CN101684803A - Two-stage rotating type compressor - Google Patents
Two-stage rotating type compressor Download PDFInfo
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- CN101684803A CN101684803A CN200810151924A CN200810151924A CN101684803A CN 101684803 A CN101684803 A CN 101684803A CN 200810151924 A CN200810151924 A CN 200810151924A CN 200810151924 A CN200810151924 A CN 200810151924A CN 101684803 A CN101684803 A CN 101684803A
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Abstract
The invention discloses a two-stage rotating type compressor comprising an enclosed container having a refrigerant inlet hole and a refrigerant outlet hole, a rotating shaft capable of transferring the rotating force, a low pressure compression assembly, a high pressure compression assembly, a middle plate arranged between a low pressure cylinder and a high pressure cylinder for separating them, arefrigerant inlet pipe inserted into the refrigerant inlet hole of the enclosed container to enable the refrigerant to flow into the inside of the enclosed container, and a flow distribution device for distributing the refrigerant flow of the refrigerant inlet pipe. The invention can fill the low pressure refrigerant into the enclosed container to enable the liquid refrigerant to be accumulated at the lower part of the enclosed container, accordingly, the liquid storage tank can be saved.
Description
Technical field
The present invention relates to secondary rotary compressor, especially enclosure interior is filled by refrigerant, by being connected the pipe of high pressure compressed assemblying body, the secondary rotary compressor of the refrigerant of 2 compressions row to the compressor outside.For the deflector (baffle) that prevents from that the refrigerant that flows into closed container from flowing directly into low pressure compressor units zoarium, have to make refrigerant circuitous.
Background technique
Usually, compressor is after receiving power from power generating apparatus such as motor or motors, multiple working fluids such as air or refrigerant to be compressed, and improves the mechanical device of its pressure, is widely used in home appliance such as refrigerator, air-conditioning or the whole industrial field.
This compressor can be divided into substantially: form the compression volume that can suck working fluid between piston and the cylinder, allow piston carry out the straight line back and forth movement in cylinder interior, with this reciprocating type compressor that refrigerant is compressed; Rolling of eccentric rotation forms the compression volume that can suck working gas between ring and the cylinder, allow roll ring and carry out off-centre along cylinder inner wall and rotate, with this rotary compressor that refrigerant is compressed; Allow form the compression volume that can suck working gas between movable orbiting scroll and the static vortex disk, allow movable orbiting scroll rotate, with this turbocompressor that refrigerant is compressed along static vortex disk.
Above-mentioned rotary compressor develops into rotating type double-body compressor (twin compressor) and secondary rotary compressor again.Rotating type double-body compressor is provided with paired ring and the cylinder of rolling in the upper and lower part, allow a pair of cylinder and roll a part and the remaining part that ring compresses whole power respectively.Secondary rotary compressor is provided with two and rolls ring and two cylinders in the upper and lower part, and two cylinders are interconnected, the refrigerant of a compression relatively low pressure, and another compresses the relatively high pressure refrigerant that carries out the low pressure compression.
Among the special 1994-0001355 of Korea S's special permission communique, a kind of rotary compressor is disclosed.Portion is provided with motor in the enclosure, runs through motor and is provided with running shaft.Bottom at motor is provided with cylinder, the ring that rolls that is provided with the eccentric part that is entrenched in running shaft and is entrenched in eccentric part in cylinder interior.On cylinder, be formed with refrigerant tap hole and refrigerant ostium, between refrigerant tap hole and refrigerant ostium, be provided with the baffle plate of the mutual mixed flow of high pressure refrigerant that prevents unpressed low pressure refrigerant and compressed.In addition, in order to allow the ring that rolls of eccentric rotation keep contact condition, be provided with spring at an end of baffle plate with baffle plate.When motor rotates running shaft, eccentric part with roll the inner peripheral surface rotation of ring along cylinder, cold media air is compressed, the cold media air after the compression is discharged by the refrigerant tap hole.
Korea S openly speciallys permit among the communique 10-2005-0062995, discloses a kind of rotating type double-body compressor.As shown in Figure 1, have power identical two cylinders 1035,1045 and intermediate plate 1030, compare with a stage compressor, its power is doubled.
Korea S openly speciallys permit among the communique 10-2007-0009958, discloses a kind of secondary rotary compressor.As shown in Figure 2, above closed container 2013 inside of compressor 2001, be provided with the motor 2014 that comprises stator 2007 and rotor 2008, the running shaft 2002 that is connected with motor has two eccentric parts.Be as the criterion with running shaft 2002,, be provided with main bearing 2009, high pressure compression structure 2020b, intermediate plate 2015, low pressure compression structure 2020a and supplementary bearing 2019 with stacking successively from motor 2014 sides.In addition, comprise that a refrigerant that is compressed with compression structure 2020a by low pressure is fed to the intervalve 2040 of high pressure with compression structure 2020b.
Other drawing reference numeral among Fig. 1,2 see also the explanation in the original of Korea S, no longer narrate at this.
Summary of the invention
Technical problem to be solved by this invention is, provide in a kind of closed container and be filled with low pressure refrigerant, the low pressure refrigerant of above-mentioned filling flow into low pressure compressor units zoarium obtain the 1st time the compression after, flow into the high pressure compressed assemblying body and obtain the 2nd compression, the high pressure refrigerant after the compression is discharged to the secondary rotary compressor of compressor outside by the refrigerant discharge tube that is inserted in the high pressure compressed assemblying body.Another object of the present invention provides a kind of secondary rotary compressor that the low pressure refrigerant that prevents closed container inside flows directly into the structure of low pressure compressor units zoarium that has, and can save liquid container.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of secondary rotary compressor comprises the closed container with refrigerant ostium and refrigerant tap hole; Be positioned at closed container inside, transmit the running shaft of rotating force; Have low-pressure cylinder, along the low pressure eccentric part of low-pressure cylinder inner side surface rotation, be combined in the low nip drum ring of low pressure eccentric part outside rotatably during the running shaft rotation, and the low pressure compressor units zoarium that separates the low pressure baffle plate of low-pressure cylinder inner space; Have high pressure cylinder, along the high pressure eccentric part of high pressure cylinder inner side surface rotation, be combined in the high nip drum ring of high pressure eccentric part outside rotatably during the running shaft rotation, and the high pressure compressed assemblying body that separates the high pressure baffle plate of high pressure cylinder inner space; Divide the intermediate plate between low-pressure cylinder and the high pressure cylinder; Be inserted in the refrigerant ostium of closed container, allow refrigerant flow into the refrigerant intake channel of closed container inside; The flow distribution device that the cold medium flux that flows into by the refrigerant intake channel is distributed.
Described flow distribution device is between the refrigerant ostium and low pressure compression cylinder of closed container.
Described flow distribution device, its part that accounts for whole flow distribution device length 1/2 at least are positioned at refrigerant ostium center downside.
Described flow distribution device, its part that accounts for whole flow distribution device length 2/3 at least are positioned at refrigerant ostium center downside.
Described flow distribution device covers whole refrigerant ostium.
Comprise that also an end is connected high pressure cylinder, the other end runs through closed container, is positioned at the outside of closed container, and the refrigerant discharge tube of drain passageway is provided for the high pressure refrigerant after the compression of high pressure compressed assemblying body.
Described flow distribution device has similar semi-barrel shape shape.
Described flow distribution device is welded on the closed container inner face.
Also comprise being formed on the intermediate plate, allow between low-pressure cylinder and the high pressure cylinder flow refrigerant in the middle of press intercommunicating pore.
The invention has the beneficial effects as follows: secondary rotary compressor of the present invention, be filled with low pressure refrigerant in closed container inside, liquid refrigerants is trapped within closed container inside in the refrigerant of filling, have only gaseous coolant to flow into low pressure compressor units zoarium, can save liquid container, reduce the component number of secondary rotary compressor, reduce manufacturing time and manufacturing expense.In addition, in the secondary rotary compressor of the present invention, the refrigerant intake channel that allows refrigerant flow into closed container is connected with the refrigerant ostium, the refrigerant ostium is covered by flow distribution device, can prevent that refrigerant from flowing directly into low pressure compressor units zoarium, prevent that liquid refrigerants from flowing into low pressure compressor units zoarium, stably Driven Compressor.In addition, secondary rotary compressor of the present invention, its flow distribution device are as the criterion with refrigerant ostium center and rely on the below setting, and refrigerant can easily flow downward, can be more swimmingly to the fit supply of low pressure compressor units refrigerant.
Description of drawings
Fig. 1 is existing rotating type double-body compressor one illustration intention.
Fig. 2 is existing secondary rotary compressor one illustration intention.
Fig. 3 is the loop one illustration intention that comprises secondary rotary compressor of the present invention.
Fig. 4 is secondary rotary compressor one embodiment's schematic representation of the present invention.
Fig. 5 is the fit schematic representation of secondary rotary compressor low pressure compressor units of the present invention.
Fig. 6 is a secondary rotary compressor part schematic top plan view of the present invention.
Fig. 7 is a secondary rotary compressor part elevational schematic view of the present invention.
Fig. 8 is that a secondary rotary compressor part of the present invention is cut schematic representation.
Fig. 9 is secondary rotary compressor running shaft one embodiment's schematic representation of the present invention.
Figure 10 is the secondary rotary compressor schematic representation that is provided with the ascending pipe of one embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As shown in Figure 3, the heating loop of secondary rotary compressor of the present invention comprises parts such as secondary rotary compressor 100, condenser 300, vaporizer 400, phase splitter (phase seperator) 500 and four-way valve 600.Wherein, condenser 300 constitutes indoor unit, and compressor 100, vaporizer 400, phase splitter 500 constitute outdoor unit.The refrigerant of compressor 100 compressions flows through the condenser 300 that four-way valve 600 flow into indoor set, and compression refrigerant gas and surrounding atmosphere are carried out heat exchange generation condensation.The refrigerant that obtains condensation is transformed into low pressure refrigerant when flowing through expansion valve.The refrigerant that flows through expansion valve obtains gas-liquid separation in phase splitter 500, liquid refrigerants flows into vaporizer 400.Liquid refrigerants carries out heat exchange and evaporates in vaporizer 400, flow into liquid container 200 with gaseous state.Above-mentioned refrigerant flows through liquid container 200, compressor 100, refrigerant intake channel 151, flows into low pressure compressor units zoarium (figure slightly) again.In addition, the gaseous coolant that obtains separating in phase splitter 500 flows into compressor 100 by ascending pipe 153 (INJECTION).The refrigerant of pressing refrigerant in the middle of in the low pressure compressor units zoarium of compressor 100, obtaining compressing and flowing into by ascending pipe 153, obtain compression after flowing into the high pressure compressed assemblying body (figure slightly) of compressor 100, again by refrigerant discharge tube 152 rows to compressor 100 outsides.
As shown in Figure 4, secondary rotary compressor one embodiment of the present invention, secondary rotary compressor 100 begins to be provided with successively low pressure compressor units zoarium 120, intermediate plate 140, high pressure compressed assemblying body 130 and motor 110 from the bottom in closed container 101 inside.In addition, also comprise and run through the refrigerant intake channel 151 that closed container 101 is connected with liquid container 200, and the refrigerant discharge tube 152 of compression refrigerant row to the outside.
Low pressure compressor units fit 120 and high pressure compressed assemblying body 130 every in the centre, from the bottom, obtain setting to intermediate plate 140 with the order of the fit 120-intermediate plate of low pressure compressor units 140-high pressure compressed assemblying body 130.In addition, also can be from the bottom, stack setting with the order of high pressure compressed assemblying body-intermediate plate-low pressure compressor units zoarium.That is to say, with the sequence independence of low pressure compressor units zoarium 120, intermediate plate 140 and high pressure compressed assemblying body 130.Assemblying body bottom and top at lamination are respectively equipped with lower bearing 161 and upper bearing 162, when allowing the smooth and easy rotation of running shaft 113, support each component weight of the secondary compressor units zoarium of vertical stack.Upper bearing 162 is welded on the closed container 101 in three spot welding modes, and the weight of support secondary compressor units zoarium also is fixed on the closed container 101.
On closed container 101, be formed with the refrigerant ostium 101h that connects refrigerant intake channel 151.By refrigerant intake channel 151 and refrigerant ostium 101h, flow through the relatively low pressure refrigerant of vaporizer 400.The inside of closed container 101 is filled by low pressure refrigerant.Be filled in the refrigerant in the closed container 101, flow into low pressure compressor units zoarium 120.In addition, in the bottom of low pressure compressor units zoarium 120, be provided with lower bearing 161 and lower cover 171.Between lower bearing 161 and lower cover 171, press chamber Pm in the middle of being formed with.The middle chamber Pm of pressure is the space that the refrigerant of fit 120 compressions of low pressure compressor units is discharged, flow into the space of keeping in before the high pressure compressed assemblying body 130 as refrigerant, on the coolant path between low pressure compressor units fit 120 and the high pressure compressed assemblying body 130, play the buffer space effect.
Be positioned at the upper bearing 162 on high pressure compressed assemblying body 130 tops, be provided with exhaust port (figure slightly) at an upper portion thereof.By the high pressure refrigerant that the exhaust port of upper bearing 162 is discharged from high pressure compressed assemblying body 130, arrange to the outside by the refrigerant discharge tube 152 that is positioned at closed container 101 tops.
Inside at lower bearing 161, low pressure compressor units zoarium 120, intermediate plate 140 and high pressure compressed assemblying body 130 is formed with internal path 180, allows refrigerant flow to high pressure compressed assemblying body 130 from low pressure compressor units zoarium 120.Above-mentioned internal path 180 is parallel substantially with the axle of compressor, erectly is provided with.
As shown in Figure 5, fit 120 generalized sections of secondary rotary compressor low pressure compressor units of the present invention, low pressure compressor units zoarium 120 comprise that low-pressure cylinder 121, low pressure eccentric part 122, low nip drum ring 123, low pressure baffle plate 124, low pressure elastic member 125, low pressure refrigerant ostium 126 and middle pressure portal 127.Running shaft 113 passes the central part of low-pressure cylinder 121, fixing low pressure eccentric part 122 on running shaft 113.Low pressure eccentric part 122 can be formed on the running shaft 113.In addition, rotatably be provided with low nip drum ring 123 on low pressure eccentric part 122, during running shaft 113 rotations, low nip drum ring 123 rollably rotates along the inner peripheral surface of low-pressure cylinder 121.In the both sides of low pressure baffle plate 124, be formed with low pressure refrigerant ostium 126 and middle pressure portals 127.In addition, the space in the low-pressure cylinder 121 is divided by low pressure baffle plate 124 and low nip drum ring 123, compresses forward and backward refrigerant and coexists as in the low-pressure cylinder 121.Divide by low pressure baffle plate 124 and low nip drum ring 123, comprise that the part of low pressure refrigerant ostium 126 is called the low pressure refrigerant inflow S of portion
l, portal 127 part of pressure is pressed refrigerant discharge portion Dm in the middle of being called in the middle of comprising.Here, low pressure elastic member 125 provides elastic force in order to allow low pressure baffle plate 124 and low nip drum ring 123 keep contact condition to low pressure baffle plate 124.For low pressure baffle plate 124 is installed, the baffle holes 124h of the low-pressure cylinder 121 of formation laterally is penetratingly formed on the low-pressure cylinder 121.By baffle holes 124h, the moving of guide baffle plate 124, and provide the low pressure elastic member 125 of elastic force to run through low-pressure cylinder 121 to low pressure baffle plate 124, extend to closed container 101.One end of low pressure elastic member 125 contacts with low pressure baffle plate 124, and the other end contacts with closed container 101, can allow low pressure baffle plate 124 and low nip drum ring 123 keep the mode of contact condition, pushes away low pressure baffle plate 124.
In addition, on low-pressure cylinder 121, be formed with allow the refrigerant that obtains compressing in the low pressure compressor units zoarium 120 flow through to be formed at lower bearing 161 in the middle of press chamber Pm, flow into high pressure compressed assemblying body 130 in the middle of press intercommunicating pore 120a.The middle intercommunicating pore 120a that presses is overlapped for the refrigerant intake channel 151 that prevents and be inserted into low pressure refrigerant ostium 126, that is, form can avoid internal path 180 and refrigerant intake channel 151 overlapping structure and refrigerant intake channels 151 with staggering.Even with refrigerant intake channel 151 overlapping parts, also form with the structure of pressing refrigerant press chamber Pm to flow to high pressure compressed assemblying body 130 from the centre in the middle of can allowing.But under this situation, internal path 180 and refrigerant intake channel 151 overlapping sectional areas can cause compression loss, and are therefore not too suitable.In addition, in the time of around the circuitous refrigerant intake channel 151 of refrigerant, might reduce pressure.
As shown in Figure 5, when running shaft 113 rotations, low pressure eccentric part 122 also is rotated, and low nip drum ring 123 rolls along low-pressure cylinder 121 inwalls.At this moment, it is big that the volume of the low pressure inflow Sl of portion becomes, and makes the low pressure inflow Sl of portion be in low-pressure state, and refrigerant flows into by low pressure refrigerant ostium 126.On the contrary, the middle volume of discharge portion Dm of pressing diminishes, and middlely presses the refrigerant in the discharge portion Dm to obtain compression, portals by middle pressure and 127 discharges.Along with low pressure eccentric part 122 and low nip drum ring 123 continue rotation, low pressure inflow Sl of portion and the middle volume of discharge portion Dm of pressing continue to change, and every rotation is once discharged one time refrigerant.
Shown in Fig. 6~8, secondary rotary compressor of the present invention has stacked low pressure compressor units zoarium 120, intermediate plate 140, high pressure compressed assemblying body 130 successively from the bottom.As previously mentioned, low pressure refrigerant is filled in the closed container 101 by refrigerant intake channel 151, the low pressure refrigerant that is filled in closed container 101 flow into low-pressure cylinder 121 by low pressure refrigerant ostium 126, after obtaining compression, portal 127 rows to space---the middle chamber Pm of pressure that is limited by fit 120 bottom surfaces of low pressure compressor units and lower bearing 161 and lower cover 171 by middle pressure.Portal with pressure in the middle of can allowing and 127 to be formed with the centre pressure 161h that portals with middle the pressure of the lower bearing 161 overlapped structure of 161h of portalling, the portal bottom of 161h of pressures is provided with valve (figure slightly) in the middle of lower bearing 161, when pressing the refrigerant that compresses among the discharge portion Dm to reach certain pressure in the middle of the low pressure compressor units zoarium 120, the row of making it presses chamber Pm to the centre.Press the refrigerant of chamber Pm in the middle of being discharged to, once more by being formed at the middle intercommunicating pore 161a that presses of lower bearing 161, the middle intercommunicating pore 140a that presses that flows through the middle intercommunicating pore 120a of pressure that is formed at low-pressure cylinder 121 and be formed at intermediate plate 140 goes into groove 130a by the middle baric flow of high pressure cylinder 131 and flow into high pressure compressed assemblying body 130.Press in the middle of the lower bearing 161 intercommunicating pore 161a, low pressure compressor units zoarium in the middle of press intercommunicating pore 120a, intermediate plate 140 in the middle of press middle the baric flow of intercommunicating pore 140a and high pressure compressed assemblying body 130 to go into groove 130a, the internal path 180 that formation allows the refrigerant that obtains compressing in the low pressure compressor units zoarium 120 flow through.Here, the middle baric flow of high pressure compressed assemblying body 130 is gone into groove 130a, forms with the mode that can be communicated with the high pressure cylinder 131 inner spaces shape with tipper.Middle baric flow is gone into the bottom part of groove 130a, is in contact with one another with pressing intercommunicating pore 140a in the middle of the intermediate plate 140, forms the part of internal path 180.Press refrigerant in the middle of obtaining compressing, flow into high pressure cylinder 131 inside by middle baric flow hand-hole 130a.Middle press refrigerant to flow into high pressure compressed assemblying bodys 130 by internal path 180 after, high pressure compressed assemblying body 130 presses the centre refrigerant to be compressed into the high pressure refrigerant with the working principle identical with low pressure compressor units fit 120.
As mentioned above, need not independently manage the internal path 180 of pressing refrigerant to flow through in the middle of forming, and be formed in closed container 101 inside, can reduce noise, shorten internal path 180, therefore can reduce the refrigerant pressure loss that causes by resistance.In addition, the situation of pressing chamber Pm to be formed on lower bearing 161 with the centre above is that example is illustrated.But the middle chamber Pm that presses also can be formed on some in upper bearing 162 and the intermediate plate 140.At this moment, though concrete structure can be different, but can be formed on internal path 180 inside of secondary compressor units zoarium, by internal path 180 pressing the refrigerant water conservancy diversion in the middle of obtaining compressing in the low pressure compressor units zoarium 120 in high pressure compressed assemblying body 130.By said structure, press the water conservancy diversion path-length of refrigerant in the middle of can shortening, can reduce flow losses, owing to needn't can reduce noise and vibration through running through the connection of closed container 101 inside.
For fear of refrigerant intake channel 151 strut rail internal paths 180, when observing from the top, the low pressure compressor units fit 120 middle middle intercommunicating pore 140a of pressure of intercommunicating pore 120a, intermediate plate 140 and the middle baric flows of high pressure compressed assemblying body 130 of pressing that form internal path 180 are gone into groove 130a, isolate mutually with refrigerant intake channel 151.
Press intercommunicating pore 161a for fear of overlapping in the middle of the lower bearing 161, avoid low pressure refrigerant ostium 126 positions and form with the low pressure refrigerant ostium 126 that is connected low-pressure cylinder 121.Low pressure refrigerant ostium 126 is near the low pressure blade patchhole 124h that is used to insert low pressure blade 124.Low pressure refrigerant ostium 126 is far away more from low pressure blade 124, low-pressure cylinder 121 inner spaces can not compression refrigerant the dead point big more.
In addition, go into groove 130a at the middle baric flow of high pressure cylinder 131 and do not extend through top, but be provided with from the lower tilt ground of high pressure cylinder 131 from the bottom of high pressure cylinder 131.Here, middle baric flow is gone into the above-mentioned high pressure baffle holes 130a that groove 130a is positioned at close high pressure baffle plate (figure is slightly), and the high pressure baffle holes 134h that the high pressure baffle plate inserts.Press assemblying body identical with low pressure, middle baric flow hand-hole 130a will be advisable near high pressure baffle plate (figure slightly), and this can reduce the dead point in high pressure cylinder 131 inner spaces.
Low pressure baffle plate 124 and high pressure baffle plate (figure slightly) are positioned on the same axle.Thereby, be formed on the lower bearing 161 in the middle of middle the baric flow of pressing intercommunicating pore 161a and being formed on high pressure cylinder 131 go into groove 130a and can not be formed on the same axle, phase is across a certain distance in the horizontal direction.Among the 3rd embodiment of the present invention, for connect lower bearing 161 in the middle of press intercommunicating pore 161a and high pressure cylinder 131 in the middle of press intercommunicating pore 130a, press in the middle of the low-pressure cylinder 121 intercommunicating pore 120a and intermediate plate 140 in the middle of press intercommunicating pore 140a to have spiral-shaped substantially.Press the middle intercommunicating pore 140a that presses of intercommunicating pore 120a and intermediate plate 140 overlapped in the middle of the low-pressure cylinder 121 with helical.That is, press the middle intercommunicating pore 140a that presses of intercommunicating pore 120a and intermediate plate 140 overlapped in the middle of the low-pressure cylinder 121, form the screw type intercommunicating pore.Press intercommunicating pore 161a overlapping in the middle of one end of screw type intercommunicating pore and the lower bearing 161, press connectivity slot 130a overlapping in the middle of the other end and the high pressure cylinder 131.Press the end of intercommunicating pore 120a in the middle of the low-pressure cylinder 121, penetrate into the middle intercommunicating pore 161a that presses of lower bearing 161 communicatively.Promptly, press an end that joins with middle pressure intercommunicating pore 161a lower bearing 161 intercommunicating pore 120a in the middle of the low-pressure cylinder 121, connect low-pressure cylinder 121 by Vertical direction, and middle other parts of pressing intercommunicating pore 120a, direction from the end to end that connects, the middle intercommunicating pore 120a end portion of pressing is more and more higher, on the whole structure in the shape of a spiral.In addition, press intercommunicating pore 140a in contrast in the middle of the intermediate plate 140, the other end of screw type intercommunicating pore is promptly gone into the overlapping the other end of groove 130a with upper cylinder 130 middle baric flows, and the Vertical direction of pressing intermediate plate 140 connects.In addition, from lower bearing 161 in the middle of press the overlapping end to end of intercommunicating pore 161a, the middle upper end part of intercommunicating pore 120a of pressing uprises gradually, on the whole shape in the shape of a spiral.
When the middle pressure intercommunicating pore 140a of pressure intercommunicating pore 120a and intermediate plate 140 has helix structure in the middle of the low-pressure cylinder 121, refrigerant flow through low-pressure cylinder 121 in the middle of press intercommunicating pore 120a and intermediate plate 140 in the middle of when pressing intercommunicating pore 140a, suffered resistance can diminish.Certainly, press the middle intercommunicating pore 140a that presses of intercommunicating pore 120a and intermediate plate 140 not only can have helix structure in the middle of the low-pressure cylinder 121, can also have upper end or the constant shapes such as circular arc of lower end height.
In addition, when the middle pressure intercommunicating pore 140a of pressure intercommunicating pore 120a and intermediate plate 140 has spiral or arc structure in the middle of the low-pressure cylinder 121, can in the middle of spirality or arc, press core formation assembly hole 120b, the 140b of intercommunicating pore 120a, 140a.Lower bearing 161, low-pressure cylinder 121, intermediate plate 140, high pressure cylinder 131, upper bearing 162 are assembled by bolt usually.Refrigerant intake channel 151 will be avoided, middle intercommunicating pore 161a, 120a, 130a, 162a, the middle baric flow of pressing gone into groove 140a and middle pressure multiple parts and the internal paths such as 127 of portalling in the formation position of assembly hole 161b, the 120b of erection bolt, 130b, 140b, 162b.In addition, assembly hole 161b, 120b, 130b, 140b, 162b will be formed on three places at least, satisfy the condition that can be distributed to assembling force equably whole compressor assemblying body 105.Press the middle intercommunicating pore 140a that presses of intercommunicating pore 120a and intermediate plate 140 in the middle of the low-pressure cylinder 121, going into groove 130a with the middle baric flow of pressing intercommunicating pore 161a and high pressure cylinder 131 in the middle of the lower bearing 161 compares, its length is longer, therefore, hinder a plurality of assembly hole 161b of formation, 120b, 130b, 140b, 162b.Press in the middle of the low-pressure cylinder intercommunicating pore 120a and intermediate plate 140 in the middle of when pressing intercommunicating pore 140a to form shape such as spirality or circular arc, can in spirality or circular arc, be formed centrally assembly hole 161b, 120b, 130b, 140b, 162b, therefore help assembly hole 161b, 120b, 130b, 140b, 162b decentralized configuration on whole compressor assemblying body 105.
As shown in Figure 9, secondary rotary compressor running shaft of the present invention is combined with low pressure eccentric part 122 and high pressure eccentric part 132 on running shaft 113.In order to reduce vibration, the phase difference that low pressure eccentric part 122 and high pressure eccentric part 132 have 180 degree usually is combined on the running shaft 113.In addition, running shaft 113 is inner empty quill shafts, is formed with machine oil intercommunicating pore 113a in the bottom of low pressure eccentric part 122 and the top of high pressure eccentric part 132.In addition, in the inside of running shaft 113, insert thin board type stirrer (stirrer) 113b by helically bent.Stirrer 113b is embedded among the internal holes 113h of running shaft 113, rotation together thereupon when running shaft 113 rotations.The machine oil of closed container 101 bottoms upwards flows along stirrer 113b, a part is by being formed on the machine oil intercommunicating pore 113a of running shaft 113, flow out to low-pressure cylinder 121, intermediate plate 140 and high pressure cylinder 131, lubricated low nip drum ring 123 and high nip drum ring parts such as (figure slightly).
As shown in figure 10, the secondary rotary compressor schematic representation that is provided with ascending pipe of one embodiment of the invention.In the secondary rotary compressor of the present invention, because internal path 180 is not independently to manage, therefore the ascending pipe 153 that allows above-mentioned phase splitter 500 separated refrigerant gases flow into can be arranged on any position of internal path 180.Such as, in the middle of forming, press on some in the lower bearing 161, intermediate plate 140, high pressure cylinder 131 of chamber Pm and form penetration hole 153h.Then, ascending pipe is inserted among the penetration hole 153h, allows cold media air flow into.As shown in Figure 8, form penetration hole 153h in the middle pressure that connects low-pressure cylinder 121 127 the mode of portalling, perhaps after forming penetration hole 153h on the lower bearing 161, when in this penetration hole 153h, inserting ascending pipe 153, exist refrigerant to flow through in the process of middle chamber Pm of pressure and internal path 180, the shortcoming of the pressure loss can occur.But, owing to when flowing into liquid refrigerantss, press the bottom of chamber Pm in the middle of can flowing to, accumulated by ascending pipe 153, therefore have the stable advantage of action of compressor 100.
In addition, the refrigerant that the refrigerant ostium 101h by closed container 101 flows into if flow directly into the low pressure refrigerant ostium 126 of low-pressure cylinder 121, then might allow liquid refrigerants flow into low-pressure cylinder 121 inside.If liquid refrigerants flows into low pressure compressor units zoarium 120, then cause the action shakiness of low pressure compressor units zoarium 120.Therefore, the inner face at closed container 101 is provided with deflector (flow distribution device) 105.Deflector 105 has similar semicanal (half-pipe) shape or semi-barrel shape shape.Deflector 105 covers low pressure refrigerant ostiums 126, and the refrigerant that flows into by low pressure refrigerant ostium 126 is assigned to the upper end and the lower end of deflector 105, flows into closed container 101.Deflector 105 is by the inner face of solder bond at closed container 101.Owing to be provided with deflector 105, so refrigerant can not flow directly into low pressure compressor units zoarium 120.Therefore can prevent that liquid refrigerants from flowing into low pressure compressor units zoarium 120.That is, the liquid refrigerants by deflector 105 flows into can collect in the bottom of closed container 101, and can not flow into the low pressure refrigerant ostium 126 of low-pressure cylinder 121, can omit liquid container.
Here, the part that is positioned at closed container 101 refrigerant ostium 101h central lower of deflector 105 is advisable more than or equal to the part that is positioned at the top.Low pressure refrigerant will flow into by the low pressure refrigerant ostium 126 of low-pressure cylinder 121 in the low-pressure cylinder 121, therefore allows refrigerant flow to closed container 101 belows and is advisable.
At length, the partial-length that is positioned at closed container 101 refrigerant ostium 101h central lower is being advisable more than 2/3 of whole deflector 105 length.By this structure, can allow refrigerant more easily flow to closed container 101 bottoms.
Below,, the secondary rotary compressor working principle of one embodiment of the invention is described to Figure 10 with reference to Fig. 3.
The refrigerant in circularly cooling loop flows into closed container 101 by refrigerant intake channel 151.By the low pressure refrigerant that the refrigerant intake channel 151 that is inserted in refrigerant ostium 101h flows into, fill closed container 101 inside.Low pressure refrigerant flows into low-pressure cylinder 121 inside of low pressure compressor units zoarium 120 by low pressure refrigerant ostium 126.The refrigerant ostium 101h of closed container 101 and the low pressure refrigerant ostium of low-pressure cylinder 126 diversed bodies 105 block, and refrigerant can not flow directly into.
In addition, low pressure refrigerant ostium 126 penetrates into the inner side surface of low-pressure cylinder 121.Flow into the refrigerant of low-pressure cylinder 121 inner spaces by low pressure refrigerant ostium 126, under the relative movement effect of low-pressure cylinder 121 and low nip drum ring 123, under the volume-variation effect that the space took place that forms by low-pressure cylinder 121, low nip drum ring 123 and low pressure blade 124, be compressed.The refrigerant that obtains compressing flows into high pressure cylinder 131 from low-pressure cylinder 121 by internal path 180, by 130 compressions of high pressure compressed assemblying body.
Internal path 180 be allow refrigerant by the middle pressure of low-pressure cylinder 121 portal 127, the middle chamber Pm of pressure, lower bearing 161 in the middle of press intercommunicating pore 161a, low-pressure cylinder in the middle of press intercommunicating pore 120a, intermediate plate 140 in the middle of press the middle baric flow of intercommunicating pore 140, high pressure cylinder 131 to go into groove 130a, flow to a kind of path of high pressure cylinder 131 from low-pressure cylinder 121.Here, the middle chamber Pm of pressure can replace or omit with pipeline.
That is, the refrigerant by fit 120 compressions of low pressure compressor units portals 127 by the middle pressure that is formed at low-pressure cylinder 121, and row is to the middle chamber Pm of pressure that is formed at low-pressure cylinder 121 bottoms.The middle chamber Pm that presses is made of lower bearing 161 and lower cover 171.In addition, on lower bearing 161, with the middle pressure of low-pressure cylinder 121 portal 127 be formed with overlappingly in the middle of the pressure 161h that portals.And on lower bearing 161, be provided with the portal valve 191 of 161h of pressure in the middle of opening and closing.With under the upward pressure, the middle pressure of open low-pressure cylinder 121 portals 127 and the middle pressure of lower bearing 161 161h that portals to valve 191 in setting pressure.In the middle of being discharged to when opening, valve 191 presses the middle refrigerant of pressing of chamber Pm, go into groove 131a by the middle middle intercommunicating pore 140a of pressure of intercommunicating pore 120a, intermediate plate 140 and the middle baric flow of high pressure cylinder 131 of pressing of pressing intercommunicating pore 161a, low-pressure cylinder 121 in the middle of the lower bearing 161, flow into high pressure cylinder 131 inner spaces.Here, be connected with ascending pipe 153 on the pressure intercommunicating pore 120a in the middle of the low-pressure cylinder 121, the gaseous coolant that is separated by phase splitter 500 is ejected into internal path 180 by ascending pipe 153.The gaseous coolant pressure that phase splitter 500 separates is higher than the refrigerant pressure that flows through behind the vaporizer 400, when therefore phase splitter 500 separated refrigerant being compressed, can reduce the power consumption of compressor 100 after the refrigerant by fit 120 compressions of low pressure compressor units is fed to high pressure compressed assemblying body 130.
The refrigerant of fit 120 compressions of phase splitter 500 separated refrigerant and low pressure compressor units is gone into groove 130a by the middle baric flow of high pressure cylinder 131 and is flow into high pressure cylinder 131 inside.Above-mentioned refrigerant is in high pressure compressed assemblying body 130, and the working principle with identical with low pressure compressor units fit 120 is compressed into high pressure conditions.Be compressed into the refrigerant of high pressure conditions in high pressure compressed assemblying body 130, the high pressure tap hole 137 by high pressure cylinder 131, be formed at the high pressure tap hole 162h of upper bearing 162, row is to the discharge space D between upper bearing 162 and upper lid 172.On the top of upper bearing 162, be provided with valve 192, open and close the high pressure tap hole of high pressure cylinder 131 and the high pressure tap hole 162h of upper bearing 162.Thereby, have only high pressure compressed assemblying body 130 that refrigerant is compressed into certain pressure when above, above-mentioned valve 192 just can be opened the high pressure tap hole of high pressure cylinder 131 and the high pressure tap hole 162h of upper bearing 162, allows refrigerant row to discharging space D.The high pressure refrigerant is temporary in discharges space D, arranges to the outside by the refrigerant discharge tube 152 that is connected with upper lid 172 afterwards, flows into compressor 100, said process repeatedly behind the circularly cooling loop again.
In addition, in the bottom of closed container 101, be filled with the lubricant oil of lubricate compressors assemblying body 105.Lubricant oil arrives top along running shaft 113 internal flows under the stirrer 113b turning effort that is inserted in running shaft 113.By being formed at machine oil intercommunicating pore 103, be fed to low pressure compressor units fit 120 and high pressure compressed assemblying body 130, lubricate compressors assemblying body 105 afterwards.In addition, by being formed at vane hole 124h, the 134h of low-pressure cylinder 121 and high pressure cylinder 131, flow into low pressure compressor units fit 120 and high pressure compressed assemblying body 130, lubricate compressors assemblying body 105.
In sum, content of the present invention is not limited in the above-described embodiment, and the knowledgeable people in the same area can propose other embodiment easily within technological guidance's thought of the present invention, but this embodiment comprises within the scope of the present invention.
Claims (9)
1, a kind of secondary rotary compressor is characterized in that, comprises the closed container with refrigerant ostium and refrigerant tap hole; Be positioned at closed container inside, transmit the running shaft of rotating force; Have low-pressure cylinder, along the low pressure eccentric part of low-pressure cylinder inner side surface rotation, be combined in the low nip drum ring of low pressure eccentric part outside rotatably during the running shaft rotation, and the low pressure compressor units zoarium that separates the low pressure baffle plate of low-pressure cylinder inner space; Have high pressure cylinder, along the high pressure eccentric part of high pressure cylinder inner side surface rotation, be combined in the high nip drum ring of high pressure eccentric part outside rotatably during the running shaft rotation, and the high pressure compressed assemblying body that separates the high pressure baffle plate of high pressure cylinder inner space; Divide the intermediate plate between low-pressure cylinder and the high pressure cylinder; Be inserted in the refrigerant ostium of closed container, allow refrigerant flow into the refrigerant intake channel of closed container inside; The flow distribution device that the cold medium flux that flows into by the refrigerant intake channel is distributed.
2, secondary rotary compressor according to claim 1 is characterized in that, described flow distribution device is between the refrigerant ostium and low pressure compression cylinder of closed container.
3, secondary rotary compressor according to claim 2 is characterized in that, described flow distribution device, and its part that accounts for whole flow distribution device length 1/2 at least is positioned at refrigerant ostium center downside.
4, secondary rotary compressor according to claim 3 is characterized in that, described flow distribution device, and its part that accounts for whole flow distribution device length 2/3 at least is positioned at refrigerant ostium center downside.
5, secondary rotary compressor according to claim 2 is characterized in that, described flow distribution device covers whole refrigerant ostium.
6, secondary rotary compressor according to claim 1, it is characterized in that comprise that also an end is connected high pressure cylinder, the other end runs through closed container, be positioned at the outside of closed container, the refrigerant discharge tube of drain passageway is provided for the high pressure refrigerant after the compression of high pressure compressed assemblying body.
7, secondary rotary compressor according to claim 1 is characterized in that, described flow distribution device has similar semi-barrel shape shape.
8, secondary rotary compressor according to claim 7 is characterized in that, described flow distribution device is welded on the closed container inner face.
9, according to any the described secondary rotary compressor in the claim 1 to 8, it is characterized in that, also comprise being formed on the intermediate plate, allow flow between low-pressure cylinder and the high pressure cylinder refrigerant in the middle of press intercommunicating pore.
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CN200810151924A CN101684803A (en) | 2008-09-27 | 2008-09-27 | Two-stage rotating type compressor |
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CN200810151924A CN101684803A (en) | 2008-09-27 | 2008-09-27 | Two-stage rotating type compressor |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105840138A (en) * | 2016-05-31 | 2016-08-10 | 成都国光电子仪表有限责任公司 | Natural gas blowout control diverter valve |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105840138A (en) * | 2016-05-31 | 2016-08-10 | 成都国光电子仪表有限责任公司 | Natural gas blowout control diverter valve |
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