CN102323028B - Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow - Google Patents
Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow Download PDFInfo
- Publication number
- CN102323028B CN102323028B CN 201110232621 CN201110232621A CN102323028B CN 102323028 B CN102323028 B CN 102323028B CN 201110232621 CN201110232621 CN 201110232621 CN 201110232621 A CN201110232621 A CN 201110232621A CN 102323028 B CN102323028 B CN 102323028B
- Authority
- CN
- China
- Prior art keywords
- module
- deep
- sea
- sliding block
- standpipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention is suitable for the field of ocean engineering and provides a deep-sea riser segmented model forward flow forced vibration experimental device under the action of uniform flow. The deep-sea riser segmented model forward flow forced vibration experimental device comprises a deep-sea riser module, end part false body modules, a fixing module, a sliding module and a measurement analysis and control module, wherein the two ends of the deep-sea riser module are connected with the end part false body modules respectively; the fixing module is connected with the end part false body modules and the sliding module respectively; the sliding module is fixedly connected with the bottom of one end of a trailer truck; and the measurement analysis and control module is arranged on the trailer truck, and is connected with the deep-sea riser module, the end part false body modules and the sliding module respectively. The invention aims to solve the problems that the conventional experimental device can only be used for simulating sea conditions with low Reynolds numbers and boundary treatment is not performed on riser segments; a riser model with an appropriate slenderness ratio is selected, so that the practical Reynolds number of 106 can be reached, and the scale effect is avoided effectively; and a flow field is simulated through false bodies, so that the problem of boundary effects on both sides of the model is solved.
Description
Technical field
The invention belongs to the oceanographic engineering field, relate in particular to the deep-sea standpipe segmented model following current forced vibration experimental provision under a kind of equal uniform flow effect.
Background technology
Standpipe in the actual marine environment is the elongated flexible structure, can produce vortex-induced vibration under the effect of ocean current.This vibration is that self-excitation produces for whole standpipe; If but considered that each joint can be considered as the segmentation of rigid body, so this vibration but would be forced oscillation.Because each fraction of compliant riser can be seen the rigid cylindrical body as, so want to further investigate the vortex-induced vibration characteristic of elongated flexible marine riser under the ocean current effect of true environment, can start with from the simple question of microcosmic, namely stressed, move response, the wake flow form etc. of the rigid cylindrical body in the forced oscillation under the uniform incoming flow effect be studied.
The paper that Ramnarayan Gopalkrishnan delivered at MIT in 1993 " Vortex-Introduced Forces on Oscillating Bluff Cylinders " (the stressed research of the vortex-induced vibration of cylinder) is about rigidity pipe fitting vortex-induced vibration experimental study, it has the following disadvantages: 1, test is too elongated with the standpipe segmentation, getting the segmentation diameter as someone once is 2.54cm, length is 60cm, this just causes its device can only simulate vortex-induced vibration under the low reynolds number, can not simulate the high reynolds number state under the true sea situation, occur scale effect easily; 2, the border is not effectively handled, the model boundary effect can influence experimental result.
Summary of the invention
The present invention is directed to the technical matters that exists in the above-mentioned prior art, a kind of deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down is provided, being intended to solve existing test unit can only simulate than the low reynolds number sea situation, and the standpipe segmentation is not carried out the problem of boundary treatment, avoided scale effect and boundary effect to the influence of experimental result.
The present invention is achieved by the following technical solutions, deep-sea standpipe segmented model following current forced vibration experimental provision under a kind of equal uniform flow effect, mainly by deep-sea standpipe module, first end prosthese module, the second end prosthese module, first stuck-module, second stuck-module, first sliding block, second sliding block and Measurement and analysis control module are formed, wherein: standpipe module two ends, deep-sea are connected with the second end prosthese module with first end prosthese module respectively, first stuck-module is connected with first sliding block with the first end prosthese respectively, second stuck-module is connected with second sliding block with the second end prosthese respectively, first sliding block is fixedlyed connected with trailer bottom one end, second sliding block is fixedlyed connected with the trailer bottom other end, the Measurement and analysis control module is arranged on the trailer, respectively first end prosthese module, the second end prosthese module, first sliding block, second sliding block is connected.
Described deep-sea standpipe module comprises: two standpipe fixture splices and deep-sea riser model, wherein: riser model two ends, deep-sea are connected with two standpipe fixture splices respectively, and two standpipe fixture splices are connected with the second end prosthese module with first end prosthese module respectively.
Described first end prosthese module comprises: the prosthese urceolus, three component instrument, three component instrument fixed heads, voussoir, bearing, adjust assembly, fixed head, backing plate, flow-stopping plate, wherein: prosthese urceolus and flow-stopping plate are fixed, three component instrument respectively with deep-sea standpipe module in fixture splice link to each other with three component instrument fixed heads, three component instrument fixed heads, one end is connected with three component instrument, the other end and voussoir are affixed, voussoir runs through flow-stopping plate, and it is inboard affixed with bearing and flow-stopping plate at flow-stopping plate, the voussoir of flow-stopping plate opposite side is connected with backing plate, fixed head is affixed by backing plate and voussoir, and it is affixed with fixed head and first stuck-module respectively to adjust assembly; Described the second end prosthese module becomes mirror image with first end prosthese module.
Described first sliding block comprises: Power Component, flange apparatus, slide block, lead chain, sliding rail, bracing frame, wherein: Power Component links to each other with sliding rail by flange apparatus, its turning axle is connected to slide block by leading chain, slide block is slidably supported on the sliding rail, and with the first stuck-module Joint, bracing frame upper end is affixed with trailer, and lower end and sliding rail are affixed, and sliding rail is parallel at the bottom of the towing basin pond and is vertical with first stuck-module; Described second sliding block becomes mirror image with first sliding block.
Described first stuck-module is made up of radome fairing, vertical fixing plate and vertical fixing piece; Described vertical fixing plate is installed on the slide block in first sliding block, is slidingly fitted with the vertical fixing piece on it, and both sides are equipped with radome fairing; Adjustment assembly in described vertical fixing piece and the first end prosthese module is affixed.Described second stuck-module becomes mirror image with first stuck-module.
Described Measurement and analysis control module comprises: data acquisition unit, motion controller and display, and wherein: the input end of data acquisition unit is connected with two three component instrument in above-mentioned first and second end prosthese module, and its output terminal is connected with display; Motion controller has two output ports, and two cover Power Components in motion control output port and above-mentioned first and second sliding block are connected, and the image display port is connected with display.
Described deep-sea riser model diameter is 250mm, and length is 3m.
Advantage and good effect that the present invention has are:
The present invention adopts special end prosthetic appliance, first and second end prosthese module wherein is fixed in the vertical fixing piece, separate with mid-module, the riser model two ends are directly fixed on the vertical fixing piece by dynamometer, so the data that dynamometer measures are power actual suffered on the mid-module, and first and second end prosthese module has played the effect of making the simulation flow field, but measurement mechanism is not directly exerted an influence, and has solved the problem that boundary effect appears in model both sides in the experiment.Adopt technical solution of the present invention, select the riser model of suitable slenderness ratio, in normal trailer movement velocity scope, operating condition of test can reach real Reynolds number 10
6Scope has effectively been avoided the problem of scale effect and both sides boundary effect.
Description of drawings
Fig. 1 is the scheme of installation of experimental provision on trailer that the embodiment of the invention provides.
Fig. 2 is the structural representation of the experimental provision that provides of the embodiment of the invention.
Fig. 3 is the vertical view of the experimental provision that provides of the embodiment of the invention.
Fig. 4 is the structural representation of the deep-sea standpipe module that provides of the embodiment of the invention.
Fig. 5 is the structural representation of the end prosthese module that provides of the embodiment of the invention.
Fig. 6 is the structural representation of the stuck-module that provides of the embodiment of the invention.
Fig. 7 is the side view of the stuck-module that provides of the embodiment of the invention.
Fig. 8 is the structural representation of the sliding block that provides of the embodiment of the invention.
Fig. 9 is the vertical view of the sliding block that provides of the embodiment of the invention.
Figure 10 embodiment of the invention provides the structured flowchart of Measurement and analysis control module.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As Fig. 1, Fig. 2 and shown in Figure 3, this device comprises: deep-sea standpipe module 1, first end prosthese module 2, the second end prosthese module 3, first stuck-module 5, second stuck-module 4, first sliding block 6, second sliding block 7 and Measurement and analysis control module 8, wherein: standpipe module 1 two ends, deep-sea are connected with the second end prosthese module 3 with first end prosthese module 2 respectively, first stuck-module 5 is connected with first sliding block 6 with first end prosthese module 2 respectively, second stuck-module 4 is connected with second sliding block 7 with the second end prosthese module 3 respectively, first sliding block 6 is fixedlyed connected also with trailer 9 one bottom portions, second sliding block 7 is fixedlyed connected with trailer 9 other ends bottom, Measurement and analysis control module 8 is arranged on the trailer 9, respectively with first end prosthese module 2, the second end prosthese module 3, first sliding block 6, second sliding block 7 is connected.Trailer 9 moves ahead with certain speed along continuous straight runs in towing basin 10.
As Fig. 2 and shown in Figure 4, described deep-sea standpipe module 1 comprises: two standpipe fixture splices 12,13 and deep-sea riser model 11, wherein: riser model 11 two ends in deep-sea are connected with two standpipe fixture splices 12,13 respectively, and two standpipe fixture splices 12,13 are connected with the second end prosthese module 3 with first end prosthese module 2 respectively.Standpipe fixture splice 12,13 is fixedly connected, and it is loosening to avoid riser model 11 to take place when experiment.
As Fig. 2 and shown in Figure 5, described first end prosthese module 2 comprises: prosthese urceolus 20, three component instrument 21, three component instrument fixed heads 22, voussoir 23, bearing 24, adjust assembly 26, fixed head 27, backing plate 28, flow-stopping plate 25, wherein: prosthese urceolus 20 is fixing with flow-stopping plate 25, three component instrument 21 respectively with deep-sea standpipe module 1 in fixture splice 12,13 link to each other with three component instrument fixed heads 22, three component instrument fixed heads, 22 1 ends are connected with three component instrument 21, the other end and voussoir 23 are affixed, voussoir 23 runs through flow-stopping plate 25, and it is inboard affixed with bearing 24 and flow-stopping plate 25 at flow-stopping plate 25, the voussoir 23 of flow-stopping plate 25 opposite sides is connected with backing plate 28, fixed head 27 is affixed by backing plate 28 and voussoir 23, and it is affixed with fixed head 27 and first stuck-module 5 respectively to adjust assembly 26.The second end prosthese module 3 is mirror image with first end prosthese module 2, does not repeat them here.
As Fig. 2, Fig. 8 and shown in Figure 9, described first sliding block 6 comprises: Power Component 61, flange apparatus 62, slide block 64, lead chain 66, sliding rail 65, bracing frame 63, wherein: Power Component 61 links to each other with sliding rail 65 by flange apparatus 61, its turning axle is connected to slide block 64 by leading chain 66, slide block 64 is slidably supported on the sliding rail 65, and with first stuck-module, 5 Joints, bracing frame 63 upper ends and trailer 9 are affixed, lower end and sliding rail 65 are affixed, and sliding rail 65 is parallel at the bottom of towing basin 10 ponds and is vertical with first stuck-module 5.Second sliding block 7 and first sliding block 6 are mirror image, do not repeat them here.
As Fig. 2, Fig. 6 and shown in Figure 7, first stuck-module 5 is made up of radome fairing 50, vertical fixing plate 51 and vertical fixing piece 52; Described vertical fixing plate 51 is installed on the slide block 64 in first sliding block 5, is slidingly fitted with vertical fixing piece 52 on it, and both sides are equipped with radome fairing 50; Described vertical fixing piece 52 is affixed with the adjustment assembly 26 in the first end prosthese module 2.Described second stuck-module 4 and 5 one-tenth mirror image of first stuck-module do not repeat them here.
As shown in figure 10, described Measurement and analysis control module 8 comprises: data acquisition unit 81, motion controller 82 and display 83, wherein: two three component instrument 21 in above-mentioned first and second end prosthese module 2,3 of the input end of data acquisition unit 81 are wanted to connect, and its output terminal is connected with display 83; Motion controller 82 has two output ports, and two cover Power Components 61 in motion control output port and above-mentioned first and second sliding block 6,7 are connected, and the image display port is connected with display 83.
In the present embodiment, the desirable 250mm of deep-sea riser model 11 diameters, the desirable 3m of length, so its slenderness ratio has reached 1/12, and in the proper motion velocity range of trailer 9, operating condition of test can reach real Reynolds number 10
6Scope has effectively been avoided scale effect.
The principle of work of this device:
During test, send movement instruction by the motion controller 82 in the Measurement and analysis control module 8 to Power Component 61 and trailer 9: trailer 9 moves ahead with certain speed along continuous straight runs in towing basin 10, the acquisition relative velocity advances in hydrostatic, with the situation that simulation deep-sea riser model 11 is statically placed in the uniform incoming flow, trailer 9 speed should cooperate the Reynolds number under the actual sea situation rationally to choose according to the size of deep-sea riser model 11; And Power Component 61 drive deep-sea standpipe modules 1 are done double vibrations along downbeam at sliding rail 65 with amplitude and the frequency set, with the situation of simulation local segmentation forced vibration.In the process of the test, three component instrument 21 in the prosthese module of end are measured the stressed size of deep-sea riser model 11 in experimentation, and numerical value is transferred to data acquisition unit 81 in the Measurement and analysis control module 8, data acquisition unit 81 and then transfer data to display 83 and be shown as viewdata.Another effect of display 83 is exactly the steering order that shows that motion controller 82 sends.
This device adopts special end prosthetic appliance, first and second end prosthese module 2,3 wherein is fixed in vertical fixing piece 52, separate with riser model 11, riser model 11 two ends are directly fixed on vertical fixing piece 52 by three component instrument 21, so the data that three component instrument 21 measure are power actual suffered on the riser model 11, and first and second end prosthese module 2,3 has played the effect of making the simulation flow field, but measurement mechanism is not directly exerted an influence, can effectively solve the problem that boundary effect appears in experiment neutral tube model 11 both sides.Deep-sea riser model 11 diameters that the present invention adopts can reach 250mm, and length can reach 3m, and slenderness ratio has reached 1/12, and so in normal trailer movement velocity scope, operating condition of test can reach real Reynolds number 10
6Scope has effectively been avoided scale effect.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down, it is characterized in that, described device is mainly by deep-sea standpipe module, first end prosthese module, the second end prosthese module, first stuck-module, second stuck-module, first sliding block, second sliding block and Measurement and analysis control module are formed, wherein: standpipe module two ends, deep-sea are connected with the second end prosthese module with first end prosthese module respectively, first stuck-module is connected with first sliding block with first end prosthese module respectively, second stuck-module is connected with second sliding block with the second end prosthese module respectively, first sliding block is fixedlyed connected with trailer bottom one end, second sliding block is fixedlyed connected with the trailer bottom other end, the Measurement and analysis control module is arranged on the trailer, respectively with first end prosthese module, the second end prosthese module, first sliding block, second sliding block is connected;
Described deep-sea standpipe module comprises: two standpipe fixture splices and deep-sea riser model, wherein: riser model two ends, deep-sea are connected with two standpipe fixture splices respectively, and two standpipe fixture splices are connected with the second end prosthese module with first end prosthese module respectively;
Described first end prosthese module comprises: the prosthese urceolus, three component instrument, three component instrument fixed heads, voussoir, bearing, adjust assembly, fixed head, backing plate, flow-stopping plate, wherein: prosthese urceolus and flow-stopping plate are fixed, three component instrument respectively with deep-sea standpipe module in the standpipe fixture splice link to each other with three component instrument fixed heads, three component instrument fixed heads, one end is connected with three component instrument, the other end and voussoir are affixed, voussoir runs through flow-stopping plate, and it is inboard affixed with bearing and flow-stopping plate at flow-stopping plate, the voussoir of flow-stopping plate opposite side is connected with backing plate, fixed head is affixed by backing plate and voussoir, and it is affixed with fixed head and first stuck-module respectively to adjust assembly; Described the second end prosthese module becomes mirror image with first end prosthese module.
2. the deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down as claimed in claim 1, it is characterized in that, described first sliding block comprises: Power Component, flange apparatus, slide block, lead chain, sliding rail, bracing frame, wherein: Power Component links to each other with sliding rail by flange apparatus, its turning axle is connected to slide block by leading chain, slide block is slidably supported on the sliding rail, and with the first stuck-module Joint, the bracing frame upper end is affixed with the trailer bottom, lower end and sliding rail are affixed, and sliding rail is parallel at the bottom of the towing basin pond and is vertical with first stuck-module; Described second sliding block becomes mirror image with first sliding block.
3. the deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down as claimed in claim 2 is characterized in that described first stuck-module is made up of radome fairing, vertical fixing plate and vertical fixing piece; Described vertical fixing plate is installed on the slide block in first sliding block, is slidingly fitted with the vertical fixing piece on it, and both sides are equipped with radome fairing; Adjustment assembly in described vertical fixing piece and the first end prosthese module is affixed; Described second stuck-module becomes mirror image with first stuck-module.
4. the deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down as claimed in claim 3, it is characterized in that, described Measurement and analysis control module comprises: data acquisition unit, motion controller and display, wherein: the input end of data acquisition unit is connected with two three component instrument in above-mentioned first and second end prosthese module, and its output terminal is connected with display; Motion controller has two output ports, be respectively: motion control output port and image display port, wherein, two cover Power Components in motion control output port and above-mentioned first and second sliding block are connected, and the image display port is connected with display.
5. as arbitrary described deep-sea standpipe segmented model following current forced vibration experimental provision that evenly flows down in the claim 2 to 4, it is characterized in that described deep-sea riser model diameter is 250mm, length is 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110232621 CN102323028B (en) | 2011-08-15 | 2011-08-15 | Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110232621 CN102323028B (en) | 2011-08-15 | 2011-08-15 | Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102323028A CN102323028A (en) | 2012-01-18 |
| CN102323028B true CN102323028B (en) | 2013-09-25 |
Family
ID=45450817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110232621 Active CN102323028B (en) | 2011-08-15 | 2011-08-15 | Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102323028B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108569B (en) * | 2019-04-04 | 2020-07-28 | 上海交通大学 | Test simulation device of conduit soil system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089578A (en) * | 2007-07-12 | 2007-12-19 | 上海交通大学 | Vortex vibration testing device for flexible pipe mould vertical in towing pool |
| CN101666703A (en) * | 2009-09-04 | 2010-03-10 | 上海交通大学 | Forced reciprocating movement device of ocean structure |
| CN102147321A (en) * | 2011-01-12 | 2011-08-10 | 中国海洋石油总公司 | Uniform flow vortex-induced vibration simulation tester for seabed pipeline |
-
2011
- 2011-08-15 CN CN 201110232621 patent/CN102323028B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089578A (en) * | 2007-07-12 | 2007-12-19 | 上海交通大学 | Vortex vibration testing device for flexible pipe mould vertical in towing pool |
| CN101666703A (en) * | 2009-09-04 | 2010-03-10 | 上海交通大学 | Forced reciprocating movement device of ocean structure |
| CN102147321A (en) * | 2011-01-12 | 2011-08-10 | 中国海洋石油总公司 | Uniform flow vortex-induced vibration simulation tester for seabed pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102323028A (en) | 2012-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323030B (en) | Deep-sea riser segmented model vertical flow forced vibration experimental device under action of uniform flow | |
| CN102313638A (en) | Bidirectional forced vibration experimental apparatus for deep sea riser segment model under action of uniform flow | |
| CN102359857A (en) | Deep sea standpipe segment model bidirectional forcing vibration experimental apparatus under effect of oblique uniform flow | |
| CN102323031B (en) | Deep-sea pipeline segmented model bidirectional forced vibration experimental device under action of uniform flow | |
| CN108918080B (en) | Propeller wake field measurement system under multiplex condition | |
| CN102359855B (en) | Forced vibration experiment facility for uniform down-flowing incoming flow of deep sea pipeline sectional model | |
| CN102967429B (en) | Device for simulating bidirectional self-oscillation under mutual interference of two stand column models under uniform flow | |
| CN102147321A (en) | Uniform flow vortex-induced vibration simulation tester for seabed pipeline | |
| CN103076153A (en) | Resistance testing device for cable-towed ship model | |
| CN102410918A (en) | Vortex-induced vibration simulation test device for deep sea riser model with movable top end under uniform flow | |
| CN102305697B (en) | Vortex-induced vibration test device for movable deep sea vertical pipe array model at lower top end of uniform flow | |
| CN104406753A (en) | Dynamic response testing device for deep-sea elongated vertical pipe under vertical forced oscillation | |
| CN102323028B (en) | Deep-sea riser segmented model forward flow forced vibration experimental device under action of uniform flow | |
| CN104458171A (en) | Deep-sea long and thin stand tube power response test device under horizontal forced oscillation state | |
| CN110031169A (en) | Simulate two-tube interference dynamic response experimental provision under oblique uniform flow effect | |
| CN102323032B (en) | Oblique uniform flow deep sea pipeline segment model bidirectional forced vibration experiment apparatus | |
| CN102359856B (en) | Bidirectional forced vibration experimental apparatus of segmented model of FISHFARM float bowl under uniform flow | |
| CN102967437B (en) | Simulate the test unit of the horizontal autovibration of oblique uniform flow deep sea vertical pipe | |
| CN102980732B (en) | The test unit of the horizontal autovibration of simulation uniform flow deep sea vertical pipe | |
| CN102359854B (en) | Horizontal forced vibration experimental device for sectional models of FISHFRAM float bowls flowing down uniformly | |
| CN102313635B (en) | Horizontal forced vibration experimental apparatus for FISHFRAM buoy segment model under action of inclined uniform flow | |
| CN102967428B (en) | Testing device for simulating self-oscillation under mutual interference of two stand column models under uniform flow | |
| CN102967430B (en) | Simulate the test unit of the two-way autovibration of oblique uniform flow deep sea vertical pipe | |
| CN102368050B (en) | Test device and test method for monitoring vortex-induced vibration suppression device | |
| CN102313637A (en) | Bidirectional forced vibration experimental apparatus for FISHFRAM buoy segment model under action of inclined uniform flow |
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 |