CN201575728U - Heat exchanger of corrugated coil pipe structure with internal and external ducts - Google Patents
Heat exchanger of corrugated coil pipe structure with internal and external ducts Download PDFInfo
- Publication number
- CN201575728U CN201575728U CN2009201105471U CN200920110547U CN201575728U CN 201575728 U CN201575728 U CN 201575728U CN 2009201105471 U CN2009201105471 U CN 2009201105471U CN 200920110547 U CN200920110547 U CN 200920110547U CN 201575728 U CN201575728 U CN 201575728U
- Authority
- CN
- China
- Prior art keywords
- ring sleeve
- heat exchanger
- duct
- bellows
- outer ring
- 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 - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat exchanger of a corrugated coil pipe structure with internal and external ducts, which consists of an inlet, an outlet, a corrugated pipe, a fairing, an inner ring sleeve, an outer ring sleeve, a fan and a bracket. When flowing into the corrugated pipe in the heat exchanger of the utility model from the inlet, a fluid medium to carry out heat exchange forms turbulent flow in the pipe wall of a corrugated structure and carries out heat exchange by the air in the internal and external ducts outside the corrugated pipe wall and the corrugated pipe; the fan exhausts the air in the internal and external ducts; and the fluid medium is discharged from the outlet by screw-type flowing in the corrugated pipe to carry out heat exchange. The heat exchanger has the characteristics of high heat exchange efficiency, simple structure and process, light weight, integration and the like. The temperature of the fluid medium in the coil pipe after carrying out heat exchange is uniform. The heat exchanger can be used for heat exchange of gas, liquid and gas-liquid mixture. When the corrugated pipe adopts a corrosion resistance material, the heat exchanger can be used for heat exchange of the liquid medium with corroson.
Description
Technical field
The utility model relates to a kind of heat exchanger, is specially adapted to the heat radiation or the refrigeration of liquid, gas, gas-liquid mixture, can be used for fields such as chemical industry, building.
Background technology
At present, heat exchanger adopts finned fin mostly, and the arrangement of finned fin mostly is run-in index greatly and arranges, this spread pattern takes up room greatly, and the material of fin is thicker, and weight is big, heat conductivility is poor, and radiating rate is slow, and pipeline is long, bending radius is little, fluid resistance is big, leaks the manufacturing process complexity easily, manufacturing cost is higher, as disclosed heat exchangers such as CN2463756Y.CN2752664Y discloses a kind of radiator with metal dish tubular construction of internal and external threads, its coil arrangement is " mouth " type or " L " type, be provided with the cassette heat exchanger fin between metal tube, in order to improve radiating efficiency, installing radiating fin additional on many employing stainless steel pipe/screwed pipes assembles, but no matter be this coil arrangement heat exchanger or the conventional heat exchanger device of gilled radiator, when being used for some provision for sealing or place, space, place (as cabinet etc.) does not have initiatively air velocity, heat exchanger effectiveness is low, and, then cause fault easily if there is thermally sensitive element in space, place (in cabinet).
Aforementioned structure does not have corrosion resistance usually in addition, and for anticorrosion, more the above-mentioned type heat exchanger adopts and install radiating fin on the stainless steel pipe additional and assemble, or installs pipe in the anticorrosion additional, has influenced radiating efficiency and has needed extrusion process, the manufacturing cost height.As application number is the 02212926.X combined radiator.
Summary of the invention
For addressing the above problem, the utility model proposes a kind of heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, have characteristics such as heat exchanger effectiveness height, structural manufacturing process be simple, in light weight, integrated, and the temperature of carrying out the fluid media (medium) in the coil pipe after the heat exchange is even, can be used for the heat exchange of gas, liquid, gas-liquid mixed material.And when corrugated pipe coil adopted resistant material, this heat exchanger can be used for having heat exchange for corrosive liquid media.
A kind of heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct described in the utility model can be changed each other according to different demands, and fluid medium and air carry out heat exchange to reach the purposes of heating or refrigeration.
A kind of heat exchanger described in the utility model with corrugated pipe coil structure of provided with internal duct and external duct, by import, outlet, bellows, radome fairing, inner ring sleeve tube, outer ring sleeve, fan, support are formed.
Described bellows, radome fairing, inner ring sleeve tube, outer ring sleeve, fan, support all place in the outer ring sleeve; The bellows inner and outer wall is uneven corrugated surface; Bellows is by being fixed in the outer wall that stent helix formula on the inner ring sleeve drum outer wall is surrounded on the inner ring sleeve tube, ring duct in the outer wall of inner ring sleeve tube and the space between the bellows form, the space formation outer shroud duct between bellows and the outer ring sleeve; Have import outside on the barrel of ring sleeve and export and be communicated with the sealed at both ends of bellows respectively; Radome fairing has pyramid type streamline structure; Fan is positioned at outer ring sleeve, is higher than the summit of radome fairing; The edge of single radome fairing closely links to each other with the edge of inner ring sleeve tube, forms the cavity with circular cone streamline structure;
The material of described radome fairing and inner ring sleeve tube includes but not limited to heat-conducting medium.
When having two radome fairings, described two radome fairings closely link to each other with the last lower limb of inner ring sleeve tube respectively, form the closed cavity that two ends have the circular cone streamline structure.
As preferably, the axis of described inner ring sleeve tube and outer ring sleeve is on same straight line.
As preferably, when number of fans was one, fan was positioned at the residing end of outer ring sleeve inner outlet; When number of fans is two or more, adopt the structure of serial or parallel connection to be positioned over the residing end of outer ring sleeve inner outlet.
When number of fans is two or more, can also adopts the structure of serial or parallel connection to be positioned over the interior two ends of outer ring sleeve respectively, and keep the wind direction unanimity.
As preferably, when single fan or a plurality of fan adopted cascaded structure, the axis of fan axis and outer ring sleeve was on same straight line.
A kind of heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, its working method is: when the fluid media (medium) of pending heat exchange flows into bellows by import, in having the tube wall of ripple struction, form turbulent flow, carry out heat exchange by the tube wall of bellows and the air in the provided with internal duct and external duct outside the bellows, fan drains into the air in the provided with internal duct and external duct outside the outer ring sleeve, and fluid media (medium) is by discharging from outlet after the spiral mobile heat exchange in bellows.
When this heat exchanger was used to have the heat exchange of corrosive fluid media (medium) and air, described import, outlet had the anticorrosion inwall, and the material of described bellows has corrosion resistance.Described import, outlet inwall material include but not limited to stainless steel or carbon steel, and the material of described bellows includes but not limited to stainless steel or carbon steel.
The utility model utilizes fan and inner ring sleeve tube, the interior air of the outer ring sleeve of radome fairing acceleration to flow, the air in the provided with internal duct and external duct after the discharge heat exchange, and the structure of radome fairing makes the interior thermal convection current of duct more smooth, and heat dispersion is better.Make the structure of this radiator have integrated and modular characteristics simultaneously, be convenient to install and carry.
Compare with traditional liquid heat exchanger with heat radiating fin structure, technical solutions of the utility model have following beneficial effect: because bellows is a thin-wall corrugated tube, bellows has easy-formation, flexible characteristics, its tube wall contact area is bigger than normal straight tube, and tube wall is thin, be convenient to heat radiation, this is managed in the shape of a spiral formula and places around the inner ring sleeve tube in addition, fluid media (medium) can not deposit in pipe, bellows chamber is difficult for stopping up, and the ripple struction that inside and outside tube wall had makes the material of flowing through wherein be easy to form turbulent flow, is convenient to Homogeneouslly-radiating.Bellows adopts coil arrangement can increase the density of the heat-exchange tube in the confined space.Utilize fan, inner ring sleeve tube, radome fairing to quicken the interior air of outer ring sleeve and flow, discharge heat-exchanged air, the structure of radome fairing makes thermal convection current more smooth, and heat exchange performance is better.Heat exchanger described in the utility model has that heat conduction is fast, heat exchanger effectiveness is high, simple in structure, low cost of manufacture, characteristics such as integrated moduleization is strong, corrosion-resistant, voltage endurance capability strong, long service life.
Description of drawings
Accompanying drawing 1 is the structural representation of heat exchanger described in the utility model among the embodiment;
Accompanying drawing 2 is the provided with internal duct and external duct schematic diagram of heat converter structure described in the utility model among the embodiment;
Among the figure: 1-import, 2-outlet, 3-bellows, 4-radome fairing, 5-inner ring sleeve tube, the outer ring sleeve of 6-, 7-fan, ring duct in the 8-support, 9-, 10-outer shroud duct.
The specific embodiment
Below in conjunction with drawings and Examples technical solutions of the utility model are described further.
Embodiment 1: the heat radiation that is used for hydrogen-oxygen generator electrolyte with heat exchanger described in the utility model is an example, heat converter structure described in the present embodiment as shown in Figures 1 and 2, a kind of heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, by import (1), outlet (2), bellows (3), radome fairing (4), inner ring sleeve tube (5), outer ring sleeve (6), fan (7), support (8) are formed.
Support (8) is one group of protruding support on the outer wall that is fixed in inner ring sleeve tube (5), is used for fixing bellows (3) and forms coil arrangement (seeing accompanying drawing 2).Bellows (3) is by the spiral outer wall (seeing accompanying drawing 1) that is surrounded on inner ring sleeve tube (5) of support (8), encircle duct (9) between the outer wall of inner ring sleeve tube (5) and bellows (3), forming, described bellows (3), radome fairing (4), inner ring sleeve tube (5), outer ring sleeve (6), fan (7), support (8) all place in the outer ring sleeve (6), form outer shroud duct (10) between bellows (3) and the outer ring sleeve (6).
Bellows (3) two ends are provided with import (1), outlet (2).Described import (1) and outlet (2) are penetrated by the outer wall of outer ring sleeve (6), and with sealed at both ends connection of bellows (3).Import (1), outlet (2) inwall material are stainless steel, and the material of described bellows (3) is a stainless steel.Electrolyte enters bellows by import (1), discharges from outlet (2).Bellows (3) is the thin-wall stainless steel bellows, its inner and outer wall is uneven corrugated surface, the surface that this corrugated rises and falls has increased pipe electrolyte inside and tube wall heat exchange contact area, quickening is to the heat exchange of pipe outer air medium, make electrolyte in bellows (3), produce turbulent flow simultaneously, make its temperature even.
Radome fairing (4) is a pyramid type streamline structure, has adopted two radome fairings in the present embodiment, and described two radome fairings closely link to each other with the last lower limb of inner ring sleeve tube (5) respectively, forms the closed cavity that two ends have the circular cone streamline structure.
The material of described radome fairing (4) and inner ring sleeve tube (5) adopts aluminium.
The axis of described inner ring sleeve tube (5) and outer ring sleeve (6) is on same straight line.
Fan (7) is positioned at outer ring sleeve (6), and outside radome fairing (4) summit, be used for heat-exchanged air in the provided with internal duct and external duct is discharged outside the outer ring sleeve (6), number of fans is one in the present embodiment, fan (7) is positioned at the residing end of outer ring sleeve (6) inner outlet (2), helps making the air in middle electrolyte of bellows (3) and the provided with internal duct and external duct to carry out sufficient heat exchange like this.The axis of fan axis and outer ring sleeve (6) is on same straight line.
This heat exchanger adopts vertical placement in use.Import (1) exports (2) last down.Air enters provided with internal duct and external duct from heat exchanger outer shroud lower cartridge, makes full use of the principle that hot-air makes progress, and hot-air is discharged from the heat exchanger top by fan.Air-flow direction is seen shown in accompanying drawing 1 arrow.
Utilizing fan (7) and inner ring sleeve tube (5), radome fairing (4) to quicken the interior air of outer ring sleeve (6) flows, air in the provided with internal duct and external duct after the discharge heat exchange, according to principles of fluid mechanics, the flowing velocity of the fluid of certain flow and the sectional area of its free air space are inversely proportional in unit interval, when the sectional area of the fluid flow of certain flow reduced, flow rate of fluid increased.Heat exchanger described in the utility model can be considered a cavity, when its unit interval exhaust air rate (air mass flow) is constant when placing the interior fan power of cavity constant, when air-flow enters provided with internal duct and external duct narrow in the heat exchanger, owing to adopt inner ring sleeve tube (5) and radome fairing (4) to take the interior free air space of outer ring sleeve (6), promptly reduced the actual internal area of the interior air of outer ring sleeve (6), the circulation of air diameter of section has been compared little a lot with fan diameter, so air velocity is accelerated in the duct, and direct concentrating at a high speed flow through bellows (3) on every side, the structure of radome fairing (4) makes provided with internal duct and external duct hollow air-flow moving more smooth, and heat dispersion is better.Air velocity is relevant with diameter, inner ring sleeve tube (5) length of fan efficiency, inner ring sleeve tube (5) and outer ring sleeve (6) in the provided with internal duct and external duct, can design according to the actual requirements.
When the electrolyte with gas-liquid mixed state is flowed into bellows (3) in the described heat exchanger by import (1), in having the tube wall of ripple struction, form turbulent flow, carry out heat exchange by the air in the provided with internal duct and external duct outside ripple tube wall and the bellows, fan (7) is discharged the air in the provided with internal duct and external duct, electrolyte reaches the purpose to the electrolyte heat radiation by discharging from outlet (2) after the spiral mobile heat exchange in bellows (3).
Because corrosion resistant stainless steel material has been adopted in bellows (3), import (1), outlet (2), therefore reaches having the heat radiation purpose of corrosive liquid.When the heat exchanger with said structure places in the cabinet of hydrogen-oxygen generator, fan in the outer ring sleeve (6) directly effluxes the heat release air to hydrogen-oxygen generation cabinet, reduced the influence of hot-air, avoided because of the overheated fault that causes in the cabinet to components and parts in the cabinet.
Utilize said structure, measure through 10 times, the temperature of electrolyte stream when the outlet (2) of this heat exchanger is than having reduced by 12.1 degrees centigrade by the temperature-averaging of import (1) when flowing to.
Embodiment 2: being used for air-conditioning equipment with heat exchanger described in the utility model is example, and the structure of heat exchanger is with embodiment 1, and import (1), outlet (2) inwall material are stainless steel, and the material of described bellows (3) is a stainless steel.Bellows (3) in heat exchanger as described in cold-producing medium (as fluorine Lyons etc.) is flowed into by import (1), in having the tube wall of ripple struction, form turbulent flow, carry out heat exchange by the air in the provided with internal duct and external duct outside ripple tube wall and the bellows, the air that fan (7) is good with the cooling in the provided with internal duct and external duct is discharged, cold-producing medium is by discharging from outlet (2) after the spiral mobile heat exchange in bellows (3), reach the purpose to air cooling, the outlet (2) of flowing through this moment is located the temperature that the temperature of cold-producing medium locates than import (1) and is risen to some extent.
Above-described specific descriptions; purpose, technical scheme and beneficial effect to utility model further describe; institute is understood that; the above only is a specific embodiment of the utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. the heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct comprises import (1), outlet (2), bellows (3), radome fairing (4), inner ring sleeve tube (5), outer ring sleeve (6), fan (7), support (8); It is characterized in that described bellows (3), radome fairing (4), inner ring sleeve tube (5), outer ring sleeve (6), fan (7), support (8) all place in the outer ring sleeve (6); Bellows (3) inner and outer wall is uneven corrugated surface; Bellows (3) is by being fixed in the spiral outer wall that is surrounded on inner ring sleeve tube (5) of support (8) on inner ring sleeve tube (5) outer wall, ring duct (9) in space between the outer wall of inner ring sleeve tube (5) and the bellows (3) forms, the space between bellows (3) and the outer ring sleeve (6) forms outer shroud duct (10); Have on the barrel of ring sleeve (6) outside import (1) and outlet (2) respectively with sealed at both ends connection of bellows (3); Radome fairing (4) has pyramid type streamline structure; Fan (7) is positioned at outer ring sleeve (6), is higher than the summit of radome fairing (4); The edge of single radome fairing closely links to each other with the edge of inner ring sleeve tube (5), forms the cavity with circular cone streamline structure.
2. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, it is characterized in that, when having two radome fairings, described two radome fairings closely link to each other with the last lower limb of inner ring sleeve tube (5) respectively, form the closed cavity that two ends have the circular cone streamline structure.
3. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct is characterized in that, the material of described radome fairing and inner ring sleeve tube adopts heat-conducting medium.
4. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct is characterized in that, as preferably, the axis of described inner ring sleeve tube and outer ring sleeve is on same straight line.
5. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct is characterized in that, as preferably, when number of fans was one, fan (7) was positioned at the residing end of outer ring sleeve (6) inner outlet (2); When number of fans is two or more, adopt the structure of serial or parallel connection to be positioned over the residing end of outer ring sleeve (6) inner outlet (2).
6. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, it is characterized in that, when number of fans is two or more, can also adopts the structure of serial or parallel connection to be positioned over the interior two ends of outer ring sleeve (6) respectively, and keep the wind direction unanimity.
7. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct is characterized in that, as preferably, when single fan or a plurality of fan adopted cascaded structure, the axis of fan axis and outer ring sleeve was on same straight line.
8. a kind of according to claim 1 heat exchanger with corrugated pipe coil structure of provided with internal duct and external duct, it is characterized in that, working method is: when the fluid media (medium) that carries out heat exchange flows into bellows (3) by import (1), in having the tube wall of ripple struction, form turbulent flow, carry out heat exchange by the tube wall of bellows (3) and the air in the provided with internal duct and external duct outside the bellows, fan (7) drains into the air in the provided with internal duct and external duct outside the outer ring sleeve (6), and fluid media (medium) is by discharging from outlet (2) after the spiral mobile heat exchange in bellows (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105471U CN201575728U (en) | 2009-07-27 | 2009-07-27 | Heat exchanger of corrugated coil pipe structure with internal and external ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105471U CN201575728U (en) | 2009-07-27 | 2009-07-27 | Heat exchanger of corrugated coil pipe structure with internal and external ducts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575728U true CN201575728U (en) | 2010-09-08 |
Family
ID=42695605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201105471U Expired - Lifetime CN201575728U (en) | 2009-07-27 | 2009-07-27 | Heat exchanger of corrugated coil pipe structure with internal and external ducts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575728U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619944B (en) * | 2009-07-27 | 2012-10-03 | 北京鹤华安吉电子技术研究所 | Heat exchanger with corrugated pipe coil structure provided with internal duct and external duct |
| CN102949237A (en) * | 2011-08-24 | 2013-03-06 | 中国科学院理化技术研究所 | Probe heating device based on liquid metal |
| CN111023132A (en) * | 2019-12-12 | 2020-04-17 | 新昌县三维精工机械有限公司 | Boiler waste heat recovery method and device convenient for connecting multiple devices |
| CN114111121A (en) * | 2021-11-19 | 2022-03-01 | 合肥天鹅制冷科技有限公司 | Coil condenser structure |
-
2009
- 2009-07-27 CN CN2009201105471U patent/CN201575728U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619944B (en) * | 2009-07-27 | 2012-10-03 | 北京鹤华安吉电子技术研究所 | Heat exchanger with corrugated pipe coil structure provided with internal duct and external duct |
| CN102949237A (en) * | 2011-08-24 | 2013-03-06 | 中国科学院理化技术研究所 | Probe heating device based on liquid metal |
| CN102949237B (en) * | 2011-08-24 | 2014-12-31 | 中国科学院理化技术研究所 | Probe heating device based on liquid metal |
| CN111023132A (en) * | 2019-12-12 | 2020-04-17 | 新昌县三维精工机械有限公司 | Boiler waste heat recovery method and device convenient for connecting multiple devices |
| CN114111121A (en) * | 2021-11-19 | 2022-03-01 | 合肥天鹅制冷科技有限公司 | Coil condenser structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101619944B (en) | Heat exchanger with corrugated pipe coil structure provided with internal duct and external duct | |
| CN105289440A (en) | Hydrogen storage reactor and system with fin and spiral coil type heat exchanger coupled | |
| CN201575728U (en) | Heat exchanger of corrugated coil pipe structure with internal and external ducts | |
| CN110542214A (en) | Micro-channel condenser suitable for heat pump water heater | |
| CN110705047B (en) | Design calculation method for winding tube type heat exchanger with baffle plate | |
| CN204881271U (en) | Shell and tube type heat exchanger of interpolation segmentation silk screen | |
| CN208139899U (en) | Heat exchanger and heat-exchange system | |
| CN202281526U (en) | Coil pipe type radiator of cooling tower | |
| CN201555477U (en) | Fluoroplastics tube array shell section combined type heat exchanger | |
| CN217383892U (en) | Heat exchange tube for air heat exchange device | |
| CN109506498B (en) | Tubular ultra-high temperature gas cooler | |
| CN115164630A (en) | Rotary type heat exchange-enhanced phase change heat storage device | |
| CN114739196A (en) | Tower type direct air cooling system | |
| CN210321317U (en) | Heat exchanger assembly and hanging stove | |
| CN208566843U (en) | A kind of solar energy hot blast heating system with air purifier | |
| CN210889228U (en) | Gravity heat pipe type cooling device for wind driven generator | |
| CN208186543U (en) | A kind of fan coil with DNA double helical structure formula coil arrangement | |
| CN208567597U (en) | Double convection current pipe heat exchangers inside and outside one kind | |
| CN205138267U (en) | Novel spiral winding heat exchange of heat pipe | |
| CN208186539U (en) | A kind of fan coil with shunt coil arrangement | |
| CN214746538U (en) | U-shaped tube solar heat collector | |
| CN212006837U (en) | Double-sided high-rib fin tube type heat exchanger | |
| CN208186731U (en) | A kind of fan coil with section section connecting type coil arrangement | |
| CN219319120U (en) | Miniature concentric sleeve evaporator suitable for special equipment | |
| CN2338717Y (en) | Radiator made of aluminium finned tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20090727 |