DE3446365A1 - METHOD AND DEVICE FOR PREVENTING THE ENTRANCE OF EXTERNAL AIR THROUGH BUILDING INPUTS - Google Patents

Description

Method and device for preventing the ingress of outside air through building entrances

The invention relates to a method and a device for preventing the penetration of cold outside air Openings such as the main entrances or similar Entrances, of industrial buildings.

The method according to the invention should in particular be a Heat loss due to the ingress of significant amounts of outside air can be avoided by means of a barrier that prevents that cold outside air passes through the main open entrance of a building and inside the building ci rku1iert.

In particular, taking into account the fact that the Fuel costs keep increasing, it is very important to reduce the energy consumption in buildings and the comfort to improve the interior of, for example, residential buildings .

This is especially true of industrial buildings where the large entrances through which vehicles can pass, large heat losses due to the high natural access from outside air, whereby likewise by the penetration of outside air into the inhabited part of the building climatic problems arise.

Indeed, it is common for industrial buildings to be large Entrances, such as the main doors, the passageways for trucks or the like, always should remain open for vehicles to pass through or the vehicles loaded with goods or goods from the

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Vehicles can be unloaded.

It can be seen that in these cases large amounts of heat are consumed because of the flow of cold air through them Openings entering the interior of the building.

There are already various possibilities to avoid this has been proposed. One way is to be hot or heated air for this purpose through ventilation openings to let out, which are arranged inside the rooms themselves in the upper part of the doors.

Such a system, for example in department stores is used, however, entails a high energy consumption since it does not heat the incoming air is able to avoid heat loss.

A second newer option is to use facilities to provide suction that causes the heated or hot air to collect in the upper area of the building and which then has one or more fans, which are arranged one behind the other, this air with a high Push the speed out of an opening in the building floor parallel to the main entrance to create a jet of air in the shape of an inverted cone with a cone angle of about 15 °.

In such a system, warm air becomes the upper part of the building sucked in and at high speed to the Main entrances are blown so that the heat is used that collects in the upper part of the rooms to heat the air jet.

Also such a system? Iiat many shortcomings. In fact, a large part of it escapes through the opening blown air to the outside, which creates a noticeable warmth

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loss means. It still happens that a certain amount of cold air passes through other openings in the building is drawn inside and thus compensates for the heated air that was previously sucked in and distributed to the outside. at Wind or with very high doors, the air jet in the upper part is weaker, which enables the entry of cold air or extremely strong blowing out of the hot air is necessary.

In order to avoid this, in the method according to the invention A double-acting barrier is formed to the outside air which prevents cold air from entering the interior of the building entry.

In the following, a particularly preferred embodiment of the invention is explained in more detail with reference to the accompanying drawing described. Show it

1 shows a device in a perspective view for carrying out an embodiment of the method according to the invention and

FIG. 2 is a sectional view of that shown in FIG Contraption.

In the vicinity of an opening 1, for example the main door or a similar opening in the wall 2 of an industrial building a device is arranged which has a horizontal upper tube 3 and a vertical tube 4, which are connected to each other preferably by a centrifugal fan 5 are connected, which is driven by an electric motor 6 or a similar device.

The pipe 4 is connected to a third pipe 7, the

is located under the floor of the building.

The pipe 3, which runs the entire length of the opening 1, is provided at its lower part with an opening 8 over the entire length of the pipe itself.

The outside of the tube 7 has a fine ventilation hole 9 in connection, which runs obliquely in the manner shown in FIG. The centrifugal fan 5 sucks in air from the pipe 3 and pushes this air through the pipes 4 and 7. From the pipe 7, the air passes under a high Speed through the ventilation hole 9, so that a Air jet is formed, which is directed upwards along a plane that continues in from the building wall Direction deviates upwards. This means that the distance of this level from the building wall increases in the upward direction.

The opening 8 in the tube 3 is larger than the ventilation hole in the lower tube.

The speed of the air coming out of the vent hole 9 emerges, becomes less and less with increasing height above the ground, so that the air by means of the fan 5 through the Opening 8 of the pipe 3 is sucked in again and then recirculated.

This leads to a continuous circulation of the outside air, which acts as a barrier to prevent the ingress of cold outside air into the building, or in any case to a considerable extent Reduce dimensions.

In the upper area, where the outgoing air jet is weaker, a second ventilation hole , which is kept at a constant negative pressure, sucks in the outside air

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one that may otherwise be caused by the wind, for example could flow in.

The entire arrangement described above is arranged outside the building and does not require any thermal energy.

Various tests have shown that by suitably dimensioning the opening 8 and the opening 9 according to the size of the main door the amount of air entering is minimal and definitely through the fan is sucked in.

The method according to the invention thus consists in that in Close to the main entrance of a building and outside the building a cold air barrier is created to allow outside air to effectively prevent entry into the building.

This air is preferably sucked in on one side of the building opening and blown out on the opposite side.

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Claims (5)

Dr. F. Zumstein Sr. - Dr. E. Assmann Dipl.-Ing. F. Klingseisen - Dr. F. Zumstein jun. ο / / γοργ PAT E N TA N WALTE O * t * f 0 0 0 APPROVED REPRESENTATIVES FOR THE EUROPEAN PATENTAMI REPRESENTATIVES BE-. FORE THE EUROPEAN PATENT OFFICE Case EL / mf / 15802 Marco ZAMBOLIN, Milan, Italy Method and device for preventing the ingress of outside air through building entrances 1.Methods of preventing the ingress of outside air through building entrances, characterized in that the outside of the building for a forced circulation of air that is drawn in on the outside of the building to create a barrier near the entrances form that can prevent the ingress of outside air, 2. procedures for preventing the ingress of outside air through building entrances, characterized in that a) outside air is sucked in at one side of the inlet to be insulated and b) then apply this air at high speed the opposite side is blown out in order to push the air to the suction area and thus a Forming a barrier that can prevent cold air from entering from the outside. 3. The method according to claim 2,
characterized, that the air at high speed along a slightly inclined plane is blown out in order to force the air outwards. 4. Device for performing the method according to one of the preceding claims, marked by a suction pipe arranged on the outside of the entrance, which is provided on one side of the entrance itself, as well as an exhaust pipe, which is arranged on the opposite side, with both tubes connected to one another via a centrifugal fan are connected. 5. Apparatus according to claim 4,
characterized, that the openings in the exhaust pipe are smaller than have openings in the suction pipe.