DE2165411A1 - Low pressure climate con vector - Google Patents

Description

BE 14 043

Additional patent to the main patent (application Ho.P 19 6l 986.4)

Hugo Rickenbach, St. Gallen

Low pressure air conditioning convector

The invention according to the main claim of the main patent (application No. P 19 6l 986.4) relates to a low-pressure air conditioning convector for heating by means of combined radiation and convection and for ventilation of rooms, which is arranged on a wall and consists of a radiator and an air-conditioning system Part consists, and is characterized in that the ventilation part between the part forming the thermal part visible radiator and the wall is arranged.

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In one embodiment of the low-pressure clinical convector according to According to the main patent, the supply air enters a vertex chamber and flows from there into an air chamber, between the supply air distribution chamber and the air chamber is arranged exn a narrowed cross section, which is designed as a nozzle-shaped slot, wherein one wall of this nozzle-shaped slot is designed as a resilient tongue is whose distance from a fixed wall can be changed by a rotatable eccentric shaft, so that the flow cross-section of the nozzle-shaped slot can be adapted to the respective operating conditions.

This embodiment of the nozzle-shaped slot has the disadvantage that, on the one hand, it is a relatively expensive one This represents a solution and, on the other hand, does not provide sufficient insulation for the noise from the supply air ducts. Next points this Execution does not have the possibility of supplying secondary air, which is true in certain rooms, for example in hospitals, not, but may be desirable in other rooms, for example in offices.

The object of the present invention is to provide a low-pressure air conditioning convector to create that does not have the disadvantages of the aforementioned design according to the main patent.

This object is achieved according to the invention by a low pressure

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Air-conditioning convector of the type described at the outset, in which m the flow direction of the primary air between the ventilation part and a supply air duct or supply air ducts for
the primary air is an antechamber designed as a sound filter
is arranged, the outlet opening into a nozzle slot
opens, which separates the antechamber from an air chamber for the primary air or primary and secondary air and is delimited by a tongue. This achieves an even distribution of air and soundproofing with regard to duct noise compared to the air chamber.

The tongue expediently consists of sound-absorbing material and has a seal forming a gap between the outlet opening the antechamber and the air chamber seals.

This achieves additional soundproofing of the duct noise.

The antechamber, the outlet opening and the nozzle slot can also be used have an axial extent which corresponds approximately to that of the air chamber. This achieves a Particularly uniform air distribution over the entire length of the ventilation part.

The antechamber is expediently set back opposite the air chamber.

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set and the outlet of the nozzle slot against the lower Completion of the air chamber directed. In this way, further sound absorption of the duct noise is achieved.

The width of the nozzle slot by means of intermediate layers is expedient adjustable, whereby a dosage of the primary air volume is possible.

The lower end of the air chamber can also be adjustable Have slide with which a slot for the secondary air induction is adjustable between a fully closed and a fully open position. So that can Primary / secondary air ratio can be set.

The rear wall of the air chamber expediently has thermal insulation which avoids unwanted heat or radiation losses after the wall «

The invention is shown in the accompanying drawings using an exemplary embodiment which is a vertical section through a Shows, illustrated and described below.

1 with a wall is referred to, for example below a window. In front of the wall 1 is a wall cover 2 for receiving

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of preferably insulated heating cables 3, one or more Arranged supply air channels 4 for the primary air and an antechamber 5, in which the latter the supply air channel or the supply air channels 4 open. A rotatably mounted throttle valve 6 is arranged in the supply air duct 4, with which the amount of supply air can be adjusted.

A low-pressure air-conditioning convector, designated as a whole by 7, has one with the heating lines 3, not shown Way connected radiator 8, which can be designed, for example, as a heating wall, on its non-visible rear side Slats 9 are arranged, which in the air chamber 10 for Primary and secondary air protrude and serve an increased heat transfer to the air rising in the air chamber 10. The air chamber 10 is delimited from the wall 2 by thermal insulation 11. A closing grille 11a delimits the air chamber 10 up.

The antechamber 5 has an outlet opening 12 in the form of a relatively large slot through which the supply air exits and is accelerated in a nozzle slot 13 which is formed by a wall 14 of the antechamber 5 and a tongue 15 is. The tongue 15 is expediently made of sound-absorbing material and is provided with intermediate pieces 16 by means Pins 16a attached to wall 14. By choosing intermediate pieces 16 different thicknesses can be the size of the nozzle slot

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13 and thus the desired air volume can be set. the Tongue 15 is arranged in such a way that the nozzle slot 13 is directed downwards towards the lower end 18 of the air chamber 10. Between the outlet opening 12 and the air chamber 10, a seal 17 is arranged that a short circuit between the Pre-chamber 5 and the air chamber 10 prevented.

The lower end 18 of the air chamber 10 has a slot 19, through which secondary air is sucked in by the primary air rising from the lower end 18 by induction can be. The size of the slot and thus the amount of secondary air can be adjusted by means of a slide with a guide plate 20 and at the same time the deflection of the primary air upwards xn the Air chamber 10 can be made.

The low-pressure air-conditioning convector described makes it possible to effectively isolate the noise in the supply air ducts. Characterized in that the pre-chamber 5, designed as a sound filter, is set back relative to the air chamber 10 and between the Antechamber 5 and the air chamber 10, the nozzle slot 20 and the tongue 15 are arranged, the sound insulation is extraordinary effective. Nevertheless, no more space is required for the installation of the low-pressure air-conditioning convector than is required for the Accommodation of the supply air ducts is already necessary. Due to the adjustability of the slot 19 for the supply of the secondary air by means of, for example, a screw 21

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adjustable slide can meet all air conditioning requirements of rooms, be it through operation with primary air alone or through operation with secondary air mixed primary air.

The low-pressure air-conditioning convector described can also be used in high-pressure networks can be used, the pressure in the prechamber 5, which is designed as a sound filter, is reduced noiselessly by built-in expansion elements.

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Claims (1)

Claims f l. \ Low-pressure air conditioning convector for heating using combined V- / radiation and convection and for ventilation of rooms, the is arranged on a wall of the room and consists of a radiator and a ventilation part, the ventilation Part is arranged between the thermal part forming visible radiator and the wall, according to the main claim of the main patent (application No. P 19 6l 986.4) characterized in that in the flow direction of the primary air between the ventilation part (9, 10) and a supply air duct (4) or supply air ducts for the primary air, an antechamber (5) designed as a sound filter is arranged, the The outlet opening (12) opens into a nozzle slot (13) which separates the antechamber (5) from an air chamber (10) for the primary air or primary and secondary air separates and is delimited by a tongue (15). 2. Low-pressure air conditioning convector according to claim 1, characterized in that that the tongue (15) consists of sound-absorbing material and has a seal (17) which has a Seals the gap between the outlet opening (12) of the antechamber (5) and the air chamber (10). 209832/0652 3. Low-pressure air conditioning convector according to claim 1, characterized in that that the antechamber (5), the outlet opening (12) and the nozzle slot (13) have an axial extension, which approximately corresponds to that of the air chamber (10). 4. Low-pressure air conditioning convector according to claim 1, characterized in that that the antechamber (5) is set back in relation to the air chamber (IQ) and the outlet of the nozzle slot (13) is directed against the lower termination (18) of the air chamber (10). 5. Low-pressure air conditioning convector according to claim 1 or 3, characterized characterized in that the width of the nozzle slot (13) can be adjusted by means of intermediate layers (16). 6. Low-pressure air conditioning convector according to claim 1, characterized in that that the lower end (18) of the air chamber (10) has an adjustable slide (20) with which a slot (19) for the secondary air induction between a fully closed and a fully open position is adjustable. 209832/0652 - ίο - 7. Low-pressure air conditioning convector according to claim 1, characterized in that that the rear wall (2) of the air chamber (10) has thermal insulation (11). December 20, 1971
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