CN207297359U - 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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- CN207297359U CN207297359U CN201721088621.5U CN201721088621U CN207297359U CN 207297359 U CN207297359 U CN 207297359U CN 201721088621 U CN201721088621 U CN 201721088621U CN 207297359 U CN207297359 U CN 207297359U
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Abstract
The utility model 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 equipped with the mixing chamber of connection first order compression chamber and second level compression chamber and is connected with mixing chamber, second level compression cylinder is changeable between cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition；Electric machine assembly, electric machine assembly are located in casing and suitable for driving compression mechanism work.Ability and efficiency, working performance lifting can be taken into account at the same time according to the rotary compressor of the utility model embodiment.
Description
Technical field
Air-conditioning technical field is the utility model is related to, more particularly, to a kind of rotary compressor and there is its sky
Adjusting 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 multi-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 at the same time.
Easily there is refrigerating capacity mistake under small load condition, such as middle cryogenic conditions in currently common cooling and warming circulator
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 system to realize quick cooling and warming in user, it can not quickly increase refrigerant stream
Amount.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model carries
Go out a kind of rotary compressor, the rotary compressor can take into account ability and efficiency at the same time.
The utility model also proposed a kind of air-conditioning system with above-mentioned rotary compressor.
According to the rotary compressor of the utility model embodiment, including：Casing；Compression mechanism, the compression mechanism are set
In the casing, the compression mechanism includes single stage compress cylinder and two stages of compression cylinder, and the single stage compress cylinder has
Single stage compress chamber, single-stage air entry and single-stage exhaust outlet, the two stages of compression cylinder include first order compression cylinder and the second level
Compression cylinder, the first order compression cylinder have first order compression chamber and the first air entry, the second level compression cylinder tool
There are second level compression chamber and first row gas port, the compression mechanism, which is equipped with, connects the first order compression chamber and second level pressure
The mixing chamber of contracting chamber and the first air jet flow path connected with the mixing chamber, the second level compression cylinder is in cutting-out cylinder operating condition
It is changeable between releasing cutting-out cylinder operating condition；Electric machine assembly, the electric machine assembly are located in the casing and suitable for driving institutes
State compression mechanism work.
Ability and efficiency can be taken into account at the same time according to the rotary compressor of the utility model embodiment, working performance carries
Rise.
In addition, there can also be technology spy additional as follows according to the rotary compressor of the utility model above-described embodiment
Sign：
Some embodiments according to the present utility model, the single stage compress chamber, first order compression chamber and second level pressure
Axial arbitrary arrangement of the contracting chamber along 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 partition plate of two stackings between any two in chamber limits.
Some embodiments according to the present utility model, the mixing chamber is by being located at the single stage compress chamber, the first order is compressed
The partition plates of two between any two in chamber and second level compression chamber stackings limit, alternatively, the mixing chamber by
The bearing of the compression mechanism and the cover board being located on the bearing limit.
According to the rotary compressor of the utility model embodiment, further include：Second air jet flow path, second gaseous blast
Road is connected with the single stage compress chamber.
Alternatively, the second level compression cylinder is by controlling the pressure size of the first air jet flow path to realize that cutting-out cylinder operates shape
State and the switching for releasing cutting-out cylinder operating condition.
In some embodiments of the utility model, equipped with the slide plate back pressure that pressure is variable in the second level compression cylinder
Chamber, with by controlling the magnitude of back pressure of slide plate to realize the second compression cylinder in cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition
Switching, first air jet flow path are equipped with the check valve for being used for controlling gas unidirectional to be delivered to the mixing chamber.
According to the rotary compressor of the utility model embodiment, further include：Four-way valve, two outputs of the four-way valve
End connects the slide plate back pressure cavity of the second level compression cylinder and the mixing chamber, two input terminals point of the four-way valve respectively
The gas of different pressures is not suitably incorporated, with respectively to the slide plate back pressure cavity and the gas of mixing chamber input different pressures
Body, realizes switching of the second level compression cylinder in cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition.
Alternatively, according to the rotary compressor of the utility model embodiment, further include：Vent flow path, the vent flow
Road connects the inside of the mixing chamber and the casing, and at least a portion of the vent flow path is located in the compression mechanism.
Further, the vent flow path is equipped with the check valve for being used to prevent gas from flowing into the mixing chamber.
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, partition plate or cover board.
Alternatively, the second puff prot of second air jet flow path is located at single stage compress cylinder, bearing, partition plate or cover board
On.
Some embodiments according to the present utility model, the slide plate in the second level compression chamber are configured to its position and pass through
The pressure for adjusting slide plate back pressure cavity is controlled.
In some specific embodiments of the utility model, the compression mechanism be equipped with the second level compression chamber
Slide plate effect magnetic element, with when the second level compression cylinder be in cutting-out cylinder operating condition to the slide plate braking.
Alternatively, the work discharge capacity of the single stage compress chamber is V1, and the work discharge capacity of first order compression chamber is V3, wherein,
V1/V3=0.3-1.5.
Alternatively, the work discharge capacity of the second level compression chamber is V2, and the work discharge capacity of first order compression chamber is V3, its
In, V2/V3=0.40-0.95.
According to the air-conditioning system of the utility model embodiment, including the rotary compression according to the utility model embodiment
Machine.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the structure diagram according to the rotary compressor of the utility model embodiment；
Fig. 2 is the sectional view according to the compression mechanism of the rotary compressor of the utility model one embodiment；
Fig. 3 is another sectional view according to the compression mechanism of the rotary compressor of the utility model one embodiment；
Fig. 4 is the sectional view according to the compression mechanism of the rotary compressor of the utility model another embodiment；
Fig. 5 is the sectional view along Fig. 4 center line A-A directions；
Fig. 6 is the sectional view according to the compression mechanism of the rotary compressor of the utility model further embodiment；
Fig. 7 is the position view according to the second puff prot of the rotary compressor of the utility model embodiment；
Fig. 8 is the variation diagram with V2/V3 according to the COP of the rotary compressor of the utility model embodiment；
Fig. 9 is the variation diagram with V1/V3 according to the COP of the rotary compressor of the utility model embodiment；
Figure 10 is the structure diagram according to the air-conditioning system of the utility model one embodiment；
Figure 11 is the structure diagram according to the air-conditioning system of the utility model another embodiment；
Figure 12 is the structure diagram according to the air-conditioning system of the utility model further embodiment；
Figure 13 is the structure diagram according to the air-conditioning system of the utility model another embodiment.
Reference numeral：
Air-conditioning system 1000；
Rotary compressor 100；Condenser 200；Flash vessel 300；Evaporator 400；First throttling 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；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；Mixing chamber 240；First air jet flow path 241；First jet channel 2411；Discharge chamber
250；Vent flow path 270；
Bent axle 23；Piston 24；Slide plate 25；Partition plate 26；Bearing 27；Cover board 28；Flexible member 291；Magnetic element 292；
Electric machine assembly 30；Stator 31；Rotor 32；
Triple valve 40；Check valve 41.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type, those of ordinary skill in the art can be to these in the case where not departing from the principle and objective of the utility model
Embodiment carries out a variety of change, modification, replacement and modification, and the scope of the utility model is limited by claim and its equivalent.
In the description of the utility model, it is to be understood that term " on ", " under ", "front", "rear", " vertical ", " water
It is flat ", " top ", " bottom ", " interior ", " outer ", " axial direction ", the orientation of the instruction such as " circumferential direction " or position relationship is based on side shown in the drawings
Position or position relationship, are for only for ease of description the utility model and simplify description, rather than instruction or the device for implying meaning
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more spy
Sign.
Below with reference to the accompanying drawings rotary compressor 100 according to the utility model embodiment is described.
Referring to figs. 1 to shown in Figure 13, can be included according to the rotary compressor 100 of the utility model embodiment：Casing
10th, compression 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 be inhaled by single-stage air entry 211
Gas, after then 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 220 and first air entry 221 of first order compression chamber, and second level compression cylinder 22b has 230 He of second level compression chamber
First row gas port, two stages of compression cylinder 22 are additionally provided with 240 and first air jet flow path 241 of mixing chamber, and mixing chamber 240 connects the first order
Compression chamber 220 and second level compression chamber 230, and mixing chamber 240 is also connected with the first air jet flow path 241.Thus, the first air-breathing
Mouth 221, first order compression chamber 220, mixing chamber 240, second level compression chamber 230, first row gas port can be sequentially communicated.Thus,
Gas can flow to mixing chamber 240 by 221 air-breathing of the first air entry after being compressed in first order compression chamber 220, same with this
When, mixing chamber 240 can also flow to by 241 air inlet of the first air jet flow path after being then mixed with gas compressed
Two-stage compression chamber 230, escapes and enter in casing 10 after being re-compressed in second level compression chamber 230 from first row gas port
Portion space.
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 mixing chamber 240, meanwhile, calm the anger in being passed through by the first air jet flow path 241 into mixing 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 actual rotary compressor.
Thus, single stage compress cylinder 21 can realize gas single stage compress, 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 work at the same time, can
With increase ultralow temperature it is low processed when compressor displacement, and two stages of compression on this condition can have suitable high pressure ratio it is big
Pressure difference, while discharge capacity increase can be taken into account, and optimize kind of refrigeration cycle, reach the effect that increase ability takes into account improving energy efficiency at the same time,
It is particularly suitable for the working condition of the low system of low temperature.
Further, second level compression cylinder 22b can cutting-out cylinder operating condition and release cutting-out cylinder operating condition between can
Switching.Here, cutting-out cylinder operating condition refers to the state that gas is not compressed in second level compression chamber 230, releases cutting-out cylinder fortune
Turn state to refer to, when the normal air inlets of second level compression cylinder 22b, gas can be compressed in second level compression chamber 230.By
This, the second level compression cylinder 22b as hiigh pressure stage cylinder can be formed as transfiguration cylinder, you can, can not also work with work
Make.
Thus, under the operating mode of underload, first in single stage compress cylinder 21 and two stages of compression cylinder 22 can be used
Level compression cylinder 22a carries out single stage compress, and the discharge capacity of such rotary compressor 100 is smaller, moreover, overvoltage is reduced, discharge capacity ratio
Appropriate, efficiency can be higher.In the operating mode of heavy load, as ultralow temperature it is low processed when, single stage compress cylinder 21, first order compressed gas
Cylinder 22a and second level compression cylinder 22b can be run, and rotary compressor 100 can be worked with delivery, and this big
Under the working condition of pressure difference high pressure ratio, system circulation is optimized in the compression circulation of two-stage jet, and can effectively reduce each
The leakage of level cylinder, while the power that jet is saved is more, therefore, under these conditions, two stages of compression is operated in increase energy
Improving energy efficiency is also taken into account while power.
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, and under the driving of rotor 32, bent axle 23 can be rotated in corresponding compression chamber with piston 24 and matched somebody with somebody with slide plate 25
Close, 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 art technology
It is knowable for personnel, is no longer described in more detail herein.
According to the rotary compressor 100 of the utility model embodiment, by setting single stage compress cylinder 21 and two-stage pressure
Contracting cylinder 22, and the mixing chamber for connecting first order compression chamber 220 and second level compression chamber 230 is set in two stages of compression cylinder 22
240 and the second level compression cylinder 22b of two stages of compression cylinder 22 is arranged to transfiguration cylinder, it is possible to achieve while take into account compression
The service ability of machine and the effect of efficiency, optimize kind of refrigeration cycle.
Alternatively, some embodiments according to the present utility model, single stage compress chamber 210, first order compression chamber 220 and second
Level compression chamber 230 can be along the axial arbitrary arrangement of casing 10.In other words, rotary compressor 100 has three along compressor
The compression chamber of the axial alignment of structure 20, three compression chambers respectively with single stage compress chamber 210, first order compression chamber 220 and the second level
Compression chamber 230 corresponds, any one in three compression chambers could be provided as single stage compress chamber 210, first order compression chamber
220 and second level compression chamber 230 in any one.Those skilled in the art can flexibly set three pressures according to the actual requirements
The arrangement of contracting chamber.
For example, in the embodiment shown in Fig. 1 to Fig. 4, compressor has upside compression chamber, intermediate compression chamber and lower side pressure
Contracting 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
It can be second level compression chamber 230.Thus, first order compression chamber 220 and second level compression chamber 230 can be located adjacent one another, set
More convenient, gas flow capability is more preferable.
Some embodiments according to the present utility model, are also provided with discharge chamber 250, discharge chamber 250 in compression mechanism 20
Connected with first row gas port, as shown in Figures 2 and 3.Thus, the gases at high pressure by two stages of compression can pass through first row gas port
Enter in discharge chamber 250, be then then exhausted from the inner space of casing 10, exhaust performance lifting.
In the embodiment of the utility model, the setting position for discharge chamber 250 do not do it is specifically limited, alternatively,
In some embodiments of the utility model, discharge chamber 250 can be by being located at single stage compress chamber 210, first order compression chamber 220 and
The partition plate 26 of two stackings between any two in two-stage compression chamber 230 limits.That is, single stage compress chamber
The 210th, two partition plates 26 can be set between any two in first order compression chamber 220 and second level compression chamber 230, two every
Plate 26 is stacked, and discharge chamber 250 can be limited by the partition plate 26 of the two stackings, set and be more convenient, and can pass through
Replace the adjustment that partition plate 26 realizes discharge chamber 250.
For example, in the embodiment shown in Fig. 1 to Fig. 4, can between first order compression chamber 220 and second level compression chamber 230
To set a partition plate 26, the partition plate 26 of two stackings can be set between single stage compress chamber 210 and second level compression chamber 230,
Discharge chamber 250 can have the two partition plates 26 to limit.
In the embodiment of the utility model, according to the difference of structure, mixing chamber 240 can flexibly be arranged on multiple positions
Place, there is no special restriction on this for the utility model.For example, some specific examples according to the present utility model, mixing chamber 240 can be with
By be located between any two in single stage compress chamber 210, first order compression chamber 220 and second level compression chamber 230 two s'
The partition plate 26 of stacking limits.For another example mixing chamber 240 can by compression mechanism 20 bearing 27 and be located on bearing 27
Cover board 28 limits, wherein, bearing 27 can be upper bearing (metal), or lower bearing, shown as shown in Figure 1 to Figure 4, mixing chamber 240
Limited by the cover board 28 that the lower section of bearing 27 is located at positioned at the bearing 27 positioned at downside and lid.Wherein, set for mixing chamber 240
For structure between two partition plates 26, high-pressure chamber can be set on the bearing 27 of downside to make as discharge chamber
With as shown in Figure 6.Alternatively, in the embodiment shown in fig. 6, cover board 28 can also remove, can on the bearing 27 of downside
Directly to set muffler.
Alternatively, referring to figs. 1 to can set the first jet channel 2411 shown in Fig. 6, in two stages of compression cylinder 22, first
At least a portion of air jet flow path 241 is formed by the first jet channel 2411, and the first puff prot of the first air jet flow path 241 can be with
It is located on second level compression cylinder 22b, second level compression cylinder 22b, bearing 27, partition plate 26 or cover board 28, can be according to compression
The concrete structure of mechanism 20 flexibly sets the position of the first puff prot of the first air jet flow path 241, realizes outside setting for greater flexibility
Portion's structure, convenient installation.
Alternatively, with reference to shown in Fig. 1, Figure 10 to Figure 13, rotary compressor 100 further includes the second air jet flow path 212, the
Two air jet flow paths 212 are connected with single stage compress chamber 210.Thus, single stage compress cylinder 21 can further optimize list with jet
The kind of refrigeration cycle of level compression, improves the ability of single stage compress, while improve the low-temperature heating capacity of single stage compress.
Second jet channel 213 can be set in single stage compress cylinder 21, as shown in fig. 7, the second jet channel 213 can be with
As a part for 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, partition plate 26 or cover board 28, mutually fitted with the other structures preferably with compression mechanism 20
Match somebody with somebody.
In the embodiment of the utility model, for second level compression cylinder 22b change capacitance type do not do it is specifically limited.Can
Selection of land, in some specific embodiments of the utility model, second level compression cylinder 22b can be by controlling the first air jet flow path
241 pressure size realizes cutting-out cylinder operating condition and releases the switching of cutting-out cylinder operating condition, and handover operation is convenient and reliable.Example
Such as, in some specific examples of the utility model, the pressure of inspiration(Pi) of first order compression cylinder 22a can be in high pressure and middle pressure
Between switch, so as to fulfill cutting-out cylinder operating condition and release the switchings of cutting-out cylinder operating condition both operating modes.
Specifically, when whiff pressure is high pressure, the pressure at expulsion of first order compression cylinder 22a is high pressure, and the second level is pressed
The pressure of inspiration(Pi) and pressure at expulsion of contracting cylinder 22b is high pressure, at this time, second level compression cylinder 22b not compressed gas, the second level
Compression cylinder 22b realizes cutting-out cylinder, and two stages of compression cylinder 22 realizes single stage compress；When whiff pressure is middle pressure, first order compression
The pressure at expulsion of cylinder 22a is middle pressure, and the pressure of inspiration(Pi) of second level compression cylinder 22b is middle pressure, at this time, first order compression cylinder
22a and second level compression cylinder 22b can form two stages of compression, realize and release cutting-out cylinder.The Suck and exhaust pressure of compression cylinder is
High 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 be normal
Work, releases cutting-out cylinder.
Alternatively, control valve system can be equipped with the first air jet flow path 241 to control the pressure of the first air jet flow path 241
Size.For example, as shown in Figure 10, control valve system can be triple valve 40, three mouths of triple valve 40 respectively with mixing chamber
240th, flash vessel 300 is connected with casing exhaust outlet.Thus, it is possible to it is passed through by controlling triple valve 40 to realize into mixing chamber 240
Medium pressure gas or gases at high pressure, air inlet are easy to control.
In other embodiments of the utility model, the change capacitance type of second level compression cylinder 22b is cut into slide plate back pressure
Change, with reference to shown in Figure 11 and Figure 12.Specifically, slide plate back pressure cavity 215 is also provided with compression mechanism 20, can be controlled with passing through
The magnitude of back pressure of slide plate 25 processed realizes switching of the single stage compress cylinder 21 in cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition, cuts
Change easy to operate and reliable.
For example, in specific embodiment as shown in figure 11, on the back pressure cavity pipeline 217 that is connected with slide plate back pressure cavity 215
Triple valve 40 can be set, and 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 low-pressure gas or gases at high pressure are passed through into slide plate back pressure cavity 215 by controlling triple valve 40 to realize, into
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,
Second level compression cylinder 22b is in cutting-out cylinder state, and when being passed through gases at high pressure, slide plate 25 is in normal operating conditions, the second level
Compression cylinder 22b releases cutting-out cylinder.
For another example in specific embodiment as shown in figure 12, the back pressure cavity pipeline 217 that is connected with slide plate back pressure cavity 215
On triple valve 40 can be set, three mouths of triple valve 40 respectively with slide plate back pressure cavity 215, reservoir outlet and casing exhaust outlet
Connection.Thus, it is possible to medium pressure gas or gases at high pressure are passed through into slide plate back pressure cavity 215 by controlling triple valve 40 to realize,
Air inlet is easy to control.When ventilate medium pressure gas when, the backside pressure of slide plate 25 is less than head pressure, and slide plate 25 does not work, second
Level compression cylinder 22b is in cutting-out cylinder state, and when being passed through gases at high pressure, slide plate 25 is in normal operating conditions, second level compression
Cylinder 22b releases cutting-out cylinder.
Wherein, the check valve 41 of the gas outflow prevented in mixing chamber 240 can be equipped with the first air jet flow path 241.Such as
Shown in Figure 11 and Figure 12, check valve 41 can control gas unidirectional to be delivered to mixing chamber 240, that is to say, that the first air jet flow path
Gas on 241 can be flowed into mixing chamber 240 by check valve 41, and the gas in single stage compress chamber 210 cannot then lead to
Check valve 41 is crossed outwards to flow.
Some embodiments according to the present utility model, rotary compressor 100 further include four-way valve 700, as shown in figure 13.
Two output terminals of four-way valve 700 can connect the slide plate back pressure cavity 215 and mixing chamber of second level compression cylinder 22b respectively
240, two input terminals of four-way valve 700 are respectively adapted to the gas for introducing different pressures, with respectively to slide plate back pressure cavity 215 and institute
The gas that mixing chamber 240 inputs different pressures is stated, second level compression cylinder 22b is realized in cutting-out cylinder operating condition and releases cutting-out cylinder fortune
Turn the switching of state.For example, two input terminals of four-way valve 700 can be connected to flash vessel and casing exhaust outlet respectively, to draw
Enter high pressure or middle pressure.When slide plate back pressure cavity 215 introduces gases at high pressure, and mixing chamber 240 introduces medium pressure gas, slide plate 25 is motionless
Make, second level compression cylinder 22b can realize cutting-out cylinder；Conversely, second level compression cylinder 22b releases cutting-out cylinder, two stages of compression cylinder
22 pairs of gases realize two stages of compression.
Some embodiments according to the present utility model, rotary compressor 100 can also include：Vent flow path 270, such as schemes
Shown in 4 and Fig. 5, vent flow path 270 can connect the inside of mixing chamber 240 and casing.Thus, when second level compression cylinder
During 22b cutting-out cylinders, the gas of first order compression cylinder 22a can directly be discharged into the inside of casing, Ke Yijian by vent flow path 270
Change gas flow paths, exhaust is more smooth.Alternatively, at least a portion of vent flow path 270 can be arranged on compression mechanism 20
It is interior.Thus, it is possible to save cost, simplify external structure.
Further, vent flow path 270 is equipped with the check valve 41 for being used to prevent gas from flowing into mixing chamber 240, such as Fig. 4 institutes
Show.That is, the gas in mixing chamber 240 can flow to the inside of casing 10 by the check valve 41 on vent flow path 270,
And the gas of the inside of casing 10 cannot be then flowed into mixing chamber 240 by vent flow path 270, it is particularly possible to prevent second
During level compression cylinder 22b normal works, the gases at high pressure of the inside of casing 10 are blowed back into the mixing chamber 240 of middle pressure.
Alternatively, the slide plate 25 in second level compression chamber 230 can be constructed its position by adjusting slide plate back pressure cavity 215
Pressure be controlled.That is, slide plate 25 in second level compression chamber 230 no longer by flexible member 291 into row position
Control, and the pressure by adjusting gas is realized.Thus, element can be not only saved, reduces compressor production cost, and
In the second level during compression cylinder 22b releases, without the effect of the flexible members such as spring 291, slide plate 25 would not prop up piston 24,
Head that can be to avoid slide plate 25 and the friction of piston 24, can reduce abrasion and power.For example, as shown in figure 3, the second level is compressed
The suction gas port connected with slide plate back pressure cavity 215 can be set on cylinder 22b, can be by control and suck gas port into outlet feelings
The pressure size of condition control slide plate back pressure cavity 215, realizes the adjustment of 25 position of slide plate, easy to control and relatively reliable.
As shown in figure 3, the slide plate 25 in single stage compress chamber 210 and first order compression chamber 220 still can use elasticity member
Part 291 is controlled into row position, and it is more flexible that slide plate 25 connects reliable and adjusting position.
Some embodiments according to the present utility model, can be equipped with magnetic element 292 in compression mechanism 20, as shown in figure 3,
Magnetic element 292 can be acted on the slide plate 25 in second level compression chamber 230, to be in cutting-out cylinder in second level compression cylinder 22b
Slide plate 25 is braked during operating condition.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 sliding vane groove, movement is not produced because air pressure inside fluctuates, cause slide plate 25 to produce collision with piston 24 or cylinder, cause part
Damage, improves the reliability of compressor.
Assuming that the work discharge capacity of single stage compress cylinder 21 is V1, the work discharge capacity of second level compression cylinder 22b is V2, first
The work discharge capacity of level compression cylinder 22a is V3, as shown in figure 8, to keep higher efficiency, can make V2/V3=0.40-
The value range of the ratio of 0.95, i.e. V2 and V3 is 0.40-0.95 (including two endpoint values).For example, in the utility model
In some specific examples, the value of V2/V3 is respectively 0.45,0.55,0.60,0.65,0.70,0.75,0.80,0.85 etc..Such as
Shown in Fig. 9, to keep higher efficiency, the value range that can make the ratio of V1/V3=0.3-1.5, i.e. V1 and V3 is 0.3-
1.5 (including two endpoint values).For example, in some specific examples of the utility model, the value of V1/V3 is respectively 0.40,
0.55th, 0.75,0.95,1.15,1.35 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 Figure 10 to Figure 13, included according to the air-conditioning system 1000 of the utility model embodiment according to the utility model
The rotary compressor 100 of embodiment.It is above-mentioned beneficial due to being had according to the rotary compressor of the utility model embodiment
Technique effect, therefore ability and efficiency can be taken into account according to the air-conditioning system 1000 of the utility model embodiment, especially low
In the case of the low system of temperature.
Air-conditioning system 1000 can also include：Condenser 200, flash vessel 300, evaporator 400, first throttling device 500,
Second throttling device 600, four-way valve 700 and reservoir 800 etc., with reference to shown in Figure 10 to Figure 13, these components can be with rotation
Formula compressor 100, which is connected, forms compressibility circuit, its connection structure etc. is to be appreciated that to those skilled in the art
, it is not described in detail herein.
It can be applied to according to the air-conditioning system 1000 of the utility model embodiment on refrigerating plant, air-conditioning system 1000
Other form and operation be knowable for those of ordinary skill in the art, be not described in detail herein.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can in any one or more embodiments or example do not interfere, it is reconcilable in the case of can be with suitable
Mode be combined with each other.
Claims (18)
- 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 equipped with described in connection The mixing chamber of first order compression chamber and the second level compression chamber and the first air jet flow path connected with the mixing chamber, described Two-stage compression cylinder is changeable between cutting-out cylinder operating condition and releasing cutting-out cylinder operating condition；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 partition 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 mixing chamber is by being located at the single stage compress The partition plate of two stackings between any two in chamber, first order compression chamber and the second level compression chamber limits, alternatively, The mixing chamber is limited by the bearing of the compression mechanism with the cover board being located on the bearing.
- 6. rotary compressor according to claim 1, it is characterised in that further include：Second air jet flow path, second air jet flow path are connected with the single stage compress chamber.
- 7. according to the rotary compressor any one of claim 1-6, it is characterised in that the second level compression cylinder By controlling the pressure size of the first air jet flow path to realize cutting-out cylinder operating condition and releasing the switching of cutting-out cylinder operating condition.
- 8. according to the rotary compressor any one of claim 1-6, it is characterised in that the second level compression cylinder The interior slide plate back pressure cavity variable equipped with pressure, with by controlling the magnitude of back pressure of slide plate to realize that the second compression cylinder is operated in cutting-out cylinder State and the switching for releasing cutting-out cylinder operating condition, first air jet flow path are equipped with described for controlling gas unidirectional to be delivered to The check valve of mixing chamber.
- 9. according to the rotary compressor any one of claim 1-6, it is characterised in that further include：Four-way valve, two output terminals of the four-way valve connect the slide plate back pressure cavity of the second level compression cylinder and described respectively Mixing chamber, two input terminals of the four-way valve are respectively adapted to the gas for introducing different pressures, with respectively to the slide plate back pressure The gas of chamber and mixing chamber input different pressures, realizes that the second level compression cylinder is stopped in cutting-out cylinder operating condition and releasing The switching of cylinder operating condition.
- 10. rotary compressor according to claim 1, it is characterised in that further include：The inside of vent flow path, the vent flow path connection mixing chamber and the casing, at least the one of the vent flow path Part is located in the compression mechanism.
- 11. rotary compressor according to claim 10, it is characterised in that the vent flow path, which is equipped with, to be used to prevent gas Body flows into the check valve of the mixing chamber.
- 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, partition plate or cover board.
- 13. rotary compressor according to claim 6, it is characterised in that the second jet of second air jet flow path Mouth is located on single stage compress cylinder, bearing, partition plate or cover board.
- 14. rotary compressor according to claim 1, it is characterised in that the slide plate quilt in the second level compression chamber It is configured to its position and is controlled by adjusting the pressure of slide plate back pressure cavity.
- 15. rotary compressor according to claim 1, it is characterised in that the compression mechanism is equipped with and described the Two-stage compression intracavitary slide plate effect magnetic element, with when the second level compression cylinder is in cutting-out cylinder operating condition to institute State slide plate braking.
- 16. rotary compressor according to claim 1, it is characterised in that the work discharge capacity of the single stage compress chamber is V1, the work discharge capacity of first order compression chamber is V3, wherein, V1/V3=0.3-1.5.
- 17. rotary compressor according to claim 1, it is characterised in that the work discharge capacity of the second level compression chamber For V2, the work discharge capacity of first order compression chamber is V3, wherein, V2/V3=0.40-0.95.
- 18. a kind of air-conditioning system, it is characterised in that including the rotary compression according to any one of claim 1-17 Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721088621.5U CN207297359U (en) | 2017-08-28 | 2017-08-28 | Rotary compressor and there is its air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721088621.5U CN207297359U (en) | 2017-08-28 | 2017-08-28 | Rotary compressor and there is its air-conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN207297359U true CN207297359U (en) | 2018-05-01 |
Family
ID=62438847
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721088621.5U Withdrawn - After Issue CN207297359U (en) | 2017-08-28 | 2017-08-28 | Rotary compressor and there is its air-conditioning system |
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| Country | Link |
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| CN (1) | CN207297359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489619A (en) * | 2017-08-28 | 2017-12-19 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its air-conditioning system |
-
2017
- 2017-08-28 CN CN201721088621.5U patent/CN207297359U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489619A (en) * | 2017-08-28 | 2017-12-19 | 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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