CN105864041A - Compressor and air conditioner with same - Google Patents

Compressor and air conditioner with same Download PDF

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Publication number
CN105864041A
CN105864041A CN201610352894.XA CN201610352894A CN105864041A CN 105864041 A CN105864041 A CN 105864041A CN 201610352894 A CN201610352894 A CN 201610352894A CN 105864041 A CN105864041 A CN 105864041A
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CN
China
Prior art keywords
compressor
aisle
port
center
cylinder
Prior art date
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Granted
Application number
CN201610352894.XA
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Chinese (zh)
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CN105864041B (en
Inventor
翟元彬
阙沛祯
胡艳军
黄建峰
杨欧翔
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Priority to CN201610352894.XA priority Critical patent/CN105864041B/en
Publication of CN105864041A publication Critical patent/CN105864041A/en
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Publication of CN105864041B publication Critical patent/CN105864041B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/122Arrangements for supercharging the working space

Abstract

The invention provides a compressor and an air conditioner with same. The compressor comprises a first compression part with an exhaust port, a second compression part with an air suction port, and an intermediate passage with a first port and a second port, wherein the first port communicates with the exhaust port of the first compression part, the second port communicates with the air suction port of the second compression part, enthalpy increasing air supply openings are further formed in the circumferential wall of the intermediate passage, and the circulation area of a position, provided with the enthalpy increasing air supply opening, of the intermediate passage is smaller than the circulating area of the first port, so that a cold medium can be guided to the intermediate passage from the enthalpy increasing air supply openings by utilizing Bernoulli effect, thus solving the problem that the cylinder of the second stage of compression part cannot timely absorb enthalpy supplementing air.

Description

Compressor and there is its air-conditioner
Technical field
The present invention relates to air-conditioning equipment field, in particular to a kind of compressor and the air-conditioner with it.
Background technology
Existing Dual-level enthalpy adding compressor is conduct after the aerofluxus by first order compression unit mixes with the increasing enthalpy QI invigorating after once throttling The air-breathing of second level compression.Wherein the aerofluxus of first order compression unit typically enters the by the circulation passage in compressor pump assembly The air entry of the cylinder of secondary compressing portion;Once the increasing enthalpy QI invigorating after throttling is generally by flange or the gas of second level compression unit The air entry of the cylinder increasing enthalpy gas supplementing opening entrance second level compression unit on cylinder, and mix with the aerofluxus of first order compression unit.Once The air entry increasing the enthalpy QI invigorating second level to be entered compression unit after throttling, its intermediate pressure (increasing the pressure of enthalpy QI invigorating) must be big In the pressure at expulsion of first order compression unit, and the height of intermediate pressure directly affects compressor entirety efficiency.
Existing Dual-level enthalpy adding compressor there is problems in that
Increasing enthalpy superfeed pressure too low, the gas specific volume after the cylinder compression of first order compression unit is big, with the ratio of compressor air suction specific volume Will be greater than high-low pressure chamber (cylinder of second level compression unit and the cylinder of the first order compression unit) volumetric ratio of compressor, high pressure chest ( The cylinder of secondary compressing portion) will be unable to siphon away completely the gas (increasing enthalpy QI invigorating) being in intermediate pressure of middle pressure intracavity, the most in time The intermediate-pressure gas siphoned away by high pressure chest is back to QI invigorating pipeline, will cause air-breathing and the first order compression unit of second level compression unit The loss of aerofluxus increase, power is higher, and COP is on the low side, is simultaneously also unfavorable for the stability that flash vessel works.
Increase the saturated liquid pressure that enthalpy superfeed pressure is too high, corresponding more than supercooling temperature, then enter flash vessel after first order throttling Remaining as sub-cooled liquid refrigerant, now flash vessel effect is only a reservoir, is not economizer, fills into the general of compressor Being liquid refrigerant, now compressor is it may happen that hydraulic compression, and refrigerating capacity reduces, and power is higher, and COP reduces.
Summary of the invention
Present invention is primarily targeted at and a kind of compressor is provided and there is its air-conditioner, of the prior art at increasing enthalpy to solve When the pressure of QI invigorating is relatively low, the cylinder of second level compression unit can not absorb the problem increasing enthalpy QI invigorating timely.
To achieve these goals, according to an aspect of the invention, it is provided a kind of compressor, including: the first compression unit, There is air vent;Second compression unit, has air entry;Center-aisle, has the first port and the second port, the first port with The air vent connection of the first compression unit, the air entry connection of the second port and the second compression unit, the perisporium of center-aisle also sets up There is increasing enthalpy gas supplementing opening, the circulation area circulation area less than the first port being provided with the position increasing enthalpy gas supplementing opening of center-aisle, To utilize Bernoulli effect to be introduced coolant by increasing enthalpy gas supplementing opening to center-aisle.
Further, center-aisle includes by the first port to increasing the first passage section that enthalpy gas supplementing opening extends, at least part of first The circulation area of channel section is gradually reduced along the first port to the direction increasing enthalpy gas supplementing opening.
Further, the 0.01 of the circulation area that circulation area is the first port being provided with the position increasing enthalpy gas supplementing opening of center-aisle To 0.4 times.
Further, in the cross section being parallel to its axis of center-aisle, the sidewall of first passage section is curved;Or, in Between passage the cross section being parallel to its axis in, the sidewall of first passage section is linear.
Further, increase enthalpy gas supplementing opening and be arranged on one end away from the first port of first passage section.
Further, center-aisle also includes by the second port to increasing the second channel section that enthalpy gas supplementing opening extends, at least part of the The circulation area of two channel sections is gradually reduced along the second port to the direction increasing enthalpy gas supplementing opening.
Further, in the cross section being parallel to its axis of center-aisle, the sidewall of second channel section curved or, in centre In the cross section being parallel to its axis of passage, the sidewall of second channel section is linear.
Further, center-aisle also includes the third channel section being arranged between first passage section and second channel section, threeway The circulation area of road section is consistent, increases enthalpy gas supplementing opening and is arranged on the perisporium of third channel section.
Further, the first compression unit includes that the first cylinder, the second compression unit include the second cylinder, the first cylinder and the second cylinder Stacked, compressor also includes the dividing plate being arranged between the first cylinder and the second cylinder, center-aisle be formed at the first cylinder, the On the assembly of two cylinders and dividing plate.
Further, compressor also includes housing unit, and center-aisle is positioned at the outside of housing unit.
Further, compressor also includes: the first connecting line, is connected with the first port and extends to the internal connection of housing unit The air vent of the first compression unit;Second connecting line, is connected with the second port and extends to housing unit internal connection the second compression The air entry in portion.
According to a further aspect in the invention, it is provided that a kind of air-conditioner, this air-conditioner includes above-mentioned compressor.
Application technical scheme, by by the circulation area being provided with the position increasing enthalpy gas supplementing opening of center-aisle less than the The circulation area of the air vent in one stage of compression portion so that be provided with the velocity of liquid assets increase increasing coolant at enthalpy gas supplementing opening, exerting uncle The pressure acting on this position lower of profit effect reduces, and is conducive to, by increasing enthalpy gas supplementing opening introducing coolant, advantageously accounting in prior art The cylinder of second level compression unit when the pressure increasing enthalpy QI invigorating is relatively low can not absorb the problem increasing enthalpy QI invigorating timely.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the compressor of the first embodiment of the present invention;
Fig. 2 shows the structural representation of the local of the compressor of the first embodiment of the present invention;
Fig. 3 shows the schematic enlarged-scale view in Fig. 2 at A;
Fig. 4 shows the signal of the air-conditioner system of the first embodiment of the present invention;
Fig. 5 shows the structural representation of the local of the compressor of the second embodiment of the present invention;
Fig. 6 shows the structural representation of the local of the compressor of the third embodiment of the present invention;
Fig. 7 shows the schematic enlarged-scale view in Fig. 6 at B;
Fig. 8 shows pressure-plotting in the center-aisle of the compressor of the third embodiment of the present invention.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
1, compressor;2, gas-liquid separator;3, outdoor heat exchanger;4, indoor heat exchanger;5a, a choke valve;5b, two Secondary choke valve;6, flash vessel;7, stop valve;8, enthalpy gas-liquid separator is increased;9, four-way change-over valve;10, the first compression unit; 11, the first cylinder;12, the first roller;20, the second compression unit;21, the second cylinder;22, the second roller;30, middle logical Road;31, first passage section;32, second channel section;33, third channel section;34, enthalpy gas supplementing opening is increased;40、;51, upper cover Assembly;52, housing unit;53, lower cover component;60, stator module;71, lower flange;72, lower flange cover plate;80、 Dividing plate;90, bent axle.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined. Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one
Fig. 1 shows the structural representation of the compressor of the present embodiment, shows the pump housing portion of the compressor of the present embodiment in Fig. 2 The structural representation divided, Fig. 3 shows the schematic enlarged-scale view in Fig. 2 at A.
In conjunction with Fig. 1 to shown in 3, the compressor of the present embodiment includes first compression unit the 10, second compression unit 20 and connects the first pressure The air vent in contracting portion 10 and the center-aisle 30 of the air entry of the second compression unit 20.
First port of center-aisle 30 and the air vent connection of the first compression unit 10, the second port of center-aisle 30 and second The air entry connection of compression unit 20, the perisporium of center-aisle 30 is additionally provided with increasing enthalpy gas supplementing opening 34, the setting of center-aisle 30 There is the circulation area circulation area less than the first port of the position increasing enthalpy gas supplementing opening 34, to utilize Bernoulli effect by increasing enthalpy QI invigorating Mouth 34 introduces coolant to center-aisle 30.
In the present embodiment, the coolant after the first compression unit 10 compression is delivered to the second compression unit 20 again via center-aisle 30 It is compressed, and the QI invigorating that mixing is introduced by increasing enthalpy gas supplementing opening 34 in center-aisle 30.
Can obtain according to Bernoulli effect, the biggest pressure of flow velocity of fluid is the least, therefore center-aisle 30 is provided with increasing enthalpy After the circulation area of the position of gas supplementing opening 34 is set smaller than the circulation area of the first port, center-aisle 30 is provided with increasing The flow velocity of enthalpy gas supplementing opening 34 position coolant increases, and causes pressure herein to reduce, reduces the pressure of center-aisle 30, increases Big QI invigorating pressure reduction, solves and original causes second vapor injection amount the lowest because pressure is the highest in center-aisle 30, and compressor efficiency is relatively low Problem.
The compressor QI invigorating of the present embodiment is easier to relatively, has both solved because the pressure in air supply passage is less than center-aisle 30 Pressure and the adverse current that causes;Also the excessive of superfeed pressure setting can need not be realized smooth QI invigorating, solve again superfeed pressure mistake The problem of the hydraulic compression that height causes, solves the problem that Dual-level enthalpy adding compressor reliability is low.
Alternatively, in order to ensure good QI invigorating effect, the circulation being provided with the position increasing enthalpy gas supplementing opening 34 of center-aisle 30 Area is 0.01 to 0.4 times of the circulation area of the first port.
As it is shown on figure 3, center-aisle 30 includes by the first port to increasing the first passage section 31 that enthalpy gas supplementing opening 34 extends, first The circulation area of channel section 31 is gradually reduced along the first port to the direction increasing enthalpy gas supplementing opening 34.
Alternatively, increase enthalpy gas supplementing opening 34 and be arranged on one end away from the first port of first passage section 31.Also enthalpy QI invigorating will be increased Mouth 34 is arranged near the aditus laryngis at the circulation area minimum of first passage section 31.
Circulation area is gradually reduced to play avoids coolant to produce eddy current during flowing, it is ensured that the circulation of coolant is more suitable Freely, noise is advantageously reduced.
In the present embodiment, in the cross section being parallel to its axis of center-aisle 30, the sidewall of first passage section 31 is curved.
As it is shown on figure 3, center-aisle 30 also includes by the second port to increasing the second channel section 32 that enthalpy gas supplementing opening 34 extends, the The circulation area of two channel sections 32 is gradually reduced along the second port to the direction increasing enthalpy gas supplementing opening 34.
In the present embodiment, in the cross section being parallel to its axis of center-aisle 30, the sidewall of second channel section 32 is curved.
As shown in Figure 3, the center-aisle 30 of the present embodiment is made up of first passage section 31 and second channel section 32, center-aisle 30 form hourglass shape, increase the peri-laryngeal at the minimum of the circulation area that enthalpy gas supplementing opening 34 is arranged on center-aisle 30.
Can certainly be: in the cross section being parallel to its axis of center-aisle 30 that the sidewall of second channel section 32 is linearly Type, and this straight line arranges obliquely relative to the axis of center-aisle 30, so that the circulation area of second channel section 32 is along leaning on Reduce through increasing enthalpy gas supplementing opening 34 direction, and the sidewall of first passage section 31 is curved in above-mentioned cross section;Or, first passage The sidewall of section 31 linearly type in above-mentioned cross section, and second channel section 32 is curved in above-mentioned cross section;Or first passage Section 31 and the sidewall of second channel section 32 the most linearly type in above-mentioned cross section.
As in figure 2 it is shown, the compressor of the present embodiment is rolling rotor compressor, the first compression unit 10 includes the first cylinder 11 With the first roller 12 being arranged in the first cylinder 11, the second compression unit 20 includes the second cylinder 21 and is arranged on the second cylinder 21 In the second roller 22.It is provided with dividing plate 80 between first cylinder 11 and the second cylinder 21.Center-aisle 30 is formed at the first gas On the assembly of cylinder the 11, second cylinder 21 and dividing plate 80.
First cylinder 11 and the second cylinder 21 are fixed between method assembly 40 and lower flange assembly, and lower flange assembly includes purgation Orchid 71 and lower flange cover plate 72, form venting cavity between lower flange 71 and lower flange cover plate 72, the first compression unit 10 is arranged on The top of lower flange 71, the second compression unit 20 is arranged on the top of the first compression unit 10, after the first compression unit 10 compression In the venting cavity that coolant discharging to lower flange 71 and lower flange cover plate 72 is formed, the first port of center-aisle 30 and venting cavity phase Logical, the second port of center-aisle 30 and the air inlet of the second cylinder 21 communicate, and are further opened with on the sidewall of the first cylinder 11 Air supply passage, air supply passage communicates with increasing enthalpy gas supplementing opening 34.
Such as Fig. 1, the compressor of the present embodiment connects and has gas-liquid separator 2 and increase enthalpy gas-liquid separator 8.
According to the another aspect of the application, the present embodiment also discloses a kind of air-conditioner, and Fig. 4 shows the air-conditioner of the present embodiment System diagram, can obtain from figure compressor 1 that air-conditioner includes being sequentially connected with, four-way change-over valve 9, outdoor heat exchanger 3, Choke valve 5a, flash vessel 6, indoor heat exchanger 4, second throttle valve 5b and gas-liquid separator 2.Compressor 1 is above-mentioned Compressor.
In the present embodiment, flash vessel 6 is arranged between a choke valve 5a and indoor heat exchanger 4, and being used for of flash vessel 6 exports The outlet of the coolant of flash distillation communicates with the increasing enthalpy gas supplementing opening 34 of compressor, relatively low owing to flashing off refrigerant temperature, by itself and the first pressure Coolant after contracting portion 10 compression is mixed into the air entry of the second compression unit 20, is conducive to improving the inspiration capacity of the second compression unit 20.
Increase enthalpy gas-liquid separator 8 to be arranged between increasing enthalpy gas supplementing opening 34 and flash vessel 6, increase enthalpy gas-liquid separator 8 and flash vessel Stop valve 7 it is additionally provided with between 6.
Gas-liquid separator 2 is connected with the air inlet of the first cylinder 11 of the first compression unit 10 of two-stage enthalpy increasing rotor-type compressor 1, Increase enthalpy gas-liquid separator 8 to be connected with the increasing enthalpy gas supplementing opening 34 on the center-aisle 30 being arranged on.The air vent of compressor 1 passes through Four-way change-over valve 9 is connected with outdoor heat exchanger 3, and outdoor heat exchanger 3 is by choke valve 5a, flash vessel 6 and second throttle Valve 5b is connected with indoor heat exchanger 4, and indoor heat exchanger 4 is connected with gas-liquid separator 2 by four-way change-over valve 9, flash vessel Gaseous refrigerant is separated by 6, is connected with increasing enthalpy gas-liquid separator 8, and flash vessel 6 is positioned at a choke valve 5a and two partial nodes Between stream valve 5b.
As it is shown in figure 1, compressor 1 also include cover assembly 51, stator module 60, rotor pump assembly, housing unit 52, The compositions such as gas-liquid separator 2, lower cover component 53, increasing enthalpy gas-liquid separator 8.Wherein rotor pump assembly is by the pump housing and rotor By colding pressing or hot cover process connection, and by being welded to connect on housing unit 52, stator module 60 is by hot cover process even Being connected on housing unit 52, gas-liquid separator 2 is welded on the suction of the first cylinder 11 of the first compression unit 10 of rotor pump assembly QI KOU, increases enthalpy gas-liquid separator 8 and is welded on the center-aisle 30 between the first compression unit 10 and the second compression unit 20, upper cover Assembly 51 and lower cover component 53 are all welded on housing unit 52.
During compressor operating, stator module 60 provides driving force with rotor, and the roller on band dynamic crankshaft 90 and bent axle does the cycle Rotating, it is achieved pump housing air-breathing, compression, the cycle of operation of aerofluxus, refrigerant gas sucks compressor pump by gas-liquid separator 2 Body assembly, pump assembly has two compression chambers connected, after refrigerant gas first passes through one stage of compression, and with through once throttling The mixing of middle pressure QI invigorating after enter two-stage compression, eventually pass the space of stator module 60 and rotor and discharged by cover assembly 51 Compressor.
Compressor pump assembly is by bent axle 90, upper flange component the 40, second cylinder the 21, second roller 22, dividing plate 80, first Cylinder the 11, first roller 12, lower flange 71, lower flange cover plate 72 etc. form.Wherein the first cylinder 11, lower flange assembly, First roller 12, dividing plate 80 consist of one stage of compression chamber, the second cylinder 21, upper flange component the 40, second roller with lower slide plate 22, dividing plate 80 and upper slide plate consist of two-stage compression chamber, the first cylinder 11, have between dividing plate 80 and the second cylinder 21 middle logical Road 30, at the circulation area minimum of center-aisle 30 be have passed through shown in Fig. 4 choke valve 5a, flash vessel 6, stop valve 7, To the entrance of compressor 1 QI invigorating after increasing enthalpy gas-liquid separator 8.
When this programme two-stage enthalpy increasing rotor-type compressor runs, low-temperature low-pressure refrigerant sucks the first cylinder by gas-liquid separator 2 11, after the first compression unit 10 compression, become middle pressure middle temperature refrigerant gas enter the first cylinder 11, dividing plate 80 and the second gas Center-aisle 30 between cylinder 21.
Meanwhile, in choke valve 5a, flash vessel 6, stop valve 7, an increasing enthalpy gas-liquid separator 8, force down the QI invigorating warp of temperature After increasing enthalpy gas supplementing opening 34 enters center-aisle 30, the gas of the one stage of compression discharged with the first cylinder 11 mixes, and is jointly drawn into Second cylinder 21, becomes the refrigerant gas of High Temperature High Pressure after the two-stage compression of the second cylinder 21, is drained into compressor housing In, compressor is discharged in the space between stator module 60 and rotor.
Center-aisle 30 between first compression unit 10 and second compression unit 20 of this programme Dual-level enthalpy adding compressor, is designed as two The venturi tube structure that the end big mid diameter of diameter is little, two ends mouth diameters D1, middle throat diameter D2, according to hydrodynamics even Continuous property equation: V1*D12=V2*D22, wherein V1 is entrance fluid velocity, and V2 is fluid velocity at throat, due to D1 > and D2, Obtain V1 < V2.
In figs. 2 and 3, Pm is intermediate pressure superfeed pressure, and Ps is the first cylinder exhaust pressure;Ph is that center-aisle is straight Pressure at the minimum of footpath;Pd is the second cylinder pressure of inspiration(Pi).
According to Bernoulli equation: Ps+ ρ V12/ 2g=Ph+ ρ V22/ 2g, draws Ps > Ph is middle logical at the throat of Venturi tube At the diameter minimum in road 30, flow velocity is big, and pressure is low, sprays at throat through the middle pressure QI invigorating once throttled, owing to relatively pressing Difference increases, and can increase air compensation, improves the gas transmission coefficient of compressor, improves the efficiency of compressor.Larynx due to intermediate flow channel At portion, pressure is low, is possible to prevent the adverse current that second vapor injection causes the most greatly because of resistance, improves compressor and the reliability of air conditioning system. And owing to QI invigorating is relatively easy, superfeed pressure need not adjust too high, is possible to prevent because second vapor injection hypertonia causes hydraulic compression, Improve the reliability of compressor.
The present embodiment is applicable to Two-stage Compression or multi-stage compression mechanism.The compressor of the present embodiment at least two cylinders, Qi Zhongyi Individual cylinder is one stage of compression cylinder, and another is two-stage compression cylinder, there is the aerofluxus of one-level cylinder to two grades between two cylinders The center-aisle of the air-breathing circulation of cylinder or intermediate cavity, and center-aisle or the branch road of intermediate cavity UNICOM Gas-supplying enthalpy-increasing.
Described Two-stage Compression mechanism or the number of cylinders of multi-stage compression mechanism can be one or two or multiple, can free group Close and formed.
The thought of the solution problem of the application of the present embodiment is also applied for the rotary compressors such as vertical, horizontal.
Embodiment two
Fig. 5 shows the structural representation of the compressor of the present embodiment.First port of center-aisle 30 and the first compression unit 10 Air vent connection, the second port of center-aisle 30 connects with the air entry of the second compression unit 20, center-aisle 30 include by By the first port to increasing the first passage section that enthalpy gas supplementing opening extends, the circulation area of first passage section 31 is mended along the first port to increasing enthalpy The direction of QI KOU is gradually reduced.
Center-aisle 30 also includes by the second port to increasing the second channel section that enthalpy gas supplementing opening extends, the circulation area of second channel section It is gradually reduced along the second port to the direction increasing enthalpy gas supplementing opening.
Center-aisle 30 also includes the third channel section being arranged between first passage section and second channel section, the stream of third channel section Logical area is consistent, increases enthalpy gas supplementing opening and is arranged on the perisporium of third channel section.
In the cross section being parallel to its axis of center-aisle 30, the sidewall of first passage section 31 is linear.
In the cross section being parallel to its axis of center-aisle 30, the sidewall of second channel section 32 is linear.
The circulation area of center-aisle 30 is consistent with the circulation area of the osculum end of first passage section and second channel section.
Center-aisle 30 is formed at the dividing plate 80 between the first cylinder 11 and the second cylinder 21, and center-aisle 30 is formed at first On the assembly of cylinder the 11, second cylinder 21 and dividing plate 80.
In the cross section being parallel to its axis of center-aisle 30, the sidewall of first passage section 31 is linear.
In the cross section being parallel to its axis of center-aisle 30, the sidewall of second channel section 32 is linear.
The difference of the present embodiment and embodiment one is: the centre between its first compression unit 10 and second compression unit 20 leads to The section profile in road 30 can not be hyperbola, but the funnel shaped that two small ends are connected, the throat of its center-aisle 30 Place is positioned on dividing plate 80, and above-mentioned throat is third channel section, increases enthalpy gas supplementing opening and is also disposed on dividing plate 80.Through first Compression unit discharge refrigerant gas, discharge from the first cylinder 11, through lower flange assembly, center-aisle 30 of entering, due to every At the intermediate flow channel throat of plate 30, diameter reduces, and refrigerant flow rates increases, and pressure reduces, and the middle pressure through once throttling is mended simultaneously Gas, through increasing enthalpy gas-liquid separator 8, sprays into center-aisle 30, and the refrigerant gas discharged with the first compression unit is mixed into the Two cylinders 21, are discharged to compressor after completing two-stage compression.
Embodiment three
Fig. 6 shows the structural representation of the compressor of the third embodiment of the present invention;Fig. 7 shows the structure in Fig. 6 at B Enlarged drawing.
In conjunction with Fig. 6 and Fig. 7 it can be seen that the present embodiment is from embodiment one and the different of enforcement two: center-aisle 30 is positioned at The outside of the housing unit 52 of plasticator.
Compressor also includes that the first connecting line and the second connecting line, the first connecting line and the first port connect and extend to shell The internal air vent connecting the first compression unit 10 of body assembly 52;Second connecting line, is connected with the second port and extends to housing The internal air entry connecting the second compression unit 20 of assembly 52.
Center-aisle 30 between its first compression unit 10 and second compression unit 20 is positioned at the outside of the housing unit 52 of compressor, Middle conducting one end is connected on lower flange assembly, and the other end is connected on the second cylinder 21, by the pipeline of outside different-diameter Composition, wherein the shape of center-aisle 30 can be that two small ends if the hyperbola of embodiment one can also be enforcement two are connected Funnel shaped, the entrance of its second vapor injection is arranged at the diameter minimum throat of center-aisle 30.
Through the refrigerant gas that the first compression unit is discharged, discharge from the first cylinder 11, through lower flange assembly, enter middle logical Road 30, owing to diameter reduces at center-aisle 30 throat, refrigerant flow rates increases, and pressure reduces, simultaneously through once throttling Middle pressure QI invigorating, through increasing enthalpy gas-liquid separator 8, sprays into center-aisle 30, and the refrigerant gas discharged with the first compression unit 10 mixes Close and enter the second cylinder 21, after completing two-stage compression, be discharged to compressor.
Fig. 8 shows pressure-plotting in the center-aisle of the compressor of the present embodiment.Pressure representated by a to e is successively in the drawings Reduce.
As can be seen from the figure the first compression unit 10 is had to enter the first passage section 31 of center-aisle 30, along with first passage section 31 Being gradually reduced of circulation area, pressure is also gradually reduced, and the pressure in third channel section 33 is e, the pressure in air supply passage Power is b, therefore can realize smooth QI invigorating.The pressure distribution of additional embodiment one and embodiment two and the pressure distribution of the present embodiment Similar.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc. With replacement, improvement etc., should be included within the scope of the present invention.

Claims (12)

1. a compressor, it is characterised in that including:
First compression unit (10), has air vent;
Second compression unit (20), has air entry;
Center-aisle (30), has the first port and the second port, described first port and described first compression unit (10) Air vent connection, described second port connects with the air entry of described second compression unit (20), described center-aisle (30) Perisporium on be additionally provided with increasing enthalpy gas supplementing opening (34), described center-aisle (30) be provided with described increasing enthalpy gas supplementing opening (34) The circulation area of position less than the circulation area of described first port, to utilize Bernoulli effect by described increasing enthalpy gas supplementing opening (34) coolant is introduced to described center-aisle (30).
Compressor the most according to claim 1, it is characterised in that described center-aisle (30) includes by described first port The first passage section (31) extended to described increasing enthalpy gas supplementing opening (34), at least part of described first passage section (31) Circulation area is gradually reduced along described first port to the direction of described increasing enthalpy gas supplementing opening (34).
Compressor the most according to claim 2, it is characterised in that the described increasing enthalpy that is provided with of described center-aisle (30) is mended The circulation area of the position of QI KOU (34) is 0.01 to 0.4 times of the circulation area of described first port.
Compressor the most according to claim 2, it is characterised in that
In the cross section being parallel to its axis of described center-aisle (30), the sidewall of described first passage section (31) in Arc;Or,
In the cross section being parallel to its axis of described center-aisle (30), the sidewall of described first passage section (31) in Linear.
Compressor the most according to claim 2, it is characterised in that described increasing enthalpy gas supplementing opening (34) is arranged on described first and leads to One end away from described first port of road section (31).
Compressor the most according to claim 2, it is characterised in that described center-aisle (30) also includes by described second end The second channel section (32) that mouth extends to described increasing enthalpy gas supplementing opening (34), at least part of described second channel section (32) Circulation area be gradually reduced along described second port to the direction of described increasing enthalpy gas supplementing opening (34).
Compressor the most according to claim 6, it is characterised in that
In the cross section being parallel to its axis of described center-aisle (30), the sidewall of described second channel section (32) in Arc;Or,
In the cross section being parallel to its axis of described center-aisle (30), the sidewall of described second channel section (32) in Linear.
Compressor the most according to claim 6, it is characterised in that described center-aisle (30) also includes being arranged on described Third channel section (33) between one channel section (31) and described second channel section (32), described third channel section (33) Circulation area consistent, described increasing enthalpy gas supplementing opening (34) is arranged on the perisporium of described third channel section (33).
Compressor the most according to any one of claim 1 to 8, it is characterised in that described first compression unit (10) includes First cylinder (11), described second compression unit (20) includes the second cylinder (21), described first cylinder (11) and described Second cylinder (21) is stacked, and described compressor also includes being arranged on described first cylinder (11) and described second cylinder (21) Between dividing plate (80), described center-aisle (30) is formed at described first cylinder (11), the second cylinder (21) and institute State on the assembly of dividing plate (80).
Compressor the most according to claim 1, it is characterised in that described compressor also includes housing unit (52), described in Between passage (30) be positioned at the outside of described housing unit (52).
11. compressors according to claim 10, it is characterised in that described compressor also includes:
First connecting line, is connected with described first port and extends to that described housing unit (52) is internal connects described the The air vent of one compression unit (10);
Second connecting line, is connected with described second port and extends to that described housing unit (52) is internal connects described the The air entry of two compression units (20).
12. 1 kinds of air-conditioners, it is characterised in that include the compressor according to any one of claim 1 to 11.
CN201610352894.XA 2016-05-24 2016-05-24 Compressor and there is its air conditioner Active CN105864041B (en)

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