CN1987326A - Heat exchanger for latent heat recovery - Google Patents
Heat exchanger for latent heat recovery Download PDFInfo
- Publication number
- CN1987326A CN1987326A CNA2006101320229A CN200610132022A CN1987326A CN 1987326 A CN1987326 A CN 1987326A CN A2006101320229 A CNA2006101320229 A CN A2006101320229A CN 200610132022 A CN200610132022 A CN 200610132022A CN 1987326 A CN1987326 A CN 1987326A
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- CN
- China
- Prior art keywords
- endothermic tube
- endothermic
- straight sections
- heat exchanger
- axis direction
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/424—Means comprising outside portions integral with inside portions
- F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Geometry (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
A heat exchanger for latent heat recovery, in the trunk part (40) of flowing the burning exhaust accepts: a plurality of snake crawling-shaped heat absorption pipes (41) with a plurality of straight pipe parts (41a) arranged by equal space on the flowing direction (X axis direction) of the burning exhaust and U-shaped bending parts (41b) for connecting the straight pipe parts on the X axis direction together, a plurality of heat absorption pipes are stacked up on the Z axis direction vertical to the X axis, and the heat absorption pipes adjoining on the Z axis direction are arranged displacement on the X axis direction to improve recovery efficiency of the latent heat. The displacement delta P on the X axis direction of the heat absorption pipes adjoining on the Z axis direction is set to out of 1/2 arranged space P value of the straight pipe parts (41a) of the heat absorption pipes (41) on the X axis direction, the broad portion and the narrow potion of the X axis direction space between the straight pipe parts (41a) of one part of heat absorption pipes (41) adjoining on the Z axis direction and the straight pipe parts (41a) of the other part of the heat absorption pipes (41) are arranged alternately on the X axis direction.
Description
Technical field
The present invention relates to a kind ofly steam in the burning and gas-exhausting is condensed and reclaim the heat exchanger for latent heat recovery of latent heat.
Background technology
In the past, as everyone knows, as this heat exchanger for latent heat recovery, in the trunk that burning and gas-exhausting flows, dispose creep many endothermic tubes of shape of snake, an end and the other end of these endothermic tubes are connected to inflow side set part and outflow side set part, make heated object flow to outflow side set part via these endothermic tubes,, reclaim latent heat (for example opening the 2004-232922 communique) with reference to the spy so that the steam in the burning and gas-exhausting condenses in the outside of endothermic tube from inflow side set part.
To this specifically, if the direction parallel with the flow direction of burning and gas-exhausting is made as X-direction, the width of trunk that will be vertical with X-axis is made as Y direction, to be made as Z-direction with the X-axis direction vertical with Y-axis, endothermic tube then forms: have on X-direction with equidistant configuration and at the snake that Y direction is straight a plurality of straight sections and straight sections that X-direction is the adjacent U-shaped bending joint portion connected to each other shape of creeping.In addition, many endothermic tubes are stacked on Z-direction, and the adjacent endothermic tube of Z-direction disposes on X-direction dislocation ground again each other simultaneously.At this, the adjacent endothermic tube of Z-direction is configured in the magnitude of misalignment on the X-direction each other: 1/2 of the disposition interval of the straight sections of each endothermic tube on X-direction.Thus, each straight sections of each straight sections of the adjacent side's of Z-direction endothermic tube and the opposing party's endothermic tube then is uniformly-spaced and alternately to arrange the ground configuration on X-direction.
In addition, for improving the organic efficiency of latent heat, the mobile turbulent flow (sinuous flow Turbulence) that is of burning and gas-exhausting is changed, so that do not produce the retention layer of burning and gas-exhausting at the outer surface of endothermic tube, in addition, the mixing between the part (discharge portion wets) of the burning and gas-exhausting that lags behind of condensing of the part (dried discharge portion) of the burning and gas-exhausting after also must promoting steam to condense to finish and steam, even so that in the part of the endothermic tube that is positioned at burning and gas-exhausting flow direction downstream, steam also can be condensed effectively.At this, if the straight sections of endothermic tube is configured to alternately arrange shape, flowing of burning and gas-exhausting then can be to a certain extent by turbulent flowization.Yet, the shape even the straight sections of endothermic tube is arranged alternately, but if in X-direction with alignment arrangements uniformly-spaced, it is stable that the flowing of burning and gas-exhausting also just correspondingly presents.Thus, dried discharge portion is not easy fully to mix with wet discharge portion, thereby causes the organic efficiency of this latent heat that certain limit is also just arranged.
Summary of the invention
The present invention is its problem so that a kind of heat exchanger for latent heat recovery that mixes with the organic efficiency that can improve latent heat of dried discharge portion and wet discharge portion that promotes to be provided in view of the above-mentioned problems.
For solving above-mentioned problem, heat exchanger for latent heat recovery of the present invention, the direction parallel with the flow direction of burning and gas-exhausting is made as X-direction, the width of trunk that will be vertical with X-axis is made as Y direction, to be made as Z-direction with the X-axis direction vertical with Y-axis, in the trunk that burning and gas-exhausting flows, contain creep many endothermic tubes of shape of snake, this endothermic tube has: be straight a plurality of straight sections with equidistant configuration and in Y direction on X-direction, the U-shaped bending joint portion connected to each other with the straight sections that X-direction is adjacent, an end and the other end of these endothermic tubes are connected to inflow side set part and outflow side set part, make and be heated fluid and flow to outflow side set part via these endothermic tubes from inflow side set part, so that the steam in the burning and gas-exhausting condenses in the outside of endothermic tube, thereby recovery latent heat, stacked many endothermic tubes on Z-direction, and endothermic tube adjacent on the Z-direction is each other again in X-direction dislocation ground configuration, this heat exchanger for latent heat recovery is characterised in that, endothermic tube adjacent on the Z-direction is set in the magnitude of misalignment on the X-direction each other: than in the little scope of the disposition interval of straight sections on X-direction of each endothermic tube and for this disposition interval 1/2 beyond value.
According to the present invention, the part that the X-direction on the Z-direction between the straight sections of the straight sections of an adjacent side's endothermic tube and the opposing party's endothermic tube narrows down at interval (narrow compartment) is alternately to arrange on X-direction with the part (wide interval part) that broadens.And the flow velocity of burning and gas-exhausting accelerates at narrow compartment, then becomes slowly in wide interval part, and according to this change in flow, burning and gas-exhausting partly spreads at wide interval, thereby promotes mixing of dried discharge portion and wet discharge portion.Its result, even in the part of the endothermic tube that is positioned at position, burning and gas-exhausting flow direction downstream, steam also can be condensed effectively, thereby has improved the organic efficiency of latent heat.
In addition, part is respectively gathered by what each open-work that forms was connected in inflow side and outflow side in each end of an end of many endothermic tubes and the other end on the side plate of trunk.And in case the gap turn narrow between each end of these endothermic tubes, the gap that then is formed between the open-work on the side plate also narrows down, and causes the insufficient strength of side plate.This occasion can consider to reduce the aperture of open-work, increases the gap between the open-work.Yet, like this, must impose: with the crowded forging and pressing processing of each end diameter reducing of endothermic tube, can cause cost to improve thus corresponding to open-work.
If consider this problem, then preferably that Z-direction is adjacent endothermic tube is set in the magnitude of misalignment on the X-direction each other: than 1/2 of the disposition interval of straight sections on X-direction of each endothermic tube big value.In view of the above, the gap between each end of many endothermic tubes becomes big.Thus, even need not reduce to be formed on the aperture of the open-work on the side plate of trunk, also the gap between the open-work can be guaranteed in the sort of roomy degree that can not produce the side plate insufficient strength.Therefore, needn't impose the crowded forging and pressing processing of undergauge to each end of endothermic tube, more favourable aspect cost like this.
In addition, the adjacent endothermic tube of Z-direction each other in the magnitude of misalignment on the X-direction preferably with Z-direction the gap between the outer surface of the straight sections of the outer surface of the straight sections of adjacent side's endothermic tube and the opposing party's endothermic tube set more than or equal to the mode of 3mm in narrow spacer portion office.In view of the above, can prevent: steam condenses and the condensate water that produces is connected with each other at the outer surface of each straight sections, causes the blocked problem in gap between the straight sections.
Description of drawings
Fig. 1 represents to have the front view of the hot water supply device of the secondary heat exchanger that is made of heat exchanger for latent heat recovery of the present invention.
Fig. 2 represents along the side cutaway view of II-II line among Fig. 1.
Fig. 3 represents along the cutaway view of III-III line among Fig. 2.
The specific embodiment
With reference to Fig. 1, the 1st, the external shell of hot water supply device disposes in external shell 1: the burning basket 2 of built-in combustion device (not shown), the main heat exchanger 3 of burning basket 2 tops and the secondary heat exchanger 4 of main heat exchanger 3 tops.In addition, dispose at burning basket 2 downsides: combustion air is supplied with to the combustion blower 5 in the burning basket 2.
Install outside at the side plate 404 of the horizontal side of trunk 40: the inflow side set part 42 that is positioned at X-direction the place ahead
1, and the outflow side set part 42 that is positioned at the X-direction rear
2And, respectively gather part 42 at side plate 404
1, 42
2Configuration portion offer: a plurality of open-works of many endothermic tube 41 usefulness, part 42 is respectively gathered by what each open-work was connected in inflow side and outflow side in an end of each endothermic tube 41 and the other end
1, 42
2In addition, feed pipe K1 is connected in inflow side set part 42
1, the tube connector K3 that will link to each other with the endothermic tube 31-S of main heat exchanger 3 upstream extremities is connected in outflow side set part 42 simultaneously
2In case open drain plug, then gather part 42 from the inflow side as the water that is heated fluid
1Flow to outflow side set part 42 via many endothermic tubes 41
2, the steam in the burning and gas-exhausting is condensed in the outside of endothermic tube 41, and latent heat is recovered.Like this, by the latent heat preheating water supply with from secondary heat exchanger 4 again and give main heat exchanger 3.
More specifically, make begin from Z-direction below several odd-numbered lines also promptly the endothermic tube 41,41,41 of the 1st row (#1), the 3rd row (#3), the 5th row (#5) positions on X-direction are identical mutually, make simultaneously begin from Z-direction below several even number lines also promptly the endothermic tube 41,41,41 of the 2nd row (#2), the 4th row (#4), the 6th row (#6) positions on X-direction are identical mutually, and for the position of the endothermic tube 41 of odd-numbered line, make position dislocation rearward on X-direction of the endothermic tube 41 of even number line.Like this, the straight sections 41a of the endothermic tube 41 of the straight sections 41a of the endothermic tube 41 of odd-numbered line and even number line then is configured to alternately arrange shape.
In addition, both U-shaped bending joint portion 41b, the 41b that intersected of the endothermic tube 41 of the endothermic tube 41 of odd-numbered line and even number line is collapsed into: its thickness on Z-direction is less than the structure of the diameter of straight sections 41a.And when X-direction was observed the straight sections 41a of endothermic tube 41 of the straight sections 41a of endothermic tube 41 of odd-numbered line and even number line, both parts were overlapping on Z-direction.
In addition, if the disposition interval of straight sections 41a on X-direction of each endothermic tube 41 is set at P, then the magnitude of misalignment Δ P of endothermic tube 41 on X-direction of the endothermic tube 41 of odd-numbered line and even number line set for the value of 0.5<Δ P<P.Thus, the X-direction between the straight sections 41a of the endothermic tube 41 of the straight sections 41a of the endothermic tube 41 of odd-numbered line and even number line presents wide portions (wide interval part) at interval and presents narrow part (narrow compartment) alternately arrangement on X-direction.
In view of the above, the flow velocity of burning and gas-exhausting accelerates at narrow compartment, and partly becomes slow at wide interval.And, according to this change in flow, burning and gas-exhausting partly spreads at wide interval, the mixing thereby the part (dried discharge portion) of the burning and gas-exhausting after having promoted steam to condense to finish and steam condense between the part (discharge portion wets) of the burning and gas-exhausting that lags behind.Its result, even be positioned at the part that position, burning and gas-exhausting flow direction downstream also is the endothermic tube 41 of X-direction anterior position, steam also can be condensed effectively, thereby has improved the organic efficiency of latent heat.
In addition, gap delta between the outer surface of the straight sections 41a of the endothermic tube 41 of the outer surface of the straight sections 41a of the endothermic tube 41 of the odd-numbered line of narrow spacer portion office and even number line is not if reach 3mm, steam then can be connected with each other in the outer surface of each the straight sections 41a condensate water that produces of condensing, and might cause the gap between straight sections 41a, the 41a blocked.Therefore, above-mentioned magnitude of misalignment Δ P preferably sets more than or equal to the mode of 3mm with gap delta.In addition, in the product of the present invention of the embodiment of back explanation, gap delta is 3.209mm.
In addition, also can set magnitude of misalignment Δ P for 0<Δ P<0.5P.But, under this occasion, an end of the endothermic tube 41 of odd-numbered line and each end of the other end, and each end of the end of the endothermic tube 41 of even number line and the other end between the gap then narrow down.Thus, the gap between the open-work that the endothermic tube of offering on the side plate of trunk 40 is used also narrows down, and like this, can cause the insufficient strength of side plate 404.This occasion can consider to reduce the aperture of open-work, increases the gap between the open-work.Yet, like this, must impose: with the crowded forging and pressing processing of each end diameter reducing of endothermic tube 41, cause cost to improve corresponding to open-work.
To this, if set magnitude of misalignment Δ P for 0.5<Δ P<P, each end of the endothermic tube 41 of odd-numbered line, and each end of the endothermic tube 41 of even number line between the gap then become big.Thus, even need not reduce the aperture of open-work, also the gap between the open-work can be guaranteed in the sort of roomy degree that can not produce side plate 40 insufficient strength.Therefore, needn't impose the crowded forging and pressing processing of undergauge to each end of endothermic tube 41, more favourable aspect cost like this.
In addition, in the present embodiment, respectively gather part 42 though disposed in the outside of the side plate 404 of trunk 40
1, 42
2, still, also can respectively gather part 42 in the inner face configuration of side plate 404
1, 42
2, each end insertion of endothermic tube 41 is connected to: at each set part 42
1, 42
2Horizontal medial surface in each connecting hole of offering.Even in this occasion, if set magnitude of misalignment Δ P for 0.5<Δ P<P, also can reduce the aperture of connecting hole, just can increase the gap between connecting hole, guarantee respectively to gather part 42
1, 42
2Intensity, also needn't carry out the crowded forging and pressing processing of endothermic tube 41.
More than be with reference to description of drawings embodiments of the present invention, still, the present invention is not limited to this.For example, the quantity of endothermic tube 41 also can be greater or less than 6 in the above-mentioned embodiment.In addition, in the above-described embodiment, though the present invention has been useful on the heat exchanger for latent heat recovery that constitutes by secondary heat exchanger 4 of hot water supply device,, the present invention is suitable for except hot water supply device on the employed heat exchanger for latent heat recovery too.
[embodiment]
Claims (3)
1. heat exchanger for latent heat recovery, the direction parallel with the flow direction of burning and gas-exhausting is made as X-direction, the width of trunk that will be vertical with X-axis is made as Y direction, to be made as Z-direction with the X-axis direction vertical with Y-axis, in the trunk that burning and gas-exhausting flows, contain creep many endothermic tubes of shape of snake, this endothermic tube has: be straight a plurality of straight sections with equidistant configuration and in Y direction on X-direction, with will be on X-direction adjacent straight sections U-shaped bending joint portion connected to each other, an end and the other end of these endothermic tubes are connected to inflow side set part and outflow side set part, make and be heated fluid and flow to outflow side set part via these endothermic tubes from inflow side set part, so that the steam in the burning and gas-exhausting condenses in the outside of endothermic tube, thereby recovery latent heat, stacked many endothermic tubes on Z-direction, and endothermic tube adjacent on the Z-direction is each other again in X-direction dislocation ground configuration, this heat exchanger for latent heat recovery is characterised in that
Endothermic tube adjacent on the Z-direction is set in the magnitude of misalignment on the X-direction each other: than in the little scope of the disposition interval of straight sections on X-direction of each endothermic tube and for this disposition interval 1/2 beyond value.
2. heat exchanger for latent heat recovery according to claim 1 is characterized in that, described magnitude of misalignment is set for: than 1/2 of described disposition interval big value.
3. heat exchanger for latent heat recovery according to claim 1 and 2, it is characterized in that, described magnitude of misalignment is set in the following manner, the i.e. part of the X-direction gap turn narrow between the straight sections of the straight sections of side's endothermic tube adjacent on the Z-direction and the opposing party's endothermic tube, the gap between the outer surface of the outer surface of the straight sections of this side endothermic tube and the straight sections of this opposing party's endothermic tube is more than or equal to 3mm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005368296A JP2007170733A (en) | 2005-12-21 | 2005-12-21 | Latent heat recovery type heat exchanger |
JP2005368296 | 2005-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1987326A true CN1987326A (en) | 2007-06-27 |
CN100582631C CN100582631C (en) | 2010-01-20 |
Family
ID=38184212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200610132022A Expired - Fee Related CN100582631C (en) | 2005-12-21 | 2006-10-19 | Heat exchanger for latent heat recovery |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2007170733A (en) |
KR (1) | KR100738807B1 (en) |
CN (1) | CN100582631C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101749863A (en) * | 2008-12-09 | 2010-06-23 | 林内株式会社 | Latent heat recovery type heat exchanger |
CN102906510A (en) * | 2010-04-26 | 2013-01-30 | 林内株式会社 | Heat exchanger |
CN105403064A (en) * | 2015-11-03 | 2016-03-16 | 武汉烽火兴业节能环保科技有限公司 | Finned tube cooing water steam heat recovery system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5742073B2 (en) * | 2010-11-28 | 2015-07-01 | 株式会社ノーリツ | Heat exchanger and hot water device provided with the same |
JP6254341B2 (en) * | 2012-09-28 | 2017-12-27 | 株式会社ガスター | Combustion device |
JP2019011912A (en) | 2017-06-30 | 2019-01-24 | パーパス株式会社 | Heat exchange pipe, heat exchange unit, heat exchange device, hot water supply system and heat exchange pipe manufacturing method |
JP7484074B2 (en) | 2020-02-26 | 2024-05-16 | 株式会社ノーリツ | Heat exchanger and hot water device equipped with same |
JP6837589B2 (en) * | 2020-04-01 | 2021-03-03 | パーパス株式会社 | Heat exchanger and heat source machine |
WO2022044523A1 (en) * | 2020-08-24 | 2022-03-03 | 富士電機株式会社 | Fin tube heat exchanger |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH074872A (en) * | 1993-06-11 | 1995-01-10 | Matsushita Electric Ind Co Ltd | Heat exchanger and its manufacturing method |
JPH07293802A (en) * | 1994-04-27 | 1995-11-10 | Miura Co Ltd | Boiler structure of electrical boiler |
-
2005
- 2005-12-21 JP JP2005368296A patent/JP2007170733A/en active Pending
-
2006
- 2006-07-27 KR KR1020060070850A patent/KR100738807B1/en not_active IP Right Cessation
- 2006-10-19 CN CN200610132022A patent/CN100582631C/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101749863A (en) * | 2008-12-09 | 2010-06-23 | 林内株式会社 | Latent heat recovery type heat exchanger |
CN101749863B (en) * | 2008-12-09 | 2014-02-19 | 林内株式会社 | Latent heat recovery type heat exchanger |
CN102906510A (en) * | 2010-04-26 | 2013-01-30 | 林内株式会社 | Heat exchanger |
CN102906510B (en) * | 2010-04-26 | 2015-05-20 | 林内株式会社 | Heat exchanger |
CN105403064A (en) * | 2015-11-03 | 2016-03-16 | 武汉烽火兴业节能环保科技有限公司 | Finned tube cooing water steam heat recovery system |
CN105403064B (en) * | 2015-11-03 | 2017-12-22 | 武汉烽火兴业节能环保科技有限公司 | A kind of finned tube cooling water steam heat recovery system |
Also Published As
Publication number | Publication date |
---|---|
CN100582631C (en) | 2010-01-20 |
KR100738807B1 (en) | 2007-07-12 |
JP2007170733A (en) | 2007-07-05 |
KR20070066837A (en) | 2007-06-27 |
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Granted publication date: 20100120 Termination date: 20201019 |