CN106704178A - Scroll compressor and decompression drainage structure thereof - Google Patents
Scroll compressor and decompression drainage structure thereof Download PDFInfo
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- CN106704178A CN106704178A CN201510509396.7A CN201510509396A CN106704178A CN 106704178 A CN106704178 A CN 106704178A CN 201510509396 A CN201510509396 A CN 201510509396A CN 106704178 A CN106704178 A CN 106704178A
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- increasing enthalpy
- pressure release
- enthalpy
- pressure
- orbiter
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Abstract
The invention discloses a scroll compressor and a decompression drainage structure thereof. The decompression drainage structure comprises a static scroll plate and a dynamic scroll plate. The static scroll plate is provided with a static plate enthalpy-increase passage connected with an external enthalpy increase device. The dynamic scroll plate is equipped with a dynamic plate enthalpy-increase passage. The dynamic enthalpy-increase passage has an enthalpy-increase communicating hole communicated with an intake communicating port of the static plate enthalpy-increase passage and a compression chamber enthalpy-increase hole communicated with a compression chamber formed by cooperation of the dynamic scroll plate and the static scroll plate. A sealing surface of the static scroll plate and the dynamic scroll plate has a decompression drainage channel which is connected to the enthalpy-increase communicating hole in the non-enthalpy-increase stage. The decompression drainage channel is communicated with a decompression cavity with pressure lower than pressure in the dynamic enthalpy-increase passage in the non-enthalpy-increase stage. The non-enthalpy-increase stage is the stage when an enthalpy-increase hole of the compression chamber is blocked by a scroll wrap of the static scroll plate. By the use of the decompression drainage structure, expansion loss and power consumption of a compressor are reduced.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of screw compressor and its pressure release are drawn
Flow structure.
Background technology
When environment temperature is relatively low, the evaporating temperature of air-conditioner is relatively low, can cause the compressor pressure of air-conditioner
Contracting causes the rapid elevated situation of delivery temperature than increase.When delivery temperature exceedes the work that compressor is allowed
When making scope, high frequent start-stop even compressor can be caused to burn.
In order to overcome compressor low-temperature heating performance poor, delivery temperature is high and the problem of reliability reduction, with
As a example by screw compressor, existing ripe technological means is to spray into temperature and pressure relatively in compression chamber
Low refrigerant gas or refrigerant air-liquid mixture, and then drop to delivery temperature；Meanwhile, by upper
Increasing enthalpy setting is stated, equivalent to the soakage that increased compressor refrigerant, the heating capacity of compressor can also be carried
It is high.
At present, the operating characteristics of Gas-supplying enthalpy-increasing is in compression chamber：When compression cavity pressure reaches a design
Start (compared with low pressure) to carry out Gas-supplying enthalpy-increasing to compression chamber during value；When compression chamber continues to compress, pressure liter
Height stops Gas-supplying enthalpy-increasing to (higher pressure) during another design load.Wherein, increasing enthalpy passage and compression chamber
On-off action relies primarily on scroll wrap in scroll plate and covers the increasing enthalpy hole of increasing enthalpy passage to realize.
But, it is to the polishing increasing enthalpy rule of compression chamber periodically：Connection (compression chamber low pressure)-mend
Gas (compression chamber constantly compresses)-closure (compression chamber high pressure)-connection (compression chamber low pressure).Work as compression
Machine is operated in when under Gas-supplying enthalpy-increasing operating mode, and it is Gas-supplying enthalpy-increasing pressure to increase the pressure in hole path.Work as compressor
When running to increasing enthalpy passage and compression chamber and having just turned off, pressure and the compression chamber for connecting before in increasing enthalpy passage
Interior pressure is consistent, and its pressure is higher.And increasing enthalpy passage with compression chamber when being just connected, the pressure of compression chamber
Power is relatively low, and the high temperature and high pressure gas in pressure increasing enthalpy passage higher are connected in the compression chamber with lower pressure
When, can be expanded to compression chamber, expansion-loss is in turn resulted in, the rising of compressor power consumption is unfavorable for
The efficient performance of compressor.
Therefore, expansion-loss and compressor power consumption how are reduced, is that those skilled in the art need solution at present
Technical problem certainly.
The content of the invention
It is an object of the invention to provide a kind of pressure release flow guiding structure, to reduce expansion-loss and compressor power consumption.
Present invention also offers a kind of screw compressor with above-mentioned pressure release flow guiding structure.
In order to solve the above technical problems, the present invention provides pressure release flow guiding structure, including fixed scroll and dynamic whirlpool
Capstan,
The quiet disk increasing enthalpy path being connected with outside enthalpy-increasing device is provided with the fixed scroll；
Moving plate increasing enthalpy path is provided with the orbiter, the Moving plate increasing enthalpy path has to be used for and institute
State quiet disk increasing enthalpy path air inlet connected entrance connection increasing enthalpy intercommunicating pore and with for the orbiter and institute
State the compression chamber increasing enthalpy hole of the compression chamber connection that fixed scroll is cooperatively formed；
Have in non-increasing enthalpy stage and the increasing on the fixed scroll and the sealing minute surface of the orbiter
The pressure release drainage channel of enthalpy intercommunicating pore connection, the pressure release drainage channel is in the non-increasing enthalpy stage and less than described
The pressure release cavity connection of pressure in Moving plate increasing enthalpy path；
The non-increasing enthalpy stage is the rank that the compression chamber increasing enthalpy hole is blocked by the scroll wrap of the fixed scroll
Section.
Preferably, in above-mentioned pressure release flow guiding structure, the sealed mirror face includes the fixed scroll towards institute
State the quiet disk sealing minute surface and the orbiter of orbiter towards the Moving plate sealed mirror of the fixed scroll
Face；
The air inlet connected entrance is located on the quiet disk sealing minute surface, and the increasing enthalpy intercommunicating pore is located at described dynamic
On disk sealing minute surface.
Preferably, in above-mentioned pressure release flow guiding structure, the pressure release drainage channel includes close positioned at the quiet disk
Finish filming the drainage trough on face and the gas pressure relief slot on Moving plate sealing minute surface；
The gas pressure relief slot is connected with the pressure release cavity, and the drainage trough is in non-increasing enthalpy stage and the pressure release
Groove is connected.
Preferably, in above-mentioned pressure release flow guiding structure, the gas pressure relief slot away from the orbiter center one
End connects with the outer wall of the orbiter.
Preferably, in above-mentioned pressure release flow guiding structure, the drainage trough has to be used for and the increasing enthalpy intercommunicating pore
The first straight trough section of connection and the second straight trough section for being connected with the gas pressure relief slot, the gas pressure relief slot is straight
Groove；
The second groove section overlaps with the gas pressure relief slot described in when the drainage trough is connected with the gas pressure relief slot.
Preferably, in above-mentioned pressure release flow guiding structure, the Moving plate increasing enthalpy path is located at outside the orbiter
Processing hole on wall is screwed hole, and sealing-plug is provided with the processing hole.
Present invention also offers a kind of screw compressor, including pressure release flow guiding structure, the pressure release drainage knot
Structure is the pressure release flow guiding structure as described in above-mentioned any one.
Preferably, in above-mentioned screw compressor, the pressure release cavity is the upper bracket of the screw compressor
The middle pressure chamber body surrounded with the orbiter.
Preferably, in above-mentioned screw compressor, also including connect the screw compressor housing exterior walls and
The communication means of the pressure release drainage channel of the pressure release flow guiding structure, are provided with low in the communication means
The magnetic valve closed when the compression cavity pressure；
The pressure-releasing chamber body is located at the hull outside of the screw compressor.
The pressure release flow guiding structure that the present invention is provided, (the non-increasing enthalpy rank in the state of compressor not increasing enthalpy tonifying Qi
Section), orbiter is rotated relative to fixed scroll so that the compression chamber increasing enthalpy hole on orbiter is quiet
The scroll wrap of scroll plate is blocked, and air inlet connected entrance also mutually staggers with increasing enthalpy intercommunicating pore so that Moving plate increases
Enthalpy path forms the structure of closing, and its interior pressure is higher；By setting pressure release drainage channel so that pressure release
Drainage channel orbiter relative to fixed scroll rotate in the presence of with Moving plate increasing enthalpy communication, move
Disk increasing enthalpy path is connected with pressure release cavity, and now, the pressure in pressure-releasing chamber body is less than in Moving plate increasing enthalpy path
Pressure, and then cause Moving plate increasing enthalpy path in pressure reduction, by reducing gas in Moving plate increasing enthalpy path
The pressure of body, reduces the swell increment that the gas in Moving plate increasing enthalpy path expands to the relatively low compression chamber of pressure,
The gas of Moving plate increasing enthalpy path when Moving plate increasing enthalpy path is connected with compression chamber again is reduced to swollen in compression chamber
Swollen expansion-loss, effectively reduces the power consumption of compressor.
Present invention also offers a kind of screw compressor with above-mentioned pressure release flow guiding structure.Let out due to above-mentioned
Pressure flow guiding structure has above-mentioned technique effect, and the screw compressor with above-mentioned pressure release flow guiding structure should also have
There is same technique effect, no longer tire out one by one state herein.
Brief description of the drawings
The structural representation of the screw compressor that Fig. 1 is provided by the embodiment of the present invention；
The schematic cross-sectional view of the orbiter that Fig. 2 is provided by the embodiment of the present invention；
The structural representation of the orbiter that Fig. 3 is provided by the embodiment of the present invention；
The schematic cross-sectional view of the fixed scroll that Fig. 4 is provided by the embodiment of the present invention；
The structural representation of the fixed scroll that Fig. 5 is provided by the embodiment of the present invention；
The first state schematic diagram of the pressure release flow guiding structure that Fig. 6 is provided by the embodiment of the present invention；
Second view of the pressure release flow guiding structure that Fig. 7 is provided by the embodiment of the present invention；
The third state schematic diagram of the pressure release flow guiding structure that Fig. 8 is provided by the embodiment of the present invention；
4th view of the pressure release flow guiding structure that Fig. 9 is provided by the embodiment of the present invention；
5th view of the pressure release flow guiding structure that Figure 10 is provided by the embodiment of the present invention；
6th view of the pressure release flow guiding structure that Figure 11 is provided by the embodiment of the present invention；
7th view of the pressure release flow guiding structure that Figure 12 is provided by the embodiment of the present invention；
8th view of the pressure release flow guiding structure that Figure 13 is provided by the embodiment of the present invention；
Figure 14 is pressure history schematic diagram in increasing enthalpy path in the prior art；
Pressure history schematic diagram in the increasing enthalpy path that Figure 15 is provided by the embodiment of the present invention；
Wherein,
Fixed scroll -1, quiet disk seals minute surface -1a, and orbiter -2, Moving plate seals minute surface -2a, ten
Word slip ring -3, upper bracket -4, main balance weight -5, driving rotor -6, drive shaft -7, lower carriage -
8, radial direction oil hole -9, lower cover -10, bolt -11, lower thrust plate -12, oil guide piece -13, countershaft
Hold -14, housing -15, base bearing -16, Moving plate increasing enthalpy path -17, compression chamber increasing enthalpy hole -17a,
Radial direction increasing enthalpy drainage channel -17b, increasing enthalpy intercommunicating pore -17c, processing hole -17d, quiet disk increasing enthalpy path -
18, quiet disk radial direction increasing enthalpy passage -18a, quiet dish axle to increasing enthalpy passage -18b, air inlet connected entrance -18c,
Outside increasing enthalpy passage connecting tube -19, axial air intake duct -20, upper lid -21, gas pressure relief slot -22, drainage
Groove -23, compression chamber -24, middle pressure chamber body -25, the first crank angle -26, the second crank angle -
27。
Specific embodiment
Core of the invention is to provide a kind of pressure release flow guiding structure, to reduce expansion-loss and compressor power consumption.
Present invention also offers a kind of screw compressor with above-mentioned pressure release flow guiding structure.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and specifically
The present invention is described in further detail for implementation method.
Refer to Fig. 1-Fig. 5, the structural representation of the screw compressor that Fig. 1 is provided by the embodiment of the present invention；
The schematic cross-sectional view of the orbiter that Fig. 2 is provided by the embodiment of the present invention；Fig. 3 is the embodiment of the present invention
The structural representation of the orbiter for being provided；The fixed scroll that Fig. 4 is provided by the embodiment of the present invention
Schematic cross-sectional view；The structural representation of the fixed scroll that Fig. 5 is provided by the embodiment of the present invention.
In this specific embodiment, pressure release flow guiding structure includes fixed scroll 1 and orbiter 2, quiet
The quiet disk increasing enthalpy path 18 being connected with outside enthalpy-increasing device is provided with scroll plate 1, is set on orbiter 2
Moving plate increasing enthalpy path 17 is equipped with, Moving plate increasing enthalpy path 17 has is used for what is connected with quiet disk increasing enthalpy path 18
Increasing enthalpy intercommunicating pore 17c and connected with the compression chamber 24 cooperatively formed for orbiter 2 and fixed scroll 1
Compression chamber increasing enthalpy hole 17a；In the increasing enthalpy intercommunicating pore 17c and quiet disk increasing enthalpy path of Moving plate increasing enthalpy path 17
During 18 connection, the increasing enthalpy fluid of outside enthalpy-increasing device is by quiet disk increasing enthalpy path 18 by increasing enthalpy intercommunicating pore 17c
Flow into after Moving plate increasing enthalpy path 17 by compression chamber increasing enthalpy hole 17a runners compression chamber 24.May be appreciated
It is that quiet disk increasing enthalpy path 18 has the air inlet connected entrance 18c for being connected with increasing enthalpy intercommunicating pore 17c,
There is air inlet connected entrance 18c Moving plate increasing enthalpy path 17 when overlapping position to increase with quiet disk with increasing enthalpy intercommunicating pore 17c
Enthalpy path 18 is connected.
Also, have in non-increasing enthalpy stage and increasing enthalpy on fixed scroll 1 and the sealing minute surface of orbiter 2
The pressure release drainage channel of intercommunicating pore 17c connections, pressure release drainage channel increases in the non-increasing enthalpy stage with less than Moving plate
The pressure release cavity connection of pressure in enthalpy path 17.The non-increasing enthalpy stage is compression chamber increasing enthalpy hole 17a by quiet vortex
The stage that the scroll wrap of disk 1 is blocked.
Pressure release flow guiding structure provided in an embodiment of the present invention, it is (non-in the state of compressor not increasing enthalpy tonifying Qi
The increasing enthalpy stage), orbiter 2 is rotated relative to fixed scroll so that the compression chamber on orbiter 2
Increasing enthalpy hole 17a is blocked by the scroll wrap of fixed scroll 1, and air inlet connected entrance 18c and increasing enthalpy intercommunicating pore 17c
Also mutually stagger so that Moving plate increasing enthalpy path 17 forms the structure of closing, its interior pressure is higher；By setting
Put pressure release drainage channel so that pressure release drainage channel is in orbiter 2 relative to the work that fixed scroll is rotated
Connected with Moving plate increasing enthalpy path 17 with lower, Moving plate increasing enthalpy path 17 is connected with pressure release cavity, now, is let out
Pressure in pressure cavity causes Moving plate increasing enthalpy path 17 less than the pressure in Moving plate increasing enthalpy path 17
Interior pressure reduction, by reducing the pressure of gas in Moving plate increasing enthalpy path 17, reduces Moving plate increasing enthalpy path
The swell increment that gas in 17 expands to the relatively low compression chamber 24 of pressure, reduces Moving plate increasing enthalpy path 17
The gas of Moving plate increasing enthalpy path 17 is damaged to the expansion expanded in compression chamber 24 when being connected with compression chamber 24 again
Lose, effectively reduce the power consumption of compressor.
As shown in figure 4, quiet disk increasing enthalpy path 18 includes quiet disk radial direction increasing enthalpy passage 18a, quiet dish axle to increasing
Enthalpy passage 18b and air inlet connected entrance 18c, special-shaped slot is provided with air inlet connected entrance 18c.Set by above-mentioned
Put, quiet disk increasing enthalpy path 18 can directly be processed using equipment such as electric drills.
As shown in Figure 14 and Figure 15, compression chamber increasing enthalpy hole 17a is hidden completely by the scroll wrap of fixed scroll 1
The first crank angle 26 during gear, when compression chamber increasing enthalpy hole 17a just starts to be connected with compression chamber 24 second
Crank angle 27, the first pressure P1 of compression chamber 24 during compression chamber increasing enthalpy hole 17a connection compression chambers 24,
Compression chamber increasing enthalpy hole 17a blocked by the scroll wrap of fixed scroll 1 before second pressure P2, drawn by pressure release
The 3rd pressure P3 that circulation road is connected with pressure release cavity, wherein, the 3rd pressure P3 is also the pressure of pressure release cavity
Power, the 3rd pressure P3 is expressed as pressure pressure in a certain outside, can be back pressure.In the first crank angle 26
With the angular interval between the second crank angle 27 be compression chamber increasing enthalpy hole 17a by the vortex of fixed scroll 1
The angular interval that tooth is blocked completely.
By above-mentioned setting, it can be seen that (P2-P3)<(P2-P1) it is, provided in an embodiment of the present invention to let out
Pressure flow guiding structure, reduces barometric gradient of the inner refrigerant of Moving plate increasing enthalpy path 17 to compression intraluminal inflation,
Expansion-loss is reduced, so as to reduce useless power consumption, efficient compression performance is obtained.
In order to ensure the break-make of air inlet connected entrance 18c and increasing enthalpy intercommunicating pore 17c, air inlet connected entrance 18c is located at
On quiet disk sealing minute surface 1a, increasing enthalpy intercommunicating pore 17c is located on Moving plate sealing minute surface 2a.Wherein, Jing Panmi
The face 1a that finishes filming is fixed scroll 1 towards the face of orbiter 2, and Moving plate sealing minute surface 2a is orbiter 2
Towards the face of fixed scroll 1, the two faces contact with each other sealing, and are sealing minute surface.
By above-mentioned setting, rotated relative to fixed scroll 1 by orbiter 2 so that air inlet is connected
Mouth 18c and increasing enthalpy intercommunicating pore 17c mutually staggers, the sealing minute surface 2a sealings of air inlet connected entrance 18c driven discs,
Increasing enthalpy intercommunicating pore 17c ensure that air inlet connected entrance 18c and increasing enthalpy by the sealing minute surface 1a sealings of quiet disk
Being fully disconnected when intercommunicating pore 17c mutually staggers, effectively prevent the situation of leakage.
It is of course also possible to air inlet connected entrance 18c and increasing enthalpy intercommunicating pore 17c are arranged at into other positions, such as will
Air inlet connected entrance 18c is arranged on the outer wall of fixed scroll 1, and increasing enthalpy intercommunicating pore 17c is arranged at orbiter
2 outer wall, the break-make of air inlet connected entrance 18c and increasing enthalpy intercommunicating pore 17c is realized by external connecting pipe.
The setting of pressure release drainage channel for convenience, pressure release drainage channel includes being located at quiet disk sealing minute surface 1a
On drainage trough 23 and the gas pressure relief slot 22 on Moving plate sealing minute surface 2a, gas pressure relief slot 22 and pressure release cavity
Connection.That is, pressure release drainage channel is not connected with pressure release cavity always, but by the phase of orbiter 2
For the rotation of fixed scroll 1, the change of gas pressure relief slot 22 and the relative position of drainage trough 23 is realized, non-
Increasing enthalpy stage, drainage trough 23 is connected with gas pressure relief slot 22.By above-mentioned setting, effectively ensure that pressure release is drawn
The situation that circulation road disconnects in the increasing enthalpy stage, improves enthalpy-increasing effect.
The drainage trough 23 on minute surface 1a only can also be sealed in quiet disk, drainage trough 23 is direct with pressure release cavity
Connection.
As shown in fig. 6, outside increasing enthalpy fluid is entered by quiet disk increasing enthalpy path 18 and Moving plate increasing enthalpy passage 17
Enter compression chamber 24, realize increasing enthalpy gas compensation function.Now, drainage trough 23, gas pressure relief slot 22 and Moving plate connect
Through hole 17c mutually disconnects.That is, pressure release drainage channel is disconnected, and increasing enthalpy gas is only capable of by quiet disk increasing enthalpy path
The 18 increasing enthalpy passages connected with Moving plate increasing enthalpy passage 17 enter in 24 in compression chamber, do not influence increasing enthalpy
Tonifying Qi effect.
As shown in fig. 7, after completing to be acted on to the Gas-supplying enthalpy-increasing of compression chamber 24, orbiter 2 is relative to quiet whirlpool
Capstan 1 is rotated.In the rotation process by Fig. 6 to Fig. 7, all the time in the increasing enthalpy stage.And this stage
In, drainage trough 23, gas pressure relief slot 22 and Moving plate intercommunicating pore 17c are remained off.Quiet disk increasing enthalpy path
18 and Moving plate increasing enthalpy passage 17 remain connected state.In the present embodiment, air inlet connected entrance 18c
End is provided with special-shaped slot, in order to control the function of opening and closing air supply passage.
Moving plate turns to Fig. 8 location status from Fig. 7 location status, and increasing enthalpy process terminates, compression chamber increasing enthalpy
Hole 17a is blocked completely by the scroll wrap of fixed scroll 1 so that it is not connected with compression chamber 24, also,
Moving plate intercommunicating pore 17c, drainage trough 23 and gas pressure relief slot 22 are moved closer to.
Fig. 9, Figure 10 and Figure 11 be Moving plate intercommunicating pore 17c, drainage trough 23 and gas pressure relief slot 22 from start connect
Lead to the state diagram that will be switched off.
Orbiter 2 runs to such as Fig. 9 states, compression chamber 24 and constantly compresses from such as Fig. 8 states, compresses
Chamber increasing enthalpy hole 17a is gradually distance from compression chamber 24.In the present embodiment, gas pressure relief slot 22 and drainage trough 23 be not
Disconnected to be close to but do not connect, drainage trough is connected with increasing enthalpy intercommunicating pore 17c first.When orbiter 2 runs to
During such as Fig. 9 positions, compression chamber increasing enthalpy hole 17a is blocked by the scroll wrap of quiet disk vortex 1 completely, and Moving plate increases
Enthalpy passage 17 is disconnected with compression chamber 24, and now the pressure in Moving plate increasing enthalpy passage 17 remains increasing enthalpy
Passage closes the pressure in preceding compression chamber 24 with compression chamber 24.
When orbiter 2 is rotated, gas pressure relief slot 22 starts to connect with drainage trough 23.As shown in Figure 10, deposit
The high-pressure refrigerant in Moving plate increasing enthalpy passage 17 is stored up by increasing enthalpy intercommunicating pore 17c, drainage trough 23 and is let out
Indent 23 is by the middle pressure chamber body 25 of drainage pressure release to the periphery of orbiter 2.Middle pressure chamber body 25 is by being vortexed
The upper bracket 4 of compressor is surrounded with orbiter 2, therefore, pressure is less than in Moving plate increasing enthalpy passage 17
Gas pressure.High-pressure refrigerant in Moving plate increasing enthalpy passage 17 by gradually pressure release to middle pressure chamber body 25 in
Pressure it is consistent.
It should be noted that venting duration and compression chamber increasing enthalpy hole 17a, increasing enthalpy intercommunicating pore 17c, gas pressure relief slot
22 is poor relevant with the relative position of drainage trough 23 and scroll plate transverse tooth thickness, it is only necessary to ensures there is compression chamber increasing enthalpy hole
17a by quiet disk be vortexed 1 the angular interval blocked completely of scroll wrap and the interval in increasing enthalpy intercommunicating pore 17c,
The state that gas pressure relief slot 22 is connected with drainage trough 23.
When orbiter 2 is relatively rotated to position as shown in figure 11, i.e. compression chamber relative to fixed scroll 1
When increasing enthalpy hole 17a will connect compression chamber 24 again, gas pressure relief slot 22 will be switched off with drainage oil 23, i.e.,
Moving plate increasing enthalpy passage 17 will disconnect with middle pressure chamber body 25, and pressure leak process closes to an end.
The position of Figure 12 is that compression chamber increasing enthalpy hole 17a and compression chamber 24 just connect state in the near future, increasing
Enthalpy fluid carries out increasing enthalpy tonifying Qi by compression chamber increasing enthalpy hole 17a into compression chamber 24.
As shown in Figure 15, the pressure of middle pressure chamber body 25 is the 3rd pressure P3, i.e. in the present embodiment,
Gas pressure relief slot 22 is connected away from the one end at the center of orbiter 2 with the outer wall of orbiter 2.That is, gas pressure relief slot
22 directly connect with middle pressure chamber body 25.By above-mentioned setting, the structure of pressure release drainage channel is effectively simplified.
Guiding channel can also be set, and the gas pressure relief slot 22 that will do not connected with the outer wall of orbiter 2 is with
Pressure cavity 25 is connected.
In order to ensure pressure release effect, drainage trough 23 has be used for connecting with increasing enthalpy intercommunicating pore 17c first straight
Groove section and the second straight trough section for being connected with gas pressure relief slot 22, gas pressure relief slot 22 is straight trough；Drainage trough 23 with
The second groove section overlaps with gas pressure relief slot 22 when gas pressure relief slot 22 is connected.
In the embodiment of the present invention, for the ease of processing, Moving plate increasing enthalpy passage 17 is logical including the drainage of radial direction increasing enthalpy
Road 17b and the compression chamber increasing enthalpy hole 17a, the increasing enthalpy intercommunicating pore 17c that communicate therewith and outside orbiter 2
Processing hole 17d on wall, increasing enthalpy drainage channel 17b are directly by processing hole 17d by process equipments such as electric drills
Process.In order to avoid being leaked at processing hole 17d, processing hole 17d is screwed hole, processes hole
Sealing-plug is provided with 17d.
The embodiment of the present invention also provides a kind of screw compressor, including pressure release flow guiding structure, pressure release drainage knot
Structure is the pressure release flow guiding structure of any one as described above.Because there is above-mentioned pressure release flow guiding structure above-mentioned technology to imitate
Really, the screw compressor with above-mentioned pressure release flow guiding structure has same technique effect, not another herein
One tired states.
As shown in figure 1, the screw compressor in the present embodiment includes quiet disk vortex 1, orbiter 2, ten
Word slip ring 3, upper bracket 4, main balance weight 5, driving rotor 6, bent axle 7, lower carriage 8, radial direction oil hole
9th, lower cover 10, bolt 11, lower thrust plate 12, oil guide piece 13, supplementary bearing 14, housing 15, main shaft
Hold 16, Moving plate increasing enthalpy passage 17, quiet disk increasing enthalpy path 18, outside increasing enthalpy passage connecting tube 19, axial direction
Air intake duct 20 and upper lid 21.During compressor operation, anti-reverse component is opened, and refrigerant is sucked quiet by air intake duct
Scroll plate air entry, is compressed in the compression chamber 24 that fixed scroll 1 and orbiter 2 are formed, and presses
Contracting is discharged in the confined space that housing 15 is formed after ending by fixed scroll exhaust outlet, is finally vented from housing
Mouth discharge, completes the process of air-breathing-compression-exhaust.Motor driven crankshafts 7 rotate, orbiter 2
Under the drive of bent axle 7 and the position-limiting action of cross slip-ring 3, parallel rotation is done relative to quiet disk vortex 1.
Outside increasing enthalpy passage connecting tube 19 runs through housing 15, for connecting outside enthalpy-increasing device and quiet disk increasing enthalpy path
18。
In the present embodiment, pressure release cavity is that the upper bracket 4 of screw compressor and orbiter 2 are surrounded
Middle pressure chamber body 25.By above-mentioned setting, the setting of pressure release drainage channel is facilitated so that it passes dynamic whirlpool
The outer wall of capstan 2 can be connected with pressure release cavity (middle pressure chamber body 25).
As shown in figure 14, in a upper embodiment, the pressure in middle pressure chamber body 25 is the 3rd pressure P3,
Now still suffer from certain expansion-loss.In order to further reduce expansion-loss, directly Moving plate can be increased
Pressure pressure release in enthalpy passage 17 to compression chamber increasing enthalpy hole 17a connected with compression chamber 24 when pressure P1,
Now compression chamber 24 is interior with Moving plate increasing enthalpy passage 17 almost without expansion-loss.
Therefore, in another embodiment, screw compressor also include connection screw compressor outer wall and
The communication means of the pressure release drainage channel of pressure release flow guiding structure, are provided with less than compression chamber in communication means
The magnetic valve closed during pressure in 24；Pressure-releasing chamber body is located at the outside of screw compressor.
By taking the structure that pressure release drainage channel includes drainage trough 23 and gas pressure relief slot 22 as an example, gas pressure relief slot 22 away from
The one end at the center of orbiter 2 connects with the outer wall of orbiter 2.Now, pressure release drainage channel goes out
Mouthful it is located at on the outer wall of orbiter 2, and communication means can be fixed in the housing 15 of compressor,
Interconnecting part of the one end of communication means under non-increasing enthalpy state with the outlet of pressure release drainage channel, it is another
End stretch out the outer wall of housing 15 and be arranged at the outside of housing 15 and pressure release container with pressure release cavity connects
It is logical., wherein it is desired to explanation, above-mentioned pressure release container can be relatively low with the pressure such as the air inlet of compressor
Position connection, in order to ensure the not higher than first pressure P1 of the pressure in pressure-releasing chamber body.Also, connection
The magnetic valve closed during pressure (the first pressure P1) in less than compression chamber 24 is provided with part.Pass through
The parts such as magnetic valve are set, in order to the pressure in Moving plate increasing enthalpy passage 17 is reduced into first pressure P1.
Embodiment of the present invention is as a example by carrying out the structure of increasing enthalpy tonifying Qi with single compressed chamber.Can also answer
For the structure of multiple compression chamber increasing enthalpy hole increasing enthalpies；The compression chamber increasing enthalpy of single hole or diplopore can also be applied to
Hole either alternatively or simultaneously carries out the structure of increasing enthalpy tonifying Qi to multiple compression chambers.As shown in figure 13, it is only necessary to ensure pressure
Contracting chamber increasing enthalpy hole 17a can be completed to block and pass through in the stage pressure release drainage channel (drainage trough by scroll wrap
23 and gas pressure relief slot 22 connect) the increasing enthalpy passage of 17a pair is connected with the compression chamber increasing enthalpy hole, and (Moving plate increasing enthalpy is led to
Road 17) pressure release.
Pressure release flow guiding structure provided by the present invention is described in detail above.Tool used herein
Body example is set forth to principle of the invention and implementation method, and the explanation of above example is only intended to
Help understands the method for the present invention and its core concept.It should be pointed out that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvement can also be carried out to the present invention
And modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (9)
1. a kind of pressure release flow guiding structure, including fixed scroll (1) and orbiter (2), its feature exist
In,
The quiet disk increasing enthalpy path (18) being connected with outside enthalpy-increasing device is provided with the fixed scroll (1)；
Moving plate increasing enthalpy path (17), the Moving plate increasing enthalpy path (17) are provided with the orbiter (2)
With the increasing enthalpy intercommunicating pore connected for the air inlet connected entrance (18c) with the quiet disk increasing enthalpy path (18)
(17c) and with the compression chamber cooperatively formed for the orbiter (2) and the fixed scroll (1)
(24) the compression chamber increasing enthalpy hole (17a) of connection；
Have in non-increasing enthalpy rank on the fixed scroll (1) and the sealing minute surface of the orbiter (2)
The pressure release drainage channel that section is connected with the increasing enthalpy intercommunicating pore (17c), the pressure release drainage channel is in non-increasing
The enthalpy stage connects with the pressure release cavity less than the interior pressure of the Moving plate increasing enthalpy path (17)；
The non-increasing enthalpy stage is the compression chamber increasing enthalpy hole (17a) by the whirlpool of the fixed scroll (1)
The stage that rotation tooth is blocked.
2. pressure release flow guiding structure according to claim 1, it is characterised in that the sealed mirror bread
Include the fixed scroll (1) and seal minute surface (1a) and described towards the quiet disk of the orbiter (2)
Orbiter (2) seals minute surface (2a) towards the Moving plate of the fixed scroll (1)；
The air inlet connected entrance (18c) is located at the quiet disk and seals on minute surface (1a), the increasing enthalpy connection
Hole (17c) is located at the Moving plate and seals on minute surface (2a).
3. pressure release flow guiding structure according to claim 2, it is characterised in that the pressure release drainage is led to
Road includes the drainage trough (23) being located on quiet disk sealing minute surface (1a) and positioned at Moving plate sealing
Gas pressure relief slot (22) on minute surface (2a)；
The gas pressure relief slot (22) connects with the pressure release cavity, and the drainage trough (23) is in non-increasing enthalpy rank
Section is connected with the gas pressure relief slot (22).
4. pressure release flow guiding structure according to claim 3, it is characterised in that the gas pressure relief slot (22)
One end away from the orbiter (2) center connects with the outer wall of the orbiter (2).
5. pressure release flow guiding structure according to claim 3, it is characterised in that the drainage trough (23)
With for being connected with the increasing enthalpy intercommunicating pore (17c) the first straight trough section and for the gas pressure relief slot
(22) the second straight trough section of connection, the gas pressure relief slot (22) is straight trough；
Second groove section described in when the drainage trough (23) connects with the gas pressure relief slot (22) and the pressure release
Groove (22) overlaps.
6. the pressure release flow guiding structure according to claim any one of 1-5, it is characterised in that described dynamic
Processing hole (17d) of disk increasing enthalpy path (17) on the orbiter (2) outer wall is screwed hole,
Sealing-plug is provided with the processing hole (17d).
7. a kind of screw compressor, including pressure release flow guiding structure, it is characterised in that the pressure release drainage knot
Structure is the pressure release flow guiding structure as described in claim any one of 1-6.
8. screw compressor according to claim 7, it is characterised in that the pressure release cavity is institute
State the middle pressure chamber body (25) that the upper bracket (4) of screw compressor is surrounded with the orbiter (2).
9. screw compressor according to claim 7, it is characterised in that also including connecting the whirlpool
The communication means of the pressure release drainage channel of housing (15) outer wall and the pressure release flow guiding structure of compressor are revolved,
The magnetic valve closed when less than the compression chamber (24) interior pressure is provided with the communication means；
The housing (15) that the pressure-releasing chamber body is located at the screw compressor is outside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509396.7A CN106704178B (en) | 2015-08-18 | 2015-08-18 | Screw compressor and its pressure release flow guiding structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509396.7A CN106704178B (en) | 2015-08-18 | 2015-08-18 | Screw compressor and its pressure release flow guiding structure |
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| Publication Number | Publication Date |
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| CN106704178A true CN106704178A (en) | 2017-05-24 |
| CN106704178B CN106704178B (en) | 2018-11-30 |
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| CN201510509396.7A Active CN106704178B (en) | 2015-08-18 | 2015-08-18 | Screw compressor and its pressure release flow guiding structure |
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| CN107620705A (en) * | 2017-09-04 | 2018-01-23 | 珠海格力电器股份有限公司 | Screw compressor and air-conditioning system |
| CN110792601A (en) * | 2019-11-14 | 2020-02-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor enthalpy-increasing structure, compressor and air conditioner |
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| CN107620705A (en) * | 2017-09-04 | 2018-01-23 | 珠海格力电器股份有限公司 | Screw compressor and air-conditioning system |
| CN110792601A (en) * | 2019-11-14 | 2020-02-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor enthalpy-increasing structure, compressor and air conditioner |
| CN110792601B (en) * | 2019-11-14 | 2021-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor enthalpy-increasing structure, compressor and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704178B (en) | 2018-11-30 |
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