DE112009001246T5 - Innovation for insulating insulation panels with heat exchange and ventilation ducts - Google Patents

Abstract

An insulation board containing a panel of insulating material and further comprising at least one internal longitudinal channel divided by a heat transferring member.

Description

The presented invention relates to direct and indirect improvements to insulating insulation boards. More particularly, the presented invention relates to an insulation board incorporating a device for heat exchange and ventilation in buildings.

With ever-increasing standards for energy efficiency, ensuring the adequate but controlled supply of air to ventilate modern buildings is crucial; in particular with regard to the health of residents, the protection of building materials with regard to condensation, energy consumption and energy efficiency. In general, glass fiber wool and foams such. B. Polystyrene used in the construction industry which serve to increase thermal efficiency in buildings and reduce energy consumption.

JP2006307615 Figure 4 illustrates a frameless, heat-insulating, double-coated panel for mounting between the trusses of a building. The layered panel consists of a sheathing panel and an insulating panel, the insulating panel being mounted on spacers mounted on the first front, on the back of the sheathing Plate.

The spacers represent a first insulating layer which is placed between the sheathing plate and the insulating material. Further spacers are attached to a second front side of the insulating panel and the spacers provide a second ventilation layer between the roof structure and the insulating panel by attaching the insulating panel between the adjacent roof beams.

The insulating material is used to separate the two ventilation layers (and their respective airflows) with the insulating material placed between the ventilation layers to reduce heat transfer between the respective ventilation layers and to control interstitial condensation, rather than fresh air for to provide the residents.

JP2007024407 FIG. 10 illustrates a ventilation system in which a ventilating element is connected by a plurality of tubes to a series of ceiling mounted air intake and exhaust ports, the air intake ports removing depleted air from a space and passing it through a vent leading out of the building, while the air discharge ports communicate with Help a ventilating element direct fresh air from outside the building into a room. The ventilating element contains suction elements for sucking and supplying fresh air into a building, as well as sucking and discharging used air from the building.

While the insulation board of the JP2006307615 In order to prevent the loss of heat in the attic, it is thermally ineffective because in the process of ventilation stale, warm air is led out of a building, while at the same time fresh cold air enters the building. As a result, the temperature inside the building drops and - to compensate for the heat loss - it becomes necessary to use the heating system of the building. The same principle applies to the ventilation system JP2007024407 and poses a key problem in terms of the costs of building occupants and environmental damage. In addition, such systems result in a higher level of stagnant, humid air, which is undesirable for both occupants and building materials.

Accordingly, it is desirable to produce an insulating board which solves at least some of the problems mentioned and which is more thermally efficient for insulating buildings.

The presented invention provides an improved insulation board which also includes thermally efficient means of ventilating a building.

A first central aspect of this invention is that an insulation board is used which uses a panel with insulating material and also has an inner, longitudinal channel which is separated by a heat-transferring element.

Preferably, the heat-conducting member divides the withdrawal channel longitudinally along the main plane, which crosses with adjacent roof beams, wherein the insulation panels are repairable.

It is possible that the insulation board contains several internal channels. Suitably, the insulation board contains two internal exhaust ducts.

It is advantageous if the heat-transferring element contains a tissue for reinforcement.

Ideally, at least one internal exhaust duct crosses opposite longitudinal surfaces of the insulation board. It is better if at least one internal channel crosses over opposite longitudinal surfaces of the insulation board over the entire length of the insulation board.

In the best case, the internal exhaust duct has a filter that prevents the entry of, for example, pollen, dust, insects, birds and small mammals.

Suitably, the insulating material is made of stretchable plastic foam. It is best if the insulating material consists of polystyrene, polyurethane or polyisocyanurate.

It is practical if the insulation boards are made so that they can be inserted between adjacent roof beams / trusses or between posts or in a cavity of the external wall. Ideally, each insulation board also includes other safety devices that allow the insulation boards to be attached to adjacent roof beams or posts.

It is useful if the safety devices are laterally projecting flanges and fasteners, ideally in the form of screws and nails. Optionally, the insulation boards can be linked with adjacent insulation boards.

Alternatively, the insulation board safety device is an expandable foam precursor composition which serves to fill existing gaps between panels and the corresponding roof beams. Ideally, the foam precursor composition is a sprayable gel or sprayable foam. Alternatively, the security device is an adhesive tape consisting of a conventional adhesive side for attaching the adhesive tape to the insulating panel and a stretchable foam precursor composition covered by a tear strip on the second side, wherein the stretchable foam precursor composition is activated by the peel of the tear strip ,

Ideally, the insulation boards can be linked to vertically adjacent boards. Alternatively, the panels are adjacent to adjacent panels and gaps between panels can be filled with expandable foam, if desired.

• i) eine Mehrzahl von Dämmplatten wie oben beschrieben
• ii) eine Mehrzahl von Luftabgabe- und Luftaufnahmeanschlüssen; sowie
• iii) ein Rohrsystem das zwischen mindestens einen internen Kanal jeder entsprechenden Dämmplatte und die Anzahl von Luftabgabe- und Luftaufnahmeanschlüssen zwischengelegt ist

A second key aspect is that the present invention provides a ventilation system for a roof or a wall. The system consists of:

• i) a plurality of insulating panels as described above
• ii) a plurality of air discharge and intake ports; such as
• iii) a piping system interposed between at least one internal channel of each respective insulation board and the number of air discharge and air intake connections

It is possible that the system further comprises a connector. Ideally, a piping system is placed between the connector and at least one internal channel of each respective insulation board, as well as the connector and the number of air discharge and air intake ports. It is good if the connector contains a system control device to isolate the airflow and connect through the pipe system certain air discharge and air intake connections to a specific position in the building. This arrangement allows adjustments to the system and creates a plurality of 'closed ventilation systems' to prevent noise transmission, for example caused by the ventilator in the bathroom or the kitchen, to quieter rooms such as the bedroom.

Ideally, the connector has one or more connector filters. These should be the most interchangeable and remove particulate matter such as dust and pollen that can enter from outside the building.

It is useful if the air intake connections also have a room filter. It is best if the room filters are interchangeable. It is possible that the system will continue to include at least one fan to power the exchange of used air from the building with fresh air from outside the building. It is ideal if at least one fan can be controlled by a switch. It is best if the switch device is controlled by a simple mechanical device such as a specific switch or light switch. Alternatively, the switch device may be controlled by one or more sensors; For example, such sensors that react to carbon dioxide, oxygen, moisture or motion in a particular space. Ideally, the switch also includes a timer, so that when in use, the channelless insulation board is also functional for a defined period of time after the switch device has been deactivated.

It is useful if the system additionally contains a plurality of channelless insulation boards. It is best if the ductless insulation boards are mounted where it is impractical to mount insulation boards as described in the first aspect of the invention.

A third central aspect is the assumption that the use of the insulating board is done in a roof structure or a wall cavity as described above.

The above and other explanations of this invention will now be described in detail described, attached are visual sample drawings:

Figure 3 is a schematic partial view of a roof with an integrated plate with respect to the first central aspect of the invention;

is a schematic partial view along the line AA in illustration 1 ;

-F show a schematic partial view along the line AA of an alternative arrangement of the discharge channel / the heat transfer element; such as

is a schematic partial view of an insulating and ventilating system with respect to the second aspect of the invention

and show an insulating and ventilating system ( 10 ) for a roof in which the system contains a number of insulating panels ( 11 ), made of a rigid insulating material such. As polystyrene, polyurethane or polyisocyanurate and with an internal exhaust pipe ( 12 ). The exhaust pipe ( 12 ) is through a pipe system ( 13 ) at the top of the plate ( 11 ) is connected to a connector (not shown) and is open at the lowest end of the roof to the outside. In preferred systems, the lowest end of the channel with the roof projection ( 50 ) and the gutter ( 51 ), so that condensation water, which forms in the channel, can drain into the gutter and fresh air can be sucked through the system from the roof projection.

In addition, the bottom end of the flue is equipped with a suitable filter (not shown) to prevent the ingress of, for example, dust, pollen, insects, birds and small mammals. In systems where the insulation panel channels are connected by pipes to the roof projection and the gutter, the pipe systems are equipped with such filters.

The exhaust duct contains an air intake pipe ( 12a ) which allows the air flow from the exterior to the interior of the building, as well as an air delivery pipe ( 12b ), which allows a flow of air from the inside of the building to the outside. The exhaust pipe is through a heat-transmitting membrane ( 14 ) into the air intake pipe ( 12a ) and the air delivery tube ( 12b ). This serves as an airtight seal between the air intake and air delivery tubes ( 12a ) and ( 12b ) and - when in use - allows the transfer of heat energy of the air streams within the corresponding tubes. The air intake pipe 12a has its origin usually at the roof projection ( 50 ) and the air delivery tube ( 12b ) ends in the gutter 51 ,

The stand-alone pipes ( 13a ) and ( 13b ) are via an exhaust duct (not shown) to the respective channels ( 12a ) and ( 12b ) connected to the respective air flow through the channels ( 12a ) and ( 12b ) to isolate. The pipes ( 13a ) and ( 13b ) in turn are directly connected to one or more air intake or air discharge ports within a room, without a connector is necessary.

In preferred illustrations, the system includes a connector that facilitates the interconnection of multiple insulation panels for ventilation in one or more rooms. In addition, in preferred embodiments, the connector includes a system control device to allow airflows in the piping system to be disconnected and for certain dispensing and receiving ports to be connected to a particular space in the building. Such a controlled system allows airflows in the connector to be matched and a number of insulating panels can be used to ventilate a single room such. B. the bathroom or the kitchen. In a controlled system, the connector is adjustable to actively isolate the ventilation paths between certain insulation panels and the air intake and exhaust ports from the general system. This creates a number of separate 'ventilation systems' within the main system. The flexibility thus created makes it possible to prevent noise transmission through the system; Noise coming from the fan in the bathroom or kitchen is not transmitted to quieter rooms like the bedroom. In addition, it allows the airflow to be changed to adjust the air exchange rate for specific rooms.

Furthermore, in preferred embodiments, the manifold includes one or more connector filters to remove dust or pollen from outside air from the system. In particularly preferred embodiments, this filter is interchangeable. The filters are also used to prevent the entry of insects, birds and micro-mammals into the system.

In preferred embodiments (not shown), a reinforcing fabric which supports the heat-transferring membrane is utilized to mitigate the effect of air pressure differential and mechanical pressure on the membrane. The provision of a reinforcing fabric is advantageous because the thermal efficiency of the plate is directly related to the thickness of the heat-transferring membrane and it is thus advisable to use extremely thin membranes for maximum heat transfer. Thus, insulation boards that provide a reinforcing Using fabrics, the use of very thin and thermally efficient heat-transferring membranes and are advantageous because they extend the life of such membranes, which in turn reduce the chance of failure, which can cause a short circuit of the plate between air streams.

The specific design of the internal piping system of each insulation board according to the invention provides a relatively large surface area for heat exchange and heat transfer. The positioning of the heat transferring membrane so that the temperature of the airflow coincides with the temperature profile of the entire insulation board ensures high thermal efficiency. The - (2D) Portions show exemplary channel designs.

In alternative embodiments, the insulation panels contain a plurality of exhaust ducts which represent an increase in the ratio between the surface of the heat-transferring membrane and the volume of the respective ducts. Thus, there is also an increase in the ratio of thermal transfer between two opposed air streams divided by the heat transfer membrane. shows an example of this. Through the ventilation, the reduction of heat loss from a building can be observed.

In the use of the described insulating and ventilating system, some insulation panels are placed between the inner and outer building structure to ensure a uniform temperature profile within the building. In particular and as in As illustrated, the channel (s) in each plate should be such that the heat exchange between the separate air streams takes place along the entire length of the channel and the temperature of the respective air stream thus corresponds to the temperature profile over the entire insulation board. That is, if an airflow within the duct has a temperature that is similar to the temperature of the interior of the building, the degree of insulation between the duct (and thus the airflow) and the interior of the building is less than the degree of insulation between the canal and the exterior of the building. Thus, the degree of insulation on the side of the insulation board exposed to the inside of the building falls from (B) to (C) (see ) along the plate. Conversely, the degree of insulation on the side of the insulating board which is exposed to the exterior of the building increases from (B) to (C) along the board, since the temperature of the air stream is directed towards the outside air temperature. Accordingly, the channel generally runs diagonally through the insulation board as in and shown.

As in and recognizable, the air intake channel ( 12a ) positioned in at least one pipe relative to the interior of the building, and by this arrangement, a large part of the heat escaping from the building through the air discharge channel ( 12b ) through the heat-transferring membrane ( 14 ) recoverable; this applies on days when the outside temperature is lower than the temperature inside the building. Conversely, if the temperature outside the building is higher than in the building and the building is cooled by an air conditioning system, the ventilation system helps to reduce the cooling load for fresh air intake by directing heat to the airflow outlet. Under such circumstances, it would be necessary to mechanically control the system, otherwise it would oppose 'thermal buoyancy' (see below).

As the temperature in the airflow outlet decreases, there is a tendency for condensation to form, particularly with air passing from the bathroom and kitchen, and this adds additional heat to the inflowing air over the separating membrane.

In preferred embodiments, the air intake and exhaust port include one or more replaceable filters. This is particularly important in air intake and exhaust ports located in the kitchen and to a lesser extent in the bathroom, as this prevents the entry and settling of evaporated edible oils and fats in the pipes of the system.

An insulating and ventilating system, as described in the presented invention, has central advantages over existing systems in terms of reducing energy consumption.

A common way to ventilate a building is to use an effect called 'thermal lift' (chimney effect). This effect makes use of differences in temperature and density between the air inside and outside a building. This effect results for example in a natural air flow between openings, such. As windows, doors, cracks or ventilation gaps in the upper or lower parts of a building. If the air inside the building is warmer than the outside temperature, the warmer air flows towards the top opening. The movement of warm air leads to a loss of pressure and cooler air is sucked from the outside into the interior of the building to replace the volume of warm air. Is the air inside the Building cooler than the outside, so the air from the lower opening flows out of the building and is replaced with warmer air from outside.

Due to the natural slope of a pitched roof construction, the insulation boards are also sloping, which promotes natural air circulation through the system as a result of thermal buoyancy. This reduces the need for the use of ventilators for artificially generated ventilation. In rooms where the proportions of moisture and warm air are higher, such. B. in the bathroom and the kitchen, the use of fans for artificial ventilation is recommended.

In a typical roof structure, due to the relatively high number of roof beams, it is not necessary for all the insulation panels to have a heat exchange function since it should not be necessary for all the insulating panels to be ventilated. In such systems, insulation boards that do not contain internal exhaust ducts are used / combined with the system described above to reduce costs. The use of such channelless panels is suitable for installation in a roof structure above a skylight.

The use of channelless insulation panels also means that the standard length of the insulation panels with a drainage channel can be used and are not required in a tailor-made length. In addition, the channelless panels can be easily cut to fit the length and slope of a particular roof. Due to the relatively lower manufacturing costs, channelless panels can be produced in a selection of lengths and widths to serve all roof sizes, thus making insulation possible where no ventilation is necessary. For example, the roof beams may be mounted on one side of a roof with insulation panels containing the channels, and where such panels provide adequate ventilation capacity for a building, channelless panels may be used on the opposite roof side.

The described system offers key benefits in terms of improving air quality and health compared to standard air conditioning systems, where most of the air passing through the system is recycled and only about 20% of that air is exchanged with fresh air to reduce the cooling load. A system like that of the present invention allows up to 100% of the air in a building equipped with air conditioning to be exchanged. This happens due to the air exchange with minimal loss of heat energy. In addition, the system leads to a reduction in the formation of condensation water in a building.

To facilitate installation of the insulation panels, the panels are available in various standard lengths and widths so that they fit between adjacent roof beams, see , ( 52 ). The panels are best fitted during the construction of the roof structure and before the laying of tiles and other coverings, but it is also possible to insert the panels after completion of the roof. An advantage of inserting the panels during the roof construction is that the insulation panels stabilize the roof structure. In addition, the panels can be adapted relatively quickly and can also be used to seal the elements with the building. The pipe system is retrofitted to connect the channel to one or more connectors as well as the system's dispensing and receiving ports.

An insulating and ventilating system including fans, controls and piping systems as described herein, provides an entire house with a ventilation system with the heat recovery device.

Although the panels are predominantly used in heating mode, they can also be used effectively in conjunction with artificial ventilation in cooling mode.

An insulating and ventilating system such as the described invention is also suitable for installation in an external wall.

SUMMARY

INNOVATION FOR INSULATED INSULATION PLATES WITH HEAT EXCHANGE AND VENTILATION CHANNELS

The presented invention relates to improvements to or related improvements to insulating insulation panels. In particular, the presented invention relates to insulation boards incorporating a device for heat exchange and ventilation in buildings. Described is an insulating and ventilating system for a roof or wall, which includes at least one longitudinal channel separated by a heat-transferring member, and an insulating panel and its use in a roof structure or a wall cavity.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2006307615 [0003, 0007]
• JP 2007024407 [0006, 0007]

Claims (12)

An insulation board containing a panel of insulating material and further comprising at least one internal longitudinal channel divided by a heat transferring member. An insulating panel as claimed in claim 1, wherein the heat-transferring member divides the channel lengthwise and along a principal plane crossing adjacent roof beams and makes the insulation panel repairable in use. An insulating panel as claimed in claim 1 or 2, wherein the panel includes a plurality of internal channels. An insulating panel as claimed in claims 1 to 3, wherein at least one internal channel crosses the opposite surfaces of the insulating board over the entire longitudinal length of the plate. An insulation board as claimed in any one of the preceding claims, wherein the internal channel further comprises a filter which prevents the entry of insects, birds or small mammals as well as particulate matter such as pollen or dust. An insulation panel as claimed in any one of the preceding claims, wherein the insulation panels are constructed so that they can be installed between adjacent trusses / rafters, posts or in the wall cavity of an external wall. An insulating and ventilating system for a roof or a wall, the system consists of: i) a plurality of insulating panels as claimed in claims 1 to 6 claimed; ii) a plurality of air discharge and intake ports; such as iii) a piping system set between at least one internal channel of the respective insulation board and a plurality of the air discharge and air intake ports An insulating and ventilating system as claimed in any one of the preceding claims, the system further comprising at least one fan that drives the exchange of stale air from the building with fresh air from outside the building. An insulating or ventilating system as claimed in claim 8, wherein a switch device is activated by at least one or more sensors responsive, for example, to carbon dioxide, oxygen, moisture or movement in a particular space. An insulating and ventilating system as claimed in any one of the preceding claims, wherein the system further comprises a plurality of channelless insulation panels. Use of an insulating board as described in claims 1 to 7 in a roof or a wall cavity. An insulating and ventilating system as essentially described herein, with reference to the accompanying drawings.

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