CN104454528A - Double-cylinder rotary compressor and refrigerating device with same - Google Patents
Double-cylinder rotary compressor and refrigerating device with same Download PDFInfo
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- CN104454528A CN104454528A CN201410724718.5A CN201410724718A CN104454528A CN 104454528 A CN104454528 A CN 104454528A CN 201410724718 A CN201410724718 A CN 201410724718A CN 104454528 A CN104454528 A CN 104454528A
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- communicated
- slide plate
- compression chamber
- twin
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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
- F04C18/3562—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 the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—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 the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
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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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
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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
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
The invention discloses a double-cylinder rotary compressor and a refrigerating device with the same. The double-cylinder rotary compressor comprises a shell, a compressing mechanism and a loop switching component, wherein the shell is provided with an air outlet and a return air inlet; the compressing mechanism comprises a first air cylinder, a second air cylinder and an intermediate clapboard; the first air cylinder is provided with a first compression chamber and a first slip sheet chamber; the second air cylinder is provided with a second compression chamber and a second slip sheet chamber; a first slip sheet and a magnet are arranged in the first slip sheet chamber; the first compression chamber is communicated with the return air inlet; the second slip sheet chamber is communicated with space in the shell; the loop switching component comprises an input port, an output port and a high pressure port; the output port is communicated with one of the input port and the high pressure port; the input port is communicated with the return air inlet; the output port is communicated with the first slip sheet chamber; the high pressure port is communicated with the space in the shell. The double-cylinder rotary compressor disclosed by the invention can switch between an operation mode in which one air cylinder operates and an operation mode in which the two air cylinders operate at the same time.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of twin-tub rotation-type compressor and there is its refrigeration plant.
Background technique
In recent years, as warm braw capability improving one-level during severe cold, and make the performance boost of refrigeration plant, the 2 stage compression type rotary compressors possessing air injection function receive much concern, and also have increase to the application of air conditioner and refrigeration plant.Meanwhile, strong requirement be it is also proposed to the improvement of APF.For such background, the quality-improving and the APF lifting that take into account application product are very large problems.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, the present invention proposes a kind of twin-tub rotation-type compressor, switches between the operating mode that the operating mode can run and two cylinders run simultaneously at cylinder.
The present invention proposes a kind of refrigeration plant with above-mentioned twin-tub rotation-type compressor.
According to the twin-tub rotation-type compressor of the embodiment of the present invention, comprising: housing, described housing has relief opening and gas returning port, compressing mechanism, described compressing mechanism is located in described housing, described compressing mechanism comprises the first cylinder, second cylinder and central diaphragm, described central diaphragm is located between described first cylinder and described second cylinder, described first cylinder has the first compression chamber and the first slide plate chamber, described second cylinder has the second compression chamber and the second slide plate chamber, described first compression chamber is communicated with by low section of silencing apparatus with described second compression chamber, the first slide plate and magnet is provided with in described first slide plate chamber, be provided with the second slide plate in described second slide plate chamber and be only against the coil spring on described second slide plate, described first compression chamber is communicated with gas returning port, described second slide plate chamber is communicated with the space in described housing, loop switch assembly, described loop switch assembly comprises inlet opening, delivery outlet and high-pressure mouth, described delivery outlet is communicated with one of them in described high-pressure mouth with described inlet opening, described inlet opening is communicated with gas returning port, described delivery outlet is communicated with described first slide plate chamber, and described high-pressure mouth is communicated with the space in described housing.
According to the twin-tub rotation-type compressor of the embodiment of the present invention, by being provided with loop switch assembly, switch between the operating mode that the operating mode that twin-tub rotation-type compressor can be run at cylinder and two cylinders run simultaneously, thus significantly adjust the power capacity of twin-tub rotation-type compressor, when the load of refrigeration plant reduces, automatically can reduce the quantity of running cylinder, become 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
In some embodiments of the invention, cavity is provided with in described central diaphragm to limit described low section of silencing apparatus.
In some embodiments of the invention, be provided with in described first compression chamber towards the low pressure by-pass hole of low section of silencing apparatus opening, described low pressure by-pass hole is provided with low band side one-way valve, and described low band side one-way valve is formed at from described first compression chamber to one-way conduction the direction of described low section of silencing apparatus.
In further embodiment of the present invention, twin-tub rotation-type compressor also comprises injection pipe, and one end of described injection pipe is communicated with described low section of silencing apparatus, and described injection pipe is provided with the control valve opening or closing described injection pipe.
In some embodiments of the invention, described loop switch assembly is loop switch valve, described loop switch valve comprises the slide block of valve body and hollow, cavity is limited in described valve body, described inlet opening and described delivery outlet are positioned on the same sidewall of described valve body, described high-pressure mouth is positioned on other sidewalls of described valve body, and the space on the sidewall that described slide block is located at described cavity slidably and in described slide block is communicated with described inlet opening all the time.
According to the twin-tub rotation-type compressor of the embodiment of the present invention, described twin-tub rotation-type compressor is applied in refrigeration plant, described refrigeration plant comprises indoor heat exchanger, outdoor heat exchanger, two throttle elements and gas-liquid separator, described two throttle elements are connected between described indoor heat exchanger and described outdoor heat exchanger, described gas-liquid separator is connected between described two throttle elements, described gas-liquid separator has gas-blowing outlets, described twin-tub rotation-type compressor comprises: housing, and described housing has relief opening and gas returning port, compressing mechanism, described compressing mechanism is located in described housing, described compressor means comprises the first cylinder, second cylinder and central diaphragm, described central diaphragm is located between described first cylinder and described second cylinder, described first cylinder has the first compression chamber and the first slide plate chamber, described second cylinder has the second compression chamber and the second slide plate chamber, described first compression chamber is communicated with by low section of silencing apparatus with described second compression chamber, the first slide plate and magnet is provided with in described first slide plate chamber, be provided with the second slide plate in described second slide plate chamber and be only against the coil spring on described second slide plate, described first compression chamber is communicated with gas returning port, described second slide plate chamber is communicated with the space in described housing, loop switch assembly, described loop switch assembly comprises inlet opening, delivery outlet and high-pressure mouth, described delivery outlet is communicated with one of them in described high-pressure mouth with described inlet opening, described inlet opening is communicated with gas returning port, described delivery outlet is communicated with described first slide plate chamber, and described high-pressure mouth is suitable for being communicated with described gas-blowing outlets.
According to the twin-tub rotation-type compressor of the embodiment of the present invention, by being provided with loop switch assembly, switch between the operating mode that the operating mode that twin-tub rotation-type compressor can be run at cylinder and two cylinders run simultaneously, thus significantly adjust the power capacity of twin-tub rotation-type compressor, when the load of refrigeration plant reduces, automatically can reduce the quantity of running cylinder, become 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
In some embodiments of the invention, described low section of silencing apparatus is connected with described gas-blowing outlets by injection pipe, described injection pipe is in series with the control valve being used to open or close described injection pipe.
In some embodiments of the invention, described low section of silencing apparatus is connected with described delivery outlet.
In some embodiments of the invention, described loop switch assembly is loop switch valve, described loop switch valve comprises the slide block of valve body and hollow, cavity is limited in described valve body, described inlet opening and described delivery outlet are positioned on the same sidewall of described valve body, described high-pressure mouth is positioned on other sidewalls of described valve body, and the space on the sidewall that described slide block is located at described cavity slidably and in described slide block is communicated with described inlet opening all the time.
According to the refrigeration plant of the embodiment of the present invention, comprise twin-tub rotation-type compressor according to the above embodiment of the present invention.
According to the refrigeration plant of the embodiment of the present invention, by being provided with above-mentioned twin-tub rotation-type compressor, when the load of refrigeration plant reduces, automatically can reducing the quantity of running cylinder, becoming 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
Accompanying drawing explanation
Fig. 1 represents in " embodiment 1 " of the present invention, the sectional view (pattern P1) of twin-tub rotation-type compressor and loop switch valve;
Fig. 2 represents with in " embodiment 1 ", the sectional view (Mode S 1) of above-mentioned twin-tub rotation-type compressor and loop switch valve;
Fig. 3 represents in " embodiment 2 " of the present invention, possesses the twin-tub rotation-type compressor of air injection function and the sectional view (pattern P2) of loop switch valve;
Fig. 4 represents in these " embodiment 2 ", possesses twin-tub rotation-type compressor and the refrigerating circulatory device (pattern P2) of the two-way valve opening air injection function and this loop;
Fig. 5 represents in these " embodiment 2 ", possesses twin-tub rotation-type compressor and the refrigeration cycle (Mode S 2) of the two-way valve of closing air injection function and this loop;
In Fig. 6 the present invention " embodiment 3 ", possess the twin-tub rotation-type compressor of air injection function and the sectional view (pattern P2) of loop switch valve;
Fig. 7 represents in these " embodiment 3 ", the sectional view (Mode S 2) of above-mentioned twin-tub rotation-type compressor and loop switch valve.
Reference character:
Twin-tub rotation-type compressor 120, housing 2, motor section 130, compressing mechanism 140, cylinder 10a (10b), compression chamber 11a (11b), piston 14a (14b), central diaphragm 6, slide plate 12a (12b), eccentric shaft 30, main bearing 20, supplementary bearing 21, slide plate chamber 15a (15b), magnet 16, pressure switches pipe 35, coil spring 19b, liquid-storage container 107, low-voltage tube 5a, low pressure air suction pipe 4, low section of silencing apparatus 8, exhaust port 24a (24b), outlet valve 23a (23b), intercommunicating pore 6b, low pressure by-pass hole 32a, low band side one-way valve 32, high section silencing apparatus 25, high-voltage tube 33, silencing apparatus exhaust port 26, outlet pipe 3, intermediate connection tube 7,
Loop switch valve 106, high-pressure mouth 106b, inlet opening 106c, delivery outlet 106d, slide block 106a,
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Describe the twin-tub rotation-type compressor 120 according to the embodiment of the present invention in detail below with reference to Fig. 1-Fig. 5, wherein twin-tub rotation-type compressor 120 is applied in refrigeration plant, and this refrigeration plant can be the devices such as air conditioner.
As Figure 1-Figure 5, according to the twin-tub rotation-type compressor 120 of the embodiment of the present invention, comprising: housing 2, compressing mechanism 140 and loop switch assembly, wherein, housing 2 has relief opening and gas returning port.Compressing mechanism 140 is located in housing 2, compressing mechanism 140 comprises the first cylinder 10a (being following cylinder 10a), second cylinder 10b (being following cylinder 10b) and central diaphragm 6, central diaphragm 6 is located between the first cylinder 10a and the second cylinder 10b, first cylinder 10a has the first compression chamber 11a (being following compression chamber 11a) and the first slide plate chamber 15a (being following slide plate chamber 15a), second cylinder 10b has the second compression chamber 11b (being following compression chamber 11b) and the second slide plate chamber 15b (being following slide plate chamber 15b), first compression chamber 11a is communicated with by low section of silencing apparatus 8 with the second compression chamber 11b, in concrete example of the present invention, cavity is provided with to limit low section of silencing apparatus 8 in central diaphragm 6, it is appreciated of course that, low section of silencing apparatus 8 can also be the connecting tube of connection first compression chamber 11a and the second compression chamber 11b.
The first slide plate 12a (being following slide plate 12a) and magnet 16 is provided with in first slide plate chamber 15a, the coil spring 19b being provided with the second slide plate 12b (being following slide plate 12b) in second slide plate chamber 15b and being only against on the second slide plate 12b, first compression chamber 11a is communicated with gas returning port, and the second slide plate chamber 15b is communicated with the space in housing 2.
Need to be described, compressing mechanism 140 also comprises main bearing 20 and supplementary bearing 21, and main 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, compressing mechanism 140 also comprises the elements such as eccentric shaft 30, piston, high section silencing apparatus 25, eccentric shaft 30 runs through main bearing 20, first cylinder 10a, central diaphragm 6, second cylinder 10b and supplementary bearing 21, a piston 14a (or 14b) be enclosed within eccentric shaft 30 is respectively equipped with outward in first compression chamber 11a and the second compression chamber 11b, eccentric shaft 30 drives piston to do eccentric rotary, and the second slide plate 12b is only against all the time on the outer surface of the piston 14b of the second compression chamber 11b under the effect of coil spring 19b.
Slide plate 12a wherein in the first cylinder 10a can the limit position at the center of contiguous first cylinder 10a and away from the center of the first cylinder 10a limit position between to-and-fro motion.Slide plate 12b in second cylinder 10b can the limit position at the center of contiguous second cylinder 10b and away from the center of the second cylinder 10b limit position between to-and-fro motion.
To limit noise elimination cavity on the lower surface that high section silencing apparatus 25 is located at supplementary bearing 21, noise elimination cavity is communicated with the space in housing 2 by silencing apparatus exhaust port 26, and silencing apparatus exhaust port 26 runs through main bearing 20, first cylinder 10a, central diaphragm 6, second cylinder 10b and supplementary bearing 21 successively.
Also it should be noted that, the first compression chamber 11a has towards the exhaust port 24a of low section of silencing apparatus 8 opening and outlet valve 23a, and outlet valve 23a is used to open or close exhaust port 24a, and when outlet valve 23a opens, the first compression chamber 11a is communicated with low section of silencing apparatus 8.Second compression chamber 11b has towards the exhaust port 24b of supplementary bearing 21 opening and outlet valve 23b, and outlet valve 23b is used to open or close exhaust port 24b, and when outlet valve 23b opens, the second compression chamber 11b is communicated with the noise elimination cavity of high section silencing apparatus 25.
Loop switch assembly comprises inlet opening 106c, delivery outlet 106d and high-pressure mouth 106b, delivery outlet 106d is communicated with one of them in high-pressure mouth 106b with inlet opening 106c, inlet opening 106c is communicated with gas returning port, delivery outlet 106d is communicated with the first slide plate chamber 15a, and high-pressure mouth 106b is communicated with the space in housing.Need to be described, the space in housing 2 refers to the space be communicated with relief opening, then the pressure in housing 2 is identical with the pressure of exhaust ports, and the pressure simultaneously in housing 2 is identical with the pressure of the refrigerant of discharging from the second compression chamber 11b.
Particularly, when delivery outlet 106d is communicated with high-pressure mouth 106b, pressure then in the first slide plate chamber 15a is identical with the pressure in housing, in this case, pressure in first slide plate chamber 15a is greater than the suction of magnet 16, first slide plate 12a is only against on the outer surface of the piston of the first compression chamber 11a, first cylinder 10a can compress the refrigerant entered in the first compression chamber 11a, thus in this case, first cylinder 10a and the second cylinder 10b can be in running state respectively, 2 grades of compressions are carried out by adopting the first cylinder 10a and the second cylinder 10b, be operating mode P1 (P2).
When delivery outlet 106d is communicated with inlet opening 106c, pressure then in the first slide plate chamber 15a is identical with the low pressure at gas returning port place, in this case, first slide plate 12a is due to the magnetic force of magnet 16, depart from the outer surface of the piston in the first compression chamber 11a, static in the first slide plate chamber 15a, the first cylinder 10a is in cutting-out cylinder and runs.Thus in this case, the first cylinder 10a cutting-out cylinder, the second cylinder 10b run, only adopt the second cylinder 10b to carry out 1 grade of compression, be operating mode S1 (S2).
In brief, by making one of them conducting in delivery outlet 106d and inlet opening 106c and high-pressure mouth 106b, the pressure in the first slide plate chamber 15a of the first cylinder 10a can be made to switch between low pressure and high pressure, thus the first cylinder 10a is switched between operation and cutting-out cylinder pattern, and then existing twin-tub rotation-type compressor 120 switches between operating mode P1 (P2) and operating mode S1 (S2).
According to the twin-tub rotation-type compressor 120 of the embodiment of the present invention, by being provided with loop switch assembly, switching between the operating mode P1 (P2) that the operating mode S1 (S2) that twin-tub rotation-type compressor 120 can be run at cylinder and two cylinders run simultaneously, thus significantly adjust the power capacity of twin-tub rotation-type compressor 120, when the load of refrigeration plant reduces, automatically can reduce the quantity of running cylinder, become 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
In some embodiments of the invention, be provided with towards the low pressure by-pass hole 32a of low section of silencing apparatus 8 opening in first compression chamber 11a, low pressure by-pass hole 32a is provided with low band side one-way valve 32, and low band side one-way valve 32 is formed at one-way conduction the direction from the first compression chamber 11a to low section of silencing apparatus 8.Thus ensure that air-flow only flows to low section of silencing apparatus 8 from the first compression chamber 11a, simultaneously when the first cylinder 10a is in cutting-out cylinder operation, low-pressure gas need not pass through exhaust port 24a and outlet valve 23a, second compression chamber 11b absorption pressure can lose less low-pressure gas, so can maintain high efficiency.
In some embodiments of the invention, twin-tub rotation-type compressor 120 also comprises injection pipe 103, and one end of injection pipe 103 is communicated with low section of silencing apparatus 8, and injection pipe 103 is provided with the control valve 115 opening or closing injection pipe 103.
According to a particular embodiment of the invention, loop switch assembly is loop switch valve 106, loop switch valve 106 comprises the slide block 106a of valve body and hollow, cavity is limited in valve body, inlet opening 106c and delivery outlet 106d is positioned on the same sidewall of valve body, high-pressure mouth 106b is positioned on other sidewalls of valve body, and slide block 106a establishes on the sidewalls of the cavities slidably and space in slide block 106a is communicated with inlet opening 106c all the time.Particularly, space in slide block 106a is opened with other space intervals in cavity all the time, pressure in slide block 106a is always low pressure, pressure outside slide block 106a is high pressure, thus under the differential pressure action of high pressure and low pressure, slide block 106a can be pressed on the sidewalls of the cavities, avoid slide block 106a to drop from the sidewall of cavity.When the space in slide block 106a is only communicated with inlet opening 106c, then high-pressure mouth 106b is communicated with delivery outlet 106d, and when the space in slide block 106a is communicated with delivery outlet 106d with inlet opening 106c simultaneously, then inlet opening 106c is communicated with delivery outlet 106d.Thus make the structure of loop switch assembly simple.
Describe the twin-tub rotation-type compressor 120 according to the embodiment of the present invention in detail below with reference to Fig. 3-Fig. 7, wherein twin-tub rotation-type compressor 120 is applied in refrigeration plant, and this refrigeration plant can be the devices such as air conditioner.Refrigeration plant comprises indoor heat exchanger 100, outdoor heat exchanger 110, two throttle elements 102a, 102b and gas-liquid separator 108, two throttle elements 102a, 102b are connected between indoor heat exchanger 100 and outdoor heat exchanger 110, gas-liquid separator 108 is connected between two throttle elements 102a, 102b, and gas-liquid separator 108 has gas-blowing outlets.
As shown in Figure 6 and Figure 7, according to the twin-tub rotation-type compressor 120 of the embodiment of the present invention, comprising: housing 2, compressing mechanism 140 and loop switch assembly, wherein, housing 2 has relief opening and gas returning port.Compressing mechanism 140 is located in housing 2, compressing mechanism 140 comprises the first cylinder 10a (being following cylinder 10a), second cylinder 10b (being following cylinder 10b) and central diaphragm 6, central diaphragm 6 is located between the first cylinder 10a and the second cylinder 10b, first cylinder 10a has the first compression chamber 11a (being following compression chamber 11a) and the first slide plate chamber 15a (being following slide plate chamber 15a), second cylinder 10b has the second compression chamber 11b (being following compression chamber 11b) and the second slide plate chamber 15b (being following slide plate chamber 15b), first compression chamber 11a is communicated with by low section of silencing apparatus 8 with the second compression chamber 11b, in concrete example of the present invention, cavity is provided with to limit low section of silencing apparatus 8 in central diaphragm 6, it is appreciated of course that, low section of silencing apparatus 8 can also be the connecting tube of connection first compression chamber 11a and the second compression chamber 11b.
The first slide plate 12a (being following slide plate 12a) and magnet 16 is provided with in first slide plate chamber 15a, the coil spring 19b being provided with the second slide plate 12b (being following slide plate 12b) in second slide plate chamber 15b and being only against on the second slide plate 12b, first compression chamber 11a is communicated with gas returning port, and the second slide plate chamber 15b is communicated with the space in housing 2.
Need to be described, compressing mechanism 140 also comprises main bearing 20 and supplementary bearing 21, and main 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, compressing mechanism 140 also comprises the elements such as eccentric shaft 30, piston, high section silencing apparatus 25, eccentric shaft 30 runs through main bearing 20, first cylinder 10a, central diaphragm 6, second cylinder 10b and supplementary bearing 21, a piston 14a (or 14b) be enclosed within eccentric shaft 30 is respectively equipped with outward in first compression chamber 11a and the second compression chamber 11b, eccentric shaft 30 drives piston to do eccentric rotary, and the second slide plate 12b is only against all the time on the outer surface of the piston 14b of the second compression chamber 11b under the effect of coil spring 19b.
Slide plate 12a wherein in the first cylinder 10a can the limit position at the center of contiguous first cylinder 10a and away from the center of the first cylinder 10a limit position between to-and-fro motion.Slide plate 12b in second cylinder 10b can the limit position at the center of contiguous second cylinder 10b and away from the center of the second cylinder 10b limit position between to-and-fro motion.
To limit noise elimination cavity on the lower surface that high section silencing apparatus 25 is located at supplementary bearing 21, noise elimination cavity is communicated with the space in housing 2 by silencing apparatus exhaust port 26, and silencing apparatus exhaust port 26 runs through main bearing 20, first cylinder 10a, central diaphragm 6, second cylinder 10b and supplementary bearing 21 successively.
Also it should be noted that, the first compression chamber 11a has towards the exhaust port 24a of low section of silencing apparatus 8 opening and outlet valve 23a, and outlet valve 23a is used to open or close exhaust port 24a, and when outlet valve 23a opens, the first compression chamber 11a is communicated with low section of silencing apparatus 8.Second compression chamber 11b has towards the exhaust port 24b of supplementary bearing 21 opening and outlet valve 23b, and outlet valve 23b is used to open or close exhaust port 24b, and when outlet valve 23b opens, the second compression chamber 11b is communicated with the noise elimination cavity of high section silencing apparatus 25.
Loop switch assembly comprises inlet opening 106c, delivery outlet 106d and high-pressure mouth 106b, delivery outlet 106d is communicated with one of them in high-pressure mouth 106b with inlet opening 106c, inlet opening 106c is communicated with gas returning port, delivery outlet 106d is communicated with the first slide plate chamber 15a, and high-pressure mouth 106b is suitable for being communicated with gas-blowing outlets.Wherein the jet pressure of gas-blowing outlets is the high pressure of the exhaust pressure close to housing 2.
Particularly, when delivery outlet 106d is communicated with high-pressure mouth 106b, pressure then in the first slide plate chamber 15a is identical with the pressure of gas-blowing outlets, in this case, pressure in first slide plate chamber 15a is greater than the suction of magnet 16, first slide plate 12a is only against on the outer surface of the piston of the first compression chamber 11a, first cylinder 10a can compress the refrigerant entered in the first compression chamber 11a, thus in this case, first cylinder 10a and the second cylinder 10b can be in running state respectively, 2 grades of compressions are carried out by adopting the first cylinder 10a and the second cylinder 10b, be operating mode P1 (P2).
When delivery outlet 106d is communicated with inlet opening 106c, pressure then in the first slide plate chamber 15a is identical with the low pressure at gas returning port place, in this case, first slide plate 12a is due to the magnetic force of magnet 16, depart from the outer surface of the piston in the first compression chamber 11a, static in the first slide plate chamber 15a, the first cylinder 10a is in cutting-out cylinder and runs.Thus in this case, the first cylinder 10a cutting-out cylinder, the second cylinder 10b run, only adopt the second cylinder 10b to carry out 1 grade of compression, be operating mode S1 (S2).
In brief, by making one of them conducting in delivery outlet 106d and inlet opening 106c and high-pressure mouth 106b, the pressure in the first slide plate chamber 15a of the first cylinder 10a can be made to switch between low pressure and high pressure, thus the first cylinder 10a is switched between operation and cutting-out cylinder pattern, and then existing twin-tub rotation-type compressor 120 switches between operating mode P1 (P2) and operating mode S1 (S2).
According to the twin-tub rotation-type compressor 120 of the embodiment of the present invention, by being provided with loop switch assembly, switching between the operating mode P1 (P2) that the operating mode S1 (S2) that twin-tub rotation-type compressor 120 can be run at cylinder and two cylinders run simultaneously, thus significantly adjust the power capacity of twin-tub rotation-type compressor 120, when the load of refrigeration plant reduces, automatically can reduce the quantity of running cylinder, become 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
In some embodiments of the invention, as shown in Figure 3 and Figure 5, low section of silencing apparatus 8 is connected with gas-blowing outlets by injection pipe 103, injection pipe 103 is in series with the control valve being used to open or close injection pipe 103.When the first cylinder 10a cutting-out cylinder runs, then control valve is in closed condition.When the first cylinder 10a and the second cylinder 10b is all in running state, then control valve is in open mode.Particularly, control valve is two-way valve 115.
In other embodiments of the present invention, as shown in Figure 6 and Figure 7, low section of silencing apparatus 8 is connected with delivery outlet 106d.Thus when the first cylinder 10a cutting-out cylinder runs, the refrigerant be drained in low section of silencing apparatus 8 is low pressure refrigerant, can omit control valve.
According to a particular embodiment of the invention, loop switch assembly is loop switch valve 106, loop switch valve 106 comprises the slide block 106a of valve body and hollow, cavity is limited in valve body, inlet opening 106c and delivery outlet 106d is positioned on the same sidewall of valve body, high-pressure mouth 106b is positioned on other sidewalls of valve body, and slide block 106a establishes on the sidewalls of the cavities slidably and space in slide block 106a is communicated with inlet opening 106c all the time.Particularly, space in slide block 106a is opened with other space intervals in cavity all the time, pressure in slide block 106a is always low pressure, pressure outside slide block 106a is high pressure, thus under the differential pressure action of high pressure and low pressure, slide block 106a can be pressed on the sidewalls of the cavities, avoid slide block 106a to drop from the sidewall of cavity.When the space in slide block 106a is only communicated with inlet opening 106c, then high-pressure mouth 106b is communicated with delivery outlet 106d, and when the space in slide block 106a is communicated with delivery outlet 106d with inlet opening 106c simultaneously, then inlet opening 106c is communicated with delivery outlet 106d.Thus make the structure of loop switch assembly simple.
According to the refrigeration plant of the embodiment of the present invention, comprise twin-tub rotation-type compressor according to the above embodiment of the present invention.
As shown in Figure 4, refrigeration plant also comprises indoor heat exchanger 100, four-way valve 105, gas-liquid separator 108, outdoor heat exchanger 110 and two throttle element 102a (102b), and twin-tub rotation-type compressor 100 also comprises liquid-storage container 107.Four-way valve 105 comprises four valve ports, four valve ports of four-way valve 105 are connected with outdoor heat exchanger 110 with liquid-storage container 107, relief opening, indoor heat exchanger 100 respectively, gas-liquid separator 108 is in series with between indoor heat exchanger 100 and outdoor heat exchanger 110, throttle element 102a is connected between the entrance of indoor heat exchanger 100 and gas-liquid separator 108, throttle element 102b is connected between the liquid outlet of gas-liquid separator 108 and outdoor heat exchanger 110, and the gas-blowing outlets of gas-liquid separator 108 is connected with injection pipe 103.
According to the refrigeration plant of the embodiment of the present invention, by being provided with above-mentioned twin-tub rotation-type compressor 120, when the load of refrigeration plant reduces, the quantity of running cylinder automatically can be reduced, become 1 grade of compression from 2 grades of compressions, thus travelling comfort and efficiency can be taken into account.
The twin-tub rotation-type compressor 120 according to the present invention's three specific embodiments is described in detail below with reference to Fig. 1-Fig. 7.
Embodiment 1:
Fig. 1 and Fig. 2, expression can carry out the twin-tub rotation-type compressor 120 of 2 grades of compressions and the internal structure of loop switch valve 106.The inside of the seal casinghousing 2 of twin-tub rotation-type compressor 120 possesses the motor section 130 of the variable-frequency type of variable rotational speed, and its underpart configuration possesses the compressing mechanism 140 of cylinder 10a and cylinder 10b.
The feature of twin-tub rotation-type compressor 120 is the loop switch valves 106 possessed by the outside of housing 2, possess be in operation to cylinder 10a carry out cutting-out cylinder operation Mode S 1 and remove this cutting-out cylinder run pattern P1.As the four-way valve in loop switch valve 106 using air-condition device etc. or three-way valve.
Compressing mechanism 140 by the central diaphragm 6 configured between the piston 14a possessed in: the cylinder 10a of low band side press part and the cylinder 10b of high band side press part, these compression chambers 11a and compression chamber 11b and piston 14b, 2 cylinders, to abut the slide plate 12a that moves back and forth and slide plate 12b with the periphery of each piston, make two pistons carry out simultaneously off-centre operation eccentric shaft 30, slip support is carried out to eccentric shaft 30, be fixed on the main bearing 20 on cylinder 10a, the composition such as the supplementary bearing 21 be fixed on cylinder 10b.In addition, the discharge capacity of compression chamber 11a is larger than the discharge capacity of compression chamber 11b.In addition, in embodiment 1, low band side press part is in main bearing 20 side, and high band side press part is configured in supplementary bearing 21 side but the configuration up and down of these press parts can be put upside down.
The upper and lower opening portion of the slide plate chamber 15a possessed in cylinder 10a is sealed by main bearing 20 and central diaphragm 6, possesses slide plate 12a and magnet 16 in the 15a of slide plate chamber.In addition, from the outside of housing 2, the pressure of slide plate chamber 15a opening is switched to pipe 35, is connected to the rearward end of slide plate chamber 15a.On the other hand, the slide plate chamber 15b possessed in cylinder 10b, to housing 2 split shed, possesses slide plate 12b and the tip of this slide plate 12b is pressed in the coil spring 19b on the periphery of piston 14b.
Connect the low-voltage tube 5a of liquid-storage container 107, be connected to the low pressure air suction pipe 4 of the side of cylinder 10a.In central diaphragm 6, possess from compression chamber 11a to the gas channel of compression chamber 11b low section of silencing apparatus 8.In addition, in low section of silencing apparatus 8, possesses the suction port 9b (Fig. 2) the exhaust port 24a of compression chamber 11a opening being communicated with to cylinder 10b with the intercommunicating pore 6b (Fig. 2) of outlet valve 23a, low section of silencing apparatus 8.
And, possess from the suction loop of cylinder 10a to the low pressure by-pass hole 32a (Fig. 2) of low section of silencing apparatus 8 opening, the low band side one-way valve 32 (Fig. 2) this being carried out to switch.In supplementary bearing 21, possess the exhaust port 24b to compression chamber 11b opening, outlet valve 23b and cover their high section silencing apparatus 25.In addition, low section of silencing apparatus 8 can be that to be communicated with the connecting tube of the exhaust port 24a of cylinder 10a and the suction port 9b of cylinder 10b also passable.
Loop switch valve 106 simplifies the structure of three-way valve, as shown in the figure.The delivery outlet 106d that loop switch valve 106 possesses the high-pressure mouth 106b connecting housing high pressure pipe 33, the inlet opening 106c connecting low-voltage tube 5a, Bonding pressure switches pipe 35.The pressure of high-pressure mouth 106b is usually suitable with the pressure (Pd1 or Pd2) of housing 2, and the pressure of inlet opening 106c is usually suitable with the pressure low-pressure (Ps) of liquid-storage container 107.
The slide block 106a that loop switch valve 106 inside possesses, along with operation mode switches can knee-action, the pressure being communicated with the slide plate chamber 15a of delivery outlet 106d freely switches between the pressure and the pressure of liquid-storage container 107 of housing 2.In addition, the interior pressure of slide block 106a is generally Ps, its external pressure is usual suitable with the pressure of housing 2.
In Fig. 1, delivery outlet 106d is communicated with high-pressure mouth 106b, so the pressure (Pd2) of the pressure of slide plate chamber 15a and housing 2 is suitable.Therefore, compression chamber 11a and compression chamber 11b continues to carry out compressing the state run.This operation is called pattern P1 (Fig. 1).On the other hand, after the pressure of slide plate chamber 15a switches to low pressure (Ps), compression chamber 11a is that cutting-out cylinder runs (uncompressed operation).Compression chamber 11a be cutting-out cylinder run, compression chamber 11b be carry out compress run pattern be Mode S 1 (Fig. 2).
According to Fig. 1, the air-flow of pattern P1 is described.The low-pressure gas of liquid-storage container 107 to flow into compression chamber 11a through low pressure suction pipe 4 from low-voltage tube 5a and is discharged to low section of silencing apparatus 8 by compression.Thereafter, Exhaust Gas flow in compression chamber 11b through too low section of silencing apparatus 8 and is again compressed, and is discharged in high section silencing apparatus 25.And, the inside of housing 2 is discharged to by silencing apparatus exhaust port 26.This exhaust pressure is Pd2.These pressurized gas are discharged to (Fig. 4) refrigerating circulatory device from outlet pipe 3.As mentioned above, in pattern P1,2 grades of compressions are set up.
Fig. 2 represents the moment of the running being switched to Mode S 1 from pattern P1.That is, the slide block 106a of loop switch valve 106 is switched to downside, and delivery outlet 106d is switched to the state of low pressure (Ps).As mentioned above, this pattern is Mode S 1.
In Mode S 1, the pressure of slide plate chamber 15a switches to low pressure (Ps) so slide plate 12a is due to the magnetic force of magnet 16, departs from the external diameter of piston 14a, static in the 15a of slide plate chamber.Therefore, compression chamber 11a is that cutting-out cylinder runs.
At this moment, the low-pressure gas of liquid-storage container 107, flow in low section of silencing apparatus 8 through low-voltage tube 5a and low pressure suction pipe 4 and low pressure by-pass hole 32a and low band side one-way valve 32.Thereafter, low-pressure gas is discharged to by compression in high section silencing apparatus 25 in high band side compression chamber 11b.Further, the inside of housing 2 is discharged to by silencing apparatus exhaust port 26.Therefore, 1 of cylinder 10b grade of Mode S 1 compressed is only had to be set up.In addition, be Pd1 to the exhaust pressure of the inside of housing 2.
Mode S 1 is described above, and due to the effect of low band side one-way valve 32, low-pressure gas need not pass through compression chamber 11a and exhaust port 24a.Therefore, compression chamber 11b absorption pressure can lose less low-pressure gas, so can maintain high efficiency.
Mode S 1, be the single cylinder 1 grade compression only having cylinder 10b, so due to the reduction of gas gettering quantity, refrigerating capacity can reduce, and compression ratio (Pd1/Ps) also can reduce.Power consumption also can reduce simultaneously.The refrigerating capacity that Mode S 1 is relevant reduces, if the rotating speed of compressor is certain, decides primarily of the displacement rate of compression chamber 11a and compression chamber 11b, air-breathing and exhaust pressure etc.
Mode S 1 to pattern P1 switching method aspect, to make slide block 106a get back to pattern P1 just passable.At this moment, the pressure of slide plate chamber 15a can be switched to Pd1 from Ps.Because this pressure reduction (Δ p) slide plate 12a can depart from magnet 16, abut with the periphery of the piston 14a of idle running.Therefore, the cutting-out cylinder of compression chamber 11a runs and can remove, so can switch to 2 grades of pattern P1 compressed.
Like this, the present invention by the operation of loop switch valve 106, can comfortable ground switch mode.In addition, in pattern P1, due to from compression chamber 11a exhaust out, the pressure of low section of silencing apparatus 8 becomes large, so low band side one-way valve 32 is closed.In addition, mode switch time is within 1 second.
Next, be that running state after the compressor start of zero is described to the pressure reduction (Δ p) of high-low pressure.Loop switch valve 106 starts when Mode S 1, and cylinder 10a is that cutting-out cylinder runs, but cylinder 10b is due to the effect of sliding blade spring 19b, starts common compression.Thereafter, if Holdover mode S1 always, will run by continuous-mode S1.Between, low band side one-way valve 32 can opening.
But, after switching to pattern P1, due to the increase of pressure reduction (Δ p), automatically can switch to pattern P1.That is, larger than the magnetic force of magnet 16 by the breakaway force of the Δ p that increases, slide plate 12a, run so slide plate 12a follows the cutting-out cylinder that piston 14b removes cylinder 10a.
On the other hand, pattern P starts, and cylinder 10b starts common compression.But before Δ p increases, cylinder 10a just becomes cutting-out cylinder running, is actually and starts by Mode S 1.But, because the increase of Δ p automatically switches to pattern P.
Start to switch to the standby time of pattern P to determine due to the increase of pressure reduction (Δ p) after startup, but air conditioner, from starting in the scope of about 10 ~ 20 seconds.This standby time is determined by the relation of the magnetic force of Δ p and magnetite 16.Like this, no matter pattern when startup is any, does not all have large difference, in addition, automatically can switch to target pattern after startup.
In operation between Mode S 1 and pattern P1, freely can switch pattern, utilize this feature, can easily automatic pattern be controlled according to the operating load of cooling cycle system or the operating load of compressor.Such as, air-conditioning, can (1) according to air conditioning load, control the ability of compressor.Its result, can create more comfortable air conditioner surroundings.In addition, unnecessary operation can be avoided, improve APF.(2) even if operating load has large change, pattern can switch instantaneously, so the automatic control ratio of refrigeration cycle is easier to.The reliability of compressor can be improved in addition by the operation adapting to load.
Next, as the alternative means of loop switch valve 106, utilize the method etc. of systematic evaluation four-way valve required in the method for two-way valve or one-way valve and heat pump system, several method can be had in main scope of the present invention.In addition, utilize the pressure of high tension loop and low tension loop, pattern switch means is not by the restriction of announcement scope of the present invention.
Embodiment 2:
Add air injection function in the 2 grades of rotary compressors 120 disclosed in embodiment 1, improve the efficiency of air conditioner, refrigerating plant, operate heating or cryogenic temperature when can not reduce severe cold in addition, due to high compression ratio, very good.
Embodiment 2 shown in Fig. 3 is connected to injection pipe 103 in the intermediate connection tube 7 to low section of silencing apparatus 8 opening.In addition, in injection pipe 103, add the two-way valve 115 in this loop of connecting valve.
In Fig. 3 the pressure of slide plate chamber 15a be high pressure (Pd2) so, cylinder 10a and cylinder 10b is that 2 grades of compressions of continuous service run.Further, two-way valve 115 can be opened, so the gas coolant that gas-liquid separator 108 (Fig. 4) is separated injects low section of silencing apparatus 8 by injection pipe 103.This operates as pattern P2.
The refrigeration cycle (heating mode) of the air conditioner in Fig. 4 intermediate scheme P2.The pressurized gas (pressure P d2) of discharging from outlet pipe 3 become condensation refrigerant by four-way valve 105 indoor heat exchanger 100, thereafter, reduced pressure by expansion valve 102a, the gas coolant (pressure P i) of pressing in being separated in gas-liquid separator 108 and liquid coolant.
By gas jet refrigerant in twin-tub rotation-type compressor 120, increase overcooled liquid coolant, reduce pressure further by expansion valve 102b, become low-pressure gas refrigerant (pressure P s) at outdoor heat exchanger 110, thereafter, arrive by four-way valve 105 and liquid-storage container 107 the low pressure suction pipe 4 being connected to cylinder 10a.
In Fig. 5, loop switch valve 106 is Mode S 1 so cylinder 10a is cutting-out cylinder runs, and cylinder 10b is during compression runs.While the control of loop switch valve 106, two-way valve 115 cuts out, so can close the spray circuits of low section of silencing apparatus 8.This pattern is Mode S 2.
If as described in Example 1, switch mode between pattern P2 and Mode S 2, even possess 2 grades of compressions of ejection function, it is also set up that pattern switches.That is, spray the pattern P2 opening and become 2 grades of compressions and spray the Mode S 2 stopping becoming 1 grade of compression.By these 2 kinds of patterns, the efficiency of air conditioner can be improved and carry out pleasant climate.
Embodiment 3:
Embodiment 3 shown in Fig. 6 and Fig. 7, be the cases of design omitting the two-way valve 115 used in embodiment 2.
In figure 6, high-pressure mouth 106b and injection pipe 103 is connected to.In addition, inlet opening 106c and low-voltage tube 5a is connected.Next, delivery outlet 106d is connected to pressure switching pipe 35 and intermediate connection tube 7.The internal pressure of the operating slide block 106a of compressor and external pressure, be usually respectively low pressure (Ps) and jet pressure (Pi).
In Fig. 6, the pressure of delivery outlet 106d is that jet pressure (Pi) is so the pressure of slide plate chamber 15a is Pi.Pressure P i is the high pressure of the exhaust pressure Pd2 close to housing 2, so be the required pressure fully of slide plate 12a action.Therefore, 2 grades of compressions are set up.Meanwhile, spray refrigerant to inject low section of silencing apparatus 8 pattern P2 and set up.
Fig. 7 is switched to the state after Mode S 2 by loop switch valve 106 from pattern P2.The pressure of slide plate chamber 15a is switched to low pressure (Ps) from jet pressure (Pi), runs so cylinder 10a is cutting-out cylinder.
Simultaneously, by slide block 106a cut-out, low section of silencing apparatus 8, low pressure (Ps) is switched to the injection refrigerant injection of low section of silencing apparatus 8.Therefore, Mode S 2 is set up.Such embodiment 3, the switch control rule of two-way valve 115 and this valve can be omitted.
The present invention, not still air-conditioning, and also can extensively use in the purposes such as refrigeration plant and water heater.In addition, the component of current twin-tub rotation-type compressor and manufacturing equipment also can be used.
Twin-tub rotation-type compressor 120 tool according to the specific embodiment of the invention has the following advantages:
(1) air conditioning load reduces, and automatically can reduce the quantity of running cylinder, become 1 grade of compression from 2 grades of compressions.In addition, if necessary, can interrupt jet.Therefore, travelling comfort and efficiency can be taken into account.
(2) pass through and use 2 grades to compress and 1 grade of compression, significantly can adjust the power capacity of compressor.
(3) high-performance and cost and manufacturing superior.
(4) as 2 grades of compressions of volume controlled or 2 grades of compressions of jet mode, application development from now on can be expected.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a twin-tub rotation-type compressor, is characterized in that, comprising:
Housing, described housing has relief opening and gas returning port;
Compressing mechanism, described compressing mechanism is located in described housing, described compressing mechanism comprises the first cylinder, second cylinder and central diaphragm, described central diaphragm is located between described first cylinder and described second cylinder, described first cylinder has the first compression chamber and the first slide plate chamber, described second cylinder has the second compression chamber and the second slide plate chamber, described first compression chamber is communicated with by low section of silencing apparatus with described second compression chamber, the first slide plate and magnet is provided with in described first slide plate chamber, be provided with the second slide plate in described second slide plate chamber and be only against the coil spring on described second slide plate, described first compression chamber is communicated with gas returning port, described second slide plate chamber is communicated with the space in described housing,
Loop switch assembly, described loop switch assembly comprises inlet opening, delivery outlet and high-pressure mouth, described delivery outlet is communicated with one of them in described high-pressure mouth with described inlet opening, described inlet opening is communicated with gas returning port, described delivery outlet is communicated with described first slide plate chamber, and described high-pressure mouth is communicated with the space in described housing.
2. twin-tub rotation-type compressor according to claim 1, is characterized in that, is provided with cavity to limit described low section of silencing apparatus in described central diaphragm.
3. twin-tub rotation-type compressor according to claim 1, it is characterized in that, be provided with in described first compression chamber towards the low pressure by-pass hole of low section of silencing apparatus opening, described low pressure by-pass hole is provided with low band side one-way valve, and described low band side one-way valve is formed at from described first compression chamber to one-way conduction the direction of described low section of silencing apparatus.
4. twin-tub rotation-type compressor according to claim 1, is characterized in that, also comprises injection pipe, and one end of described injection pipe is communicated with described low section of silencing apparatus, and described injection pipe is provided with the control valve opening or closing described injection pipe.
5. twin-tub rotation-type compressor according to claim 1, it is characterized in that, described loop switch assembly is loop switch valve, described loop switch valve comprises the slide block of valve body and hollow, cavity is limited in described valve body, described inlet opening and described delivery outlet are positioned on the same sidewall of described valve body, and described high-pressure mouth is positioned on other sidewalls of described valve body, and the space on the sidewall that described slide block is located at described cavity slidably and in described slide block is communicated with described inlet opening all the time.
6. a twin-tub rotation-type compressor, described twin-tub rotation-type compressor is applied in refrigeration plant, described refrigeration plant comprises indoor heat exchanger, outdoor heat exchanger, two throttle elements and gas-liquid separator, described two throttle elements are connected between described indoor heat exchanger and described outdoor heat exchanger, described gas-liquid separator is connected between described two throttle elements, described gas-liquid separator has gas-blowing outlets, it is characterized in that, described twin-tub rotation-type compressor comprises:
Housing, described housing has relief opening and gas returning port;
Compressing mechanism, described compressing mechanism is located in described housing, described compressor means comprises the first cylinder, second cylinder and central diaphragm, described central diaphragm is located between described first cylinder and described second cylinder, described first cylinder has the first compression chamber and the first slide plate chamber, described second cylinder has the second compression chamber and the second slide plate chamber, described first compression chamber is communicated with by low section of silencing apparatus with described second compression chamber, the first slide plate and magnet is provided with in described first slide plate chamber, be provided with the second slide plate in described second slide plate chamber and be only against the coil spring on described second slide plate, described first compression chamber is communicated with gas returning port, described second slide plate chamber is communicated with the space in described housing,
Loop switch assembly, described loop switch assembly comprises inlet opening, delivery outlet and high-pressure mouth, described delivery outlet is communicated with one of them in described high-pressure mouth with described inlet opening, described inlet opening is communicated with gas returning port, described delivery outlet is communicated with described first slide plate chamber, and described high-pressure mouth is suitable for being communicated with described gas-blowing outlets.
7. twin-tub rotation-type compressor according to claim 6, is characterized in that, described low section of silencing apparatus is connected with described gas-blowing outlets by injection pipe, described injection pipe is in series with the control valve being used to open or close described injection pipe.
8. twin-tub rotation-type compressor according to claim 6, is characterized in that, described low section of silencing apparatus is connected with described delivery outlet.
9. twin-tub rotation-type compressor according to claim 6, it is characterized in that, described loop switch assembly is loop switch valve, described loop switch valve comprises the slide block of valve body and hollow, cavity is limited in described valve body, described inlet opening and described delivery outlet are positioned on the same sidewall of described valve body, and described high-pressure mouth is positioned on other sidewalls of described valve body, and the space on the sidewall that described slide block is located at described cavity slidably and in described slide block is communicated with described inlet opening all the time.
10. a refrigeration plant, is characterized in that, comprises the twin-tub rotation-type compressor according to any one of claim 1-9.
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| CN106152429A (en) * | 2015-03-30 | 2016-11-23 | Tcl空调器(中山)有限公司 | Intelligent air-conditioning system and control method thereof |
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| CN107489617A (en) * | 2017-08-28 | 2017-12-19 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its air-conditioning system |
| CN107489618A (en) * | 2017-08-28 | 2017-12-19 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its air-conditioning system |
| CN108869288A (en) * | 2018-07-16 | 2018-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and the air conditioner for applying it |
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| CN111120316A (en) * | 2018-10-31 | 2020-05-08 | 上海海立电器有限公司 | Compressor and air conditioning system |
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