CN107489617A - Rotary compressor and there is its air-conditioning system - Google Patents
Rotary compressor and there is its air-conditioning system Download PDFInfo
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- CN107489617A CN107489617A CN201710750649.9A CN201710750649A CN107489617A CN 107489617 A CN107489617 A CN 107489617A CN 201710750649 A CN201710750649 A CN 201710750649A CN 107489617 A CN107489617 A CN 107489617A
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- cylinder
- chamber
- compression
- single stage
- rotary compressor
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 170
- 238000007906 compression Methods 0.000 claims abstract description 170
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 44
- 230000008859 change Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F04C18/344—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 inner 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
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
- F04C28/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
-
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2240/00—Components
- F04C2240/10—Stators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of rotary compressor and there is its air-conditioning system, rotary compressor includes：Casing；Compression mechanism, compression mechanism is located in casing, compression mechanism includes single stage compress cylinder and two stages of compression cylinder, single stage compress cylinder has single stage compress chamber, single-stage air entry and single-stage exhaust outlet, two stages of compression cylinder includes first order compression cylinder and second level compression cylinder, first order compression cylinder has first order compression chamber and the first air entry, second level compression cylinder has second level compression chamber and first row gas port, the first air jet flow path that compression mechanism is communicated with the hybrid chamber of first order compression chamber and second level compression chamber and connected with hybrid chamber；Electric machine assembly, electric machine assembly are located in casing and suitable for driving compression mechanism work.Rotary compressor according to embodiments of the present invention can take into account ability and efficiency, service behaviour lifting simultaneously.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, to a kind of rotary compressor and has its air-conditioning system
System.
Background technology
With the decline of environment temperature, the specific volume of refrigerant increases, and the unit inspiratory capacity of rolling rotor compressor reduces,
The heating capacity of compressor is caused to decline to a great extent.And temperature is lower, the heat demand in room is bigger, the two-stage in correlation technique
Compressor can not fully meet the demand of heat.
In part occasion, such as one drag in more multiple on-line system (the outer multiple interior machines of machine), system loading is with interior machine
The difference of opening and closing amount and change, when full load, it is desirable to which compressing function meets the big requirement of ability, and in sub-load
When, it is desirable to compress function and efficiently run.Conventional compressor is constant volume, even if coordinating up-conversion technology, it is also difficult to
Take into account both demands simultaneously.
Easily there is refrigerating capacity mistake under small load condition, such as middle cryogenic conditions in currently common cooling and warming EGR
It is surplus, so as to cause energy waste, while in high load working condition condition, under being heated such as ultralow temperature, easily there is heating capacity deficiency
Phenomenon, and efficiency is very low.Moreover, requiring that system can realize quick cooling and warming in user, it can not quickly increase refrigerant stream
Amount.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes a kind of rotation
Rotary compressor, the rotary compressor can take into account ability and efficiency simultaneously.
The invention also provides a kind of air-conditioning system with above-mentioned rotary compressor.
Rotary compressor according to embodiments of the present invention, including：Casing；Compression mechanism, the compression mechanism are located at institute
State in casing, the compression mechanism includes single stage compress cylinder and two stages of compression cylinder, and the single stage compress cylinder has single-stage
Compression chamber, single-stage air entry and single-stage exhaust outlet, the two stages of compression cylinder includes first order compression cylinder and the second level is compressed
Cylinder, the first order compression cylinder have a first order compression chamber and the first air entry, and the second level compression cylinder has the
Two-stage compression chamber and first row gas port, the compression mechanism are communicated with the first order compression chamber and the second level compression chamber
Hybrid chamber and the first air jet flow path for being connected with the hybrid chamber；Electric machine assembly, the electric machine assembly are located in the casing
And suitable for driving the compression mechanism work.
Rotary compressor according to embodiments of the present invention can take into account ability and efficiency, service behaviour lifting simultaneously.
In addition, rotary compressor according to the above embodiment of the present invention can also have technical characteristic additional as follows：
According to some embodiments of the present invention, the single stage compress chamber, first order compression chamber and the second level compression chamber
Along the axial arbitrary arrangement of the compression mechanism.
Alternatively, the discharge chamber connected with the first row gas port is additionally provided with the compression mechanism.
Further, the discharge chamber is compressed by being located at the single stage compress chamber, first order compression chamber and the second level
The dividing plate of two stackings between any two in chamber limits.
According to some embodiments of the present invention, the hybrid chamber by be located at the single stage compress chamber, first order compression chamber and
The dividing plate of two stackings between any two in the second level compression chamber limits, or, the hybrid chamber is by described
The bearing of compression mechanism and the cover plate being located on the bearing limit.
Alternatively, the single stage compress cylinder is changeable between cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition.
Further, the single stage compress cylinder is by controlling the size of pressure of inspiration(Pi) to realize cutting-out cylinder operating condition and releasing
The switching of cutting-out cylinder operating condition.
Rotary compressor according to embodiments of the present invention also includes：Second air jet flow path, second air jet flow path with
The single stage compress chamber connection.
Further, second air jet flow path, which is provided with, is used to control gas unidirectional to be delivered to the single stage compress chamber
Check valve, the check valve are located at the internal or external of the compression mechanism.
Alternatively, provided with the slide plate back pressure cavity that pressure is variable in the single stage compress cylinder, with the back of the body by controlling slide plate
Pressure size realizes switching of the single stage compress cylinder in cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition.
Rotary compressor according to embodiments of the present invention also includes：Second air jet flow path, second air jet flow path with
The single stage compress chamber connection, second air jet flow path are provided with the magnetic valve for controlling its break-make.
Alternatively, the first puff prot of first air jet flow path is located at the first order compression cylinder, second level compression
On cylinder, bearing, dividing plate or cover plate.
Alternatively, the second puff prot of second air jet flow path is located at single stage compress cylinder, bearing, dividing plate or cover plate
On.
In some embodiments of the invention, first air jet flow path and second air jet flow path are with being located at the machine
Same outside jet circuit communication outside shell.
Alternatively, the slide plate of the single stage compress intracavitary is configured to its position and entered by adjusting the pressure of slide plate back pressure cavity
Row control.
According to some embodiments of the present invention, the compression mechanism is provided with to be acted on the slide plate of the single stage compress intracavitary
Magnetic element, with when the single stage compress cylinder is in cutting-out cylinder operating condition to the slide plate brake.
Alternatively, the work discharge capacity of the single stage compress cylinder is V1, and the work discharge capacity of first order compression cylinder is V3, its
In, V1/V3=0.35-1.8.
Alternatively, the work discharge capacity of the second level compression cylinder is V2, and the work discharge capacity of first order compression cylinder is V3,
Wherein, V2/V3=0.55-0.95.
Air-conditioning system according to embodiments of the present invention, including rotary compressor according to embodiments of the present invention.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of rotary compressor according to embodiments of the present invention；
Fig. 2 is the sectional view of the compression mechanism of rotary compressor according to an embodiment of the invention；
Fig. 3 is another sectional view of the compression mechanism of rotary compressor according to an embodiment of the invention；
Fig. 4 is the sectional view of the compression mechanism of rotary compressor in accordance with another embodiment of the present invention；
Fig. 5 is the position view of the second puff prot of rotary compressor according to embodiments of the present invention；
Fig. 6 is the installation site and structural representation of the check valve of rotary compressor according to embodiments of the present invention；
Fig. 7 is the COP of rotary compressor according to embodiments of the present invention with V2/V3 variation diagram；
Fig. 8 is the COP of rotary compressor according to embodiments of the present invention with V1/V3 variation diagram；
Fig. 9 is the structural representation of air-conditioning system according to an embodiment of the invention；
Figure 10 is the structural representation of air-conditioning system in accordance with another embodiment of the present invention；
Figure 11 is the structural representation according to the air-conditioning system of further embodiment of the present invention.
Reference：
Air-conditioning system 1000；
Rotary compressor 100；Condenser 200；Flash vessel 300；Evaporator 400；First throttle device 500；Second section
Flow device 600；Four-way valve 700；Reservoir 800；
Casing 10；
Compression mechanism 20；
Single stage compress cylinder 21；Single stage compress chamber 210；Single-stage air entry 211；Second air jet flow path 212；Second jet is led to
Road 213；Second puff prot 2131；Single-stage suction line 214；Slide plate back pressure cavity 215；Back pressure cavity pipeline 217；
Two stages of compression cylinder 22；First order compression cylinder 22a；Second level compression cylinder 22b；First order compression chamber 220；The
One air entry 221；Second level compression chamber 230；Hybrid chamber 240；First air jet flow path 241；First jet channel 2411；Discharge chamber
250；
Bent axle 23；Piston 24；Slide plate 25；Dividing plate 26；Bearing 27；Cover plate 28；Flexible member 291；Magnetic element 292；
Electric machine assembly 30；Stator 31；Rotor 32；
Triple valve 40；Check valve 41；Limiter 42；Screw 43；Magnetic valve 44；
Outside jet loop 50.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention, ability
The those of ordinary skill in domain can carry out a variety of changes in the case where not departing from the principle and objective of the present invention to these embodiments
Change, change, replacing and modification, the scope of the present invention are limited by claim and its equivalent.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer ", " axial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".
Below with reference to the accompanying drawings rotary compressor 100 according to embodiments of the present invention is described.
Referring to figs. 1 to shown in Fig. 6, rotary compressor 100 according to embodiments of the present invention can include：Casing 10, pressure
Contracting mechanism 20 and electric machine assembly 30.
Specifically, compression mechanism 20 is located in casing 10, and compression mechanism 20 includes single stage compress cylinder 21 and two-stage pressure
Contracting cylinder 22, single stage compress cylinder 21 have single stage compress chamber 210, single-stage air entry 211 and single-stage exhaust outlet, single-stage air entry
211 and single-stage exhaust outlet connected with single stage compress chamber 210.Single stage compress cylinder 21 can by the air-breathing of single-stage air entry 211,
Then after being compressed in single stage compress chamber 210, the inner space of casing 10 is escaped and enter from single-stage exhaust outlet.
Two stages of compression cylinder 22 includes first order compression cylinder 22a and second level compression cylinder 22b, first order compression cylinder
22a has the air entry 221 of first order compression chamber 220 and first, and second level compression cylinder 22b has the He of second level compression chamber 230
First row gas port, two stages of compression cylinder 22 are additionally provided with the air jet flow path 241 of hybrid chamber 240 and first, and hybrid chamber 240 connects the first order
Compression chamber 220 and second level compression chamber 230, the first air jet flow path 241 connect with hybrid chamber 240.Thus, the first air entry 221,
First order compression chamber 220, hybrid chamber 240, second level compression chamber 230, first row gas port can be sequentially communicated.Gas can pass through
The air-breathing of first air entry 221, hybrid chamber 240 is flowed to after being compressed in first order compression chamber 220, at the same time, hybrid chamber 240
Second level compression chamber can also be flowed to by the air inlet of the first air jet flow path 241 after then being mixed with gas compressed
230, the inner space of casing 10 is escaped and enter after being re-compressed in second level compression chamber 230 from first row gas port.
In actual use, can according to circumstances control into the first air entry 221, single-stage air entry 211 and first
The gas pressure of air jet flow path 241, for example, single stage compress cylinder 21 can suck low-pressure gas, low pressure from single-stage air entry 211
Gas forms gases at high pressure after being compressed in single stage compress chamber 210, then can be discharged from single-stage exhaust outlet in casing 10
Portion；Two stages of compression cylinder 22 can suck low-pressure gas from the first air entry 221, and low-pressure gas is in first order compression chamber 220
Compressed, then drain into hybrid chamber 240, meanwhile, calmed the anger in being passed through by the first air jet flow path 241 into hybrid chamber 240
Body, medium pressure gas after gas mixing that first order compression chamber 220 compresses with being entered in second level compression chamber 230 by compressed shape
Into gases at high pressure, then it is discharged to from first row gas port in the inner space of casing 10.Wherein, low pressure, the tool of medium and high pressure
Body pressure value can specifically be set according to the rotary compressor of reality.
Thus, single stage compress cylinder 21 can realize single stage compress to gas, and two stages of compression cylinder 22 can be real to gas
Existing two stages of compression.Under the conditions of such as the low system of ultralow temperature, single stage compress cylinder 21 and two stages of compression cylinder 22 can works simultaneously
Make, can increase ultralow temperature it is low processed when compressor displacement, and two stages of compression on this condition can have it is suitable big
The big pressure difference of pressure ratio, while discharge capacity increase can be taken into account, and optimize kind of refrigeration cycle, reach increase ability while take into account improving energy efficiency
Effect.
Electric machine assembly 30 can be arranged in casing 10, and compression mechanism 20 can be driven to work.Electric machine assembly 30 can
It is connected with the bent axle 23 including stator 31 and rotor 32, compression mechanism 20 with rotor 32, single stage compress chamber 210, first order compression
Piston 24 and slide plate 25 are respectively equipped with chamber 220 and second level compression chamber 230, piston 24 is set on bent axle 23 with bent axle 23
Rotate, under the driving of rotor 32, bent axle 23 can be rotated in corresponding compression chamber with piston 24 and coordinated with slide plate 25,
Realize the compression to gas.Electric machine assembly 30 and with bent axle 23 and the dependency structure of the grade of piston 24 for those skilled in the art
For be knowable, be no longer described in more detail herein.
Rotary compressor 100 according to embodiments of the present invention, by setting single stage compress cylinder 21 and two stages of compression gas
Cylinder 22, and the hybrid chamber 240 for connecting first order compression chamber 220 and second level compression chamber 230 is set in two stages of compression cylinder 22,
It can realize while take into account the service ability of compressor and the effect of efficiency, optimize kind of refrigeration cycle, the ultralow temperature that is particularly suitable for use in is low
The working condition of system.
Alternatively, according to some embodiments of the present invention, single stage compress chamber 210, first order compression chamber 220 and second level pressure
Contracting chamber 230 can be along the axial arbitrary arrangement of casing 10.In other words, rotary compressor 100 has three along compression mechanism 20
The compression chamber axially arranged, three compression chambers respectively with single stage compress chamber 210, first order compression chamber 220 and the second level compress
Chamber 230 corresponds, and any one in three compression chambers could be arranged to single stage compress chamber 210, the and of first order compression chamber 220
Any one in second level compression chamber 230.Those skilled in the art can flexibly set three compression chambers according to the actual requirements
Arrangement.
For example, in the embodiment shown in Fig. 1 and Fig. 2, rotary compressor 100 has upside compression chamber, intermediate compression
Chamber and downside compression chamber, upside compression chamber can be single stage compress chamber 210, and downside compression chamber can be first order compression chamber 220,
Intermediate compression chamber can be second level compression chamber 230.Thus, first order compression chamber 220 and second level compression chamber 230 can be each other
It is neighbouring, set and be more convenient, gas flow capability is more preferable.
According to some embodiments of the present invention, discharge chamber 250, discharge chamber 250 and are also provided with compression mechanism 20
One exhaust outlet connects, as shown in Figures 2 and 3.Thus, the gases at high pressure by two stages of compression can be entered by first row gas port
Into discharge chamber 250, then it is then exhausted from the inner space of casing 10, exhaust performance lifting.
In an embodiment of the present invention, the set location for discharge chamber 250 is not done specifically limited, alternatively, such as Fig. 1 extremely
Shown in Fig. 4, in some embodiments of the invention, discharge chamber 250 can be by being located at single stage compress chamber 210, first order compression chamber
220 and second level compression chamber 230 in any two between two stacking dividing plates 26 limit.That is, single-stage pressure
Two dividing plates 26 can be set between any two in contracting chamber 210, first order compression chamber 220 and second level compression chamber 230, two
Individual dividing plate 26 is stacked, and discharge chamber 250 can be limited by the dividing plate 26 of the two stackings, set it is more convenient, and can be with
The adjustment of discharge chamber 250 is realized by replacing dividing plate 26.
For example, in the embodiment shown in Fig. 2 and Fig. 3, can between first order compression chamber 220 and second level compression chamber 230
To set a dividing plate 26, the dividing plate 26 of two stackings can be set between single stage compress chamber 210 and second level compression chamber 230,
Discharge chamber 250 can be limited by the two dividing plates 26.
In an embodiment of the present invention, multiple opening positions can be flexibly arranged on according to the difference of structure, hybrid chamber 240,
The present invention does not do specifically limited to this.For example, according to some specific examples of the present invention, hybrid chamber 240 can be by being located at single-stage
The dividing plate of the stacking of two between any two in compression chamber 210, first order compression chamber 220 and second level compression chamber 230
26 limit.For another example hybrid chamber 240 can be limited by the bearing 27 of compression mechanism 20 with the cover plate 28 being located on bearing 27
Go out, wherein, bearing 27 can be upper bearing (metal), or lower bearing.As shown in Figures 2 and 3, hybrid chamber 240 by positioned at positioned at
The cover plate 28 that the bearing 27 and lid of downside are located at the lower section of bearing 27 limits.Wherein, two dividing plates are arranged on for hybrid chamber 240
For structure between 26, high-pressure chamber can be set to be used as discharge chamber on the bearing 27 of downside, as shown in Figure 4.
Alternatively, in the embodiment shown in fig. 4, cover plate 28 can also remove, and can directly set and disappear on the bearing 27 of downside
Sound device.
Alternatively, the first jet channel 2411 can be set in two stages of compression cylinder 22, and the first air jet flow path 241 is at least
A part is formed by the first jet channel 2411, and the first puff prot of the first air jet flow path 241 can be located at first order compressed gas
, can be according to the concrete structure of compression mechanism 20 on cylinder 22a, second level compression cylinder 22b, bearing 27, dividing plate 26 or cover plate 28
The position of first puff prot of the first air jet flow path 241 is flexibly set, and realization sets external structure, convenient installation for greater flexibility.
In some embodiments of the invention, single stage compress cylinder 21 can be in cutting-out cylinder operating condition and releasing cutting-out cylinder operating
It is changeable between state.Here, cutting-out cylinder operating condition refers to the state that gas is not compressed in single stage compress chamber 210, solution
Except cutting-out cylinder operating condition refers to, when single stage compress 21 normal air inlet of cylinder, gas can be pressed in single stage compress chamber 210
Contracting.Thus, single stage compress cylinder 21 can be formed as transfiguration cylinder, you can with work, can not also work.
So, under lighter operating mode (when such as pressure ratio pressure difference is relatively low), because the demand of cold or heat is no so big,
Only it can be compressed with two stages of compression cylinder 22.Single stage compress cylinder 21 stops compression, avoids high frequent from shutting down
Or operated under very low frequencies, optimize kind of refrigeration cycle.Under the operating mode of heavy load, single stage compress cylinder 21 and two stages of compression cylinder 22
It can together work, the demand of huge discharge can be realized, further increase the ability of compressor, reduce the operation frequency of compressor
Rate, be advantageous to further improve the efficiency of compressor.
In an embodiment of the present invention, the change capacitance type for single stage compress cylinder 21 is not done specifically limited.Alternatively, exist
In some specific embodiments of the present invention, single stage compress cylinder 21 can realize that cutting-out cylinder is transported by controlling the size of pressure of inspiration(Pi)
Turn state and release the switching of cutting-out cylinder operating condition, handover operation is convenient and reliable.For example, in some specific examples of the present invention
In, the pressure of inspiration(Pi) of single stage compress cylinder 21 can switch between high pressure and low pressure, so as to realize cutting-out cylinder and release cutting-out cylinder two
The switching of kind mode of operation.Specifically, when pressure of inspiration(Pi) is high pressure, the Suck and exhaust pressure of single stage compress cylinder 21 is height
Pressure, single stage compress cylinder 21 do not work, and realize cutting-out cylinder；When pressure of inspiration(Pi) is low pressure, single stage compress cylinder 21 can normal work
Make, release cutting-out cylinder.
Alternatively, triple valve 40, reference can be set in the single-stage suction line 214 being connected with single-stage air entry 211
Shown in Fig. 1 to Fig. 4, Figure 10, three mouths of triple valve 40 machine with single-stage air entry 211, reservoir outlet and compressor respectively
Shell exhaust outlet connects.Thus, it is possible to low-pressure gas or height are passed through into single-stage air entry 211 by controlling triple valve 40 to realize
Calm the anger body, air inlet is easy to control.
In other embodiments of the present invention, the change capacitance type of single stage compress cylinder 21 switches into slide plate back pressure.Specifically
Ground, slide plate back pressure cavity 215 can be provided with single stage compress cylinder 21, as shown in figure 3, the pressure of slide plate back pressure cavity 215 is variable, can
With by controlling the magnitude of back pressure of slide plate 25 to realize single stage compress cylinder 21 in cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition
Switching, handover operation is convenient and reliable.
, can on the back pressure cavity pipeline 217 that is connected with slide plate back pressure cavity 215 for example, in the specific embodiment shown in Figure 11
To set triple valve 40, three mouths of triple valve 40 connect with slide plate back pressure cavity 215, reservoir import and casing exhaust outlet respectively
It is logical.Thus, it is possible to be passed through low-pressure gas or gases at high pressure into single-stage air entry 211 by controlling triple valve 40 to realize, enter
Gas is easy to control.When ventilate low-pressure gas when, the backside pressure and head pressure of slide plate 25 are roughly the same, and slide plate 25 does not work,
Single stage compress cylinder 21 is in cutting-out cylinder state, and when being passed through gases at high pressure, slide plate 25 is in normal operating conditions, single stage compress gas
Cylinder 21 releases cutting-out cylinder.
Alternatively, rotary compressor 100 may also include the second air jet flow path 212, such as Fig. 5 and Fig. 6, Figure 10 and Figure 11 institutes
Show, the second air jet flow path 212 connects with single stage compress chamber 210.Thus, single stage compress cylinder 21 can be with jet, can be further
Optimize the kind of refrigeration cycle of single stage compress, improve the ability of single stage compress, while improve the low-temperature heating capacity of single stage compress.Need
Bright, in an embodiment of the present invention, single stage compress cylinder 21 could be arranged to a transfiguration without jet, it can also be provided that
Jet without transfiguration, may be arranged as both can with transfiguration can also jet, the advantages of to gather transfiguration and jet simultaneously.
Second jet channel 213 can be set in single stage compress cylinder 21, as shown in figure 5, the second jet channel 213 can be with
A part as the second air jet flow path 212.Wherein, the second puff prot 2131 of the second air jet flow path 212 can flexibly be set
On single stage compress cylinder 21, bearing 27, dividing plate 26 or cover plate 28, mutually fitted with the other structures preferably with compression mechanism 20
Match somebody with somebody.
Further, according to some embodiments of the present invention, check valve 41 can also be set on the second air jet flow path 212,
Shown in reference picture 6 and Figure 10, check valve 41 can control gas unidirectional to be delivered to single stage compress chamber 210, that is to say, that the second spray
Gas on air-flow road 212 can be flowed into single stage compress chamber 210 by check valve 41, and the gas in single stage compress chamber 210
Body then can not outwards be flowed by check valve 41.For can be with the single stage compress cylinder 21 of transfiguration, during cutting-out cylinder, single-stage
The pressure of compression chamber 210 is high pressure, and the setting of check valve 41 causes gases at high pressure will not be from single stage compress chamber 210 to exteenal reflux.
And when single stage compress cylinder 21 is in normal work, the second air jet flow path 212 can be with proper function, and medium pressure gas can be with
Single stage compress chamber 210 is sprayed into by the second air jet flow path 212.
Alternatively, check valve 41 can be arranged on compression mechanism 20 either internally or externally, can be according to practical structures spirit
It is living to set.As shown in fig. 6, check valve 41 can be arranged on dividing plate 26, further, check valve 41 is formed as valve structure simultaneously
And be fixed with limiter 42 by the grade threaded fastener of screw 43, limiter 42 can limit the work of the lift of check valve 41
With avoiding check valve 41 from acting and excessive cause to be broken.
In some alternative embodiments of the present invention, the change capacitance type of single stage compress cylinder 21 switches into slide plate back pressure, the
Magnetic valve 44 can be set on two air jet flow paths 212, as shown in figure 11, magnetic valve 44 can control the second air jet flow path 212
Break-make.Thus, the reverse cut-off of the second air jet flow path 212 can also be realized, and when single stage compress 21 cutting-out cylinder of cylinder, electromagnetism
Valve 44 can make the second air jet flow path 212 be in the state disconnected, can avoid the two-way flow of gas, and control performance is more preferable.
Reference picture 9 is to shown in Figure 11, and according to some embodiments of the present invention, rotary compressor 100 can also include：If
Outside jet loop 50 outside casing 10, the second air jet flow path 212 and the first air jet flow path 241 spray with same outside
Air circuit 50 connects.A loop is shared in the outside of casing 10 thus, it is possible to realize, sets and divides in the inside of compression mechanism 20
It branch, can so simplify external structure, convenient installation, while some costs can be saved.
Alternatively, the slide plate 25 in single stage compress chamber 210 can be constructed its position by adjusting slide plate back pressure cavity 215
Pressure is controlled.That is, the slide plate 25 in single stage compress chamber 210 no longer carries out position control by flexible member 291,
And the pressure by adjusting gas is realized.Thus, element can be not only saved, reduces compressor production cost, and in list
During level 21 release of compression cylinder, without the effect of the flexible members such as spring 291, slide plate 25 would not prop up piston 24, can keep away
Exempt from the head of slide plate 25 and the friction of piston 24, abrasion and power can be reduced.For example, as shown in figure 3, on single stage compress cylinder 21
The suction gas port connected with slide plate back pressure cavity 215 can be set, can be slided by the outlet situation control of entering of control and suck gas port
The pressure size of piece back pressure cavity 215, it is easy to control and relatively reliable to realize the adjustment of the position of slide plate 25.
As shown in figure 3, the slide plate 25 in first order compression chamber 220 and second level compression chamber 230 still can use elasticity
Element 291 carries out position control, and it is more flexible that slide plate 25 connects reliable and adjusting position.
According to some embodiments of the present invention, magnetic element 292 can be provided with compression mechanism 20, as shown in figure 3, magnetic
Element 292 can act on the slide plate 25 in single stage compress chamber 210, with when single stage compress cylinder 21 is in cutting-out cylinder operating condition
Slide plate 25 is braked.Thus, it is possible to slide plate 25 is set more stably to be maintained in single stage compress 21 cutting-out cylinder of cylinder in vane slot, no
Motion is produced because air pressure inside fluctuates, causes slide plate 25 to produce collision with piston 24 or cylinder, causes damage parts, improve
The reliability of rotary compressor 100.
Assuming that the work discharge capacity of single stage compress cylinder 21 is V1, second level compression cylinder 22b work discharge capacity is V2, first
Level compression cylinder 22a work discharge capacity is V3, as shown in fig. 7, to keep higher efficiency, can make V2/V3=0.55-
The span of 0.95, i.e. V2 and V3 ratio is 0.55-0.95 (including two endpoint values).For example, in some of the invention
In specific example, V2/V3 value is respectively 0.60,0.65,0.70,0.75,0.80,0.85 etc..As shown in figure 8, to keep
Higher efficiency, the span that can make V1/V3=0.35-1.8, i.e. V1 and V3 ratio are 0.35-1.8 (including two
Endpoint value).For example, in some specific examples of the present invention, V1/V3 value is respectively 0.55,0.75,0.95,1.15,
1.35th, 1.55 etc..
For different areas and use condition, V2/V3 and the different of V1/V3 bring different efficiencies in the future, are evaporating
With the temperature difference of condensation it is big when (such as heat pump working condition), V2/V3 can be arranged to smaller value；When both temperature difference are smaller, Ke Yiqu
Higher value, and V1/V3 can improve compression function then from V2/V3 on the contrary, be so directed to different regions and different use conditions
Effect.
As shown in Figures 9 to 11, air-conditioning system 1000 according to embodiments of the present invention is included according to embodiments of the present invention
Rotary compressor 100.Because rotary compressor according to embodiments of the present invention has above-mentioned beneficial technique effect, therefore
Air-conditioning system 1000 according to embodiments of the present invention can take into account ability and efficiency, especially in the case of the low system of low temperature.
To shown in Figure 11, air-conditioning system 1000 can include reference picture 9：Condenser 200, flash vessel 300, evaporator 400,
First throttle device 500, second throttling device 600, four-way valve 700 and reservoir 800 etc., these parts can be with rotary pressures
Contracting machine 100, which is connected, forms compressibility loop, and its attachment structure etc. will be understood by those skilled in the art,
This is not described in detail.
Air-conditioning system 1000 according to embodiments of the present invention can apply on refrigerating plant, air-conditioning system 1000 other
Form and operation is knowable for the person of ordinary skill of the art, be not described in detail herein.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In the description of this specification, reference term " embodiment ", " example ", " specific example " or " some examples " etc.
Description mean that combining specific features, structure, material or the feature that the embodiment or example describe is contained in the present invention extremely
In few one embodiment or example.In this manual, identical reality is not necessarily referring to the schematic representation of above-mentioned term
Apply example or example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments
Or in example do not interfere, it is reconcilable in the case of can be combined with each other in an appropriate manner.
Claims (19)
- A kind of 1. rotary compressor, it is characterised in that including：Casing；Compression mechanism, the compression mechanism are located in the casing, and the compression mechanism includes single stage compress cylinder and two-stage pressure Contracting cylinder, the single stage compress cylinder have single stage compress chamber, single-stage air entry and single-stage exhaust outlet, the two stages of compression cylinder Including first order compression cylinder and second level compression cylinder, there is the first order compression cylinder first order compression chamber and first to inhale Gas port, the second level compression cylinder have second level compression chamber and first row gas port, and the compression mechanism is communicated with described The hybrid chamber of first order compression chamber and the second level compression chamber and the first air jet flow path connected with the hybrid chamber；Electric machine assembly, the electric machine assembly are located in the casing and suitable for driving the compression mechanism work.
- 2. rotary compressor according to claim 1, it is characterised in that the single stage compress chamber, first order compression chamber With axial arbitrary arrangement of the second level compression chamber along the compression mechanism.
- 3. rotary compressor according to claim 1, it is characterised in that be additionally provided with the compression mechanism and described The discharge chamber of one exhaust outlet connection.
- 4. rotary compressor according to claim 3, it is characterised in that the discharge chamber is by being located at the single stage compress The dividing plate of two stackings between any two in chamber, first order compression chamber and the second level compression chamber limits.
- 5. rotary compressor according to claim 1, it is characterised in that the hybrid chamber is by being located at the single stage compress The dividing plate of two stackings between any two in chamber, first order compression chamber and the second level compression chamber limits, or, The hybrid chamber is limited by the bearing of the compression mechanism with the cover plate being located on the bearing.
- 6. rotary compressor according to claim 1, it is characterised in that the single stage compress cylinder operates shape in cutting-out cylinder It is changeable between state and releasing cutting-out cylinder operating condition.
- 7. rotary compressor according to claim 6, it is characterised in that the single stage compress cylinder is by controlling air-breathing The size of pressure realizes cutting-out cylinder operating condition and releases the switching of cutting-out cylinder operating condition.
- 8. according to the rotary compressor described in claim 1,6 or 7, it is characterised in that also include：Second air jet flow path, second air jet flow path connect with the single stage compress chamber.
- 9. rotary compressor according to claim 8, it is characterised in that second air jet flow path, which is provided with, to be used to control Gas unidirectional processed is delivered to the check valve of the single stage compress chamber, and the check valve is located at the inside or outer of the compression mechanism Portion.
- 10. rotary compressor according to claim 6, it is characterised in that be provided with pressure in the single stage compress cylinder Variable slide plate back pressure cavity, with by control the magnitude of back pressure of slide plate realize the single stage compress cylinder in cutting-out cylinder operating condition and Release the switching of cutting-out cylinder operating condition.
- 11. the rotary compressor according to claim 7 or 10, it is characterised in that also include：Second air jet flow path, second air jet flow path are connected with the single stage compress chamber, and second air jet flow path is provided with Control the magnetic valve of its break-make.
- 12. rotary compressor according to claim 1, it is characterised in that the first jet of first air jet flow path Mouth is located on the first order compression cylinder, second level compression cylinder, bearing, dividing plate or cover plate.
- 13. rotary compressor according to claim 8, it is characterised in that the second jet of second air jet flow path Mouth is located on single stage compress cylinder, bearing, dividing plate or cover plate.
- 14. rotary compressor according to claim 8, it is characterised in that first air jet flow path and described second Air jet flow path and the same outside jet circuit communication outside the casing.
- 15. rotary compressor according to claim 6, it is characterised in that the slide plate of the single stage compress intracavitary is by structure Its position is caused to be controlled by adjusting the pressure of slide plate back pressure cavity.
- 16. rotary compressor according to claim 6, it is characterised in that the compression mechanism is provided with and the list Level compression chamber in slide plate effect magnetic element, with when the single stage compress cylinder is in cutting-out cylinder operating condition to the cunning Piece is braked.
- 17. rotary compressor according to claim 6, it is characterised in that the work discharge capacity of the single stage compress cylinder For V1, the work discharge capacity of first order compression cylinder is V3, wherein, V1/V3=0.35-1.8.
- 18. rotary compressor according to claim 6, it is characterised in that the work row of the second level compression cylinder To measure as V2, the work discharge capacity of first order compression cylinder is V3, wherein, V2/V3=0.55-0.95.
- 19. a kind of air-conditioning system, it is characterised in that including the rotary compression according to any one of claim 1-18 Machine.
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| CN201710750649.9A CN107489617B (en) | 2017-08-28 | 2017-08-28 | Rotary compressor and air conditioning system with same |
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| CN201710750649.9A CN107489617B (en) | 2017-08-28 | 2017-08-28 | Rotary compressor and air conditioning system with same |
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| US5050233A (en) * | 1987-08-31 | 1991-09-17 | Kabushiki Kaisha Toshiba | Rotary compressor |
| CN1779262A (en) * | 2004-11-26 | 2006-05-31 | 日立家用电器公司 | Double-cylinder rotary compressor and air conditioner therewith |
| CN101460789A (en) * | 2006-06-01 | 2009-06-17 | 开利公司 | Multi-stage compressor unit for a refrigeration system |
| CN104454528A (en) * | 2014-12-03 | 2015-03-25 | 广东美芝制冷设备有限公司 | Double-cylinder rotary compressor and refrigerating device with same |
| CN105545742A (en) * | 2016-02-24 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Multi-cylinder two-stage variable-capacity compressor system and control method of switching of running modes thereof |
| CN207111422U (en) * | 2017-08-28 | 2018-03-16 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its air-conditioning system |
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2017
- 2017-08-28 CN CN201710750649.9A patent/CN107489617B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5050233A (en) * | 1987-08-31 | 1991-09-17 | Kabushiki Kaisha Toshiba | Rotary compressor |
| CN1779262A (en) * | 2004-11-26 | 2006-05-31 | 日立家用电器公司 | Double-cylinder rotary compressor and air conditioner therewith |
| CN101460789A (en) * | 2006-06-01 | 2009-06-17 | 开利公司 | Multi-stage compressor unit for a refrigeration system |
| CN104454528A (en) * | 2014-12-03 | 2015-03-25 | 广东美芝制冷设备有限公司 | Double-cylinder rotary compressor and refrigerating device with same |
| CN105545742A (en) * | 2016-02-24 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Multi-cylinder two-stage variable-capacity compressor system and control method of switching of running modes thereof |
| CN207111422U (en) * | 2017-08-28 | 2018-03-16 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its air-conditioning system |
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| CN107489617B (en) | 2024-01-05 |
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