CN110410296A - Compressor and refrigeration equipment with it - Google Patents
Compressor and refrigeration equipment with it Download PDFInfo
- Publication number
- CN110410296A CN110410296A CN201910749974.2A CN201910749974A CN110410296A CN 110410296 A CN110410296 A CN 110410296A CN 201910749974 A CN201910749974 A CN 201910749974A CN 110410296 A CN110410296 A CN 110410296A
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- China
- Prior art keywords
- slide valve
- pass prot
- compressor
- mounting hole
- piston chamber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of compressor and with its refrigeration equipment.Compressor includes shell, and rack is set in shell, and piston chamber is provided in rack, and the first by-pass prot and the second by-pass prot are offered on the side wall of mounting hole, and the first by-pass prot is connected with piston chamber, and the second by-pass prot is connected with the inner cavity of shell；Slide valve assembly, which has to have sealing station and slide valve assembly that the first by-pass prot and the second by-pass prot seal, opens the first by-pass prot and the second by-pass prot so that the evacuation position that piston chamber is connected with the inner cavity of shell；Cover assembly, cover assembly is connected with the port of piston chamber, cover assembly offers exhaust bypass road, exhaust bypass road is connected with mounting hole, the part refrigerant being discharged from the exhaust passage of cover assembly can be entered in mounting hole by exhaust bypass road, so that slide valve assembly is located at sealing station or evacuation position.The leakproofness of the compressor can be effectively improved, the efficiency of the compressor is then improved.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, in particular to a kind of compressor and with its refrigeration equipment.
Background technique
It is well known that refrigerator system thermic load specifically includes that cabinet leaking heat, enabling leaking heat and storing thermic load.Greatly
Part-time, refrigerator are in stable operation stage, and the refrigerating capacity of refrigerator demand need to only be balanced with cabinet leaking heat, can maintain ice
The temperature of case system is stablized, and refrigerator body sealing performance is generally all preferably, and leaking heat is lower, it is often necessary to which compressor is stopped
Machine is adjusted, for freezer compressor, either fixed frequency or frequency conversion, and because the leaking heat under its stable state is lower, demand refrigeration
Measure it is low, compressor be required to shut down controlled, Homes Using TV is below 100%.
When refrigerator open or increase storing, system just needs High cooling power that temperature is pulled low to set temperature.At this point, for
Frequency-changeable compressor can be by controlling frequency, and operation high frequency carries out cooling processing；For invariable frequency compressor, in refrigerator system and pressure
Contracting machine match when, need to consider draw low temperature capability, match larger displacement compressor, meet refrigerator at this time big refrigerating capacity the needs of.
The huge discharge of frequency is either still determined using the high frequency operation of frequency conversion, energy consumption of compressor is relatively high, and converter technique needs are matched
Expensive controller and motor are closed, cost is significantly increased.
For frequency-changeable compressor, when refrigerator system needs that steady working condition is maintained to run, rating requirements cooling capacity is low, compressor
Low-frequency operation, compressor oils when low-frequency operation, and difficulty is big, and oil circuit is designed to industry pain spot and difficult point.
Therefore the full-sealed reciprocating compressor of exploitation varying capacity is more conducive to the energy conservation and stable operation of system, and leads to
The combination transfiguration control of operation upper frequency is crossed, so that frequency-changeable compressor is operated in upper frequency and the lower cooling capacity of output, solves frequency conversion
Compressor low frequency fuel feeding problem.
In the prior art, by Suck and exhaust pressure difference spool control valve movement realize compressor bypass channel unlatching and
It closes.Wherein, corresponding in bypass passageways is intermediate pressure, and pressure value is higher than pressure of inspiration(Pi) lower than pressure at expulsion.Control is logical
Pressure of inspiration(Pi) is connected in road on one side, connects pressure at expulsion on one side.Because there are pressure differences, it is easy to cause high pressure gas to low-pressure gas
Leakage problem is influenced such as during specific experiment by machining accuracy, and the high pressure gas in control channel is from bypass passageways to gas
Cylinder internal leakage causes compressor transfiguration to fail, and compressor efficiency reduces etc., the normal operation of strong influence positive displacement compressor.
Summary of the invention
The main purpose of the present invention is to provide a kind of compressor and with its refrigeration equipment, to solve in the prior art
The low problem of compressor efficiency.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of compressor, comprising: shell；Machine
Frame, rack are set in shell, and piston chamber is provided in rack, and mounting hole is provided in rack, is opened up on the side wall of mounting hole
There are the first by-pass prot and the second by-pass prot, the first by-pass prot is connected with piston chamber, and the second by-pass prot is connected with the inner cavity of shell
It is logical；Slide valve assembly, slide valve assembly are movably disposed in mounting hole, and slide valve assembly, which has, bypasses the first by-pass prot and second
The sealing station and slide valve assembly of hole sealing, which have, opens the first by-pass prot and the second by-pass prot so that piston chamber and shell
The evacuation position that is connected of inner cavity；Cover assembly, cover assembly are connected with the port of piston chamber, and cover assembly offers row
Gas bypass, exhaust bypass road are connected with mounting hole, in compressor operation process, are discharged from the exhaust passage of cover assembly
Part refrigerant can be entered in mounting hole by exhaust bypass road, so that slide valve assembly is located at sealing station or evacuation position；Wherein,
The low-pressure channel being connected with the inner cavity of shell is provided on the side wall of mounting hole.
Further, the first by-pass prot is coaxially disposed with the second by-pass prot.
Further, the diameter of the second by-pass prot is greater than or equal to the diameter of the first by-pass prot.
Further, the axis of mounting hole is horizontally disposed, and the first end of mounting hole is connected with exhaust bypass road,
The second end of mounting hole is connected by low-pressure channel with the inner cavity of shell.
Further, exhaust bypass road is coaxially disposed with low-pressure channel, and the internal diameter of low-pressure channel is less than the interior of mounting hole
Diameter.
Further, slide valve assembly includes: slide valve, and slide valve is movably disposed in mounting hole；Elastic component, elastic component are set
It is placed in mounting hole, between slide valve and low-pressure channel, elastic component is used to apply pretightning force so that slide valve to slide valve elastic component
Initial position be located at evacuation position.
Further, when slide valve is located at evacuation position, the end face towards elastic component of slide valve far from the first by-pass prot and
Second by-pass prot setting, when slide valve is located at sealing station, the outer surface of slide valve is located at the first by-pass prot and the second by-pass prot
And the first by-pass prot and the second by-pass prot are sealed.
Further, slide valve assembly further include: sealing ring, sealing ring are sheathed on the outer of one end of the separate elastic component of slide valve
On circumferential surface.
Further, the installation annular groove for accommodating sealing ring is provided on the outer peripheral surface of slide valve, elastic component is in nature
When state, the geometric center lines of the radial direction along slide valve of annular groove and the axis of the first by-pass prot and/or the second by-pass prot are installed
The distance of line is that L1 installs the several of the radial direction along slide valve of annular groove when compressor is in maximum pressure differential operating status
What center line is L2 at a distance from the axis of the first by-pass prot and/or the second by-pass prot, wherein L1-L2≤D, D are the first bypass
The internal diameter in hole, L2 > 0.
Further, the stroke of slide valve is L, wherein L=L1-L2.
Further, cover assembly includes: cylinder cover, and cylinder cover is connected with the port of piston chamber, cylinder cover have with
The exhaust cavity that the exhaust passage of piston chamber is connected；Valve plate, valve plate between cylinder cover and the port of piston chamber, open by valve plate
Equipped with exhaust bypass road, mounting hole is connected by exhaust bypass road with exhaust cavity.
According to another aspect of the present invention, a kind of refrigeration equipment, including compressor are provided, compressor is above-mentioned compression
Machine.
It applies the technical scheme of the present invention, using the rack and slide valve assembly of the structure, so that rack and slide valve assembly
Structure is simple, good seal performance, can effectively improve the leakproofness of the compressor, then improve the effect of the compressor
Rate.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic cross-sectional view of the first embodiment of compressor according to the present invention；
Fig. 2 shows the schematic cross-sectional views of the embodiment of slide valve assembly according to the present invention；
Fig. 3 shows the schematic cross-sectional view of the second embodiment of compressor according to the present invention；
Fig. 4 shows the schematic cross-sectional view of the 3rd embodiment of compressor according to the present invention；
Fig. 5 shows the schematic cross-sectional view of the fourth embodiment of compressor according to the present invention.
Wherein, the above drawings include the following reference numerals:
10, rack；11, mounting hole；111, low-pressure channel；12, the first by-pass prot；13, the second by-pass prot；
20, slide valve assembly；21, slide valve；211, annular groove is installed；22, elastic component；23, sealing ring；
30, cover assembly；31, cylinder cover；311, exhaust bypass road；32, valve plate.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Term be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be understood that it is thoroughly and complete to these embodiments are provided so that disclosure herein, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make that identical device is presented with like reference characters, thus omission retouches them
It states.
In conjunction with shown in Fig. 1 to Fig. 5, according to an embodiment of the invention, providing a kind of compressor.
As depicted in figs. 1 and 2, which includes shell, rack 10, slide valve assembly 20 and cover assembly 30.Rack 10
It is set in shell, piston chamber is provided in rack 10, mounting hole 11 is provided in rack 10, is opened up on the side wall of mounting hole 11
There are the first by-pass prot 12 and the second by-pass prot 13, the first by-pass prot 12 is connected with piston chamber, the second by-pass prot 13 and shell
Inner cavity is connected.Slide valve assembly 20 is movably disposed in mounting hole 11, and slide valve assembly 20 has 12 He of the first by-pass prot
The sealing station of second by-pass prot 13 sealing.And slide valve assembly 20 have the first by-pass prot 12 and the second by-pass prot 13 are opened
So that the evacuation position that piston chamber is connected with the inner cavity of shell.Cover assembly 30 is connected with the port of piston chamber.Lid group
Part 30 offers exhaust bypass road 311.Exhaust bypass road 311 is connected with mounting hole 11, in compressor operation process, from lid
The part refrigerant of the exhaust passage discharge of component 30 can be entered in mounting hole 11 by exhaust bypass road 311, so that slide valve assembly
20 are located at sealing station or evacuation position.Wherein, the low pressure being connected with the inner cavity of shell is provided on the side wall of mounting hole 11
Channel 111.
In the present embodiment, using the rack of the structure and slide valve assembly so that rack and the structure of slide valve assembly it is simple,
Good seal performance, can effectively improve the leakproofness of the compressor, then improve the efficiency of the compressor.
As shown in figure 3, in the present embodiment, the first by-pass prot 12 is coaxially disposed with the second by-pass prot 13.Second bypass
The diameter in hole 13 is greater than or equal to the diameter of the first by-pass prot 12.In this way setting enable to be located at the indoor refrigerant of piston can
It is drained into the inner cavity of shell in time, and since rack is to be directly mounted at that shell is intracorporal, so the inner cavity of shell forms pressure
The suction chamber of contracting machine.
The axis of mounting hole 11 is horizontally disposed, and the first end of mounting hole 11 is connected with exhaust bypass road 311, peace
The second end in dress hole 11 is connected by low-pressure channel 111 with the inner cavity of shell.Setting enables to slide valve assembly close in this way
During slidably reciprocating between envelope position and evacuation position, uniform force improves the reliability of slide valve assembly.
Exhaust bypass road 311 is coaxially disposed with low-pressure channel 111, and the internal diameter of low-pressure channel 111 is less than mounting hole 11
Internal diameter.Setting enables to one end of slide valve assembly to be located at high-pressure side in this way, and the other end is located at low-pressure side, passes through slide valve assembly two
The pressure difference that end is formed realizes the automatic adjustment of position, improves the sensitivity that compressor realizes transfiguration.
Specifically, slide valve assembly 20 includes slide valve 21 and elastic component 22.Slide valve 21 is movably disposed in mounting hole 11.
Elastic component 22 is set in mounting hole 11, and between slide valve 21 and low-pressure channel 111, elastic component 22 is used for cunning elastic component 22
Valve 21 applies pretightning force so that the initial position of slide valve 21 is located at evacuation position.Wherein, elastic component 22 is preferably spring.
When slide valve 21 is located at evacuation position, the end face towards elastic component 22 of slide valve 21 is far from the first by-pass prot 12 and the
Two by-pass prots 13 setting, when slide valve 21 is located at sealing station, the outer surface of slide valve 21 is located at by the first by-pass prot 12 and second
It is sealed at through-hole 13 and by the first by-pass prot 12 and the second by-pass prot 13.The sealing that can be improved slide valve assembly is set in this way
Performance.
In order to further improve the leakproofness of slide valve assembly, slide valve assembly 20 is also provided with sealing ring 23.Sealing ring 23
It is sheathed on the outer peripheral surface of one end of the separate elastic component 22 of slide valve 21.
Further, the installation annular groove 211 for accommodating sealing ring 23, elastic component 22 are provided on the outer peripheral surface of slide valve 21
When in the raw, the geometric center lines and the first by-pass prot 12 and the of the radial direction along slide valve 21 of annular groove 211 are installed
The distance of the axis of two by-pass prots 13 be L1, when compressor be in maximum pressure differential operating status, install annular groove 211 along cunning
The geometric center lines of the radial direction of valve 21 are L2 at a distance from the axis of the first by-pass prot 12 and the second by-pass prot 13, wherein
L1-L2≤D, D are the internal diameter of the first by-pass prot 12, L2 > 0.The stroke of slide valve 21 is L, L=L1-L2.Setting is further in this way
The leakproofness of ground raising slide valve assembly
Wherein, cover assembly 30 includes cylinder cover 31 and valve plate 32.Cylinder cover 31 is connected with the port of piston chamber.Cylinder
Lid 31 has the exhaust cavity being connected with the exhaust passage of piston chamber (as shown in figure 1 shown in A).Valve plate 32 be located at cylinder cover 31 with
Between the port of piston chamber, valve plate 32 offers exhaust bypass road 311, and mounting hole 11 is empty by exhaust bypass road 311 and exhaust
Chamber is connected.Setting will timely can be passed through in mounting hole from the refrigerant from exhaust passage in this way, to brake slide valve assembly, be mentioned
The high transfiguration sensitivity of compressor.
Compressor in above-described embodiment can be also used for technical field of refrigeration equipment, i.e., another party according to the present invention
Face, provides a kind of refrigeration equipment, including compressor, and compressor is the compressor in above-described embodiment.Wherein, the refrigeration equipment
It can be refrigerator.
Specifically, using compressor provided by the present application, varying capacity full-sealed reciprocating compressor leakage problem is solved.It is small
When type full enclosed reciprocating type piston compressor carries out varying capacity adjusting using bypass mode, the high pressure that is easy to appear in control piper
Gas leakage problem into low-pressure gas influences the realization of compressor transfiguration adjustment.
The slide valve assembly of the compressor is that a kind of full-sealed reciprocating compressor applied to variable capacity is sealed with slide valve
Structure solves variable conpacitance compressor control channel mesohigh gas leakage problem, realizes that compressor capacity is adjusted, further decreases
Refrigerator system power consumption.Improving the leakage that the existing sliding valve structure used is easy to appear causes compressor capacity to adjust failure problem.
The rack of positive displacement compressor have a side to the first by-pass prot and mounting structure；First bypass bore dia is D, installation
Structure is made of the circular hole of two sections of (mounting hole and low-pressure channel) different-diameters.Wherein, mounting hole is directly D2, low-pressure channel
Diameter be D3, wherein D2 > D3.The slide valve assembly of transfiguration control is installed on the macropore that diameter is D2, and diameter is the aperture of D3
For being connected to housing hollow low pressure air suction pressure.Slide valve shape is a column, and it is close to be equipped with one in column slide valve outer round surface
Seal mounting groove, sealing ring are installed in this mounting groove.When slide valve assembly both ends no pressure difference, spring is in free state,
Sealing ring mounting groove is L1 apart from bypass passageways distance.When compressor is run under maximum pressure differential state, spring is compressed,
Seal groove centre distance bypass passageways centre distance is L2, slide valve assembly stroke e=L1-L2.It is required that L2 has to be larger than 0, and L1-
L2≤D.In order to guarantee the sealing effect of sealing ring, slide valve sealing ring mounting groove should may be provided at cunning as far as possible far from bypass passageways
The one end of valve far from bypass passageways.
Following three kinds of shapes can be divided into according to the air-breathing of refrigerator system and the pressure difference of exhaust in compressor according to slide valve assembly
State:
State 1: under shutdown status: spring is in initial compressed state, and design spring power is F1, and refrigerator system is stablized
Operation is that pressure difference is P1, and slide valve cross-sectional area is A1, designs F1=P1*A1.I.e. when system pressure difference is lower than P1, slide valve
It does not move, is in complete bypass state shown in fig. 5.
State 2: compressor start -- maximum differential pressure process.After compression starts, pressure difference is established rapidly, slide valve assembly side
For high pressure gas, side is low-pressure gas, and pressure difference promotes slide valve assembly to move simultaneously compressed spring to low-pressure side, when pressure difference is in P1
When increasing to Pmax range, amount of spring compression increases, and bypass passageways are gradually capped, compressor displacement with amount of spring compression increasing
It is gradually increased greatly, it is close that system is made to draw low temperature capability enhancing at full capacity.
The sealing ring on slide valve assembly is squeezed and deformed under pressure at this time, is intercepted high pressure gas, is prevented it to low pressure
Side leakage.The distance of the seal groove position nearest apart from bypass passageways is L2 at this time.It is required that L2 has to be larger than 0, i.e., sealing ring is not
It can be drawn out, if L2, less than 0, sealing ring is drawn out sliding area, when pressure decreases, sliding area can not be returned, caused
Sealing failure.Slide valve assembly stroke (e=L1-L2)=D under this state.
State 3: refrigerator is from maximum differential pressure to the pilot process of stable state transition, and the refrigerating capacity of demand gradually drops at this time
Low, system Suck and exhaust pressure difference gradually becomes smaller, and amount of spring compression becomes smaller, and slide valve assembly part blocks bypass passageways at this time, becomes
Positive displacement compressor part bypass runs intermediate discharge capacity.Slide valve assembly stroke (e=L1-L2) < D at this time.
State 4: refrigerator stable operation stage, refrigerator only needs the refrigerating capacity of a very little at this time, and compressor is run at this time
The minimum injection rate bypassed completely.
According to slide valve assembly pressure at two ends difference size variation, realize compressor displacement with the automatic control tune of pressure difference
Compressor actual displacement can be realized with the variation automatic regulation function of refrigerator load without controller in section, and control is at low cost,
And it is more suitable for the energy conservation of refrigerator system.By the way that seal groove is arranged on slide valve assembly, cooperates the mode of sealing ring, greatly improve
The control gas leakage problem of positive displacement compressor realizes the adjustable of full-sealed reciprocating compressor discharge capacity.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Than that described above, it is also necessary to which explanation is " one embodiment " spoken of in the present specification, " another implementation
Example ", " embodiment " etc. refer to that specific features, structure or the feature of embodiment description is combined to be included in the application summary
Property description at least one embodiment in.It is not centainly to refer to the same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that is advocated is knot when describing a specific features, structure or feature in conjunction with any embodiment
Other embodiments are closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of compressor characterized by comprising
Shell；
Rack (10), the rack (10) are set in the shell, are provided with piston chamber, the rack on the rack (10)
(10) it is provided on mounting hole (11), offers the first by-pass prot (12) and the second by-pass prot on the side wall of the mounting hole (11)
(13), first by-pass prot (12) is connected with the piston chamber, the inner cavity of the second by-pass prot (13) and the shell
It is connected；
Slide valve assembly (20), the slide valve assembly (20) are movably disposed in the mounting hole (11), the slide valve assembly
(20) there is the sealing station for sealing first by-pass prot (12) and second by-pass prot (13) and the slide valve group
Part (20), which has, opens first by-pass prot (12) and second by-pass prot (13) so that the piston chamber and the shell
The evacuation position that the inner cavity of body is connected；
Cover assembly (30), the cover assembly (30) are connected with the port of the piston chamber, and the cover assembly (30) is opened
Equipped with exhaust bypass road (311), the exhaust bypass road (311) is connected with the mounting hole (11), compressor operation process
In, the part refrigerant being discharged from the exhaust passage of the cover assembly (30) can enter institute by the exhaust bypass road (311)
It states in mounting hole (11), so that the slide valve assembly (20) is located at the sealing station or the evacuation position；
Wherein, the low-pressure channel (111) being connected with the inner cavity of the shell is provided on the side wall of the mounting hole (11).
2. compressor according to claim 1, which is characterized in that first by-pass prot (12) and second by-pass prot
(13) it is coaxially disposed.
3. compressor according to claim 1, which is characterized in that the diameter of second by-pass prot (13) is greater than or equal to
The diameter of first by-pass prot (12).
4. compressor according to claim 1, which is characterized in that the axis of the mounting hole (11) is set in the horizontal direction
It sets, the first end of the mounting hole (11) is connected with the exhaust bypass road (311), and the second end of the mounting hole (11) is logical
The low-pressure channel (111) is crossed to be connected with the inner cavity of the shell.
5. compressor according to claim 1, which is characterized in that the exhaust bypass road (311) and the low-pressure channel
(111) it is coaxially disposed, the internal diameter of the low-pressure channel (111) is less than the internal diameter of the mounting hole (11).
6. compressor according to claim 1, which is characterized in that the slide valve assembly (20) includes:
Slide valve (21), the slide valve (21) are movably disposed in the mounting hole (11)；
Elastic component (22), the elastic component (22) are set in the mounting hole (11), and the elastic component (22) is located at the cunning
Between valve (21) and the low-pressure channel (111), the elastic component (22) be used for the slide valve (21) apply pretightning force so that
The initial position of the slide valve (21) is located at the evacuation position.
7. compressor according to claim 6, which is characterized in that when the slide valve (21) are located at the evacuation position,
The end face towards the elastic component (22) of the slide valve (21) is far from first by-pass prot (12) and second by-pass prot
(13) it is arranged, when the slide valve (21) is located at the sealing station, the outer surface of the slide valve (21) is located at by the of described first
It is carried out at through-hole (12) and second by-pass prot (13) and by first by-pass prot (12) and second by-pass prot (13)
Sealing.
8. compressor according to claim 6, which is characterized in that the slide valve assembly (20) further include:
Sealing ring (23), the sealing ring (23) are sheathed on the outer of one end far from the elastic component (22) of the slide valve (21)
On circumferential surface.
9. compressor according to claim 8, which is characterized in that be provided on the outer peripheral surface of the slide valve (21) for holding
Receive the installation annular groove (211) of the sealing ring (23), the elastic component (22) in the raw when, the installation annular groove
(211) geometric center lines of the radial direction along the slide valve (21) and first by-pass prot (12) and/or described second
The distance of the axis of by-pass prot (13) is L1, when the compressor is in maximum pressure differential operating status, the installation annular groove
(211) geometric center lines of the radial direction along the slide valve (21) and first by-pass prot (12) and/or described second
The distance of the axis of by-pass prot (13) is L2, wherein L1-L2≤D, D are the internal diameter of first by-pass prot (12), L2 > 0.
10. compressor according to claim 9, which is characterized in that the stroke of the slide valve (21) is L, wherein L=L1-
L2。
11. compressor according to claim 1, which is characterized in that the cover assembly (30) includes:
Cylinder cover (31), the cylinder cover (31) are connected with the port of the piston chamber, and the cylinder cover (31) has and institute
State the exhaust cavity that the exhaust passage of piston chamber is connected；
Valve plate (32), the valve plate (32) is between the cylinder cover (31) and the port of the piston chamber, the valve plate
(32) the exhaust bypass road (311) is offered, the mounting hole (11) passes through the exhaust bypass road (311) and the exhaust
Cavity is connected.
12. a kind of refrigeration equipment, including compressor, which is characterized in that the compressor is any one of claims 1 to 11 institute
The compressor stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112049769A (en) * | 2020-08-11 | 2020-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston compressor and refrigeration equipment |
| CN112780541A (en) * | 2020-12-23 | 2021-05-11 | 加西贝拉压缩机有限公司 | Effective cylinder volume self-adaptive adjusting structure for refrigeration compressor |
| CN113027730A (en) * | 2021-03-02 | 2021-06-25 | 加西贝拉压缩机有限公司 | Low-voltage starting refrigeration compressor |
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| CN113027730A (en) * | 2021-03-02 | 2021-06-25 | 加西贝拉压缩机有限公司 | Low-voltage starting refrigeration compressor |
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Application publication date: 20191105 |