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CN109900136B - Fin and heat exchanger - Google Patents

Fin and heat exchanger Download PDF

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Publication number
CN109900136B
CN109900136B CN201711284348.8A CN201711284348A CN109900136B CN 109900136 B CN109900136 B CN 109900136B CN 201711284348 A CN201711284348 A CN 201711284348A CN 109900136 B CN109900136 B CN 109900136B
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China
Prior art keywords
heat exchange
windward
leeward
plate
plates
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CN201711284348.8A
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Chinese (zh)
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CN109900136A (en
Inventor
江俊
吴青昊
魏文建
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Zhejiang Dunan Machinery Co Ltd
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Zhejiang Dunan Machinery Co Ltd
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Priority to CN201711284348.8A priority Critical patent/CN109900136B/en
Priority to CN202110475280.1A priority patent/CN113357937B/en
Publication of CN109900136A publication Critical patent/CN109900136A/en
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Publication of CN109900136B publication Critical patent/CN109900136B/en
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    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention provides a fin and a heat exchanger, wherein the fin is used for being connected with a heat exchange tube, the fin comprises a plurality of windward plates and a plurality of leeward plates, heat exchange tube grooves are respectively arranged at one ends of the windward plates and the leeward plates, which are matched with the heat exchange tube, and the plurality of windward plates and the plurality of leeward plates are respectively arranged along two sides of the heat exchange tube at intervals, the distance between the adjacent windward plates is greater than or equal to the distance between the adjacent leeward plates, and the distance between the leeward plates is smaller, so that the heat exchange efficiency of the fin is higher, the distance between the windward plates is larger, the frosting speed is reduced, the windward side is not easy to block, and the use reliability of the fin is improved.

Description

Fin and heat exchanger
Technical Field
The invention relates to a fin and a heat exchanger.
Background
Compared with the traditional finned tube heat exchanger, the condenser with the conventional microchannel for the single cooling unit has the advantages of higher heat exchange efficiency, lower wind resistance, lower refrigerant filling amount, lower material cost and the like. However, due to structural limitations, the problems of frequent frosting, difficult water drainage, easy filth blockage and the like of the evaporator for the heat pump system are not well solved, and a good solution is not provided. The insert type micro-channel released by a certain manufacturer solves the problem of drainage to a certain extent, but does not solve the problem of frequent frosting, and sacrifices a part of fin area to cause the reduction of heat exchange efficiency.
Disclosure of Invention
The invention aims to provide a fin and a heat exchanger, which solve the problem of frosting under the condition of not influencing the heat exchange efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a fin for be connected with the heat exchange tube, the fin includes a plurality of windward plate and a plurality of leeward plate, and windward plate and leeward plate all are equipped with the heat exchange tube groove with heat exchange tube complex one end, and a plurality of windward plate and a plurality of leeward plate set up along the both sides interval of heat exchange tube respectively, distance more than or equal to between the adjacent leeward plate distance.
Furthermore, one end of the windward plate, which is far away from the heat exchange tube, is provided with a blocking part, and the cross section of the blocking part is wavy.
Furthermore, the distance between the adjacent windward plates is a, a is more than or equal to 1.0mm and less than or equal to 4.0mm, the distance between the adjacent leeward plates is b, and b is more than or equal to 1.0mm and less than or equal to 4.0 mm.
Furthermore, shutters are arranged on the windward plate and the leeward plate.
Furthermore, a gap for assembling is reserved between the windward plate and the leeward plate.
Furthermore, reinforcing ribs are arranged on the windward plate and the leeward plate.
Furthermore, the heat exchange tube groove is provided with a flanging.
Furthermore, the windward plate and the leeward plate are both punched and formed.
The invention also discloses a heat exchanger, which comprises a first collecting pipe, a second collecting pipe, a plurality of heat exchange tubes and fins, wherein the heat exchange tubes are perpendicular to the first collecting pipe and the second collecting pipe, the fins are perpendicular to the heat exchange tubes, the heat exchange tubes are staggered and arranged into two rows in the air flow direction, and the fins are the fins in the technical scheme.
Furthermore, the fins and the heat exchange tube are connected into a whole through welding.
After the technical scheme is adopted, the invention has the following advantages:
1. through setting up a plurality of windward plate and a plurality of leeward board, a plurality of windward plate and a plurality of leeward board set up along the both sides interval of heat exchange tube respectively, distance between the adjacent windward plate distance between the more than or equal to adjacent leeward board, distance between the leeward board is less for the heat exchange efficiency of fin is higher, distance between the windward plate is great, the speed of frosting slows down, windward side is difficult to be plugged up, improves the reliability that the fin used.
2. Set up the stop part through the one end of keeping away from the heat exchange tube at the windward plate, the stop part makes frost knot between two adjacent stop parts, prevent that frost gets into inside the fin, guarantee the normal use of fin, the transversal wave of personally submitting of stop part, increase the effective heat transfer area of windward plate and the disturbance when the air flows, improve the heat exchange efficiency of fin, the intensity of windward side also can be increased to the stop part simultaneously, make the use of fin more reliable, in addition because the stop part is the wave, the spill part that can follow the stop part after the frost melts very easily discharges, make the drainage easier, improve the reliability that the fin used.
3. Through setting up the distance between the adjacent windward plates at 1.0mm within range to 4.0mm for distance between the adjacent windward plates is far away, is difficult to frosting, and the frost of knot also is difficult to plug up the windward mouth, and, distance between the adjacent windward plates also can not be too far away, makes the heat exchange efficiency of fin lower. When the distance between adjacent windward plates is less than 1.0mm, the distance between the windward plates is too small, and frosting is easy to occur, and when the distance between the adjacent windward plates is more than 4.0mm, the distance between the windward plates is too large, and the heat exchange efficiency of the fins is low. Through setting up the distance between the adjacent leeward board at 1.0mm within range to 4.0mm for the distance of adjacent leeward board is nearer, can set up several leeward boards more, increases effective heat radiating area, and the distance of adjacent leeward board can not be too near simultaneously, and the air can pass through fast, guarantees the heat exchange efficiency of fin. When the distance between the adjacent leeward plates is smaller than 1.0mm, the distance between the leeward plates is too small, air cannot pass through quickly, and when the distance between the adjacent leeward plates is larger than 4.0mm, the distance between the leeward plates is too large, and the arrangement of too many leeward plates is avoided, so that the heat exchange efficiency of the fins is low.
4. The louver is arranged on the windward plate and the leeward plate, so that the disturbance of air flow is enhanced, and the heat exchange efficiency of the fins is improved.
5. A gap for assembling is reserved between the windward plate and the leeward plate, so that the windward plate and the leeward plate are more convenient to mount.
6. The reinforcing ribs are arranged on the windward plate and the leeward plate, so that the strength of the windward plate and the leeward plate is improved, and the windward plate and the leeward plate are more reliable to use.
7. The flanging is arranged on the heat exchange pipe groove, so that the positioning effect is achieved, the heat exchange pipe is more convenient to install, meanwhile, the connection between the heat exchange pipe and the fins is facilitated, and the distance between the fins can be positioned by utilizing the flanging.
8. The windward plate and the leeward plate are both punched and formed, the processing is simple and convenient, and the production efficiency is high.
9. The invention also discloses a heat exchanger, which comprises a first collecting pipe, a second collecting pipe, a plurality of heat exchange pipes and fins, wherein the heat exchange pipes are arranged perpendicular to the first collecting pipe and the second collecting pipe, the fins are arranged perpendicular to the heat exchange pipes, the heat exchange pipes are arranged in two rows in a staggered mode in the air flow direction, and the fins are the fins in the technical scheme.
10. The fins and the heat exchange tube are connected into a whole by welding, so that the processing is simple and convenient and the connection is reliable.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the structure of the fin and the heat exchange tube of the present invention.
Fig. 2 is a schematic view of the cooperation of the windward plate and the leeward plate of the present invention.
Fig. 3 is an enlarged view of a in fig. 2.
Fig. 4 is a schematic view of the separation of the windward plate and leeward plate of the present invention.
Fig. 5 is a schematic structural view of a windward plate in the fin of the present invention.
Fig. 6 is a schematic structural view of a heat exchanger according to the present invention.
The names of the components marked in the figures are as follows:
1. a windward plate; 11. a blocking portion; 2. a leeward plate; 3. a heat exchange pipe groove; 4. a blind window; 5. a gap; 6. reinforcing ribs; 7. flanging; 8. a first header; 9. a second header; 10. a heat exchange tube.
Detailed Description
As shown in fig. 1 to 5, the invention provides a fin for connecting with a heat exchange tube 10, the fin comprises a plurality of windward plates 1 and a plurality of leeward plates 2, heat exchange tube grooves 3 are respectively arranged at one ends of the windward plates 1 and the leeward plates 2, which are matched with the heat exchange tube 10, the windward plates 1 and the leeward plates 2 are respectively arranged along two sides of the heat exchange tube 10 at intervals, the distance between the adjacent windward plates 1 is greater than or equal to the distance between the adjacent leeward plates 2, and the distance between the leeward plates 2 is smaller, so that the heat exchange efficiency of the fin is higher, the distance between the windward plates 1 is larger, the frosting speed is reduced, the windward sides are not easily blocked, and the use reliability of the fin is improved. The number of heat exchange pipe grooves can be selected according to actual needs, and in the embodiment, the heat exchange pipe grooves 3 are provided with 4 heat exchange pipes, two heat exchange pipes are arranged on the windward plate 1, and two heat exchange pipes are arranged on the leeward plate 2.
In this embodiment, one end of the windward plate 1 far away from the heat exchange tube 10 is provided with the blocking part 11, the blocking part 11 enables frost to be formed between two adjacent blocking parts 11, the frost is prevented from entering the inside of the fin, the normal use of the fin is ensured, the cross section of the blocking part 11 is wavy, the effective heat exchange area of the windward plate 1 is increased, the disturbance during air flow is increased, the heat exchange efficiency of the fin is improved, meanwhile, the blocking part 11 can also increase the strength of the windward side, the fin is more reliable to use, in addition, the blocking part 11 is wavy, the frost can be easily discharged from the concave part of the blocking part 11 after melting, water drainage is easier, and the use reliability of the fin is improved.
The distance L1 from the heat exchange tube groove 3 on the windward plate 1 to the windward port and the distance L2 from the heat exchange tube groove 3 on the leeward plate 2 to the leeward port are different, in the embodiment, L1 is greater than L2, so that the blocking part 11 can be arranged to be wider, the effect that the blocking part blocks further frosting is further ensured, and the effective heat exchange area of the windward plate and the disturbance during air flow are further increased.
The distance between adjacent windward plates 1 is a, a is not less than 1.0mm and not more than 4.0mm, the distance between the adjacent windward plates 1 is in the range of 1.0mm to 4.0mm, so that the distance between the adjacent windward plates 1 is far, frosting is not easy to occur, frosting does not easily block a windward opening, the distance between the adjacent windward plates 1 is not too far, and the heat exchange efficiency of the fin is low. The distance between the adjacent leeward plates 2 is b, b is not less than 1.0mm and not more than 4.0mm, the distance between the adjacent leeward plates 2 is in the range from 1.0mm to 4.0mm, so that the distance between the adjacent leeward plates 2 is relatively short, a plurality of leeward plates 2 can be additionally arranged, the effective heat dissipation area is increased, meanwhile, the distance between the adjacent leeward plates 2 cannot be too short, air can rapidly pass through, and the heat exchange efficiency of the fins is ensured. In this embodiment, a is 2.0mm, so that the heat exchange efficiency of the windward plates 1 is high, and the distance between the windward plates 1 is large, and frost is not easily formed. b takes 1.0mm for the distance between the adjacent leeward plates 2 is more suitable, makes can set up more leeward plates 2, increases effective heat radiating area, and the air can more rapidly get through simultaneously, makes heat exchange efficiency higher.
The windward plate 1 and the leeward plate 2 are both provided with the shutters 4, so that the disturbance of air flow is enhanced, and the heat exchange efficiency of the fins is improved.
A gap 5 for assembling is reserved between the windward plate 1 and the leeward plate 2, so that the windward plate 1 and the leeward plate 2 are more convenient to install.
All be equipped with strengthening rib 6 on windward plate 1 and the leeward board 2, improve windward plate 1 and leeward board 2's intensity for windward plate 1 and leeward board 2's use is more reliable. In this embodiment, the windward plate 1 is provided with a straight reinforcing rib, and the leeward plate 2 is provided with a cross reinforcing rib.
The heat exchange tube groove 3 is provided with the flanging 7, so that the positioning effect is achieved, the heat exchange tube 10 is more convenient to install, meanwhile, the connection between the heat exchange tube 10 and the fins is facilitated, and the distance between the fins can be positioned by utilizing the flanging.
The windward plate 1 and the leeward plate 2 are both punched and formed, the processing is simple and convenient, and the production efficiency is high.
It is understood that the heat exchange tube grooves can be provided with 2, 6, 8, 10, etc., and the number can be selected according to the number of the actual heat exchange tubes.
It is understood that L1 ═ L2, or L1 < L2 are also possible.
It is understood that a can also take the form of 1.0mm, 1.5mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, and the like.
It will be appreciated that b may also take the form of 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, etc.
It can be understood that the windward plate can be provided with a cross-shaped reinforcing rib, and the leeward plate can be provided with a straight-shaped reinforcing rib.
It can be understood that the windward plate and the leeward plate can be provided with the straight reinforcing ribs.
It can be understood that cross-shaped reinforcing ribs can be arranged on the windward plate and the leeward plate.
Certainly, as shown in fig. 6, the invention also discloses a heat exchanger, which comprises a first collecting pipe 8, a second collecting pipe 9, a plurality of heat exchange pipes 10 arranged perpendicular to the first collecting pipe 8 and the second collecting pipe 9, and fins arranged perpendicular to the heat exchange pipes 10, wherein the heat exchange pipes are arranged in two rows in a staggered manner in the air flow direction, and the fins are fins in any technical scheme.
The fins are connected with the heat exchange tube 10 into a whole through welding, so that the processing is simple and convenient and the connection is reliable.
It will be appreciated that the fins and heat exchange tubes may be connected in other ways.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims (10)

1.一种翅片，用于与换热管连接，其特征在于，所述翅片包括若干个迎风板和若干个背风板，迎风板和背风板与换热管配合的一端均设有换热管槽，若干个迎风板和若干个背风板分别沿着换热管的两侧间隔设置，相邻迎风板之间的距离大于等于相邻背风板之间的距离；1. A fin is used to be connected with a heat exchange tube, and it is characterized in that, the fin includes several windward plates and several leeward plates, and one end of the windward plate and the leeward plate that is matched with the heat exchange tube is provided with a heat exchanger. In the heat pipe slot, a number of windward plates and a number of leeward plates are arranged at intervals along both sides of the heat exchange tube, and the distance between adjacent windward plates is greater than or equal to the distance between adjacent leeward plates; 所述迎风板与所述背风板之间凹凸配合，且所述迎风板的换热管槽与所述背风板的换热管槽共同形成换热管配合孔，所述换热管配合孔在空气流动方向上错开排布成两列。There is a concave-convex fit between the windward plate and the leeward plate, and the heat exchange pipe groove of the windward plate and the heat exchange pipe groove of the leeward plate together form a heat exchange pipe fitting hole, and the heat exchange pipe fitting hole is in the The air flow direction is staggered and arranged in two columns. 2.根据权利要求1所述翅片，其特征在于，所述迎风板远离换热管的一端设有阻挡部，阻挡部的横截面呈波浪形。2 . The fin according to claim 1 , wherein the end of the windward plate away from the heat exchange tube is provided with a blocking portion, and the cross-section of the blocking portion is wavy. 3 . 3.根据权利要求1所述翅片，其特征在于，相邻迎风板之间的距离为a，1.0mm≤a≤4.0mm，相邻背风板之间的距离为b，1.0mm≤b≤4.0mm。3. The fin according to claim 1, wherein the distance between adjacent windward plates is a, 1.0mm≤a≤4.0mm, and the distance between adjacent leeward plates is b, 1.0mm≤b≤ 4.0mm. 4.根据权利要求1所述翅片，其特征在于，所述迎风板和背风板上均设有百叶窗。4 . The fin according to claim 1 , wherein the windward plate and the leeward plate are provided with shutters. 5 . 5.根据权利要求1所述翅片，其特征在于，所述迎风板和背风板之间留有用于装配的缝隙。5 . The fin according to claim 1 , wherein a gap for assembly is left between the windward plate and the leeward plate. 6 . 6.根据权利要求1所述翅片，其特征在于，所述迎风板和背风板上均设有加强筋。6 . The fin according to claim 1 , wherein the windward plate and the leeward plate are provided with reinforcing ribs. 7 . 7.根据权利要求1所述翅片，其特征在于，所述换热管槽上设有翻边。7 . The fin according to claim 1 , wherein the heat exchange tube grooves are provided with flanges. 8 . 8.根据权利要求1所述翅片，其特征在于，所述迎风板和背风板均冲裁成型。8 . The fin according to claim 1 , wherein the windward plate and the leeward plate are punched and formed. 9 . 9.一种换热器，包括第一集流管、第二集流管、若干个垂直于第一集流管和第二集流管设置的换热管及垂直于换热管设置的翅片，换热管在空气流动方向上错开排布成两列，其特征在于，所述翅片为权利要求1至8任意一项所述的翅片。9. A heat exchanger comprising a first header, a second header, a plurality of heat exchange tubes arranged perpendicular to the first header and the second header, and fins arranged perpendicular to the heat exchange tubes The heat exchange tubes are staggered and arranged in two rows in the air flow direction, wherein the fins are the fins described in any one of claims 1 to 8. 10.根据权利要求9所述的换热器，其特征在于，所述翅片与换热管通过焊接连接成一体。10 . The heat exchanger according to claim 9 , wherein the fins and the heat exchange tubes are integrally connected by welding. 11 .
CN201711284348.8A 2017-12-07 2017-12-07 Fin and heat exchanger Active CN109900136B (en)

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CN201711284348.8A CN109900136B (en) 2017-12-07 2017-12-07 Fin and heat exchanger
CN202110475280.1A CN113357937B (en) 2017-12-07 2017-12-07 Fin and heat exchanger

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CN201711284348.8A CN109900136B (en) 2017-12-07 2017-12-07 Fin and heat exchanger

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CN109900136B true CN109900136B (en) 2021-12-07

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CN112444146B (en) * 2019-08-29 2024-08-20 青岛海信日立空调系统有限公司 Microchannel heat exchanger and air conditioner
JP7516335B2 (en) * 2021-09-30 2024-07-16 ダイキン工業株式会社 Heat exchanger
CN114440689A (en) * 2022-01-28 2022-05-06 广东美的暖通设备有限公司 Fin structure and heat exchanger
CN119436894B (en) * 2024-10-28 2025-09-19 广东美的制冷设备有限公司 Heat exchanger fins and heat exchanger

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CN103791659A (en) * 2012-10-29 2014-05-14 三星电子株式会社 Heat exchanger
CN205980897U (en) * 2015-05-27 2017-02-22 三菱电机株式会社 Heat exchanger , cold and hot equipment and refrigerator
CN206073785U (en) * 2016-09-07 2017-04-05 珠海格力电器股份有限公司 Fin and radiator comprising same

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CN109900136A (en) 2019-06-18
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