CN108204756A - A kind of loop circuit heat pipe - Google Patents
A kind of loop circuit heat pipe Download PDFInfo
- Publication number
- CN108204756A CN108204756A CN201710200489.0A CN201710200489A CN108204756A CN 108204756 A CN108204756 A CN 108204756A CN 201710200489 A CN201710200489 A CN 201710200489A CN 108204756 A CN108204756 A CN 108204756A
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- CN
- China
- Prior art keywords
- tedge
- collector
- constant
- current stabilizer
- pipe
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
Abstract
The present invention provides a kind of heat pipes, including evaporation collector, condensation collector, tedge and return duct, the tedge is connected with evaporation collector and condensation collector, the evaporation collector is located at lower part, the condensation collector is located at top, and the fluid is evaporating collector interior suction thermal evaporation, entering condensation collector by tedge, it is condensed after being exchanged heat in condensation collector, the fluid of condensation returns to evaporation collector by return duct；Setting constant-current stabilizer in the tedge, the interior multiple constant-current stabilizers of setting of same root tedge, along the short transverse of tedge, the spacing between adjacent constant-current stabilizer constantly reduces.The present invention is changed by the spacing of constant-current stabilizer, there are during Gas- liquid two-phase flow in tedge, augmentation of heat transfer, while weaken the vibration of tedge, reduce noise level.
Description
Technical field
The invention belongs to heat pipe field more particularly to a kind of heat exchange heat pipes.
Background technology
Hot pipe technique is George Ge Luofo of U.S. Los Alamos (Los Alamos) National Laboratory in 1963
One kind of (George Grover) invention is known as the heat transfer element of " heat pipe ", it takes full advantage of heat-conduction principle and is situated between with phase transformation
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.
The industries such as aerospace, military project were widely used in before hot pipe technique, since being introduced into radiator manufacturing so that
People change the mentality of designing of traditional heat sinks, have broken away from and simple have obtained the list of more preferable heat dissipation effect by high air quantity motor
One radiating mode using hot pipe technique so that radiator obtains satisfied heat transfer effect, opens heat dissipation industry new world.At present
Heat pipe is widely used in various heat transmission equipments, including nuclear power field, such as UTILIZATION OF VESIDUAL HEAT IN of nuclear power etc..
On the one hand, heat pipe is in evaporation process, inevitably in carrying of liquids to tedge, simultaneously as condensation end
Exothermic condensation so that there are liquid in condensation end, liquid also inevitably enters tedge, so that tedge
Interior fluid is liquid-vapor mixture, while heat pipe in the process of running can be because of the on-condensible gas of aging generation, on-condensible gas one
As rise to the condensation end on heat pipe top, the presence of on-condensible gas causes the pressure in condensation end of heat pipe to increase, and pressure causes
Liquid ramps up Bottomhole pressure.Greatly affect the efficiency of heat exchange.
On the other hand, condensation collector this section, because the space of this section becomes larger suddenly, space are exported to from tedge
Variation can cause the quick of gas to flow upwards out and assemble, therefore spatial variations can lead to the vapour phase (vapour group) assembled from tedge
Position enters condensation collector, and due to gas (vapour) liquid density contrast, air mass, which leaves, to be taken over position and will move rapidly upward, and air mass is former empty
Between position pushed away the liquid of wall surface while will also be sprung back rapidly and hit wall surface by air mass, form impingement phenomenon.Gas (vapour) liquid phase
More discontinuous, air mass aggregation is bigger, and Impact energy is bigger.Impingement phenomenon can cause larger noise vibrations and mechanical shock, right
Equipment damages.
In view of the above-mentioned problems, being improved on the basis of invention in front of the invention, a kind of new heat pipe is provided, from
And solve the problems, such as that the coefficient of heat transfer in the case of heat pipe heat exchanging is low and its heat exchange is non-uniform.
Invention content
The present invention provides a kind of new heat pipe, so as to solve the technical issues of front occurs.
To achieve these goals, technical scheme is as follows：
A kind of damping noise reduction heat pipe, including evaporation collector, condensation collector, tedge and return duct, the tedge is with steaming
Hair collector is connected with condensation collector, and the evaporation collector is located at lower part, and the condensation collector is located at top, and the fluid is steaming
Collector interior suction thermal evaporation is sent out, enters condensation collector by tedge, is condensed after being exchanged heat in condensation collector, the fluid of condensation
Evaporation collector is returned to by return duct；It is characterized in that, setting constant-current stabilizer in the tedge, same root tedge is interior to be set
Multiple constant-current stabilizers, along the short transverse of tedge, the spacing between adjacent constant-current stabilizer constantly reduces.
Preferably, along the short transverse of tedge, the ever-reduced amplitude of spacing between adjacent constant-current stabilizer is got over
Come bigger.
Preferably, the constant-current stabilizer includes core and shell, core setting in the shell, the shell with it is upper
The connection of riser inner wall is fixed, and the core is composed of together a number of pipe adjoining.
Preferably, by setting insert in the space between shell and outermost layer pipe so that tight between pipe
Close connection, while pipe is fixed in the shell.
Preferably, aperture is set to realize perforation between adjacent pipe.
Preferably, the rising inside pipe wall setting groove, the shell of the constant-current stabilizer is arranged in groove, described outer
The inner wall of shell and the aligning inner of tedge.
Preferably, tedge is welded for multi-segment structure, the junction setting constant-current stabilizer of multi-segment structure.
Preferably, the distance between adjacent constant-current stabilizer is S, the length of constant-current stabilizer is C, and the outer diameter of tedge is W,
The pipe diameter of constant-current stabilizer is D, meets following requirement：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
The spacing of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer；
34<W<58mm；
7<D<12mm；
19<C<27mm；
50<S<70mm。
Preferably, the caliber of the evaporation collector is less than the caliber of condensation collector.
Preferably, the internal diameter that the internal diameter of evaporation collector for R1, condenses collector is R2, as preferably then 0.45<R1/R2<
0.88。
Compared with prior art, the present invention has the advantage that：
1) present invention is changed by the spacing of constant-current stabilizer, there are during Gas- liquid two-phase flow in tedge, augmentation of heat transfer,
Weaken the vibration of tedge simultaneously, reduce noise level.
2) present invention sets multitube constant-current stabilizer in tedge, is detached two-phase fluid by multitube constant-current stabilizer
Into liquid phase and vapour phase, liquid phase is divided into small liquid group, vapour phase is divided into minute bubbles, promotes vapour phase smooth outflow, plays stabilization
The effect of flow has the effect of vibration and noise reducing, improves heat transfer effect.
3) present invention is equivalent in tedge by setting multitube constant-current stabilizer and increases inner fin, enhance and change
Heat improves heat transfer effect.
4) present invention avoids only because vehicle repair major is divided in the entire cross-section location of tedge
Tedge internal face is split, so as to entirely rise realized on tube section expand liquid-vaqor interface and vapour phase boundary layer with it is cold
But the contact area of wall surface and enhance disturbance, reduce noise and vibrations, enhance heat transfer.
5) present invention in tedge short transverse by setting distance, the length of constant-current stabilizer between adjacent constant-current stabilizer
Degree, pipe the parameters size such as outer diameter rule variation, so as to further reach steady flow result, reduce noise, improve heat exchange effect
Fruit.
6) present invention has been carried out widely by the rule that exchanges heat caused by the variation to multitube constant-current stabilizer parameters
Research, is meeting flow resistance, is realizing the best relation formula of the effect of vibration and noise reducing.
Description of the drawings
Fig. 1 is the heat pipe structure schematic diagram of the present invention；
Fig. 2 constant-current stabilizer cross-sectional structure schematic diagrames of the present invention；
Fig. 3 is that constant-current stabilizer of the present invention arranges schematic diagram in tedge；
Fig. 4 is another schematic diagram that constant-current stabilizer of the present invention is arranged in tedge.
In figure：1st, collector is evaporated, 2, condensation collector, 3, tedge, 4, constant-current stabilizer, 41 shells, 42 pipes, 5, return duct
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, it is related to formula, "/" represents division, and "×", " * " represent multiplication.
A kind of heat pipe as shown in Figure 1, including evaporation collector 1, condensation collector 2, tedge 3 and return duct 5, the rising
Pipe 3 is connected with evaporation collector 1 and condensation collector 2, and the evaporation collector 1 is located at lower part, and the condensation collector 2 is located at top,
The fluid is evaporating 1 interior suction thermal evaporation of collector, enters condensation collector 2 by tedge 3, exchanges heat in condensation collector 2
After condense, the fluid of condensation returns to evaporation collector 1 by return duct 5；Setting constant-current stabilizer 4, the current stabilization in the tedge 3
As shown in Fig. 2, including core 42 and shell 41, the core 42 is arranged in shell 41 device 4, the shell 41 and tedge
The connection of 3 inner walls is fixed, and the core is to be abutted to be composed together by a number of pipe 42.
Present invention setting multitube constant-current stabilizer in tedge 3, will be in two-phase fluid by multitube constant-current stabilizer
Liquid phase and vapour phase are detached, and liquid phase is divided into small liquid group, vapour phase is divided into minute bubbles, avoid the complete of liquid phase and vapour phase
It separates, promotes liquid vapor phase smooth outflow, play the role of regime flow, there is the effect of vibration and noise reducing.
The present invention is equivalent to by setting multitube constant-current stabilizer and increases inner fin in tedge 3, enhance and change
Heat improves heat transfer effect.
The present invention is because all cross-section locations of the vehicle repair major in tedge 3 are divided, so as on entire
Liquid-vaqor interface and the segmentation in vapour phase boundary layer and the contact area of cooling wall are realized on riser cross section and enhances disturbance, significantly
Reduce noise and vibrations, enhance heat transfer.
Preferably, the position of the both side ends of the connection of return duct 5 evaporation collector 1 and condensation collector 2.Ensure fluid in this way
Flow path in condensation collector 2 is long, can further increase heat-exchange time, improves heat exchange efficiency.
Preferably, by setting insert in the space 43 between shell 42 and outermost layer pipe 41, ensure pipe
Between closely connect, while ensure that pipe 41 is fixed in shell 42.
Preferably, adjacent pipe 41 is by being welded together.It is linked together, ensure that by welding manner
Being connected firmly between pipe 41.
Preferably, aperture is set to realize perforation between adjacent pipe 41.By setting aperture, it is ensured that adjacent pipe
It is interconnected between son, pressure that can uniformly between pipe so that the fluid of high pressure runner flows to low pressure, while can also be
Fluid further separates liquid phase and vapour phase while flowing, is conducive to further stablize two-phase flow.
Preferably, heat exchange pipeline is passed through in condensation collector 2, in the fluid and condensation collector 2 in the heat exchange pipeline
Steam exchanges heat.
Preferably, tedge 3 and evaporation collector 1 are all endothermic sections.
Preferably, along the flow direction (i.e. the short transverse of Fig. 2) of fluid in tedge 3, setting is more in tedge 3
A constant-current stabilizer 4, it is shorter and shorter from the entrance of tedge to the distance between the outlet of tedge, adjacent constant-current stabilizer.If away from
Be the distance between H, adjacent constant-current stabilizer it is S, S=F from rising with a distance from tube inlet1(H), i.e. S is using height H as variable
Function, S ' are the first order derivatives of S, meet following requirement：
S’<0；
Main cause is that carrier's liquid is understood in uphill process because of the steam in tedge, in uphill process, on
Riser is constantly heated, and causes the steam in biphase gas and liquid flow more and more, because the vapour phase in stream-liquid two-phase flow is more and more,
Exchange capability of heat in tedge can increase with vapour phase and weaken relatively, and vibrations and its noise also can be continuous with vapour phase increase
Increase.Therefore need the distance between the adjacent constant-current stabilizer set shorter and shorter.
In addition, export to condensation collector this section, because the space of this section becomes larger suddenly, the variation in space from tedge
The quick of gas can be caused to flow upwards out and assemble, therefore spatial variations can lead to the vapour phase (vapour group) assembled from tedge position
Into condensation collector, due to gas (vapour) liquid density contrast, air mass, which leaves, to be taken over position and will move rapidly upward, and air mass original space bit
It puts and is pushed away the liquid of wall surface while will also be sprung back rapidly and hit wall surface by air mass, form impingement phenomenon.Gas (vapour) liquid phase is more not
Continuously, air mass aggregation is bigger, and water hammer energy is bigger.Impingement phenomenon can cause larger noise vibrations and mechanical shock, to equipment
It damages.Therefore in order to avoid the distance between the generation of this phenomenon, the adjacent constant-current stabilizer set at this time is shorter and shorter,
So as to constantly separate gas phase and liquid phase in fluid delivery process, so as to reduce vibrations and noise to the full extent.
It is found through experiments that, by above-mentioned setting, can both reduce vibrations and noise to the full extent, while can carry
High heat transfer effect.
Further preferably, it is more next from the entrance of tedge 3 to the distance between the outlet of tedge 3, adjacent constant-current stabilizer
Shorter amplitude is continuously increased.That is S " is the second derivative of S, meets following requirement：
S”>0；
It is found through experiments that, sets by doing so, can further reduce by 9% or so vibrations and noise, improve simultaneously
7% or so heat transfer effect.
Preferably, the length of each constant-current stabilizer 4 remains unchanged.
Preferably, other than the distance between adjacent constant-current stabilizer 4, constant-current stabilizer others parameter (such as length,
Caliber etc.) it remains unchanged.
Preferably, along the short transverse of tedge 6, the multiple constant-current stabilizers 5 of setting in tedge 6, from tedge 6
For entrance to the outlet of tedge 6, the length of constant-current stabilizer 5 is increasingly longer.I.e. the length of constant-current stabilizer is C, C=F2(X), C ' is
The first order derivative of C meets following requirement：
C’>0；
Further preferably, from the entrance of tedge to the outlet of tedge, the increasingly longer amplitude of the length of constant-current stabilizer
It is continuously increased.That is C " is the second derivative of C, meets following requirement：
C”>0；
The variation of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the distance between adjacent constant-current stabilizer remains unchanged.
Preferably, the length in addition to constant-current stabilizer is outside one's consideration, constant-current stabilizer others parameter (such as adjacent spacing, caliber
Deng) remain unchanged.
Preferably, along the short transverse of tedge 6, the multiple constant-current stabilizers of setting in tedge 6, from tedge 6
For entrance to the outlet of tedge 6, the diameter of the pipe 51 in different constant-current stabilizers 5 is less and less.That is the pipe of constant-current stabilizer is straight
Diameter is D, D=F3(X), D ' is the first order derivative of D, meets following requirement：
D’<0；
Preferably, from the entrance of tedge to the outlet of tedge, the less and less width of the pipe diameter of constant-current stabilizer
Degree is continuously increased.I.e.
D " is the second derivative of D, meets following requirement：
D”>0。
The variation of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the length of constant-current stabilizer and the distance of adjacent constant-current stabilizer remain unchanged.
Preferably, other than the pipe diameter of constant-current stabilizer, constant-current stabilizer others parameter (such as it is length, adjacent steady
The distance between stream device etc.) it remains unchanged.
Further preferably, as shown in figure 3,3 inside setting groove of the tedge, the shell 42 of the constant-current stabilizer 4 are set
It puts in groove.
Preferably, the aligning inner of the inner wall of shell 42 and tedge 3.Pass through alignment so that tedge internal face table
Reach on face in the same plane, ensure the smooth of surface.
Preferably, the thickness of shell 42 is less than the depth of groove, tedge internal face can be caused to form groove in this way,
So as to carry out augmentation of heat transfer.
Further preferably, as shown in figure 4, tedge 3 is welded for multi-segment structure, the junction setting of multi-segment structure is steady
Flow device 4.This mode to set being simple to manufacture for the tedge of constant-current stabilizer, cost reduction.
It is learnt by analyzing and testing, the spacing between constant-current stabilizer cannot be excessive, leads to damping noise reduction if excessive
Effect it is bad, while can not be too small, cause resistance excessive if too small, similarly, the outer diameter of pipe can not it is excessive or
Too small, the effect for also resulting in damping noise reduction is bad or resistance is excessive, therefore the present invention is through a large number of experiments, preferentially full
The normal flow resistance of foot (total pressure-bearing be 2.5Mpa hereinafter, the on-way resistance of single riser be less than or equal to 5Pa/M)
In the case of so that being optimal of damping noise reduction has arranged the best relationship of parameters.
The distance between adjacent constant-current stabilizer is S, and the length of constant-current stabilizer is C, and the outer diameter of tedge is W, constant-current stabilizer
Tube outer diameter for D, meet following requirement：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
Further preferred 5.1<a<5.5,1.6<b<1.8；
The interval S of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer；I.e. front current stabilization fills
The tail end put and the distance between front end of constant-current stabilizer below.Referring specifically to the mark of Fig. 4.
34mm<W<58mm；
7mm<D<12mm；
19mm<C<27mm；
50mm<S<70mm。
Preferably, rise length of tube L between 3000-5500mm.Further preferably, between 3500-4500mm.
Further preferably, 40mm<W<50mm；
9mm<D<10mm；
22mm<C<25mm；
55mm<S<60mm。
By the preferred of the best geometric scale of above-mentioned formula, can realize under the conditions of meeting normal flow resistance,
Damping noise reduction reaches optimum efficiency.
Further preferably, as the increase of W/D, a constantly reduce, b constantly increases.
Further preferably, a=5.31, b=1.75.
For other parameters, such as the parameters such as tube wall, housing wall thickness are according to normal standard setting.
Preferably, hot tube fluid is water.
Preferably, pipe 41 extends in the whole length direction of constant-current stabilizer 4.I.e. the length of pipe 41 is filled equal to current stabilization
Put 5 length.
Preferably, the caliber of the evaporation collector 1 is less than the caliber of condensation collector 2.
The internal diameter of collector is evaporated for R1, and the internal diameter for condensing collector is R2, as preferably then 0.45<R1/R2<0.88.
By above-mentioned setting, can further augmentation of heat transfer, can improve more than 7% heat exchange efficiency.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should
When being subject to claim limited range.
Claims (10)
1. a kind of loop circuit heat pipe, including evaporation collector, condensation collector, tedge and return duct, the tedge and evaporation collector
It is connected with condensation collector, the evaporation collector is located at lower part, and the condensation collector is located at top, and the fluid is in evaporation collector
Interior suction thermal evaporation enters condensation collector by tedge, is condensed after being exchanged heat in condensation collector, and the fluid of condensation is by returning
Flow tube returns to evaporation collector；It is characterized in that, setting constant-current stabilizer in the tedge, the interior setting of same root tedge is multiple steady
Device is flowed, along the short transverse of tedge, the spacing between adjacent constant-current stabilizer constantly reduces.
2. heat pipe as described in claim 1, which is characterized in that along the short transverse of tedge, between adjacent constant-current stabilizer
The ever-reduced amplitude of spacing it is increasing.
3. heat pipe as described in claim 1, which is characterized in that the constant-current stabilizer includes core and shell, and the core is set
It puts in the shell, the shell connect fixation with rising inside pipe wall, and the core is abutted together by a number of pipe
It is composed.
4. heat pipe as claimed in claim 3, which is characterized in that by being set in the space between shell and outermost layer pipe
Insert so that closely connected between pipe, while pipe is fixed in the shell.
5. heat pipe as claimed in claim 3, which is characterized in that aperture is set to realize perforation between adjacent pipe.
6. heat pipe as claimed in claim 3, which is characterized in that the rising inside pipe wall setting groove, the constant-current stabilizer
Shell is arranged in groove, the inner wall of the shell and the aligning inner of tedge.
7. heat pipe as claimed in claim 6, which is characterized in that tedge is welded for multi-segment structure, the company of multi-segment structure
Connect place's setting constant-current stabilizer.
8. heat pipe as claimed in claim 3, which is characterized in that the distance between adjacent constant-current stabilizer be S, the length of constant-current stabilizer
It spends for C, the outer diameter of tedge is W, and the pipe diameter of constant-current stabilizer is D, meets following requirement：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
The spacing of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer；
34<W<58mm；
7<D<12mm；
19<C<27mm；
50<S<70mm。
9. heat pipe as described in claim 1, which is characterized in that the caliber of the evaporation collector is less than the caliber of condensation collector.
10. heat pipe as claimed in claim 9, which is characterized in that the internal diameter for evaporating collector is R1, and the internal diameter for condensing collector is
R2, as preferably then 0.45<R1/R2<0.88.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710200489.0A CN108204756B (en) | 2017-03-29 | 2017-03-29 | A kind of loop circuit heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710200489.0A CN108204756B (en) | 2017-03-29 | 2017-03-29 | A kind of loop circuit heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108204756A true CN108204756A (en) | 2018-06-26 |
| CN108204756B CN108204756B (en) | 2019-03-08 |
Family
ID=62603756
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710200489.0A Expired - Fee Related CN108204756B (en) | 2017-03-29 | 2017-03-29 | A kind of loop circuit heat pipe |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| US20120057964A1 (en) * | 2009-12-31 | 2012-03-08 | Guangdong Liansu Technology Industrial Co., Ltd. | Impeller type water-hammer proof and silent check valve |
| CN103673418A (en) * | 2012-09-12 | 2014-03-26 | 珠海格力电器股份有限公司 | Refrigerant flow divider flow stabilizer and air conditioner |
-
2017
- 2017-03-29 CN CN201710200489.0A patent/CN108204756B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| US20120057964A1 (en) * | 2009-12-31 | 2012-03-08 | Guangdong Liansu Technology Industrial Co., Ltd. | Impeller type water-hammer proof and silent check valve |
| CN103673418A (en) * | 2012-09-12 | 2014-03-26 | 珠海格力电器股份有限公司 | Refrigerant flow divider flow stabilizer and air conditioner |
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|---|---|
| CN108204756B (en) | 2019-03-08 |
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