CN207363819U - A kind of liquid squash type Pneumatic heating device based on multi-level throttle - Google Patents
A kind of liquid squash type Pneumatic heating device based on multi-level throttle Download PDFInfo
- Publication number
- CN207363819U CN207363819U CN201720441877.3U CN201720441877U CN207363819U CN 207363819 U CN207363819 U CN 207363819U CN 201720441877 U CN201720441877 U CN 201720441877U CN 207363819 U CN207363819 U CN 207363819U
- Authority
- CN
- China
- Prior art keywords
- drive link
- level throttle
- heating device
- type pneumatic
- squash type
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses a kind of liquid squash type Pneumatic heating device based on multi-level throttle, including wind energy conversion system, vertical axis, rotation transfer, feed belt, driving disk, eccentric wheel, the first mechanical linkage, the second mechanical linkage, piston, multi-stage flow-throttling device, bi-directional compression cylinder, half sacculus of chilled water coil, pyrogenicity device and closing；Wind energy conversion system uses darrieus formula H-type vertical axis windmill, solves the problems, such as that vertical axis windmill power coefficient is relatively low；Pyrogenicity element uses multi-level throttle pore structure, and pressure difference is excessive before and after solving the problems, such as single throttle orifice；Bi-directional compression cylinder employs vacuum heat-insulating plate as insulating layer, solves the problems, such as that heat losses are excessive；Liquid squash type Pneumatic heating device threshold wind velocity of the utility model based on multi-level throttle is low, and heating efficiency is high, and heat production utilization rate is high, simple in structure, strength of materials requirement is low, and production cost is low, it is durable, suitable for various climatic environments, there is preferable practicality and economy.
Description
Technical field
Pneumatic heating device technical field is the utility model is related to, particularly a kind of liquid squash type based on multi-level throttle
Pneumatic heating device.
Background technology
Wind energy is a kind of regenerated resources of clean, inexhaustible, nexhaustible sustainable use, in current fossil energy
In the case that source faces the serious pollution of exhausted and ecological environment, the Efficient Development of wind energy utilizes becomes China or even world energy sources
One big hot spot of exploitation, the conversion form of wind energy is varied, can be exchanged into electric energy, mechanical energy, thermal energy etc..At present, state
Inside and outside research is concentrated mainly on wind power generation field, in fact, in actual production, life, desirable energy is big
Part is finally embodied in the form of low grade heat energy, if can be used to unstable wind energy produce thermal energy, can effectively be alleviated
The severe energy, environmental problem at present, bring huge social benefit and environmental benefit.Wind energy pyrogenicity has energy conversion efficiency
It is high, low to the quality requirements of wind, adapt to wind field width, match that preferable, pyrogenicity system is relatively easy, cost is more low excellent with wind energy conversion system
Point, therefore wind energy pyrogenicity technology has preferable development prospect.
Utility model content
The purpose of this utility model is to provide a kind of liquid squash type Pneumatic heating device based on multi-level throttle, wind-force
Machine drives the piston motion in bi-directional compression cylinder by vertical axis, driving disk and mechanical linkage, and threshold wind velocity is low, heating
Efficient, heat production utilization rate is high, simple in structure, and strength of materials requirement is low, and production cost is low, easy for installation, safeguards simple, operation
Stablize.
The technical solution for realizing the utility model aim is：
A kind of liquid squash type Pneumatic heating device based on multi-level throttle, it is characterised in that including wind energy conversion system, vertically
Axis, rotate transfer, feed belt, driving disk, eccentric wheel, the first mechanical linkage, the second mechanical linkage, work
Plug, multi-stage flow-throttling device, bi-directional compression cylinder, half sacculus of chilled water coil, pyrogenicity device and closing；The wind energy conversion system is arranged on vertically
The top of axis, the bottom of vertical axis are connected with rotating transfer, rotate transfer and are connected to transmission by feed belt
Disk；The driving disk is connected by concentric shafts with eccentric wheel, and eccentric wheel passes through the first mechanical linkage and closing half
Sacculus is connected, and half sacculus of closing is located on multi-stage flow-throttling device；The driving disk passes through the second mechanical linkage and work
Plug is connected, and piston is located in bi-directional compression cylinder；Chilled water coil, multistage are disposed with from top to bottom inside the pyrogenicity device
Throttling arrangement, bi-directional compression cylinder；It will be divided into inside the pyrogenicity device filled with fluid, the multi-stage flow-throttling device inside pyrogenicity device
Upper and lower two parts.
Preferably, first mechanical linkage includes the first drive link, the second drive link, reversing bar and the 5th transmission
Bar；The eccentric wheel is connected with one end of the first drive link, and the other end of the first drive link is connected with one end of reversing bar,
The other end of reversing bar is connected with one end of the second drive link, one end phase of the other end of the second drive link and the 5th drive link
Connection, the other end of the 5th drive link are connected with half sacculus of closing.
Preferably, second mechanical linkage includes the 3rd drive link and the 4th drive link；The driving disk with
One end of 3rd drive link is connected, and the other end of the 3rd drive link is connected with one end of the 4th drive link, the 4th drive link
The other end be connected with piston.
Preferably, two multi-level throttle passages are provided with the multi-stage flow-throttling device, two multi-level throttle passages or so
Symmetrical, a connector of each multi-level throttle passage is located at the middle part of multi-stage flow-throttling device top surface, and each multi-level throttle leads to
Another connector in road is located at the end of multi-stage flow-throttling device bottom surface.
Preferably, insulating layer is provided with the outside of the pyrogenicity device, insulating layer is made of vacuum heat build-up material.
Preferably, the wind energy conversion system uses darrieus formula H type vertical axis windmills.
Preferably, the fluid uses hydraulic oil or conduction oil.
The utility model compared with prior art, its remarkable advantage：
（1）Liquid squash type Pneumatic heating device of the utility model based on multi-level throttle is hung down using darrieus formula H types
D-axis wind energy conversion system, drives the piston motion in bi-directional compression cylinder by vertical axis, rotating circular disc and mechanical linkage, starts
Wind speed is lower；The tip speed ratio of darrieus formula H type vertical axis windmills can reach 6, fundamentally solve vertical-shaft wind
The problem of machine power coefficient is relatively low so that H types vertical axis windmill can start in the incoming of 2 m/s, vertically
Axis wind energy conversion system is suitable for the incoming of any direction, and without complicated steering and speed adjusting gear, structure is relatively simple, and reliability is high,
Have the advantages that vane stress characteristic is relatively stable, unit durability is long at the same time.
（2）Liquid squash type Pneumatic heating device of the utility model based on multi-level throttle can using multi-stage flow-throttling device
The larger pressure drop of shared, pressure difference is excessive before and after can effectively solve the problem that throttle orifice, and there may be cavitation at the hole wall that throttles to show
The problems such as with larger noise, make heating efficiency higher.
（3）Pyrogenicity device insulating layer uses in liquid squash type Pneumatic heating device of the utility model based on multi-level throttle
Vacuum thermal insulation material, vacuum heat-insulating plate use vaccum thermal insulation technique, make thermal conductivity factor as low as 0.004W/ (m K) below,
/ 10th of only common thermal insulation material, so its high insulating effect, can reduce the loss of heat production to the full extent, make heat
Energy utilization rate is more preferable；Liquid squash type Pneumatic heating device of the utility model based on multi-level throttle has simple in structure, production
Cost is low, easy for installation, it is stable the characteristics of.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structure diagram of liquid squash type Pneumatic heating device of the utility model based on multi-level throttle.
Fig. 2 is the flow schematic diagram of pyrogenicity device inner fluid when piston moves right in the utility model.
Flow schematic diagrams of the Fig. 3 for piston in the utility model to pyrogenicity device inner fluid during left movement.
Fig. 4 is the structure diagram of multi-level throttle passage in the utility model.
Fig. 5 is the structure diagram of insulating layer on the outside of pyrogenicity device in the utility model.
Embodiment
Embodiment 1：
As shown in Figure 1, a kind of liquid squash type Pneumatic heating device based on multi-level throttle, including darrieus formula H types
Vertical axis windmill 1, vertical axis 2, rotate transfer 3, feed belt 4, driving disk 5, eccentric wheel 6, the first mechanical linkage
Device, the second mechanical linkage, piston 10, multi-stage flow-throttling device 12, bi-directional compression cylinder 13, chilled water coil 15, pyrogenicity device
16 and closing half sacculus 19；The wind energy conversion system 1 is nested with the top of vertical axis 2, and the bottom of vertical axis 2 is with rotating transfer 3
It is connected, rotates transfer 3 and driving disk 5 is connected to by feed belt 4；The driving disk 5 is by concentric shafts and partially
Heart wheel 6 is connected, and eccentric wheel 6 is connected by the first mechanical linkage with half sacculus 19 of closing, and half sacculus 19 of closing is located at
On multi-stage flow-throttling device 12；The driving disk 5 is connected by the second mechanical linkage with piston 10, and piston 10 is positioned at double
Into compression cylinder 13；Chilled water coil 15, multi-stage flow-throttling device 12, double is disposed with inside the pyrogenicity device 16 from top to bottom
To compression cylinder 13；Can be by multi-stage flow-throttling device 12 in bi-directional compression gas filled with fluid, fluid inside the pyrogenicity device 16
Cylinder 13 and 15 spatial flow of chilled water coil, the fluid use hydraulic oil or conduction oil；The outside of pyrogenicity device 16 is provided with guarantor
Warm layer 14, insulating layer 14 are made of vacuum heat-insulating plate thermal insulation material；The multi-stage flow-throttling device 12 is by 16 inside points of pyrogenicity device
Into upper and lower two parts, two multi-level throttle passages are provided with the multi-stage flow-throttling device 12, two multi-level throttle passages or so
Symmetrical, connector an a, b of each multi-level throttle passage is located at the middle part of 12 top surface of multi-stage flow-throttling device, each multistage section
Another connector of circulation road is located at the end of 12 bottom surface of multi-stage flow-throttling device.
First mechanical linkage includes the first drive link 7, the second drive link 8,11 and the 5th drive link of reversing bar
18；The eccentric wheel 6 is connected with one end of the first drive link 7, the other end of the first drive link 7 and one end phase of reversing bar 11
Connection, the other end of reversing bar 11 are connected with one end of the second drive link 8, the other end of the second drive link 8 and the 5th transmission
One end of bar 18 is connected, and the other end of the 5th drive link 18 is connected with half sacculus 19 of closing.
Second mechanical linkage includes the 3rd drive link 9 and the 4th drive link 17；The driving disk 5 and the 3rd
One end of drive link 9 is connected, and the other end of the 3rd drive link 9 is connected with one end of the 4th drive link 17, the 4th drive link
17 other end is connected with piston 10.
The operation principle of liquid squash type Pneumatic heating device of the utility model based on multi-level throttle：
Liquid squash type Pneumatic heating device of the utility model based on multi-level throttle makes darrieus formula H by the driving of wind
Type vertical axis windmill 1 rotates, and the kinetic energy kept watch is converted into the mechanical energy of wind energy conversion system, and wind energy conversion system drives vertical axis 2 to rotate, passes through
Rotating reversing arrangement 3 drives feed belt 4 to rotate, and feed belt 4 drives driving disk 5 to rotate, and driving disk 5 is passed by the 3rd
The circular motion of driving disk 5, is converted to work by the piston 10 in lever 9, the 4th drive link 17 connection bi-directional compression cylinder 13
The bilateral reciprocation of plug 10, driving disk 5 drive coaxial eccentric wheel 6 to rotate at the same time, and eccentric wheel 6 drives the first drive link 7
Oscillating motion at an angle is done, the first drive link 7 connection reversing bar 11, drives the second drive link 8 to do by reversing bar 11
Bilateral reciprocation, the second drive link 8 are connected to half sacculus 19 of closing by the 5th drive link 18, drive half sacculus 19 of closing to do
Bilateral reciprocation.As shown in Figure 2 and Figure 4, the second machine is passed through in driving disk 5 filled with heat exchange fluid inside pyrogenicity device 16
When tool transmission device band piston 10 moves right, fluid is extruded, and passes through 13 right side Multi-level throttle valve quilt of multi-stage flow-throttling device
Moved upwards after throttling, oil liquid pressure drastically raises, and at the same time, eccentric wheel 6 passes through the first drive link 7, reversing bar 11, second
Drive link 8, the 5th drive link 18 drive half sacculus 19 of closing to open connector b to left movement, and close connector a, high pressure
Fluid forms the oil in high-speed jet impact pyrogenicity device upper fuel tank via throttle valve, and fluid molecule mutually collides, rubs so that
The kinetic energy of extruding fluid is finally changed into thermal energy, so as to lift oil liquid temperature.Heat is transmitted to cold water by high-temperature oil liquid by conducting heat
Cold water in coil pipe 15, so as to play the purpose of heating.Piston 10 continues to move right, at the same time, closing half sacculus 19 after
Continue to left movement, when half sacculus 19 of closing is moved on the left of connector a, connector a will be opened, and fluid is due to the work of pressure difference
With the leftward space for flowing back to bi-directional compression cylinder 13 by connector a from the top of pyrogenicity device 16.As shown in figure 3, hereafter, piston
10 lateral movements to the left, half sacculus of closing moves to the right closes connector a, and the fluid on the left of piston is compressed to form high pressure,
Move right until closing half sacculus 19 to connector a openings, connector b closings is then multistage on the left of multi-stage flow-throttling device
Restriction sprays heat release.Continuous with wind energy conversion system 1 rotates, and the piston 10 and half sacculus 19 of closing in pyrogenicity device 16 constantly repeat
Above-mentioned action, heat will constantly be transmitted to the cold water in chilled water coil 15, play the purpose of heating.
As shown in figure 5, the thermal insulation material outside pyrogenicity device 16 uses vacuum heat-insulating plate, vacuum heat-insulating plate is a kind of good
Heat-insulating material, its thermal conductivity factor can maintain 0.002-0.004W/ (m K), be only 1/10th of common thermal insulation material.Protecting
Temperature technique has the advantages of insulation layer thickness is thin, small, light-weight when requiring identical, therefore has environmentally friendly and energy-efficient spy
Property, it is current efficient thermal insulation material state-of-the-art in the world, so that ensure that the heat of output can fully be utilized.
In conclusion liquid squash type Pneumatic heating device of the utility model based on multi-level throttle, as a result of up to
In luer H type vertical axis windmills, by vertical axis, rotating circular disc and mechanical linkage drive bi-directional compression cylinder in
Piston motion, threshold wind velocity are lower；Due to using multi-level throttle pore structure, solve before and after single throttle orifice that pressure difference is excessive to ask
Topic, makes heating efficiency higher；Since bi-directional compression cylinder employs vacuum heat-insulating plate as insulating layer, it is excessive to solve heat losses
The problem of, make heat utilization rate more preferable.Liquid squash type Pneumatic heating device of the utility model based on multi-level throttle has knot
Structure is simple, and production cost is low, easy for installation, it is stable the characteristics of.
Claims (7)
1. a kind of liquid squash type Pneumatic heating device based on multi-level throttle, it is characterised in that including wind energy conversion system（1）, it is vertical
Axis（2）, rotate transfer（3）, feed belt（4）, driving disk（5）, eccentric wheel（6）, the first mechanical linkage, second
Mechanical linkage, piston（10）, multi-stage flow-throttling device（12）, bi-directional compression cylinder（13）, chilled water coil（15）, pyrogenicity device
（16）With close half sacculus（19）；The wind energy conversion system（1）It is arranged on vertical axis（2）Top, vertical axis（2）Bottom and rotation
Transfer（3）It is connected, rotates transfer（3）Pass through feed belt（4）It is connected to driving disk（5）；The transmission circle
Disk（5）Pass through concentric shafts and eccentric wheel（6）It is connected, eccentric wheel（6）Pass through the first mechanical linkage and half sacculus of closing
（19）It is connected, closes half sacculus（19）Positioned at multi-stage flow-throttling device（12）On；The driving disk（5）Joined by the second machinery
Dynamic device and piston（10）It is connected, piston（10）Positioned at bi-directional compression cylinder（13）It is interior；The pyrogenicity device（16）It is internal from upper
Chilled water coil is disposed with（15）, multi-stage flow-throttling device（12）, bi-directional compression cylinder（13）；The pyrogenicity device（16）It is interior
Portion is filled with fluid, the multi-stage flow-throttling device（12）By pyrogenicity device（16）Inside is divided into two parts up and down.
2. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
First mechanical linkage includes the first drive link（7）, the second drive link（8）, reversing bar（11）With the 5th drive link（18）；Institute
State eccentric wheel（6）With the first drive link（7）One end be connected, the first drive link（7）The other end and reversing bar（11）One
End is connected, reversing bar（11）The other end and the second drive link（8）One end be connected, the second drive link（8）The other end
With the 5th drive link（18）One end be connected, the 5th drive link（18）The other end with closing half sacculus（19）It is connected.
3. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
Second mechanical linkage includes the 3rd drive link（9）With the 4th drive link（17）；The driving disk（5）With the 3rd drive link
（9）One end be connected, the 3rd drive link（9）The other end and the 4th drive link（17）One end be connected, the 4th drive link
（17）The other end and piston（10）It is connected.
4. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
Multi-stage flow-throttling device（12）Inside it is provided with two multi-level throttle passages, two symmetrical distributions of multi-level throttle passage, Mei Geduo
One connector of level throttling passage（A, b）Positioned at multi-stage flow-throttling device（12）The middle part of top surface, each multi-level throttle passage it is another
One connector is located at multi-stage flow-throttling device（12）The end of bottom surface.
5. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
Pyrogenicity device（16）Outside is provided with insulating layer（14）, insulating layer（14）It is made of vacuum heat build-up material.
6. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
Wind energy conversion system（1）Using darrieus formula H type vertical axis windmills.
7. the liquid squash type Pneumatic heating device according to claim 1 based on multi-level throttle, it is characterised in that described
Fluid uses hydraulic oil or conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441877.3U CN207363819U (en) | 2017-04-25 | 2017-04-25 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441877.3U CN207363819U (en) | 2017-04-25 | 2017-04-25 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363819U true CN207363819U (en) | 2018-05-15 |
Family
ID=62423683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720441877.3U Expired - Fee Related CN207363819U (en) | 2017-04-25 | 2017-04-25 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061150A (en) * | 2017-04-25 | 2017-08-18 | 上海海事大学 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
| CN111189244A (en) * | 2020-01-14 | 2020-05-22 | 安徽理工大学 | Piston type linkage water heat energy conversion device and operation method thereof |
-
2017
- 2017-04-25 CN CN201720441877.3U patent/CN207363819U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061150A (en) * | 2017-04-25 | 2017-08-18 | 上海海事大学 | A kind of liquid squash type Pneumatic heating device based on multi-level throttle |
| CN107061150B (en) * | 2017-04-25 | 2023-11-10 | 上海海事大学 | Liquid extrusion type wind energy heating device based on multistage throttling |
| CN111189244A (en) * | 2020-01-14 | 2020-05-22 | 安徽理工大学 | Piston type linkage water heat energy conversion device and operation method thereof |
| CN111189244B (en) * | 2020-01-14 | 2022-02-08 | 安徽理工大学 | Piston type linkage water heat energy conversion device and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207363819U (en) | A kind of liquid squash type Pneumatic heating device based on multi-level throttle | |
| US20050198960A1 (en) | Thermal conversion device and process | |
| CN103470352A (en) | Recovery device for automobile exhaust waste heat based on Stirling engine | |
| CN201190584Y (en) | Heat-pipe power set | |
| CN103147949A (en) | Thermo-acoustic double-acting oil lubrication power generation system | |
| CN201891443U (en) | Work medium phase change circulation thermal engine | |
| CN201539373U (en) | Geothermal or solar thermoelectric engine device | |
| CN203615646U (en) | Heat-accumulation type ground source heat pump device | |
| CN101968285A (en) | Recuperative double-action first-kind absorption type heat pump | |
| CN104153910A (en) | Opened circulating Stirling engine | |
| CN105971811B (en) | A kind of ocean power generating device and its method of work using parallelogram sturcutre | |
| CN201865786U (en) | Water-jacket type heat-exchanging gas cylinder body for working-fluid phase-changing circular heat engine | |
| CN107061150A (en) | A kind of liquid squash type Pneumatic heating device based on multi-level throttle | |
| CN202792651U (en) | Solar thermal collector plate core | |
| CN208967903U (en) | The single heating heating system of wind power direct-driven formula | |
| CN102213487B (en) | Pneumatic wind-driven heating device based on reverse Stirling cycle | |
| CN103486757B (en) | Branch-cycle first-class absorption type heat pump | |
| CN102425878A (en) | Third type absorption-generation system and regenerative third type absorption heat pump | |
| CN202560492U (en) | Steam power circular-absorption, press, expansion, exhaust driving device | |
| CN202391676U (en) | Water pump driven by solar energy | |
| CN103161712B (en) | A kind of Double-functional thermo-acoustic compressor system | |
| WO2011157058A1 (en) | Electromotive energy circulating type cluster engine | |
| CN207905982U (en) | A kind of luminous energy tide energy integration generating device | |
| CN205823357U (en) | Circulation heat-actuated device in hot pipe type vacuum | |
| CN202914236U (en) | Wave power-generating device capable of changing along wavelength |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20190425 |