CN109974364A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN109974364A CN109974364A CN201711450551.8A CN201711450551A CN109974364A CN 109974364 A CN109974364 A CN 109974364A CN 201711450551 A CN201711450551 A CN 201711450551A CN 109974364 A CN109974364 A CN 109974364A
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- Prior art keywords
- pipeline section
- diversion column
- flow
- transition pipeline
- refrigerator
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- 230000007704 transition Effects 0.000 claims abstract description 68
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 238000005057 refrigeration Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- 238000007710 freezing Methods 0.000 claims description 13
- 230000008014 freezing Effects 0.000 claims description 13
- 208000004141 microcephaly Diseases 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 2
- 210000005239 tubule Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 description 27
- 239000003507 refrigerant Substances 0.000 description 17
- 230000009467 reduction Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/30—Insulation with respect to sound
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of refrigerators, including evaporator, the capillary being connect with evaporator and the first fluid delivery pipe for connecting evaporator and capillary, wherein, first fluid delivery pipe includes a First Transition pipeline section, one diversion column is set in First Transition pipeline section, diversion column extends along the extending direction of First Transition pipeline section, to achieve the purpose that reduce air-flow flow noise for dredge smoothly to the fluid entered in First Transition pipeline section.
Description
Technical field
The present invention relates to family's electro-technical fields, more particularly to refrigerator.
Background technique
In the refrigeration systems such as existing refrigerator, refrigerator-freezer, high pressure refrigerant sprays into the evaporation of low-pressure end by the throttling of capillary
Guan Zhong, for the refrigerant at capillary jet port there are violent gas-liquid phase transition, refrigerant flow rate is in transonic speed region, can generate relatively strong
Strong noise influences refrigerator entirety sound quality.
The existing scheme for improving injection noise, mainly lengthens the length of jet segment coupling tube, so that gas-liquid phase transition is steady.
In addition, achieving the effect that sound insulation also by clay is wrapped up outside injection line.But in actual design, transition length of tube
Can not endless, lengthen the improvement of coupling tube than relatively limited, and clay attach scheme can not from be at all solve make an uproar
Sound problem, palliative, effect is not significant, and also results in cost increase.
Summary of the invention
In view of the above problems, it is an object of the present invention to provide one kind to overcome the above problem or at least partly solve
The certainly refrigerator of the above problem.
A further object of the present invention is to reduce fluid flow noise and improve refrigerator entirety sound quality.
The present invention provides a kind of refrigerator, including evaporator, the capillary being connect with evaporator and connection evaporator with
The first fluid delivery pipe of capillary, wherein
First fluid delivery pipe includes a First Transition pipeline section, and a diversion column is arranged in First Transition pipeline section；
Diversion column along First Transition pipeline section extending direction extend, with for enter First Transition pipeline section in fluid into
Row is dredged smoothly, achievees the purpose that reduce pneumatic noise.
Optionally, the central axes of diversion column are overlapped with the central axes of First Transition pipeline section.
Optionally, diversion column is tapered, and the microcephaly of tapered diversion column is towards the inlet side direction of First Transition pipeline section.
Optionally, the end of diversion column towards First Transition pipeline section inlet side is tapered.
Optionally, the cone angle of tapered diversion column1Meet: 15 ° of < α160 ° of <.
Optionally, diversion column towards First Transition pipeline section inlet side end cone angle2Meet: 15 ° of < α260 ° of <.
Optionally, the internal diameter D of the diameter D1 of diversion column and First Transition pipeline section meets: D1/D < 1/2.
Optionally, the length of diversion column and the length of First Transition pipeline section are roughly equal.
Optionally, refrigerator, further includes:
Refrigerating chamber；
Capillary includes refrigeration capillary, and evaporator includes for providing the refrigeration evaporator of cooling capacity to refrigerating chamber.
Optionally, refrigerator, further includes:
Freezing chamber；
Capillary includes freezing capillary, and evaporator includes for providing the refrigerating evaporator of cooling capacity to freezing chamber.
Refrigerator of the invention, evaporator and intercapillary first fluid delivery pipe have a First Transition pipeline section, the
A diversion column is provided in one transitional pipe segment, diversion column dredge smoothly the high-velocity fluid entered in First Transition pipeline section,
Reduce the turbulence effect of incoming flow, smooth fluid flow state, to achieve the purpose that reduce air-flow flow noise.
Further, in refrigerator of the invention, diversion column is tapered, and microcephaly's the first mistake of direction of tapered diversion column
The end in the inlet side direction or diversion column towards First Transition pipeline section inlet side of crossing pipeline section is tapered, thus forms with one
The diversion column for determining inflow angle degree has the effect of preferably smooth air-flow.To significantly reduce air-flow flow noise.
Further, in refrigerator of the invention, the inflow angle degree of diversion column meets special condition, can be obviously improved drop
It makes an uproar effect, while reducing air-flow flow resistance.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the principle schematic diagram of the cooling cycle system of refrigerator according to an embodiment of the invention；
Fig. 2 is the cross-sectional view of the First Transition pipeline section of refrigerator according to an embodiment of the invention；
Fig. 3 is the longitudinal sectional drawing of the First Transition pipeline section of refrigerator according to an embodiment of the invention；And
Fig. 4 is that the refrigerator of one embodiment of the invention and noise spectrum of the refrigerator in start process of the prior art compare
Figure.
Specific embodiment
The present embodiment provides firstly a kind of refrigerator, and Fig. 1 is the refrigeration cycle of refrigerator according to an embodiment of the invention
The principle schematic diagram of system.
Refrigerator generally may include cabinet, define the storage room of at least one open front in cabinet, between storing
The periphery of room is coated with cabinet shell, and thermal insulation material, such as foaming agent are filled between cabinet shell and storage room, to avoid
Cooling capacity is scattered and disappeared.Storage room is usually multiple, such as refrigerating chamber, freezing chamber, temperature-changing chamber.The quantity and function of specific storage room
It can be configured according to preparatory demand.
Refrigerator can be direct cooling refrigerator or air cooling type refrigerator, and compression-type refrigeration circulation can be used as cold source.
As shown in Figure 1, cooling cycle system generality may include compressor 10, condenser 20, capillary and evaporator etc..Refrigerant exists
Heat exchange is directly or indirectly occurred with storage room with low temperature in evaporator, absorbs the heat of storage room and gasification, is generated
Low-pressure steam sucked by compressor 10, be discharged after the compression of compressor 10 with high pressure, the high-pressure gaseous system that compressor 10 is discharged
Cryogen enters condenser 20, cooling by the cooling water of room temperature or air, condenses into highly pressurised liquid, highly pressurised liquid flows through capillary section
Stream, becomes the gas-fluid two-phase mixture of low-pressure low-temperature, into evaporator, liquid refrigerant therein evaporates system in evaporator
Cold, the low-pressure steam of generation is sucked by compressor 10 again, so in cycles, is constantly recycled, is realized the lasting system of refrigerator
It is cold.
Generally, the cooling cycle system of refrigerator can be single loop system or binary cycle system etc., make in single loop system
The trend of cryogen is compressor 10-- condenser 20-- capillary -- evaporator -- compressor 10, wherein capillary and evaporator
It is single.As shown in Figure 1, there are two independent capillary and evaporators for binary cycle system tool, it is respectively corresponding with refrigerating chamber
Refrigeration capillary 40, refrigeration evaporator 50 and freezing capillary 60 corresponding with freezing chamber and refrigerating evaporator 70.Refrigerator control
System control processed opens or closes the refrigerant towards refrigerating chamber or freezing chamber, to accurately control the temperature of refrigerating chamber and freezing chamber
Degree.
As shown in Figure 1, the cooling cycle system of refrigerator may also include regenerator 30, the temperature flowed out from condenser 20 is higher
Liquid refrigerant, and carry out heat exchange in regenerator 30 from the lower refrigerant vapour of evaporator temperature, make liquid system
The liquid refrigerant of cryogen supercooling, gaseous refrigerant overheat, the supercooling after the heat exchange of regenerator 30 flows into capillary, so that through
The liquid of refrigerant is more after capillary-compensated, and gaseous state is few, improves refrigeration effect；The gaseous state of overheat after the heat exchange of regenerator 30
Refrigerant is sucked by compressor 10, prevents liquid refrigerant from returning to compressor 10 and liquid hit phenomenon occurs.
For refrigerant at capillary jet port there are violent gas-liquid phase transition, refrigerant flow rate is in transonic speed region, can generate
Stronger noise, technical staff would generally attach glue outside the tube wall of first fluid delivery pipe between capillary and evaporator
Mud achievees the purpose that sound insulation, palliative although such scheme can reduce noise to a certain extent, can not be fundamentally
Noise source is eliminated, and can also bring the rising of cost.
Since the caliber of first fluid delivery pipe is smaller, for the smooth outflow for guaranteeing refrigerant fluid in pipeline, technology people
Member not will recognize that the structure for changing pipeline itself usually.And in the present invention, technical staff passes through a large amount of technological demonstration, creative
Ground improves the structure of the first fluid delivery pipe between capillary and evaporator itself, solves fluid flowing from the root
Noise, while also can avoid fluid and leading to the problem of resonance with pipeline, it is obviously improved the whole sound quality of refrigerator.
Fig. 2 is the cross-sectional view of the First Transition pipeline section 110 of refrigerator according to an embodiment of the invention, and Fig. 3 is
The longitudinal sectional drawing of the First Transition pipeline section 110 of refrigerator according to an embodiment of the invention.
Specifically, as shown in Figure 2,3, first fluid delivery pipe includes a First Transition pipeline section 110, First Transition pipeline section
One diversion column 120 is set in 110, and diversion column 120 extends along the extending direction of First Transition pipeline section 110.Diversion column 120 can to by
The high-velocity fluid that capillary jet port is injected into First Transition pipeline section 110 carries out dredging the turbulence effect for smoothly reducing incoming flow
It answers, smooth fluid flow state, to achieve the purpose that reduce air-flow flow noise.
First Transition pipeline section 110 can be located at first fluid delivery pipe close to the position of capillary outlet, relative to evaporator,
First Transition pipeline section 110 closer to capillary jet port at, at capillary jet port spray fluid it is defeated via first fluid
It after sending the First Transition pipeline section 110 of pipe, further flows in evaporator, First Transition pipeline section 110 particularly designs, and reduces
The flow noise of the fluid of capillary pipe inspection, improves the whole sound quality of refrigerator.
Referring again to Fig. 1, for the refrigerator of binary cycle system, capillary includes refrigeration capillary 40 and freezing capillary
60, evaporator includes refrigeration evaporator 50 and refrigerating evaporator 70, refrigerates first between capillary 40 and refrigeration evaporator 50
Fluid delivery pipeline includes a First Transition pipeline section 110 (B1 shown in Fig. 1), freeze capillary 60 and refrigerating evaporator 70 it
Between transfer pipeline include a First Transition pipeline section 110 (B2 shown in Fig. 1).
The length of diversion column 120 and the length of First Transition pipeline section 110 are roughly equal, and diversion column 120 can pass through welding
Mode is connected on the inner wall of First Transition pipeline section 110.The outer wall of diversion column 120 can be formed with along 120 circumferencial direction of diversion column
The multiple fin 120a being spaced apart, diversion column 120 are welded in the inner wall of First Transition pipeline section 110 by multiple fin 120a
On, multiple fin 120a can be evenly spaced on along the circumferencial direction of diversion column 120, and multiple fin 120a can be located at diversion column
The center of 120 extending directions.It is evenly spaced on as shown in Fig. 2, the outer wall of diversion column 120 is formed with along its circumferencial direction
Four fins 120a, four fin 120a respectively with the inner wall of First Transition pipeline section 110 weld, so that diversion column 120 be consolidated
Due to the inside of First Transition pipeline section 110, the stability of diversion column 120 is kept.
Particularly, in one of embodiment of the invention, diversion column 120 is tapered, that is to say that diversion column 120 is whole
Body structure is tapered pole, and the microcephaly of diversion column 120 is towards the inlet side direction of First Transition pipeline section 110, in other words, tapered
The taper microcephaly of diversion column 120 be located at the upstream of air current flow direction, the diversion column 120 of pyramidal structure can be to entering the first mistake
The air-flow crossed in pipeline section 110 is preferably dredged, smoothly, is significantly reduced the turbulence effect of incoming flow, is significantly improved gas
Flow flow noise.
In yet another embodiment of the present invention, as shown in figure 3, diversion column 120 is towards 110 inlet side of First Transition pipeline section
End it is tapered.It also is understood as, diversion column 120 is including shell of column always and connects with right cylinder section and is located at right cylinder section upstream
Taper shell of column thus forms the tapered diversion column 120 in end, and the end face direction of flow that diversion column 120 is tapered,
Preferably to be dredged, smoothly the high-speed flow entered in First Transition pipeline section 110.
The cone angle of tapered diversion column 1201Meet: 15 ° of < α160 ° of <, diversion column 120 is towards First Transition pipeline section
The cone angle of the end of 110 inlet sides2Meet: 15 ° of < α260 ° of <.Here cone angle1It is to be understood that tapered diversion column
The apex angle for the isosceles triangle that two endpoints of the diameter on the vertex and circular cone of the circular cone where 120 are constituted, cone angle here2
It is to be understood that two endpoints of the diameter on the vertex and circular cone of the circular cone where the tapered end of diversion column 120 were constituted
The apex angle of isosceles triangle.
The cone angle of tapered diversion column 1201, diversion column 120 towards 110 inlet side of First Transition pipeline section end cone
Angle α2Can be described as diversion column 120 meets stream cone angle, and as shown in Figure 3 meets stream cone angle2, the flow cone angle of meeting of diversion column 120 is got over
Small, the smooth excessive region of air-flow is longer, and corresponding air-flow flow resistance is also just smaller but certain in 120 diameter of diversion column
In the case where, diversion column 120 meets that flow cone angle is smaller, diversion column 120 to meet stream end thinner, can potentially bring diversion column 120
Strength of reliability reduction, under the percussion of high-speed flow, diversion column 120 is easy to cause to fracture.And diversion column 120 is met
Flow cone angle is bigger, and the flow resistance caused by air-flow is relatively bigger, will lead to the generation of regeneration air stream noise.For this purpose, this implementation
Example limits at the flow cone angle of meeting of diversion column 120 within the above range, can avoid the appearance of the above problem, is utmostly reducing gas
While flowing flow noise, keeps air-flow flowing smooth, avoid gas-flow resistance excessive and influence refrigeration for refrigerator performance.
The central axes of diversion column 120 are overlapped with the central axes of First Transition pipeline section 110, and in other words, diversion column 120 is in
The longitudinal central region of First Transition pipeline section 110, the diameter D1 of diversion column 120 and the internal diameter D of First Transition pipeline section 110 meet:
D1/D < 1/2.
Since the region at capillary jet port is turbulence effect marking area, between capillary jet port and evaporator
Air-flow in first fluid delivery pipe is in high-speed jet state, wherein the turbulence effect of first fluid delivery pipe central area
And flow velocity is far longer than the turbulence effect and flow velocity in pipeline inner wall face region, therefore, the setting of diversion column 120 is conveyed in first fluid
The central area of the First Transition pipeline section 110 of pipe can greatly weaken turbulence effect, improve noise.According to First Transition pipeline section
The diversion column 120 of 110 size selection suitable dimension, it is ensured that the valid circulation area of First Transition pipeline section 110 reduces pressure
Damage, keeps the refrigeration performance of refrigerator, meanwhile, reach better noise reduction effect.
Fig. 4 is that the refrigerator of one embodiment of the invention and noise spectrum of the refrigerator in start process of the prior art compare
Figure.
As shown in figure 4, unique difference of the refrigerator of the refrigerator and the present embodiment of comparative example is that the refrigerator of comparative example does not have
There is the First Transition pipeline section 110 of the present embodiment.As shown in Figure 4, the refrigerator pair with First Transition pipeline section 110 of the present embodiment
The pneumatic noise of 1250Hz to 1600HZ is significantly improved, and the frequency range is that human ear experiences most sensitive intermediate-frequency band, as a result,
By improving the frequency range level of noise, sense of hearing quality can be significantly improved, so that the noise of the not noticeable refrigerator of user, promotes user
Usage experience.
It is of the invention in one embodiment, refrigerator can be air cooling type refrigerator, refrigerator further includes supply air duct and setting
Blower in supply air duct, blower are configured to promote to flow into storage room by supply air duct through evaporator air after cooling
In, to change the temperature of storage room.
In air cooling type refrigerator, the main distributional pattern of the air-flow in supply air duct is turbulent flow form, for existing light
The supply air duct of sliding inner wall, near wall are easy to produce turbulent flow regenerated noise, influence refrigerator sound quality, and can also reduce air-flow stream
Resistance, influences air quantity.To improve fluid flow noise in air duct.In the present invention, designer is creatively to the knot of supply air duct
Structure improves, and fundamentally to improve supply air duct interior air-flow hydrodynamic noise, improves refrigerator sound quality.
Specifically, the inner wall of supply air duct forms multiple raised lines of oriented supply air duct inner space protrusion, and raised line edge is sent
Wind air duct extending direction extend, multiple raised lines along supply air duct inner wall circumferential direction parallelly distribute on, with utilize adjacent two
Raised line forms groove shaped flow conduits, and multiple groove shaped flow conduits disperse air-flow, avoids generating turbulent flow in supply air duct, reduces air-flow flowing and makes an uproar
Sound, while helping to reduce flow resistance, improve flow.
Multiple raised lines can be evenly spaced on along the circumferential direction of supply air duct inner wall or multiple raised lines can be along air-supply wind
The circumferential direction of road inner wall is successively continuously distributed.
In the present embodiment, the cross section of raised line is in dentation, the circumferential direction of the raised lines of multiple dentations along supply air duct inner wall
It is successively continuously distributed.Air-supply wind inner wall is designed to dentalation, destroys in supply air duct fluid in the turbulent flow shape of near wall
The big maelstrom of noise energy is broken into the small small vortex of energy, to reduce air-flow flow noise significantly by state.In addition,
Two adjacent raised lines form the runner of channel form, and the runner guidance air-flow more boundling of multiple channel forms flows through air-supply wind
Road, smooth turbulence state, reduces air-flow flow resistance, avoids air-flow in the unordered flowing bring flow loss in other directions.
Tooth angle α in the raised line of dentation is acute angle, to be promoted to the crushing effect being vortexed in supply air duct.Particularly,
Tooth angle α meets: 45 °≤α≤90 °.Tooth angle α is smaller, and raised line is more sharp, better to the crushing effect of maelstrom, but due to
The collision of high-speed flow, the raised line being excessively sharp, abrasion is also very fast, and wedge angle is rounded angle after being worn, and influences noise reduction effect, and
Tooth angle is smaller, and the processing demoulding difficulty of supply air duct is also higher.Comprehensive Noise Reduction effect, processing technology and service life abrasion, this reality
The tooth angle α for applying raised line in example meets: 45 °≤α≤90 °, the supply air duct for meeting the design not only can significantly reduce air-flow stream
Dynamic noise, and it is easy to process, last a long time, preferable noise reduction effect can be kept for a long time.
Optionally, tooth angle α can be 65 °, and the supply air duct of this type can reach optimal noise reduction effect, and reduce
Difficulty of processing.
Height H in the raised line of dentation can meet:Wherein, L is the effective length of supply air duct, Re=ρ
Vd/ μ, wherein Re is Reynolds constant, and ρ is the current density in supply air duct, and v is the air-flow velocity in supply air duct, and d is air-supply
The equivalent diameter in air duct, μ are the coefficient of kinetic viscosity of air-flow.Generally, the Reynolds of the air-flow flowed in the supply air duct of refrigerator
Constant Re desirable 2500.
Generally, supply air duct is rectangle, and the equivalent diameter of supply air duct is the equivalent round wind of the supply air duct of rectangle
Road diameter, the effective length of supply air duct are the rectilinear path of supply air duct interior air-flow.
The flow velocity of the flow regime of supply air duct interior air-flow and supply air duct interior air-flow, supply air duct equivalent diameter and
The effective length of supply air duct is related, and the height that above-mentioned formula calculates is Boundary Layer Height of the air-flow in supply air duct, raised line
Height H be designed as flow boundary layer air height, can reach optimal noise reduction effect, while maximizing and reduce air-flow flow resistance and reduction
Flow loss.
The high-pressure gaseous refrigerant of compressor discharge flows in condenser through second fluid delivery pipe, due to high-pressure fluid
The problem of quickly, the noise energy of generation is very high for flow velocity, also brings along pipeline vibration aggravation, influences refrigerator entirety sound quality.
In the present embodiment, second fluid delivery pipe includes one second transitional pipe segment, and setting one is along the in the second transitional pipe segment
The inner wall clearance space of the inner tube that two transitional pipe segment extending directions extend, outer wall of inner tube and the second transitional pipe segment is arranged, the second mistake
The inlet side for crossing pipeline section is connected to the outlet of compressor, and the outlet of the second transitional pipe segment is connected to the inlet side of condenser.By compressor
The fluid of outlet (exhaust outlet) discharge enters in the second transitional pipe segment, and a part of fluid is between the second transitional pipe segment and inner tube
Flowing in clearance space, a part flow in inner tube.
Since air-flow flowing shows as flow velocity at pipeline center and is significantly larger than flow velocity at pipeline wall surface, gas at compressor air-discharging
The noise energy of stream flowing is largely focused on the central area of pipeline, inner tube is provided in the second transitional pipe segment, so that inner tube
The low speed flow flowed between high speed fluid and the second transitional pipe segment and inner tube is sufficiently mixed at the outlet end of inner tube,
The turbulence state of the second transitional pipe segment central area is destroyed, the jet velocity of inner tube high speed fluid is reduced, to significantly reduce
Fluid flow noise.
Second transitional pipe segment can be located at second fluid delivery pipe and close on the position of compressor outlet, relative to condenser, the
Two transitional pipe segments closer to compressor exhaust pipe at, it can be understood as, the outlet of compressor exhaust pipe and the second transitional pipe segment
Connection.After the air-flow of compressor exhaust pipe discharge is via the second transitional pipe segment of second fluid delivery pipe, and further flow
To condenser, caused vibration noise is flowed so as to improve air-flow at compressor exhaust pipe, it is whole further to promote refrigerator
Sound quality.
The central axes of inner tube can be overlapped with the central axes of the second transitional pipe segment, and in other words, inner tube is in the second coupling tube
The longitudinal central region of section, the low speed flow in the region between high-speed flow and inner tube and the second transitional pipe segment in inner tube exist
It is uniformly sufficiently mixed at inner tube outlet, nozzle-fluid velocity at inner tube outlet is destroyed, to promote noise reduction effect.
The length of second transitional pipe segment be 8cm to 15cm, the same length of the length of inner tube and the second transitional pipe segment,
By designing the second transitional pipe segment of special length, reaching sufficiently reduces fluid flow noise, and guarantees that fluid flowing is smooth, protects
Hold the refrigeration performance of refrigerator.
The outer wall of inner tube can be formed with the multiple fins multiple circumferentially spaced along inner tube, and inner tube passes through multiple fin
It is welded on the inner wall of the second transitional pipe segment, multiple fins can be evenly spaced on along the circumferencial direction of inner tube, and multiple fins can
Positioned at the center of inner tube extending direction.The outer wall of inner tube can be formed with four wings being evenly spaced on along its circumferencial direction
Piece, four fins are welded with the inner wall of the second transitional pipe segment respectively, so that inner tube to be fixed on to the inside of the second transitional pipe segment.
Particularly, in one of embodiment of the invention, inner tube can be conical pipe, and the small-caliber end of conical pipe
Positioned at the upstream of fluid flow direction, fluid is entered in inner tube by the small-caliber end of conical pipe.Cone in second transitional pipe segment
Shape pipe carries out smooth water conservancy diversion to the air-flow entered in the second transitional pipe segment, and control into inner tube and enter the second transitional pipe segment with
Air-flow ratio between inner tube keeps air-flow flowing smooth while reducing air-flow hydrodynamic noise.
The cone angle alpha of conical pipe meets, and 20 °≤α≤60 °, cone angle alpha here is it is to be understood where conical pipe
The apex angle for the isosceles triangle that two endpoints of the diameter on the vertex and circular cone of circular cone are constituted.If conical pipe is in horizontality,
The edge of the small-caliber end of conical pipe and horizontal angle are α/2, and 10 °≤α/2≤30 °.By the circle for limiting conical pipe
The size of cone angle, rationally control enter inner tube and enter the air-flow ratio of the annular region between the second transitional pipe segment and inner tube,
Rationally control enters the central core region of the second transitional pipe segment, that is to say effective inlet flow area in inner tube, it is ensured that in inner tube
Outlet end have enough low speed flows and height air-flow mixing, promoted noise reduction effect.Meanwhile avoiding the centre of transitional pipe segment
Nucleus inlet flow area it is excessive and cause region between inner tube and transitional pipe segment air-flow flow resistance increase the problem of.Thus
It realizes while promoting noise reduction effect, guarantees that air-flow flowing is smooth, realize the normal refrigeration of refrigerator.
In another embodiment of the present invention, inner tube may include taper pipeline section and connect with the large diameter end of taper pipeline section
Straight pipe, and conical pipe section is located at the upstream of straight pipe, and in other words, fluid is entered by the small-caliber end of taper pipeline section
In inner tube.Taper pipeline section carries out the air-flow of the air-flow entered in inner tube and the region entered between the second transitional pipe segment and inner tube
Smooth water conservancy diversion, and control into inner tube and enter the air-flow ratio between the second transitional pipe segment and inner tube, reducing air-flow flowing
While noise, keep air-flow flowing smooth.
Similarly, the cone angle alpha of taper pipeline section meets, and 20 °≤α≤60 °, cone angle alpha here is it is to be understood that taper
The apex angle for the isosceles triangle that two endpoints of the diameter on the vertex and circular cone of the circular cone where pipeline section are constituted, taper pipeline section are in
Horizontality, the edge of the small-caliber end of conical pipe and horizontal angle are α/2, and 10 °≤α/2≤30 °.It is bored by limiting
The size of the cone angle alpha of shape pipeline section, rationally control enter inner tube and enter the annular region between the second transitional pipe segment and inner tube
Air-flow ratio, realize while promoting noise reduction effect, keep air-flow flowing it is smooth, keep the refrigeration performance of refrigerator.
The refrigerator of the present embodiment, evaporator and intercapillary first fluid delivery pipe have a First Transition pipeline section
110, a diversion column 120,120 pairs of the diversion column high speeds entered in First Transition pipeline sections 110 are provided in First Transition pipeline section 110
Fluid dredge smoothly, reduces the turbulence effect of incoming flow, smooth fluid flow state, so that reaching reduces air-flow flow noise
Purpose.
Further, in the refrigerator of the present embodiment, diversion column 120 is tapered, and the microcephaly court of tapered diversion column 120
It is tapered to the inlet side direction of First Transition pipeline section 110 or the end of diversion column 120 towards 110 inlet side of First Transition pipeline section,
The diversion column 120 with certain inflow angle degree is thus formed, the effect of preferably smooth air-flow can be brought.
Further, in the refrigerator of the present embodiment, the inflow angle degree of diversion column 120 meets special condition, can be significant
Noise reduction effect is promoted, while reducing air-flow flow resistance.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of refrigerator, including evaporator, the capillary being connect with the evaporator and the connection evaporator and the hair
The first fluid delivery pipe of tubule, wherein
The first fluid delivery pipe includes a First Transition pipeline section, and a diversion column is arranged in the First Transition pipeline section；
The diversion column extends along the extending direction of the First Transition pipeline section, for in the entrance First Transition pipeline section
Fluid dredge smooth, achieve the purpose that reduce pneumatic noise.
2. refrigerator according to claim 1, wherein
The central axes of the diversion column are overlapped with the central axes of the First Transition pipeline section.
3. refrigerator according to claim 1, wherein
The diversion column is tapered, and the microcephaly of the tapered diversion column is towards the inlet side side of the First Transition pipeline section
To.
4. refrigerator according to claim 1, wherein
The end of the diversion column towards First Transition pipeline section inlet side is tapered.
5. refrigerator according to claim 3, wherein
The cone angle of the tapered diversion column1Meet: 15 ° of < α160 ° of <.
6. refrigerator according to claim 4, wherein
The diversion column towards First Transition pipeline section inlet side end cone angle2Meet: 15 ° of < α260 ° of <.
7. refrigerator according to claim 1, wherein
The internal diameter D of the diameter D1 of the diversion column and the First Transition pipeline section meets: D1/D < 1/2.
8. refrigerator according to claim 1, wherein
The length of the diversion column and the length of the First Transition pipeline section are roughly equal.
9. refrigerator according to claim 1, further includes:
Refrigerating chamber；
The capillary includes refrigeration capillary, and the evaporator includes for providing the refrigeration evaporation of cooling capacity to the refrigerating chamber
Device.
10. refrigerator according to claim 1, further includes:
Freezing chamber；
The capillary includes freezing capillary, and the evaporator includes for providing the freezing and evaporating of cooling capacity to the freezing chamber
Device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450551.8A CN109974364A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
| PCT/CN2018/123920 WO2019129062A1 (en) | 2017-12-27 | 2018-12-26 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450551.8A CN109974364A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109974364A true CN109974364A (en) | 2019-07-05 |
Family
ID=67063181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711450551.8A Pending CN109974364A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109974364A (en) |
| WO (1) | WO2019129062A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198967B (en) * | 2020-09-18 | 2023-11-10 | 东芝家用电器制造（南海）有限公司 | Refrigerator compartment and refrigerator |
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| CN2929629Y (en) * | 2006-07-06 | 2007-08-01 | 杨景暄 | Silencer with Lafal tube |
| CN101016853A (en) * | 2006-02-07 | 2007-08-15 | Lg电子株式会社 | Silencer |
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| KR20020035687A (en) * | 2000-11-07 | 2002-05-15 | 구자홍 | An expansion valve of heat exchange cycle |
| CN102072599B (en) * | 2011-01-24 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigeration equipment and transition pipe for same |
| CN102147175B (en) * | 2011-04-19 | 2012-11-28 | 江苏白雪电器股份有限公司 | Connecting structure of evaporator and capillary tube |
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- 2017-12-27 CN CN201711450551.8A patent/CN109974364A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016853A (en) * | 2006-02-07 | 2007-08-15 | Lg电子株式会社 | Silencer |
| CN2929629Y (en) * | 2006-07-06 | 2007-08-01 | 杨景暄 | Silencer with Lafal tube |
| CN202133198U (en) * | 2011-07-06 | 2012-02-01 | 珠海格力电器股份有限公司 | Air conditioner and throttling silencer thereof |
| CN202833034U (en) * | 2012-10-19 | 2013-03-27 | 安徽众汇制冷有限公司 | Silencer with double sound eliminating functions |
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| CN207778916U (en) * | 2017-12-27 | 2018-08-28 | 青岛海尔股份有限公司 | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019129062A1 (en) | 2019-07-04 |
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Application publication date: 20190705 |