CN105864041B - Compressor and there is its air conditioner - Google Patents
Compressor and there is its air conditioner Download PDFInfo
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- CN105864041B CN105864041B CN201610352894.XA CN201610352894A CN105864041B CN 105864041 B CN105864041 B CN 105864041B CN 201610352894 A CN201610352894 A CN 201610352894A CN 105864041 B CN105864041 B CN 105864041B
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- aisle
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- port
- increasing enthalpy
- compressor
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- 230000006835 compression Effects 0.000 claims abstract description 101
- 238000007906 compression Methods 0.000 claims abstract description 101
- 230000001502 supplementing effect Effects 0.000 claims abstract description 53
- 239000003507 refrigerant Substances 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 description 25
- 230000009977 dual effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
- F04C29/122—Arrangements for supercharging the working space
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a kind of compressor and there is its air conditioner.Compressor includes：First compression unit, there is exhaust outlet；Second compression unit, there is air entry；Center-aisle, with first port and second port, first port connects with the exhaust outlet of the first compression unit, second port connects with the air entry of the second compression unit, increasing enthalpy gas supplementing opening is additionally provided with the perisporium of center-aisle, the circulation area of the position for being provided with increasing enthalpy gas supplementing opening of center-aisle is less than the circulation area of first port, to introduce refrigerant from increasing enthalpy gas supplementing opening to center-aisle using Bernoulli effect, the cylinder of second level compression unit can not timely absorb increasing enthalpy tonifying Qi during solving the problems, such as that the pressure of the prior art in increasing enthalpy tonifying Qi is relatively low.
Description
Technical field
The present invention relates to air-conditioning equipment field, in particular to a kind of compressor and has its air conditioner.
Background technology
Existing Dual-level enthalpy adding compressor is to be mixed by the exhaust of first order compression unit with the increasing enthalpy tonifying Qi after once throttling
Air-breathing after conjunction as second level compression.The exhaust of wherein first order compression unit typically passes through the circulation in compressor pump component
Passage enters the air entry of the cylinder of second level compression unit；Increasing enthalpy tonifying Qi after once throttling is generally by flange or second
Level compression unit cylinder on increasing enthalpy gas supplementing opening enter second level compression unit cylinder air entry, and with first order compression unit
Exhaust mixing.Increasing enthalpy tonifying Qi after once throttling will enter the air entry of second level compression unit, and in-between pressure be (increasing enthalpy tonifying Qi
Pressure) pressure at expulsion of first order compression unit must be more than, and the height of intermediate pressure directly affects compressor entirety
Efficiency.
Problems be present in existing Dual-level enthalpy adding compressor：
Increasing enthalpy superfeed pressure is too low, and the gas specific volume after the cylinder compression of first order compression unit is big, with compressor air suction ratio
The ratio between appearance will be greater than high-low pressure chamber (cylinder of second level compression unit and the cylinder of first order compression unit) volumetric ratio of compressor, high
Pressure chamber (cylinder of second level compression unit) will be unable to siphon away the gas (increasing enthalpy tonifying Qi) in intermediate pressure in middle pressure chamber completely,
The intermediate-pressure gas not siphoned away in time by high pressure chest is back to tonifying Qi pipeline, will cause the air-breathing and of second level compression unit
The loss increase of the exhaust in one stage of compression portion, power is higher, and COP is relatively low, while is also unfavorable for the stability of flash vessel work.
Increasing enthalpy superfeed pressure is too high, more than saturated liquid pressure corresponding to supercooling temperature, then enters after first order throttling and dodges
Steaming device remains as sub-cooled liquid refrigerant, and now flash vessel effect is only a reservoir, is not economizer, fills into compression
Machine will be liquid refrigerant, and now hydraulic compression may occur for compressor, and refrigerating capacity is reduced, and power is higher, and COP is reduced.
The content of the invention
It is of the prior art to solve it is a primary object of the present invention to provide a kind of compressor and there is its air conditioner
The problem of cylinder of second level compression unit can not timely absorb increasing enthalpy tonifying Qi when the pressure of increasing enthalpy tonifying Qi is relatively low.
To achieve these goals, according to an aspect of the invention, there is provided a kind of compressor, including：First compression
Portion, there is exhaust outlet；Second compression unit, there is air entry；Center-aisle, there is first port and second port, first port
Connected with the exhaust outlet of the first compression unit, second port connects with the air entry of the second compression unit, on the perisporium of center-aisle also
Increasing enthalpy gas supplementing opening is provided with, the circulation area of the position for being provided with increasing enthalpy gas supplementing opening of center-aisle is less than the circulation of first port
Area, to introduce refrigerant from increasing enthalpy gas supplementing opening to center-aisle using Bernoulli effect.
Further, center-aisle includes the first passage section extended from first port to increasing enthalpy gas supplementing opening, at least partly
The circulation area of first passage section be gradually reduced along first port to the direction of increasing enthalpy gas supplementing opening.
Further, the circulation area of the position for being provided with increasing enthalpy gas supplementing opening of center-aisle is the circulating face of first port
Long-pending 0.01 to 0.4 times.
Further, in the section parallel to its axis of center-aisle, the side wall of first passage section is curved；Or,
In the section parallel to its axis of center-aisle, the side wall of first passage section is linear.
Further, increasing enthalpy gas supplementing opening is arranged on one end of the remote first port of first passage section.
Further, center-aisle also includes the second channel section extended from second port to increasing enthalpy gas supplementing opening, at least portion
The circulation area for the second channel section divided is gradually reduced along second port to the direction of increasing enthalpy gas supplementing opening.
Further, in the section parallel to its axis of center-aisle, the side wall of second channel section it is curved or,
In the section parallel to its axis of center-aisle, the side wall 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,
The circulation area of third channel section is consistent, and increasing enthalpy gas supplementing opening is arranged on the perisporium of third channel section.
Further, the first compression unit includes the first cylinder, and the second compression unit includes the second cylinder, the first cylinder and second
Superposed cylinders, compressor also include the dividing plate being arranged between the first cylinder and the second cylinder, and center-aisle is formed in the first gas
On the assembly of cylinder, the second cylinder and dividing plate.
Further, compressor also includes housing unit, and center-aisle is located at the outside of housing unit.
Further, compressor also includes：First connecting line, it is connected and extends to inside housing unit with first port
Connect the exhaust outlet of the first compression unit；Second connecting line, it is connected with second port and extends to inside housing unit connection the
The air entry of two compression units.
According to another aspect of the present invention, there is provided a kind of air conditioner, the air conditioner include above-mentioned compressor.
Apply the technical scheme of the present invention, by by the circulation area of the position for being provided with increasing enthalpy gas supplementing opening of center-aisle
Less than the circulation area of the exhaust outlet of first order compression unit so that increase in the velocity of liquid assets for being provided with refrigerant at increasing enthalpy gas supplementing opening
Greatly, the pressure of the position reduces in the presence of Bernoulli effect, is advantageous to introduce refrigerant by increasing enthalpy gas supplementing opening, advantageously accounts for
The cylinder of second level compression unit can not timely absorb increasing enthalpy tonifying Qi when pressure of the prior art in increasing enthalpy tonifying Qi is relatively low
Problem.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form 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 local structural representation of the compressor of the first embodiment of the present invention；
Fig. 3 shows the schematic enlarged-scale view at A in Fig. 2；
Fig. 4 shows the signal of the air-conditioner system of the first embodiment of the present invention；
Fig. 5 shows the local structural representation of the compressor of the second embodiment of the present invention；
Fig. 6 shows the local structural representation of the compressor of the third embodiment of the present invention；
Fig. 7 shows the schematic enlarged-scale view at B in Fig. 6；
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 marks including the following drawings：
1st, compressor；2nd, gas-liquid separator；3rd, outdoor heat exchanger；4th, indoor heat exchanger；5a, a choke valve；It is 5b, secondary
Choke valve；6th, flash vessel；7th, stop valve；8th, increasing enthalpy gas-liquid separator；9th, four-way reversing valve；10th, the first compression unit；11st, first
Cylinder；12nd, the first roller；20th, the second compression unit；21st, the second cylinder；22nd, the second roller；30th, center-aisle；31st, first is logical
Road section；32nd, second channel section；33rd, third channel section；34th, increasing enthalpy gas supplementing opening；40、；51st, cover assembly；52nd, housing unit；
53rd, lower cover component；60th, stator module；71st, lower flange；72nd, lower flange cover plate；80th, dividing plate；90th, bent axle.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
Fig. 1 shows the structural representation of the compressor of the present embodiment, and the pump of the compressor of the present embodiment is shown in Fig. 2
The structural representation of body portion, Fig. 3 show the schematic enlarged-scale view at A in Fig. 2.
With reference to shown in Fig. 1 to 3, the compressor of the present embodiment includes the first compression unit 10, the second compression unit 20 and connects the
The center-aisle 30 of the air entry of the exhaust outlet of one compression unit 10 and the second compression unit 20.
The first port of center-aisle 30 connects with the exhaust outlet of the first compression unit 10, the second port of center-aisle 30 with
The air entry of second compression unit 20 is connected, and increasing enthalpy gas supplementing opening 34 is additionally provided with the perisporium of center-aisle 30, center-aisle 30
Be provided with the position of increasing enthalpy gas supplementing opening 34 circulation area be less than first port circulation area, with using Bernoulli effect by increasing
Enthalpy gas supplementing opening 34 introduces refrigerant to center-aisle 30.
In the present embodiment, the refrigerant after the compression of the first compression unit 10 is delivered to the second compression unit 20 via center-aisle 30
It is compressed again, and the tonifying Qi that mixing is introduced by increasing enthalpy gas supplementing opening 34 in center-aisle 30.
It can be obtained according to Bernoulli effect, the bigger pressure of flow velocity of fluid is smaller, therefore by the setting of center-aisle 30
After the circulation area for having the position of increasing enthalpy gas supplementing opening 34 is set smaller than the circulation area of first port, in setting for center-aisle 30
The flow velocity increase of the opening position refrigerant of increasing enthalpy gas supplementing opening 34 is equipped with, causes pressure herein to reduce, reduces the pressure of center-aisle 30
Power, tonifying Qi pressure difference is increased, it is too low to solve original second vapor injection amount caused by pressure is too high in center-aisle 30, compresses function
Imitate the problem of relatively low.
The compressor tonifying Qi of the present embodiment is relative to be easier, and has both been solved because the pressure in air supply passage is less than centre
The pressure of passage 30 and caused by adverse current；Also the excessive i.e. achievable smooth tonifying Qi that superfeed pressure need not be set, solves benefit again
Caused by atmospheric pressure is too high the problem of hydraulic compression, solve the problems, such as that Dual-level enthalpy adding compressor reliability is low.
Alternatively, in order to ensure good tonifying Qi effect, the position for being provided with increasing enthalpy gas supplementing opening 34 of center-aisle 30
Circulation area is 0.01 to 0.4 times of the circulation area of first port.
As shown in figure 3, center-aisle 30 includes the first passage section 31 extended from first port to increasing enthalpy gas supplementing opening 34, the
The circulation area of one channel section 31 is gradually reduced along first port to the direction of increasing enthalpy gas supplementing opening 34.
Alternatively, increasing enthalpy gas supplementing opening 34 is arranged on one end of the remote first port of first passage section 31.Also i.e. by increasing enthalpy
Gas supplementing opening 34 is arranged near the aditus laryngis at the circulation area minimum of first passage section 31.
Circulation area, which is gradually reduced to play, avoids refrigerant from producing vortex during flowing, ensures the circulation of refrigerant
It is more smooth, advantageously reduce noise.
In the present embodiment, in the section parallel to its axis of center-aisle 30, the side wall of first passage section 31 is in
Arc.
As shown in figure 3, center-aisle 30 also includes the second channel section 32 extended from second port to increasing enthalpy gas supplementing opening 34,
The circulation area of second channel section 32 is gradually reduced along second port to the direction of increasing enthalpy gas supplementing opening 34.
In the present embodiment, in the section parallel to its axis of center-aisle 30, the side wall of second channel section 32 is in arc
Shape.
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, and centre is logical
Road 30 forms hourglass shape, and increasing enthalpy gas supplementing opening 34 is arranged on the peri-laryngeal at the minimum of the circulation area of center-aisle 30.
Can certainly be：In the section parallel to its axis of center-aisle 30, the side wall of second channel section 32 is in
Linear pattern, and the straight line is obliquely set relative to the axis of center-aisle 30, to cause the circulation area of second channel section 32
Reduced along leaning on through the direction of increasing enthalpy gas supplementing opening 34, and the side wall of first passage section 31 is curved in above-mentioned section；Or, first is logical
The side wall of road section 31 linear type in above-mentioned section, and second channel section 32 is curved in above-mentioned section；Or first is logical
The side wall of road section 31 and second channel section 32 linear type in above-mentioned section.
As shown in Fig. 2 the compressor of the present embodiment is rolling rotor compressor, the first compression unit 10 includes the first cylinder
11 and the first roller 12 for being arranged in the first cylinder 11, the second compression unit 20 include the second cylinder 21 and be arranged on the second cylinder
The second roller 22 in 21.Dividing plate 80 is provided between first cylinder 11 and the second cylinder 21.Center-aisle 30 is formed first
On the assembly of cylinder 11, the second cylinder 21 and dividing plate 80.
First cylinder 11 and the second cylinder 21 are fixed between method component 40 and lower flange component, and lower flange component includes
Lower flange 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 set
In the top of lower flange 71, the second compression unit 20 is arranged on the top of the first compression unit 10, after the compression of the first compression unit 10
In the venting cavity that coolant discharging is formed to lower flange 71 and lower flange cover plate 72, first port and the venting cavity phase of center-aisle 30
Logical, the second port of center-aisle 30 communicates with the air inlet of the second cylinder 21, is further opened with the side wall of the first cylinder 11
Air supply passage, air supply passage communicate with increasing enthalpy gas supplementing opening 34.
Such as Fig. 1, gas-liquid separator 2 and increasing enthalpy gas-liquid separator 8 are connected with the compressor of the present embodiment.
According to the another aspect of the application, the present embodiment also discloses a kind of air conditioner, and Fig. 4 shows the sky of the present embodiment
The system diagram of device is adjusted, compressor 1, four-way reversing valve 9, outdoor heat exchanger that air conditioner includes being sequentially connected can be obtained from figure
3rd, a 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 for flash vessel 6 is defeated
Go out the outlet of the refrigerant of flash distillation to communicate with the increasing enthalpy gas supplementing opening 34 of compressor, it is relatively low due to flashing off refrigerant temperature, by itself and
Refrigerant after the compression of one compression unit 10 is mixed into the air entry of the second compression unit 20, is advantageous to improve the suction of the second compression unit 20
Tolerance.
Increasing enthalpy gas-liquid separator 8 is arranged between increasing enthalpy gas supplementing opening 34 and flash vessel 6, in increasing enthalpy gas-liquid separator 8 and is dodged
Stop valve 7 is additionally provided between steaming device 6.
The air inlet of gas-liquid separator 2 and the first cylinder 11 of the first compression unit 10 of two-stage enthalpy increasing rotor-type compressor 1
It is connected, increasing enthalpy gas-liquid separator 8 is connected with the increasing enthalpy gas supplementing opening 34 on the center-aisle 30 being arranged on.The exhaust outlet of compressor 1
It is connected by four-way reversing valve 9 with outdoor heat exchanger 3, outdoor heat exchanger 3 passes through a choke valve 5a, the partial node of flash vessel 6 and two
Stream valve 5b is connected with indoor heat exchanger 4, and indoor heat exchanger 4 is connected by four-way reversing valve 9 with gas-liquid separator 2, flash vessel 6
Gaseous refrigerant is separated, is connected with increasing enthalpy gas-liquid separator 8, flash vessel 6 is located at a choke valve 5a and second throttle
Between valve 5b.
As shown in figure 1, compressor 1 also include cover assembly 51, stator module 60, rotor pump assembly, housing unit 52,
Gas-liquid separator 2, lower cover component 53, increasing enthalpy gas-liquid separator 8 etc. form.Wherein rotor pump assembly is led to by the pump housing and rotor
Cold pressing or hot cover process connection are crossed, and by being welded to connect on housing unit 52, stator module 60 is connected by hot cover process
On housing unit 52, gas-liquid separator 2 is welded on the air-breathing of the first cylinder 11 of the first compression unit 10 of rotor pump assembly
Mouthful, increasing enthalpy gas-liquid separator 8 is welded on the center-aisle 30 between the first compression unit 10 and the second compression unit 20, cover assembly
51 are welded on housing unit 52 with lower cover component 53.
During compressor operating, stator module 60 provides driving force with rotor, is done with the roller on dynamic crankshaft 90 and bent axle
Cycle rotates, and realizes pump housing air-breathing, compression, the working cycles of exhaust, and refrigerant gas sucks compressor by gas-liquid separator 2
Pump assembly, pump assembly has the compression chamber of two series connection, after refrigerant gas first passes through one stage of compression, and with passing through a partial node
Enter two-stage compression after the middle pressure tonifying Qi mixing of stream, finally pass through the row of cover assembly 51 by the space of stator module 60 and rotor
Go out compressor.
Compressor pump component is by bent axle 90, upper flange component 40, the second cylinder 21, the second roller 22, dividing plate 80, first
Cylinder 11, the first roller 12, lower flange 71, lower flange cover plate 72 etc. form.Wherein the first cylinder 11, lower flange component, first
Roller 12, dividing plate 80 and lower slide plate composition are one stage of compression chamber, the second cylinder 21, upper flange component 40, the second roller 22, dividing plate
80 with upper slide plate composition be two-stage compression chamber, have center-aisle 30 between the first cylinder 11, the cylinder 21 of dividing plate 80 and second, centre
Divide at the circulation area minimum of passage 30 to have passed through a choke valve 5a, flash vessel 6, stop valve 7, increasing enthalpy gas-liquid shown in Fig. 4
From after device 8 to the entrance of the tonifying Qi of compressor 1.
When this programme two-stage enthalpy increasing rotor-type compressor is run, low-temperature low-pressure refrigerant passes through the suction of gas-liquid separator 2 the
One cylinder 11, be changed into after the compression of the first compression unit 10 middle pressure medium temperature refrigerant gas enter the first cylinder 11, dividing plate 80 with
Center-aisle 30 between second cylinder 21.
Meanwhile by forcing down the tonifying Qi of temperature in a choke valve 5a, flash vessel 6, stop valve 7, increasing enthalpy gas-liquid separator 8
After increasing enthalpy gas supplementing opening 34 enters center-aisle 30, the gas mixing with the one stage of compression of the first cylinder 11 discharge, common suction
To the second cylinder 21, it is changed into the refrigerant gas of HTHP after the two-stage compression of the second cylinder 21, is drained into compressor
In housing, compressor is discharged by the space between stator module 60 and rotor.
Center-aisle 30 between the first compression unit 10 and the second compression unit 20 of this programme Dual-level enthalpy adding compressor, design
For the small venturi tube structure of the big mid diameter of both ends diameter, both ends mouth diameters D1, middle throat diameter D2, according to fluid force
Learn continuity equation：V1*D12=V2*D22, wherein V1 is entrance fluid velocity, and V2 is fluid velocity at throat, due to D1>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+ρV12/ 2g=Ph+ ρ V22/ 2g, draws Ps>Ph, at the throat of Venturi tube i.e. among
At the diameter minimum of passage 30, flow velocity is big, and pressure is low, is sprayed into by the middle pressure tonifying Qi once to throttle at throat, due to relative
Pressure difference increases, and can increase air compensation, improve the gas transmission coefficient of compressor, improve the efficiency of compressor.Due to intermediate flow channel
Pressure is low at throat, can prevent second vapor injection adverse current caused by resistance is too big, improves the reliable of compressor and air-conditioning system
Property.And because tonifying Qi is relatively easy, superfeed pressure is too high without adjusting, and can prevent the liquid caused by second vapor injection hypertonia
Compression, improve the reliability of compressor.
The present embodiment is applied to Two-stage Compression or multi-stage compression mechanism.The compressor of the present embodiment at least two cylinders,
One of cylinder is one stage of compression cylinder, and another is two-stage compression cylinder, the row of one-level cylinder between two cylinders be present
The center-aisle or intermediate cavity that gas circulates to the air-breathing of secondary cylinder, and center-aisle or intermediate cavity UNICOM Gas-supplying enthalpy-increasing
Branch road.
Described Two-stage Compression mechanism or the number of cylinders of multi-stage compression mechanism can be one or two or multiple, can be with
Freely form.
The thought solved the problems, such as of the application of the present embodiment is also applied for the rotary compressor such as vertical, horizontal.
Embodiment two
Fig. 5 shows the structural representation of the compressor of the present embodiment.The first port of center-aisle 30 and the first compression
The exhaust outlet connection in portion 10, the second port of center-aisle 30 connect with the air entry of the second compression unit 20, and center-aisle 30 wraps
Include the first passage section from extending from first port to increasing enthalpy gas supplementing opening, the circulation area of first passage section 31 along first port extremely
The direction of increasing enthalpy gas supplementing opening is gradually reduced.
Center-aisle 30 also includes the second channel section extended from second port to increasing enthalpy gas supplementing opening, the stream of second channel section
Logical area is gradually reduced along second port to the direction of increasing enthalpy gas supplementing opening.
Center-aisle 30 also includes the third channel section being arranged between first passage section and second channel section, third channel
The circulation area of section is consistent, and increasing enthalpy gas supplementing opening is arranged on the perisporium of third channel section.
In the section parallel to its axis of center-aisle 30, the side wall of first passage section 31 is linear.
In the section parallel to its axis of center-aisle 30, the side wall of second channel section 32 is linear.
The circulation area of center-aisle 30 is consistent with the circulation area of first passage section and the osculum end of second channel section.
The dividing plate 80 that center-aisle 30 is formed between the first cylinder 11 and the second cylinder 21, center-aisle 30 are formed
On the assembly of one cylinder 11, the second cylinder 21 and dividing plate 80.
In the section parallel to its axis of center-aisle 30, the side wall of first passage section 31 is linear.
In the section parallel to its axis of center-aisle 30, the side wall of second channel section 32 is linear.
The present embodiment and the difference of embodiment one are：In between its compression unit 20 of the first compression unit 10 and second
Between the section profile of passage 30 can not be hyperbola, but the funnel shaped that two small ends are connected, in-between passage 30
At throat on dividing plate 80, above-mentioned throat is third channel section, and increasing enthalpy gas supplementing opening is also disposed on dividing plate 80.By
The refrigerant gas of one compression unit discharge, is discharged from the first cylinder 11, by lower flange component, center-aisle 30 of entering, due to
Diameter reduces at the intermediate flow channel throat of dividing plate 30, and refrigerant flow rates increase, pressure reduces, while the middle pressure by once throttling
Tonifying Qi, by increasing enthalpy gas-liquid separator 8, center-aisle 30 is sprayed into, be mixed into the refrigerant gas of the first compression unit discharge
Second cylinder 21, compressor is discharged to 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 knot at B in Fig. 6
Structure enlarged drawing.
The present embodiment is can be seen that with reference to Fig. 6 and Fig. 7 and the difference of embodiment one and implementation two is：Center-aisle 30
Positioned at the outside of the housing unit 52 of plasticator.
Compressor also includes the first connecting line and the second connecting line, and the first connecting line is connected and prolonged with first port
Extend the exhaust outlet of the first compression unit 10 of the inside of housing unit 52 connection；Second connecting line, is connected and extends with second port
To the air entry of the second compression unit 20 of the inside of housing unit 52 connection.
Center-aisle 30 between its compression unit 20 of the first compression unit 10 and second is located at the housing unit 52 of compressor
Outside, centre conducting one end are connected on lower flange component, and the other end is connected on the second cylinder 21, by the different-diameter of outside
Pipeline composition, the wherein shape of center-aisle 30 can be that the hyperbola of embodiment one such as can also implement two of two
The connected funnel shaped of small end, the entrance of in-between tonifying Qi are arranged at the diameter minimum throat of center-aisle 30.
The refrigerant gas discharged by the first compression unit, is discharged from the first cylinder 11, by lower flange component, in entering
Between passage 30, due at the throat of center-aisle 30 diameter reduce, refrigerant flow rates increase, pressure reduce, while pass through a partial node
The middle pressure tonifying Qi of stream, by increasing enthalpy gas-liquid separator 8, center-aisle 30 is sprayed into, the refrigerant gas with the discharge of the first compression unit 10
Body is mixed into the second cylinder 21, and compressor is discharged to after completing two-stage compression.
Fig. 8 shows pressure-plotting in the center-aisle of the compressor of the present embodiment.Pressure in figure representated by a to e
Power reduces successively.
As can be seen from the figure there is the first passage section 31 that the first compression unit 10 enters center-aisle 30, with first passage
The circulation area of section 31 is gradually reduced, and pressure is also gradually reduced, and the pressure in third channel section 33 is e, in air supply passage
Pressure be b, therefore smooth tonifying Qi can be realized.The pressure of the pressure distribution and the present embodiment of additional embodiment one and embodiment two
Power distribution is similar.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
- A kind of 1. compressor, it is characterised in that including：First compression unit (10), there is exhaust outlet；Second compression unit (20), there is air entry；Center-aisle (30), there is first port and second port, the first port and the row of first compression unit (10) Gas port connects, and the second port connects with the air entry of second compression unit (20), the perisporium of the center-aisle (30) On be additionally provided with increasing enthalpy gas supplementing opening (34), the stream of the position for being provided with the increasing enthalpy gas supplementing opening (34) of the center-aisle (30) Logical area is less than the circulation area of the first port, with using Bernoulli effect from the increasing enthalpy gas supplementing opening (34) in described Between passage (30) introduce refrigerant.
- 2. compressor according to claim 1, it is characterised in that the center-aisle (30) is included by the first port The first passage section (31) extended to the increasing enthalpy gas supplementing opening (34), the circulating face of at least part of first passage section (31) Product is gradually reduced along the first port to the direction of the increasing enthalpy gas supplementing opening (34).
- 3. compressor according to claim 2, it is characterised in that the increasing enthalpy that is provided with of the center-aisle (30) is mended The circulation area of the position of gas port (34) is 0.01 to 0.4 times of the circulation area of the first port.
- 4. compressor according to claim 2, it is characterised in thatIn the section parallel to its axis of the center-aisle (30), the side wall of the first passage section (31) is curved； Or,In the section parallel to its axis of the center-aisle (30), the side wall of the first passage section (31) is linear Shape.
- 5. compressor according to claim 2, it is characterised in that it is logical that the increasing enthalpy gas supplementing opening (34) is arranged on described first One end of the remote first port of road section (31).
- 6. compressor according to claim 2, it is characterised in that the center-aisle (30) also includes by second end The second channel section (32) that mouth extends to the increasing enthalpy gas supplementing opening (34), the circulation of at least part of second channel section (32) Area is gradually reduced along the second port to the direction of the increasing enthalpy gas supplementing opening (34).
- 7. compressor according to claim 6, it is characterised in thatIn the section parallel to its axis of the center-aisle (30), the side wall of the second channel section (32) is curved； Or,In the section parallel to its axis of the center-aisle (30), the side wall of the second channel section (32) is linear Shape.
- 8. compressor according to claim 6, it is characterised in that the center-aisle (30) also includes being arranged on described the Third channel section (33) between one channel section (31) and the second channel section (32), the circulation of the third channel section (33) Area is consistent, and the increasing enthalpy gas supplementing opening (34) is arranged on the perisporium of the third channel section (33).
- 9. compressor according to any one of claim 1 to 8, it is characterised in that first compression unit (10) includes First cylinder (11), second compression unit (20) include the second cylinder (21), first cylinder (11) and second gas Cylinder (21) is stacked, and the compressor also includes the dividing plate being arranged between first cylinder (11) and second cylinder (21) (80), the center-aisle (30) forms the combination in first cylinder (11), the second cylinder (21) and the dividing plate (80) On body.
- 10. compressor according to claim 1, it is characterised in that the compressor also includes housing unit (52), described Center-aisle (30) is located at the outside of the housing unit (52).
- 11. compressor according to claim 10, it is characterised in that the compressor also includes：First connecting line, it is connected with the first port and extends to first pressure of connection inside the housing unit (52) The exhaust outlet in contracting portion (10)；Second connecting line, it is connected with the second port and extends to second pressure of connection inside the housing unit (52) The air entry in contracting portion (20).
- 12. a kind of air conditioner, it is characterised in that including the compressor any one of claim 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352894.XA CN105864041B (en) | 2016-05-24 | 2016-05-24 | Compressor and there is its air conditioner |
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| CN201610352894.XA CN105864041B (en) | 2016-05-24 | 2016-05-24 | Compressor and there is its air conditioner |
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| CN105864041A CN105864041A (en) | 2016-08-17 |
| CN105864041B true CN105864041B (en) | 2017-11-21 |
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| CN201610352894.XA Expired - Fee Related CN105864041B (en) | 2016-05-24 | 2016-05-24 | Compressor and there is its air conditioner |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107985005B (en) * | 2016-10-26 | 2024-02-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Automobile and air conditioning system thereof |
| CN106989027B (en) | 2017-06-05 | 2019-05-24 | 珠海格力电器股份有限公司 | Multistage compressor |
| CN114811984B (en) * | 2022-04-29 | 2023-05-23 | 珠海格力电器股份有限公司 | Compressor and compressor air conditioning system |
| CN115479027A (en) * | 2022-10-25 | 2022-12-16 | 珠海格力电器股份有限公司 | Two-stage screw compressor and air conditioning unit |
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| CN101275568A (en) * | 2007-03-30 | 2008-10-01 | 富士通将军股份有限公司 | Injectible two-staged rotary compressor and heat pump system |
| CN201363276Y (en) * | 2008-12-31 | 2009-12-16 | 珠海格力电器股份有限公司 | Double-cylinder type two-stage compression rotary compressor |
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| CN103967790A (en) * | 2013-02-04 | 2014-08-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and heat pump system with compressor |
| CN205779699U (en) * | 2016-05-24 | 2016-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and there is its air-conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0828461A (en) * | 1994-07-11 | 1996-01-30 | Toshiba Corp | Scroll expander |
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- 2016-05-24 CN CN201610352894.XA patent/CN105864041B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101275568A (en) * | 2007-03-30 | 2008-10-01 | 富士通将军股份有限公司 | Injectible two-staged rotary compressor and heat pump system |
| CN201363276Y (en) * | 2008-12-31 | 2009-12-16 | 珠海格力电器股份有限公司 | Double-cylinder type two-stage compression rotary compressor |
| CN202250938U (en) * | 2011-10-24 | 2012-05-30 | 珠海格力电器股份有限公司 | Multistage refrigeration compressor and middle air supplement structure thereof |
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| CN105864041A (en) | 2016-08-17 |
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