DD142468A1 - METHOD FOR AIR-TREATING TREATMENT OF BUILT-OUT ELEMENTS - Google Patents

Abstract

The process uses only outside air through a Fan distributed over a pipe or duct route and via nozzles blown into the building with high momentum effect. By the high Impulse effect and the small exhaust vents, it is possible a Supply air jet with a high temperature difference draft-free in the To bring in buildings. Depending on the load request, the Volumetric flow variable. The variable volume flow can through Combination of speed control on the fan, adjustment of the Shovels on the fan and interval operation can be achieved. In front or after the fan can treatment stages of the outside air be used.

Description

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Field of application of the invention

^; The invention relates to a method for ventilation of building spaces. Primarily, this invention can be used in animal husbandry facilities.

Characteristic of the known technical solutions

From the inventory of known methods embodied in the prior art, for room ventilation, two typical representatives comparable to the method according to the invention were selected.

- ^ 1. Procedure where the injected supply air for the building to be ventilated has been mixed with circulating air. The disadvantage of this method is that constantly the entire air flow, outdoor and recirculated, must be transported, although only the outside air is of interest for the ventilation of the buildings. In addition, occurs in buildings where harmful gases must be removed, an additional corrosion stress on the inside of the air ducts. Due to the low outlet velocities at the outlet elements, heavy soiling occurs.

2. Method, which is described in the patent specification WP 85 163

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has been. The disadvantage of this method is that the equipment cost is relatively high. Similarly, the regulatory burden is high. The practical operation also showed a high susceptibility to interference.

Object of the invention

The aim of the invention is to eliminate disadvantages of known comparable methods by means of a simple ventilation method. In this case, a cost-effective and low-maintenance solution was found according to the priority application.

Explanation of the iesens of the invention

The invention includes a new technical method for the ventilation of 'building rooms by outlet elements with relatively small outlet openings of

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7. .10 m to 10 ^ m with high air velocities of 4 to 20 m / s. Here, the exiting air is given a high impulse and it can be degraded a hitherto unknown high temperature gradient between supply air and room air in! Free jet.

In order to further reduce the air flow rate at a given heat balance, as it corresponds to the required air volume flow to maintain the necessary minimum pulse, the air flow is pulse length modulated.

The useful effects of the invention are in particular that over the entire season without switching elements or other equipment expense outside air into the building space, without pretreatment of

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The high impulsive effect of a good flushing of the building space and the high momentum effect simultaneously in the summer in the primary use case of animal intensive care in the residence area of (animals a relatively high cooling by increased air velocity is achieved In contrast, a smaller cooling size achieved by low energy consumption of the air flow rate is reduced.

The good flushing of the building space is substantially supported by the formation of a surface jet, caused by the small, linear distance of the exit elements from each other.

embodiment

The feasibility of the invention is given in all ventilation systems that are used for ventilation of building spaces and especially where the mentioned beneficial effects are used. An embodiment of the invention is described below.

Process course in winter operation

A fan draws in outside air, conveys the air in a pipe or channel section and through outlet elements along the route in the form of nozzles, the same is evenly distributed in the building. If the temperature drops below the setpoint due to the existing heat balance in the building, the fan is briefly switched off by a separate control device. The frequency of the switching process is mainly determined by the

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Delay of the room air determined as a controlled system,

Procedure in transition operation

The existing in the building room heat balance can not turn off the fan and the temperature in the building continues to rise and the upper setpoint is exceeded »This will switch the fan to a higher power level. Due to the existing heat balance, the temperature in the building room drops again and the fan is switched back to the low power level.

Procedure in summer operation

Due to the heat balance in the building, the upper setpoint temperature is exceeded and the fan is constantly running in the high power level. Since the outlet elements remain constant in the opening cross-section, caused by the high exit pulse at the nozzle, large secondary air quantities are set in motion, which cause a higher air occupancy in the occupied area of the building and thus an additional cooling amount is generated.

Known further treatment stages of the air, such as filtering, heating, cooling, humidification, can be combined for the method. In particular, for the treatment stage moistening constructively the axial spray is suitable.

Claims (1)

-β "- 211 513 invention claim 1. A method for ventilation treatment of building spaces in which high heat loads and / or pollutants arise and cooling effects are to be achieved by indoor air velocities in the use of buildings, characterized in that by means of bosom with a small Ausiaßquerschnitt to generate a high exit velocity of the supply air to In the price jet to ensure a high temperature reduction outside the occupied zone, and that. the supply air is fed into the building in drop-out operation, thereby achieving a load adjustment of the flow, which at the same time the stability of the method is further ensured, and that an extension of the load adjustment of the flow is achieved that by Ihtervallbetrieb, using speed control of the Fan drive, higher heat and pollutant loads are dissipated and at the same time in the residence area of the building higher air velocities - be achieved for the purpose of a Abkühieffektes, and that -6-211 513. By means of upstream and / or downstream units, such as heating, cooling, filtering, humidification and heat recovery, this ventilation method for rapid or full air conditioning of building rooms can be provided, and that the port air preferably flows out of the building through openings and leaks »