CN109974379A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- CN109974379A CN109974379A CN201711448969.5A CN201711448969A CN109974379A CN 109974379 A CN109974379 A CN 109974379A CN 201711448969 A CN201711448969 A CN 201711448969A CN 109974379 A CN109974379 A CN 109974379A
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- inner tube
- pipe segment
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- fluid
- transitional pipe
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- 239000012530 fluid Substances 0.000 claims abstract description 76
- 230000008859 change Effects 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 22
- 238000005192 partition Methods 0.000 description 22
- 239000003507 refrigerant Substances 0.000 description 17
- 238000005057 refrigeration Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- 238000007710 freezing Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001737 promoting effect Effects 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
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 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
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- -1 into evaporator Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000012546 transfer 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention provides a kind of refrigerators, including compressor, the first fluid delivery pipe of the condenser and connect compressor and condenser that are connect with compressor, wherein, first fluid delivery pipe includes a transitional pipe segment, the inner tube that setting one extends along transitional pipe segment extending direction in transitional pipe segment, outer wall of inner tube and the inner wall clearance space of transitional pipe segment are arranged, and the inlet side of transitional pipe segment is connected to the outlet of compressor, the outlet of transitional pipe segment is connected to the inlet side of condenser, so that region of a part between transitional pipe segment and inner tube into the fluid in transitional pipe segment is flowed, a part flows in inner tube, to change the flowing velocity of fluid, to reach reduction hydrodynamic noise, improve the purpose of refrigerator entirety sound quality.
Description
Technical field
The present invention relates to family's electro-technical fields, more particularly to refrigerator.
Background technique
Refrigerator pipeline fluid hydrodynamic noise is the main noise source of refrigerator.High-pressure fluid flow velocity quickly, the noise energy of generation
Amount is very high, can also pipeline vibration be brought to aggravate, influence refrigerator entirety sound quality.
The existing scheme for improving tube runs noise, mainly by wrapping up clay outside pipeline, to reach sound insulation
Effect, but the program is palliative, and soundproof effect is not significant, and leads to 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.
It is whole a further object of the present invention is to reduce fluid hydrodynamic noise and improvement refrigerator in first fluid delivery pipe
Body sound quality.
The present invention provides a kind of refrigerator, including compressor, the condenser being connect with compressor and connect compressor with it is cold
The first fluid delivery pipe of condenser, wherein
First fluid delivery pipe includes a transitional pipe segment, and setting one extends along transitional pipe segment extending direction in transitional pipe segment
Inner tube；
Outer wall of inner tube and the inner wall clearance space of transitional pipe segment are arranged, and the outlet of the inlet side of transitional pipe segment and compressor connects
Logical, the outlet of transitional pipe segment is connected to the inlet side of condenser so that into the fluid in transitional pipe segment a part in transition
Region flowing between pipeline section and inner tube, a part flows in inner tube, to change the flowing velocity of fluid, is reduced with reaching
The purpose of fluid hydrodynamic noise.
Optionally, transitional pipe segment is located at the position that first fluid delivery pipe closes on compressor outlet.
Optionally, the central axes of inner tube are overlapped with the central axes of transitional pipe segment.
Optionally, inner tube is conical pipe, and the small-caliber end of conical pipe is located at the upstream of fluid flow direction, so that stream
Body is entered in inner tube by the small-caliber end of conical pipe.
Optionally, the cone angle alpha of conical pipe meets, and 20 °≤α≤60 °.
Optionally, inner tube includes taper pipeline section and the straight pipe that connects with the large diameter end of taper pipeline section；
And conical pipe section is located at the upstream of straight pipe, so that fluid enters inner tube by the small-caliber end of taper pipeline section
In.
Optionally, the cone angle alpha of taper pipeline section meets, and 20 °≤α≤60 °.
Optionally, the length of transitional pipe segment is 8cm to 15cm.
Optionally, the outer wall of inner tube is formed with multiple circumferentially spaced multiple fins along inner tube, and inner tube passes through more
A fin is welded on the inner wall of transitional pipe segment.
Optionally, multiple fins are evenly spaced on along the circumferencial direction of inner tube.
Refrigerator of the invention, first fluid delivery pipe between compressor and condenser have a transitional pipe segment, by
Inner tube with transitional pipe segment inner wall clearance space, the refrigerant stream of the high temperature and pressure at compressor exhaust pipe are set in transitional pipe segment
Region flowing of a part of body between transitional pipe segment and inner tube, another part flows in inner tube, thus by fluid partitioning
It flows for two regions, and is sufficiently mixed in the outlet end of inner tube, thus destroy the turbulence of the central area of transitional pipe segment
State reduces flowing jet velocity, to significantly reduce hydrodynamic noise, achievees the effect that promote refrigerator entirety sound quality.
Further, in refrigerator of the invention, transitional pipe segment is located at the position that first fluid delivery pipe closes on compressor outlet
Set, relative to condenser, transitional pipe segment closer to compressor exhaust pipe at, so as to improve fluid stream at compressor exhaust pipe
Vibration noise caused by dynamic further promotes refrigerator entirety sound quality.
Further, in refrigerator of the invention, for inner tube for conical pipe or including taper pipeline section, fluid passes through conical pipe
Small-caliber end is entered in inner tube by the small-caliber end of taper pipeline section, the inner tube of such shape to the air-flow entered in it and into
The air-flow for entering region between transitional pipe segment and inner tube plays the role of smooth water conservancy diversion, and can control into inner tube and enter coupling tube
The air-flow ratio in region between section and inner tube, promotes noise reduction effect.
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 transitional pipe segment of refrigerator according to an embodiment of the invention；
Fig. 3 is the longitudinal sectional drawing of the transitional pipe segment of refrigerator according to an embodiment of the invention；
Fig. 4 is the longitudinal sectional drawing of the inner tube of refrigerator according to an embodiment of the invention；And
Fig. 5 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.
Cooling cycle system generality may include compressor 10, condenser 20, capillary and evaporator etc..Refrigerant in evaporator with
Directly or indirectly with storage room heat exchange occurs for low temperature, absorbs the heat of storage room and gasification, the low-pressure steam of generation
It is sucked, is discharged after the compression of compressor 10 with high pressure, the high-pressure gaseous refrigerant that compressor 10 is discharged enters cold by compressor 10
Condenser 20, it is cooling by the cooling water of room temperature or air, highly pressurised liquid is condensed into, highly pressurised liquid flows through capillary-compensated, becomes low
Force down temperature gas-fluid two-phase mixture, into evaporator, liquid refrigerant therein sweat cooling in evaporator, generation it is low
Pressure steam is sucked by compressor 10 again, so in cycles, is constantly recycled, is realized the lasting refrigeration of refrigerator.
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, capillary and evaporator therein
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 can open or close the refrigerant towards refrigerating chamber or freezing chamber, to accurately control refrigerating chamber and freezing chamber
Temperature.
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.
The high-pressure gaseous refrigerant that compressor 10 is discharged flows in condenser 20 through first fluid delivery pipe 100, due to
The problem of quickly, the noise energy of generation is very high for high-pressure fluid flow velocity, can also pipeline vibration be brought to aggravate, influences refrigerator entirety sound
Quality.Technical staff usually attaches clay outside tube wall, achievees the purpose that sound insulation, although such scheme can reduce to a certain extent
Noise, but it is palliative, noise source (fluid flow noise) can not be eliminated, noise can not be inherently eliminated, and can also band
Carry out the rising of cost.
Since the caliber of first fluid delivery pipe 100 is smaller, for the smooth outflow for guaranteeing refrigerant fluid in pipeline, technology
Personnel 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, creates
Property the structure of the first fluid delivery pipe 100 between compressor 10 and condenser 20 itself is improved, is solved from the root
Certainly fluid flow noise also can avoid fluid and pipeline leads to the problem of resonance, is obviously improved the whole sound quality of refrigerator.
Fig. 2 is the cross-sectional view of the transitional pipe segment 111 of refrigerator according to an embodiment of the invention, shown in Fig. 2
Structure is the cross-sectional view of pipeline section at A in Fig. 1.
Specifically, first fluid delivery pipe 100 includes a transitional pipe segment 111 (A as shown in Figure 1), in transitional pipe segment 111
One inner tube 112 extended along 111 extending direction of transitional pipe segment, the inner wall interval sky of 112 outer wall of inner tube and transitional pipe segment 111 are set
Between be arranged, the inlet side of transitional pipe segment 111 is connected to the outlet of compressor 10, the outlet of transitional pipe segment 111 and condenser 20 into
End connection.Entered in transitional pipe segment 111 by the fluid that 10 outlet of compressor (exhaust outlet) is discharged, a part of fluid is in transitional pipe segment
Flowing in clearance space between 111 and inner tube 112, a part flow in inner tube 112.
Since air-flow flowing shows as flow velocity at pipeline center and is significantly larger than flow velocity at pipeline wall surface at 10 exhaust of compressor,
The noise energy of air-flow flowing is largely focused on the central area of pipeline, inner tube 112 is arranged in transitional pipe segment 111, so that interior
The low speed flow flowed between 112 high speed fluid of pipe and transitional pipe segment 111 and inner tube 112 at the outlet end of inner tube 112 into
Row is sufficiently mixed, and destroys the turbulence state of 111 central area of transitional pipe segment, reduces the jet velocity of 112 high speed fluid of inner tube,
To significantly reduce fluid flow noise.
Transitional pipe segment 111 can be located at the position that first fluid delivery pipe 100 closes on 10 outlet of compressor, relative to condenser
20, transitional pipe segment 111 closer to 10 exhaust pipe of compressor at, it can be understood as, the outlet and transition of 10 exhaust pipe of compressor
Pipeline section 111 connects.After the air-flow of 10 exhaust pipe of compressor discharge is via the transitional pipe segment 111 of first fluid delivery pipe 100, and
It further flows at condenser 20, caused vibration noise is flowed so as to improve air-flow at 10 exhaust pipe of compressor, into one
Step promotes refrigerator entirety sound quality.
The central axes of inner tube 112 can be overlapped with the central axes of transitional pipe segment 111, and in other words, inner tube 112 is in coupling tube
The longitudinal central region of section 111, it is low in the region between high-speed flow and inner tube 112 and transitional pipe segment 111 in inner tube 112
Fast air-flow is uniformly sufficiently mixed in 112 exit of inner tube, 112 exit nozzle-fluid velocity of inner tube is destroyed, to mention
Rise noise reduction effect.
The length of transitional pipe segment 111 is 8cm to 15cm, the length substantially phase of the length and transitional pipe segment 111 of inner tube 112
Together, by designing the transitional pipe segment 111 of special length, reaching sufficiently reduces fluid flow noise, and guarantees that fluid flowing is smooth,
Keep the refrigeration performance of refrigerator.
The outer wall of inner tube 112 can be formed with the multiple fin 112as multiple circumferentially spaced along inner tube 112, inner tube 112
It is welded on the inner wall of transitional pipe segment 111 by multiple fin 112a, multiple fin 112a can be along the circumferencial direction of inner tube 112
It is evenly spaced on, multiple fin 112a can be located at the center of 112 extending direction of inner tube.As shown in Fig. 2, inner tube 112
Outer wall be formed with along its circumferencial direction four fins 112a, four fin 112a being evenly spaced on respectively with transitional pipe segment
111 inner wall welding, so that inner tube 112 to be fixed on to the inside of transitional pipe segment 111.
Fig. 3 is the longitudinal sectional drawing of the transitional pipe segment 111 of refrigerator according to an embodiment of the invention, and Fig. 4 is according to this
The longitudinal sectional drawing of the inner tube 112 of the refrigerator of invention one embodiment.
Particularly, in one of embodiment of the invention, inner tube 112 can be conical pipe, and the osculum of conical pipe
Diameter end is located at the upstream of fluid flow direction, and fluid is entered in inner tube 112 by the small-caliber end of conical pipe.Transitional pipe segment 111
In conical pipe smooth water conservancy diversion is carried out to the air-flow entered in transitional pipe segment 111, and control into inner tube 112 and enter coupling tube
Air-flow ratio between section 111 and inner tube 112 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 112 and enter the air-flow of the annular region between transitional pipe segment 111 and inner tube 112
Ratio, rationally control enters the central core region of transitional pipe segment 111, that is to say effective inlet flow area in inner tube 112, it is ensured that
There are enough low speed flows and the mixing of height air-flow in the outlet end of inner tube 112, promotes noise reduction effect.Meanwhile avoiding transition
The central core region inlet flow area of pipeline section 111 is excessive and the air-flow flow resistance in region between inner tube and transitional pipe segment is caused to increase
Big problem.It is thus achieved that guaranteeing that air-flow flowing is smooth while promoting noise reduction effect, realizing the normal refrigeration of refrigerator.
As shown in figure 4, in another embodiment of the present invention, inner tube 112 may include taper pipeline section and with taper pipeline section
The straight pipe that connects of large diameter end, and conical pipe section is located at the upstream of straight pipe, and in other words, fluid passes through taper pipeline section
Small-caliber end enter in inner tube 112.Taper pipeline section is to the air-flow entered in inner tube 112 and enters transitional pipe segment 111 and inner tube
The air-flow in the region between 112 carries out smooth water conservancy diversion, and control into inner tube 112 and enter transitional pipe segment 111 and inner tube 112 it
Between air-flow ratio, while reducing air-flow hydrodynamic noise, keep air-flow flowing it is 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, as shown in figure 3, cone
Shape pipeline section is in horizontality, and the edge of the small-caliber end of conical pipe and horizontal angle are α/2, and 10 °≤α/2≤30 °.
By limiting the size of the cone angle alpha of taper pipeline section, rationally control enters inner tube 112 and enters transitional pipe segment 111 and inner tube 112
Between annular region air-flow ratio, realize while promoting noise reduction effect, keep air-flow flowing it is smooth, keep refrigerator
Refrigeration performance.
Fig. 5 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 5, 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 transitional pipe segment 111 of the present embodiment.As seen from Figure 5, the refrigerator with transitional pipe segment 111 of the present embodiment is to 630Hz
Pneumatic noise to 1250HZ has some improvement, and is especially significantly improved to 1000Hz pneumatic noise tool, and the frequency range is
Human ear experiences most sensitive intermediate-frequency band, as a result, by the improvement frequency range level of noise, can significantly improve sense of hearing quality, so that
The noise of the not noticeable refrigerator of user, promotes the usage experience of user.
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 adjust 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 smooth
The supply air duct of inner wall is easy to produce turbulent flow regenerated noise near wall, influences refrigerator sound quality, and can also reduce air-flow stream
Resistance, influences air quantity.For improve air duct in fluid flow noise, the present invention in, 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 can form multiple raised lines of oriented supply air duct inner space protrusion, raised line edge
Supply air duct extending direction extend, multiple raised lines along supply air duct inner wall circumferential direction parallelly distribute on, with utilize adjacent two
A raised line forms groove shaped flow conduits, and multiple groove shaped flow conduits disperse air-flow, avoids generating turbulent flow, reduces air-flow flow noise, simultaneously
Help to reduce flow resistance, improves flow.
Multiple raised lines are evenly spaced on along the circumferential direction of supply air duct inner wall or multiple raised lines are along supply air duct
The circumferential direction of 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, so that the inner wall of supply air duct shows the runner of multiple channel forms, it is multiple
The supply air duct that flows through of the runner guidance air-flow more boundling of channel form enters storage room, and 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
With the collision of air-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
Wedge 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 implementation
The tooth angle α of raised line meets in example: 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, will be convex
The height H of item is designed as flow boundary layer air height, can reach optimal noise reduction effect, while maximizing reduction air-flow flow resistance and subtracting
Few flow loss.
For refrigerant at capillary jet port there are violent gas-liquid phase transition, refrigerant flow rate is in transonic speed region, can also produce
Raw stronger noise.
In the present embodiment, connects in the second fluid delivery pipe of evaporator and capillary and be provided with partition, partition is along second
The radial direction of fluid delivery tube is set in second fluid delivery pipe, for being divided into second fluid delivery pipe along fluid stream
The first pipeline section and the second pipeline section of dynamic direction directional spreding.It is formed on partition multiple in a thickness direction through the logical of partition
The air-flow in hole, the injection of capillary jet port enters in the first pipeline section, and enters the second pipeline section by the through-hole on partition, and air-flow is logical
After crossing the partition with through-hole, therefrom low frequency is moved to the superelevation frequency domain that human ear can't hear to sound source power, from there through shift frequency
Effect improves human ear sense of hearing, improves the 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 second between capillary 40 and refrigeration evaporator 50
It is provided with partition in fluid delivery tube, freezes and is arranged in the second fluid transfer pipeline between capillary 60 and refrigerating evaporator 70
There is partition.
Partition can be located at the position that capillary jet port is closed in second fluid delivery pipe, and relative to evaporator, partition is more
Add at capillary jet port, the fluid sprayed at capillary jet port enters the first pipeline section, is entered by the through-hole of partition
Second pipeline section is changed the frequency noise of fluid flowing, is improved the sound quality of refrigerator due to the design of partition.
On the solderable inner wall for being connected to second fluid delivery pipe of partition, the material of partition uses and fluid delivery tube weld-compatible
Property good material, and pass through corrosion-resistance treatment, avoid partition from getting rusty and block the through-hole on partition.Partition is preferably shaped to
Circle facilitates partition and the welding of second fluid delivery pipe to match.
All through-holes can be uniformly distributed on partition.In view of the noise energy of air-flow flowing is largely focused on center
Domain is greater than point for the multiple through-holes being located at except partition central area positioned at the distribution density of multiple through-holes of partition central area
Cloth density, to improve to the more apparent pneumatic noise of turbulence state in transitional pipe segment central area, significantly to drop
Low-flow flow noise.
The internal diameter of through-hole is less than or equal to 1 millimeter, and for air-flow by through-hole, the shift frequency effect of sound source power is more significant, from
And it is obviously improved promotion noise reduction effect.
The gross area S1 of all through-holes and the cross-sectional area S of second fluid delivery pipe meet: S1 >=3S/4.By limiting institute
There is the ratio of second fluid delivery pipe cross section shared by through-hole, avoid partition bring restriction loss, keeps the smooth stream of fluid
It is dynamic, to guarantee to keep the refrigeration performance of refrigerator while promoting noise reduction effect.
The refrigerator of the present embodiment, the first fluid delivery pipe 100 between compressor 10 and condenser 20 have a coupling tube
Section 111, the inner tube 112 of setting and 111 inner wall clearance space of transitional pipe segment in transitional pipe segment 111, the high temperature that compressor 10 exports
Region flowing of a part of the refrigerant fluid of high pressure between transitional pipe segment 111 and inner tube 112, another part is in inner tube
It is flowed in 112, to be two region flowings by fluid partitioning, and is sufficiently mixed in the outlet end of inner tube 112, is thus broken
The turbulence state of the central area of bad transitional pipe segment 111 reduces flowing jet velocity and reaches to significantly reduce hydrodynamic noise
Promote the effect of refrigerator entirety sound quality.
Further, the refrigerator of the present embodiment, transitional pipe segment 111 are located at first fluid delivery pipe 100 and close on compressor 10
The position of outlet, relative to condenser 20, transitional pipe segment 111 closer to 10 exhaust pipe of compressor at, so as to improve compression
Vibration noise caused by air-flow flows at 10 exhaust pipe of machine further promotes refrigerator entirety sound quality.
Further, the refrigerator of the present embodiment, for inner tube 112 for conical pipe or including taper pipeline section, fluid passes through taper
The small-caliber end of pipe or the small-caliber end of taper pipeline section enter in inner tube 112, and 112 pairs of inner tube of such shape enter inner tube 112
Air-flow and the air-flow that enters between transitional pipe segment 111 and inner tube 112 play the role of smooth water conservancy diversion, and controllable enter inner tube
The air-flow ratio in space between 112 and entrance transitional pipe segment 111 and inner tube 112, promotes noise reduction effect.
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 compressor, the condenser being connect with the compressor and the connection compressor and the condensation
The first fluid delivery pipe of device, wherein
The first fluid delivery pipe includes a transitional pipe segment, and setting one is along the transitional pipe segment extension side in the transitional pipe segment
To the inner tube of extension；
Said inner tube outer wall and the inner wall clearance space of the transitional pipe segment are arranged, and the inlet side of the transitional pipe segment and the pressure
The outlet of contracting machine is connected to, and the outlet of the transitional pipe segment is connected to the inlet side of the condenser, so that into the coupling tube
Region flowing of a part of fluid in section between the transitional pipe segment and said inner tube, a part flow in said inner tube
It is dynamic, to change the flowing velocity of fluid, to achieve the purpose that reduce fluid hydrodynamic noise.
2. refrigerator according to claim 1, wherein
The transitional pipe segment is located at the position that the first fluid delivery pipe closes on the compressor outlet.
3. refrigerator according to claim 1, wherein
The central axes of said inner tube are overlapped with the central axes of the transitional pipe segment.
4. refrigerator according to claim 1, wherein
Said inner tube is conical pipe, and the small-caliber end of the conical pipe is located at the upstream of the fluid flow direction, so that
The fluid is entered in said inner tube by the small-caliber end of the conical pipe.
5. refrigerator according to claim 4, wherein
The cone angle alpha of the conical pipe meets, and 20 °≤α≤60 °.
6. refrigerator according to claim 1, wherein
Said inner tube includes taper pipeline section and the straight pipe that connects with the large diameter end of the taper pipeline section；
And the conical pipe section is located at the upstream of the straight pipe, so that osculum of the fluid by the taper pipeline section
Diameter end enters in said inner tube.
7. refrigerator according to claim 6, wherein
The cone angle alpha of the taper pipeline section meets, and 20 °≤α≤60 °.
8. refrigerator according to claim 1, wherein
The length of the transitional pipe segment is 8cm to 15cm.
9. refrigerator according to claim 1, wherein
The outer wall of said inner tube is formed with multiple circumferentially spaced multiple fins along said inner tube, and said inner tube passes through institute
Multiple fins are stated to be welded on the inner wall of the transitional pipe segment.
10. refrigerator according to claim 9, wherein
The multiple fin is evenly spaced on along the circumferencial direction of said inner tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448969.5A CN109974379A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
| PCT/CN2018/123923 WO2019129065A1 (en) | 2017-12-27 | 2018-12-26 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448969.5A CN109974379A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109974379A true CN109974379A (en) | 2019-07-05 |
Family
ID=67066594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711448969.5A Pending CN109974379A (en) | 2017-12-27 | 2017-12-27 | Refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109974379A (en) |
| WO (1) | WO2019129065A1 (en) |
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| CN110608551A (en) * | 2019-10-11 | 2019-12-24 | 刘坪坪 | Refrigeration compressor based on wind pressure variable flow regulation |
| WO2022152034A1 (en) * | 2021-01-13 | 2022-07-21 | 江森自控空调冷冻设备(无锡)有限公司 | Pipeline provided with silencing structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019129065A1 (en) | 2019-07-04 |
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Application publication date: 20190705 |