CN104533790B - Twin-tub rotation-type compressor and refrigerating plant with it - Google Patents
Twin-tub rotation-type compressor and refrigerating plant with it Download PDFInfo
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- CN104533790B CN104533790B CN201410724882.6A CN201410724882A CN104533790B CN 104533790 B CN104533790 B CN 104533790B CN 201410724882 A CN201410724882 A CN 201410724882A CN 104533790 B CN104533790 B CN 104533790B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- 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
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of twin-tub rotation-type compressor and with its refrigerating plant.Twin-tub rotation-type compressor includes: shell, compression mechanism and loop switch component, and shell has exhaust outlet and gas returning port.Compression mechanism is located in shell, and compression mechanism includes: cylinder assembly and base bearing and supplementary bearing.Loop switch component includes input port, high-pressure mouth and delivery outlet, one of conducting in delivery outlet and high-pressure mouth and input port, input port is connected to gas returning port, and high-pressure mouth is connected to the intracorporal space of shell, and delivery outlet is connected to by pressure switching pipe with the slide plate chamber of the second cylinder.Twin-tub rotation-type compressor according to the present invention, it can switch between the operational mode and two cylinders while the operational mode run of a cylinder operation, when the load of refrigerating plant reduces, the quantity of operating cylinder can automatically be reduced, become 1 grade of compression from 2 grades of compressions, so as to take into account comfort and efficiency.
Description
Technical field
The present invention relates to refrigerating fields, more particularly, to a kind of twin-tub rotation-type compressor and with its refrigerating plant.
Background technique
In recent years, warm wind capability improving level-one when as severe cold, and make the performance boost of refrigerating plant, have jet
2 stage compression type rotary compressors of function are concerned, and also have increase to the application of air conditioner and refrigerating plant.Meanwhile it is right
The improvement of APF also proposed strong requirement.Out of this background, the quality-improving and APF for taking into account application product are promoted
Very big project.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, subtracting an object of the present invention is to provide a kind of twin-tub rotation-type compressor in the load of refrigerating plant
Hour, it can automatically reduce the quantity of operating cylinder.
It is another object of the present invention to propose a kind of refrigerating plant with above-mentioned twin-tub rotation-type compressor.
Twin-tub rotation-type compressor according to an embodiment of the present invention, comprising: shell, the shell have exhaust outlet and return-air
Mouthful；Compression mechanism, the compression mechanism are located in the shell, and the compression mechanism includes: cylinder assembly, the cylinder assembly
Including the first cylinder, the second cylinder and middle partition, the middle partition is located between first cylinder and second cylinder, institute
The first compression chamber for limiting in the first cylinder and being connected to the gas returning port is stated, limits the second compression in second cylinder
Chamber, first compression chamber and second compression chamber are connected to by low section of silencer, and slide plate chamber is equipped in second cylinder,
The slide plate is intracavitary equipped with slide plate and the coil spring being connected with the slide plate；Base bearing and supplementary bearing, the base bearing are located at
On the upper surface of first cylinder, the supplementary bearing is located on the lower surface of second cylinder；Loop switch component, it is described
Loop switch component includes input port, high-pressure mouth and delivery outlet, in the delivery outlet and the high-pressure mouth and the input port
One of conducting, the input port are connected to the gas returning port, and the high-pressure mouth is connected to the intracorporal space of the shell, described
Delivery outlet is connected to by pressure switching pipe with the slide plate chamber of second cylinder.
Twin-tub rotation-type compressor according to an embodiment of the present invention, by being equipped with loop switch component, so that twin-tub rotates
Formula compressor can switch between the operational mode and two cylinders while the operational mode run of a cylinder operation, thus
The power capacity for significantly adjusting twin-tub rotation-type compressor can automatically reduce fortune when the load of refrigerating plant reduces
The quantity of rotaring cylinder becomes 1 grade of compression from 2 grades of compressions, so as to take into account comfort and efficiency.
In addition, twin-tub rotation-type compressor according to the above embodiment of the present invention can also have following additional technology special
Sign:
In a specific embodiment of the present invention, cavity is equipped in the middle partition to limit the low section of silencer.
According to a further embodiment of the invention, twin-tub rotation-type compressor further includes that high pressure by-pass prot and high band side are unidirectional
Valve, one end of the high pressure by-pass prot are connected to the low section of silencer, and the high band side check valve is located at the high pressure bypass
The other end in hole to open or close the high pressure by-pass prot, wherein the high pressure by-pass prot be configured in the delivery outlet and
The high band side check valve, which is opened so that in the low section of silencer and the shell, when high-pressure mouth connection is connected to.
Some specific examples according to the present invention, the high pressure by-pass prot run through second cylinder and the supplementary bearing,
The high band side check valve is located at the lower end of the high pressure by-pass prot.
Other specific examples according to the present invention, the high pressure by-pass prot run through first cylinder and the main shaft
It holds, the high band side check valve is located at the upper end of the high pressure by-pass prot.
In further embodiment of the present invention, twin-tub rotation-type compressor further includes injection pipe, and the one of the injection pipe
End is extend into the compression mechanism to be connected to the low section of silencer, the part of the injection pipe being located at outside the shell
It is equipped with the control valve for opening or closing the injection pipe.
Some preferred embodiments according to the present invention move away from the pole at the center of second cylinder in the slide plate
When extreme position, there is gap between the one end of the slide plate being connected with the coil spring and the side wall of the slide plate chamber.
Some specific embodiments according to the present invention, the pressure switching pipe is interior to be equipped with limit plate, and the limit plate is equipped with
One end of perforative stomata in the thickness direction thereof, the coil spring is only against on the limit plate.
Specifically, the loop switch component is loop switch valve, and the loop switch valve includes valve body and hollow cunning
Block limits cavity in the valve body, and the input port and the delivery outlet are located on the same side wall of the valve body, the height
Pressure mouth is located on other side walls of the valve body, and the sliding block is slidably disposed on the side wall of the cavity and in the sliding block
Space be connected to always with the input port.
Refrigerating plant according to an embodiment of the present invention, including twin-tub rotation-type compressor above-mentioned according to the present invention.
Refrigerating plant according to an embodiment of the present invention, by being equipped with above-mentioned twin-tub rotation-type compressor, in refrigerating plant
Load reduce when, can automatically reduce operating cylinder quantity, from 2 grades compression become 1 grade compression, it is easypro so as to take into account
Adaptive and efficiency.
Detailed description of the invention
Fig. 1 shows in the embodiment of the present invention 1, the slide plate chamber of twin-tub rotation-type compressor and the sectional view of loop switch valve
(mode P1)；
Fig. 2 indicates in embodiment 1, the gas flow path of above-mentioned twin-tub rotation-type compressor and the sectional view of loop switch valve
(Mode S 1)；
Fig. 3 indicate in embodiment 1, the sectional view (mode of the slide plate chamber of twin-tub rotation-type compressor and loop switch valve
S1)；
Fig. 4 indicates in the present embodiment 1, the gas flow path of aforementioned twin-tub rotation-type compressor and the sectional view of loop switch valve
(Mode S 1)；
Fig. 5 indicates in the present embodiment 1 that the high pressure of aforementioned twin-tub rotation-type compressor bypasses the periphery design case of means
(Mode S 1)；
Fig. 6 indicates the sectional view (mode for having the twin-tub rotation-type compressor of air injection function in the embodiment of the present invention 2
P2)；
Fig. 7 is indicated with the twin-tub rotation-type compressor and refrigeration cycle diagram (mode in embodiment 2, having air injection function
P2)；
Fig. 8 shows the sectional views (Mode S 2) in same embodiment 2, having the twin-tub rotation-type compressor of air injection function；
Fig. 9 indicates the cases of design of sealing slide plate chamber of the invention, (Mode S 2).
Appended drawing reference:
Compressor 120, motor section 130, cylinder 10a (10b), compression mechanism 140, compression chamber 11a (11b), is lived at shell 2
It fills in 14a (14b), middle partition 6, slide plate 12a (12b), eccentric shaft 30, base bearing 20, supplementary bearing 21, slide plate chamber 15a (15b), slide
Flat spring 19a, coil spring 19b, pressure switch pipe 35, liquid storage device 107, low-voltage tube 5a, low pressure air suction pipe 4, low section of silencer
8, gas vent 24a (24b), exhaust valve 23a (23b), intercommunicating pore 6b, suction hole 9b, high section silencer 25, high pressure by-pass prot 32b,
High band side check valve 31, housing high pressure pipe 33, silencer exhaust passage 26,
Loop switch valve 106, high-pressure mouth 106b, input port 106c, delivery outlet 106d, sliding block 106a,
Intermediate connection tube 7, injection pipe 103, check valve 115,
Exhaust pipe 3, four-way valve 105, indoor heat exchanger 100, expansion valve 102a (102b), gas-liquid separator 108, outdoor are changed
Hot device 110, clearance C, limit plate 37, stomata 35a.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Twin-tub rotation-type compressor 120 according to an embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 9, wherein this pair
Cylinder rotary compressor 120 can be applied in the refrigerating plants such as air conditioner, refrigerating plant.
As shown in figs. 1-9, twin-tub rotation-type compressor 120 according to an embodiment of the present invention, comprising: shell 2, compressor
Structure 140 and loop switch component, wherein shell 2 has exhaust outlet and gas returning port.
Compression mechanism 140 is located in shell 2, and compression mechanism 140 includes: cylinder assembly, base bearing 20 and supplementary bearing 21, gas
Cylinder component includes the first cylinder 10a (as following cylinder 10a), the second cylinder 10b (as following cylinder 10b) and interval
Plate 6, middle partition 6 be located between the first cylinder 10a and the second cylinder 10b, limits in the first cylinder 10a and is connected to gas returning port
It is logical that the second compression chamber 11b, the first compression chamber 11a and the second compression chamber 11b is limited in first compression chamber 11a, the second cylinder 10b
Too low section of silencer 8 is connected to.In specific example of the invention, equipped with cavity to limit low section of silencer 8 in middle partition 6,
Of course, it should be understood that low section of silencer 8 can also be the connecting tube of connection the first compression chamber 11a and the second compression chamber 11b.
Slide plate chamber 15b, the line for being equipped with slide plate 12b in slide plate chamber 15b and being connected with slide plate 12b are equipped in second cylinder 10b
Coil spring 19b.Of course, it should be understood that also being provided with slide plate chamber 15a in the first cylinder 10a, and the slide plate chamber of the first cylinder 10a
The sliding blade spring 19a for also being provided with slide plate 12a in 15a and being connected with slide plate 12a.
Base bearing 20 is located on the upper surface of the first cylinder 10a, and supplementary bearing 21 is located on the lower surface of the second cylinder 10b.
It should be noted that compression mechanism 140 further includes that elements, the eccentric shafts 30 such as eccentric shaft 30, piston 14, high section silencer 25 run through
Base bearing 20, the first cylinder 10a, middle partition 6, the second cylinder 10b and supplementary bearing 21, the first compression chamber 11a and the second compression chamber
Piston 14a (or 14b) of the housing on eccentric shaft 30 is respectively equipped in 11b, eccentric shaft 30 does eccentric rotary with piston,
Slide plate in first cylinder 10a and the second cylinder 10b is only against on piston respectively, and each corresponding slide plate of piston driving is corresponding
Slide plate it is intracavitary move reciprocatingly, wherein the slide plate 12a in the first cylinder 10a can be at the center of neighbouring first cylinder 10a
It is moved back and forth between extreme position and the extreme position at the center far from the first cylinder 10a.Slide plate 12b in second cylinder 10b
It can be past between the extreme position at the center of neighbouring second cylinder 10b and the extreme position at the center far from the second cylinder 10b
Multiple movement.
High section silencer 25 is located on the lower surface of supplementary bearing 21 to limit noise elimination cavity, and noise elimination cavity is vented by silencer
Channel 26 is connected to the space in shell 2, and silencer exhaust passage 26 sequentially passes through base bearing 20, the first cylinder 10a, middle partition
6, the second cylinder 10b and supplementary bearing 21.
It should also be noted that, the first compression chamber 11a is with the gas vent 24a and exhaust being open towards low section of silencer 8
Valve 23a, exhaust valve 23a are used to open or close gas vent 24a, and when exhaust valve 23a is opened, the first compression chamber 11a disappears with low section
Sound device 8 is connected to.There is second compression chamber 11b the gas vent 24b and exhaust valve 23b being open towards supplementary bearing 21, exhaust valve 23b to use
In opening or closing gas vent 24b, the second compression chamber 11b is connected to the noise elimination cavity of high section silencer 25 when exhaust valve 23b is opened.
Loop switch component includes input port 106c, high-pressure mouth 106b and delivery outlet 106d, delivery outlet 106d and high-pressure mouth
One of conducting in 106b and input port 106c, input port 106c are connected to gas returning port, in high-pressure mouth 106b and shell 2
Space connection, delivery outlet 106d switch pipe 35 by pressure and are connected to the slide plate chamber 15b of the second cylinder 10b.It needs to be illustrated
, the space in shell 2 refers to the space being connected to exhaust outlet, then the pressure phase of the pressure in shell 2 and exhaust ports
Together.
Wherein, when in twin-tub rotation-type compressor 120 only have the first cylinder 10a operation when, then the pressure in shell 2 with from
The pressure of the refrigerant of first compression chamber 11a discharge is identical, as the first cylinder 10a and second in twin-tub rotation-type compressor 120
When cylinder 10b is run simultaneously, then the pressure in shell 2 is identical as the pressure of refrigerant being discharged from the second compression chamber 11b.
Specifically, when delivery outlet 106d is connected to high-pressure mouth 106b, then the pressure in the slide plate chamber 15b of the second cylinder 10b
Power is identical as the pressure in shell 2, in this case, the pressure in slide plate chamber 15b and the pressure phase in the second compression chamber 11b
Together, then the piston that the slide plate 12b in the second cylinder 10b can be only against in the second cylinder 10b under the action of coil spring 19b
On the outer surface of 14b, the second cylinder 10b can compress the refrigerant entered in the second compression chamber 11b, thus this
In the case of, the first cylinder 10a and the second cylinder 10b can be respectively at operating status, by using the first cylinder 10a and second
Cylinder 10b carries out 2 grades of compressions, as operational mode P1 (P2).
When delivery outlet 106d is connected to input port 106c, then the pressure and return-air in the slide plate chamber 15b of the second cylinder 10b
Low pressure at mouthful is identical, and in this case, the pressure in the second compression chamber 11b is greater than the slide plate chamber 15b of the second cylinder 10b
, that is, there is pressure difference in interior pressure, so that coil spring 19b is compressed under the action of pressure difference, in the second cylinder 10b
Piston 14b in slide plate 12b and the second cylinder 10b is detached from, and the second cylinder 10b is in cutting-out cylinder state, thus in this case,
First cylinder 10a operation, the second cylinder 10b cutting-out cylinder carry out 1 grade of compression, as operational mode S1 only with the first cylinder 10a
(S2)。
In short, being made by making one of conducting in delivery outlet 106d and input port 106c and high-pressure mouth 106b
The pressure obtained in the slide plate chamber 15b of the second cylinder 10b switches between high pressure and low pressure, so that the second cylinder 10b is being transported
Switch between capable and cutting-out cylinder mode, and then realizes twin-tub rotation-type compressor 120 in operational mode P1 (P2) and operational mode S1
(S2) switch between.
Twin-tub rotation-type compressor 120 according to an embodiment of the present invention, by being equipped with loop switch component, so that twin-tub revolves
The operational mode P1 that rotary compressor 120 can be run simultaneously in the operational mode S1 (S2) and two cylinders that a cylinder is run
(P2) switch between, to significantly adjust the power capacity of twin-tub rotation-type compressor 120, reduce in the load of refrigerating plant
When, the quantity of operating cylinder can be automatically reduced, becomes 1 grade of compression from 2 grades of compressions, so as to take into account comfort and effect
Rate.
In some embodiments of the invention, twin-tub rotation-type compressor 120 further includes high pressure by-pass prot 32b and high band side
Check valve 31, one end of high pressure by-pass prot 32b are connected to low section of silencer 8, and high band side check valve 31 is located at high pressure by-pass prot 32b
The other end to open or close high pressure by-pass prot 32b, mesohigh by-pass prot 32b is configured in delivery outlet 106d and input
High band side check valve 31, which is opened so that in low section of silencer 8 and shell 2, when mouth 106c connection is connected to.
In other words, when delivery outlet 106d is connected to input port 106c, i.e. the first cylinder 10a is in operating status, second
When cylinder 10b is in cutting-out cylinder state, high band side check valve 31 opens high pressure by-pass prot 32b, the compression being discharged from the first cylinder 10a
Refrigerant is drained into low section of silencer 8, and is directly discharged into from low section of silencer 8 by high pressure by-pass prot 32b into shell 2, low
Compressed gas in section silencer 8 is not necessarily to the gas vent 24b big by the second compression chamber 11b and resistance, so as to subtract
It is small because overcompression caused by exhaust resistance is lost.
When delivery outlet 106d is connected with high-pressure mouth 106b, high band side check valve 31 closes high pressure by-pass prot 32b, enters
High pressure refrigerant in the noise elimination cavity of high section silencer 25 is drained into shell 2 by silencer exhaust passage 26.
As shown in Figure 2, Figure 3 and Figure 4, in some embodiments of the invention, high pressure by-pass prot 32b runs through the second cylinder
10b and supplementary bearing 21, high band side check valve 31 are located at the lower end of high pressure by-pass prot 32b.In delivery outlet 106d and high-pressure mouth 106b
When conducting, the first cylinder 10a and the second cylinder 10b are in operating status, and the pressure in the noise elimination cavity of high section silencer 25 is big
Pressure in low section of silencer 8, therefore high band side check valve 31 is in the state for closing high pressure by-pass prot 32b.Work as delivery outlet
When 106d is connected with input port 106c, the first cylinder 10a operation, the second cylinder 10b cutting-out cylinder, the pressure in low section of silencer 8 is about
Equal to the pressure in high section silencer 25, under the action of compression refrigerant, high band side check valve 31 opens high pressure by-pass prot 32b.
As shown in figure 5, high pressure by-pass prot 32b runs through the first cylinder 10a and main shaft in other embodiments of the invention
20 are held, high band side check valve 31 is located at the upper end of high pressure by-pass prot 32b.When delivery outlet 106d is connected with high-pressure mouth 106b, the
One cylinder 10a and the second cylinder 10b are in operating status, and the pressure in shell 2 is greater than the pressure in low section of silencer 8, because
This high band side check valve 31 is in the state for closing high pressure by-pass prot 32b.When delivery outlet 106d is connected with input port 106c, the
One cylinder 10a operation, the second cylinder 10b cutting-out cylinder, the pressure in low section of silencer 8 are approximately equal to the pressure in shell 2, cold compressing
Under the action of matchmaker, high band side check valve 31 opens high pressure by-pass prot 32b.
In some embodiments of the invention, twin-tub rotation-type compressor 120 further includes injection pipe 103, injection pipe 103
One end is extend into compression mechanism 140 to be connected to low section of silencer 8, and the part of injection pipe 103 being located at outside shell 2 is equipped with
Open or close the control valve of injection pipe 103.So as to improve the efficiency of air conditioner, refrigerating plant, simultaneously because high compression
Heating or cryogenic temperature when will not reduce severe cold than operating.
According to some embodiments of the present invention, the extreme position at the center of the second cylinder 10b is moved away from slide plate 12b
When, there is clearance C, so as to keep away between the one end of slide plate 12b being connected with coil spring 19b and the side wall of slide plate chamber 15b
Exempt from the sidewall impact because of slide plate 12b and slide plate chamber 15b due to generates impulsive sound and slide plate 12b is caused to damage.
According to some embodiments of the present invention, limit plate 37 is equipped in pressure switching pipe 35, limit plate 37 is equipped in its thickness
Perforative stomata 35a on direction is spent, one end of coil spring 19b is only against on limit plate 37.Of course, it should be understood that coil
One end of spring 19b, which can also be, to be only against on the side wall of slide plate chamber 15b.
According to a particular embodiment of the invention, loop switch component is loop switch valve 106, and loop switch valve 106 includes
Valve body and hollow sliding block 106a limit cavity in valve body, and input port 106c and delivery outlet 106d are located at the same side of valve body
On wall, high-pressure mouth 106b is located on other side walls of valve body, and sliding block 106a is slidably disposed on the side wall of cavity and sliding block
Space in 106a is connected to input port 106c always.Specifically, the space in sliding block 106a always in cavity other are empty
Between be spaced apart, the pressure in sliding block 106a is always low pressure, and the pressure outside sliding block 106a is high pressure, thus in high pressure and low pressure
Under differential pressure action, sliding block 106a can be pressed on the sidewalls of the cavities, sliding block 106a is avoided to fall from the side wall of cavity.Work as sliding block
When space in 106a is only connected to input port 106c, then high-pressure mouth 106b is connected to delivery outlet 106d, when in sliding block 106a
When space is connected to input port 106c and delivery outlet 106d simultaneously, then input port 106c is connected to delivery outlet 106d.So that
The structure of loop switch component is simple.
Refrigerating plant according to an embodiment of the present invention, including twin-tub rotation-type compressor according to the above embodiment of the present invention
120。
As shown in fig. 7, refrigerating plant further includes that indoor heat exchanger 100, four-way valve 105, gas-liquid separator 108, outdoor are changed
Hot device 110 and two expansion valve 102a (102b), twin-tub rotation-type compressor 120 further include liquid storage device 107.Four-way valve 105 wraps
Include four valve ports, four valve ports of four-way valve 105 respectively with liquid storage device 107, exhaust outlet, indoor heat exchanger 100 and outdoor heat exchange
Device 110 is connected, and gas-liquid separator 108, expansion valve 102a series connection are in series between indoor heat exchanger 100 and outdoor heat exchanger 110
Between indoor heat exchanger 100 and the entrance of gas-liquid separator 108, expansion valve 102b is connected on the liquid of gas-liquid separator 108
Between outlet and outdoor heat exchanger 110, the gas vent of gas-liquid separator 108 is connected with injection pipe 103.
Refrigerating plant according to an embodiment of the present invention is filled by being equipped with above-mentioned twin-tub rotation-type compressor 120 in refrigeration
When the load set reduces, the quantity of operating cylinder can be automatically reduced, becomes 1 grade of compression from 2 grades of compressions, so as to take into account
Comfort and efficiency.
The signal of the twin-tub rotation-type compressor of several embodiments according to the present invention is described in detail below with reference to Fig. 1-Fig. 9
Figure.
Embodiment 1:
Fig. 1 and Fig. 2 indicates that the twin-tub rotation-type compressor 120 of 2 grades of compressions and the inside of loop switch valve 106 can be carried out
Construction.Mainly: Fig. 1 shows the section of action part, Fig. 2 indicates the section of gas flow path.Twin-tub rotation-type compressor 120
The inside of seal casinghousing 2 has the motor section 130 of the frequency conversion type of variable rotational speed, and it is gentle that its underpart configuration has cylinder 10a
The compression mechanism 140 of cylinder 10b.
The characteristics of twin-tub rotation-type compressor 120 in embodiment 1 is the loop switch valve having by the outside of shell 2
106, have the mode P1 that the Mode S 1 of cutting-out cylinder operation is carried out to cylinder 10a in operation, releases cutting-out cylinder operation.As circuit
Switching valve 106 uses the four-way valve or triple valve utilized in air conditioner etc..In addition, Fig. 1 and Fig. 2 is mode P1.
Compression mechanism 140 is by the cylinder 10a of low band side compression unit and cylinder 10b, these compression chambers of high band side compression unit
It is the middle partition 6 that is configured between the piston 14a having and piston 14b, 2 cylinders in 11a and compression chamber 11b, outer with each piston
It abuts the slide plate 12a that moves back and forth and slide plate 12b in week, is the eccentric shaft 30 that makes two pistons while carrying out off-centre operation, right
Eccentric shaft 30 carries out the base bearing 20 for sliding support and being fixed on cylinder 10a, carries out sliding support and fixation to eccentric shaft 30
The equal composition of supplementary bearing 21 on cylinder 10b.In addition, the discharge capacity of compression chamber 11a is bigger than the discharge capacity of compression chamber 11b.In addition, implementing
In example 1, low band side compression unit is in 20 side of base bearing, and high band side compression unit is configured in 21 side of supplementary bearing, but these compression units is upper
Lower configuration can overturn.
The slide plate chamber 15a having in cylinder 10a has slide plate 12a and by the apex of slide plate 12a to 2 split shed of shell
It is pressed on the sliding blade spring 19a of the periphery of piston 14a.The upper and lower opening portion for the slide plate chamber 15b having in cylinder 10b, by interval
Plate 6 and supplementary bearing 21 seal, and have slide plate 12b in slide plate chamber 15b and the apex of slide plate 12b is pressed in the outer of piston 14b
Coil spring 19b on week.In addition the pressure switching pipe 35 being open since the outside of shell 2 to slide plate chamber 15b connects slide plate
The rear end of chamber 15b.
The low-voltage tube 5a of connection liquid storage device 107 is connected to the low pressure air suction pipe 4 of the side of cylinder 10a.In middle partition 6, tool
For from compression chamber 11a to low section of silencer 8 of the gas passage of compression chamber 11b.In addition, having in low section of silencer 8 to compression chamber
The gas vent 24a and exhaust valve 23a of 11a opening.
As shown in Figure 2, the suction hole 9b of the intercommunicating pore 6b and cylinder 10b of low section of silencer 8 are connected to.Have in supplementary bearing 21
Gas vent 24b, exhaust valve 23b, the high section silencer 25 for covering them to compression chamber 11b opening.Also, has and disappear to low section
Sound device 8 and the high pressure by-pass prot 32b of high section silencer 25 opening, high band side check valve 31 that this is switched.In addition, low section
The connecting tube that the suction hole 9b that silencer 8 can be the gas vent 24a and cylinder 10b of cylinder 10a is connected to can also be with.
Loop switch valve 106 simplifies the construction of triple valve, as shown in the figure.It is high that loop switch valve 106 has connection shell
The high-pressure mouth 106b of pressure pipe 33, the input port 106c for connecting low-voltage tube 5a, connection pressure switch the delivery outlet 106d of pipe 35.High pressure
The pressure of mouthful 106b usually with the pressure of shell 2 (Pd1 or Pd2) quite, the pressure of input port 106c usually with liquid storage device 107
Pressure low-pressure (Ps) it is suitable.
The sliding block 106a that has inside loop switch valve 106, it can move up and down with operation mode switching, connection output
The pressure of the slide plate chamber 15a of mouth 106d free switching between the pressure of shell 2 and the pressure of liquid storage device 107.In addition, sliding block
The internal pressure of 106a is usually that Ps, its external pressure are usually suitable with the pressure of shell 2.
In Fig. 1, delivery outlet 106d is connected to high-pressure mouth 106b, so the pressure of the pressure of slide plate chamber 15b and shell 2
(Pd2) quite.Therefore, compression chamber 11a and compression chamber 11b persistently carries out the state of compression operation.The operation is known as mode P1
(Fig. 1).On the other hand, after the pressure of slide plate chamber 15a is switched to low pressure (Ps), compression chamber 11b is that cutting-out cylinder runs (uncompressed fortune
Row).The mode that compression chamber 11a is compression operation, compression chamber 11b is progress cutting-out cylinder operation is S1 (Fig. 3).
It is illustrated according to Fig. 1 and Fig. 2, to the air-flow of mode P1.The low-pressure gas of liquid storage device 107 passes through from low-voltage tube 5a
Low pressure suction line 4, which is flowed into compression chamber 11a, is discharged in low section of silencer 8 (pressure is Pd1) by compression.Thereafter, it is discharged
Gas is flowed into compression chamber 11b through too low section of silencer 8 to be compressed again, is discharged in high section silencer 25.Moreover, passing through
Silencer exhaust passage 26 is discharged to the inside of shell 2.The pressure at expulsion is Pd2.The high pressure gas is discharged to system from exhaust pipe 3
In SAPMAC method device (Fig. 7).As described above, 2 grades of compressions are set up in mode P1.
In mode P1, by the air-breathing and scavenging action of compression chamber 11b, the pressure decline of low section of silencer 8, high section is eliminated the noise
The pressure increase of device 25.By the pressure difference, high band side check valve 31 closes high pressure by-pass prot 32b (Fig. 2).Therefore, high pressure bypasses
Hole 32b and high band side check valve 31 are not necessarily in mode P1, but are necessary function in aftermentioned Mode S 1.
Fig. 3 indicates that slave pattern P1 is switched to the moment of the operating of Mode S 1.That is the sliding block 106a switching of loop switch valve 106
To downside, delivery outlet 106d is switched to the state of low pressure (Ps).In Mode S 1, the pressure of slide plate chamber 15b be switched to low pressure (Ps),
So the pressure of the pressure (Ps) of the pressure of inspiration(Pi) (suitable with the pressure Pd1 of low section of silencer 8) of compression chamber 11b and slide plate chamber 15b
Poor (Δ P) is sufficiently big.Therefore, the slide plate 12b and piston 14b of rotation is detached from, and compresses sliding blade spring 19b, quiet in slide plate chamber 15b
Only.Therefore, compression chamber 11b is cutting-out cylinder operation, and Mode S 1 is set up.
It is illustrated according to air-flow of the Fig. 4 to Mode S 1.The low-pressure gas of liquid storage device 107 is inhaled by low-voltage tube 5a and low pressure
Tracheae 4 is discharged in low section of silencer 8 in compression chamber 11a by compression.Thereafter, high pressure gas by high pressure by-pass prot 32b from
The high band side check valve 31 of opening is flowed out to high section silencer 25, is discharged from silencer exhaust passage 26 to the inside of shell 2.Cause
This, the pressure of shell 2 is Pd1.
Mode S 1 as noted previously, as high band side check valve 31 effect, the high pressure gas of low section of silencer 8 need not lead to
The overcompression chamber 11b and big gas vent 24b of resistance.Therefore, because the loss of overcompression caused by exhaust resistance can reduce.
In addition, as shown in Figure 5, high pressure by-pass prot 32b can be the channel to low section of silencer 8 and the opening of shell 2.This is replaced
In generation design, it is vented directly in shell 2 from compression chamber 11a to the high pressure gas that low section of silencer 8 is discharged.In addition, base bearing
The 2nd high section silencer can be added in 20.
Mode S 1 is 1 grade of the single cylinder compression of only cylinder 10a, so while the reduction of gas inspiratory capacity, refrigerating capacity can subtract
Few, compression ratio (Pd1/Ps) can also be reduced.Power consumption can also be reduced simultaneously.The relevant refrigerating capacity of Mode S 1 is reduced, if compression
If the revolving speed of machine is certain, mainly determined by the displacement rate of compression chamber 11a and compression chamber 11b, air-breathing and pressure at expulsion etc..
Mode S 1 to mode P1 switching method in terms of, so that sliding block 106a is returned to mode P1 can.At this moment, slide plate chamber
The pressure of 15b can be switched to Pd1 from Ps.On the other hand, the pressure of the compression chamber 11b in cutting-out cylinder compression is Pd1, so slide plate
The pressure of the first end side of 12b and the pressure difference (Δ P) of its back side are zero.
But the active force of the sliding blade spring 19b due to compression, slide plate 12b and leave the work that slide plate chamber 15b dallies
The periphery of plug 14b, which abuts, to be followed.Therefore, the cutting-out cylinder operation of compression chamber 11b releases, is switched to the mode P1 of 2 grades of compressions.In this way,
The present invention can freely be switched by the operation of loop switch valve 106.In addition, running mode switch time be 1 second with
It is interior.
Next, to pressure difference (Δ P) be zero compressor starting and starting after operating status be illustrated.Use mode
If S1 starts, cylinder 10a and cylinder 10b are since the effect of sliding blade spring starts compression operation.It therefore, has been just mould after starting
Formula P1.Thereafter, pressure difference (Δ P) increases after low-pressure lateral pressure decline, housing pressure (high-pressure side) rise, so, cylinder 10b is automatic
It is switched to Mode S 1.Thereafter, it is remained in operation with Mode S 1.In addition, slave pattern S1 is to mode P1's if pressure difference (Δ P) increases
Switching carries out at any time.
But if starting if it is Mode S 1, centre has moment slave pattern P1 to be switched to Mode S 1.At this moment, due to pressure
The active force of poor (Δ P) piston 14b breakaway force and sliding blade spring 19b are being balance in a flash, so slide plate 12b and piston
The second cosmic velocity of 14b can slow down, and due to contacting between them again, may generate impulsive sound.
On the other hand, if mode P1 is started, cylinder 10a and cylinder 10b are since the effect of sliding blade spring starts
Compression operation.Thereafter, even if Δ P has increase, the pressure of slide plate chamber 15b is usually high-pressure side, so after Discontinuous Conduction mode P.Therefore, mould
If formula P1 starts, it will not automatically be switched to Mode S 1.In addition, Δ P increase if slave pattern P1 to Mode S 1 switching with
When be likely to.As a result, compressor is started with mode P1, later, switching to Mode S 1 if necessary is very wise move.
Slave pattern P1 is switched to increase decision of the stand-by time due to pressure difference (Δ P) of Mode S 1, but air conditioner after starting
If, since starting in the range of about 10~30 seconds.The stand-by time is according to aftermentioned slide plate 12b and sliding blade spring 19b
Design can generate variation.
In operation between Mode S 1 and mode P1, freely mode can be switched over, using the feature, according to system
The operating load of SAPMAC method system or the operating load of compressor can easily automatically control mode.For example, empty
If tune, can (1) more comfortable air conditioner surroundings can be created.Furthermore it is possible to avoid extra operation, improve APF.(2) i.e.
Operating load is set to have big variation, mode can be switched with moment, so the automatic control of refrigeration cycle is easier.It in addition can be with
Operation by adapting to load improves the reliability of compressor.
Next, the alternative means as loop switch valve 106, utilizes institute in the method and heat pump assembly of two-way valve
The method etc. of four-way valve is used in the system switching needed, can there is several methods in main scope of the invention.In addition, utilizing high pressure
The pressure in circuit and low tension loop, pattern switching means are not limited by announcement range of the invention.
Embodiment 2:
Additional air injection function in the 2 grades of rotary compressors 120 disclosed in embodiment 1 improves air conditioner, refrigerating plant
Efficiency, in addition, due to when high compression ratio operating will not reduce severe cold heating or cryogenic temperature, it is very good.
Embodiment 2 shown in fig. 6 connects in the intermediate connection tube 7 being open to low section of silencer 8 from the outside of shell 2
Injection pipe 103.In addition, the additional check valve 115 in injection pipe 103.Twin-tub rotation-type compressor 120 and loop switch valve
106 connection is in the same manner as in Example 1.In addition, whens using automatic expansion valve or two-way valve etc. in spray circuits, Ke Yizuo
For the substitution of check valve 115.
According to Fig. 6,2 grades of rotary compressors 120 for having air injection function are illustrated.The slide plate chamber 15b of cylinder 10b
It is connected to shell 2 (pressure Pd2), so cylinder 10b is in compression operation.In addition, cylinder 10a is also the institute in compression operation
It is to set up with 2 grades of compressions.
Moreover, check valve 115 is opened, jet refrigerant injects low section of silencer 8.Jet refrigerant in low section of silencer 8 with
Exhaust (pressure Pd1) mixing since cylinder 10a, is inhaled into cylinder 10b.The high pressure gas come out from cylinder 10b passes through
High section silencer 25 is discharged in shell 2.The pressure is Pd2.In addition, the mode is known as mode P2.Here, whiff pressure is Pi
If, it is the relationship of Ps < Pd1 < Pi < Pd2 in mode P2.
The refrigeration cycle (heating mode) of air conditioner in Fig. 7 intermediate scheme P2.The high pressure gas being discharged from exhaust pipe 3
(pressure Pd2) is subtracted by expansion valve 102a thereafter by becoming condensation refrigerant in four-way valve 105 indoors heat exchanger 100
Pressure, be separated into gas-liquid separator 108 in the gas coolant (pressure Pi) and liquid coolant pressed.
By spraying gas coolant in twin-tub rotation-type compressor 120, increases overcooled liquid coolant, further lead to
Expansion valve 102b decompression is crossed, becomes low-pressure gas refrigerant (pressure Ps), thereafter in outdoor heat exchanger 110, passes through 105 He of four-way valve
Liquid storage device 107 reaches the low pressure suction line 4 for being connected to cylinder 10a.
Fig. 8 shows the operation for passing through loop switch valve 106, slave pattern P2 is switched to the moment of Mode S 2.At this moment, slide plate chamber
The pressure of 15b is low pressure (Ps), so cylinder 10b is cutting-out cylinder operating.On the other hand, it is operated by the cutting-out cylinder of cylinder 10b, jet
Pressure (Pi) is lower than the pressure (Pd1) of low section of silencer 8.Therefore, the valve of check valve 115 is closed.That is, the circuit of injection pipe 103
Separated automatically by Mode S 2.In this way, the operation of compression operation and the partition of jet circuit of only cylinder 10a is called Mode S 2.
Next, slave pattern S2 is switched to the method aspect of mode P2, loop switch valve 106 is returned to the position of mode P2
Setting can (Fig. 6).At this moment, the pressure of slide plate chamber 15b from Ps become with the comparable Pd1 of the pressure of shell 2, so, slide plate
The pressure of chamber 15b and the running compression chamber 11b of cutting-out cylinder are all Pd1.That is, the pressure difference (Δ P) of slide plate chamber 15b and compression chamber 11b
It is zero.
Therefore, slide plate 12b static in slide plate chamber 15b is instantaneously flown out due to the active force of the sliding blade spring 19b to stop,
It is abutted with the periphery of the piston 14b in operating.Therefore, the cutting-out cylinder operating of cylinder 10b is released from, and is switched to mode P2.Thereafter, shell
The pressure of body 2 and slide plate chamber 15b can rise, so Δ P increases, go in the operation of stable mode P2.
The phenomenon that slave pattern S2 is switched to after mode P2, Δ P=0, releases cutting-out cylinder operation, and has to shell nozzle
The starting of the common rotary compressor of slide plate chamber is similar.That is, even if Δ P=0, the active force due to sliding blade spring, slide plate
Piston can be followed, compression is started.
The moment of Mode S 2 is switched to from above-mentioned mode P2, the back side of slide plate 12b and the aft bulkhead of slide plate chamber 15b impact
If, it is not only impulsive sound, the back of slide plate 12b can have the project of damage.As the solution countermeasure of this project, Fig. 9 is in cunning
It is static on the sliding blade spring 19b that piece 12b is compressed.That is, between due to being formed between the rear end of slide plate 12b and the wall of slide plate chamber 15b
Gap C, impact can be avoided.
In design shown in Fig. 9, indentation is fixed in the internal diameter of the pressure switching pipe 35 of the aft bulkhead of slide plate chamber 15b and is inserted into
A part of sliding blade spring 19b, its compression end are static due to limit plate 37.Stomata 35a that the center of limit plate 37 has, into
The pressure of row slide plate chamber 15b switches.
In this way, by being inserted into the longer coil bullet of a part of sliding blade spring 19b, overall length in the internal diameter that pressure switches pipe 35
When spring pressing, the almost all of length thereof that compresses can be accommodated in the internal diameter of pressure switching pipe 35.Moreover, limit
In the design of position plate 37, before indentation pressure switching pipe 35, limit plate 37 is formed in pressure switching pipe 35 in advance.Or
Sliding blade spring 19b, subsequent also bushing nut are switched the open end of pipe 35 after pressure switching pipe 35 is pressed by person from pressure
Indentation.
Next in the season that air conditioner operating load becomes smaller perhaps owl run etc. in Mode S 1 or Mode S 2
Operation in, Pd1 becomes smaller always, and Ps is got higher, Δ P has reduction.As a result, carrying out the cylinder 10b of cutting-out cylinder operation, may releasing
Cutting-out cylinder operation is switched to the 2 grades of compressions operation (mode P1 or mode P2) for being originally not intended to carry out.
As its countermeasure means, need to reduce the active force of sliding blade spring 19b.As the means, reduce the matter of slide plate 12b
It measures more effective.It is superior light as the material of slide plate 12b, such as using ceramic material (Al2O3, specific gravity 3.9) uniform wearability
Profile material can also be with.
The present invention, not still air-conditioning, and refrigerating plant and water heater etc. are on the way can also be with extensive utilization.In addition, mesh
The component and manufacturing equipment of preceding twin-tub rotation-type compressor can also borrow.
The twin-tub rotation-type compressor 120 of specific embodiment has the advantages that according to the present invention
(1) if air conditioner load reduces, the quantity of operating cylinder can be automatically reduced, becomes 1 grade of pressure from 2 grades of compressions
Contracting.In addition, if necessary, jet can be interrupted.Therefore, comfort and efficiency can be taken into account.
(2) pass through and compressed with 2 grades of compressions and 1 grade, can significantly adjust the power capacity of compressor.
(3) high-performance and cost and manufacturing are superior.
(4) wide as 2 grades of compressions of volume controlled or 2 grades of compressions of jet mode, use scope.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of twin-tub rotation-type compressor characterized by comprising
Shell, the shell have exhaust outlet and gas returning port；
Compression mechanism, the compression mechanism are located in the shell, and the compression mechanism includes:
Cylinder assembly, the cylinder assembly include the first cylinder, the second cylinder and middle partition, and the middle partition is located at described first
Between cylinder and second cylinder, the first compression chamber being connected to the gas returning port is limited in first cylinder, it is described
The second compression chamber is limited in second cylinder, first compression chamber is connected to second compression chamber by low section of silencer,
Slide plate chamber is equipped in second cylinder, the slide plate is intracavitary equipped with slide plate and the coil spring being connected with the slide plate；
Base bearing and supplementary bearing, the base bearing are located on the upper surface of first cylinder, and the supplementary bearing is located at described
On the lower surface of two cylinders；
Loop switch component, the loop switch component include input port, high-pressure mouth and delivery outlet, the delivery outlet and the height
Press one of conducting in mouth and the input port, the input port is connected to the gas returning port, the high-pressure mouth with it is described
The intracorporal space connection of shell, the delivery outlet is connected to by pressure switching pipe with the slide plate chamber of second cylinder, described
When first cylinder and second cylinder are run, the refrigerant being discharged from first cylinder is drained into second by low section of silencer
It is compressed in cylinder；
High pressure by-pass prot and high band side check valve, one end of the high pressure by-pass prot are connected to the low section of silencer, the height
Section side check valve is located at the other end of the high pressure by-pass prot to open or close the high pressure by-pass prot, wherein by the high pressure
Through-hole is configured to the high band side check valve when the delivery outlet is connected to the input port and is opened so that described low section
It is connected in silencer and the shell.
2. twin-tub rotation-type compressor according to claim 1, which is characterized in that be equipped with cavity in the middle partition to limit
Make the low section of silencer.
3. twin-tub rotation-type compressor according to claim 1, which is characterized in that the high pressure by-pass prot is through described the
Two cylinders and the supplementary bearing, the high band side check valve are located at the lower end of the high pressure by-pass prot.
4. twin-tub rotation-type compressor according to claim 1, which is characterized in that the high pressure by-pass prot is through described the
One cylinder and the base bearing, the high band side check valve are located at the upper end of the high pressure by-pass prot.
5. twin-tub rotation-type compressor according to claim 1, which is characterized in that it further include injection pipe, the injection pipe
One end extend into the compression mechanism be connected to the low section of silencer, the injection pipe outside the shell
Part is equipped with the control valve for opening or closing the injection pipe.
6. twin-tub rotation-type compressor according to claim 1, which is characterized in that moved away from the slide plate described
When the extreme position at the center of the second cylinder, the side of the one end of the slide plate being connected with the coil spring and the slide plate chamber
There is gap between wall.
7. twin-tub rotation-type compressor according to claim 1, which is characterized in that be equipped with limit in the pressure switching pipe
Plate, the limit plate are equipped with perforative stomata in the thickness direction thereof, and one end of the coil spring is only against the limit plate
On.
8. twin-tub rotation-type compressor according to claim 1, which is characterized in that the loop switch component is cut for circuit
Change valve, the loop switch valve includes valve body and hollow sliding block, limits cavity in the valve body, the input port and described
Delivery outlet is located on the same side wall of the valve body, and the high-pressure mouth is located on other side walls of the valve body, and the sliding block can
The space on the side wall of the cavity and in the sliding block is slidably disposed within to be connected to the input port always.
9. a kind of refrigerating plant, which is characterized in that compressed including twin-tub rotation-type according to claim 1 to 8
Machine.
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| CN105805014B (en) * | 2016-03-10 | 2018-06-15 | 广东美芝制冷设备有限公司 | Multi-cylinder rotation compressor |
| CN107387414B (en) * | 2017-07-31 | 2021-01-26 | 广东美芝制冷设备有限公司 | Compression assembly and multi-cylinder rotary compressor |
| CN107476978B (en) * | 2017-08-28 | 2024-02-13 | 广东美芝制冷设备有限公司 | Rotary compressor and air conditioning system with same |
| CN108626121A (en) * | 2018-05-31 | 2018-10-09 | 安徽美芝精密制造有限公司 | Compressor and refrigerating plant with it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993552A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof |
| CN101835987A (en) * | 2007-11-09 | 2010-09-15 | Lg电子株式会社 | 2 stage rotary compressor |
| CN102472281A (en) * | 2009-09-11 | 2012-05-23 | 东芝开利株式会社 | Multiple cylinder rotary compressor and refrigeration cycle device |
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| CN202851355U (en) * | 2012-08-21 | 2013-04-03 | 珠海凌达压缩机有限公司 | Single-stage and double-stage interchangeable double-cylinder compressor |
| JP2014145318A (en) * | 2013-01-29 | 2014-08-14 | Fujitsu General Ltd | Rotary compressor |
| CN204312346U (en) * | 2014-12-03 | 2015-05-06 | 广东美芝制冷设备有限公司 | Twin-tub rotation-type compressor and there is its refrigeration plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993552A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof |
| CN101835987A (en) * | 2007-11-09 | 2010-09-15 | Lg电子株式会社 | 2 stage rotary compressor |
| CN102472281A (en) * | 2009-09-11 | 2012-05-23 | 东芝开利株式会社 | Multiple cylinder rotary compressor and refrigeration cycle device |
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