CN1955477A - Multi-stage rotary compressor - Google Patents
Multi-stage rotary compressor Download PDFInfo
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- CN1955477A CN1955477A CN200510015661.2A CN200510015661A CN1955477A CN 1955477 A CN1955477 A CN 1955477A CN 200510015661 A CN200510015661 A CN 200510015661A CN 1955477 A CN1955477 A CN 1955477A
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Abstract
A multi-stage rotation compressor for saving electric energy is composed of casing, driver unit in said casing, the first and the second compression units, the first suction tube of the first compression unit, the second suction tube of the second compression unit, control valve in the first suction tube, the second exhaust valve for the second compression unit, a cavity for temporary storage of cold medium exhausted from the second compression unit, cold medium channel between said cavity and the first compression unit, and regulator for cold medium channel.
Description
Technical field
The invention relates to compressor, particularly a kind of multi-stage rotary compressor.Especially a kind of by possessing a plurality of compression units, can reach with cheap cost and make the capacity of compressor adjustable.
Background technique
Usually, compressor is meant the power that reception is transmitted by power generating apparatus such as motors, and by to air or refrigerant and the compression of other special gas, thereby compression work gas increases the device of its pressure, uses very extensive in each industry.Compressor can be divided into volume type and Scroll-type according to the mode that realizes compression, wherein displacement type compressor Positive displacement compressor adopts increases the compress mode of its pressure by reducing volume, and turbo type compressor Turbo compressor adopts the compress mode that the kinergety of gas is converted to pressure energy.In displacement type compressor, rotary compressor is mainly used in as in the apparatuses of air conditioning such as air-conditioning, and is recently along with the ever-increasing trend of air conditioning function, also more and more significant to the requirement of the adjustable rotary compressor of capacity.
Up to now, the refrigerant of rotary compressor adopts the chloride refrigerant of CFC series.Thereby but because existing to damage the ozone layer, this refrigerant causes the problem of global warming, its use is limited, and is also therefore encouraging the research and development to the alternative refrigerant that can replace existing refrigerant.With present exploitation situation, alternative refrigerant is carbon dioxide possibly.The research of global warming problem not only is confined to substitute the field of refrigerant, also needs to improve simultaneously the efficient of equipment.This is because present most of electric energy or obtain by the mode of fuel such as burning coal, and the carbon dioxide that produces during fuel such as burning coal is only and causes the global warming arch-criminal.
In the compressor of the heart that can be referred to as refrigeration system, the problem that people pay close attention to most is how will be suitable for the alternative refrigerant harmless to earth environment under the prerequisite of not destroying existing compressor performance.For this reason, a kind of capacity is adjustable and can use a kind of one multi-stage rotary compressor with a plurality of compression units of the compressor that substitutes refrigerant to be widelyd popularize.
In aforesaid multi-stage rotary compressor, in cylinder, carry out in the process of back and forth movement refrigerant being sucked, compressing and spues with the centrifugal plunger that combines of running shaft.When load need move hereinafter to be referred as normal mode with bigger capacity greatly, drive a plurality of compression units respectively; Thereby and when load less and need reduce power consumption hereinafter to be referred as battery saving mode with the operation of less capacity the time, adopt the method that is drawn into the refrigerant in a part of compression unit that stops, after moving backward, rotor blade (Vane) utilize fixed plate (Piece) etc. to fix, eliminate the separation state between suction chamber and the pressing chamber, thereby the method that plunger is dallied (Idling) and can't compress refrigerant, the pole-changing motor (Inverter motor) that perhaps will have the controlling and driving device reaches the purpose of adjusting the refrigerant capacity as driver element by adjusting its speed.
But in the structure and operation method thereof of aforesaid existing rotary compressor, the mode to the refrigerant that is drawn in the compression unit stops can't realize the variation of various different capabilities; And rotor blade is moved backward and to its mode of fixing, need to install separately as parts such as fixed plates and need be equipped with the required space of above-mentioned parts is installed, this not only can increase production process, also may be in the process that fixed plate impacts rotor blade for a long time repeatedly its surface be produced infringement, thereby cause wearing and tearing or impurity generation etc. reduces the problem of its trustworthiness.
In addition, when the mode of mode that adopts idle running or the suction of obstruction refrigerant, also there is the problem that reduces compressor efficiency because using a part of compression unit.
Simultaneously, when pole-changing motor is used as driver element, because far above constant-seed motor, therefore there is the problem that can improve cost of production in the price of pole-changing motor.
Summary of the invention
Technical problem to be solved by this invention is, overcomes above-mentioned existing issue, and a kind of multi-stage rotary compressor is provided, and reaches not only and can regulate its capacity according to the variation of room temperature, and it is damaged to avoid parts to take place, and it is minimum that cost of production is dropped to.
In addition, another object of the present invention is to provide a kind of multi-stage rotary compressor, make it when working with battery saving mode, use the state of a plurality of compression units to realize power saving effect down at the same time for the discharge-amount that reduces refrigerant.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: multi-stage rotary compressor is included in the inner shell that forms airtight control; Driver element is installed in the above-mentioned shell, is used to produce driving force; By receiving the driving force of transmitting by above-mentioned driver element, the 1st compression unit and the 2nd compression unit that refrigerant is compressed; Refrigerant is directed to the 1st suction pipe in the 1st compression unit; Be installed in above-mentioned the 1st suction pipe, be used for sucking the control valve that refrigerant is controlled; Refrigerant is directed to the 2nd suction pipe in the 2nd compression unit; By the 2nd discharge valve that the refrigerant that spues of the 2nd compression unit is controlled; The chamber that the refrigerant that spues in the 2nd compression unit is temporarily preserved; Be communicated with the inside of above-mentioned chamber and shell and the refrigerant flow that is communicated with the inner space of above-mentioned chamber and above-mentioned the 1st compression unit in the mode that connects the 1st compression unit and the 2nd compression unit; Be installed in the above-mentioned refrigerant flow, can optionally the refrigerant of inside, above-mentioned chamber be directed to the inside of shell, or the refrigerant of inside, above-mentioned chamber is directed to the regulator of the inner space of the 1st compression unit.
Above-mentioned control valve is a two-way valve.
Above-mentioned refrigerant flow comprises the 1st stream that forms in the mode that connects above-mentioned the 1st compression unit and the 2nd compression unit, and is communicated with the confined space of above-mentioned chamber and above-mentioned shell; The 2nd stream that is connected and in the intermediate bearing between above-mentioned the 1st compression unit and the 2nd compression unit, forms with above-mentioned the 1st stream, and be communicated with the inner space of above-mentioned chamber and above-mentioned the 1st compression unit.
Above-mentioned regulator is included in specified position and forms the perforation stream identical with the direction of above-mentioned the 1st stream, at one end forms cut different unit and is inserted into the valve body of the regulator insertion groove that is arranged in above-mentioned intermediate bearing; The spring that combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
Above-mentioned driver element adopts constant-seed motor.
In above-mentioned the 1st compression unit and the 2nd compression unit, be used for compression refrigerant is sucked and the inner space capacity that compresses has nothing in common with each other.
Above-mentioned regulator comprises having the refrigerant flow that forms along the direction depression certain depth with above-mentioned the 2nd stream level, and is inserted into the valve body of the regulator insertion groove that is arranged in intermediate bearing; The spring that combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
Above-mentioned valve body comprises the main part of diameter less than the diameter of the regulator insertion groove that forms at above-mentioned intermediate bearing; Be connected to aforementioned body portion and when mobile backward, can close the 1st stream, the upside cut different unit that offset forms; Be connected to aforementioned body portion and can close the 2nd stream when moving forward, its offset is less than the downside cut different unit of above-mentioned upside cut different unit; Direction along the downside cut different unit in aforementioned body portion forms, and the attachment hole that is connected with above-mentioned perforation stream.
According to claim 1 or 7 or 8 described multi-stage rotary compressors, it is characterized in that, above-mentioned regulator comprises that the direction that has along with above-mentioned the 2nd stream level connects the perforation stream that forms, and at one end forms cut different unit and is inserted into the spring that the valve body in the 1st stream combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
The invention has the beneficial effects as follows: be suitable for multi-stage rotary compressor of the present invention by under battery saving mode, using all compression units, not only can improve the efficient of compressor, can also be to not reached the higher pressure that spues by compressed cold the compression once more, thus its volumetric efficiency improved.
In addition by using regulator, can utilize simpler structure to realize normal mode and battery saving mode, because do not need to use fixed plate that the rotor blade that retreats is fixed, the problems such as wearing and tearing or impurity generation that can prevent take place, thereby improve its trustworthiness.In addition, by using the adjusting of cheap constant-seed motor realization capacity, can be with cost of production.
Description of drawings
Fig. 1 is the 1st an embodiment's of the present invention longitdinal cross-section diagram,
Fig. 2 is the enlarged cross section figure of the 1st embodiment's of the present invention major component,
Fig. 3 is the sectional view of the state of the 1st embodiment of the present invention when working with normal mode;
Fig. 4 is the sectional view of the state of the 1st embodiment of the present invention when working with battery saving mode;
Fig. 5 is the enlarged cross section figure of the 2nd embodiment's of the present invention major component;
Fig. 6 is the sectional view of the state of the 2nd embodiment of the present invention when working with normal mode;
Fig. 7 is the sectional view of the state of the 2nd embodiment of the present invention when working with battery saving mode;
Fig. 8 is the enlarged cross section figure of the 3rd embodiment's of the present invention major component;
Fig. 9 is the sectional view of the state of the 3rd embodiment of the present invention when working with normal mode;
Figure 10 is the sectional view of the state of the 3rd embodiment of the present invention when working with battery saving mode.
Among the figure:
100: shell 110: discharge tube
130: liquid container 200: driver element
210: stator 220: rotor
230: 300: the 1 compression units of running shaft
340: the 1 plungers in 330: the 1 inner spaces
350: intermediate bearing 351: the regulator insertion groove
352: 360: the 1 holes that spue of remaining space
400: the 2 compression units of 370: the 1 discharge valves
430: the 2 inner spaces of 410: the 2 cylinders
Plunger 450 in 440: the 2: following side bearing
470: the 2 discharge valves in hole spued in 460: the 2
500: 510: the 1 streams of refrigerant flow
Stream 600,800 in 520: the 2, and 900: regulator
610,810,910: valve body 611,911: connect stream
612,912: cut different unit 620,820,920: spring
630,830,930: 710: the 1 suction pipes of electromagnet
715: 730: the 2 suction pipes of control valve
740: chamber 811: refrigerant flow
812: main part 813: the upside cut different unit
814: downside cut different unit 815: attachment hole
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 1 is the 1st an embodiment's of the present invention longitdinal cross-section diagram, and Fig. 2 is the enlarged cross section figure of the 1st embodiment's of the present invention major component; As shown in the figure, multi-stage rotary compressor is included in the inner shell 100 that forms airtight control; Be installed in the shell 100, be used to produce the driver element 200 of driving force; By receiving the driving force of transmitting by driver element 200, the 1st compression unit 300 and the 2nd compression unit 400 that refrigerant is compressed; Refrigerant is directed to the 1st suction pipe 710 in the 1st compression unit 300; Be installed in the 1st suction pipe 710, be used for sucking the control valve 715 that refrigerant is controlled; Refrigerant is directed to the 2nd suction pipe 730 in the 2nd compression unit 400; By the 2nd discharge valve 470 that the refrigerant that spues of the 2nd compression unit 400 is controlled, the chamber 740 that the refrigerant that spues in above-mentioned the 2nd compression unit 400 is temporarily preserved; Be communicated with the inside of above-mentioned chamber 740 and shell 100 and the refrigerant flow 500 that is communicated with the inner space 330 of above-mentioned chamber 740 and the 1st compression unit 300 in the mode that connects the 1st compression unit 300 and the 2nd compression unit 400; Be installed in the refrigerant flow 500, can optionally the refrigerant of 740 inside, above-mentioned chamber be directed to the inside of shell 100, or the refrigerant of 740 inside, above-mentioned chamber is directed to the regulator 600 of the inner space 330 of the 1st compression unit 300.
Above-mentioned shell 100 forms in the mode that connects discharge tube the 110, the 1st suction pipe 710 and the 2nd suction pipe 730.
Above-mentioned driver element 200 comprises the inside that is fixed on shell 100, inserts the stator 210 of power supply from the outside; Install in the mode of a fixed gap at interval in the inside of stator 210, the rotor 220 that is rotated in the interactional process is taking place with stator; Form as one with rotor 220, be used for driving force is delivered in each compression unit 300,400, have the running shaft 230 of two centrifugal portions.Driver element 200 adopts constant-seed motor to be advisable, because the price of constant-seed motor is lower than the pole-changing motor with controlling and driving device relatively.
Above-mentioned compression unit comprises the 1st compression unit 300 and the 2nd compression unit 400.The 1st compression unit 300 wherein comprises the 1st cylinder 310 that the ring-type that is installed on shell 100 inside forms; Common the 1st inner space 330 that forms, both sides up and down by covering the 1st cylinder 310, and radial direction running shaft 230 is supported on side bearing 320 and intermediate bearing 350; Be inserted into the centrifugal portion of upside of running shaft 230, the 1st plunger 340 that in the process that in the 1st inner space 330 of the 1st cylinder 310, is rotated refrigerant is compressed; In order to make the outer circumferential face crimping of itself and the 1st plunger 340,, the 1st inner space 330 of the 1st cylinder 310 is divided into the 1st blade (not marking among the figure) of the 1st suction chamber and the 1st pressing chamber with the mode combination that can move along the radial direction of the 1st cylinder 310; With mode that can switch and the 1st front end combination that spues hole 360 that in last side bearing 320, forms and be communicated with the 1st pressing chamber, the 1st discharge valve 370 that the refrigerant that spues in the 1st pressing chamber is regulated.
Above-mentioned the 2nd compression unit 400 comprises the 2nd cylinder 410 that below that is positioned at the 1st cylinder 310 and the ring-type that contacts with intermediate bearing 350 form; Common the 2nd inner space 430 that forms of upper side by being attached to the 2nd cylinder 410, and the following side bearing 450 that running shaft 230 is supported at radial direction and axle direction; Combine the 2nd plunger 440 that the refrigerant of the 2nd inner space 430 that is positioned at the 2nd cylinder 410 is compressed with centrifugal of the rotatable mode and the downside of running shaft 230; In order to make the outer circumferential face crimping of itself and the 1st plunger 440,, the 2nd inner space 430 of the 2nd cylinder 410 is divided into the 2nd blade (not marking among the figure) of the 2nd suction chamber and the 2nd pressing chamber with the mode combination that can move along the radial direction of the 2nd cylinder 410; With mode that can switch with form the 2nd discharge valve 470 in side bearing 450 1 sides down, and the 2nd hole 460 front end combinations that spue that are communicated with the 2nd pressing chamber.
The volume of the volume of the inner space 330 of above-mentioned the 1st cylinder 310 and the 2nd inner space 430 of the 2nd cylinder 410 can be identical, but in order to realize the adjusting between the multiple capacity, form suitable with different volumes.
Suction one side of above-mentioned the 1st suction pipe 710 and the 2nd suction pipe 730 is connected with the liquid container 130 that is used for the gaseous liquid of refrigerant is separated.Above-mentioned liquid container 130 is sent to the 1st suction pipe 710 and the 2nd suction pipe 730 with the scrubbed gas composition separate gaseous liquid a liquid container pipe 135 that receives refrigerant from the outside after.And in the 1st suction pipe or the 2nd suction pipe, one of them can not be directly connected in the compression unit by liquid container 110.
Above-mentioned control valve 715 uses two-way valve (2way valve) to be advisable.And for its valve is controlled, above-mentioned control valve 715 can be connected with microprocessor.
In order to prevent that refrigerant from leaking, above-mentioned chamber 740 closely is installed in the below of the 2nd compression unit 400, more precisely descends the below of side bearing 450 and keeps sealing.In addition, the noise that produces when reducing compressor operating, it is suitable to make it can carry out acting as of silencing apparatus simultaneously when above-mentioned chamber 740 is designed.
As shown in Figure 2, refrigerant flow 500 comprises that the mode to connect the 1st compression unit 300 and the 2nd compression unit 400 forms, and the 1st stream 510 of the confined space of communicated cavity 740 and shell 100; Be connected and formation in the intermediate bearing 350 between the 1st compression unit 300 and the 2nd compression unit 400 with the 1st stream 510, the 2nd stream 520 of the inner space 330 of communicated cavity 740 and the 1st compression unit 300 is advisable.
In detail, the 1st stream 510 forms in the mode of a side of the 320, the 1st cylinder 310 of side bearing in the vertical perforation, intermediate bearing the 350, the 2nd cylinder 410 and following side bearing 450.
Above-mentioned the 2nd stream 520 is communicated with the 1st stream 510 in being formed at intermediate bearing 350, and with the 1st compression unit 300 in be used for sucking refrigerant the 1st pressing chamber (figure does not mark) be communicated with.
Above-mentioned regulator 600 is included in the direction identical with the 1st stream and forms the perforation stream 611 that can dredge the refrigerant in the 1st stream 510, form step part 612 at the one end, and be inserted into the valve body 610 of the regulator insertion groove 351 that is arranged in intermediate bearing 350; The spring 620 that combines with the other end of valve body 610; Be connected with valve body 610, and according to the electromagnet 630 of control signal mobile valve main body 610.
Connecting stream 611 when valve body 610 moves forward will be overlapping with the 1st stream 510, thereby refrigerant is dredged; And when valve body 610 is mobile backward, will stagger, thereby close the 1st stream in position by valve body 610 with the 1st stream 510.
Above-mentioned step part 612 contacts with intermediate bearing 350 when valve body 610 moves forward, thereby plays the effect of break.And refrigerant can be dredged to the 2nd stream 520.
Below, the effect and the effect of aforesaid multi-stage rotary compressor described.Fig. 3 is the sectional view of embodiments of the invention state when working with normal mode.As shown in the figure, open control valve 715 when under the bigger normal mode of the demand of refrigerant, working, make refrigerant flow into the 1st compression unit 300, make refrigerant flow into the 2nd compression unit 400 simultaneously by the 2nd suction pipe 730.
When driver element 200 is connected power supply, running shaft 230 begins rotation, and the 1st plunger 340 and the 2nd plunger 440 are in separately cylinder interior space 330,340 carry out back and forth movement, and between the 1st blade (not marking among the figure) and the 2nd blade (not marking among the figure), form volume, thereby suck refrigerant.In by the refrigerant after the liquid container 130, a part will be inhaled in the 1st compression unit 300 by the 1st suction pipe 710, and after being compressed by the 1st the spue inside of shell 100, hole 360 that spues.And in by the refrigerant after the liquid container 130, a remaining part will be inhaled in the 2nd compression unit 400 by the 2nd suction pipe 730, and after being compressed by the 2nd the spue inside in chamber 740, hole 460 that spues.
As mentioned above, the 1st compression unit and the 2nd compression unit will be by parallel connections when working under normal mode, thereby separately refrigerant is compressed and spue, and move to the outside of compressor by discharge pipe after assembling in that shell 100 is inner, so the discharge-amount of its refrigerant is more with respect to the battery saving mode of follow-up explanation.
Fig. 4 is the sectional view of the state of the 1st embodiment of the present invention when working with battery saving mode.As shown in the figure, by control valve 715 is operated, make by the suction refrigerant after the liquid container 130 and can't flow into the 1st compression unit 300.Therefore will all be inhaled in the 2nd compression unit 400 by the 2nd suction pipe 730 by the refrigerant after the liquid container 130, and after being compressed by the 2nd 740 inside, chamber that spue, hole 460 that spue.
At this moment, regulator 600 will be opened (ON) electromagnet 630, and valve body 610 is moved backward.Under aforesaid state, valve body 610 will be opened the 2nd stream 520 when closing the 1st stream 510, make in the 2nd compression unit 400, to be compressed and spue afterwards, and the refrigerant that is saved in 740 inside, chamber flow into the inner space 330 of the 1st compression unit 300 by the 2nd stream 520, and compressed once more.And will be directed to outside refrigeration system by discharge tube at last by the 1st the spue inside of shell 100, hole 360 that spues by the refrigerant after the compression once more.
As mentioned above, when working under battery saving mode, the refrigerant that compresses in the 2nd compression unit 400 will move to the 1st compression unit 300 and be compressed once more.The discharge-amount of refrigerant is that compression unit is connected, thereby refrigerant is compressed by the 2nd compression unit 400 and the 1st compression unit 300 successively and spues, though therefore will can reach higher compression factor to less.In addition, in order to obtain to specify the pressure that spues of level, can be through the compression process in two stages, what especially suck in the 1st compression unit 300 is refrigerant after being compressed to a certain degree by the 2nd compression unit 400, therefore needed power is very little.So when under battery saving mode, working, the 1st compression unit and the 2nd compression unit required drive and will be less than normal mode, thereby realize power savings.
In addition, because the present invention has control unit,, still can realize the adjusting of capacity, thereby reduce production costs by normal mode and battery saving mode so use under the state of the cheaper constant-seed motor of price not using the high price pole-changing motor.
Below, the 2nd embodiment of the present invention is described, wherein identical with the 1st embodiment part will be omitted its explanation.Fig. 5 is the enlarged cross section figure of the 2nd embodiment's of the present invention major component.As shown in the figure, regulator 800 comprises having the refrigerant flow 811 that forms along the direction depression certain depth with the 2nd stream 520 levels, and is inserted into the valve body 810 of the regulator insertion groove 351 that is arranged in intermediate bearing 350; The spring 820 that combines with the other end of valve body 810; Be connected with valve body 810 and according to the electromagnet 830 of control signal mobile valve main body 810.
Below, the 2nd embodiment's of the present invention working state is described.Fig. 6 is the sectional view of the state of the 2nd embodiment of the present invention when working with normal mode.As shown in the figure, the mode described in the 1st embodiment is opened control valve 715, makes refrigerant flow into the 1st compression unit 300, makes refrigerant flow into the 2nd compression unit 400 by the 2nd suction pipe 730 simultaneously.At this moment, regulator 800 will cut out (OFF) electromagnet 830, and 810 of valve bodies will move forward by means of the elastic force of spring 820.Under aforesaid state, spuing after being compressed in the 2nd compression unit 400 and be saved in the refrigerant of 740 inside, chamber will be by the spue inside of shell 100 of the 1st stream 510.At this moment, because the diameter of the main part 812 of valve body 810 is less than the diameter of regulator insertion groove 351, so refrigerant can flow by the 1st stream 510.In addition, because downside cut different unit 814 will stop the 2nd stream 520 when moving forward, the refrigerant that therefore is kept at 740 inside, chamber will all move by the 1st stream 510.The refrigerant that spues in each comfortable the 1st compression unit 300 and the 2nd compression unit 400 will fill up the inside of shell 100, be discharged to the outside of shell 100 then by discharge tube, and said process be carried out in circulation.
Fig. 7 is the sectional view of the state of the 2nd embodiment of the present invention when working with battery saving mode.As shown in the figure, control valve 715 is operated, made by the suction refrigerant after the liquid container 130 and can't flow into the 1st compression unit 300 by the method shown in the 1st embodiment.Therefore will all be inhaled in the 2nd compression unit 400 by the 2nd suction pipe 730 by the refrigerant after the liquid container 130, and after being compressed by the 2nd 740 inside, chamber that spue, hole 460 that spue.
At this moment, regulator 800 will be opened (ON) electromagnet 630, and valve body 810 is moved backward.Under aforesaid state, upside cut different unit 813 will be opened the 2nd stream 520 when closing the 1st stream 510.Promptly being saved to refrigerant in the chamber 740 will and connect stream 811 by attachment hole 815 and flow into the inner space 330 of the 1st compression unit 300 and compressed once more.Will be by the refrigerant after the compression once more by the 1st the spue inside of shell 100, hole that spues, and be directed to outside refrigeration system by discharge tube.
Below the 3rd embodiment of the present invention is described, wherein identical with the 1st embodiment part will be omitted its explanation.Fig. 8 is the enlarged cross section figure of the 3rd embodiment's of the present invention major component.As shown in the figure, regulator 900 comprises having along connecting the perforation stream 911 that forms with the direction of the 2nd stream 520 levels, at one end forms cut different unit 912 and is inserted into valve body 910 in the 1st stream 510; The spring 920 that combines with the other end of valve body 910; Be connected with valve body 910 and according to the electromagnet 930 of control signal mobile valve main body 910.
Connecting stream 911 will be overlapping with the 2nd stream 520 when valve body 910 moves forward, thereby refrigerant is dredged; And when valve body 910 is mobile backward, will stagger, thereby close the 2nd stream in position by valve body 910 with the 2nd stream 520.
Above-mentioned cut different unit 912 is closed the 1st stream 510 when valve body 910 moves forward, and cut different unit 912 will rest on the appropriate location in the remaining space 352 that forms in the intermediate bearing 350.
Below, the 3rd embodiment's of the present invention working state is described.Fig. 9 is the sectional view of the state when the 3rd embodiment of the present invention is worked with normal mode.As shown in the figure, the mode described in the 1st embodiment is opened control valve 715, makes refrigerant flow into the 1st compression unit 300, makes refrigerant flow into the 2nd compression unit 400 by the 2nd suction pipe 730 simultaneously.At this moment, regulator 900 will be opened (ON) electromagnet 930 valve body 910 is moved backward.Under aforesaid state, spuing after being compressed in the 2nd compression unit 400 and be saved in the refrigerant of 740 inside, chamber will be by the spue inside of shell 100 of the 1st stream 510.Be that refrigerant will be through being formed at the remaining space 352 in the intermediate bearing 350 and moving by the 1st stream 510, but because valve body 910 has been closed the 2nd stream 520, so refrigerant can't move by the 2nd stream 520.The refrigerant that spues in each comfortable the 1st compression unit 300 and the 2nd compression unit 400 will fill up the inside of shell 100, be discharged to the outside of shell 100 and circulation execution said process by discharge tube then.
Figure 10 is the sectional view of the state of the 3rd embodiment of the present invention when working with battery saving mode.As shown in the figure, control valve 715 is operated, made by the suction refrigerant after the liquid container 130 and can't flow into the 1st compression unit 300 by the method shown in the 1st embodiment.Therefore will all be inhaled in the 2nd compression unit 400 by the 2nd suction pipe 730 by the refrigerant after the liquid container 130, and after being compressed by the 2nd 740 inside, chamber that spue, hole 460 that spue.
At this moment, above-mentioned regulator 900 will cut out (OFF) electromagnet 630, and valve body 810 is moved forward.Under aforesaid state, cut different unit 912 will be opened the 2nd stream 520 when closing the 1st stream 510, and make it consistent with perforation stream 911.The refrigerant that promptly is saved in the chamber 740 will flow into the inner space 330 of the 1st compression unit 300 and compressed once more through perforation stream 911 and along the 2nd stream 520.Will be by the refrigerant after the compression once more by the 1st the spue inside of shell 100, hole that spues, and be directed to outside refrigeration system by discharge tube.
Claims (9)
1. a multi-stage rotary compressor is included in the inner shell that forms airtight control; In above-mentioned shell, driver element is installed, is used to produce driving force; It is characterized in that, by receiving the driving force of transmitting by above-mentioned driver element, the 1st compression unit and the 2nd compression unit that refrigerant is compressed; Refrigerant is directed to the 1st suction pipe in the 1st compression unit; Be installed in above-mentioned the 1st suction pipe, be used for sucking the control valve that refrigerant is controlled; Refrigerant is directed to the 2nd suction pipe in the 2nd compression unit; By the 2nd discharge valve that the refrigerant that spues of the 2nd compression unit is controlled; The chamber that the refrigerant that spues in the 2nd compression unit is temporarily preserved; Be communicated with the inside of above-mentioned chamber and shell and the refrigerant flow that is communicated with the inner space of above-mentioned chamber and above-mentioned the 1st compression unit in the mode that connects the 1st compression unit and the 2nd compression unit; Be installed in the above-mentioned refrigerant flow, can optionally the refrigerant of inside, above-mentioned chamber be directed to the inside of shell, or the refrigerant of inside, above-mentioned chamber is directed to the regulator of the inner space of the 1st compression unit.
2. multi-stage rotary compressor according to claim 1 is characterized in that, above-mentioned control valve is a two-way valve.
3. multi-stage rotary compressor according to claim 1 is characterized in that, above-mentioned refrigerant flow comprises the 1st stream that forms in the mode that connects above-mentioned the 1st compression unit and the 2nd compression unit, and is communicated with the confined space of above-mentioned chamber and above-mentioned shell; The 2nd stream that is connected and in the intermediate bearing between above-mentioned the 1st compression unit and the 2nd compression unit, forms with above-mentioned the 1st stream, and be communicated with the inner space of above-mentioned chamber and above-mentioned the 1st compression unit.
4. multi-stage rotary compressor according to claim 3, it is characterized in that, above-mentioned regulator is included in specified position and forms the perforation stream identical with the direction of above-mentioned the 1st stream, at one end forms cut different unit and is inserted into the valve body of the regulator insertion groove that is arranged in above-mentioned intermediate bearing; The spring that combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
5. multi-stage rotary compressor according to claim 1 is characterized in that, above-mentioned driver element adopts constant-seed motor.
6. multi-stage rotary compressor according to claim 1 is characterized in that, in above-mentioned the 1st compression unit and the 2nd compression unit, is used for compression refrigerant is sucked and the inner space capacity that compresses has nothing in common with each other.
7. multi-stage rotary compressor according to claim 1, it is characterized in that, above-mentioned regulator comprises having the refrigerant flow that forms along the direction depression certain depth with above-mentioned the 2nd stream level, and is inserted into the valve body of the regulator insertion groove that is arranged in intermediate bearing; The spring that combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
8. multi-stage rotary compressor according to claim 7 is characterized in that, above-mentioned valve body comprises the main part of diameter less than the diameter of the regulator insertion groove that forms at above-mentioned intermediate bearing; Be connected to aforementioned body portion and when mobile backward, can close the 1st stream, the upside cut different unit that offset forms; Be connected to aforementioned body portion and can close the 2nd stream when moving forward, its offset is less than the downside cut different unit of above-mentioned upside cut different unit; Direction along the downside cut different unit in aforementioned body portion forms, and the attachment hole that is connected with above-mentioned perforation stream.
9. according to claim 1 or 7 or 8 described multi-stage rotary compressors, it is characterized in that, above-mentioned regulator comprises that the direction that has along with above-mentioned the 2nd stream level connects the perforation stream that forms, and at one end forms cut different unit and is inserted into the spring that the valve body in the 1st stream combines with the other end of above-mentioned valve body; Be connected with above-mentioned valve body and according to the electromagnet of control signal mobile valve main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100156612A CN1955477B (en) | 2005-10-27 | 2005-10-27 | Multi-stage rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100156612A CN1955477B (en) | 2005-10-27 | 2005-10-27 | Multi-stage rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1955477A true CN1955477A (en) | 2007-05-02 |
| CN1955477B CN1955477B (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100156612A Expired - Fee Related CN1955477B (en) | 2005-10-27 | 2005-10-27 | Multi-stage rotary compressor |
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| Country | Link |
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| CN (1) | CN1955477B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889210A (en) * | 2012-09-18 | 2013-01-23 | 珠海格力电器股份有限公司 | Double-cylinder double-mode compressor |
| CN111107915A (en) * | 2017-09-07 | 2020-05-05 | 伊曼纽尔·德米扎基 | Multi-chamber compressor for mechanical vapor recompression and water treatment method |
| WO2020211449A1 (en) * | 2019-04-17 | 2020-10-22 | 上海海立电器有限公司 | Dual-cylinder two-stage variable-capacity compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2768004B2 (en) * | 1990-11-21 | 1998-06-25 | 松下電器産業株式会社 | Rotary multi-stage gas compressor |
| JP3389539B2 (en) * | 1999-08-31 | 2003-03-24 | 三洋電機株式会社 | Internal intermediate pressure type two-stage compression type rotary compressor |
| TWI308631B (en) * | 2002-11-07 | 2009-04-11 | Sanyo Electric Co | Multistage compression type rotary compressor and cooling device |
| US7223082B2 (en) * | 2003-03-25 | 2007-05-29 | Sanyo Electric Co., Ltd. | Rotary compressor |
-
2005
- 2005-10-27 CN CN2005100156612A patent/CN1955477B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889210A (en) * | 2012-09-18 | 2013-01-23 | 珠海格力电器股份有限公司 | Double-cylinder double-mode compressor |
| CN102889210B (en) * | 2012-09-18 | 2015-06-17 | 珠海格力电器股份有限公司 | Double-cylinder double-mode compressor |
| CN111107915A (en) * | 2017-09-07 | 2020-05-05 | 伊曼纽尔·德米扎基 | Multi-chamber compressor for mechanical vapor recompression and water treatment method |
| WO2020211449A1 (en) * | 2019-04-17 | 2020-10-22 | 上海海立电器有限公司 | Dual-cylinder two-stage variable-capacity compressor |
| US11353025B2 (en) | 2019-04-17 | 2022-06-07 | Shanghai Highly Electrical Appliances Co., Ltd. | Dual-cylinder two-stage variable cpacity compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1955477B (en) | 2011-07-06 |
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Granted publication date: 20110706 Termination date: 20211027 |