• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an anti-freeze system (100) for a pipe (10), said anti-freeze system (100) comprising: - a frame (102) intended to be fixed on the pipe (10), and - at least one sleeve (104) ) thermally insulating and held around the pipe (10) by the frame (102), the antifreeze system (100) being characterized in that the or each sleeve (104) is configured so that a space (20) is formed between the sleeve (104) and the pipe (10), in that the frame (102) has an inlet (112) and an outlet (114), which are configured to provide fluid communication between the outside of the system antifreeze (100) and the space (20), and in that the inlet (112) is fluidly connected to a source of hot air (30). Such an antifreeze system (100) thus allows a hot air flow around the pipe (10) thus preventing the freezing of the liquid circulating therein.
    公开号:FR3029595A1
    申请号:FR1462059
    申请日:2014-12-08
    公开日:2016-06-10
    发明作者:Didier Reynes；Christophe Casse
    申请人:Airbus Operations SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an antifreeze system for a pipeline, an assembly comprising a pipe and an anti-freeze system, and an aircraft comprising at least one such assembly. There are many pipes carrying liquids such as water.
    [0002] In some cases, to prevent the liquid flowing in a pipe freezes, heating elements, electrical resistance type, and temperature sensors are arranged along the pipe. When a temperature sensor detects that the temperature of the liquid becomes too low to the risk of causing it to freeze, it controls at least one of the heating elements so that they heat the liquid.
    [0003] In the case of an aircraft, there is a large number of lines to monitor, which leads to the establishment of a large number of temperature sensors and heating elements. These different elements are relatively expensive and heavy, which is penalizing from the point of view of the operating cost and the weight of the aircraft. An object of the present invention is to provide an antifreeze system which does not have the drawbacks of the prior art and which in particular allows a saving in weight compared to current installations. For this purpose, an anti-freeze system for a pipeline is proposed, said antifreeze system comprising: a frame intended to be fixed on the pipeline, and at least one thermally insulating sleeve held around the pipeline by the chassis, the antifreeze system. characterized in that the or each sleeve is configured such that a space is provided between the sleeve and the pipe, in that the chassis has an inlet and an outlet, which are configured to provide fluid communication between the pipe and the pipe. the outside of the antifreeze system and the space, and in that the inlet is fluidly connected to a source of hot air. Such an anti-freeze system makes it possible to pass hot air around the pipe making it possible to keep the liquid circulating therein at a sufficiently high temperature to prevent freezing. Advantageously, the sleeve comprises a tube and pads arranged radially inside the tube. Advantageously, the frame has two end supports each having a hole constituting for one the inlet and the other the outlet, and for each pair of sleeves, an intermediate support disposed between the two sleeves and having less an air passage configured to allow the passage of hot air from one end support to the other end support. Advantageously, each end support comprises: 5 - a flange intended to be engaged on the pipe, - a bottom secured to the flange and extending around the flange, - a side wall of revolution integral with the bottom and extending from the bottom parallel to the axis of the flange, and - a ring fixed inside the side wall and away from the bottom and whose inner circle constitutes a free edge, and the hole opens at the bottom. inside the side wall between the bottom and the crown. Advantageously, the intermediate support comprises: a collar intended to be engaged on the pipe, a bottom solid with the collar and extending around the collar, a lateral wall of revolution integral with the bottom and extending from both sides of the bottom parallel to the axis of the flange, and - on either side of the bottom, an intermediate wall fixed to the bottom between the side wall and the flange, and the or each air passage is arranged in the bottom between the intermediate wall and the flange. The invention also provides an assembly comprising a pipe and an anti-freeze system according to one of the previous variants whose frame is fixed on the pipe and the or each sleeve is maintained around the pipe.
    [0004] The invention also proposes an aircraft comprising a reactor equipped with a plug configured to draw hot air into the reactor, an assembly according to the preceding variant, and where the source of hot air is a pipe coming from the outlet. . The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the attached drawings, among which: Fig. 1 is a sectional view of an assembly according to the invention comprising an anti-freeze system, FIG. 2 shows an example of an anti-freeze frame of FIG. 1, FIG. 3 shows a section along the line of FIG. 1, and FIG. 4 shows an aircraft comprising an assembly according to the invention. Fig. 1 shows an assembly 1 comprising a pipe 10 in which a liquid circulates, such as water and antifreeze system 100. The antifreeze system 100 comprises a frame 102 fixed on the pipe 10, and at least one thermally insulating sleeve 104 and maintained around the pipe 10 by the frame 102. For this purpose, the frame 102 has fixing means ensuring its attachment 10 to the pipe 10. The antifreeze system 100 comprises a first and a second ends and here takes generally the form of a cylinder. In the embodiment of the invention presented here, there are two consecutive sleeves 104, but it is possible to put one or to put more than two, depending on the length of the pipe 10 to be protected. The sleeve 104 is configured so that a space 20 is formed between the sleeve 104 and the pipe 10, for this purpose, the inside diameter of the sleeve 104 is greater than the outside diameter of the pipe 10. The frame 102 has a groove. inlet 112 at the first end and an outlet 114 at the second end. The inlet 112 and the outlet 114 are configured to perform fluid communication between the outside of the antifreeze system 100 and the space 20, ie inside the sleeve 104. The inlet 112 is fluidly connected to a hot air source 30 in motion, here via a pipe. The air is said to be hot when it has a temperature sufficient to prevent freezing of the liquid flowing in the pipe. The operation of the antifreeze system 100 is as follows: the hot air is sent by the hot air source 30 through the inlet 112 (arrow 32), the hot air progresses inside the sleeve 104 in passing through the space 20 and 30 by wrapping the pipe 10 (arrows 34), the hot air exits the sleeve through the outlet 114 where it is discharged (arrow 36). The path of the hot air around the pipe 10 makes it possible to keep the liquid circulating at a sufficiently high temperature to prevent freezing. The or each sleeve 104 is made for example of polyethylene foam.
    [0005] FIG. 3 shows the sleeve 104 in section through a plane perpendicular to its axis. In the embodiment of the invention presented here, the sleeve 104 comprises a tube 304 and studs 302. In order to maintain the position of the tube 302, the studs 302 are arranged radially inside the tube 304. The studs 302 thus extend from the inner face of the tube 304 to the outer face of the pipe 10. The space 20 is thus defined between the studs 302. In the embodiment of the invention presented here, there are three rows of studs 302 arranged at 120 ° from each other.
    [0006] FIG. 2 shows the frame 102 without the sleeves 104. The frame 102 has two end supports 106 and 108, each disposed at one end of the antifreeze system 100, for each pair of sleeves 104, an intermediate support 110 disposed between them. two sleeves 104 of the pair and having at least one air passage 206 configured to allow the passage of hot air from an end support 106 to the other end support 108, and more specifically to the space 20 of a sleeve 104 of the pair to the space 20 of the other sleeve 104 of the pair. Each end support 106, 108 has a hole 208 constituting for one the inlet 112 and the other the outlet 114.
    [0007] Each support 106, 108, 110 has fastening means 202 which secure it to the pipe 10. The fastening means 202 here take the form of a flange fitted on the pipe 10. The end supports 106 and 108 are preferably identical, and here only the end support 106 is described.
    [0008] The end support 106 has a bottom 250 integral with the flange 202 and which extends around the flange 202, a side wall 252 of revolution, here a cylindrical, integral with the bottom 250 and extending from the The end support 106, 108 thus takes the form of an open tank and the two tanks face each other by their openings. The end support 106 also has a ring 254 fixed inside the side wall 252 and away from the bottom 250 and whose inner circle 256 constitutes a free edge, that is to say that it is not contact neither with the pipe 10 nor with the collar 202.
    [0009] The bore 208, which here constitutes the inlet 112, opens into the interior of the side wall 252 between the bottom 250 and the crown 254. During the assembly of the antifreeze system 100, the sleeve 104, and more particularly the tube 304, is placed inside the side wall 252 and in abutment against the crown 254. Thus, the air from the inlet 112 flows between the bottom 250 and the crown 254 through the circle 256 to enter the space 20. In a symmetrical manner, the air present in the space 20 flows, through the inner circle 256, between the bottom 250 and the ring 254 to reach the outlet 114.
    [0010] This particular arrangement of each end support 106, 108 prevents the sleeve 104 from closing the bore 208 since it can not extend beyond the crown 254. The intermediate support 110 has a bottom 260 integral with the collar 202 and which extends around the flange 202, a side wall 262 of revolution, here a cylindrical, integral with the bottom 260 and which extends on either side of the bottom 260 parallel to the axis of the flange 202. The intermediate support 110 is symmetrical with respect to the bottom 260 and takes the form of two open tanks with a common bottom. On either side of the bottom 260, the intermediate support 110 also has an intermediate wall 264 fixed to the bottom 260 between the side wall 262 and the collar 202. The or each air passage 206 is arranged in the bottom 260 between the intermediate wall 264 and the flange 202. During assembly of the antifreeze system 100, the sleeve 104, and more particularly the tube 304, is placed between the side wall 262 and the intermediate wall 264 resting against the bottom 260 Thus, the air from a space 20 can pass through the bottom 260 through the or each air passage 206 which can not be closed by the sleeve 104. FIG. 4 shows an aircraft 400 with a reactor 402 and at least one assembly 30 1 with a line 10 and an antifreeze system 100. The hot air source 30 is a line from a reactor 402 402 and allowing to take from hot air in the reactor 402.
    权利要求:
    Claims (7)
    [0001]
    CLAIMS1) Antifreeze system (100) for a pipe (10), said antifreeze system (100) comprising: - a frame (102) to be fixed on the pipe (10), and - at least one sleeve (104) thermally insulating and held around the pipe (10) by the frame (102), the antifreeze system (100) being characterized in that the or each sleeve (104) is configured such that a gap (20) is formed between the sleeve (104) and the pipe (10), in that the frame (102) has an inlet (112) and an outlet (114), which are configured to provide fluid communication between the outside of the antifreeze system (100) and the space (20), and that the inlet (112) is fluidly connected to a source of hot air (30).
    [0002]
    2) antifreeze system (100) according to claim 1, characterized in that the sleeve (104) comprises a tube (304) and pads (302) arranged radially inside the tube (304).
    [0003]
    3) antifreeze system (100) according to one of claims 1 or 2, characterized in that the frame (102) has two end supports (106, 108) each having a bore (208) constituting for one l at the inlet (114), and for each pair of sleeves (104), an intermediate support (110) disposed between the two sleeves (104) and having at least one air passage ( 206) configured to allow passage of hot air from one end support (106) to the other end support (108).
    [0004]
    4) Anti-freeze system (100) according to claim 3, characterized in that each end support (106, 108) comprises: - a collar (202) intended to be slipped on the pipe (10), - a bottom ( 250) secured to the flange (202) and extending around the flange (202), - a side wall (252) of revolution integral with the bottom (250) and extending from the bottom (250) parallel to the flange (202). the axis of the collar (202), and 3029595 7 - a ring (254) fixed inside the side wall (252) and away from the bottom (250) and whose inner circle (256) constitutes a free edge , and in that the bore (208) opens into the interior of the side wall (252) between the bottom (250) and the ring (254). 5
    [0005]
    5) Anti-freeze system (100) according to one of claims 3 or 4, characterized in that the intermediate support (110) comprises: - a collar (202) for engaging on the pipe (10), - a bottom (260) integral with the flange (202) and extending around the flange (202), 10 - a side wall (262) of revolution integral with the bottom (260) and extending on either side of the bottom (260) parallel to the axis of the flange (202), and - on either side of the bottom (260), an intermediate wall (264) fixed to the bottom (260) between the side wall (262) and the flange (202), and in that the or each air passage (206) is arranged in the bottom (260) between the intermediate wall (264) and the flange (202).
    [0006]
    6) assembly (1) comprising a pipe (10) and antifreeze system (100) according to one of the preceding claims, the frame (102) is fixed on the pipe (10) and the or each sleeve (104) is maintained around the pipe (10). 20
    [0007]
    7) An aircraft (400) having a reactor (402) having a plug (404) configured to draw hot air into the reactor (402), an assembly (1) according to claim 6, and wherein the source hot air (30) is a pipe from the outlet (404).
    类似技术:
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    同族专利:
    公开号 | 公开日
    US9976482B2|2018-05-22|
    CN105673983B|2019-11-26|
    US20160160759A1|2016-06-09|
    CN105673983A|2016-06-15|
    FR3029595B1|2017-06-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    法律状态:
    2015-12-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-06-10| PLSC| Publication of the preliminary search report|Effective date: 20160610 |
    2016-12-22| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-21| PLFP| Fee payment|Year of fee payment: 4 |
    2019-12-19| PLFP| Fee payment|Year of fee payment: 6 |
    2020-12-23| PLFP| Fee payment|Year of fee payment: 7 |
    2021-12-24| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1462059A|FR3029595B1|2014-12-08|2014-12-08|ANTIFREEZE SYSTEM FOR A CANALIZATION|FR1462059A| FR3029595B1|2014-12-08|2014-12-08|ANTIFREEZE SYSTEM FOR A CANALIZATION|
    US14/961,365| US9976482B2|2014-12-08|2015-12-07|Antifreeze system for a pipework|
    CN201511035951.3A| CN105673983B|2014-12-08|2015-12-07|Anti-freeze system for pipeline|
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