CN107455364A - A kind of power plant's coal unloading terminal drives fish device with sound wave - Google Patents
A kind of power plant's coal unloading terminal drives fish device with sound wave Download PDFInfo
- Publication number
- CN107455364A CN107455364A CN201710700553.1A CN201710700553A CN107455364A CN 107455364 A CN107455364 A CN 107455364A CN 201710700553 A CN201710700553 A CN 201710700553A CN 107455364 A CN107455364 A CN 107455364A
- Authority
- CN
- China
- Prior art keywords
- sound wave
- power plant
- fish
- unloading terminal
- coal unloading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 34
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 230000003584 silencer Effects 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 abstract description 5
- 235000015170 shellfish Nutrition 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/60—Fishing; Aquaculture; Aquafarming
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Birds (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Means For Catching Fish (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention belongs to Yu Haiyang to drive fish equipment technical field, and fish device is driven with sound wave more particularly, to a kind of power plant's coal unloading terminal.Described air supply system, control system are separately mounted to one end of coal unloading terminal, and air supply system, control system are driven fish system with sound wave and be connected, and described sound wave drives fish system installed in the bottom of the support column of coal transportation belt lower end between coal unloading terminal and power plant；Described sound wave drives fish system and is made up of Frequency Adjustable high sound intensity acoustical generator, supply connecting tube, travelling-wave tubes, reverberation chamber, exhausting silencer pipeline；The upper end of described Frequency Adjustable high sound intensity acoustical generator is connected with supply connecting tube, and the lower end of Frequency Adjustable high sound intensity acoustical generator is connected by travelling-wave tubes with reverberation chamber, and exhausting silencer pipeline is connected with the right side of reverberation chamber；It drives fish system using sound wave can carry out wideband regulation, have the big feature of acoustical power, underwater sound radiation pressure level can be in more than 150dB, it is possible to achieve a variety of fish, shellfish are targetedly driven away, reduce the risk of power plant's operation.
Description
Technical field
The invention belongs to Yu Haiyang to drive fish equipment technical field, and driving fish with sound wave more particularly, to a kind of power plant's coal unloading terminal fills
Put.
Background technology
In recent years, the object of maritime search and rescue center rescue is fisherman, fishing boat more than 80%.Power plant to harbour and coal transportation belt this
All security affairs of panel region bear management responsibility.However, fisherman carries out fishing operation in this region, due to its own
The reason for many aspects such as safety prevention measure is not comprehensive, marine weather is changeable, ship condition is simple and crude, inherently safe consciousness is not strong, electricity
Factory can not ensure the safety of this panel region, but power plant can not prevent fisherman from carrying out fishing operation again.Therefore, lured by reasonably driving
Fish mode, allow the fish of this most of panel region activity to be directed to other regions and inhabit, allow fisherman to abandon fishing herein automatically a little, Du
Occur absolutely to fish the security incident triggered by fisherman, it appears very necessary.
The content of the invention
It is reasonable in design, make in view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple in construction
Fish device is driven with convenient power plant's coal unloading terminal sound wave, it drives fish system using sound wave can carry out wideband regulation, have sound work(
The big feature of rate, underwater sound radiation pressure level can be in more than 150dB, it is possible to achieve a variety of fish, shellfish targetedly driven away,
Reduce the risk of power plant's operation.Simultaneity factor is low with a Meteorological, and operation and maintenance cost is low, service life of equipment length
The features such as.
To achieve the above object, the technical solution adopted by the present invention is：It includes air supply system, control system, sound wave and driven
Fish system；Described air supply system, control system are separately mounted to one end of coal unloading terminal, and air supply system, control system are equal
Fish system is driven with sound wave to be connected, described sound wave drives the support that fish system is arranged on coal transportation belt lower end between coal unloading terminal and power plant
The bottom of post；Described sound wave drives fish system by Frequency Adjustable high sound intensity acoustical generator, supply connecting tube, travelling-wave tubes, reverberation chamber, exhaust
Noise elimination pipeline forms；The upper end of described Frequency Adjustable high sound intensity acoustical generator is connected with supply connecting tube, Frequency Adjustable high sound intensity sounding
The lower end of device is connected by travelling-wave tubes with reverberation chamber, and exhausting silencer pipeline is connected with the right side of reverberation chamber；Described reverberation chamber, row
Gas noise elimination pipeline is submerged in b.s.l., and the port of export of exhausting silencer pipeline is exposed more than sea level.
Preferably, the optimal size ratio of described reverberation chamber is 1：10.5：13.7；And bottom and the Hai Ping of reverberation chamber
3-4m distance is kept between face.
Preferably, described control system by main control PLC, perform single-chip microcomputer, power amplifier and form, main control PLC with
Single-chip microcomputer connection is performed, single-chip microcomputer is performed and is connected with two groups of power amplifiers, power amplifier is loud with several Frequency Adjustables respectively
Strong acoustical generator connection.
Preferably, described air supply system is made up of air compressor machine, air accumulator, stop valve, magnetic valve, pressure switch, and
Air supply system is connected by stop valve with supply connecting tube.
After said structure, the present invention has the beneficial effect that：A kind of power plant's coal unloading terminal of the present invention is driven with sound wave
Fish device, it drives fish system using sound wave can carry out wideband regulation, have a big feature of acoustical power, and underwater sound radiation pressure level can be
More than 150dB, it is possible to achieve targetedly driven away to a variety of fish, shellfish, reduce the risk of power plant's operation.It is simultaneously
System has a features such as Meteorological is low, and operation and maintenance cost is low, and service life of equipment is long.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
The sound wave that Fig. 2 is the present invention drives the structural representation of fish system 6.
Fig. 3 is the structural representation of control system 5 of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is further illustrated.
Referring to as shown in Figure 1-Figure 3, present embodiment adopts the following technical scheme that：It includes air supply system 4, control
System 5, sound wave drive fish system 6；Described air supply system 4, control system 5 are separately mounted to one end of coal unloading terminal 3, and source of the gas
System 4, control system 5 are driven fish system 6 with sound wave and are connected, and described sound wave drives fish system 6 and is arranged on coal unloading terminal 3 and power plant
Between the lower end of coal transportation belt 1 support column 2 bottom；Described sound wave drives fish system 6 by Frequency Adjustable high sound intensity acoustical generator 7, supply
Connecting tube 8, travelling-wave tubes 9, reverberation chamber 10, exhausting silencer pipeline 11 form；The upper end of described Frequency Adjustable high sound intensity acoustical generator 7 connects
Supply connecting tube 8 is connected to, the lower end of Frequency Adjustable high sound intensity acoustical generator 7 is connected by travelling-wave tubes 9 with reverberation chamber 10, reverberation chamber 10
Right side is connected with exhausting silencer pipeline 11；Described reverberation chamber 10, exhausting silencer pipeline 11 are submerged in b.s.l., and arrange
The port of export of gas noise elimination pipeline 11 is exposed more than sea level.
Further：Frequency Adjustable high sound intensity acoustical generator 7 is mainly made up of magnet steel, driving coil, sound ring assemblies, loudspeaker etc..
Air-flow reaches the working cell being made up of sound ring assemblies after filtering during work, and control system passes through specific to driving coil
Electric signal, the regular motion of moving-coil is controlled, change the gap between moving-coil and quiet circle, so as to the air-flow cut through, produced
The adjustable sound wave of wideband, most propagate and radiate through travelling-wave tubes afterwards.
Further：Travelling-wave tubes 9 is a kind of prismatic acoustic waveguide tube, and its effect is the sound wave for sending acoustical generator in pipe
Produce traveling wave and incoming reverberation chamber.
Further：The cut-off frequency of travelling-wave tubes 9：The highest frequency of traveling wave can be transmitted in pipe, less than in the frequency tube for row
Ripple, higher than being oscillatory extinction in the frequency tube.
Design parameter：Cut-off frequency 1000Hz；Circular pipe, internal diameter 199mm.
Further：Reverberation chamber 10 is the space that a kind of inner surface is sclerine, and sound field is the superposition of reflection sound field.
Main function：
（1）The sound wave that travelling-wave tubes is sent is overlapped.
（2）By the stiff dough of impedance matching, by the sound wave Net long wave radiation in air into seawater.
Four walls of reverberation chamber 10 select 20mm steel plates, to ensure that its face impedance is identical with seawater, the profile chi of reverberation chamber
Very little is 500mm*630mm*793.7mm（The optimal size ratio of reverberation chamber is 1:21/2:41/3）.
Preferably, described control system 5 is made up of main control PLC 12, execution single-chip microcomputer 13, power amplifier 14, it is main
Control PLC12 is connected with performing single-chip microcomputer 13, is performed single-chip microcomputer 13 and is connected with two groups of power amplifiers 14, power amplifier 14 is distinguished
It is connected with several Frequency Adjustable high sound intensity acoustical generators 7.
Further：The control system of control system 5 system is made up of on-site control and long-range host computer.On-site control uses
Touch-screen coordinates PLC to be controlled, using two kinds of control modes of manual unit and automatic cycle, and it is the judgement that satisfies the requirements, chain
Interlock function, the setting of the operations such as frequency setting, time setting can be easily realized very much by man-machine interface.According to live actual
Service condition we using the switch board of the using and the reserved four-way, switch board realizes coordinated signals during operation, is installed in cabinet
Have 2 be used for amplify be output to the power amplifier of generator signal, wherein 1 normal operation, as the power currently run is put
Big device breaks down, and the failure detector circuit of control system can at once detect and switch a signal into standby power amplifier
On, so as to ensure the safety and stability of system operation, fully improve the reliability of complete equipment.
Remote control host computer has remote-monitoring function, in addition to it can be achieved to the complete monitoring of control system on the spot, also
Configuring internet plug receptacle, Wide Area Network is can access, is controlled by internet.Can be achieved to equipment carry out in real time monitoring,
Judge the functions such as equipment error.
Preferably, described air supply system 4 is made up of air compressor machine, air accumulator, stop valve, magnetic valve, pressure switch, and
Air supply system 4 is connected by stop valve with supply connecting tube 8.
Present embodiment has the beneficial effect that：It drives fish system using sound wave can carry out wideband regulation, have sound work(
The big feature of rate, underwater sound radiation pressure level can be in more than 150dB, it is possible to achieve a variety of fish, shellfish targetedly driven away,
Reduce the risk of power plant's operation.Simultaneity factor is low with a Meteorological, and operation and maintenance cost is low, service life of equipment length
The features such as.
It is described above, it is merely illustrative of the technical solution of the present invention and unrestricted, those of ordinary skill in the art are to this hair
The other modifications or equivalent substitution that bright technical scheme is made, without departing from the spirit and scope of technical solution of the present invention,
It all should cover among scope of the presently claimed invention.
Claims (4)
1. a kind of power plant's coal unloading terminal drives fish device with sound wave, it is characterised in that：It includes air supply system (4), control system
(5), sound wave drives fish system (6)；Described air supply system (4), control system (5) are separately mounted to one end of coal unloading terminal (3),
And air supply system (4), control system (5) are driven fish system (6) with sound wave and be connected, described sound wave drives fish system (6) and is arranged on
The bottom of coal unloading terminal (3) support column (2) of coal transportation belt (1) lower end between power plant；Described sound wave drives fish system (6) by can
Frequency modulation high sound intensity acoustical generator (7), supply connecting tube (8), travelling-wave tubes (9), reverberation chamber (10), exhausting silencer pipeline (11) composition；
The upper end of described Frequency Adjustable high sound intensity acoustical generator (7) is connected with supply connecting tube (8), and Frequency Adjustable high sound intensity acoustical generator is (under 7
End is connected by travelling-wave tubes (9) with reverberation chamber (10), and exhausting silencer pipeline (11) is connected with the right side of reverberation chamber (10)；Described
Reverberation chamber (10), exhausting silencer pipeline (11) are submerged in b.s.l., and the port of export of exhausting silencer pipeline (11) is exposed
More than sea level.
2. a kind of power plant's coal unloading terminal according to claim 1 drives fish device with sound wave, it is characterised in that：Described reverberation
The optimal size ratio of room (10) is 1：10.5：13.7；And between the bottom and sea level of reverberation chamber (10) keep 3-4m away from
From.
3. a kind of power plant's coal unloading terminal according to claim 1 drives fish device with sound wave, it is characterised in that：Described control
System (5) is made up of main control PLC (12), execution single-chip microcomputer (13), power amplifier (14), and main control PLC (12) is with performing monolithic
Machine (13) connect, perform single-chip microcomputer (13) be connected with two groups of power amplifiers (14), power amplifier (14) respectively with it is several can
Frequency modulation high sound intensity acoustical generator (7) connects.
4. a kind of power plant's coal unloading terminal according to claim 1 drives fish device with sound wave, it is characterised in that：Described source of the gas
System (4) is made up of air compressor machine, air accumulator, stop valve, magnetic valve, pressure switch, and air supply system (4) passes through stop valve and confession
Gas connecting tube (8) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700553.1A CN107455364B (en) | 2017-08-16 | 2017-08-16 | Sound wave fish-expelling device for coal unloading wharf of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700553.1A CN107455364B (en) | 2017-08-16 | 2017-08-16 | Sound wave fish-expelling device for coal unloading wharf of power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107455364A true CN107455364A (en) | 2017-12-12 |
| CN107455364B CN107455364B (en) | 2021-06-29 |
Family
ID=60549143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700553.1A Active CN107455364B (en) | 2017-08-16 | 2017-08-16 | Sound wave fish-expelling device for coal unloading wharf of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107455364B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331870A (en) * | 2007-06-25 | 2008-12-31 | 中国水产科学研究院渔业机械仪器研究所 | Acousto-optic-electric comprehensive fish driving device |
| NL1034953C1 (en) * | 2008-01-25 | 2009-07-30 | Kema Nederland B V | Acoustic system for scaring away from fish from e.g. cooling water inlet for power station, comprises spark and high voltage pulse generators |
| CN101496506A (en) * | 2009-01-20 | 2009-08-05 | 张磊 | Device for luring and driving fish by sound wave |
| CN101833097A (en) * | 2010-05-19 | 2010-09-15 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN202340695U (en) * | 2011-12-17 | 2012-07-25 | 李元山 | Pneumatic aquatic-animal repelling machine |
| JP2014171411A (en) * | 2013-03-07 | 2014-09-22 | Tokyo Univ Of Marine Science & Technology | Generation method of whale repellent noise in water and generator of whale repellent noise in water |
| CN204014772U (en) * | 2014-08-01 | 2014-12-17 | 天津海友佳音生物科技股份有限公司 | A kind of classification cultivating system that utilizes acousto-optic-electric to drive fish technology |
| CN106864711A (en) * | 2017-03-16 | 2017-06-20 | 四川大学 | Self adaptation sound wave lures the drive dual-purpose submariner device of fish |
| CN106857492A (en) * | 2017-02-22 | 2017-06-20 | 岭东核电有限公司 | A kind of marine growth for nuclear power plant's intake expels system |
-
2017
- 2017-08-16 CN CN201710700553.1A patent/CN107455364B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331870A (en) * | 2007-06-25 | 2008-12-31 | 中国水产科学研究院渔业机械仪器研究所 | Acousto-optic-electric comprehensive fish driving device |
| NL1034953C1 (en) * | 2008-01-25 | 2009-07-30 | Kema Nederland B V | Acoustic system for scaring away from fish from e.g. cooling water inlet for power station, comprises spark and high voltage pulse generators |
| CN101496506A (en) * | 2009-01-20 | 2009-08-05 | 张磊 | Device for luring and driving fish by sound wave |
| CN101833097A (en) * | 2010-05-19 | 2010-09-15 | 华南理工大学 | Underwater net cage multi-beam fish driving monitoring system and method |
| CN202340695U (en) * | 2011-12-17 | 2012-07-25 | 李元山 | Pneumatic aquatic-animal repelling machine |
| JP2014171411A (en) * | 2013-03-07 | 2014-09-22 | Tokyo Univ Of Marine Science & Technology | Generation method of whale repellent noise in water and generator of whale repellent noise in water |
| CN204014772U (en) * | 2014-08-01 | 2014-12-17 | 天津海友佳音生物科技股份有限公司 | A kind of classification cultivating system that utilizes acousto-optic-electric to drive fish technology |
| CN106857492A (en) * | 2017-02-22 | 2017-06-20 | 岭东核电有限公司 | A kind of marine growth for nuclear power plant's intake expels system |
| CN106864711A (en) * | 2017-03-16 | 2017-06-20 | 四川大学 | Self adaptation sound wave lures the drive dual-purpose submariner device of fish |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107455364B (en) | 2021-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104145939B (en) | Construction marine site Indo-Pacific Humpback Dolphins acoustics drives guard method | |
| CN204919658U (en) | Water pipe nets control system | |
| CN101833097B (en) | Underwater net cage multi-beam fish driving monitoring system and method | |
| CN101503221A (en) | Apparatus with sea marine organism pollution preventing function | |
| CN103027029A (en) | Multifunctional bird dispeller | |
| CN203015727U (en) | Ultrasonic voice bird repelling device | |
| CN110512604A (en) | Conical Shells With air curtain underwater pile driving denoising device is truncated in array | |
| WO2013055207A1 (en) | A system and method for predicting,monitoring, preventing and controlling algae in open water | |
| CN103551335B (en) | Ultrasonic cleaning maintaining device for underwater construction with variable radiant surface | |
| CN206320770U (en) | A kind of intelligent multichannel sound wave soot blowing system | |
| CN107455364A (en) | A kind of power plant's coal unloading terminal drives fish device with sound wave | |
| CN204059567U (en) | A kind of energy-conservation prefabricated pumping plant | |
| CN102006531A (en) | Sound box structure | |
| CN104801513B (en) | Liquid whistle jet is worked in coordination with ultrasonic underwater structure and is cleaned device and method of work thereof | |
| CN107376154A (en) | Electroacoustic transduction fire extinguisher | |
| CN102681493A (en) | Water supply and drainage monitoring system | |
| CN106857492A (en) | A kind of marine growth for nuclear power plant's intake expels system | |
| CN108279579A (en) | A kind of Large Underwater platform noise reduction system with class cochlear structures | |
| CN208021672U (en) | A kind of naval vessel sea water tank protective device | |
| JP7421519B2 (en) | Underwater sound generation system and method for mitigating the impact of underwater work noise on fish | |
| CN210270629U (en) | Automatic water injection system of water works water filtering pond | |
| CN202280113U (en) | Novel variable-frequency constant-pressure water supply system | |
| CN103198590A (en) | Remote orientation high-intensity acoustic warning system with adjustable directions | |
| CN207216845U (en) | A kind of water immersion detecting device for kitchen and bath | |
| CN107566957A (en) | A kind of waterproof speaker |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200508 Address after: 226200 Qin Tan, Qidong, Jiangsu, Nantong Applicant after: Jiangsu Datang International lvsigang Power Generation Co., Ltd Applicant after: NANJING CHANGRONG ACOUSTIC Inc. Address before: 226200 Qin Tan, Qidong, Jiangsu, Nantong Applicant before: Jiangsu Datang International lvsigang Power Generation Co., Ltd |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |