CN2903227Y

CN2903227Y - Heat insulating structure of metallic contour plate roof embedded cold proof bridge

Info

Publication number: CN2903227Y
Application number: CN 200620023345
Authority: CN
Inventors: 王瑞建
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-13
Filing date: 2006-01-13
Publication date: 2007-05-23
Anticipated expiration: 2016-01-13

Abstract

The utility model relates to a cold-bridge-proof heat insulation structure built in roof with metal profiled sheet comprising glass wool laying on purlins, a metal profiled sheet pressing on the glass wool, a bracket positioned between the metal profiled sheet and the purlins and a insulating cushion block fixedly connected to the bracket, wherein the bracket positioned between the metal profiled sheet and the purlins and the insulating cushion block fixedly connected to the bracket are both embedded in the glass wool so as to brace the metal profiled sheet away from the purlins. The reasonable thickness of the bracket and the insulating cushion block of the utility model makes up for the impact of the insulating wool by the bracket and the insulating cushion block and guarantees the minimum thermal resistance value at the purlins part.

Description

The embedded anti-cold bridge insulation construction of metal die plank house face

Technical field

The utility model relates to the embedded anti-cold bridge insulation construction of a kind of metal die plank house face.

Technical background

That novel metal contour plate roofing has is handsome in appearance, the construction period is short, recovery rate is high, many decades need not be safeguarded, the interior space is big, be convenient to multinomial advantage such as Weaving device distribution, be the form of structure that China actively applies, therefore adopted by increasing textile enterprise.General spinning and weaving workshop require interior temperature at 20-30 ℃, relative humidity at 65-85%, the northern area of China winter temperature cold, the lowest temperature is many below-5 ℃.So, indoor/outdoor temperature-difference is big, relative humidity is high, and under this environment, again because heat insulation layer structure design unreasonable, at the as easy as rolling off a log generation large tracts of land of deck condensation and dewfall, this class engineering problem is difficult to solve.For example at first heat insulating material is installed the cold bridge in slit, and promptly most of metal die plank house closure insulation all is assembled into by many independently heat insulating materials, and dealing with improperly of assembly unit slit is exactly cold bridge; The secondth, the self threading pin cold bridge, cool ambient air is directly passed to indoor by self threading pin; The 3rd is the heat insulating material of the insulation layer compression cold bridge when being glass wool: objective reality is to the compression of glass wool in the work progress, and purlin and colored steel push glass wool without any processing between the two to the extruding of glass wool, does not almost have any heat-insulating property herein.The metal crimp template directly contacts with outside air temperature, and its temperature is identical with outside air temperature.The inner surface of metal crimp template will produce condensed water during winter, and these condensed waters are penetrated in the insulation layer, and the heat-insulating property of insulation layer will be had a greatly reduced quality, thereby causes the architecture indoor surface temperature to be lower than dew point, produces condensed water.When condensed water is serious, fall short of success for lack of final effort in whole roof, can only take off top transformation again, certainly will cause enormous economic loss.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of winter not dewfall, do not produce the embedded anti-cold bridge insulation construction of metal die plank house face of condensed water.

The utility model adopts following technical scheme:

The utility model comprises the glass wool that is laid on the purlin and presses the metal crimp template of putting on glass wool that support between metal crimp template and purlin and the insulation cushion block of fixedlying connected with support are embedded in the glass wool.

The utility model insulation cushion block is fixedlyed connected with purlin by self threading pin.

The utility model good effect is as follows: the utility model between metal crimp template and purlin support and the insulation cushion block of fixedlying connected with support be embedded in the glass wool, be embedded in interior support of glass wool and support cushion block supporting between metal crimp template and the purlin, the support of the utility model Rational Thickness and insulation cushion block, remedy the influence of support and purlin, guarantee the minimum thermal resistance at purlin place the heat-preservation cotton extruding.

Description of drawings

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the prior art structural representation.

In the accompanying drawings: 1 glass wool, 2 self threading pins, 3 metal die Lamb wave peaks, 4 metal crimp templates, 5 cushion blocks, 6 purlins, 7 supports.

The specific embodiment

The building interior surface temperature will produce condensed water so long as be lower than the place of dew point, and the heat insulating material effective thickness at any position is lower than the thinnest numerical value in the insulation layer, and interior surface temperature will be lower than dew point.Therefore, guaranteeing effective minimum thermal resistance at any position in the insulation layer, is the foundation of heat insulation layer structure design, solves the key point of workshop condensed water especially.24 ℃ of interior temperatures, air humidity 80%, any object, certain surface of position temperature are lower than 20 ℃, and this position will produce condensed water, claims " dewfall " again, and this temperature claims " dew point ".Want building and do not produce condensed water, must make the indoor any position of building surface temperature be not less than this dewpoint temperature.

Be designed to example with certain engineering heat insulation layer structure.Ambient conditions: 25 ℃ of interior temperatures, relative humidity 75%, winter extreme temperature-20 ℃.Selecting glass wool is heat insulating material.With reference to " civilian construction energy-saving design standard " JGJ26-95, roof, this area thermal transmittance limit value is taken as 0.60, looks into " OWENS CORNING company glass fibre cotton felt " handbook, the 16kg/m of its company ³, 100mm blanket of glass wool thermal resistance value R=2.56, air thermal resistance value Re+1=0.15, so total heat resistance=2.56+0.11=2.67, Coefficient K=1/2.67=0.37 considers amplification coefficient 1.4, then 0.37*1.4=0.52＜0.6.Meet energy-conservation requirement.Look into the dew point table by above-mentioned working environment, dew point is 19 ℃.22 ℃＞19 ℃ of surface temperatures satisfy the anti-condensation requirement.The thinnest effective cotton of this engineering insulation layer is 16gK/m ³, 100mm, minimum thermal resistance value=2.56.

Glass wool 1 thickness is selected and fissure of displacement structure: " the effective cotton thickness of the thinnest insulation is 16Kg/m by thermal technology's result of calculation ³, 100mm " width of its every volume is 1.2 meters, considers the installation slit of objective reality, selects 16Kg/m for use ³, cotton that 150mm is thick, divide three faults seam to lay, all be 100mm at its cotton effective thickness in any slit.This structure has guaranteed that the minimum thermal resistance is 2.56.Glass wool 1 fissure of displacement structure remedies the installation slit defective of objective reality, has guaranteed the minimum thermal resistance at place, any slit.

The selection of concealed metal crimp template 4: general spinning and weaving workshop span is all bigger, glass wool 1 unsuitable water, this just requires the water proofing property of waterproofing course high.Select concealed 760 templates, its crest 76mm, ponding can not cover crest yet when individual plates was longer, 180 ° of interlocks of the connection of adjacent two boards, the hole is not followed closely on the surface, and water is difficult to enter insulation layer, add the fluid sealant bar at interface in case of necessity, the interlock slit seals fully, guarantees the drying of insulation layer.

As shown in Figure 1, the utility model comprises the glass wool 1 that is laid on the purlin 6 and presses the metal crimp template of putting on glass wool 14, support 7 between metal crimp template 4 and purlin 6 and the insulation cushion block 5 of fixedlying connected with support 7 are embedded in the glass wool 1, and insulation cushion block 5 is fixedlyed connected with purlin 6 by self threading pin 2.

The utility model insulation layer can not excessive compression keep certain degree of packing again at purlin 6 places.The insulation cushion block 5 that between metal crimp template 4 and purlin 6, is provided with support 7 and fixedlys connected with support 7.Keep 100mm between metal crimp template 4 and the wingceltis bar 6, use the support 7 following pad 30mm extruded sheets of increasing 70mm to make insulation cushion blocks 5 and come together support, prevent the compression of

metal crimp template

4 and 6 pairs of insulation layers of purlin.It is indoor that extruded sheet insulation cushion block 5 can stop support 7 that cold air is imported into, for reducing support 7 cold air passed to self threading pin 2, and self threading pin 2 passes to indoor influence again, and support 7 can be made thermal-insulating type.Support will be made slip when the length of metal crimp template 4 was excessive, offset the influence of expanding with heat and contract with cold.Compressive strength＞the 500KN/m of extruded sheet insulation cushion block 5 ²Add support 7 Hui Tianmian work on every side, just can guarantee the minimum thermal resistance 2.56 at purlin 6 places, support 7 positions, the height sum of support 7 and insulation cushion block 5 is greater than the height at metal die Lamb wave peak 3.The height sum of support 7 and insulation cushion block 5 is less than the height sum of metal crimp template 4 and glass wool 1.Support of increasing 7 and insulation cushion block 5 when this structure reaches certain thickness, just can guarantee the minimum thermal resistance at purlin 6 places supporting between metal crimp template 4 and the purlin 6.Insulation cushion block 5 is fixedlyed connected with purlin 6 by self threading pin 2.The support of Rational Thickness and insulation cushion block 5 remedy the influence of 6 pairs of insulations of support 7 and purlin glass wool, 1 extruding.Insulation support 7 stops effectively from fixed support self threading pin 2 and imports indoor cold air into.

Claims

1, the embedded anti-cold bridge insulation construction of a kind of metal die plank house face, it comprises that the glass wool (1) that is laid on the purlin (6) and pressure put the metal crimp template (4) on glass wool (1), it is characterized in that support (7) between metal crimp template (4) and purlin (6) and the insulation cushion block (5) of fixedlying connected with support (7) are embedded in the glass wool (1).

2, the embedded anti-cold bridge insulation construction of a kind of metal die plank house face according to claim 1 is characterized in that being incubated cushion block (5) and fixedlys connected with purlin (6) by self threading pin (2).