CN109539524A - Water distributor - Google Patents
Water distributor Download PDFInfo
- Publication number
- CN109539524A CN109539524A CN201811641607.2A CN201811641607A CN109539524A CN 109539524 A CN109539524 A CN 109539524A CN 201811641607 A CN201811641607 A CN 201811641607A CN 109539524 A CN109539524 A CN 109539524A
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- Prior art keywords
- water
- water distribution
- cap
- curvature
- elbow
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- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 262
- 238000005452 bending Methods 0.000 claims description 24
- 230000007704 transition Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 239000012530 fluid Substances 0.000 description 10
- 230000001936 parietal effect Effects 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of water distributors, including water distributor, one end of the water distributor connects water main, and the other end of the water distributor is equipped with water distribution elbow, it is in horn-like gradually wealthy cap that water distribution elbow bottom, which is equipped with, is fixed with diffusing baffle at the set distance below the water distribution elbow.Water distributor provided by the invention, effectively promotion uniformity of water distribution, guarantee water distribution effect.
Description
Technical field
The present invention relates to water temperature natural layered water energy storage equipment technical fields, specifically, being related to a kind of water distributor.
Background technique
Water cold storage technology is the sensible heat storage energy using water, has many advantages, such as low cost, stable, easy to maintain,
It is the effective means for solving air conditioning system increase-volume and " peak load shifting ".Water temperature natural layering is the water due to different temperatures
Natural layering of the water caused by density contrast on gravity direction.In natural layered catch basin, cold water is gathered in catch basin
Lower part, hot water aggregate forms the natural layering of hot water or cold water on the top of catch basin, in order to make water with gravity stream or piston flow
It is smoothly drawn in lead-in groove or in slot, water-distributing device appropriate is set in cold water import and export, to ensure water flow in sink
Inside evenly distribute.
The rotation of water-distributing device and arrangement directly affect the operational efficiency of energy-storage system in water accumulation of energy slot.To guarantee water distribution
Uniformly, water distributor wants cloth as uniform as possible in sink, and according to the shape of sink, the water distributor branch pipe of through slot can press branch cloth
It sets.When the floor space of sink is larger, through slot water distribution branch pipe is arranged to multilayer, but still is kept on sink section as far as possible
Uniform fluid flow.
In order to ensure water distribution effect, it usually needs reach higher cloth water density, i.e., the interval between water distributor will be as far as possible
It is small, and the interval of water distributor will be also consistent, therefore most water distribution head all passes through elbow and is connected with water distribution pipe network,
And opening of the elbow from water distribution head usually with a distance from close, water flow energy imbalance inside and outside elbow, the water flow on the outside of curved pipe
Speed is larger, and the water velocity of bend pipe to inside is smaller, and the water flow energy imbalance of generation has seriously affected the disengaging of water distribution head
Water is uniformly distributed and water distribution effect.
Summary of the invention
The purpose of the present invention is to provide a kind of water distributors, effectively promotion uniformity of water distribution, guarantee water distribution effect.
Technical solution used by water distributor disclosed by the invention is:
One end of a kind of water distributor, including water distributor, the water distributor connects water main, and the other end of the water distributor is set
There is water distribution elbow, it is in horn-like gradually wealthy cap, the set distance below the water distribution elbow that water distribution elbow bottom, which is equipped with,
Place is fixed with diffusing baffle.
Preferably, the diffusing baffle is fixed with water distribution component, and the water distribution component head is located in gradually wealthy cap, water flow
Flow after water distribution component shunting along water distribution component all directions is identical.
Preferably, the water distribution component is located at the center of diffusing baffle.
Preferably, the gradually wealthy cap include connect the interior bending part with first curvature of water distribution inner side of elbow with
The outer bending part with first curvature on the outside of water distribution elbow is connected, the interior bending part Curvature varying is big, the outer bending part
Curvature varying is small.
Preferably, the outer surface of the water distribution component is curved surface, and the water distribution component includes close to the interior bending part
The third curved surface with third curvature, close to the outer bending part the 4th curved surface with the 4th curvature, the 4th curved surface
4th Curvature varying is smaller, and the third Curvature varying of third curved surface is larger.
Preferably, the top surface of the diffusing baffle is arc surface or plane.
Preferably, the bottom surface of the gradually wealthy cap is connected with diffusing baffle by several supporting elements, entire supporting element
It is fixedly connected respectively with the gradually bottom surface of wealthy cap and the top surface of diffusing baffle.
Preferably, the water distribution elbow and gradually wealthy cap is integrally formed.
Preferably, several supporting elements are distributed in the edge of the diffusing baffle.
Preferably, the supporting element includes several cylinders, and main body both ends are kept off with the gradually bottom surface of wealthy cap, diffusing respectively
The top surface of plate is fixedly connected.
The beneficial effect of water distributor disclosed by the invention is: water flow flows to water distributor from water main, after water distribution elbow,
Water (flow) direction changes, while water flow is also easy to produce energy imbalance, (water distribution on the outside of water distribution elbow inside and outside water distribution elbow
Elbow interior wall) water velocity it is larger, the water velocity of water distribution inner side of elbow (inside water distribution elbow) is smaller, and water flow is also easy to produce disorderly
Disorderly.It is in horn-like gradually wealthy cap by the setting in water distribution elbow bottom, according to the wall attachment effect and fluid mechanics principle of fluid, from
The water flow that water distribution elbow comes out can be flowed along gradually wealthy cap, and gradually wealthy cap can not only reduce flow resistance, and make water flow again
Restore uniformly, to reduce the impact force to diffusing baffle.Finally by diffusing baffle and gradually the gap between wealthy cap is uniformly around
Outflow.When letting cool also similarly, it is flowed by the gap gradually between wealthy cap and diffusing baffle, by the guiding of gradually wealthy cap, makes water flow
It is more steady, water main is entered using water distribution elbow.The uniformity of water distribution for effectively promoting water distributor, guarantees water distribution effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of water distributor of the present invention；
Fig. 2 is the front view of water distributor of the present invention；
Fig. 3 is the top view of water distributor of the present invention.
Fig. 4 is the front view of another embodiment of water distributor of the present invention.
Specific embodiment
The present invention is further elaborated and is illustrated with Figure of description combined with specific embodiments below:
Please refer to Fig. 1-Fig. 3, a kind of water distributor, including water distributor 11 and water distribution elbow 12, one end connection of water distributor 11
Water main, water distributor install water distribution elbow 12, and it is in horn-like gradually wealthy cap 13 that 12 bottom of water distribution elbow, which is equipped with,.Under water distribution elbow 12
Diffusing baffle 14 is fixed at the set distance of side.Gradually wealthy cap 13 includes connection water distribution inner side of elbow with first curvature R1
The outer bending part 132 with first curvature R2 on the outside of interior bending part 131 and connection water distribution elbow, interior 131 curvature of bending part become
Change greatly, outer 132 Curvature varying of bending part is small.By the way that gradually wealthy cap 13 is arranged, using the wall attachment effect and fluid mechanics principle of fluid,
The flow resistance of water flow is effectively reduced, and makes water flow by the interior bending part 131 and outer bending part 132 of gradually wealthy cap 13, effectively offsets
Water flow passes through the disorder that water distribution elbow 12 generates, and water flow is made to keep stablizing.Water distribution elbow 12 and gradually wealthy cap 13 is integrally formed, makes
The inside of water distribution elbow 12 and gradually wealthy cap 13 keeps smooth, reduces the flow resistance to water flow.
Diffusing baffle 14 is closely gradually the surface of wealthy cap 13 is fixed with water distribution component 15.The outer surface of water distribution component is curved surface, divides water
Body 15 includes the third curved surface 151 with third curvature R3 close to the interior bending part 131, close to the outer bending part 132
The 4th curved surface 152 with the 4th curvature R4, the 4th curvature R4 variation of the 4th curved surface 152 is smaller, the of third curved surface 151
Three curvature R3 are changed greatly.And the bottom of water distribution component 15 and diffusing baffle 14 pass through smooth curved transition, the bottom of water distribution component 15
Portion includes the 5th curved surface 153 with the 5th curvature close to interior bending part 131, close to the outer bending part 132 with the
The 6th curved surface 154 of six curvature R6.By the 5th curved surface 153 and the 6th curved surface 154 to the water conservancy diversion of water flow, it can reduce and diffusing is kept off
The impact of plate 14.
Water distribution component 15 is located at the center of diffusing baffle 14.When passing through water distribution elbow 12 due to water flow, the extruding of water flow,
It is easy to produce the disorder of water flow, by water distribution component 15, water conservancy diversion is carried out to water flow, so that water flow is restored steady, and pass through software
Digital simulation obtains the position at 15 tip of water distribution component, by water distribution component 15, keeps the flow of flow direction all directions identical, is promoted
The uniformity of water distribution.That is, water flow, after water distribution component 15, the flow to the water flow of all directions is identical.
Gradually the frictional resistance of the outer surface of the inside curved surfaces and water distribution component 15 of wealthy cap 13 can allow the two sides of water flow to generate
Pressure difference.The presence of pressure difference generates water flow close to the inside curved surfaces of gradually wealthy cap 13 and the outer arcuate table of water distribution component 15
The attached parietal layer in face, and water flow is attached to pressure of the pressure less than the other side of attached side surface side, and solid water stream is under the action of pressure difference
It is deflected to low-pressure side, to reach stable jet attached flow state.Its principle is specific as follows.
When water flow with gradually the inside curved surfaces of wealthy cap 13 and the outer arcuate surface of water distribution component 15 contact when, gradually wealthy cap 13
Inside curved surfaces and water distribution component 15 outer arcuate surface on viscous drag can cause water flow speed reduction, water flow is in gradually wealthy cap
Pressure on 13 inside curved surfaces and the outer arcuate surface of water distribution component 15 is ps, and ps is less than the pressure p of ambient water
∞ adheres to flowing so as to cause water flow on the gradually inside curved surfaces of wealthy cap 13 and the outer arcuate surface of water distribution component 15.But
There is viscosity, the viscosity between water flow will lead to the reduction of flow rate of water flow, pressure of the flow action on wall surface between water flow
Power can be gradually decreased with the reduction of flow velocity, and as ps=p ∞, water flow can be detached from the gradually inside curved surfaces of wealthy cap 13 and divide
The outer arcuate surface of water body 15.
In the flow process of water flow, the stream of the variation meeting attached parietal layer of significant impact of the barometric gradient of water flow on flow direction
Dynamic state.Positive pressure force gradient is conducive to the attached wall of water flow, is not likely to produce obscission.Since the viscous drag of attachment wall surface acts on,
Attachment water flow generates biggish barometric gradient in boundary layer, and biggish friction resistance is generated according to interior law of friction, in boundary layer
Power, the pressure of attachment water flow increases when water flow flows and speed reduces, and the part kinetic energy of water flow is consumed, and causes attached wall water flow
Flow velocity reduce, the kinetic energy of the water flow in attached parietal layer is gradually lowered.When water flow dynamic energy is reduced to zero, close to the water of attached wall surface
Stream occurs to stagnate and flow backwards, and attached parietal layer is detached from from attachment surface.
Gradually the radian on the outer arcuate surface of the inside curved surfaces and water distribution component 15 of wealthy cap 13 forms wall attachment effect
Key, gradually it is attached will to directly affect water flow generation for the curvature on the outer arcuate surface of the inside curved surfaces and water distribution component 15 of wealthy cap 13
Barometric gradient and the pressure loss when wall effect.In water flow flow process, barometric gradient influences critical Reynolds number, even if flowing
There is very little barometric gradient on dynamic direction, entire attached parietal layer flowing can also be made to change.It is attached that positive pressure force gradient is conducive to fluid
Wall, it is not easy to unsteady flow occur, negative sequence harmonic is then unfavorable for the attached wall of fluid, is easy to happen unsteady flow, so as to cause attached jet body hair
Raw attached parietal layer separation.
Different curvature body surface has a great impact to wall attachment effect.Therefore the present invention is by flaring cap 13 and Fen Shui
The first curvature R1 of body 15, torsion R2, the song of third curvature R3, the 4th curvature R4, the 5th curvature R5 and the 6th curvature R6
Rate setting and the position setting of water distribution component 15, the position of water distribution component 15 pass through 15 head of water distribution component and 12 end of water distribution elbow
The distance A and B at center determines that A is the horizontal distance on 15 head of water distribution component and 12 end center of water distribution elbow, and B is water distribution component
The vertical range on 15 heads and 12 end center of water distribution elbow, water distribution component 15 make fluid along the four of flaring cap 13 and water distribution component 15
The flow of Zhou Shuiliu keeps uniform.And the impact force to lower plate can reduce by water distribution component 15, reduce flow resistance, utilize flaring
Cap 13 and water distribution component 15 make water flow change direction and spread around, while balancing water flow and counteracting 12 bring of water distribution elbow
Flow is uneven.
The curvature of the curvature R3 of water distribution component 15 is larger, and the curvature of R4 is smaller, can make the flow velocity of the attached parietal layer of water flow from
It is gradually expanded to and gradually becomes smaller, be finally detached from 15 wall surface of water distribution component and flowed to bottom surface and surrounding.
Gradually the bottom surface of wealthy cap 13 and diffusing baffle 14 are connected by several supporting elements 16, entire supporting element 16 respectively with it is gradually wealthy
The bottom surface of cap 13 is fixedly connected with the top surface of diffusing baffle 14.Several supporting elements 16 are distributed in the edge of diffusing baffle 14.Support
Part 16 includes several cylinders, and main body both ends are fixedly connected with the gradually bottom surface of wealthy cap 13, the top surface of diffusing baffle 14 respectively.Several columns
Body is uniformly distributed in gradually between the bottom surface of wealthy cap 13, the top surface of diffusing baffle 14.Several cylinders are cylinder column or prism-shaped.Pass through
Supporting element 16 separates gradually wealthy cap 13 and diffusing baffle 14, make water flow to different directions be distributed, while supporting element 16 be it is cylindric or
Prism-shaped, can effective less flow resistance, and water is made to generate cylinder flow-disturbing, further respectively water flow, promotes water distribution effect.
Referring to FIG. 4, the top of diffusing baffle 14 makes water by the design of arc surface for arc surface in another embodiment
Stream is buffered, and by wall attachment effect, the diffusing baffle 14 of arc surface plays the role of water conservancy diversion, mentions water distribution more evenly
Rise water distribution effect.
In above scheme, water flow flows to water distributor 11 from water main, and after water distribution elbow 12, water (flow) direction changes
Become, while water flow is also easy to produce energy imbalance, 12 outside (water distribution elbow interior wall) of water distribution elbow inside and outside water distribution elbow 12
Water velocity it is larger, the water velocity in the outside of water distribution elbow 12 (inside water distribution elbow) is smaller, and water flow is also easy to produce disorder.Pass through
In 12 bottom of water distribution elbow, setting is in horn-like gradually wealthy cap 13, according to the wall attachment effect and fluid mechanics principle of fluid, from cloth
The water flow that water elbow 12 comes out can be flowed along gradually wealthy cap 13 and water distribution component 15, and gradually wealthy cap 13 and water distribution component 15 not only can be with
Flow resistance is reduced, and water flow is made to restore uniform again.The shunting for passing through water distribution component 15 again, makes water flow finally by diffusing baffle 14
Gradually the gap between wealthy cap 13 is uniformly flowed out around, and the flow of water distributor all directions is consistent, and keeps water distribution more equal
It is even, promote water distribution effect.When letting cool also similarly, it is flowed by the gap gradually between wealthy cap 13 and diffusing baffle 14, by gradually wealthy
The guiding of cap 13 and water distribution component 15 keeps water flow more steady, enters water main 11 using water distribution elbow 12.Effectively promote cloth
The uniformity of water distribution of hydrophone guarantees water distribution effect.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of water distributor, including water distributor, which is characterized in that one end of the water distributor connects water main, the water distributor
The other end be equipped with water distribution elbow, water distribution elbow bottom be equipped be in horn-like gradually wealthy cap, below the water distribution elbow
Set distance at be fixed with diffusing baffle.
2. water distributor as described in claim 1, which is characterized in that the diffusing baffle is fixed with water distribution component, the water distribution component
Head is located in gradually wealthy cap, and the flow that water flows through after the water distribution component shunts along water distribution component all directions is identical.
3. water distributor as claimed in claim 2, which is characterized in that the water distribution component is located at the center of diffusing baffle.
4. water distributor as claimed in claim 2, which is characterized in that the gradually wealthy cap includes connecting having for water distribution inner side of elbow
The interior bending part and the outer bending part with first curvature on the outside of connection water distribution elbow of first curvature, the interior bending part curvature
Variation is big, and the outer bending part Curvature varying is small.
5. water distributor as claimed in claim 4, which is characterized in that the outer surface of the water distribution component is curved surface, the water distribution component
Including the third curved surface with third curvature close to the interior bending part, there is the 4th curvature close to the outer bending part
4th Curvature varying of the 4th curved surface, the 4th curved surface is smaller, and the third Curvature varying of third curved surface is larger, and the bottom of water distribution component
With diffusing baffle by smooth curved transition, the bottom of water distribution component includes the 5th song with the 5th curvature close to interior bending part
Face, close to the 6th curved surface with the 6th curvature of the outer bending part.
6. water distributor as claimed in claim 4, which is characterized in that the top surface of the diffusing baffle is arc surface or plane.
7. water distributor described in any one of claims 1-6, which is characterized in that the bottom surface of the gradually wealthy cap and diffusing baffle pass through
Several supporting element connections, entire supporting element are fixedly connected with the gradually bottom surface of wealthy cap and the top surface of diffusing baffle respectively.
8. water distributor as claimed in claim 7, which is characterized in that the water distribution elbow and gradually wealthy cap is integrally formed.
9. water distributor as claimed in claim 7, which is characterized in that several supporting elements are distributed in the side of the diffusing baffle
Edge.
10. water distributor as claimed in claim 7, which is characterized in that the supporting element includes several cylinders, main body both ends respectively with
Gradually the bottom surface of wealthy cap, diffusing baffle top surface be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641607.2A CN109539524B (en) | 2018-12-29 | 2018-12-29 | Water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641607.2A CN109539524B (en) | 2018-12-29 | 2018-12-29 | Water distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109539524A true CN109539524A (en) | 2019-03-29 |
| CN109539524B CN109539524B (en) | 2024-05-03 |
Family
ID=65831384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811641607.2A Active CN109539524B (en) | 2018-12-29 | 2018-12-29 | Water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109539524B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864582A (en) * | 2019-12-16 | 2020-03-06 | 深圳市博信节能科技有限公司 | Water distribution head |
| CN112402635A (en) * | 2020-11-30 | 2021-02-26 | 四川科伦药业股份有限公司 | Water bath sterilization equipment capable of remarkably improving medicine sterilization effect |
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| CN202315466U (en) * | 2011-11-16 | 2012-07-11 | 北京博汇特环保科技有限公司 | Annular space type water distributor of filter |
| CN105003289A (en) * | 2015-08-12 | 2015-10-28 | 山西煤炭进出口集团科技发展有限公司 | Diffusion tower for mine air return and heat exchange |
| RU2653462C1 (en) * | 2017-07-07 | 2018-05-08 | Олег Савельевич Кочетов | Heat recovery unit with boiling bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864582A (en) * | 2019-12-16 | 2020-03-06 | 深圳市博信节能科技有限公司 | Water distribution head |
| CN112402635A (en) * | 2020-11-30 | 2021-02-26 | 四川科伦药业股份有限公司 | Water bath sterilization equipment capable of remarkably improving medicine sterilization effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109539524B (en) | 2024-05-03 |
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