CN202114470U - High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row - Google Patents

High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row Download PDF

Info

Publication number
CN202114470U
CN202114470U CN2011201419461U CN201120141946U CN202114470U CN 202114470 U CN202114470 U CN 202114470U CN 2011201419461 U CN2011201419461 U CN 2011201419461U CN 201120141946 U CN201120141946 U CN 201120141946U CN 202114470 U CN202114470 U CN 202114470U
Authority
CN
China
Prior art keywords
tube
production line
district
row
boiler tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201419461U
Other languages
Chinese (zh)
Inventor
浦杰
何明胜
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN2011201419461U priority Critical patent/CN202114470U/en
Application granted granted Critical
Publication of CN202114470U publication Critical patent/CN202114470U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The utility model provides a high-temperature-resistant alloy furnace tube for petrochemical industry and a production line of a tube row, wherein the production line of the tube row is composed of the following components: a casting workshop production line, a machining workshop production line and a welding workshop production line. A centrifugal casting method is adopted for casting the tube segments which respectively have a tube diameter of 50-300 mm and a length of 3-6 m. A boring method is adopted for removing a loosen layer of an inner hole of each tube segment. A numerical control tube lathe is adopted for machining a bevel. An argon arc welding method is adopted for welding the tube segment of the furnace tube into long tubes which are prescribed by a drawing. Welding for flanges and joint accessories is adopted for obtaining the furnace tube. Long tubes of the furnace tube are welded to the tube row. The tube row becomes a qualified tube row and a tube row product through the following tests by a series of sets of test equipment: chemical component test, normal-temperature mechanical performance test, high-temperature mechanical performance test, air pressure test, water pressure test, fluorescent flaw-detection, color flaw-detection, ray flaw-detection and dimension test. The production line of the tube row has the following advantages: compact structure between the equipment of processes, small workshop occupation space; stable and reliable quality of the tube product, high production efficiency and improved economic benefit.

Description

A kind of petrochemical industry is with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line
Technical field:
The utility model relates to the production line of a kind of petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row; It is used for each processing apparatus of production process such as casting, machining, welding, packing; And necessary checkout equipment and monitoring point rational deployment between the operation, and all connect into production line with track, boiler tube and pipe thereof are come on the production line flow in a rational and orderly way; Through production process and check problem relevant in the production line, become qualified boiler tube and pipe row product thereof.
Background technology:
Petrochemical industry is with boiler tube and pipe row, and it is mainly used in petrochemical industry ethane cracking furnace and hydrogen manufacturing conversion furnace.
Ethane cracking furnace is a heart of making the ethylene product unstripped gas with oil gas.Ethylene product is again the industrial chemicals product that is related to people's clothing, food, lodging and transportion--basic necessities of life.The development level of ethylene product is the outstanding feature of a national petrochemical industry development level.
Hydrogen manufacturing conversion furnace is to make hydrogen with oil gas, is used for synthetic ammonia and makes chemical fertilizer, developing agricultural production; Be used for synthesizing methanol, can be used as the basic material of chemical products such as dimethyl ether, acetic acid partly as the substitute of gasoline; Be used for the raw material of metallurgy industry as the iron reduction; Be used in particular for the oil refining industry hydrogenation, can improve the quality of gasoline, reach pollution control regulation, be used for hydrocracking and refine more better oil products from the heavy wax oil to the increasingly high requirement of oil product.
If ours is that the clean energy resource of power is succeeded in developing with hydrogen, the present gas station of Na Jia hydrogen station picture as many must have the hydrogen manufacturing conversion furnace of corresponding manufacturing hydrogen just can satisfy the demand.
Petrochemical industry is arranged with high-temperature resisting alloy furnace tubes by adopting and pipe, generally at 800-1200 ℃ of high temperature, and under the 2.0-4.0MPa pressure, continuous operation in being flooded with the Korrosionsmedium environment, be 100,000 hours about 11 years its projected life, environment for use is very abominable.Therefore, its workmanship is required also very strictness.
At present domestic and international petrochemical industry is divided three classes with high-temperature resisting alloy furnace tubes by adopting and pipe row's manufacturer:
The first kind: production scale is little, is not the manufacturer of professional production petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row thereof.These factories are mingled in a production with boiler tube and pipe row thereof with other similar products production, and its production equipment and check point also are mingled in together certainly.The difference that is easy to difference, check problem and the requirement of difference, production technology owing to boiler tube and pipe row thereof and the requirement of other similar products like this causes boiler tube and pipe row product quality thereof defective.
Second type: production scale is little, though be the production specialized factory of professional production petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row thereof, the boiler tube production equipment is outmoded, and checkout equipment is backward, incomplete, and production process is unreasonable with detection operation layout.The boiler tube quality of these manufacturer production is unstable, unreliable.
The 3rd type: producing has certain scale; Also be the production specialized factory of professional production petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row thereof; Boiler tube production equipment and checkout equipment are complete; But production process is unreasonable with detection operation layout, respectively produces and the check problem confusion, relies on the product running of driving a vehicle each production and check problem.The boiler tube quality of these manufacturer production is still unstable.
Summary of the invention:
The purpose of the utility model is exactly that the production line of a kind of petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row will be provided, and it can overcome the existing problem of above product quality.The purpose of the utility model is achieved in that the production line of a kind of petrochemical industry with high-temperature resisting alloy furnace tubes by adopting and pipe row, it is characterized in that: be divided into foundry's production line, and the machine shop production line, the welding shop production line is formed; Adopt centrifugally cast method, pour into caliber 50-300 millimeter, the pipeline section that length 3-6 rice is long; Adopt the method for bore hole, the weaker zone processing of pipeline section endoporus is removed; Adopt the numerical-control tube lathe finished edge; Adopt the welding method of argon arc welding that the boiler tube pipeline section is welded into the long tube that drawing is stipulated; Adopt welded flange, joint annex, become boiler tube; The boiler tube long tube is welded into pipe row; In each production process, become qualified boiler tube and pipe row product thereof through chemical composition, normal temperature mechanical performance, high-temperature mechanical property, gas pressure test, the water pressure test, fluorescent flaw detection, dye penetrant inspection, radiographic inspection, appearance test, a series of inspection machines of dimension control and program; Described foundry production line is that centrifuge is arranged on central authorities, and intermediate frequency furnace is arranged on the right-hand member top; Described intermediate frequency furnace the right is provided with the heat-treatment zone, and the left side, below is provided with that type tube is put the district, the right is provided with the sand casting district; Described centrifuge top is provided with pneumatic plyer, pneumatic plyer track; The shell storage area of logical top; Begin from the shell storage area; By rollgang carry around centrifuge, counterclockwise be disposed with compressed air shotblasting machine,, inspection of blank district, district to be cut, cutting machine Pipe Cutting district, the airtight joint survey device of fluorescence district, fluorescent ventricle, and change the boiler tube blank over to machine shop by escape way by rollgang.Described machine shop production line is boiler tube deep hole boring machine bore hole district to be arranged on right-hand member be divided into two rows, and right top is provided with the blank storage area; Left end also is divided into two rows, and the left side, left lower end is provided with pipeline section hydraulic pressure district, the right is provided with dimension control, roughness check, eddy current test district; Left upper end is disposed with pipe arrangement district, cutting machine cutting area from right to left, treats the groove district, numerical control beveling machine processing district, dimension control groove colour attaching area; More than all be provided with rollgang between each operation, and change the boiler tube semi-finished product over to welding shop by escape way by rollgang.Described welding shop production line, first row is disposed with automatic weldering weld zone from right to left, weld colour attaching area, manual argon arc welding weld zone, alignment district, colour attaching area, polishing root of weld district, X ray transit zone, second row automatically is provided with X ray district, manual argon arc welding weld zone, straight long tube colour attaching area, water pressure test district, boiler tube product bore area, boiler tube product inspection bagging area to finished product from left to right and delivers; In boiler tube product inspection bagging area, also be provided with pipe row and use the boiler tube transit zone; Described pipe is arranged with below, boiler tube transit zone the 3rd row and is provided with pipe row transporter, the row of pipe weld zone, pipe row colour attaching area, pipe draining pressure trial zone from right to left; The 4th row is provided with pipe row's sand blasting room, pipe row bagging area, pipe row shipping space from left to right, more than all be provided with rollgang between each operation.Compact conformation between each processing apparatus of the utility model, it is little to account for plant area; Boiler tube flows among per pass inspection process, checkout equipment, and control of product quality is orderly, avoids omission; Boiler tube flows on roller-way, and the handling of need not driving a vehicle guarantees that boiler tube can not damage and endanger ground life safety, reduces noise.Can guarantee the boiler tube stable and reliable product quality, production efficiency is high, has reduced labour intensity, has improved economic benefit.
Description of drawings:
Fig. 1 is the utility model foundry production line operation sketch map;
Fig. 2 is the utility model machine shop production line operation sketch map;
Fig. 3 is the utility model welding shop production line operation sketch map;
The specific embodiment:
A kind of petrochemical industry is characterized in that with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line: be divided into foundry's production line, and the machine shop production line, the welding shop production line is formed; Adopt centrifugally cast method, pour into caliber 50-300 millimeter, the pipeline section that length 3-6 rice is long; Adopt the method for bore hole, the weaker zone processing of pipeline section endoporus is removed; Adopt the numerical-control tube lathe finished edge; Adopt the welding method of argon arc welding that the boiler tube pipeline section is welded into the long tube that drawing is stipulated; Adopt welded flange, joint annex, become boiler tube; The boiler tube long tube is welded into pipe row; In each production process, become qualified boiler tube and pipe row product thereof through chemical composition, normal temperature mechanical performance, high-temperature mechanical property, gas pressure test, the water pressure test, fluorescent flaw detection, dye penetrant inspection, radiographic inspection, appearance test, a series of inspection machines of dimension control and program; Described foundry production line is that centrifuge is arranged on central authorities, and intermediate frequency furnace is arranged on the right-hand member top; Described intermediate frequency furnace the right is provided with the heat-treatment zone, and the left side, below is provided with that type tube is put the district, the right is provided with the sand casting district; Described centrifuge top is provided with pneumatic plyer, pneumatic plyer track; The shell storage area of logical top; Begin from the shell storage area; Around centrifuge, counterclockwise be disposed with compressed air shotblasting machine, inspection of blank district, district to be cut, cutting machine Pipe Cutting district, the airtight joint survey device of fluorescence district, fluorescent ventricle by the rollgang conveying, and change the boiler tube blank over to machine shop by escape way by rollgang; Described machine shop production line is boiler tube deep hole boring machine bore hole district to be arranged on right-hand member be divided into two rows, and right top is provided with the blank storage area; Left end also is divided into two rows, and the left side, left lower end is provided with pipeline section hydraulic pressure district, the right is provided with dimension control, roughness check, eddy current test district; Left upper end is disposed with pipe arrangement district, cutting machine cutting area from right to left, treats the groove district, numerical control beveling machine processing district, dimension control groove colour attaching area; More than all be provided with rollgang between each operation, and change the boiler tube semi-finished product over to welding shop by escape way by rollgang; Described welding shop production line, first row is disposed with automatic weldering weld zone from right to left, weld colour attaching area, manual argon arc welding weld zone, alignment district, colour attaching area, polishing root of weld district, X ray transit zone, second row automatically is provided with X ray district, manual argon arc welding weld zone, straight long tube colour attaching area, water pressure test district, boiler tube product bore area, boiler tube product inspection bagging area to finished product from left to right and delivers; In boiler tube product inspection bagging area, also be provided with pipe row and use the boiler tube transit zone; Described pipe is arranged with below, boiler tube transit zone the 3rd row and is provided with pipe row transporter, the row of pipe weld zone, pipe row colour attaching area, pipe draining pressure trial zone from right to left; The 4th row is provided with pipe row's sand blasting room, pipe row bagging area, pipe row shipping space from left to right, more than all be provided with rollgang between each operation.During practical implementation, boiler tube and pipe row's thereof production line is divided into: foundry's production line, produce, check boiler tube pipeline section blank; Boiler tube pipeline section semi-finished product are produced, checked to the machine shop production line; The welding shop production line produces, checks boiler tube and pipe thereof to arrange the finished product of product; As shown in fig. 1, the utility model foundry production line is to be the center with the centrifuge, and intermediate frequency furnace is arranged on right-hand member top, all centrifugal casting apparatus and related check equipment, test point is arranged to the U font controls; With smelting qualified pouring molten steel in the centrifuge that carries out rotation at a high speed by technological requirement, centrifugal casting becomes the boiler tube pipeline section; Through pneumatic plyer tube drawing, be transported to the shell storage area by pneumatic plyer track; Be transported to compressed air shotblasting machine by rollgang and carry out blast cleaning; Be transported to the line that the inspection of blank district carries out inspection of blank and mechanical performance and metallographic specimen by rollgang; Be transported to cutting machine Pipe Cutting district by rollgang and carry out the cutting of boiler tube two ends; Check through the airtight joint survey device of fluorescence district, and carry out the fluorescent and the airtight check of boiler tube, become qualified boiler tube pipeline section blank at last by the fluorescent chamber.As shown in Figure 2; Described machine shop production line; Be boiler tube deep hole boring machine bore hole district to be arranged on right-hand member be divided into two rows; Right top is provided with the blank storage area, and the qualified boiler tube pipeline section blank that foundry's production line is carried is processed through deep hole boring machine, removes the weaker zone in the boiler tube pipeline section endoporus; After dimension control, roughness check, eddy current, the water pressure test are qualified, be transported to the long tube pipe arrangement that the pipe arrangement district carries out boiler tube respectively, to confirm the length of boiler tube pipeline section by rollgang; Carry out the length cutting of pipe arrangement through the cutting machine cutting area; Through numerical control beveling machine processing district, qualified through boiler tube pipeline section size, dye penetrant inspection again, become the qualified semi-finished product of boiler tube pipeline section.As shown in Figure 3: 1.) product is delivered goods with boiler tube long tube form; Welding shop production line first row is disposed with automatic weldering weld zone from right to left; By automatic welder(welding machine) qualified boiler tube pipeline section is carried out boiler tube long tube group butt weld backing welding; Be welded into the long tube of drawing specific length to the boiler tube pipeline section, be transported to automatic weldering colour attaching area through rollgang and carry out dye penetrant inspection; Carry out the filling weldering of boiler tube long tube weld seam to the manual argon arc welding weld zone; To the alignment district, colour attaching area, Sanding Area carry out alignment, dye penetrant inspection and the root of weld polishing of boiler tube long tube; Through the X ray transit zone,, carry out the weld seam radioscopy to the X ray district; To the manual argon arc welding weld zone, carry out flange, the welding of joint annex; Extremely straight long tube colour attaching area carries out the dye penetrant inspection of boiler tube weld seam; Carry out the water pressure test of boiler tube long tube to water pressure test district; Carrying out joint to boiler tube product bore area holes; It is qualified to carry out the product inspection of boiler tube long tube through the product inspection of boiler tube long tube, bagging area, the packing delivery.2.) product is with the delivery of boiler tube pipe row form, and qualified boiler tube long tube is transported to pipe row weld zone through rollgang with the boiler tube long tube with pipe row transporter with the boiler tube transit zone through pipe row, carries out boiler tube pipe row welding; The warp pipe is arranged the colour attaching area dye penetrant inspection, the pipe draining nip water pressure test carrying out related check is qualified; Handle, manage the delivery of package dress through pipe row sand blasting room.

Claims (4)

1. a petrochemical industry is characterized in that with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line: be divided into foundry's production line, and the machine shop production line, the welding shop production line is formed; Adopt centrifugally cast method, pour into caliber 50-300 millimeter, the pipeline section that length 3-6 rice is long; Adopt the method for bore hole, the weaker zone processing of pipeline section endoporus is removed; Adopt the numerical-control tube lathe finished edge; Adopt the method for argon arc welding welding that the boiler tube pipeline section is welded into the long tube that drawing is stipulated; Adopt welded flange, joint annex, become boiler tube; The boiler tube long tube is welded into pipe row; Each production process becomes qualified boiler tube and pipe row product through chemical composition, normal temperature mechanical performance, high-temperature mechanical property, gas pressure test, the water pressure test, fluorescent flaw detection, dye penetrant inspection, radiographic inspection, appearance test, a series of inspection machines of dimension control and program.
2. a kind of petrochemical industry according to claim 1 is with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line, and it is characterized in that: described foundry production line is that centrifuge is arranged on central authorities, and intermediate frequency furnace is arranged on the right-hand member top; Described intermediate frequency furnace the right is provided with the heat-treatment zone, and the left side, below is provided with that type tube is put the district, the right is provided with the sand casting district; Described centrifuge top is provided with pneumatic plyer, pneumatic plyer track; The shell storage area of logical top; Begin from the shell storage area; Around centrifuge, counterclockwise set gradually compressed air shotblasting machine, inspection of blank district, district to be cut, cutting machine Pipe Cutting district, the airtight joint survey device of fluorescence district, fluorescent ventricle by the rollgang conveying, and change the boiler tube blank over to machine shop by escape way by rollgang.
3. a kind of petrochemical industry according to claim 1 is with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line; It is characterized in that: described machine shop production line; Be boiler tube deep hole boring machine bore hole district to be arranged on right-hand member be divided into two rows, right top is provided with the blank storage area; Left end also is divided into two rows, and the left side, left lower end is provided with pipeline section hydraulic pressure district, the right is provided with dimension control, roughness check, eddy current test district; Left upper end is disposed with pipe arrangement district, cutting machine cutting area from right to left, treats the groove district, numerical control beveling machine processing district, dimension control groove colour attaching area; More than all be provided with rollgang between each operation, and change the boiler tube semi-finished product over to welding shop by escape way by rollgang.
4. a kind of petrochemical industry according to claim 1 is with high-temperature resisting alloy furnace tubes by adopting and pipe row's production line; It is characterized in that: described welding shop production line, first row is disposed with automatic weldering weld zone from right to left, weld colour attaching area, manual argon arc welding weld zone, alignment district, colour attaching area, polishing root of weld district, X ray transit zone, second row automatically is provided with X ray district, manual argon arc welding weld zone, straight long tube colour attaching area, water pressure test district, boiler tube product bore area, product inspection bagging area to finished product from left to right and delivers; In the product inspection bagging area, also be provided with pipe row and use the boiler tube transit zone; Described pipe is arranged with below, boiler tube transit zone the 3rd row and is provided with pipe row transporter, the row of pipe weld zone, pipe row colour attaching area, pipe draining pressure trial zone from right to left; The 4th row is provided with pipe row's sand blasting room, pipe row bagging area, pipe row shipping space from left to right, more than all be provided with rollgang between each operation.
CN2011201419461U 2011-05-06 2011-05-06 High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row Expired - Fee Related CN202114470U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201419461U CN202114470U (en) 2011-05-06 2011-05-06 High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201419461U CN202114470U (en) 2011-05-06 2011-05-06 High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row

Publications (1)

Publication Number Publication Date
CN202114470U true CN202114470U (en) 2012-01-18

Family

ID=45455568

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201419461U Expired - Fee Related CN202114470U (en) 2011-05-06 2011-05-06 High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row

Country Status (1)

Country Link
CN (1) CN202114470U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642006A (en) * 2012-04-16 2012-08-22 如东宏信机械制造有限公司 Pneumatic stay tube vehicle
CN104786067A (en) * 2015-04-20 2015-07-22 骏马石油装备制造有限公司 Heat exchanger production line
CN107363563A (en) * 2017-09-08 2017-11-21 中车唐山机车车辆有限公司 Automation stock production line
CN109963681A (en) * 2016-10-27 2019-07-02 通用电气公司 For manufacturing the system, method and equipment of boiler tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642006A (en) * 2012-04-16 2012-08-22 如东宏信机械制造有限公司 Pneumatic stay tube vehicle
CN104786067A (en) * 2015-04-20 2015-07-22 骏马石油装备制造有限公司 Heat exchanger production line
CN109963681A (en) * 2016-10-27 2019-07-02 通用电气公司 For manufacturing the system, method and equipment of boiler tube
US11141775B2 (en) * 2016-10-27 2021-10-12 General Electric Technology Gmbh System, method and apparatus for manufacturing boiler tubes
CN107363563A (en) * 2017-09-08 2017-11-21 中车唐山机车车辆有限公司 Automation stock production line
CN107363563B (en) * 2017-09-08 2020-01-10 中车唐山机车车辆有限公司 Automatic material preparation production line

Similar Documents

Publication Publication Date Title
US20120279031A1 (en) Production line for high temperature alloy furnace pipes and piperows used in petrochemical industry
CN202114470U (en) High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row
CN103170712B (en) A kind of tube socket fillet weld reheat crack prevention method
CN106064286B (en) A kind of the broken teeth bracing means and method for repairing and mending of huge gear
CN110052728B (en) Online welding repair method for end cover cracking of large ball mill
CN105171330B (en) Chilling ring of gasifying furnace restorative procedure
CN103492636A (en) Method for producing a yankee cylinder
CN102430893A (en) Manufacturing method of small-inner-diameter hollow spindle
CN101564802A (en) Field welding and stabilizing heat treatment method of thick-wall pipeline
CN108020083A (en) A kind of large-scale rotary hearth furnace installation method
CN101881333A (en) Seamless knitted sealing ring, production method thereof and special equipment thereof
CN107553072A (en) A kind of tube-making process method and tubulation apparatus
CN102554550A (en) Method for rapidly repairing defects of finned tube module of waste heat boiler
CN105290707A (en) Repeatable repair method for impeller of agitation tank
CN105081541B (en) A kind of method that use electric resistance welding produces half metallurgy type metal composite pipe
CN107419262A (en) Universal express pump gear shaft terminal odontotripsis or crackle laser melting coating restorative procedure
CN102764988B (en) High temperature resistant alloy furnace tube and machining production line of tube bundle
CN103624490A (en) Method for machining bimetal composite single-weld-seam bend
CN105349992B (en) It is a kind of to be directed to aircraft vertical pin, the laser melting coating restorative procedure of bolt piece surface
CN107964573A (en) A kind of medium blast furnace furnace shell Replacement procedure
CN202114404U (en) Welding production line for alloy furnace tubes and tube bundles
CN114918633B (en) Method for repairing water leakage at root parts of copper pipe and copper cooling wall
CN112496670A (en) Non-welding repair process for casting cracks
CN102500886A (en) High-strength nickel-iron-chromium alloy and chromium-nickel stainless steel plate welding method and application to preparation of polysilicon cold hydrogenation reactors
CN202114257U (en) Casting production line for high temperature-resistant alloy furnace tubes and tube bundles for petrifying purpose

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Tuopu Industry (Jiangsu) Co., Ltd.

Assignor: Pu Jie

Contract record no.: 2014320000595

Denomination of utility model: High-temperature-resistant alloy furnace tube for petrochemical industry and production line of tube row

Granted publication date: 20120118

License type: Exclusive License

Record date: 20140721

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20160506

CF01 Termination of patent right due to non-payment of annual fee