evaporator 500.
- the indoor heat exchanger 300 has a first end connected to the first suction pipe 11, and the outdoor heat exchanger 400 has a first end connected to the exhaust pipe 10.
- the flash evaporator 500 is provided with a first interface e, a second interface f and a third interface g, and the flash evaporator 500 has an effect of gas-liquid separation.
- the first interface e and a second end of the indoor heat exchanger 300 is provided with a first throttling element 600 connected in series therebetween
- the second interface f and a second end of the outdoor heat exchanger 400 is provided with a second throttling element 700 connected in series therebetween
- the third interface g is connected to the second suction pipe 12.
- Both of the first throttling element 600 and the second throttling element 700 have effects of throttling and pressure reduction.
- the first throttling element 600 is a capillary, an electronic expansion valve or a thermal expansion valve
- the second throttling element 700 is a capillary, an electronic expansion valve or a thermal expansion valve.
- the refrigerant discharged from the first cylinder 2 and the second cylinder 3 flows to the outdoor heat exchanger 400 through the exhaust pipe 10 of the compressor 100 for condensation and heat dissipation.
- the refrigerant discharged from the outdoor heat exchanger 400 is throttled and reduced in pressure by the second throttling element 700 and discharged into the flash evaporator 500 through the second interface f for gas-liquid separation.
- the separated liquid refrigerant flows to the first throttling element 600 through the first interface e for throttling and pressure reduction.
- the refrigerant discharged from the first throttling element 600 is discharged to the indoor heat exchanger 300 for evaporation and heat absorption.
- the refrigerant discharged from the indoor heat exchanger 300 flows to the first cylinder 2 through the first suction pipe 11 for compression.
- the separated gaseous refrigerant is discharged to the second cylinder 3 through the second suction pipe 12 for compression. Consequently, the suction pressure of the first suction pipe 11 is lower than the suction pressure of the second suction pipe 12.
- the compressor 100 by providing the compressor 100 according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder 3 can be reduced, the high indicated efficiency of the gas compression for the second cylinder 3 can be ensured, such that the compressor 100 has better energy efficiency.
- a structure in which a first feature is “on” or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween.
- a first feature "on,” “above,” or “on top of' a second feature may include an embodiment in which the first feature is right or obliquely “on,” “above,” or “on top of” the second feature, or just means that the first feature is at a height higher than that of the second feature.
- first feature "below,” “under,” or “on bottom of” a second feature may include an embodiment in which the first feature is right or obliquely “below,” “under,” or “on bottom of” the second feature, or just means that the first feature is at a height lower than that of the second feature.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
- The present disclosure relates to refrigerating field, more particularly to a compressor, a cooling and heating type refrigerating device and a single cooling type refrigerating device having the same. A compressor according to the preamble of
claim 1 is disclosed inKR10-2013-0081107 - In the terms of heating technology, heating capacity of the existing conditioner, particularly in a low ambient temperature will significantly attenuate, and cannot meet the user's demand for heat requirement. Additionally, with the implementation of the APF energy efficiency for the air conditioner, insufficiency of the heating capacity of the air conditioner at low temperature becomes prominent increasingly, and solutions to this problem are desired to be sought.
- In order to address this problem, in recent years, the application of the gaseous refrigerant injection method to the compressor and the refrigeration device has attracted much attention, and in particular, research on the use of twin-cylinder rotary compressor has progressed.
- The present disclosure seeks to solve at least one of the problems existing in the related art to at least some extent.
- To this end, the present disclosure proposes a compressor, which has a high indicated efficiency of gas compression for a second cylinder.
- The present disclosure also proposes a cooling and heating type refrigerating device having the above-described compressor.
- The present disclosure yet proposes a single cooling type refrigerating device having the above-described compressor.
- The compressor according to embodiments of the present disclosure includes: a housing provided with an exhaust pipe, a first suction pipe and a second suction pipe; a first cylinder disposed in the housing, the first cylinder defining a first exhaust passage and a first suction passage communicated with the first suction pipe, a suction volume of the first cylinder being denoted by V1, and a minimum flow area of the first suction passage being denoted by S1; and a second cylinder disposed in the housing, the second cylinder defining a second exhaust passage and a second suction passage communicated with the second suction pipe, a suction volume of the second cylinder being denoted by V2, and a minimum flow area of the second suction passage being denoted by S2; a suction pressure of the second cylinder being greater than a suction pressure of the first cylinder, and the first cylinder and the second cylinder satisfying: 1.2∗V2/V1≤S2/S1.
- In the compressor according to embodiments of the present disclosure, by satisfying 1.2∗V2/V1≤S2/S1, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency, is easy to manufacture and is safe and reliable.
- In some embodiments of the present disclosure, the first cylinder and the second cylinder further satisfy: 1.4∗V2/V1≤A2/A1, in which A1 refers to a minimum flow area of the first exhaust passage, and A2 refers to a minimum flow area of the second exhaust passage.
- Further, the first cylinder and the second cylinder further satisfy: A2/A1≤4∗V2/V1.
- Further, the first cylinder and the second cylinder further satisfy: S2/S1≤5∗V2/V1.
- In some embodiments of the present disclosure, the second suction passage is internally provided with a filter screen.
- The cooling and heating type refrigerating device according to embodiments of the present disclosure includes: a compressor according to the above-described embodiments of the present disclosure; a reversing assembly including a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being communicated with one of the second valve port and the third valve port, the fourth valve port being communicated with the other of the second valve port and the third valve port, the first valve port being connected to the exhaust pipe, and the fourth valve port being connected to the first suction pipe; an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger having a first end connected to the second valve port, and the outdoor heat exchanger having a first end connected to the third valve port; and a flash evaporator provided with a first interface, a second interface and a third interface, a first throttling element being connected in series between the first interface and a second end of the indoor heat exchanger, a second throttling element being connected in series between the second interface and a second end of the outdoor heat exchanger, and the third interface being connected to the second suction pipe.
- In the cooling and heating type refrigerating device according to embodiments of the present disclosure, by providing the compressor according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency.
- Further, the compressor also includes a reservoir, the reservoir is provided with an inlet and an outlet, the inlet is connected to the fourth valve port, and the outlet is connected to the first suction pipe.
- Preferably, the reversing assembly is a four-way valve.
- Optionally, the first throttling element is a capillary, an electronic expansion valve or a thermal expansion valve, and the second throttling element is a capillary, an electronic expansion valve or a thermal expansion valve.
- The single cooling type refrigerating device according to embodiments of the present disclosure includes: a compressor according to the above-described embodiments of the present disclosure; an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger having a first end connected to the first suction pipe, and the outdoor heat exchanger having a first end connected to the exhaust pipe; and a flash evaporator provided with a first interface, a second interface and a third interface, a first throttling element being connected in series between the first interface and a second end of the indoor heat exchanger, a second throttling element being connected in series between the second interface and a second end of the outdoor heat exchanger, and the third interface being connected to the second suction pipe.
- In the single cooling type refrigerating device according to embodiments of the present disclosure, by providing the compressor according to the above-described embodiments of the present disclosure, the loss of the suction pressure of the second cylinder can be reduced, the high indicated efficiency of the gas compression for the second cylinder can be ensured, such that the compressor has better energy efficiency.
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Fig. 1 is a schematic view of a compressor according to some embodiments of the present disclosure; -
Fig. 2 is a schematic view of a compressor according to some other embodiments of the present disclosure; -
Fig. 3 is a graph showing relationship between flow area proportions of suction passages of a first cylinder and a second cylinder and an indicated efficiency of gas compression of the second cylinder; -
Fig. 4 is a graph showing relationship between flow area proportions of exhaust passages of a first cylinder and a second cylinder and an indicated efficiency of gas compression of the second cylinder; -
Fig. 5 is a schematic view of a cooling and heating type refrigerating device according to an embodiment of the present disclosure; -
Fig. 6 is a pressure-enthalpy diagram of a system circle of a cooling and heating type refrigerating device; and -
Fig. 7 is a schematic view of a single cooling type refrigerating device according to an embodiment of the present disclosure. - Reference numerals:
- cooling and heating type refrigerating
device 1000, single cooling type refrigeratingdevice 2000, -
compressor 100,housing 1,exhaust pipe 10,first suction pipe 11,second suction pipe 12, -
first cylinder 2,first exhaust passage 20,first suction passage 21, -
second cylinder 3,second exhaust passage 30,second suction passage 31, -
electric motor 4,crankshaft 5,first piston 6,second piston 7,filter screen 9, -
reservoir 8, inlet m, outlet n, -
reversing assembly 200, first valve port a, second valve port b, third valve port c, fourth valve port d, -
indoor heat exchanger 300,outdoor heat exchanger 400, -
flash evaporator 500, first interface e, second interface f, third interface g, -
first throttling element 600,seventh throttling element 700. - Embodiments of the present disclosure will be described in detail below, and examples of the embodiments are shown in accompanying drawings. The embodiments described herein with reference to drawings are explanatory, illustrative, and used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure.
- In the specification, it is to be understood that terms such as "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial" and "circumferential" should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are for convenience of description and do not require that the present disclosure be constructed or operated in a particular orientation.
- In addition, terms such as "first" and "second" are used herein for purposes of description and are not intended to indicate or imply relative importance or significance. Thus, the feature defined with "first" and "second" may comprise one or more of this feature. In the description of the present disclosure, the term "a plurality of' means two or more than two, unless specified otherwise.
- In the present disclosure, unless specified or limited otherwise, the terms "mounted," "connected," "coupled," "fixed" and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements. The above terms can be understood by those skilled in the art according to specific situations.
- A
compressor 100 according to embodiments of the present disclosure will be described below in detail with reference toFigs. 1 to 4 , and a refrigerant used in an interior of thecompressor 100 may be any one of HCFC, HFC, HC, HFO, or a mixture of one or more refrigerants. - As illustrated in
Figs. 1 and2 , thecompressor 100 according to embodiments of the present disclosure includes ahousing 1, afirst cylinder 2 and asecond cylinder 3. Thehousing 1 is provided with anexhaust pipe 10, afirst suction pipe 11 and asecond suction pipe 12. Thefirst cylinder 2 is disposed in thehousing 1. Thefirst cylinder 2 defines afirst exhaust passage 20 and afirst suction passage 21 communicated with thefirst suction pipe 11, a suction volume of thefirst cylinder 2 is denoted by V1, and a minimum flow area of thefirst suction passage 21 is denoted by S1. That is to say, thefirst cylinder 2 defines thefirst exhaust passage 20 and thefirst suction passage 21, thefirst suction passage 21 is communicated with thefirst suction pipe 11, and thefirst exhaust passage 20 is communicated with theexhaust pipe 10. - The
second cylinder 3 is disposed in thehousing 1, thesecond cylinder 3 defines asecond exhaust passage 30 and asecond suction passage 31 communicated with thesecond suction pipe 12. That is to say, thesecond cylinder 3 defines thesecond exhaust passage 30 and thesecond suction passage 31, thesecond suction passage 31 is communicated with thesecond suction pipe 12, and thesecond exhaust passage 30 is communicated with theexhaust pipe 10. A suction volume of thesecond cylinder 3 is denoted by V2, and a minimum flow area of thesecond suction passage 31 is denoted by S2. - It could be understood that, the
compressor 100 further includes anelectric motor 4, acrankshaft 5, afirst piston 6 and asecond piston 7 or other elements. Theelectric motor 4 is disposed in thehousing 1, and a rotor of theelectric motor 4 is secured to thecrankshaft 5 to drive thecrankshaft 5 to rotate. Thefirst piston 6 and thesecond piston 7 are fitted over thecrankshaft 5 separately to be driven to rotate by thecrankshaft 5. Thefirst piston 6 is eccentrically and rotatably disposed in a cylinder chamber of thefirst cylinder 2, and thesecond piston 7 is eccentrically and rotatably disposed in a cylinder chamber of thesecond cylinder 3. Thefirst exhaust passage 20 and thesecond exhaust passage 30 are each provided with an exhaust valve. The compression principle of thecompressor 100 for the refrigerant has been the prior art, which will not be described herein in detail. - A suction pressure of the
second cylinder 3 is greater than a suction pressure of thefirst cylinder 2, and a suction density of thesecond cylinder 3 is also higher than that of thefirst cylinder 2. As illustrated inFig. 2 , thefirst cylinder 2 and thesecond cylinder 3 satisfy the following relation: 1.2∗V2/V1≤S2/S1. - In the
compressor 100 according to embodiments of the present disclosure, by satisfying 1.2∗V2/V1≤S2/S1, the loss of the suction pressure of thesecond cylinder 3 can be reduced, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be ensured, such that thecompressor 100 has better energy efficiency, is easy to manufacture and is safe and reliable. - Although the
first cylinder 2 and thesecond cylinder 3 have the same exhaust pressure, opening times for the exhaust valves of thefirst cylinder 2 and thesecond cylinder 3 are different due to different suction pressures. Therefore, as illustrated inFig. 4 , in some embodiments of the present disclosure, thefirst cylinder 2 and thesecond cylinder 3 further satisfy the following relation: 1.4∗V2/V1≤A2/A1, in which A1 refers to a minimum flow area of thefirst exhaust passage 20, and A2 refers to a minimum flow area of thesecond exhaust passage 30. Thus, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be further ensured, such that thecompressor 100 has better energy efficiency. - If the minimum flow area A2 of the
second exhaust passage 30 of thesecond cylinder 3 is relatively too large, this will result in a larger clearance volume of thesecond cylinder 3, and also reduce the indicated efficiency of the compression of thesecond cylinder 3. Therefore, in further embodiments of the present disclosure, thefirst cylinder 2 and thesecond cylinder 3 also satisfy the following relation: A2/A1≤4∗V2/V1. Thus, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be further ensured, such that thecompressor 100 has better energy efficiency. - If the minimum flow area S2 of the
second exhaust passage 31 of thesecond cylinder 3 is relatively too large, this will result in a suction closing delay of thesecond suction passage 31, and reduce the indicated efficiency of the compression of thesecond cylinder 3. Therefore, according to some embodiments of the present disclosure, thefirst cylinder 2 and thesecond cylinder 3 also satisfy the following relation: S2/S1≤5∗V2/V1. Thus, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be further ensured, such that thecompressor 100 has better energy efficiency. - As illustrated in
Fig. 2 , in some embodiments of the present disclosure, thesecond suction passage 31 is internally provided with afilter screen 9. Thus, the impurities can be prevented from directly entering thesecond cylinder 3, so as to improve reliability of thecompressor 100. Specifically, thefilter screen 9 may be secured to thesecond suction pipe 12 or to an inner peripheral wall of thesecond suction passage 31. - A cooling and heating
type refrigerating device 1000 according to embodiments of the present disclosure will be elaborated in the following with reference toFigs. 1 to 6 , and the cooling and heatingtype refrigerating device 1000 has a cooling mode and a heating mode. - As illustrated in
Fig. 5 , the cooling and heatingtype refrigerating device 1000 according to embodiments of the present disclosure includes thecompressor 100 according to the above-described embodiments of the present disclosure, a reversingassembly 200, anindoor heat exchanger 300, anoutdoor heat exchanger 400 and aflash evaporator 500. The reversingassembly 200 includes a first valve port a, a second valve port b, a third valve port c and a fourth valve port d. The first valve port a is communicated with one of the second valve port b and the third valve port c, the fourth valve port d is communicated with the other of the second valve port b and the third valve port c, the first valve port a is connected to theexhaust pipe 10, and the fourth valve port d is connected to thefirst suction pipe 11. Theindoor heat exchanger 300 has a first end connected to the second valve port b, and theoutdoor heat exchanger 400 has a first end connected to the third valve port c. When the cooling and heatingtype refrigerating device 1000 is cooling, the first valve port a is communicated with the third valve port c and the second valve port b is communicated with the fourth valve port d. When the cooling and heatingtype refrigerating device 1000 is heating, the first valve port a is communicated with the second valve port b and the third valve port c is communicated with the fourth valve port d. - Preferably, the reversing
assembly 200 is a four-way valve. Certainly, it could be understood that, the reversingassembly 200 may also be formed as other structures, as long as the first valve port a through the fourth valve port d are included and the reversing can be realized. - The
flash evaporator 500 is provided with a first interface e, a second interface f and a third interface g, and theflash evaporator 500 has an effect of gas-liquid separation. The first interface e and a second end of theindoor heat exchanger 300 is provided with afirst throttling element 600 connected in series therebetween, the second interface f and a second end of theoutdoor heat exchanger 400 is provided with asecond throttling element 700 connected in series therebetween, and the third interface g is connected to thesecond suction pipe 12. Both of thefirst throttling element 600 and thesecond throttling element 700 have effects of throttling and pressure reduction. Optionally, thefirst throttling element 600 is a capillary, an electronic expansion valve or a thermal expansion valve, and thesecond throttling element 700 is a capillary, an electronic expansion valve or a thermal expansion valve. - When the cooling and heating
type refrigerating device 1000 is cooling, the refrigerant discharged from thefirst cylinder 2 and thesecond cylinder 3 flows to theoutdoor heat exchanger 400 through theexhaust pipe 10 of thecompressor 100 and the reversingassembly 200 for condensation and heat dissipation. The refrigerant discharged from theoutdoor heat exchanger 400 is throttled and reduced in pressure by thesecond throttling element 700 and discharged into theflash evaporator 500 through the second interface f for gas-liquid separation. The separated liquid refrigerant flows to thefirst throttling element 600 through the first interface e for throttling and pressure reduction. The refrigerant discharged from thefirst throttling element 600 is discharged to theindoor heat exchanger 300 for evaporation and heat absorption. The refrigerant discharged from theindoor heat exchanger 300 flows to thefirst cylinder 2 through the reversingassembly 200 and thefirst suction pipe 11 for compression. The separated gaseous refrigerant is discharged to thesecond cylinder 3 through the third interface g and thesecond suction pipe 12 for compression. Consequently, the suction pressure of thefirst suction pipe 11 is lower than the suction pressure of thesecond suction pipe 12. When cooling, theoutdoor heat exchanger 400 is a condensor, and theindoor heat exchanger 300 is an evaporator. - When the cooling and heating
type refrigerating device 1000 is heating, the refrigerant discharged from thefirst cylinder 2 and thesecond cylinder 3 flows to theindoor heat exchanger 300 through theexhaust pipe 10 of thecompressor 100 and the reversingassembly 200 for condensation and heat dissipation. The refrigerant discharged from theindoor heat exchanger 300 is throttled and reduced in pressure by thefirst throttling element 600 and discharged into theflash evaporator 500 through the first interface e for gas-liquid separation. The separated liquid refrigerant flows to thesecond throttling element 700 through the second interface f for throttling and pressure reduction. The refrigerant discharged from thesecond throttling element 700 is discharged to theoutdoor heat exchanger 400 for evaporation and heat absorption. The refrigerant discharged from theoutdoor heat exchanger 400 flows to thefirst cylinder 2 through the reversingassembly 200 and thefirst suction pipe 11 for compression. The separated gaseous refrigerant is discharged to thesecond cylinder 3 through the third interface g and thesecond suction pipe 12 for compression. Consequently, the suction pressure of thefirst suction pipe 11 is lower than the suction pressure of thesecond suction pipe 12. When heating, theindoor heat exchanger 300 is a condensor, and theoutdoor heat exchanger 400 is an evaporator. - With reference to
Fig. 6 , thefirst cylinder 2 isentropically compresses the gaseous working medium from asuction state point 1 to anexhaust state point 2. Thesecond cylinder 3 isentropically compresses a saturatedvapor state point 3 to an exhaust state point 3'. High-temperature gases of thepoint 2 and the point 3' are mixed within thehousing 1 and then enter the condensor, and are condensed to astate point 5 after heat exchange through the condensor. The refrigerant of thestate point 5 is supercooled to some extent to astate point 6. The refrigerant of thestate point 6 is throttled to a gas-liquidmixed state point 7 by the throttling element. The refrigerant of the gas-liquidmixed state point 7 passes through theflash evaporator 500 for gas-liquid separation, and the separated saturatedvapor state point 3 enters thesecond cylinder 3. A saturatedliquid state point 8 separated by theflash evaporator 500 is throttled to an evaporationpressure state point 9 by the throttling element. A two-phase state point 9 forms a low-temperature low-pressure superheatedgas state point 1 after passing through the evaporator, and then enters thefirst cylinder 2. - In the cooling and heating
type refrigerating device 1000 according to embodiments of the present disclosure, by providing thecompressor 100 according to the above-described embodiments of the present disclosure, the loss of the suction pressure of thesecond cylinder 3 can be reduced, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be ensured, such that thecompressor 100 has better energy efficiency. - In some embodiments of the present disclosure, as illustrated in
Figs. 1 ,2 and5 , thecompressor 100 further includes areservoir 8. Thereservoir 8 defines an inlet m and an outlet n, the inlet m is connected to the fourth valve port d, and the outlet n is connected to thefirst suction pipe 11. Thereservoir 8 can have a function of gas-liquid separation, and the refrigerant discharged from the fourth valve port d is discharged into thereservoir 8 for gas-liquid separation. The separated gaseous refrigerant is sucked through thefirst suction pipe 11 into thefirst cylinder 2 for compression, such that occurrence of a liquid impact phenomenon at thefirst cylinder 2 can be avoided, and impurities can also be prevented from entering thefirst cylinder 2, thereby improving the reliability of thecompressor 100. - A single cooling
type refrigerating device 2000 according to embodiments of the present disclosure will be elaborated in the following with reference toFigs. 1-4 and7 . - As illustrated in
Fig. 7 , the single coolingtype refrigerating device 2000 according to embodiments of the present disclosure includes thecompressor 100 according to the above-described embodiments of the present disclosure, theindoor heat exchanger 300, theoutdoor heat exchanger 400 and theflash evaporator 500. Theindoor heat exchanger 300 has a first end connected to thefirst suction pipe 11, and theoutdoor heat exchanger 400 has a first end connected to theexhaust pipe 10. - The
flash evaporator 500 is provided with a first interface e, a second interface f and a third interface g, and theflash evaporator 500 has an effect of gas-liquid separation. The first interface e and a second end of theindoor heat exchanger 300 is provided with afirst throttling element 600 connected in series therebetween, the second interface f and a second end of theoutdoor heat exchanger 400 is provided with asecond throttling element 700 connected in series therebetween, and the third interface g is connected to thesecond suction pipe 12. Both of thefirst throttling element 600 and thesecond throttling element 700 have effects of throttling and pressure reduction. Optionally, thefirst throttling element 600 is a capillary, an electronic expansion valve or a thermal expansion valve, and thesecond throttling element 700 is a capillary, an electronic expansion valve or a thermal expansion valve. - When the single cooling
type refrigerating device 2000 is cooling, the refrigerant discharged from thefirst cylinder 2 and thesecond cylinder 3 flows to theoutdoor heat exchanger 400 through theexhaust pipe 10 of thecompressor 100 for condensation and heat dissipation. The refrigerant discharged from theoutdoor heat exchanger 400 is throttled and reduced in pressure by thesecond throttling element 700 and discharged into theflash evaporator 500 through the second interface f for gas-liquid separation. The separated liquid refrigerant flows to thefirst throttling element 600 through the first interface e for throttling and pressure reduction. The refrigerant discharged from thefirst throttling element 600 is discharged to theindoor heat exchanger 300 for evaporation and heat absorption. The refrigerant discharged from theindoor heat exchanger 300 flows to thefirst cylinder 2 through thefirst suction pipe 11 for compression. The separated gaseous refrigerant is discharged to thesecond cylinder 3 through thesecond suction pipe 12 for compression. Consequently, the suction pressure of thefirst suction pipe 11 is lower than the suction pressure of thesecond suction pipe 12. - In the single cooling
type refrigerating device 2000 according to embodiments of the present disclosure, by providing thecompressor 100 according to the above-described embodiments of the present disclosure, the loss of the suction pressure of thesecond cylinder 3 can be reduced, the high indicated efficiency of the gas compression for thesecond cylinder 3 can be ensured, such that thecompressor 100 has better energy efficiency. - In the present disclosure, unless specified or limited otherwise, a structure in which a first feature is "on" or "below" a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween. Furthermore, a first feature "on," "above," or "on top of' a second feature may include an embodiment in which the first feature is right or obliquely "on," "above," or "on top of" the second feature, or just means that the first feature is at a height higher than that of the second feature. While a first feature "below," "under," or "on bottom of" a second feature may include an embodiment in which the first feature is right or obliquely "below," "under," or "on bottom of" the second feature, or just means that the first feature is at a height lower than that of the second feature.
- Although embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that the above embodiments are exemplary and cannot be construed to limit the present disclosure, and changes, variations, alternatives, and modifications can be made in the embodiments within the scope of the appended claims.
Claims (10)
- A compressor (100), comprising:a housing (1) provided with an exhaust pipe (10), a first suction pipe (11) and a second suction pipe (12);a first cylinder (2) disposed in the housing (1), the first cylinder (2) defining a first exhaust passage (20) and a first suction passage (21) communicated with the first suction pipe (11), a suction volume of the first cylinder (2) being denoted by V1, and a minimum flow area of the first suction passage (21) being denoted by S1; anda second cylinder (3) disposed in the housing (1), the second cylinder (3) defining a second exhaust passage (30) and a second suction passage (31) communicated with the second suction pipe (12), characterised by a suction volume of the second cylinder (3) being denoted by V2, and a minimum flow area of the second suction passage (31) being denoted by S2; a suction pressure of the second cylinder (3) being greater than a suction pressure of the first cylinder (2), and the first cylinder (2) and the second cylinder (3) satisfying: 1.2∗V2/V1≤S2/S1.
- The compressor (100) according to claim 1, wherein the first cylinder (2) and the second cylinder (3) further satisfy: 1.4∗V2/V1≤A2/A1, in which A1 refers to a minimum flow area of the first exhaust passage (20), and A2 refers to a minimum flow area of the second exhaust passage (30).
- The compressor (100) according to claim 2, wherein the first cylinder (2) and the second cylinder (3) further satisfy: A2/A1≤4∗V2/V1.
- The compressor (100) according to any one of claims 1 to 3, wherein the first cylinder (2) and the second cylinder (3) further satisfy: S2/S1≤5∗V2/V1.
- The compressor (100) according to any one of claims 1 to 4, wherein the second suction passage (31) is internally provided with a filter screen (9).
- A cooling and heating type refrigerating device (1000), comprising:a compressor (100) according to any one of claims 1 to 5;a reversing assembly (200) comprising a first valve port (a), a second valve port (b), a third valve port (c) and a fourth valve port (d), the first valve port (a) being communicated with one of the second valve port (b) and the third valve port (c), the fourth valve port (d) being communicated with the other of the second valve port (b) and the third valve port (c), the first valve port (a) being connected to the exhaust pipe (10), and the fourth valve port (d) being connected to the first suction pipe (11);an indoor heat exchanger (300) and an outdoor heat exchanger (400), the indoor heat exchanger (300) having a first end connected to the second valve port (b), and the outdoor heat exchanger (400) having a first end connected to the third valve port (c); anda flash evaporator (500) provided with a first interface (e), a second interface (f) and a third interface (g), a first throttling element (600) being connected in series between the first interface (e) and a second end of the indoor heat exchanger (300), a second throttling element being connected in series between the second interface (f) and a second end of the outdoor heat exchanger (400), and the third interface (g) being connected to the second suction pipe (12).
- The cooling and heating type refrigerating device (1000) according to claim 6, wherein the compressor (100) further comprises a reservoir (8), the reservoir (8) is provided with an inlet (m) and an outlet (n), the inlet (m) is connected to the fourth valve port (d), and the outlet (n) is connected to the first suction pipe (11).
- The cooling and heating type refrigerating device (1000) according to claim 6 or 7, wherein the reversing assembly (200) is a four-way valve.
- The cooling and heating type refrigerating device (1000) according to any one of claims 6 to 8, wherein the first throttling element (600) is a capillary, an electronic expansion valve or a thermal expansion valve, and the second throttling element is a capillary, an electronic expansion valve or a thermal expansion valve.
- A single cooling type refrigerating device (2000), comprising:a compressor (100) according to any one of claims 1 to 5;an indoor heat exchanger (300) and an outdoor heat exchanger (400), the indoor heat exchanger (300) having a first end connected to the first suction pipe (11), and the outdoor heat exchanger (400) having a first end connected to the exhaust pipe (10); anda flash evaporator (500) provided with a first interface (e), a second interface (f) and a third interface (g), a first throttling element (600) being connected in series between the first interface (e) and a second end of the indoor heat exchanger (300), a second throttling element being connected in series between the second interface (f) and a second end of the outdoor heat exchanger (400), and the third interface (g) being connected to the second suction pipe (12).
Applications Claiming Priority (1)
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PCT/CN2016/092117 WO2018018516A1 (en) | 2016-07-28 | 2016-07-28 | Compressor as well as cooling-heating refrigeration device and cooling-only refrigeration device having same |
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EP3492748A1 EP3492748A1 (en) | 2019-06-05 |
EP3492748A4 EP3492748A4 (en) | 2019-07-31 |
EP3492748B1 true EP3492748B1 (en) | 2020-09-16 |
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EP (1) | EP3492748B1 (en) |
JP (1) | JP6744062B2 (en) |
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CN1318760C (en) * | 2002-03-13 | 2007-05-30 | 三洋电机株式会社 | Multi-stage compressive rotary compressor and refrigerant return device |
JP3979407B2 (en) * | 2004-08-23 | 2007-09-19 | ダイキン工業株式会社 | Rotary compressor |
KR101381085B1 (en) * | 2007-11-13 | 2014-04-10 | 엘지전자 주식회사 | 2 stage rotary compressor |
CN101624985A (en) * | 2009-07-24 | 2010-01-13 | 广东美芝制冷设备有限公司 | Gas coolant injection rotary compressor |
KR20130081107A (en) * | 2012-01-06 | 2013-07-16 | 엘지전자 주식회사 | Hemetic compressor |
CN104110377B (en) * | 2013-04-17 | 2016-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of two-stage enthalpy increasing rotary compressor and air conditioner, heat pump water heater |
CN103742410B (en) * | 2013-12-05 | 2015-11-18 | 广东美芝制冷设备有限公司 | Rotary compressor and compression set, air conditioner |
CN106089712B (en) * | 2016-07-28 | 2018-12-28 | 广东美芝制冷设备有限公司 | Compressor and cold-warm type refrigerating plant, single cold type refrigerating plant with it |
CN205858680U (en) * | 2016-07-28 | 2017-01-04 | 广东美芝制冷设备有限公司 | Compressor and there is its cold-warm type refrigerating plant, single cold type refrigerating plant |
-
2016
- 2016-07-28 ES ES16910097T patent/ES2832534T3/en active Active
- 2016-07-28 JP JP2019526351A patent/JP6744062B2/en active Active
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JP6744062B2 (en) | 2020-08-19 |
ES2832534T3 (en) | 2021-06-10 |
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