DE202008016914U1 - Arrangement for dehumidifying and air-conditioning rooms - Google Patents

Abstract

arrangement for non-destructive and sustainable building dehumidification of masonry, ceilings and floors of rooms like basements or other underground spaces, by doing so in that the arrangement as essential elements at least one Air heat pump (2), an air duct system (3) with suction (4) for the extraction of indoor air, an air duct (5) for suction outside air, a humidity sensor (6), an indoor temperature sensor (7), an outdoor temperature sensor (8) and a central Control and control unit (9).

Description

The The invention relates to an arrangement for building dehumidification, preferably of masonry, floors and ceilings in cellars or other underground spaces with simultaneous heat recovery.

The Ingress of moisture into existing masonry can be costly by retrofitting horizontal and / or vertical barriers can be reduced or prevented.

Problematic Here are the associated costs and not always available accessibility of places for or introducing the required blocks.

Known are also injection methods for reducing in a masonry penetrating moisture, causing uncontrolled water retention can come behind the masonry.

to Dehumidification of masonry will also include special plasters, active drying methods and Electroosmosis used, whose effectiveness is limited.

This usual Ways to reduce the ingress of moisture as well as the dehumidification of masonry are only symptomatic and partially effective.

From the prior art, beispielseise from the document DE 44 12 251 A1 a method and apparatus for dehumidifying buildings in the basement is known, according to which the air in the basement is replaced by forced ventilation against colder air with lower moisture content from the environment of the building periodically.

In Breakthroughs of the basement exterior wall are fans for this purpose arranged by sensors for moisture content the air and its temperature are controlled.

It is only an unused discharge of wet and warm Air from the basement made outdoors.

The Procedure can only apply as long as the outside temperature lower than the temperature in the basement with the walls to be dehumidified.

The The object of the invention is an arrangement for a non-destructive and sustainable dehumidification of Walls, ceilings and floors of rooms like basements, underground duct systems and cavities to develop, with the resulting heat during dehumidification should be used.

The Task is specified by the protection claim 1 Characteristics solved. Preferred developments emerge from the dependent claims.

The Arrangement for dehumidifying cellars or underground spaces consists of at least one air heat pump, an air duct system, a central control and control unit, a humidity sensor and temperature sensors.

optional are a buffer and a feed element for a heating system of the building, which also includes a water heater can, integrated into the arrangement.

The Suction side of the air heat pump is with the air duct system connected to the indoor air intake openings in the existing rooms of a cellar or a number intake openings in underground rooms as well having an intake opening for outside air.

The Supply on the suction side of the air heat pump is convertible from inside air to outside air. By means of central control and control unit and a guide takes place the changeover of the air supply automatically, controlled depending on the temperature and relative humidity in the basement and the outside temperature.

With same dependencies, the exhaust air is discharged Air heat pump via one by means of another Guide device switchable air duct to the outside air or the basement rooms.

When essential control variables for controlling the arrangement for dehumidification by means of the central control and control unit serve the outside temperature and the setpoints of the internal temperature and the relative humidity in the basement rooms.

at Values of high relative humidity and corresponding temperature in the basement rooms as well as higher outside temperatures from a centrally installed humidity sensor and a temperature sensor initiated, the air heat pump put into operation.

through one in the air heat pump usually integrated Fan is the humid air through the duct system sucked over the on the "cold" side of the Air heat pump located heat exchanger out, cooled and dehumidified by condensation.

Via the exhaust air side of the air heat pump the dehumidified air is returned in the free flow of an end in the basement area return air duct or a return air duct system back into the rooms to be dehumidified.

The heat" Side of the heat exchanger of the air source heat pump is Conveniently connected to a buffer memory, to the the deprived of the room air during dehumidification and by compaction the coolant of the air source heat pump Heat is dissipated.

in the If necessary, the heat from the buffer memory in a known manner supplied to the heating system of the house.

optional Can the "warm" side of the heat exchanger of the Air heat pump via the feed element directly be connected to the heating system of the house.

The relative humidity of the room air in the rooms to be dehumidified is reduced to a defined minimum value of z. B. 65 percent, lowered and to a minimum temperature, of z. B. 8 degrees Celsius, cooled.

at Higher heating demand of the heating system is the Air no longer or no longer exclusively from the to be dehumidified rooms, but also in addition sucked in from outside the building.

at Temperatures of the outside air below a defined Minimum value of z. B. minus 5 degrees Celsius, this can by means of a heat exchanger preheated in the supply air duct become.

With the structure for building dehumidification in basements or other underground Spaces will become a controlled indirect withdrawal of building moisture the room air realized by the dehumidified room air the moisture can absorb from the building and so gradually the building moisture reduced or after adjustment of the equilibrium their moisture content is kept constant. The arrangement allows for this Do the building dehumidification without interfering with the building structure and the use of heat energy obtained with the air heat pump, in particular the heat energy of the so-called condensation heat, for the energy circulation of buildings.

In Basements or other underground spaces will be the masonry, deprived of moisture from the floors and ceilings, whereby a permanent prevention of the rising of moisture as well salts contained in the building material in the outer and inner walls as well as ceilings over these rooms is achieved.

waterlogging is prevented in the mentioned rooms.

through the achieved weather-independent humidity and temperature stability in basements or other underground spaces the structural stability of the structural parts is stabilized.

The Dehumidification and dehydration of the walls, floors and blankets continue to improve the heat insulation capacity of the rising masonry as well as minimizing the risk of corrosion of steel components, such as girders.

In special cases, the usability of cellars or other underground spaces with the described arrangement only enabled or extended.

The Invention will be described as an embodiment with reference to

1 as a schematic representation of the arrangement for building dehumidification using the example of a cellar
explained in more detail.

To 1 has one in the rooms of a cellar 1 installed arrangement for dehumidifying walls, floor and ceiling as essential elements at least one air heat pump 2 , an air duct system 3 with suction openings 4 in the individual rooms, an air duct 5 for intake of outside air, a humidity sensor 6 , an indoor temperature sensor 7 , an outdoor temperature sensor 8th and a central control unit 9 on.

A suction side 10 the air heat pump 2 is via a guide 11 with the air duct system 3 and the air duct 5 connected. The conversion of the guide 11 is carried out automatically, depending on the outside and inside temperature and the relative humidity, controlled by the central control unit 9 ,

Provided as priority targets the relative humidity in the basement and the internal temperature are set, arise in particular, subsequent states in the function of Arrangement, wherein the humidity or temperature values to one have defined tolerance range.

If the relative humidity in the basement is greater than 65 percent and the internal temperature is not lower than 8 degrees Celsius, then the air heat pump is used 2 the air sucked from the rooms of the cellar. The same applies if, regardless of the relative humidity, the internal temperature 8th Grad Celsi exceeds us.

An exhaust side 12 the air heat pump 2 is via another guide 13 with a leading out of the basement exhaust duct 14 and a return air duct 15 connected to the basement area.

The aspirated from the basement moist warm air is in a known manner via a heat exchanger on the "cold" side of the air heat pump 2 led, dehumidified and cooled, and return to the room air.

The delivery of dehumidified and cooled air via the return air duct 15 from which the air flows back into the basement area in free flow, or via an optional, to the return air duct 15 connected return air duct system 16 with outflow openings 17 be directed to the basement.

The Damping condensate is common Way dissipated.

The "warm" side of the air source heat pump 2 is with a cache 18 connected to the deprived of the room air during dehumidification and by compressing the coolant of the air heat pump 2 resulting heat is released and stored in this. If necessary, the heat from the buffer memory 18 over a connection 19 to a heating system 20 be discharged or if necessary by means of one in the return air duct 15 arranged heat exchanger 21 be used for heating the supply air.

The heating system 20 is also via a feed element 22 also with the "warm" side of the air heat pump 2 connected.

If the relative humidity in the basement is greater than 65 percent, but the internal temperature is lower than 8 degrees Celsius, which can also occur as a result of the heat extraction, so will the air from the rooms of the basement of the air source heat pump 2 sucked, but before the return via the heat exchanger 21 preheated, so that the indoor temperature setpoint of 8 degrees Celsius can be set again.

If the relative humidity in the basement is not greater than 65 percent and the internal temperature does not reach the target value of 8 degrees Celsius and there is a heat requirement, the heat is recovered with the air heat pump 2 from the outside air, with the heat to the heating system 20 and / or to the buffer memory 18 is delivered. The delivery of dehumidified and cooled air via another guide 13 and an exhaust duct 14 outward. In this operating condition, a reduction in the relative humidity in the basement is not needed and further cooling is avoided.

The control and regulation takes place by means of the central control and control unit 9 that have a bus system 23 is connected to all elements of the arrangement and controls their functions and monitors.

With based on setpoints of indoor temperature and relative Humidity realized dehumidification of masonry, floors and ceilings in basements or other underground spaces permanently dehumidified structural parts before and as a result a stabilization of the entire structure.

1

basement, cellar

2

air source heat pump

3

Air duct system

4

suction

5

air duct

6

humidity sensor

7

Internal temperature sensor

8th

Outside temperature sensor

9

central Control unit

10

suction

11

guide

12

exhaust side

13

Further guide

14

exhaust duct

15

Return air duct

16

Return air duct system

17

outflow

18

buffer memory

19

connection

20

heating system

21

heat exchangers

22

feed element

23

bus system

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4412251 A1 [0007]

Claims (6)

Arrangement for non-destructive and sustainable building dehumidification of masonry, ceilings and floors of rooms such as basements or other underground rooms, characterized in that the arrangement as essential elements at least one air heat pump ( 2 ), an air duct system ( 3 ) with suction openings ( 4 ) for the extraction of indoor air, an air duct ( 5 ) for the intake of outside air, a humidity sensor ( 6 ), an indoor temperature sensor ( 7 ), an outside temperature sensor ( 8th ) and a central control unit ( 9 ) having. Arrangement for non-destructive and sustainable building dehumidification according to claim 1, characterized in that the outside temperature and the setpoint values of the internal temperature and the relative humidity in basements or underground rooms controlled variables for the central control and control unit ( 9 ) are. Arrangement for non-destructive and sustainable building dehumidification according to claims 1 and 2, characterized in that a "warm" side of the air heat pump ( 2 ) for storing the extracted during dehumidification of the room air and by compressing the coolant of the air heat pump ( 2 ) formed heat with a buffer memory ( 18 ) connected is. Arrangement for non-destructive and sustainable building dehumidification according to claims 1 to 3, characterized in that the buffer memory ( 18 ) for dissipating heat ( 19 ) to a heating system ( 20 ) having. Arrangement for non-destructive and sustainable building dehumidification according to claims 1 to 4, characterized in that the "warm" side of the air heat pump ( 2 ) via a feed element ( 22 ) with the heating system ( 20 ) connected is. Arrangement for non-destructive and sustainable building dehumidification according to claims 1 to 5, characterized in that for heating the supply air in a return air duct ( 15 ) a heat exchanger ( 21 ) is arranged.