CN113338392B - Air water collecting device and method - Google Patents
Air water collecting device and method Download PDFInfo
- Publication number
- CN113338392B CN113338392B CN202110517896.0A CN202110517896A CN113338392B CN 113338392 B CN113338392 B CN 113338392B CN 202110517896 A CN202110517896 A CN 202110517896A CN 113338392 B CN113338392 B CN 113338392B
- Authority
- CN
- China
- Prior art keywords
- water collecting
- air
- water
- pipe
- air duct
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 230000003075 superhydrophobic effect Effects 0.000 description 8
- 238000004088 simulation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003592 biomimetic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- -1 silane modified silica Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Duct Arrangements (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention provides an air water collecting device and method, comprising an air channel and a water collecting core arranged in the inner cavity of the air channel, wherein the air channel is divided into a reducing pipe, a drum pipe and a reducing pipe, two sections of throats are formed at the reducing positions of two ends, the water collecting core comprises a fixed shaft and a plurality of water collecting panels, the fixed shaft is arranged at the center of the air channel, the water collecting panels are arranged up and down along the fixed shaft at intervals, and the flow of air inlet current is more controllable and the concentration degree is higher on the water collecting working surface. The bionic surface of the water collecting surface further accelerates the aggregation of water mist in the air, and improves the water collecting efficiency of the air.
Description
Technical Field
The invention belongs to the technical field of air water collection structure design, and particularly relates to an air water collection device and method.
Background
At present, the air water taking device mostly adopts straight type air pipes, the air flow is dispersed, the water collecting effect is not ideal, and meanwhile, the texture design of the surface of the water collecting surface is also a difficult point. When the infiltration effect is utilized for water collection, the functional surface is designed to have wedge-shaped gradient, round shape and star shape, but the contact angle hysteresis phenomenon is obvious, so that the energy waste and the thermal resistance performance reduction are easy to cause in engineering. In order to modify low surface energy substances and obtain proper super-hydrophobic surface roughness and achieve a super-hydrophobic effect, the preparation technology of the super-hydrophobic coating is divided into a top-down preparation method and a bottom-up preparation method.
The electrostatic spinning technology is an advanced technology widely used for depositing films, manufacturing super-hydrophobic surfaces, synthesizing nano particles and polymers. And the fluororenyl additive is added into the electrospun fiber at the same time, which is favorable for increasing the hydrophobic angle and further promoting the formation of the superhydrophobic surface. Or uniformly mixing the epoxy silane modified silica nano particles with polyvinylidene fluoride (PVDF), and forming a double-scale structure on the surface under the action of self-assembly, so that the film has a larger static contact angle. Whereas, in view of the very limited variety of organic nanofibers, no superhydrophobic surface film with excellent properties is generally obtained.
Template fabrication techniques are another effective means of structuring surface micro/nanostructures. The principle is to copy a pattern or shape with a template and press, print or grow material according to the void of the template. Because errors exist in the size and the performance reliability in the template manufacturing process, the method has a great influence on the prepared super-hydrophobic coating. Therefore, the prepared super-hydrophobic surface has unstable performance reliability.
Disclosure of Invention
The invention aims to solve the technical problems by providing an air water collecting device and an air water collecting method, which utilize Venturi effect, design a matched air duct pipe and plan a water collecting surface by combining a bionic principle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an air water collecting device, its characterized in that includes the wind channel and installs the water collecting core in wind channel inner chamber, the wind channel divide into reducer, drum pipe and reducer, forms two sections throats in both ends reducing department, the water collecting core includes fixed axle and polylith water collecting panel, the center in wind channel is arranged in to the fixed axle, polylith water collecting panel sets up along the fixed axle interval from top to bottom.
According to the scheme, the surface of the water collecting panel is laid with the hydrophobic film, the surface of the hydrophobic film is laid with the hydrophilic film, the hydrophilic film is a honeycomb net film, and a height difference is formed between the hydrophilic film and the hydrophobic film, so that a bionic honeycomb structure is formed.
According to the scheme, the water collecting panel is of a bent panel structure and is installed at an offset angle with the fixed shaft.
According to the scheme, the water collecting panel is three, and three-level water collecting surfaces are formed.
According to the scheme, the top end of the fixed shaft is provided with the fixed support, and the fixed support is connected with the pipe orifice of the air duct.
The beneficial effects of the invention are as follows: the novel water collecting surface design based on the Venturi effect and the honeycomb bionics can be applied to the improvement and improvement of the working part of the air water collector, the Venturi effect is applied to the design of an outer pipeline, the distribution condition of a flow field is greatly improved, and the total air flow quantity contacted with the water collecting surface is increased; meanwhile, the water collecting surface with the honeycomb bionic structure has the advantages of environmental protection, simple structure and the like, and the curved surface form not only ensures that water is easier to leave, but also increases the contact area and assists in optimizing the flow field distribution. By matching with corresponding air inlet, refrigerating and other devices, a better water collecting effect can be realized.
Drawings
FIG. 1 is a half cross-sectional view of one embodiment of the present invention.
Fig. 2 is a schematic structural view of an embodiment of the present invention.
Fig. 3 is a schematic view illustrating installation of a water collecting panel according to an embodiment of the present invention.
Fig. 4 is a schematic view of a water collecting surface of a biomimetic honeycomb structure according to an embodiment of the present invention.
Fig. 5a is a schematic view of a water-collecting core according to an embodiment of the present invention.
Fig. 5b is a fluid simulation diagram of one embodiment of the present invention.
FIG. 6a is a graph showing the flow rate comparison of a straight tube and a duct tube according to an embodiment of the present invention.
FIG. 6b is a flow line comparison of a straight tube and a duct tube according to one embodiment of the present invention.
FIG. 7 is a graph comparing water collection for different coating modes according to one embodiment of the present invention.
FIG. 8 is a graph comparing the air flow in a tube when the angle of placement is 0-90 according to one embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1-4, an air water collecting device comprises an air duct 1 and a water collecting core arranged in an inner cavity of the air duct, wherein an air duct pipe is divided into a reducing pipe 2, a drum pipe 3 and a reducing pipe 4, two sections of throats 5 are formed at reducing positions at two ends, the water collecting core comprises a fixed shaft 6 and a plurality of water collecting panels 7, the fixed shaft is arranged in the center of the air duct, and the plurality of water collecting panels are arranged up and down along the fixed shaft at intervals.
The air duct is designed as a multi-stage venturi tube, the throat parameters of the air duct are simulated, the inlet and outlet diameters of the air duct are 100mm, the throat diameter is 75mm, the length of a diffusion area is 100mm, the diffusion angle is 7.12 degrees, and the air duct is subjected to reasonable fluid simulation (see fig. 5a and 5 b).
Through the research to venturi effect, combine the influence of diffusion angle to venturi intraductal laminar flow, designed the wind channel that utilizes venturi effect to make, moist air can not be because of the coanda effect when getting into the wind channel, reduce with the contact of catchment surface, but impact to catchment surface under the influence of venturi effect, the drum shape expansion department of wind channel pipe diffuse moist air, under venturi effect, also be attracted to catchment surface to improve air and catchment surface contact condition, improve water collection efficiency. Compared with the straight pipe, the drum-shaped expansion area of the air duct has higher flow velocity and more concentrated streamline under the condition of the same inlet velocity through the comparison of the fluent simulation analysis result (see fig. 6a and 6 b).
The surface of the water collecting panel is laid with a hydrophobic film 8, the surface of the hydrophobic film is laid with a hydrophilic film 9, the hydrophilic film is a honeycomb net-shaped film, and the hydrophilic film and the hydrophobic film have a height difference to form a bionic honeycomb structure. The water in the air forms a layer of water film on the hydrophobic layer, because the resistance of the hydrophobic layer to the water flow is larger, and the resistance of the hydrophilic layer to the water flow is smaller, the water film of the hydrophobic region can be converged towards the hydrophilic layer near the wetting region, the water collecting efficiency is quite considerable in laboratory experiments, larger water drops can be formed, and the water drops fall under the action of gravity, so that the water collecting effect is achieved.
The water collection device comprises the following specific contents: when air with high humidity enters the air duct under the action of other external drives, the air gathers in the tapered pipe section, and the air flow is concentrated in the throat; in the diverging section, the gas flow direction is concentrated in the tube due to the high flow rate in the center of the shaft and the low pressure, which are attractive to the peripheral gas. The gas flow device is characterized in that when the gas enters from the lower part, the gas flows along the pipe wall, and the flow speed is increased when the first stage convergent pipe section flows towards the axis. Due to the venturi effect, the velocity of the air flow increases after the throat is concentrated, and after the first stage diverging section exits, a high velocity low pressure region is created centrally in the drum region. The moist air dispersed near the wall surface of the drum-shaped expansion part of the air duct is drawn towards the middle low-pressure area under the Venturi effect, so that the air flow condition is improved. After the first stage of the second stage of the divergent pipe section, the above process is continuously repeated, and the final air flow flows out of the second stage of the divergent pipe section. The special water collecting surface is arranged in the center of the Venturi air duct, so that the contact between the Venturi air duct and the air flow can be increased, the contact condition between the air and the water collecting surface is improved, and the water collecting efficiency is improved. Under the condition of the same inlet speed, the center of the Venturi air channel is higher in flow speed and the streamline is more concentrated compared with the center of the straight pipe. After the water vapor condenses into water on the water collecting surface, the water vapor can flow down along the water collecting surface hydrophobic area under the action of gravity to finish water collection.
Four surface structures are selected for water mist experimental analysis, and the water mist experimental analysis comprises the following steps: hydrophobic coating, hydrophilic-hydrophobic stripe inter-phase coating, and honeycomb hydrophilic-hydrophobic coating designed for use in the present project. The experimental temperature was 20℃and the humidity was 30%.
The results obtained are shown in FIG. 7. The surface of the hydrophobic coating gathers a large amount of small particle water drops, but the collected water quantity is less; the surface of the hydrophilic layer is larger particle water drops, and the collected water quantity is slightly more; the hydrophilic and hydrophobic stripes are less in surface water drops on the interphase coating, and the collected water quantity is more; the surface of the hydrophobic layer of the honeycomb hydrophilic-hydrophobic coating has almost no water drops, and the water quantity collected is the largest.
Experiments show that the honeycomb hydrophilic and hydrophobic coating has the best effect, the hydrophilic layer has strong water vapor capturing capability, the hydrophobic layer has good water fluidity, and water vapor captured by the hydrophilic layer is gathered into droplets near a wetting area and flows to the hydrophobic layer. The rolling angle ROA of the material is smaller than the placing angle, and downward water flow is formed under the action of gravity.
The water collecting panel is a curved panel structure and is installed at an offset angle with the fixed shaft, and the influence on the gas flow rate is reduced as much as possible under the condition of increasing the contact area as much as possible. The water collecting panel is three, and three-level water collecting surfaces are formed. The top end of the fixed shaft is provided with a fixed bracket 10 which is connected with the mouth of the air duct pipe.
The placement angle of the water collection panel in the air duct pipe can directly influence the flow field condition and the effective contact area in the pipe. When the included angle between the water collecting surface and the horizontal plane is gradually increased, the air flow obstruction is gradually reduced, but the effective contact area is also gradually reduced. In Fluent software, flow conditions were simulated for water collection surfaces at 0 °, 30 °, 45 °, 60 °, 90 ° to horizontal, respectively. According to the simulation calculation result, when the inclination angle is 45 degrees and 60 degrees, the flow condition is good, the effective area is large, and the comprehensive benefit is high (see fig. 8).
The present invention is illustrated by way of example and not limitation in the figures of the accompanying drawings, which are intended to be illustrative and not restrictive, and many changes may be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims.
Claims (4)
1. The air water collecting device is characterized by comprising an air duct and a water collecting core arranged in an inner cavity of the air duct, wherein the air duct is a multi-stage venturi tube, the air duct tube is divided into a reducing pipe, a drum-shaped tube and a gradually expanding tube, two sections of throats are formed at reducing positions of two ends, the water collecting core comprises a fixed shaft and a plurality of water collecting panels, the fixed shaft is arranged in the center of the air duct, and the water collecting panels are arranged at intervals up and down along the fixed shaft; the surface of the water collecting panel is laid with a hydrophobic film, the surface of the hydrophobic film is laid with a hydrophilic film, the hydrophilic film is a honeycomb net film, and a height difference is formed between the hydrophilic film and the hydrophobic film, so that a bionic honeycomb structure is formed; the water collecting panel is of a curved panel structure and is installed at an offset angle with the fixed shaft; when entering the air duct, the moist air impacts the water collecting surface, and the moist air dispersed at the drum-shaped expansion part of the air duct pipe is also attracted to the water collecting surface under the Venturi effect, and after water vapor is condensed into water on the water collecting surface, the water vapor flows down along the water collecting surface hydrophobic area under the action of gravity, so that water collection is completed.
2. An air water collection assembly as claimed in claim 1, wherein the water collection panel is formed of three pieces to form a three-level water collection surface.
3. An air water collecting device according to claim 1 or 2, wherein a fixing bracket is arranged at the top end of the fixing shaft, and the fixing bracket is connected with the pipe orifice of the air duct.
4. The water collecting method of the air water collecting device according to claim 3, which is characterized by comprising the following steps:
when air enters the air duct under the action of external drive, the air gathers in the tapered pipe section, and the air flow is concentrated in the throat; in the diffusion section, the flow speed in the center of the shaft is high, the pressure is low, the diffusion section is attractive to peripheral gas, and the gas flows to the pipe to be gathered; the method is characterized in that when air enters from the lower part of an air duct, the air flows along the pipe wall at first, the flow speed is accelerated when the convergent pipe section flows towards the axis, the speed of the air flow is increased after the air flow gathers at the throat part due to the Venturi effect, after the diffusion section of the drum pipe leaves, a high-speed low-pressure area is formed at the center of the drum pipe area, moist air dispersed near the wall surface of the drum expansion part of the air duct is gathered towards the middle low-pressure area under the Venturi effect, so that the air flow condition is improved, after entering the divergent pipe section, the process is continuously repeated, the air flow finally flows out from the divergent pipe, the water collecting surface of the water collecting panel is contacted with the air flow, and after the water vapor condenses on the water collecting surface, the water flows down along the water collecting surface drainage area under the action of gravity, and water collecting is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517896.0A CN113338392B (en) | 2021-05-12 | 2021-05-12 | Air water collecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517896.0A CN113338392B (en) | 2021-05-12 | 2021-05-12 | Air water collecting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113338392A CN113338392A (en) | 2021-09-03 |
| CN113338392B true CN113338392B (en) | 2024-01-23 |
Family
ID=77469277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110517896.0A Active CN113338392B (en) | 2021-05-12 | 2021-05-12 | Air water collecting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113338392B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538011A (en) * | 2003-04-20 | 2004-10-20 | 姚福来 | Device for collecting water from air in dessert region |
| CN103266645A (en) * | 2013-05-03 | 2013-08-28 | 浙江大学 | Bionic portable fog collector |
| CN204626515U (en) * | 2015-05-07 | 2015-09-09 | 潍坊友容实业有限公司 | A kind of water-collecting irrigation device collecting moisture from air |
| CN205403040U (en) * | 2016-03-29 | 2016-07-27 | 重庆大学 | Automatic catch wind type solar chimney system |
| CN205421402U (en) * | 2016-03-14 | 2016-08-03 | 武汉大学 | Bionical formula water extraction from air irrigation equipment |
| CN106968294A (en) * | 2017-05-09 | 2017-07-21 | 中国地质大学（武汉） | A kind of bionic type energy-saving air captation |
| CN107288177A (en) * | 2017-08-14 | 2017-10-24 | 合众高科（北京）环保技术股份有限公司 | A kind of air water fetching device applied to evaporation pond |
| WO2017208194A1 (en) * | 2016-06-01 | 2017-12-07 | Quiroz Garcia Abel Ángel | Device for collecting water from atmospheric air |
| CN109339151A (en) * | 2018-11-21 | 2019-02-15 | 赵彦强 | A kind of captation of Gobi desert ight |
-
2021
- 2021-05-12 CN CN202110517896.0A patent/CN113338392B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538011A (en) * | 2003-04-20 | 2004-10-20 | 姚福来 | Device for collecting water from air in dessert region |
| CN103266645A (en) * | 2013-05-03 | 2013-08-28 | 浙江大学 | Bionic portable fog collector |
| CN204626515U (en) * | 2015-05-07 | 2015-09-09 | 潍坊友容实业有限公司 | A kind of water-collecting irrigation device collecting moisture from air |
| CN205421402U (en) * | 2016-03-14 | 2016-08-03 | 武汉大学 | Bionical formula water extraction from air irrigation equipment |
| CN205403040U (en) * | 2016-03-29 | 2016-07-27 | 重庆大学 | Automatic catch wind type solar chimney system |
| WO2017208194A1 (en) * | 2016-06-01 | 2017-12-07 | Quiroz Garcia Abel Ángel | Device for collecting water from atmospheric air |
| CN106968294A (en) * | 2017-05-09 | 2017-07-21 | 中国地质大学（武汉） | A kind of bionic type energy-saving air captation |
| CN107288177A (en) * | 2017-08-14 | 2017-10-24 | 合众高科（北京）环保技术股份有限公司 | A kind of air water fetching device applied to evaporation pond |
| CN109339151A (en) * | 2018-11-21 | 2019-02-15 | 赵彦强 | A kind of captation of Gobi desert ight |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113338392A (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203525871U (en) | Airflow distribution uniformizing device for electrostatic precipitator | |
| CN103614994A (en) | Energy dissipation flood discharging device | |
| CN105854500B (en) | Turbulent flow reunion room and the method for application reunion room removing superfine particulate matter | |
| CN103359684A (en) | Hydrophobic surface, preparation method and application thereof in dropwise condensation heat transfer | |
| CN2789289Y (en) | Air-jet loom collection energy-saving main nozzle | |
| CN113338392B (en) | Air water collecting device and method | |
| CN206555618U (en) | A kind of static pressure distributor | |
| CN208320457U (en) | The single column double circulation desulphurization system of its device of sieve-board type gas-liquid part flow arrangement and application | |
| CN206300514U (en) | A kind of wet cooling tower demisting and water saving device | |
| CN201316597Y (en) | Alveolate venturi smoke gas dust removal and desulphurization clearing device | |
| CN206001941U (en) | A kind of novel water-saving demisting cooling tower | |
| CN208454818U (en) | A kind of prefabricated rods cvd reactive chamber | |
| CN113797690B (en) | Cascading membrane descending column and device for cross-flow dust removal | |
| CN203487041U (en) | Control device for induced wind | |
| CN202343028U (en) | Side air inlet bag type dust collector with branch chamber inlet valve | |
| CN205678886U (en) | A kind of artificial spout generating means that can administer haze | |
| CN107620128A (en) | A kind of new product line of spinning viscose negative pressure drawing-off pumping air channel | |
| CN203944264U (en) | The adjustable venturi eddy flow of integral type exhaust gas washing tower | |
| CN206996851U (en) | A kind of wet electrical dust precipitator inlet flue duct water conservancy diversion, current equalizer | |
| CN203657590U (en) | High-efficiency liquid separation linkage box for liquid separation type condenser | |
| CN103342351A (en) | Method and device for preparing directionally arranged bucky paper in large scale | |
| CN206676148U (en) | Steam phase transforming is reunited with turbulent flow couples the device of removing fine particle | |
| CN220803789U (en) | Wet electrostatic precipitator entry air current distribution device | |
| CN204952918U (en) | Efficient streamlined buckled plate | |
| CN205561627U (en) | Hydrophone is not received to equidistance variable speed high efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |