CN103743095B - A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler - Google Patents

A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler Download PDF

Info

Publication number
CN103743095B
CN103743095B CN201410033197.9A CN201410033197A CN103743095B CN 103743095 B CN103743095 B CN 103743095B CN 201410033197 A CN201410033197 A CN 201410033197A CN 103743095 B CN103743095 B CN 103743095B
Authority
CN
China
Prior art keywords
heating surface
flue
temperature heating
firing
header
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
Application number
CN201410033197.9A
Other languages
Chinese (zh)
Other versions
CN103743095A (en
Inventor
王善武
沈士兴
徐子俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE Co.,Ltd.
Original Assignee
SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE filed Critical SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE
Priority to CN201410033197.9A priority Critical patent/CN103743095B/en
Publication of CN103743095A publication Critical patent/CN103743095A/en
Application granted granted Critical
Publication of CN103743095B publication Critical patent/CN103743095B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of structure unique, compact, without the need to steelframe support or suspention, drum, convection bank, economizer, metal consumption is low, the self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler that energy-conserving and environment-protective performance is good, comprises cornue frame, burner hearth, flue, import header, intermediate header and outlet header.Cornue frame is for longitudinal layout and lower end arranges several self-supporting pin; Burner hearth and flue to be weldingly fixed in cornue frame and to form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section constant speed passage.Arrange successively in flue be made up of several high-temperature surface modules high-temperature surface, be made up of heating surface module warm in several in warm heating surface and the low temperature heating surface that is made up of several low temperature heating surface modules, import header and outlet header are arranged in the below of the exhanst gas outlet of flue and the upper rear of burner hearth correspondingly.

Description

A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler
Technical field
The present invention relates to a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler.
Background technology
The energy is the important substance basis that human society is depended on for existence and development.According to China " 12 " the energy development target that National Energy Board issues in October, 2012, China will implement Energy consumption intensity and total quantity consumed double control, accelerate energy structure optimizing process.Therefore energy-saving and emission-reduction have become the common task of entire society.According to the prevention and control of air pollution action plan that in September, 2013, State Council just promulgated, accelerate clean energy resource and substitute utilization, strengthen natural gas, coal gas, coal bed gas supply.For this reason, the coal of boiler changes the Important Action that gas becomes China's present stage Environment control atmosphere pollution.
Fired gas-fired hot water boiler refers to that the heat of combustible gas or oil generation after burning produces the boiler of hot water for heating water.Existing fired gas-fired hot water boiler is mostly SZS series oil burning boiler and WNS series.SNS series of heat homogeneous solution-type reactor is the water-tube steam boiler of a kind of pair of drum, longitudinal, the burning of pressure-fired room, this boiler adopts D type to arrange, upper and lower drum is longitudinally arrange, flue gas flow partition wall is film-type water-cooling tube wall, what arrange on the left of boiler is convection bank, to the boiler of band superheater, superheater is arranged in stockhole turning area.Its primary structure of WNS series of heat homogeneous solution-type reactor by shell, flue, turn smoke-box, smoke pipe etc. and form, flue is corrugated internal furnace; Adopt round steel cable-stayed support between shell and tube sheet, between return combustion chamber and back tube sheet, then adopt the reinforcement in addition of short stay bolt bar.There is the problem that steel consumption is large, cost is high, structure is loaded down with trivial details, the thermal efficiency is not high in these fired gas-fired hot water boilers.
Summary of the invention
The object of the invention is to overcome the defect of prior art and provide a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, its structure is unique, compact, and support or suspention without the need to steelframe, metal consumption is low, and energy-conserving and environment-protective performance is good.
The object of the present invention is achieved like this: a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprise cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, wherein
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are arranged in described flue from A-P successively; Described high-temperature surface is made up of several high-temperature surface modules, and described middle temperature heating surface is made up of heating surface module warm in several, and described low temperature heating surface is made up of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of the exhanst gas outlet of described flue and the upper rear of described burner hearth correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between the afterbody of described low temperature heating surface and described flue;
The flue gas of described hot-water boiler is single channel flow process, namely fuel and air carry out mixed combustion by burner, thermal-flame and flue gas is produced in described burner hearth, high-temperature flue gas leaves described flue through exhanst gas outlet after entering described high-temperature surface, middle temperature heating surface, low temperature heating surface successively, enter air finally by chimney, exhaust gas temperature is 70 DEG C ~ 150 DEG C;
The water circulation of described hot-water boiler is forced circulation, namely the backwater of user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, intermediate header between the afterbody arriving described low temperature heating surface and described flue after right membrane wall heat exchange, described import header is distributed to again through hot water inlet tube, then low temperature heating surface is flowed through successively, middle temperature heating surface, described outlet header is entered after high-temperature surface, complete the heating process of recirculated water.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the variable cross-section uniform flow passage of described burner hearth and flue is made up of the described upper membrane wall of the described lower membrane wall facing structure directly, left and right membrane wall and right and wrong structure.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe in band expansion heating face to form.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the pipe in described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described exhanst gas outlet also arranges air preheater.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
The feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is:
1. whole boiler is supported by self cornue frame and self-supporting pin and is strengthened, support or suspention without the need to steelframe, heating surface characteristics of compact layout, without the need to drum, convection bank and economizer, metal consumption is low, and flue gas resistance is little, and floor space is little and reduce factory building height, compared with other pattern boiler of same initial conditions, the reduction by more than 15% of steel consumption;
2. three heating surfaces of boiler all adopt modularized design, can do according to demand to increase and decrease, and centering temperature or low-temperature heat exchange face adopt extended surface, compared with other pattern boiler of same initial conditions, and the reduction by more than 15% of steel consumption;
3. the smoke flow channels of boiler adopts the single channel design of uniform flow, effectively enhances the heat exchange efficiency of heating surface, compared with other pattern boiler of same initial conditions, and the reduction by more than 10% of steel consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-bearing type fuel-firing gas-firing corner-tube hot-water boiler of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention, comprise cornue frame 1, burner hearth 2, flue 3, burner 30, high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, some intermediate headers 6 and partition apparatus 7, wherein:
Cornue frame 1 is longitudinally arranged, the bottom of this cornue frame 1 arranges several self-supporting pin 8;
Burner hearth 2 and flue 3 are weldingly fixed on the inside of cornue frame 1 and form holistic single-pass configuration by upper and lower membrane wall 21,22 and left and right membrane wall 23,24, and burner hearth 2 and flue 3 are variable cross-section uniform flow passage; The exhanst gas outlet 34 of flue 3 can arrange air preheater;
High-temperature surface 31, middle temperature heating surface 32 and low temperature heating surface 33 are arranged in flue 3 from A-P successively; High-temperature surface 31 is formed by several high-temperature surface module assembleds, and high-temperature surface module adopts light pipe to make; Middle temperature heating surface 32 is formed by heating surface module assembled warm in several, and low temperature heating surface 33 is formed by several low temperature heating surface module assembleds; Middle temperature heating surface module and low temperature heating surface module all adopt the pipe in the band expansion heating face comprising light pipe, spiral fin coil, H type finned tube, extended surface tube and tooth punching finned tube to form;
Import header 4 and outlet header 5 are arranged in the below of the exhanst gas outlet 34 of flue 3 and the upper rear of burner hearth 2 correspondingly;
Intermediate header 6 is fixed on cornue frame 1 and also arranges respectively between high-temperature surface 31 and middle temperature heating surface 32, between middle temperature heating surface 32 and low temperature heating surface 33 and between the afterbody of low temperature heating surface 33 and flue 3;
Partition apparatus 7 is arranged on the front portion of the upper and lower header of left and right membrane wall 23,24, and recirculated water can be made by the flow path circulation of setting;
The flue gas flow of hot-water boiler is single channel flowing, namely fuel and air carry out mixed combustion by burner 3, thermal-flame and flue gas is produced in burner hearth 2, high-temperature flue gas leaves flue 3 through exhanst gas outlet 34 after entering high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33 successively, enter air finally by chimney, exhaust gas temperature is 70 DEG C ~ 150 DEG C;
The water circulation of hot-water boiler is forced circulation, namely the backwater of user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall 21, the header of 22, flow to the upper of boiler front end again, lower membrane wall 21, the header of 22, then uniform distribution is given left, right membrane wall 23, 24 upper, lower header, through a left side, right membrane wall 23, intermediate header 6 between the afterbody arriving low temperature heating surface 33 and flue 3 after 24 heat exchange, import header 4 is distributed to again through hot water inlet tube 9, then low temperature heating surface 33 is flowed through successively, middle temperature heating surface 32, the laggard inlet/outlet header 5 of high-temperature surface 33, complete the heating process of recirculated water.
Execute in example at one, the variable cross-section uniform flow passage of burner hearth 2 and flue 3 is made up of the upper membrane wall 21 of the lower membrane wall 22 facing structure directly, left and right membrane wall 23,24 and right and wrong structure, the structure that the present embodiment adopts the cross section of the cross section of burner hearth 2, high-temperature surface 31, the cross section of middle temperature heating surface 32 and the cross section of low temperature heating surface 33 to diminish gradually, make flue gas from burner hearth 2 to the flow process of the exhanst gas outlet 34 of flue 3 be uniform flow.
The design feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is: be welded into an overall cornue frame structure by cornue frame 1, the lower membrane wall 22 forming burner hearth 2 and flue 3, right membrane wall 24, left membrane wall 23 and upper membrane wall 21, partition apparatus 7, self-supporting pin 8, high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, exhanst gas outlet 34, hot water inlet tube 9, intermediate header 6, whole boiler only need be supported by self-supporting pin 8;
The technical characterstic of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is:
1. burner hearth and flue are single pass full film water cold wall structure, high, in low heating surface characteristics of compact layout, without the need to drum, convection bank and economizer, therefore there is the feature that metal consumption is low, flue gas resistance is little, floor space is little and reduce factory building height;
2. boiler adopts self-bearing type supporting construction, supports without the need to steelframe;
3. the burner hearth of boiler and flue form an overall single-pass configuration by fin panel casing, make the expansion direction of boiler consistent;
4. the water circulation of boiler is forced circulation, and the line clear of water circulation is reasonable, makes the heat exchange of boiler reach optimum efficiency;
5. the burner hearth of boiler is made up of fin panel casing, good seal performance, can ensure boiler pressure-fired, low NOx combustion;
6. the high, medium and low temperature heating surface of boiler all adopts modularized design, can do according to demand to increase and decrease;
7. the high, medium and low temperature heating surface of boiler adopts the design of variable cross-section uniform flow and flow direction along flue gas is arranged, makes the heat transfer of high, medium and low temperature heating surface even.
In addition, because temperature when flue gas is discharged from flue is still higher, arrange air preheater in the tail flue gas outlet of flue, the heat of flue gas can be absorbed, reduce the exhaust gas temperature of flue gas, save the energy, improve heat exchange efficiency.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.

Claims (6)

1. a self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprises cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, it is characterized in that,
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are arranged in described flue from A-P successively; Described high-temperature surface is made up of several high-temperature surface modules, and described middle temperature heating surface is made up of heating surface module warm in several, and described low temperature heating surface is made up of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of the exhanst gas outlet of described flue and the upper rear of described burner hearth correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between the afterbody of described low temperature heating surface and described flue;
The flue gas of described hot-water boiler is single channel flow process, namely fuel and air carry out mixed combustion by burner, thermal-flame and flue gas is produced in described burner hearth, high-temperature flue gas leaves described flue through exhanst gas outlet after entering described high-temperature surface, middle temperature heating surface, low temperature heating surface successively, enter air finally by chimney, exhaust gas temperature is 70 DEG C ~ 150 DEG C;
The water circulation of described hot-water boiler is forced circulation, namely the backwater of user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, intermediate header between the afterbody arriving described low temperature heating surface and described flue after right membrane wall heat exchange, described import header is distributed to again through hot water inlet tube, then low temperature heating surface is flowed through successively, middle temperature heating surface, described outlet header is entered after high-temperature surface, complete the heating process of recirculated water.
2. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, the variable cross-section uniform flow passage of described burner hearth and flue is made up of the described upper membrane wall of the described lower membrane wall facing structure directly, left and right membrane wall and right and wrong structure.
3. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe in band expansion heating face to form.
4. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 3, is characterized in that, the pipe in described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
5. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, described exhanst gas outlet also arranges air preheater.
6. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
CN201410033197.9A 2014-01-24 2014-01-24 A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler Active CN103743095B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410033197.9A CN103743095B (en) 2014-01-24 2014-01-24 A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410033197.9A CN103743095B (en) 2014-01-24 2014-01-24 A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler

Publications (2)

Publication Number Publication Date
CN103743095A CN103743095A (en) 2014-04-23
CN103743095B true CN103743095B (en) 2016-03-30

Family

ID=50500143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410033197.9A Active CN103743095B (en) 2014-01-24 2014-01-24 A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler

Country Status (1)

Country Link
CN (1) CN103743095B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019552B (en) * 2014-05-30 2016-08-24 西安交通大学 A kind of combustion gas angle pipe hot water boiler water circulation structure
CN104154661B (en) * 2014-08-06 2017-02-01 西安交通大学 Fuel oil and fuel gas angle pipe boiler structure for strengthening convection pipe screen through needle fins
CN106288371A (en) * 2016-09-26 2017-01-04 江苏双良锅炉有限公司 Forced circulation fuel-firing gas-firing pipe hot water boiler
CN107655204A (en) * 2017-10-27 2018-02-02 北京奥林匹亚锅炉有限公司 Horizontal atmospheric water boiler
CN108591997A (en) * 2018-05-31 2018-09-28 上海工业锅炉研究所有限公司 A kind of DHS corner tube types fuel-firing gas-firing steam boiler
CN112032698A (en) * 2020-09-18 2020-12-04 江苏双良锅炉有限公司 Novel low-nitrogen-emission cold flame combustion integrated steam boiler
CN114517912A (en) * 2022-04-03 2022-05-20 江苏海德利热能设备制造有限公司 High-efficiency steam boiler structure with large heat exchange area

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2269560Y (en) * 1996-05-22 1997-12-03 锦州第二锅炉厂 Forced circulation cornue type water heating boiler
CN2272994Y (en) * 1995-10-27 1998-01-21 天津市天龙热能设备有限公司 High-efficiency heat pipe energy-saving hot-water boiler
DE102010002737A1 (en) * 2009-03-10 2011-06-30 ERK Eckrohrkessel GmbH, 12435 Method for producing flue gas with temperature of eight hundred degree Celsius, involves producing combustion gas by reduction of surrogate fuel, where combustion gas is cooled to certain temperature
CN202392765U (en) * 2011-11-25 2012-08-22 上海工业锅炉研究所 Self-supporting type waste heat boiler
CN203687344U (en) * 2014-01-24 2014-07-02 上海工业锅炉研究所 Bottom supported single-channel fuel and gas corner tube hot water boiler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2272994Y (en) * 1995-10-27 1998-01-21 天津市天龙热能设备有限公司 High-efficiency heat pipe energy-saving hot-water boiler
CN2269560Y (en) * 1996-05-22 1997-12-03 锦州第二锅炉厂 Forced circulation cornue type water heating boiler
DE102010002737A1 (en) * 2009-03-10 2011-06-30 ERK Eckrohrkessel GmbH, 12435 Method for producing flue gas with temperature of eight hundred degree Celsius, involves producing combustion gas by reduction of surrogate fuel, where combustion gas is cooled to certain temperature
CN202392765U (en) * 2011-11-25 2012-08-22 上海工业锅炉研究所 Self-supporting type waste heat boiler
CN203687344U (en) * 2014-01-24 2014-07-02 上海工业锅炉研究所 Bottom supported single-channel fuel and gas corner tube hot water boiler

Also Published As

Publication number Publication date
CN103743095A (en) 2014-04-23

Similar Documents

Publication Publication Date Title
CN103743095B (en) A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler
CN206073441U (en) Forced circulation fuel-firing gas-firing pipe hot water boiler
CN102620274B (en) Horizontal oil-fired and gas-fired efficient energy-saving boiler
CN104359098A (en) Three-return-stroke powder heat conduction oil boiler
CN203687344U (en) Bottom supported single-channel fuel and gas corner tube hot water boiler
CN103363663B (en) Heavy die block assembling high-efficiency condensing type gas-fired water heating boiler
CN203147726U (en) Pi-structural catalytic unit CO incineration waste heat boiler
CN102242970A (en) Superconducting material heat exchange multi-flue normal-pressure energy-saving boiler
CN105066437B (en) The complete wet back of the body central flame flame boiler of integral type
CN106288371A (en) Forced circulation fuel-firing gas-firing pipe hot water boiler
CN104165455B (en) A kind of waterpipe type high-temperature hot-water boiler
CN202229154U (en) System for using organic heat carrier boiler smoke waste heat to generate low voltage steam
CN205939674U (en) Extreme misery pipe boiler
CN105180132A (en) Novel fuel oil and fuel gas steam boiler
CN219389678U (en) sZS fast-assembling energy-saving boiler with fins
RU2296919C2 (en) Hot-water water-tube boiler
CN205208690U (en) Gas -fired hot water boiler water route circulation economizer system
CN216244878U (en) Large-scale water pipe gas boiler of pin-connected panel
CN210398862U (en) Efficient shale-combustion gas-water pipe steam boiler
CN204240339U (en) A kind of three backhaul powder hot-water boilers
CN214580996U (en) Energy-saving environment-friendly horizontal three-pass boiler structure
CN204153969U (en) Screwed pipe assembly
CN202188495U (en) Superconducting material heat exchange normal-pressure energy-saving boiler with long flue duct
CN108317720A (en) A kind of oil burning boiler
CN216308228U (en) Large-scale fire tube vacuum hot water unit

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
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 201114 Room 101 and 201, 4 building, 138 new Chun Ring Road, Minhang District, Shanghai.

Patentee after: SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE Co.,Ltd.

Address before: 200071 Shanghai city Zhabei District Baochang Road No. 297

Patentee before: SHANGHAI INDUSTRIAL BOILER Research Institute