CN103836617B - A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas - Google Patents
A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas Download PDFInfo
- Publication number
- CN103836617B CN103836617B CN201410073561.4A CN201410073561A CN103836617B CN 103836617 B CN103836617 B CN 103836617B CN 201410073561 A CN201410073561 A CN 201410073561A CN 103836617 B CN103836617 B CN 103836617B
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- separator
- exhaust gas
- boiler
- cyclone separator
- 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
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
With a Horizontal CFB Boiler for Cyclone Separator with Downward Exhaust Gas, belong to the combustion apparatus of the inferior fuels such as colm, solid waste, mud or living beings. It is made up of main combustion chamber, subsidiary combustion chamber, secondary furnace and back-end ductwork, and back-end ductwork top is furnished with Cyclone Separator with Downward Exhaust Gas. The present invention has changed single-stage, the vertical circulation structure of vertical circulation fluid bed, can effectively reduce boiler height, has loosened the requirement to boiler room construction height; Be furnished with Cyclone Separator with Downward Exhaust Gas on back-end ductwork top, make structure compacter simultaneously; Be conducive to the miniaturization of circulating bed boiler, can effectively reduce costs. This boiler has advantages of that burning in circulating fluid bed boiler has, the fuel such as burning colm, solid waste, city and industrial sludge and living beings, and fuel tolerance is wide, is a kind of combustion cleaning, compact conformation, durable lasting efficient burning equipment.
Description
Technical field
The present invention relates to a kind of CFBC equipment, relate in particular to a kind of horizontal circulation with Cyclone Separator with Downward Exhaust GasFluidized bed combustion equipment, the burning that belongs to the inferior fuels such as colm, solid waste, city and industrial sludge, living beings is establishedStandby, the ash content of fuel is had to adaptability widely.
Background technology
At present, the main combustion apparatus of the inferior fuel such as colm, solid waste, mud, living beings is chain furnace, water-cooledVibrating grate boiler and CFBB etc., select the different type of furnaces according to different fuel, and the different type of furnaces have separatelyFeature.
CFBB is the solid fuel heat energy utilization equipment of the high-efficiency cleaning that gets up of development in recent years, and fuel tolerance is wide,The fuel such as burning fat coal, colm, solid waste, living beings. Because its efficiency of combustion is high, can carry out in stove simultaneouslyDesulphurization and denitrations etc. pollute control operation, have the advantage such as low NOx and SOx discharge, thereby have obtained at electricity market at presentDevelopment rapidly, to maximization future development, 600,000 ten million CFBB is already at the beginning of 2013 in the worldPut into commercial operation. In power industry, the use of the fuel such as colm, solid waste, living beings easily causes generating accident,Thereby using of these fuel has been subject to a certain degree restriction. Compared with thermal power generation, in Industrial Boiler field, due to industry potThe evaporation capacity of stove is little, flexible operation, maintenance are convenient, thus colm, solid waste, living beings etc. are low-grade, low price,The fuel of high performance-price ratio is favored day by day. There is stove in traditional vertical, single-stage circulation fluidized-bed combustion boiler for thermal power generation fieldHeight, the shortcoming such as boiler island is bulky, has relatively high expectations to workshop building. The supporting steel frame of boiler island and boiler island are originally simultaneouslyThe steel consumption of body is larger, makes Project Cost and initial cost higher. The lacking in Industrial Boiler field for vertical circulation fluidized-bed combustion boilerFall into, Chinese patent CN200510126362.6 has announced a kind of Horizontal type circulating fluid bed combustion apparatus and circulating combustion method thereof, adoptsWith external vertical cyclone separator, the burner hearth of traditional vertical boiler is divided into main combustion chamber, subsidiary combustion chamber and three parts of secondary furnace, fromAnd effectively reduce furnace height. But the cyclone separator that this technology adopts is arranged between back-end ductwork and secondary furnace, causes potThe span of stove is larger, and structure is still compact not. Chinese patent CN201210014929.0 has announced a kind of with horizontal cyclonic separationThe Horizontal CFB Boiler of device, in secondary furnace, integrated layout horizontal cyclone separator, makes structure compacter, is conducive toThe miniaturization of circulating bed boiler, can effectively reduce boiler construction cost. But separator level is arranged, centrifugal inertial force and gravity workUse phase mutual interference, separative efficiency is on the low side, to good not containing the universality of ash content in grey fuel.
Summary of the invention
The deficiency and the defect that exist for prior art, the present invention proposes a kind of horizontal circular flow with Cyclone Separator with Downward Exhaust GasFluidized bed boiler, had both realized the compact Layout of structure, had realized again the efficient separation of material, make the efficiency of combustion of this boiler high,Fuel tolerance is strong.
The present invention is achieved by the following technical solutions:
With a Horizontal CFB Boiler for Cyclone Separator with Downward Exhaust Gas, it comprises by main combustion chamber emulsion zone and main combustion chamber rareMain combustion chamber, subsidiary combustion chamber, secondary furnace and the back-end ductwork of phase region composition, be furnished with exhanst gas outlet on secondary furnace top, at afterbody cigaretteIn road, be furnished with economizer and air preheater, according to the corrosion resistance exhaust gas temperature of back-end surfaces be controlled at 120～180 DEG C; There is air distribution plate in main combustion chamber lower disposed; Between main combustion chamber and subsidiary combustion chamber, be furnished with the first water-cooling wall partition wall, fire in pairBetween chamber and secondary furnace, be furnished with the second water-cooling wall partition wall; V-arrangement ash bucket is formed on subsidiary combustion chamber and secondary furnace bottom, at the bottom of V-arrangement ash bucketPortion is furnished with material returning device, and material returning device is connected with main burning returning charge mouth, it is characterized in that: be furnished with 1～2 on back-end ductwork topCyclone Separator with Downward Exhaust Gas, described each Cyclone Separator with Downward Exhaust Gas by separator inlet passage, Membrane Separator Cylinder for CFB Boiler, upper starting taper,Central tube and lower shoe form; Membrane Separator Cylinder for CFB Boiler is connected with the exhanst gas outlet of secondary furnace by separator inlet passage; On lower shoeBe furnished with circular back-end ductwork smoke inlet, be connected with central tube; Described Cyclone Separator with Downward Exhaust Gas bottom comprises that feed back shrinksSection, feed back standpipe and oblique returning charge passage, oblique returning charge passage is connected with material returning device. The setting of upper starting taper not only has water conservancy diversion and doesWith, and can improve the separative efficiency of separator.
Technical characterictic of the present invention is also: described central tube diameter D2 equates with upper starting taper diameter D1; Upper starting taper cone top partBe 0.10～0.25 apart from the height h2 on edge on separator inlet passage and the ratio of separator inlet channel height h1; Central tubeUpper end is 0.25～0.30 apart from the height h3 on edge under separator inlet passage and the ratio of separator inlet channel height h1; InstituteThe angle β of the lower shoe of stating and horizontal direction is 15～50 °, and the cone angle of the upper starting taper vertex of a cone is 45～60 °, Membrane Separator Cylinder for CFB BoilerCross section be circular or square.
Technical characterictic of the present invention is also: in the time that described layout of boiler has two Cyclone Separator with Downward Exhaust Gas, and two separatorsIntermediate arrangement has separator median septum.
The present invention compared with prior art, has the following advantages and high-lighting effect: 1. cyclone separator of the present invention is arranged in combustionTo the greatest extent after chamber, on back-end ductwork, can make layout of boiler compacter, be beneficial to and reduce cost and further save space. 2. adoptUse lower exhaust mode, the flue gas of separator flows out identical with material flow outgoing direction, is convenient to pipeline and connects and arrange. 3. descend exhaust to revolveThe separative efficiency of wind separator, between traditional vertical cyclone separator and horizontal cyclone separator, is adapted to high-ash fuel,Be applicable to again low ash content fuel. The present invention, owing to adopting Cyclone Separator with Downward Exhaust Gas, has not only inherited the horizontal circular flow of prior artFluidized bed boiler fuel tolerance is wide and efficiency of combustion is high, the advantage of desulfuration in furnace, denitration, and make structural configuration compacter,Further reduce equipment manufacturing cost and improved space availability ratio.
Brief description of the drawings
The make a living structural principle signal of the Horizontal CFB Boiler embodiment with Cyclone Separator with Downward Exhaust Gas of producing steam of Fig. 1Figure.
The make a living structural principle signal of the Horizontal CFB Boiler embodiment with Cyclone Separator with Downward Exhaust Gas of heat production water of Fig. 2Figure.
Fig. 3 is Cyclone Separator with Downward Exhaust Gas arrangement figure.
Fig. 4 is that the A-A of Fig. 1 is to view.
Fig. 5 is that the B-B of Fig. 3 is to view.
Fig. 6 is the top view of arranging a Cyclone Separator with Downward Exhaust Gas.
Fig. 7 is the top view of arranging two Cyclone Separator with Downward Exhaust Gas.
In figure: 1-air distribution plate; 2-main combustion chamber emulsion zone; 3-fuel apparatus for feeding; 4-main combustion chamber dilute-phase zone; 5-the first waterCold wall partition wall; 6-subsidiary combustion chamber; 7-carbonated drink fairlead; 8-drum; 9-saturated vapor fairlead; 10-the second water-cooling wall everyWall; 11-secondary furnace; 12-feed pipe; 13-separator inlet passage; 14-Cyclone Separator with Downward Exhaust Gas; The upper starting taper of 15-;16-Membrane Separator Cylinder for CFB Boiler; 17-central tube; 18-lower shoe; 19-economizer feed-water intake; 20-economizer; 21-airPreheater; 22-exhanst gas outlet; 23-back-end ductwork; 24-feed back standpipe; The oblique returning charge passage of 25-; 26-returning charge mouth;27-material returning device; 28-V shape ash bucket; 29-back-end ductwork smoke inlet; 30-feed back contraction section; 31-hot water outlet; 32-Separator median septum.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention and the course of work are further described.
Fig. 1 is a kind of structural principle schematic diagram of the Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas, it comprise byMain combustion chamber, subsidiary combustion chamber 6, secondary furnace 11 and back-end ductwork 23 that main combustion chamber emulsion zone 2 and main combustion chamber dilute-phase zone 4 form, in combustionThe top of chamber 11 is furnished with exhanst gas outlet to the greatest extent, is furnished with economizer 20 and air preheater 21 in back-end ductwork 23; LeadingCombustion chamber lower disposed has air distribution plate 1; Between main combustion chamber and subsidiary combustion chamber 6, be furnished with the first water-cooling wall partition wall 5, subsidiary combustion chamber 6 HesBetween secondary furnace 11, be furnished with the second water-cooling wall partition wall 10; Subsidiary combustion chamber 6 forms V-arrangement ash bucket 28 with secondary furnace 11 bottoms, at VShape ash bucket 28 bottoms are furnished with material returning device 27, and material returning device 27 is connected with main burning returning charge mouth 26; At back-end ductwork 23 top clothBe equipped with Cyclone Separator with Downward Exhaust Gas 14.
Fig. 2 is a kind of embodiment of the Horizontal type circulating fluid bed hot water boiler with Cyclone Separator with Downward Exhaust Gas. In this embodiment notDrum is set, boiler feedwater flow through province's coal 20, main combustion chamber, subsidiary combustion chamber 6, the rear hot water outlet 31 that directly enters of secondary furnace 11,Hot water is for heating or production.
Fig. 3 is Cyclone Separator with Downward Exhaust Gas arrangement figure, Fig. 4 be Cyclone Separator with Downward Exhaust Gas A-A to view, Fig. 5 for figure3 B-B is to view. Described Cyclone Separator with Downward Exhaust Gas 14 by Membrane Separator Cylinder for CFB Boiler 16, upper starting taper 15, central tube 17 and underBase plate 18 forms; Membrane Separator Cylinder for CFB Boiler 16 is connected with the exhanst gas outlet of secondary furnace 11 by separator inlet passage 13; Lower shoeOn 18, be furnished with circular back-end ductwork smoke inlet 29, be connected with central tube 17; Described Cyclone Separator with Downward Exhaust Gas 14 bottomsBe furnished with feed back contraction section 30, feed back standpipe 24 and oblique returning charge passage 25, oblique returning charge passage 25 is connected with material returning device 27.Described central tube 17 diameter D2 equate with upper starting taper 15 diameter D1; Upper starting taper 15 cone top parts are apart from separator inlet passageOn 13, the ratio of the height h2 on edge and separator inlet passage 13 height h1 is 0.10～0.25; Central tube 17 upper end distances pointBe 0.25～0.30 from the height h3 on 13 times edges of device access road and the ratio of separator inlet passage 13 height h1. Lower shoe18 with the angle β of horizontal direction be 15～50 °, the cone angle of upper starting taper 15 vertex of a cones is 45～60 °, Membrane Separator Cylinder for CFB Boiler 16Cross section be circular or square.
Fig. 6 is the top view of arranging a Cyclone Separator with Downward Exhaust Gas, represents the enforcement of only arranging a Cyclone Separator with Downward Exhaust GasExample, Fig. 7 is the top view of arranging two Cyclone Separator with Downward Exhaust Gas, represents to arrange the embodiment of two Cyclone Separator with Downward Exhaust Gas.In the time arranging two Cyclone Separator with Downward Exhaust Gas 14, two Cyclone Separator with Downward Exhaust Gas 14 are middle by separator median septum 32 intervals.Flue gas enters separator from both sides separator inlet passage 13 respectively.
Fuel feeds from fuel apparatus for feeding 3, supports the air stream of burning to send into from air distribution plate 1 after air preheater 21, combustionMaterial is successively in main combustion chamber emulsion zone 2, main combustion chamber dilute-phase zone 4, subsidiary combustion chamber 6 and the interior burning of secondary furnace 11, and what burning produced carriesThe flue gas of granule materials, while flowing through V-arrangement ash bucket 28 between subsidiary combustion chamber 6 and secondary furnace 11, due to inertial separation effect, oneA little granule materials are separated and be deposited in V-arrangement ash bucket, and the granule materials not separating is lower exhaust along with flue gas continues to flow intoCyclone separator 14, separates by Cyclone Separator with Downward Exhaust Gas 14. The granule materials that Cyclone Separator with Downward Exhaust Gas 14 separatesAlong feed back standpipe 24, oblique returning charge passage 25, flow to material returning device 27, converge with the granule materials flowing into from V-arrangement ash bucket 28,Then the returning charge mouth 26 of sending into emulsion zone by material returning device 27, granule materials enters main combustion chamber emulsion zone 2 from returning charge mouth 26, fromAnd realize the circulation of material. By the granule materials on the one hand unburnt carbon granule of burning capable of circulation that circulates, improve efficiency of combustion,Can also improve on the other hand the granule materials concentration of main combustion chamber, subsidiary combustion chamber, improve heat transfer coefficient. Flue gas passes through back-end ductworkSmoke inlet 29 enters back-end ductwork 23, flows through successively economizer 20 and air preheater 21, flows out pot from exhanst gas outlet 22Stove.
For the steam boiler of producing saturated vapor, boiler feedwater enters from economizer feed-water intake 19, after economizer 20Enter drum 8, the liquid-vapor mixture of drawing from carbonated drink fairlead 7 is isolated steam in drum 8, and steam draws through saturated vaporGo out pipe 9 for user. For the hot-water boiler of producing hot water, boiler feedwater enters from economizer feed-water intake 19, and province flows throughAfter coal 20, main combustion chamber, subsidiary combustion chamber 6, secondary furnace 11 heating, cause hot user through hot water outlet 31.
Claims (3)
1. with the Horizontal CFB Boiler of Cyclone Separator with Downward Exhaust Gas, it comprise by main combustion chamber emulsion zone (2) andMain combustion chamber, subsidiary combustion chamber (6), secondary furnace (11) and the back-end ductwork (23) of main combustion chamber dilute-phase zone (4) composition, at after-flameTop, chamber (11) is furnished with exhanst gas outlet, is furnished with economizer (20) and air preheater (21) in back-end ductwork (23);There is air distribution plate (1) in main combustion chamber lower disposed; Between main combustion chamber and subsidiary combustion chamber (6), be furnished with the first water-cooling wall partition wall (5),Between subsidiary combustion chamber (6) and secondary furnace (11), be furnished with the second water-cooling wall partition wall (10); Subsidiary combustion chamber (6) and secondary furnace (11)V-arrangement ash bucket (28) is formed on bottom, is furnished with material returning device (27) in V-arrangement ash bucket (28) bottom, and material returning device (27) is with mainBurning returning charge mouth (26) is connected, and it is characterized in that: be furnished with 1～2 downward air discharge cyclone on back-end ductwork (23) top and separateDevice (14), each Cyclone Separator with Downward Exhaust Gas (14) comprise separator inlet passage (13), Membrane Separator Cylinder for CFB Boiler (16),Upper starting taper (15), central tube (17) and lower shoe (18); Membrane Separator Cylinder for CFB Boiler (16) is by separator inlet passage (13)Be connected with the exhanst gas outlet of secondary furnace (11); On lower shoe (18), be furnished with circular back-end ductwork smoke inlet (29), withCentral tube (17) is connected; Described Cyclone Separator with Downward Exhaust Gas (14) bottom comprises feed back contraction section (30), feed back standpipe(24) and oblique returning charge passage (25), oblique returning charge passage (25) is connected with material returning device (27); Described central tube (17)Diameter D2 equates with upper starting taper (15) diameter D1; Upper starting taper (15) cone top part is apart from the upper edge of separator inlet passage (13)Height h2 and the ratio of separator inlet passage (13) height h1 be 0.10～0.25; Central tube (17) upper end distance pointBe 0.25～0.30 from the height h3 on the lower edge of device access road (13) and the ratio of separator inlet passage (13) height h1.
2. according to a kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas claimed in claim 1, its feature existsBe 15～50 ° in: described lower shoe (18) with the angle β of horizontal direction, the cone angle of upper starting taper (15) vertex of a cone is 45～60 °, the cross section of Membrane Separator Cylinder for CFB Boiler (16) is circular or square.
3. according to a kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas claimed in claim 1, its feature existsIn: in the time that described layout of boiler has two Cyclone Separator with Downward Exhaust Gas, two separator intermediate arrangement have separator median septum(32)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073561.4A CN103836617B (en) | 2014-02-28 | 2014-02-28 | A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073561.4A CN103836617B (en) | 2014-02-28 | 2014-02-28 | A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103836617A CN103836617A (en) | 2014-06-04 |
| CN103836617B true CN103836617B (en) | 2016-05-11 |
Family
ID=50800364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410073561.4A Active CN103836617B (en) | 2014-02-28 | 2014-02-28 | A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836617B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373934B (en) * | 2014-11-03 | 2016-10-26 | 中国华能集团清洁能源技术研究院有限公司 | The preparation storage of CFBB recycle stock and adding set and method |
| CN107513437A (en) * | 2017-10-13 | 2017-12-26 | 国科洁能（北京）科技有限公司 | A kind of Horizontal type circulating fluid bed gasification process and device |
| CN108758643A (en) * | 2018-07-17 | 2018-11-06 | 北京亚高科能源科技有限公司 | A kind of gasification, and combustion turbulent flow incinerator |
| CN113531521A (en) * | 2021-08-25 | 2021-10-22 | 温州宏泽热电股份有限公司 | Combustion control system of circulating fluidized bed boiler |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5193490A (en) * | 1991-09-03 | 1993-03-16 | The Babcock & Wilcox Company | Cyclonic mixing and combustion chamber for circulating fluidized bed boilers |
| CN1112033A (en) * | 1993-06-25 | 1995-11-22 | 王怀彬 | High-efficiency low-resistance cyclone separator |
| CN2219429Y (en) * | 1994-10-08 | 1996-02-07 | 浙江大学 | Square exhausting-down hot-exchange separator |
| CN2576316Y (en) * | 2002-10-28 | 2003-10-01 | 上海化工研究院 | Novel bag-type composite duster |
| CN1795969A (en) * | 2004-12-29 | 2006-07-05 | 清华大学 | Method and equipment for preparing slaked lime in use for stack gas desulfurization system in dry method |
| CN100441946C (en) * | 2006-11-09 | 2008-12-10 | 华中科技大学 | Boiler system of circulating fluid bed burning in oxygen enrichment |
| CN201652335U (en) * | 2009-12-14 | 2010-11-24 | 杨群峰 | Novel central cylinder with separation device for circulating fluidized bed boiler |
| CN102537943B (en) * | 2012-01-17 | 2014-04-02 | 清华大学 | Horizontal type circulating fluidized bed boiler with horizontal cyclone separator |
-
2014
- 2014-02-28 CN CN201410073561.4A patent/CN103836617B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103836617A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103836612B (en) | A kind of Horizontal type circulating fluid bed superheated steam boiler | |
| CN102537943B (en) | Horizontal type circulating fluidized bed boiler with horizontal cyclone separator | |
| CN105164469B (en) | Include the fluidized-bed combustion boiler of multifunctional inertia gravity separator | |
| CN103836617B (en) | A kind of Horizontal CFB Boiler with Cyclone Separator with Downward Exhaust Gas | |
| CN201463253U (en) | Double-furnace horizontal type industrial pulverized coal fired boiler | |
| CN101586805B (en) | Combustion device for biomass granular fuel | |
| CN104791748A (en) | Double-direct-current circulating fluidized bed steam injection boiler with buried pipes and evaporation coils | |
| CN201811432U (en) | Heat-conduction oil boiler of recirculating fluidized bed | |
| CN204301027U (en) | Verticle coal-burning stem boiler | |
| CN205424879U (en) | A 300MWCFB boiler for using oil shale | |
| CN102242970A (en) | Superconducting material heat exchange multi-flue normal-pressure energy-saving boiler | |
| CN202013015U (en) | Vertical half gas positive burning heating boiler | |
| CN205897085U (en) | Bubbling fluidized bed boiler of burming biomass granule | |
| CN105444144B (en) | For using the 300MWCFB boilers and layout method of oil shale | |
| CN204329002U (en) | The double reheat device of CFBB | |
| CN103353164A (en) | Arch-shaped water pipe boiler with double sections heated and heating method | |
| CN101358769A (en) | Heating apparatus for oil and water mixture fire coal circulating fluidized bed | |
| CN101187501A (en) | Low discharge high energy efficiency vertical shell type water-fire tube boiler | |
| CN201652776U (en) | Energy-saving efficient boiler | |
| CN101187467A (en) | Low discharge high energy efficiency vertical shell type water-fire tube boiler | |
| CN204062978U (en) | A kind of two drum expansion chamber spray denitration corner tube boiler | |
| CN204062980U (en) | A kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler | |
| CN202470397U (en) | Smoke-separating energy-saving vertical type bent water pipe boiler | |
| CN204062982U (en) | A kind of two drum spray denitration sedimentation separation corner tube boiler | |
| CN104791749B (en) | Band pipe laying and evaporation coil direct current couple CFB injection boiler with Natural Circulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room A306, Auxiliary Building, A79 Shuangqing Road, Haidian District, Beijing, 100089 Patentee after: Rehua Energy Co.,Ltd. Address before: Room A306, Auxiliary Building, A79 Shuangqing Road, Haidian District, Beijing, 100089 Patentee before: Beijing Rehua Energy Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room A306, Auxiliary Building, A79 Shuangqing Road, Haidian District, Beijing, 100089 Patentee after: Beijing Rehua Energy Co.,Ltd. Address before: Room A109, Xueyan Building, Tsinghua Science Park, Haidian District, Beijing 100084 Patentee before: BEIJING NOWVA ENERGY TECHNOLOGY Co.,Ltd. |