CN212388770U

CN212388770U - Air interlayer dehumidification wall structure

Info

Publication number: CN212388770U
Application number: CN202020474770.0U
Authority: CN
Inventors: 张会波; 何雪琼
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-01-22
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to an air interlayer dehumidification wall body structure, including outer wall body, middle air bed passageway (1), still include the internal surface humidifying material (2) of inlayer, outer wall body, middle air bed passageway (1) and internal surface humidifying material (2) bottom are equipped with air duct (8), the top is equipped with power ventilator (10), air duct (8) both sides be interior controllable tripe air inlet unit (6) and outer controllable tripe air inlet unit (9). Compared with the prior art, the utility model has the characteristics of it is miniaturized, modularization, nimble efficient, have fine market development prospect under the big background of building energy-saving development is currently valued.

Description

Air interlayer dehumidification wall structure

Technical Field

The utility model relates to a multi-functional composite wall especially relates to a novel wall body structure that possesses ventilation, moisture absorption, dehumidification function.

Background

Most of building envelope structures are made of porous medium materials, and in hot and humid climates, the porous medium envelope structures have strong wet migration processes, and the wet migration processes have very important influences on the thermal performance of the envelope structures, the building energy consumption and the indoor environment. The Yangtze river basin and the south area of China are in tropical and subtropical hot and humid climates, office and residential buildings in cities in the areas use a large amount of air conditioning systems, and due to the introduction of fresh air, the sensible heat load of an air conditioner is increased, and the latent heat load of the air conditioner is increased. In summer and transitional seasons, fresh air needs to be dehumidified, and once a centralized fresh air dehumidifying system is started, temperature reduction and dehumidification are often needed, so that the operation time of an air conditioner is prolonged, unnecessary energy consumption is consumed, and the method is one of the reasons for increasing the building energy consumption in the region.

The building enclosure structure in the Yangtze river basin and areas in the south of China has the advantages that the moisture migration of the building enclosure structure easily causes dew condensation on the surface of the interior of a wall body, so that mold breeding and wall surface degradation are caused, the service life and the attractiveness of the wall body are seriously influenced, the building maintenance cost is increased, the indoor air quality problem is caused, and the health of residents is influenced.

Chinese patent CN103835393B discloses a ventilation, moisture absorption and heat preservation wall structure, which relates to a composite multifunctional wall, and the wall structure has ventilation, moisture absorption and heat preservation functions at the same time, aims to integrate fresh air dehumidification with building facade enclosure structural members, solves the problems of complex structure, large occupied space, difficult flexible adjustment, high initial investment, large operation energy consumption and the like of the existing centralized fresh air dehumidification system and equipment, and realizes the regeneration of solid moisture absorption materials by utilizing solar energy. The wall structure is characterized in that a moisture absorption structure and a solar hot water pipe are arranged in an air layer channel, and an axial flow fan is arranged in an inner surface humidity control material (2) channel. The hot water in the solar heat collector flows through the solar hot water pipe in the middle of the air layer, the outdoor air flows from bottom to top under the action of hot pressing after entering, the moisture absorbed by the outdoor air is taken away through the dehumidifying structure to realize the regeneration of the solid moisture absorbent, and when the solar hot water is not enough to complete the regeneration process, the regeneration can also be realized by electrically heating the surface of the moisture absorbing structure through the thermal cable. The regeneration process is very dependent on solar energy, when the solar energy is insufficient, only an electric heating mode can be used, the energy consumption is increased, and water flows in the air layer, so that the operation cost is increased, and the regeneration process is inconvenient to manage and maintain. In addition, the moisture absorption structure is positioned in the middle of the air layer, only the air entering the room from the outside can be dehumidified, the dehumidifying material is a solid moisture absorbent (silica gel, molecular sieve and the like), the dehumidifying material is a relatively traditional and common humidifying material, and the dehumidifying effect is limited. And the honeycomb-shaped moisture absorption carrier is wrapped outside the moisture absorbent, so that the moisture absorption area is smaller. In addition, the fan is required to be operated to introduce outdoor air in the dehumidification mode of the structure, and electric energy is consumed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air interlayer dehumidification wall body structure in order to overcome the defect that above-mentioned prior art exists, realize that the integration of humidifying structure, air bed passageway, envelope component is integrated, have humidifying, ventilation and heat retaining function concurrently.

The purpose of the utility model can be realized through the following technical scheme: the utility model provides an air interlayer dehumidification wall structure, includes outer wall body, middle air bed passageway (1), still includes the internal surface humidifying material (2) of inlayer, outer wall body, middle air bed passageway (1) and internal surface humidifying material (2) bottom are equipped with a base member, this base member is inside to be set up air channel (8) of lining up indoor, outdoor and middle air bed passageway, the wall body structure top is equipped with power ventilator (10), air channel (8) both sides be interior controllable tripe air inlet unit (6) and outer controllable tripe air inlet unit (9).

The inner surface humidity control material is a humidity control plate with the thickness of 5-20 mm and is embedded on the keel. The humidity-controlling sheet is a sheet made of a conventional commercially available humidity-controlling material, such as a humidity-controlling material commercially available from INAX of Japan

The upper part of the keel is provided with a slide rail which can move integrally.

The outer wall body is composed of cement mortar (3), an insulation board (4), foam concrete or other light porous building blocks (5) which are arranged in sequence.

The bottom of the foam concrete or other light porous building blocks (5) is provided with a cross beam (7) for supporting the concrete above, and the upper parts of the foam concrete or other light porous building blocks (5) are provided with power ventilators (10).

The thickness of the air layer channel (1) is 20-60 mm.

The air inlet mode of the power ventilator (10) is downward side-discharge, and the air of the air layer channel (1) and the air channel (8) is sucked into the lower side of the power ventilator and is laterally discharged out of the room.

The inner controllable shutter air inlet device (6) and the outer controllable shutter air inlet device (9) are shutters which are respectively arranged on the inner side and the outer side of the air channel (8), the angle of the shutters is adjustable, and when the power ventilator (10) is opened, the two can not be opened simultaneously.

The working principle is as follows: the wall body can realize the functions of moisture absorption, dehumidification, natural ventilation and mechanical ventilation intermittent operation.

The wall has the functions of moisture absorption and dehumidification: when the indoor environment relative humidity is high humidity (more than 80%), the inner surface humidity regulating material (2) absorbs moisture to reduce the indoor environment relative humidity, when the inner surface humidity regulating material (2) reaches moisture absorption saturation, the outer controllable shutter air inlet device (9) and the power ventilator (10) are opened, the inner controllable shutter air inlet device (6) is closed, air with lower outdoor relative humidity is exhausted outdoors through the power ventilator (10) after passing through the air channel (8) and the air layer channel (1), partial moisture in the inner surface humidity regulating material (2) is taken away, the dehumidification rate can be changed by regulating the wind speed gear of the power ventilator (10), and after the inner surface humidity regulating material (2) is regenerated, the relative humidity of the indoor environment can be continuously adjusted by moisture absorption.

The wall has the functions of indoor natural ventilation and mechanical ventilation: the power ventilator (10) can adjust two modes of natural ventilation and mechanical ventilation, when the inner controllable shutter air inlet device (6) and the power ventilator (10) are opened simultaneously, indoor air enters the air layer channel (1) through the inner controllable shutter air inlet device (6), is discharged outdoors through the power ventilator (10), and ventilates the indoor air. Meanwhile, the angle of the inner controllable shutter air inlet device (6) can be adjusted according to needs, and then the ventilation quantity of indoor air is adjusted.

The utility model discloses air interlayer dehumidification wall body structure is integrated with internal surface humidifying material, air bed passageway, envelope component, can realize the indoor humiture, and the active, passive form of air volume is adjusted, and it is high to adjust the flexibility ratio, is favorable to building energy-conservation and user's health, accords with sustainable theory. The problems that the existing ubiquitous air conditioning system is high in energy consumption, the inner surface of a wall body is easy to dewfall, a centralized fresh air dehumidification system occupies a large space, is difficult to flexibly adjust, has high initial investment and the like are solved, and the air conditioning system has the characteristics of miniaturization, modularization, flexibility and high efficiency, and has a good market development prospect under the current large background that the energy-saving development of buildings is emphasized.

Compared with the prior art, the utility model discloses a characteristics and advantage lie in:

1) the building facade building envelope structural member is utilized to integrate the inner surface humidity-adjusting material, the air layer channel and the building envelope structural member, so that the wall has the functions of moisture absorption, dehumidification, natural ventilation and mechanical ventilation, and the dehumidification problem caused by fresh air entering the room is solved.

2) Compared with the dehumidification method of the existing air conditioning system, the dehumidification method has the characteristics of active and passive combination, miniaturization, modularization, high adjustment flexibility and the like, is beneficial to building energy conservation, improves the indoor air quality and reduces the energy consumption of a fresh air system, and in addition, the moisture absorption and release adjustment of the inner surface humidity control material conforms to the sustainable concept.

3) The regeneration can be realized by pumping air with lower outdoor relative humidity into an air layer channel by only opening the power ventilator so as to take away moisture in the internal surface humidity-adjusting material, the driving mode of the regeneration of the moisture absorption structure is that air pressure is utilized for ventilation, the regeneration process only needs to open a small-sized power ventilator, the ventilator has mature products on the market, the power is small (only tens of watts), the cost is low (hundreds of yuan), the installation is convenient, and the operation and the maintenance are convenient.

Drawings

FIG. 1 is a schematic view of the present invention in a humidity control mode;

FIG. 2 is a schematic structural view of the present invention in a dehumidification mode;

fig. 3 is a schematic structural diagram of the present invention in the ventilation mode.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1, the wall structure includes an outer wall (cement mortar 3, a heat insulation board 4, foam concrete or other lightweight porous blocks 5), an air layer channel 1, and an inner surface humidity control material 2. The bottom of the foam concrete or other light porous building blocks 5 of the outer wall body is provided with a beam 7 for supporting the concrete on the outer wall body, the bottoms of the air layer channel (1) and the inner surface humidity-regulating material (2) are provided with a matrix, an air channel (8) which penetrates through the indoor, outdoor and middle air layer channels is arranged in the matrix, the two sides of the air channel 8 are an indoor and outdoor air inlet controllable shutter air inlet device 6 and an outdoor air inlet controllable shutter air inlet device 7, and the upper part of the foam concrete or other light porous building blocks 5 is provided with a power ventilator 10 which can be used for sucking the air entering the air layer channel 1 and the air channel 8 and discharging the air out of the room.

When the humidity control mode is operated, the inner controllable shutter air inlet device 6, the outer controllable shutter air inlet device 7 and the power ventilator 10 are all closed, and the inner surface humidity control material 2 is used for adjusting the temperature and the humidity of the indoor environment.

The inner surface humidity control material 2 is a humidity control material commercially available from INAX of japan, and is embedded in a keel in the form of a plate, and a slide rail is mounted on the upper portion of the keel so as to be movable as a whole.

Example 2

As shown in fig. 2, when the indoor environment relative humidity is higher than 80%, the inner surface humidity-controlling material 2 absorbs moisture to reduce the indoor environment relative humidity, when the inner surface humidity-controlling material 2 is saturated with moisture, the dehumidification mode is operated, the outer controllable louver air intake device 7 and the power ventilator 10 are opened, the inner controllable louver air intake device 6 is closed, the air with lower outdoor relative humidity is exhausted outdoors through the power ventilator 10 after passing through the air channel 8 and the air layer channel 1, partial moisture in the inner surface humidity-controlling material 2 is taken away, the dehumidification rate can be changed by adjusting the wind speed gear of the power ventilator 10, and when the inner surface humidity-controlling material 2 is regenerated, the moisture absorption can be continued to regulate the indoor environment relative humidity.

Example 3

As shown in fig. 3, when the ventilation mode is operated, the power ventilator 10 can adjust both the natural ventilation mode and the mechanical ventilation mode, and when the inner controllable louver air inlet device 6 and the power ventilator 10 are simultaneously turned on, the indoor air enters the air layer channel 1 through the inner controllable louver air inlet device 6 and is discharged to the outside through the power ventilator 10, so as to ventilate the indoor air. Meanwhile, the angle of the inner controllable shutter air inlet device 6 can be adjusted according to needs, and then the ventilation quantity of indoor air is adjusted.

The inner surface humidity controlling material 2 was commercially available as INAX humidity controlling material, which was embedded in the form of a plate on a keel, and the upper part of the keel was provided with a slide rail so as to be movable as a whole.

Claims

1. The utility model provides an air interlayer dehumidification wall structure, includes outer wall body, middle air bed passageway (1), its characterized in that still includes the internal surface humidifying material (2) of inlayer, outer wall body, middle air bed passageway (1) and internal surface humidifying material (2) bottom are equipped with air duct (8), the top is equipped with power ventilator (10), air duct (8) both sides be interior controllable tripe air inlet unit (6) and outer controllable tripe air inlet unit (9).

2. The air interlayer dehumidifying wall structure as claimed in claim 1, wherein the inner surface humidity controlling material (2) is a humidity controlling plate having a thickness of 5-20 mm embedded in the keel.

3. An air sandwich dehumidifying wall structure as claimed in claim 2, wherein the upper part of the keel is provided with a slide rail which can be integrally moved.

4. The air interlayer dehumidifying wall structure as claimed in claim 1, wherein the outer wall is composed of cement mortar (3), an insulation board (4) and a lightweight porous block (5) which are sequentially arranged.

5. An air sandwich dehumidification wall structure as claimed in claim 4, wherein said lightweight cellular blocks (5) are provided with beams (7) at the bottom to support the concrete thereon, and the upper part of the lightweight cellular blocks (5) is provided with a power ventilator (10).

6. The air sandwich dehumidifying wall structure as claimed in claim 1, wherein the thickness of the air layer channel (1) is 20-60 mm.

7. An air sandwich dehumidifying wall structure as claimed in claim 1, wherein the power ventilator (10) is supplied with air in a downward direction, and the air in the air layer channel (1) and the air channel (8) is sucked into the lower side of the power ventilator and discharged to the outside in a lateral direction.

8. The air sandwich dehumidification wall structure as claimed in claim 1, wherein said inner controllable louver air intake means (6) and said outer controllable louver air intake means (9) are louvers installed on the inner and outer sides of the air channel (8), respectively, and the louver angle is adjustable.