CN110411079A - Multistage throttling and pressure reducing device - Google Patents
Multistage throttling and pressure reducing device Download PDFInfo
- Publication number
- CN110411079A CN110411079A CN201910603218.9A CN201910603218A CN110411079A CN 110411079 A CN110411079 A CN 110411079A CN 201910603218 A CN201910603218 A CN 201910603218A CN 110411079 A CN110411079 A CN 110411079A
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- CN
- China
- Prior art keywords
- current
- limiting apparatus
- level
- dropping equipment
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 37
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000005534 acoustic noise Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Pipe Accessories (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides a multistage throttling and pressure reducing device, which comprises at least two flow limiting devices, wherein the first flow limiting device is formed by a bent pipe with a zigzag channel, and the second flow limiting device is formed by a flow limiter with a flow limiting orifice plate; the at least two current limiting devices at least form a secondary current limiting device; the first stage current limiting device adopts a first current limiting device; the second-stage current limiting device adopts a second current limiting device; the fluid needing throttling depressurization enters a multi-stage throttling depressurization device, enters a first-stage flow limiting device for throttling depressurization and then enters a second-stage flow limiting device for throttling depressurization. The invention finally reduces the flowing pressure of the refrigerant by arranging the multistage flow limiting device, so that less liquid flow sound noise can be generated in the flowing process of the refrigerant in the pipeline.
Description
Technical field
The present invention relates to machinery fields, and in particular to a kind of multi-level throttle dropping equipment.
Background technique
In daily life, the phenomenon that being coexisted in many pipelines there are gas-liquid two-phase.Hold when pressure mutates in pipeline
It is also easy to produce liquid stream sound.Within air-conditioning systems, when air-conditioning system in the process of running, liquids and gases form certain ratio in refrigerant
Example, as refrigerant traffic direction changes, the refrigerant of two phases generates discontinuous the continuous impact vibration of the formation of pipeline
Liquid stream sound.
Occur pressure jump in pipeline, pressure can be generated to air conditioner condensation pipeline, reduce its service life.At present for as far as possible
It avoids operation of air conditioner from liquid stream sound occur, mainly avoids the occurrence of cavitation phenomenon, but lack preferable structure at present to reduce pipeline
Pressure change in refrigerant pressure flow process, and then improve flow noise.
Summary of the invention
In consideration of it, the present invention, which provides one kind, can increase refrigerant and loss due to duct friction, refrigerant flow rate is reduced, improves liquid stream
The multi-level throttle dropping equipment of noise, specific:
The present invention provides a kind of multi-level throttle dropping equipment, including at least two current-limiting apparatus, the first current-limiting apparatus by
Bending tube with tortuous passageway is constituted, and second of current-limiting apparatus is made of the current limiter with restriction orifice；Multi-level throttle drop
Pressure device includes at least second level current-limiting apparatus；First order current-limiting apparatus uses the first current-limiting apparatus；Second level current-limiting apparatus is adopted
With second of current-limiting apparatus；It needs the fluid of reducing pressure by regulating flow to enter multi-level throttle dropping equipment, is introduced into first order current-limiting apparatus
Reducing pressure by regulating flow enters back into second level current-limiting apparatus reducing pressure by regulating flow.
Can it is further preferred that multi-level throttle dropping equipment further include after second level current-limiting apparatus is set the third level limit
Device is flowed, the third level current-limiting apparatus uses the first current-limiting apparatus.
Can it is further preferred that second of current-limiting apparatus includes current limiter cavity, current limiter cavity upper end formed into
Mouthful, lower end is formed with outlet, in restriction orifice setting cavity, including with current limiter cavity vertical axis at 0~90 degree first
Restriction orifice and with current limiter cavity vertical axis~0 degree of the second restriction orifice of linear -90 degree.
It can be it is further preferred that the first current-limiting apparatus uses labyrinth type tortuous passageway.
Can it is further preferred that the first current-limiting apparatus as first order current-limiting apparatus by positive U-bend and inverted U-shaped curved
Pipe forms more bending broken pipes, the first current-limiting apparatus as third level current-limiting apparatus forms a bending broken pipe by positive U-bend.
The present invention also provides a kind of air-conditioner outdoor units, are equipped with collector tube, the outlet side of collector tube is provided with described above
Multi-level throttle dropping equipment.
The present invention is arranged bending tube in the first current-limiting apparatus and provides flow region for refrigerant by two kinds of current-limiting apparatus of setting
Domain increases friction loss, reduces the flow velocity of refrigerant, tentatively reduction refrigerant pressure, and restriction orifice is arranged in second of current-limiting apparatus,
Sufficiently increase resistance of the refrigerant in flow process, realizes the decompression again of refrigerant；By the way that multistage current-limiting apparatus, most final decline is arranged
The flowing pressure of low refrigerant can generate less liquid stream acoustic noise in flow process in the duct.
Detailed description of the invention
It is described in detail its example embodiment by referring to accompanying drawing, above and other target disclosed by the invention, feature and excellent
Point will become apparent.Drawings discussed below is only some embodiments disclosed by the invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the multi-level throttle dropping equipment of one embodiment of the invention；
Fig. 2 is the second level current-limiting apparatus structural schematic diagram of one embodiment of the invention；
Fig. 3 is the restriction orifice schematic enlarged-scale view of one embodiment of the invention；
In figure:
1- condenser；2- collector tube；The first connector of 3-；4- first order current-limiting apparatus；The second connector of 5-；6- current limliting
Device；61- current limiter import；The first restriction orifice of 62-；621- metering hole；The second restriction orifice of 63-；64- flow-restrictor exit；65-
Current limiter cavity；7- third connector；8- third level current-limiting apparatus；The 4th connector of 9-；10- condenser outlet pipe；11- throttling dress
It sets；12- valve
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise at least two, but not
It excludes to include at least one situation.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or system including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also
There are other identical elements.
Two kinds of limits are mainly arranged by the way that multistage current-limiting apparatus is arranged in refrigerant flow duct in the present invention in current-limiting apparatus
Device is flowed, bending tube is set in the first current-limiting apparatus for refrigerant, flow region is provided, increase friction loss, reduce the stream of refrigerant
Speed, tentatively reduction refrigerant pressure, second of current-limiting apparatus is interior to be arranged restriction orifice, sufficiently increases resistance of the refrigerant in flow process
Power realizes the decompression again of refrigerant；By being arranged multistage current-limiting apparatus, the final flowing pressure for reducing refrigerant can be
Less liquid stream acoustic noise is generated in pipeline in flow process.Preferably to explain the present invention, to use three-level reducing pressure by regulating flow device
Application in air-conditioner outdoor unit collector tube is illustrated.
Embodiment 1:
The present embodiment provides a kind of multi-level throttle dropping equipment, dropping equipment includes at least two current-limiting apparatus, the first
Current-limiting apparatus is made of the bending tube with tortuous passageway, and second of current-limiting apparatus is made of the current limiter 6 with restriction orifice；
Multi-level throttle dropping equipment includes at least second level current-limiting apparatus, and first order current-limiting apparatus 4 uses the first current-limiting apparatus, the second level
Current-limiting apparatus 5 uses second of current-limiting apparatus；It needs the fluid of reducing pressure by regulating flow to enter multi-level throttle dropping equipment, is introduced into first
Grade 4 reducing pressure by regulating flow of current-limiting apparatus, enters back into 5 reducing pressure by regulating flow of second level current-limiting apparatus.For the reduction for preferably realizing refrigerant flow rate
With increase the resistance in refrigerant flow process, multi-level throttle dropping equipment further includes the after second level current-limiting apparatus 5 is arranged in
Three-level current-limiting apparatus 8, third level current-limiting apparatus 8 use the first current-limiting apparatus.Three-level current limliting is set in refrigerant flow duct
Device can preferably realize the reduction of refrigerant flow rate, avoid the occurrence of cavitation phenomenon, reduce the generation of liquid stream sound.
Preferably, the first current-limiting apparatus uses labyrinth type tortuous passageway, it is preferred that as first order current-limiting apparatus 4
The first current-limiting apparatus forms more bending broken pipes by positive U-bend and inverted U-shaped bend pipe, and first as third level current-limiting apparatus 8
Kind current-limiting apparatus forms a bending broken pipe by positive U-bend.First order current-limiting apparatus 4, third level current-limiting apparatus 8, pass through labyrinth
The use of formula tortuous passageway provides enough flow regions for refrigerant, increases friction loss, reduce the flow velocity of refrigerant, gaseous state
Refrigerant is again introduced into after condenser 1 because flow velocity reduces, and elongated in the 1 the inside liquefied time of condenser, gaseous coolant can liquefy
More sufficiently, the liquid refrigerants ratio of condenser 1 increases, gaseous coolant ratio reduces, change 1 gas, liquid ratio of condenser, into
And improve the liquid stream sound that gaseous coolant generates in 1 liquefaction process of condenser.
Can be further preferred, first order current-limiting apparatus 4 and third level current-limiting apparatus 8 and collector tube 2 are integrally formed, can more into
One step is preferred, and first order current-limiting apparatus 4 and third level current-limiting apparatus 8 are individually formed, first order current-limiting apparatus 4 and third level limit
It flows device 8 and collector tube 2 is welded to connect, welded connecting referred herein is preferably brazed and connects.
Preferably, second of current-limiting apparatus includes current limiter cavity 65, and 65 upper end of current limiter cavity forms current limiter import
61, lower end is formed with flow-restrictor exit 64, and restriction orifice is arranged in current limiter cavity 65, including the first restriction orifice 62 and second
Restricted orifice 621 is arranged on restriction orifice for restriction orifice 63.It can be it is further preferred that in current limiter cavity 65 be arranged in
One restriction orifice 62 and the second restriction orifice 63 can be formed with certain angle.Can a more step it is preferred, 62 He of the second restriction orifice
It is 75 degree~105 degree that second restriction orifice 63, which forms angular range, preferably to increase resistance of the refrigerant in flow process, is increased
Big friction loss reduces the flow velocity of refrigerant, reduces refrigerant pressure, and the second restriction orifice 62 and the second restriction orifice 63 form angle
It is that 90 degree, i.e. the second restriction orifice 62 and the second restriction orifice 63 are vertically set in current limiter cavity 65.
The present embodiment is filled by the preliminary flow velocity for reducing refrigerant of setting of first order current-limiting apparatus 4 by second level current limliting
The friction loss in the first restriction orifice 62 and the second restriction orifice 63 increase refrigerant flow process in 5 is set, refrigerant is reduced
Flow velocity further reduces pressure refrigerant flow by third level current-limiting apparatus 8, improves refrigerant in 1 liquefaction process of condenser
The liquid stream sound of generation.
Embodiment 2:
The present embodiment provides a kind of air-conditioner outdoor units of multi-level throttle dropping equipment in Application Example 1, in collector tube 2
Outlet side is provided with multi-level throttle dropping equipment described in embodiment 1, first order current-limiting apparatus and the third level in the present embodiment
Current-limiting apparatus 8 is preferably individually formed.
Wherein, collector tube 2 and condenser 1 connect, and one end of first order current-limiting apparatus 4 forms the first connector 3 and liquid collecting
One end of pipe 2 is welded, and the other end of first order current-limiting apparatus 4 forms the second connector and the current limiter import 61 of current limiter 6 connects
It connects；One end of third level current limiter 6 forms third connector 7 and the flow-restrictor exit 64 of current limiter 6 connects, third current limiter 6
The other end form the 4th connector 9 and condenser 1 and connect；Gas and liquid are flowed out by condenser outlet pipe 10, in condenser
It is provided with the flow that throttling set 11 controls gas and liquid in outlet pipe 10, is furthermore additionally provided with valve in condenser pipe outlet pipe
12, realize the outflow control of gas and liquid.
Air-conditioner outdoor unit provided in this embodiment is not allowed to be also easy to produce liquid stream sound on startup, can provide the user with preferably
Experience sense.
The structure of multi-level throttle dropping equipment in the present embodiment has been described in embodiment 1, and details are not described herein.
To sum up, multi-level throttle dropping equipment provided by the invention, by the way that multistage current-limiting apparatus is arranged, so that fluid is in pipeline
Flow velocity is reduced in middle flow process, increases the friction loss of fluid, increases the flow resistance in process fluid flow, and then reduce
Fluid flows in the duct generates noise, provides better experience sense for user.
It is particularly shown and described the exemplary embodiment of the disclosure above.It should be appreciated that the present disclosure is not limited to
Detailed construction, set-up mode or implementation method described herein；On the contrary, disclosure intention covers included in appended claims
Various modifications and equivalence setting in spirit and scope.
Claims (6)
1. a kind of multi-level throttle dropping equipment, it is characterised in that:
Including at least two current-limiting apparatus, the first current-limiting apparatus is made of the bending tube with tortuous passageway, second of current limliting
Device is made of the current limiter (6) with restriction orifice；
The multi-level throttle dropping equipment includes at least second level current-limiting apparatus；
First order current-limiting apparatus (4) uses the first current-limiting apparatus；
Second level current-limiting apparatus (5) uses second of current-limiting apparatus；
It needs the fluid of reducing pressure by regulating flow to enter multi-level throttle dropping equipment, is introduced into first order current-limiting apparatus (4) reducing pressure by regulating flow, then
Into second level current-limiting apparatus (5) reducing pressure by regulating flow.
2. multi-level throttle dropping equipment as described in claim 1, it is characterised in that: the multi-level throttle dropping equipment further includes
The third level current-limiting apparatus (8) being arranged after second level current-limiting apparatus (5), the third level current-limiting apparatus (8) use the first
Current-limiting apparatus.
3. such as the described in any item multi-level throttle dropping equipments of claim 1-2, it is characterised in that: second of current-limiting apparatus
Including current limiter cavity (65), current limiter cavity (65) upper end forms import, and lower end is formed with outlet, the restriction orifice
Setting in the current limiter cavity (65), including with current limiter cavity (65) vertical axis at 0~90 degree of the first restriction orifice
(62) and with current limiter cavity (65) vertical axis linear -90~0 degree of the second restriction orifice (63) is spent.
4. multi-level throttle dropping equipment as claimed in claim 3, it is characterised in that: the first described current-limiting apparatus uses labyrinth
Formula tortuous passageway.
5. multi-level throttle dropping equipment as claimed in claim 4, it is characterised in that: described to be used as first order current-limiting apparatus (4)
The first current-limiting apparatus more bending broken pipes are formed by positive U-bend and inverted U-shaped bend pipe, it is described to be used as third level current-limiting apparatus
(8) the first current-limiting apparatus forms a bending broken pipe by positive U-bend.
6. a kind of air-conditioner outdoor unit is equipped with collector tube (2), which is characterized in that the outlet side setting of the collector tube (2) is had the right
Benefit require 5 described in multi-level throttle dropping equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603218.9A CN110411079B (en) | 2019-07-05 | 2019-07-05 | Multistage throttling and pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603218.9A CN110411079B (en) | 2019-07-05 | 2019-07-05 | Multistage throttling and pressure reducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110411079A true CN110411079A (en) | 2019-11-05 |
| CN110411079B CN110411079B (en) | 2023-07-18 |
Family
ID=68360327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603218.9A Active CN110411079B (en) | 2019-07-05 | 2019-07-05 | Multistage throttling and pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110411079B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237677B1 (en) * | 1999-08-27 | 2001-05-29 | Delphi Technologies, Inc. | Efficiency condenser |
| CN101592423A (en) * | 2008-05-26 | 2009-12-02 | 海尔集团公司 | A kind of flow path structure of air conditioning outdoor machine |
| CN103912322A (en) * | 2014-04-12 | 2014-07-09 | 国家电网公司 | Oblique-flow plate type direct air-cooling condensate water energy dissipating device |
| CN104975924A (en) * | 2015-07-31 | 2015-10-14 | 云南大红山管道有限公司 | Widely-applied silencer |
| CN109723926A (en) * | 2019-01-28 | 2019-05-07 | 西南石油大学 | A kind of combined type Gas Exhausting Muffle |
| CN210832639U (en) * | 2019-07-05 | 2020-06-23 | 珠海格力电器股份有限公司 | Multi-stage throttling and pressure reducing device and air conditioner outdoor unit adopting same |
-
2019
- 2019-07-05 CN CN201910603218.9A patent/CN110411079B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237677B1 (en) * | 1999-08-27 | 2001-05-29 | Delphi Technologies, Inc. | Efficiency condenser |
| CN101592423A (en) * | 2008-05-26 | 2009-12-02 | 海尔集团公司 | A kind of flow path structure of air conditioning outdoor machine |
| CN103912322A (en) * | 2014-04-12 | 2014-07-09 | 国家电网公司 | Oblique-flow plate type direct air-cooling condensate water energy dissipating device |
| CN104975924A (en) * | 2015-07-31 | 2015-10-14 | 云南大红山管道有限公司 | Widely-applied silencer |
| CN109723926A (en) * | 2019-01-28 | 2019-05-07 | 西南石油大学 | A kind of combined type Gas Exhausting Muffle |
| CN210832639U (en) * | 2019-07-05 | 2020-06-23 | 珠海格力电器股份有限公司 | Multi-stage throttling and pressure reducing device and air conditioner outdoor unit adopting same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110411079B (en) | 2023-07-18 |
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