• 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:

    公开号:DK200700188U1
    申请号:DK200700188U
    申请日:2007-07-03
    公开日:2007-09-14
    发明作者:Nikkinen Matti；Seppaenen Esa
    申请人:Paroc Oy Ab；
    IPC主号:
    专利说明:

    1DK 2007 00188 U3
    Pipe section for insulation purposes
    An object of the invention is a pipe section for insulation purposes, the thermal insulation layers of which consist of mineral wool layers of significantly different densities.
    In the prior art, a pipe section is indicated, the thermal insulation of which is formed by two separate pipe sections which are arranged in each other and have different densities. The purpose of this two-layer solution has been to use the innermost high-density insulation layer, so to speak, to first kill the heat passing outward from a hot tube. In this known solution (which is also included in the applicant's own product range), the pipe section with the highest density is closest to a pipe to be insulated. This method involves separately producing a tube section in two different densities, after which it is placed with a smaller diameter but a higher density within the tube section with a larger diameter but a lower density. Thus, the inner tube section has a volume weight higher than that of the outer one. The volume weight of the interior is typically 140 kg / m3 and that of the exterior is typically less than 100 kg / m3.
    This previously known solution is basically workable, but the present application model application has now discovered a new and clearly improved solution for the same purpose. Among other things, the pipe section according to the invention is better in terms of its insulating ability and simpler in terms of its production technique, which involves fewer processes and is thus cheaper.
    In the known solution, it is in particular the production and storage processes for the two separate, inner and outer sections that are unnecessarily cumbersome and expensive operations. The known solution also comprises unnecessary joint surfaces, which obviously have an undermining effect on the insulating ability of a pipe section.
    Thus, in order to eliminate the aforesaid disadvantages, the present generators have obtained a pipe section for insulation purposes, the thermal insulation layer consisting of mineral wool layers of considerably different densities, and which is new in that the thermal insulation layer consists of a continuous mineral wool mat, in which at least two sections having different densities are formed, the continuous mineral wool mat being rolled into tubular form so that each section creates its own mineral wool layer and at least the section forming the inner mineral wool layer of the tube section has a greater density than the subsequent section forming a mineral wool layer of a significantly different density and surrounding it, and that the tube section includes at least one slit and at least one internal section along the entire length of the tube section.
    According to a preferred embodiment of a pipe section according to the invention, the mineral wool consists of stone wool.
    According to yet another preferred embodiment of a pipe section according to the invention, the thermal insulation layers have densities of 1 - 300 kg / m 3, preferably 1-160 kg / m 3.
    According to a further preferred embodiment of a pipe section according to the invention, the number of thermal insulation layers of different densities is two, the one layer having a density of e.g. 1-150 kg / m3, preferably 50-100 kg / m3, and the second layer e.g. 100 to 300 kg / m3, preferably 100 to 200 kg / m3, however selected in such a way that the layers do not have equal densities. The section of a tube section having the highest density is preferably closest to the tube to be insulated. The layers can also be in the reverse order or include multiple layers (eg three layers, soft / dense / soft or dense / soft / dense).
    3 3DK 2007 00188 U3
    In addition, to further eliminate the aforementioned disadvantages of the prior art, the present generators have devised a method which is not subject to the production of a pipe section for insulation purposes, in which method the thermal insulation layer of the pipe section is formed from different densities, which is new in that the thermal insulation layer is created by forming in a continuous mineral wool mat of at least two sections of different densities, so that at least one section of the continuous wool mat is compressed to a given density, and the cohesive mineral wool mat which are formed with the sections of different densities, wound into tubular form, the sections of different densities positioned so as to create the mineral wool layers of significantly different densities for the thermal insulation layer,
    According to a preferred embodiment of the aforementioned method, the compression of the continuous mineral wool mat is compressed with a press roller for winding the mineral wool mat into tubular form.
    According to another preferred embodiment of the said method, the winding of the mineral wool mat into tubular form is carried out by winding it about a winding roller downstream of the pressing roll.
    According to a further preferred embodiment of said method, compression is carried out simultaneously with the winding by means of one or more pressing elements arranged in connection with the winding roller.
    According to yet another preferred embodiment of the aforementioned method, the pressing element (s) consists of one or more rollers and / or bands and / or nets.
    According to a further preferred embodiment of the aforementioned method, the tube section, after winding the thermal insulation layer, is provided with a mineral wool mat, preferably after curing, with at least one slot extending its entire length.
    According to a further preferred embodiment of the aforementioned method, the tube section, after winding the thermal insulation layer, is provided with a mineral wool mat, preferably after curing, with at least one internal cut extending its entire length. The mineral wool mat is preferably made of stone wool.
    The thermal insulation layers preferably have densities in the range of 1 - 300 kg / m 3, preferably in the range 1-160 kg / m 3
    The number of thermal insulation layers is preferably two, with one layer having a density of e.g. 1-150 kg / m3, preferably 50-100 kg / m3, and the second layer e.g. 100 - 300 kg / m3, preferably 140 - 200 kg / m3, however selected in such a way that the layers do not have the same density. The section of a pipe section having the highest density is preferably closest to a pipe to be insulated. The layers can also be in the reverse order or include multiple layers (eg three layers, soft / dense / soft or dense / soft / dense).
    Thus, by the aforementioned means, a pipe section according to the invention is provided for insulation purposes which has fewer joining surfaces and is thus better in terms of its insulating capacity. Furthermore, a manufacturing method is provided which is simpler, involves fewer operational steps and is cheaper than the known solution.
    A pipe section according to the invention can also be used for noise reduction solutions in the industry. Depending on the type of audio bandwidth over which the noise problem is evident, the densities of different layers can be determined accordingly. The number of layers may be more than one, preferably two, whereby the outer layer may have a density of 1 * 80 kg / m 3, preferably 65 - 80 kg / m 3, and the inner layer may have a density of 140 - 300 kg / m3, preferably 140 - 200 kg / m3. The layers may also be in reverse order or include several (ag (eg three layers, soft / dense / soft or dense / soft / dense).
    The invention will now be described in more detail by way of example with reference to the accompanying drawings, in which: FIG. 1 shows a solution according to the prior art in a cross-section having two separate pipe sections arranged together; FIG. 2 is a cross-sectional view showing a solution in which the thermal insulation layer consists of a continuous tubular wool mat wound in tubular form and including two sections of different densities providing two overlapping layers of different densities; FIG. 3 shows in a cross-sectional view a process solution in which a section of a continuous stone wool mat is compressed with a press roller; and FIG. 4 shows, in a cross-sectional view, another method solution in which the compression of a rock wool mat is carried out using pressing elements mounted around a winding roller.
    FIG. 1 is a cross-sectional view of a prior art pipe section 1 comprising two separate pipe sections 2 and 3 arranged together. This type of pipe section is made by mounting two separately manufactured and individual pipe sections 2 and 3 together. The inner tube section 3 has a volume weight or density of 140 kg / m3, and the outer section 2 has a density of 80 kg / m3. The inner tube section 3 is formed with a slot 5a which extends throughout its length, and with an inner section 5b. The outer tube section 2 is formed with a slot 4a which extends throughout its length, and an inner section 4b. The slots 4a and 5a as well as the inner sections 4b and 5b are necessary to allow mounting of the pipe section 3 around a pipe to be insulated and the outer pipe section 2 around the inner pipe section 3.
    FIG. 2 shows a cross section of a pipe section 1 'according to the invention, consisting of a continuous rock wool mat 9, which is wound into tubular form (see Fig. 3), and which includes two sections of different densities which, when winding the stone wool mat into tubular form, are placed for constituting the outer and inner layers 2 'and 3' of the pipe section Γ. The tubing section 1 'of the invention has only one slot 4'a extending throughout its length and an inner section 4'b. The inner layer 3 'has a density of 140 kg / m3 and the outer layer 2' has a density of 80 kg / m3. The inner layer 3 'preferably has a thickness in the range of 20-100 mm, and the outer layer 2' preferably has a thickness in the range of 100-200 mm. Another option is e.g. a three-layered insulation where the inner layer can have a density of more than 200 kg / m3 and a thickness of 10-20 mm.
    In order to compare the tube section 1 'of the production with its layers, it is cured by methods conventional in the art.
    FIG. 3 illustrates a preferred manufacturing method for pipe section 1 'according to the invention. In this preferred embodiment, the two-layered pipe section 1 'is made of a cohesive rock wool mat 9 using a press roller 8 prior to a winding roller 10. The method first comprises winding a higher density insulation layer 3' around the winding roller 10 in such a way that the cohesive rock wool mat 9 is first passed through the press roll 8 to compress it into a thinner (about half its thickness) but denser layers (as close to 140 kg / m3 as possible), which is then wound into its final shape around the winding roller 10. The section of the cohesive rock wool mat 9 to be compressed with the press roller 8 has a length equal to the inner circumference of the inner layer 3 'of the pipe section and the circumference of the winding roller 10. When a section of said length constituting the innermost layer 3 ', has been advanced from below the press roller 8, the press roller is lifted away from its compressive position. The inner insulating layer 3 'is wound into its shape around the winding roll 10, after which the winding of the continuous rock wool mat is continued winding a non-compressed section of the rock wool mat around the inner layer 3', which has already been wound around the winding roll 10, the second and outer insulation layer 2 'gets a smaller density (80 kg / m3) but a greater thickness than the inner layer 3'. The whole process is continuous, with the supply of the rock wool mat 9 around the winding roller 10 being interrupted, while the pressing roller 8 is lifted away from its compressive position.
    When both layers 2 'and 3' of a two-layered pipe section have been formed by winding around the winding roller 10, the pipe section 1 'is cured by conventional methods (by means of a mesh or mold and hot air), with the layers 2' and 3 'of the pipe section. are adhered to each other as a result of a binder found in the rock wool, and partly due to curing. Therefore, the pipe section 1 'is shape stable. Following the curing process, the two-layered pipe section 1 'is formed with a single slot 4'a and a single inner section 4'b, both extending the entire length of the pipe section 1'.
    One possible way to implement the generation is also to use a compaction solution depicted in FIG. 4, wherein a first and innermost layer 3 'to be made from a cohesive rock wool mat 9 is first wound around a winding roller 10 so that the rock wool mat 9 is wound through between the winding roll 10 and three rollers 11 positioned around the winding roll 10, the stone wool mat 9 is compressed into the mold with a thinner but denser inner layer 3 '. When a second and outer layer 2 'is wound on top of the inner layer, the rollers 11 are lifted away from their compressive position. Along with / in place of the rollers 11, the pressing elements may also comprise other solutions, such as one or more belts and / or nets.
    For secure connection with each other, the pipe sections according to the production can be formed with feathers and groove. Feathers and groove may be of the type feather and groove with end face, longitudinal feather and groove or of the type of feather and groove with Z lock.
    权利要求:
    Claims (1)
    [1]
    1. A pipe section for insulation purposes (2), the thermal insulation layer of which consists of mineral wool layers (2, 3) of considerably different densities, which are new 5 in that the thermal insulation layer consists of a continuous mineral wool mat (9) formed with at least two sections of different densities, the continuous mineral wool mat being rolled into tubular form so that each section creates its own mineral wool layer and at least one section forming the innermost mineral wool layer (3) of the tube section has a greater density than the subsequent section, forming a mineral wool layer (2 ', 3') of substantially different density and surrounding it, and that the tube section includes at least one slot (4'a) and at least one inner cut (4'b) along the entire length of the tube section (1 ).
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    同族专利:
    公开号 | 公开日
    FI20055243A0|2005-05-20|
    FI20055243A|2006-11-21|
    DE202006020046U1|2007-09-20|
    DK200700188U3|2007-10-12|
    WO2006123015A1|2006-11-23|
    PL64543Y1|2009-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB683221A|1950-03-01|1952-11-26|Fibreglass Ltd|Improvements relating to thermal-insulation coverings|
    SE309698B|1964-06-16|1969-03-31|Rockwool Ab|
    DE3235294C2|1982-09-23|1987-10-22|Gruenzweig + Hartmann Und Glasfaser Ag, 6700 Ludwigshafen, De|
    DE19831572A1|1998-07-14|2000-01-20|Siemens Ag|Arrangement and method for storing the test results obtained with a BIST circuit|DE102007033794A1|2007-07-19|2009-01-22|Saint-Gobain Isover G+H Ag|Method for producing a pipe shell made of mineral wool by a winding process as well as pipe shell produced therewith|
    DE102013019682A1|2013-11-22|2015-05-28|Saint-Gobain Isover G+H Ag|Insulating element for heat and / or sound insulation of pipes, especially chimney pipes|
    法律状态:
    2016-05-13| UUP| Utility model expired|Expiry date: 20160508 |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20055243A|FI20055243A|2005-05-20|2005-05-20|Pipe insulation trough and method for its manufacture|
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