CN206247305U - The protection sleeve pipe and high temperature waste hot boiler of waste heat boiler - Google Patents
The protection sleeve pipe and high temperature waste hot boiler of waste heat boiler Download PDFInfo
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- CN206247305U CN206247305U CN201621334701.XU CN201621334701U CN206247305U CN 206247305 U CN206247305 U CN 206247305U CN 201621334701 U CN201621334701 U CN 201621334701U CN 206247305 U CN206247305 U CN 206247305U
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- sleeve pipe
- protection sleeve
- extension diameter
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Abstract
The utility model provides a kind of protection sleeve pipe of waste heat boiler; the protection sleeve pipe includes extension diameter section (1) and dip section (4); interior chamber size of the interior chamber size of the extension diameter section (1) more than the dip section (4); the periphery of the extension diameter section (1) is formed fluted (2), and the extension diameter section (1) is formed fluted (3) with the periphery of the junction of the dip section (4).The utility model additionally provides a kind of high temperature waste hot boiler; the high temperature waste hot boiler includes smoke inlet tube sheet, multiple heat exchanger tubes and multiple protection sleeve pipes; the smoke inlet tube sheet and the heat exchanger tube are connected; there are multiple holes on the smoke inlet tube sheet; wherein; the protection sleeve pipe that the protection sleeve pipe is provided for the utility model, the dip section (4) of each protection sleeve pipe is by the corresponding heat exchanger tube of hole insertion on the smoke inlet tube sheet.The high temperature waste hot boiler that the utility model is provided has the advantages that to change convenient disassembly, good economy performance.
Description
Technical field
The utility model is related to petroleum chemical industry boiler vessel apparatus field, in particular it relates to a kind of waste heat boiler
Protection sleeve pipe and high temperature waste hot boiler.
Background technology
Waste heat boiler is the boiler using the waste heat next life producing steam in industrial processes.It belongs to a kind of high temperature, height
The heat exchanger of pressure.Waste heat boiler is more early for producing some low-pressure steams, the thermal Finite of recovery to be intended only as the one of production
As complementary equipment.With the development of production technology, the parameter of waste heat boiler is gradually stepped up, and waste heat boiler is by production low-pressure steam
Process boilers be changed into production high steam power boiler.The new results of used heat research continue to bring out the new results of research not
It is disconnected to emerge in large numbers to be continued to bring out in waste heat boiler design, manufacture, using the new results of the research in the fields such as, safety management.
In modern industry, the tube side high temperature side medium of waste heat boiler is generally flue gas, process gas etc., its temperature compared with
Height, more at 1000 DEG C or so, what is had has been even up to 1400 DEG C, and the heat-insulated protection of inlet side tube sheet and heat exchanger tube turns into waste heat boiler
The key problem in technology of stove.Because protection sleeve pipe is the key components and parts of the equipment, its performance has a strong impact on equipment safety and makes
Use the life-span.For the tube sheet of hot process gases entrance bobbin carriage, summary bears high pressure, bears swollen between heat exchanger tube and shell again
The thermal (temperature difference) stress effect that swollen difference is produced, while hot process gases are serious to its erosion, condition of work is very harsh.
With the Continued of energy prices, so the requirement to the security and long-term operation of waste heat boiler is increasingly
Height, therefore it is highly desirable to that a kind of performance is more preferable, with low cost, be capable of the composite protective sleeve of long-term operation.Traditional used heat
Boiler's tube-plate ceramic protective sleeve tubular construction adds insulated lining structure using ceramic protective sleeve pipe, this structure by bar for line or
Fixed plate permanent lining, embedded ceramic protective sleeve pipe in lining.This complex structure, ceramic protective sleeve pipe changes inconvenient, and
And it is serious to lining damage during the dismounting of ceramic protective sleeve pipe, or even need to carry out bar for line dismounting, it is possible to tube sheet knot can be damaged
Structure, increased overhaul of the equipments expense, or even because tube plate structure is possible to damage problem occur, it may appear that used after overhaul of the equipments
Safety problem.
Utility model content
The purpose of this utility model is to provide a kind of protection sleeve pipe of waste heat boiler, and the protection sleeve pipe is ensureing effect of heat insulation
In the case of good, it is not welded to connect between whole heat insulation structural and tube sheet, without overall insulated lining structure, with changing dismounting side
Just, the advantages of good economy performance.
To achieve these goals, the utility model provides a kind of protection sleeve pipe of waste heat boiler, and the protection sleeve pipe includes
Extension diameter section and dip section, the interior chamber size of the interior chamber size more than the dip section of the extension diameter section, the periphery of the extension diameter section
Form fluted, the extension diameter section forms fluted with the periphery of the junction of the dip section.
Preferably, the ratio between the depth of the groove of the extension diameter section periphery and wall thickness of the extension diameter section are 0.8-1.5：1, institute
State groove length account for the extension diameter section total length 70-80%.
Preferably, the groove of the extension diameter section periphery along the extension diameter section periphery insertion.
Preferably, the depth of the groove of the junction periphery is the 75-80% of the wall thickness of the dip section.
Preferably, the groove of the junction periphery along the junction periphery insertion.
Preferably, the protection sleeve pipe is porcelain bushing.
Preferably, the ratio between the interior chamber size of the dip section and interior chamber size of the extension diameter section are 1：1.8-2.3.
Preferably, the radial section of the extension diameter section is shaped as regular polygon.
The utility model also provides a kind of high temperature waste hot boiler, and the high temperature waste hot boiler includes smoke inlet tube sheet, multiple
Heat exchanger tube and multiple protection sleeve pipes, the smoke inlet tube sheet and the heat exchanger tube are connected, and have many on the smoke inlet tube sheet
Individual hole, it is characterised in that the protection sleeve pipe that the protection sleeve pipe is provided for the utility model, each described protection sleeve pipe is stretched
Enter section by the corresponding heat exchanger tube of hole insertion on the smoke inlet tube sheet.
Preferably, it is provided with adiabator layer between the dip section and the heat exchanger tube of the protection sleeve pipe.
Preferably, the extension diameter section of multiple protection sleeve pipes is mutually stitched together, and makes the expanding of two neighboring protection sleeve pipe
The groove of section periphery is correspondingly arranged.
Preferably, the junction in the groove and each protection sleeve pipe of the extension diameter section periphery in each protection sleeve pipe
Filler is protected in the groove of periphery filled with high temperature resistant.
By above-mentioned technical proposal, the beneficial effects of the utility model are：
(1) the utility model provide protection sleeve pipe extension diameter section periphery formed groove can with stuffed heat insulated filler,
Ensure that heat-insulating and sealing and good heat-proof quality；
(2) weldless connection between the utility model is provided protection sleeve pipe and tube sheet, reduces in installation and replacing pair
The damage of tube sheet；
(3) the protection sleeve pipe that the utility model is provided need not set overall insulated lining, reduce operating expenses, keep away
The situation of partially or completely insulated lining is exempted to be damaged when protecting sleeve pipe to change and removed, economy is better than traditional structure.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation front view of the protection sleeve pipe that the utility model is provided；
Fig. 2 is the schematic diagram front view of protection sleeve pipe setting in the high temperature waste hot boiler that the utility model is provided；
Fig. 3 is the schematic diagram left view of protection sleeve pipe setting in the high temperature waste hot boiler that the utility model is provided.
Description of reference numerals
1st, extension diameter section 2, extension diameter section peripheral groove
3rd, extension diameter section and dip section junction groove 4, dip section
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
The utility model provides a kind of protection sleeve pipe of waste heat boiler, as shown in figure 1, the protection sleeve pipe includes extension diameter section 1
With dip section 4, the interior chamber size of the interior chamber size more than the dip section 4 of the extension diameter section 1, the periphery shape of the extension diameter section 1
Into fluted 2, the extension diameter section 1 forms fluted 3 with the periphery of the junction of the dip section 4.
According to the utility model, as depicted in figs. 1 and 2, extension diameter section 1 when the protection sleeve pipe is installed in waste heat boiler
Stuffed heat insulated filler is needed in the groove 2 that periphery is formed, when the depth and the extension diameter section 1 of the groove 2 of the periphery of the extension diameter section 1
The ratio between wall thickness be 0.8-1.5：1, when the length of the groove 2 accounts for the 70-80% of the total length of the extension diameter section 1, the expansion
The loading of the thermal insulating filling in groove 2 that the periphery of footpath section 1 is formed can effectively completely cut off high-temperature flue gas and smoke inlet pipe
The direct counter current contact of sheetmetal, and avoid gap of the high-temperature flue gas from the middle of the extension diameter section 1 of two neighboring protection sleeve pipe from passing through.
When in the preferred case, in order that the protection sleeve pipe is installed in waste heat boiler, two neighboring protection sleeve pipe
Gap between extension diameter section 1 can be filled up by thermal insulating filling to greatest extent, further avoid high-temperature flue gas from two neighboring protection
Gap in the middle of the extension diameter section 1 of sleeve pipe passes through, the groove 2 of the periphery of the extension diameter section 1 along the extension diameter section 1 periphery insertion.
According to the utility model, when the protection sleeve pipe is installed in waste heat boiler, the dip section 4 of each protection sleeve pipe is inserted
Enter the hole being correspondingly arranged on smoke inlet tube sheet, stuffed heat insulated filler is needed in the groove 3 of the junction periphery, when described
When the depth of the groove 3 of junction periphery is the 75-80% of wall thickness of the dip section 4, in the groove 3 of the junction periphery
The loading of thermal insulating filling can effectively completely cut off high-temperature flue gas and the smoke inlet direct counter current contact of tube sheet metal.
In the preferred case, when the protection sleeve pipe is installed in waste heat boiler, in order to avoid protective case to greatest extent
The directly contact of corresponding hole edge on the dip section 4 and smoke inlet tube sheet of pipe, the edge of groove 3 of the junction periphery
The periphery insertion of the junction, the groove 3 of the junction periphery can so filled out along the periphery of the junction
Full thermal insulating filling, the effectively direct counter current contact of isolation high-temperature flue gas and smoke inlet tube sheet metal.
According to the utility model, in order to better adapt to high-temperature flue gas and prevent the erosion of high-temperature flue gas, increase protection
The thermal insulation and wear resistance of sleeve pipe, the protection sleeve pipe are preferably porcelain bushing.
According to the utility model, in order that the protection sleeve pipe can effectively compensate for heat exchanger tube and smoke inlet tube sheet gold
The stress produced by thermal expansion difference between category, comprehensive strength and economic factors, the interior chamber size of the dip section 4 with it is described
The ratio between interior chamber size of extension diameter section 1 is preferably 1：1.8-2.3, more preferably 1：2.0-2.2.
According to the utility model, during in order that the protection sleeve pipe being installed in waste heat boiler, two neighboring protection sleeve pipe
Extension diameter section 1 between gap can be filled up by thermal insulating filling to greatest extent, further avoid high-temperature flue gas from two neighboring guarantor
Gap in the middle of the extension diameter section 1 of protecting pipe passes through, and the radial section of the extension diameter section 1 is shaped as regular polygon.
In a kind of preferred embodiment of the present utility model, the radial section of the extension diameter section 1 is shaped as positive six side
Shape.When the protection sleeve pipe is installed in waste heat boiler, each protects the expansion of the extension diameter section 1 and adjacent protection sleeve pipe of sleeve pipe
Footpath 1 tight split of section, the front view of multiple protection sleeve pipes of tight split are as shown in Fig. 2 adjacent two expansions of protection sleeve pipe
Groove 2 in footpath section 1 is correspondingly arranged, and the groove 2 on adjacent two extension diameter sections of protection sleeve pipe 1 mosaic produce between
Thermal insulating filling is filled with gap.The left view of the radial section of multiple protection sleeve pipes of tight split as shown in figure 3, wherein, in
Closely spelled completely with other 6 extension diameter section of protection sleeve pipe 1 sides each side of the extension diameter section 1 of the protection sleeve pipe of the heart
Close, the closely split completely two-by-two of 6 sides of the extension diameter section of protection sleeve pipe 1 of periphery, and 6 protection sleeve pipes of periphery is expanding
The radial section center of area of section 1 is equal with the distance of the radial section center of area of the extension diameter section 1 of the protection sleeve pipe at center, every phase of periphery
The radial section center of area of two adjacent extension diameter sections of protection sleeve pipe 1 is apart from equal.
The utility model additionally provides a kind of high temperature waste hot boiler, and the high temperature waste hot boiler includes smoke inlet tube sheet, many
Individual heat exchanger tube and multiple protection sleeve pipes, the smoke inlet tube sheet and the heat exchanger tube are connected, had on the smoke inlet tube sheet
Multiple holes, the protection sleeve pipe that the protection sleeve pipe in the high temperature waste hot boiler is provided for the utility model, wherein, each described guarantor
The dip section (4) of protecting pipe is inserted in the corresponding heat exchanger tube by the hole on the smoke inlet tube sheet.
According to the utility model, it is preferable that in order to ensure effect of heat insulation, the dip section 4 of the protection sleeve pipe is changed with described
Adiabator layer is provided between heat pipe.There is no particular limitation for the material of the adiabator layer, can generally select resistance to height
The materials such as warm ceramic paper.
According to the utility model, during in order that the protection sleeve pipe being installed in waste heat boiler, two neighboring protection sleeve pipe
Extension diameter section 1 between gap can be filled up by thermal insulating filling to greatest extent, further avoid high-temperature flue gas from two neighboring guarantor
Gap in the middle of the extension diameter section 1 of protecting pipe passes through, and the extension diameter section 1 of multiple protection sleeve pipe is mutually stitched together, and makes adjacent two
The groove 2 of the periphery of extension diameter section 1 of individual protection sleeve pipe is correspondingly arranged.
According to the utility model, in the groove 2 of the periphery of extension diameter section 1 in each protection sleeve pipe and each protection sleeve pipe
Filler is protected filled with high temperature resistant in the groove 3 of the junction periphery, so can effectively completely cut off high-temperature flue gas and cigarette
The direct counter current contact of gas inlet tube sheetmetal, avoid gap of the high-temperature flue gas from the middle of the extension diameter section 1 of two neighboring protection sleeve pipe
By and the dip section 4 and smoke inlet tube sheet that avoid protect sleeve pipe on corresponding hole edge directly contact.
The utility model will be below described in detail by embodiment.
Embodiment 1
A kind of high temperature waste hot boiler that the utility model is provided includes smoke inlet tube sheet, 506 heat exchanger tubes and 506 potteries
Porcelain protects sleeve pipe, wherein, smoke inlet tube sheet and heat exchanger tube are connected, and have 506 holes, adjacent protection on smoke inlet tube sheet
The front view and left view of the set-up mode of sleeve pipe and heat exchanger tube in high temperature waste hot boiler as shown in Figures 2 and 3, described in each
The dip section 4 of sleeve pipe is protected by the corresponding heat exchanger tube of hole insertion on the smoke inlet tube sheet.Such as Fig. 1 and Tu
Shown in 3, each protection sleeve pipe includes extension diameter section 1 and dip section 4, and the interior chamber size of the extension diameter section 1 is 66mm, the dip section
4 interior chamber size is 33mm, and the periphery of the extension diameter section 1 forms fluted 2, the connection of the extension diameter section 1 and the dip section 4
The periphery at place forms fluted 3.Wherein, the radial cross-sectional shape of extension diameter section 1 is regular hexagon, the periphery formation of extension diameter section 1
The depth of groove 2 is 7mm, and extension diameter section 1 is 3mm, extension diameter section 1 with the depth of the groove 3 of the periphery of the junction of the dip section 4
Wall thickness be 6mm, the wall thickness of dip section 4 is 4mm.By the protection sleeve pipe of the utility model offer in giving up that the utility model is provided
When being installed in heat boiler, each protects the tight split of extension diameter section 1 of the extension diameter section 1 and adjacent protection sleeve pipe of sleeve pipe, adjacent
Groove 2 on two extension diameter sections of protection sleeve pipe 1 is correspondingly arranged, and the groove 2 on adjacent two extension diameter sections of protection sleeve pipe 1
The gap that produces of mosaic in the thermal insulating filling that is constituted filled with high-temperature ceramic materials and resin.Multiple guarantors of tight split
The left view of the radial section of protecting pipe as shown in figure 3, wherein, each side of the extension diameter section 1 of the protection sleeve pipe at center and its
The completely tight split in his 6 extension diameter section of protection sleeve pipe 1 sides, 6 sides of the extension diameter section of protection sleeve pipe 1 of periphery
The radial section center of area of closely split completely, and 6 extension diameter sections of protection sleeve pipe 1 of periphery two-by-two and the protection sleeve pipe at center
The distance of the radial section center of area of extension diameter section 1 is equal, the radial section of the extension diameter section 1 of the every adjacent two protection sleeve pipe of periphery
The center of area is apart from equal.As shown in Fig. 2 leaving the gap of 2mm between the dip section 4 and heat exchanger tube of protection sleeve pipe, filled in gap
Refractory ceramics paper, and refractory ceramics paper be wrapped in protection sleeve pipe the tube wall of dip section 4 outside.
By technical scheme described in the utility model, in protection sleeve pipe and smoke inlet tube sheet and protection casing recess every
Hot filler is tightly combined, and thermal resistance works well, and can effectively completely cut off high temperature waste hot boiler high temperature flue gas and smoke inlet pipe
The direct counter current contact of sheetmetal, reduces heat transfer of the high-temperature flue gas to smoke inlet tube sheet metal, reduces smoke inlet tube sheet
The thermal stress numerical value that metal is caused due to gas thermal convection current.Ensure that tube plate structure thermal stress meets standard requirement, and protective case
Groove that the periphery of pipe extension diameter section is formed and extension diameter section is stuffed heat insulated with the groove of the periphery of the junction of the dip section fills out
Material, smoke inlet tube sheet need not weld bar for line, reduce workload, it is to avoid welded on smoke inlet tube sheet to deposit
, make the protection sleeve pipe replacing that the utility model is provided conveniently, be not in that common heat insulation structural need to first be torn open when sleeve pipe is dismantled
Except the situation of lining, operating expenses is reduced, economy is better than traditional structure.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
Possible combination is planted no longer separately to illustrate.
Additionally, can also be combined between a variety of implementation methods of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (12)
1. the protection sleeve pipe of a kind of waste heat boiler, it is characterised in that the protection sleeve pipe includes extension diameter section (1) and dip section (4), institute
State the interior chamber size of the interior chamber size of extension diameter section (1) more than the dip section (4), the periphery of the extension diameter section (1) is formed with recessed
Groove (2), the extension diameter section (1) is formed fluted (3) with the periphery of the junction of the dip section (4).
2. protection sleeve pipe according to claim 1, it is characterised in that the depth of the groove (2) of extension diameter section (1) periphery
It is 0.8-1.5 with the ratio between the wall thickness of the extension diameter section (1)：1, the length of the groove (2) accounts for the total length of the extension diameter section (1)
70-80%.
3. protection sleeve pipe according to claim 1 and 2, it is characterised in that groove (2) edge of extension diameter section (1) periphery
The periphery insertion of the extension diameter section (1).
4. protection sleeve pipe according to claim 1, it is characterised in that the depth of the groove (3) of the junction periphery is
The 75-80% of the wall thickness of the dip section (4).
5. the protection sleeve pipe according to claim 1 or 4, it is characterised in that the groove (3) of the junction periphery is along institute
State the periphery insertion of junction.
6. protection sleeve pipe according to claim 1, it is characterised in that the protection sleeve pipe is porcelain bushing.
7. protection sleeve pipe according to claim 1, it is characterised in that the interior chamber size of the dip section (4) and the expansion
The ratio between the interior chamber size in footpath section (1) is 1：1.8-2.3.
8. the protection sleeve pipe according to claim 1,2,4,6 or 7, it is characterised in that the radial section of the extension diameter section (1)
Be shaped as regular polygon.
9. a kind of high temperature waste hot boiler, the high temperature waste hot boiler includes smoke inlet tube sheet, multiple heat exchanger tubes and multiple protective cases
Pipe, the smoke inlet tube sheet and the heat exchanger tube are connected, and have multiple holes on the smoke inlet tube sheet, it is characterised in that
Protection sleeve pipe of the protection sleeve pipe described in any one in claim 1-8, the dip section (4) of each protection sleeve pipe
By in the corresponding heat exchanger tube of hole insertion on the smoke inlet tube sheet.
10. high temperature waste hot boiler according to claim 9, it is characterised in that the dip section (4) of the protection sleeve pipe and institute
State and be provided with adiabator layer between heat exchanger tube.
11. high temperature waste hot boilers according to claim 10, it is characterised in that extension diameter section (1) phase of multiple protection sleeve pipe
Mutually it is stitched together, and is correspondingly arranged the groove (2) of extension diameter section (1) periphery of two neighboring protection sleeve pipe.
12. high temperature waste hot boilers according to claim 11, it is characterised in that the extension diameter section (1) in each protection sleeve pipe
Protected filled with high temperature resistant in the groove (3) of the junction periphery in the groove (2) of periphery and each protection sleeve pipe
Filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334701.XU CN206247305U (en) | 2016-12-07 | 2016-12-07 | The protection sleeve pipe and high temperature waste hot boiler of waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334701.XU CN206247305U (en) | 2016-12-07 | 2016-12-07 | The protection sleeve pipe and high temperature waste hot boiler of waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206247305U true CN206247305U (en) | 2017-06-13 |
Family
ID=59003885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621334701.XU Active CN206247305U (en) | 2016-12-07 | 2016-12-07 | The protection sleeve pipe and high temperature waste hot boiler of waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206247305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041967A (en) * | 2018-04-25 | 2019-07-23 | 新能能源有限公司 | The second level whirlwind feed back and afterheat utilizing system of high temperature and high pressure flue gas |
| CN110056848A (en) * | 2018-04-23 | 2019-07-26 | 新能能源有限公司 | High temperature and high pressure flue gas afterheat utilizing system |
-
2016
- 2016-12-07 CN CN201621334701.XU patent/CN206247305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056848A (en) * | 2018-04-23 | 2019-07-26 | 新能能源有限公司 | High temperature and high pressure flue gas afterheat utilizing system |
| CN110056848B (en) * | 2018-04-23 | 2024-05-03 | 新能能源有限公司 | High-temperature high-pressure flue gas waste heat utilization system |
| CN110041967A (en) * | 2018-04-25 | 2019-07-23 | 新能能源有限公司 | The second level whirlwind feed back and afterheat utilizing system of high temperature and high pressure flue gas |
| CN110041967B (en) * | 2018-04-25 | 2023-12-22 | 新能能源有限公司 | Secondary cyclone return material and waste heat utilization system for high-temperature and high-pressure flue gas |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: COOEC-ENPAL ENGINEERING Co.,Ltd. Address before: 100010 Hai Yuan building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: COOEC-ENPAL ENGINEERING Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180516 Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: CNOOC PETROCHEMICAL ENGINEERING Co.,Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: COOEC-ENPAL ENGINEERING Co.,Ltd. |