CN110671284A - Heat dissipation device for engine room cover of wind turbine generator - Google Patents
Heat dissipation device for engine room cover of wind turbine generator Download PDFInfo
- Publication number
- CN110671284A CN110671284A CN201910979439.6A CN201910979439A CN110671284A CN 110671284 A CN110671284 A CN 110671284A CN 201910979439 A CN201910979439 A CN 201910979439A CN 110671284 A CN110671284 A CN 110671284A
- Authority
- CN
- China
- Prior art keywords
- pipe
- cooling tank
- wind turbine
- turbine generator
- air
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/80—Arrangement of components within nacelles or towers
- F03D80/88—Arrangement of components within nacelles or towers of mechanical components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a heat dissipation device for a cabin cover of a wind turbine generator, which comprises a cooling tank and a pushing device, wherein the cooling tank is arranged on the top of the cabin cover; a liquid storage pipe is arranged on the cooling tank, and a condenser is sleeved on the liquid storage pipe; a coiled pipe is arranged in the cooling tank, a water inlet of the coiled pipe is connected with a liquid outlet of the liquid storage pipe through a guide pipe, and a water outlet of the coiled pipe is connected with a liquid return port of the liquid storage pipe through a guide pipe; one end of the cooling tank is provided with an air inlet, the air inlet is connected with a filter, the other end of the cooling tank is provided with an air outlet, and the air outlet is connected with a telescopic pipe; the telescopic pipe is connected with the pushing device through an air exhaust cavity opening. The air of the invention is blown in through the nature without an artificial air source, the filter effectively filters dust, particles and the like mixed in the air through a plurality of layers of filter screens, and the activated carbon column can absorb moisture in the air.
Description
Technical Field
The invention relates to a heat dissipation device for a cabin cover of a wind turbine generator, and belongs to the technical field of wind power.
Background
The cabin cover is needed to be used when the wind driven generator is used, the generator is protected by the cabin cover, but the wind driven generator can generate a large amount of heat when being used, if the heat can not be timely dissipated, the normal work of the generator can be influenced, even, production potential safety hazards can exist, and the wind driven generator is not beneficial to production.
At present, the double-fed wind generating set with more operation generally comprises mechanical parts such as a main shaft, a gear box and a generator which run for a long time, and although a heat exchanger is generally arranged in the engine room cover, when the environmental temperature is higher, the mechanical parts in the engine room cover run continuously, and the top of the engine room cover of the original traditional design only has a gear box exhaust cover, the area is smaller, so that the heat insulation and heat dissipation effects of the engine room cover are limited, the internal temperature of the housing is higher, and potential safety hazards exist.
Disclosure of Invention
In order to solve the technical problem, the invention provides a heat dissipation device for a cabin cover of a wind turbine generator.
The invention is realized by the following technical scheme.
The invention provides a heat dissipation device for a cabin cover of a wind turbine generator, which comprises a cooling tank and a pushing device, wherein the cooling tank is arranged on the top of the cabin cover; a liquid storage pipe is arranged on the cooling tank, and a condenser is sleeved on the liquid storage pipe; a coiled pipe is arranged in the cooling tank, a water inlet of the coiled pipe is connected with a liquid outlet of the liquid storage pipe through a guide pipe, and a water outlet of the coiled pipe is connected with a liquid return port of the liquid storage pipe through a guide pipe; one end of the cooling tank is provided with an air inlet, the air inlet is connected with a filter, the other end of the cooling tank is provided with an air outlet, and the air outlet is connected with a telescopic pipe; the telescopic pipe is connected with the pushing device through an air exhaust cavity opening.
The cooling tank is characterized by further comprising a mounting plate, and the mounting plate is fixedly connected with the cooling tank through a vertically arranged support.
The mounting plate is provided with a plurality of mounting holes, and a rubber pad is fixedly adhered to the upper end face of the mounting plate.
The liquid storage pipe is transversely and fixedly arranged on the cooling tank.
The liquid storage pipe is internally stored with cooling liquid and is provided with a submersible pump for circulating flow of the cooling liquid.
The filter comprises an air inlet pipe, wherein one end of the air inlet pipe is provided with a plurality of through cavities which are uniformly distributed, and each through cavity is internally provided with a filter screen and an activated carbon column; and a plurality of reinforcing ribs which are axially arranged are arranged on the outer wall of the air inlet pipe.
The air inlet pipe is fixedly connected with an air inlet of the cooling tank.
A plurality of connecting rods which are uniformly distributed are arranged on the air exhaust cavity opening, and a hinged seat is arranged at one end of the air exhaust cavity opening; the connecting rod is fixedly connected with the lower end face of the mounting plate.
The pushing device comprises a motor box fixed on the lower end face of the mounting plate, a driving motor is arranged in the motor box, and the output end of the driving motor is connected with an eccentric wheel; the eccentric wheel is provided with a guide post at the position deviating from the rotating center, and the guide post is hinged with the hinge base through a rotating rod.
And a sealing ring is arranged at the joint of each pipeline.
The invention has the beneficial effects that:
1. wind blows in through nature without artificial wind source, the filter effectively filters dust, particles and the like mixed in the wind through a plurality of layers of filter screens, and the activated carbon column can absorb moisture in the wind;
2. the cooling liquid in the liquid storage pipe flows into the coiled pipe through the submersible pump, so that the wind flowing into the cooling tank absorbs heat to reduce the temperature of the wind, the cooled wind is blown out through the air exhaust cavity opening, and the surfaces of elements in the cabin cover of the wind turbine generator are blown, so that the flowability of the air in the wind turbine generator is improved;
3. the driving motor enables the eccentric wheel to rotate, the rotating rod enables the air exhaust cavity to reciprocate in a reciprocating mode to swing, the diffusivity and the heat dissipation range of cold air exhausted from the air exhaust cavity are improved, the increase of the cold air in the wind turbine generator cabin cover enables air flow in the wind turbine generator cabin cover to be discharged outside through the heat dissipation holes in the wind turbine generator cabin cover, and the emission of hot air in the wind turbine generator cabin cover is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the filter of FIG. 1;
in the figure: 1-mounting plate, 2-cooling tank, 3-liquid storage pipe, 4-condenser, 5-coiled pipe, 6-filter, 601-air inlet pipe, 602-through cavity, 603-filter screen, 604-reinforcing rib, 7-telescopic pipe, 8-air exhaust cavity opening, 9-connecting rod, 10-hinge base, 11-motor box, 12-eccentric wheel and 13-rotating rod.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, the heat dissipation device for the nacelle cover of the wind turbine generator comprises a cooling tank 2 and a pushing device; a liquid storage pipe 3 is arranged on the cooling tank 2, and a condenser 4 is sleeved on the liquid storage pipe 3; a coiled pipe 5 is arranged in the cooling tank 2, a water inlet of the coiled pipe 5 is connected with a liquid outlet of the liquid storage pipe 3 through a guide pipe, and a water outlet of the coiled pipe 5 is connected with a liquid return port of the liquid storage pipe 3 through a guide pipe; one end of the cooling tank 2 is provided with an air inlet, the air inlet is connected with a filter 6, the other end of the cooling tank is provided with an air outlet, and the air outlet is connected with a telescopic pipe 7; the telescopic pipe 7 is connected with the pushing device through an exhaust cavity opening 8.
Still include mounting panel 1, mounting panel 1 is through the support and the cooling tank 2 fixed connection of perpendicular setting.
Be equipped with a plurality of mounting hole on the mounting panel 1, and fixed the having pasted the rubber pad at the up end of mounting panel 1.
The liquid storage pipe 3 is transversely and fixedly arranged on the cooling tank 2.
The liquid storage pipe 3 is internally stored with cooling liquid and is provided with a submersible pump for circulating flow of the cooling liquid.
As shown in fig. 2, the filter 6 includes an air inlet pipe 601, one end of the air inlet pipe 601 is provided with a plurality of through cavities 602 which are uniformly distributed, and a filter screen 603 and an activated carbon column are installed in each through cavity 602; the outer wall of the air inlet pipe 601 is provided with a plurality of reinforcing ribs 604 which are axially arranged.
The air inlet pipe 601 is fixedly connected with an air inlet of the cooling tank 2.
A plurality of uniformly distributed connecting rods 9 are arranged on the air exhaust cavity opening 8, and a hinged seat 10 is arranged at one end of the air exhaust cavity opening 8; the connecting rod 9 is fixedly connected with the lower end face of the mounting plate 1.
The pushing device comprises a motor box 11 fixed on the lower end face of the mounting plate 1, a driving motor is arranged in the motor box 11, and the output end of the driving motor is connected with an eccentric wheel 12; the eccentric wheel 12 is provided with a guide post at the position deviating from the rotation center, and the guide post is hinged with the hinge base 10 through a rotating rod 13.
Furthermore, the connecting part of each pipeline is provided with a sealing ring, so that the sealing performance of the device is improved, and the phenomenon that other elements inside the cabin cover of the wind turbine generator are polluted or damaged due to outflow of cooling liquid is avoided.
Examples
As mentioned above, this device is through with mounting panel 1 fixed mounting at the interior roof of wind turbine generator system cabin cover, then offers the logical chamber that is used for fixed mounting filter 6 at the preceding terminal surface of wind turbine generator system cabin cover to lead to the gap between the chamber to filter 6 and wind turbine generator system cabin cover and seal, thereby accomplish the installation.
Preferably, the lower surface of the mounting plate 1 is fixedly provided with a cooling tank 2 through a vertically arranged bracket, the upper surface of the cooling tank 2 is fixedly provided with a liquid storage pipe 3 which is transversely arranged, cooling liquid is stored in the liquid storage pipe 3 and a submersible pump (the cooling liquid in the invention adopts deoxygenated water) for circulating flow of the cooling liquid is arranged, the liquid storage pipe 3 is fixedly sleeved with a condenser 4 for cooling the cooling liquid stored in the liquid storage pipe 3, and the condenser 4 is electrically connected with an external power supply; and secondly, a coiled pipe 5 is fixedly arranged in the cooling tank 2, a water inlet of the coiled pipe 5 is fixedly connected with a liquid outlet of the liquid storage pipe 3 through a guide pipe, and a water outlet of the coiled pipe 5 is fixedly connected with a liquid return port of the liquid storage pipe 3 through a guide pipe.
Furthermore, one end of the cooling tank 2 is provided with an air inlet which is fixedly connected with the connecting end of the filter 6, as shown in fig. 1, the filter 6 is composed of an air inlet pipe 601, a through cavity 602, a filter screen 603 and a reinforcing rib 604, wherein a plurality of through cavities 602 are uniformly distributed on the air inlet pipe 601, each through cavity is internally provided with the filter screen and an activated carbon column, a plurality of reinforcing ribs 604 arranged axially are fixedly arranged on the outer side wall of the air inlet pipe 601, and the link of air-supply line 601 and the air intake fixed connection of condenser 4, the air outlet has been seted up to the other end of cooling tank 2, and the air outlet is fixed connection with the one end of flexible pipe 7, and the other end of flexible pipe 7 and the interface fixed connection of the chamber mouth 8 of airing exhaust, the connecting rod 9 of rotation connection is all installed to the both sides wall of the chamber mouth 8 of airing exhaust, and the other end of two connecting rods 9 all is connected with the lower fixed surface of mounting panel 1.
Specifically, when wind on the wind-powered electricity generation field blows to the wind motor, because the preceding terminal surface of wind turbine generator system cabin cover is in the place ahead of blade, thereby part wind blows in filter 6, and filter 6 is through the effectual dust that mix with in the wind of multilayer filter screen 603, filter such as particle, and the moisture in the wind can be absorbed to the active carbon post, simultaneously can effectual reduction wind speed through multilayer filter screen 603 and active carbon post, the wind speed of avoiding flowing into in the equipment leads to the fact the damage to equipment at the excessive speed, the wind after the filtration process is poured into cooling tank 2, thereby the wind regime of needs is through ingesting from the nature, need not artifical wind regime.
Specifically, the cooling liquid in the liquid storage pipe 3 flows into the coiled pipe 5 by starting the submersible pump, so that the air flowing into the cooling tank 2 absorbs heat to reduce the temperature of the air, the cooled air is blown out through the air exhaust cavity opening 8, the surfaces of elements inside the cabin cover of the wind turbine generator are blown, and the flowability of the air inside the cabin cover and the cooling of the air are improved.
Preferably, the mounting plate 1 is provided with a pushing device for adjusting the wind direction of the air exhaust cavity opening 8, the pushing device is composed of a hinge base 10, a motor box 11, an eccentric wheel 12, a rotating rod 13 and a driving motor, the motor box 11 is fixedly mounted on the lower surface of the mounting plate 1, the driving motor is fixedly mounted in the motor box 11 (the driving motor adopts a Y80M1-2 model, a motor running circuit is a conventional circuit), the output end of the driving motor extends out of the motor box 11 and is fixedly connected with the rotating center of the eccentric wheel 12, a guide post is fixedly mounted at the position of the eccentric wheel 12 deviating from the rotating center and is rotatably connected with one end of the rotating rod 13, the other end of the rotating rod 13 is hinged with the hinge base 10, and the hinge base 10 is fixedly mounted at the.
Specifically, make eccentric wheel 12 rotate through opening driving motor to dwang 13 makes a round trip to reciprocate pulling air exhaust accent 8 and swings, has improved the diffusivity and the heat dissipation scope of the cold wind of air exhaust accent 8 exhaust, and the increase of the inside cold wind of wind turbine generator unit cabin cover makes the inside air current of wind turbine generator unit cabin cover arrange outside through the louvre that wind turbine generator unit cabin covers, has improved the emission of the interior steam of wind turbine generator unit cabin cover.
Claims (10)
1. The utility model provides a wind turbine generator system cabin cover heat abstractor, includes cooling tank (2) and thrust unit, its characterized in that: a liquid storage pipe (3) is arranged on the cooling tank (2), and a condenser (4) is sleeved on the liquid storage pipe (3); a coiled pipe (5) is arranged in the cooling tank (2), a water inlet of the coiled pipe (5) is connected with a liquid outlet of the liquid storage pipe (3) through a guide pipe, and a water outlet of the coiled pipe (5) is connected with a liquid return port of the liquid storage pipe (3) through a guide pipe; one end of the cooling tank (2) is provided with an air inlet which is connected with a filter (6), the other end of the cooling tank is provided with an air outlet which is connected with a telescopic pipe (7); the telescopic pipe (7) is connected with the pushing device through an exhaust cavity opening (8).
2. The wind turbine generator nacelle cover heat sink of claim 1, wherein: the cooling device is characterized by further comprising a mounting plate (1), wherein the mounting plate (1) is fixedly connected with the cooling tank (2) through a vertically arranged support.
3. The wind turbine generator nacelle cover heat sink of claim 2, wherein: the mounting plate (1) is provided with a plurality of mounting holes, and a rubber pad is fixedly adhered to the upper end face of the mounting plate (1).
4. The wind turbine generator nacelle cover heat sink of claim 1, wherein: the liquid storage pipe (3) is transversely and fixedly arranged on the cooling tank (2).
5. The wind turbine generator nacelle cover heat sink of claim 1, wherein: the liquid storage pipe (3) is internally stored with cooling liquid and is provided with a submersible pump for circulating flow of the cooling liquid.
6. The wind turbine generator nacelle cover heat sink of claim 1, wherein: the filter (6) comprises an air inlet pipe (601), one end of the air inlet pipe (601) is provided with a plurality of through cavities (602) which are uniformly distributed, and a filter screen (603) and an activated carbon column are arranged in each through cavity (602); the outer wall of the air inlet pipe (601) is provided with a plurality of reinforcing ribs (604) which are axially arranged.
7. The wind turbine generator nacelle cover heat sink of claim 6, wherein: the air inlet pipe (601) is fixedly connected with an air inlet of the cooling tank (2).
8. The wind turbine generator nacelle cover heat sink of claim 1, wherein: a plurality of uniformly distributed connecting rods (9) are arranged on the air exhaust cavity opening (8), and a hinged seat (10) is arranged at one end of the air exhaust cavity opening (8); the connecting rod (9) is fixedly connected with the lower end face of the mounting plate (1).
9. The wind turbine generator nacelle cover heat sink of claim 1, wherein: the pushing device comprises a motor box (11) fixed on the lower end face of the mounting plate (1), a driving motor is arranged in the motor box (11), and the output end of the driving motor is connected with an eccentric wheel (12); the eccentric wheel (12) is provided with a guide post at the position deviating from the rotating center, and the guide post is hinged with the hinge base (10) through a rotating rod (13).
10. The heat dissipation device for the nacelle cover of the wind turbine generator as claimed in any one of claims 1 to 10, wherein: and a sealing ring is arranged at the joint of each pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979439.6A CN110671284A (en) | 2019-10-15 | 2019-10-15 | Heat dissipation device for engine room cover of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979439.6A CN110671284A (en) | 2019-10-15 | 2019-10-15 | Heat dissipation device for engine room cover of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671284A true CN110671284A (en) | 2020-01-10 |
Family
ID=69082490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910979439.6A Pending CN110671284A (en) | 2019-10-15 | 2019-10-15 | Heat dissipation device for engine room cover of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260846A (en) * | 2018-09-12 | 2019-01-25 | 赵洁 | A kind of energy conservation and environmental protection cooling system |
-
2019
- 2019-10-15 CN CN201910979439.6A patent/CN110671284A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109260846A (en) * | 2018-09-12 | 2019-01-25 | 赵洁 | A kind of energy conservation and environmental protection cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201326522Y (en) | Engine room cooling system of wind generating set | |
| CN210164583U (en) | Heat recovery type cooling system of wind generating set | |
| CN107508422B (en) | External circulation cooling automobile permanent magnet synchronous motor | |
| CN209604190U (en) | A kind of high efficiency long service power generator based on new energy environment protection field | |
| CN212012153U (en) | Low-voltage reactive compensation control box | |
| CN110671284A (en) | Heat dissipation device for engine room cover of wind turbine generator | |
| CN213419273U (en) | Cooling and heat dissipating device for wind generating set | |
| CN109980853A (en) | A kind of ventilated machine of new-energy automobile | |
| CN211058958U (en) | Heat dissipation device for engine room cover of wind turbine generator | |
| CN206770135U (en) | A kind of wind power generating set Multifunction ventilated conversion equipment | |
| CN211321135U (en) | Generator structure of railway vehicle | |
| CN117005991A (en) | Large wind generating set and working method thereof | |
| CN208730742U (en) | A kind of new-energy automobile air duct cooling device | |
| CN206785568U (en) | A kind of wind-driven generator water cooling plant | |
| CN215221908U (en) | Generator set protection system for hydroelectric power generation | |
| CN214626631U (en) | Internal heat radiation structure of micro turbine generator | |
| CN112879246B (en) | Engine room cover of wind driven generator | |
| CN209150568U (en) | A kind of thermal power plant frequency converter switchgear house ventilation cooling structure | |
| CN203151313U (en) | Permanent magnetic direct drive aerogenerator with water cooling device | |
| CN208963326U (en) | A kind of interior cooling back installation of plant protection drone | |
| CN206770145U (en) | A kind of photovoltaic water-raising system | |
| CN207229387U (en) | A kind of high reliability cable processing blast apparatus | |
| CN215860628U (en) | Cooling device for wind driven generator | |
| CN205930237U (en) | Energy -conserving high -efficient multi -functional auto radiator | |
| CN220173686U (en) | Novel power station energy-saving device |
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 |