CN213774014U - Outer curtain wall of double-layer curtain wall and curtain wall system - Google Patents

Abstract

The utility model discloses a double-deck curtain's outer curtain and curtain system belongs to double-deck curtain technical field. Aiming at the problems that the ventilation effect of a double-layer curtain wall is poor, the use effect of a natural ventilator is not optimized enough and the like in the prior art, the utility model provides an outer layer modularized assembled curtain wall and a curtain wall system of the double-layer curtain wall, wherein the outer layer curtain wall is spliced in a certain outline range by using a triangular module, the natural wind entering the curtain wall system is gathered by the angle of a triangular surface, and meanwhile, the inner layer curtain wall is provided with a power ventilator for mechanical auxiliary ventilation, so that the indoor ventilation effect is improved; the utility model discloses the curtain system is still through setting up the curtain and leading wind contained angle and the inside and outside maximum distance reinforcing indoor ventilation effect of two-layer curtain of curtain system, improves human comfort level, and the triangle-shaped module is prefabricated module, directly assembles at the scene, and construction convenience is swift, is fit for the wide application.

Description

Outer curtain wall of double-layer curtain wall and curtain wall system

Technical Field

The utility model relates to a double curtain wall technical field, more specifically say, relate to a double curtain wall's outer curtain wall and curtain system.

Background

The double-layer curtain wall is also called a hot channel curtain wall, a breathing type curtain wall, a ventilation type curtain wall or an energy-saving curtain wall. The double-layer curtain wall is composed of an inner vertical surface structure and an outer vertical surface structure, and an air buffer layer between the inside and the outside is formed. The double-layer curtain wall is a novel curtain wall with a double-layer structure, and compared with other traditional curtain wall systems, the double-layer curtain wall has the biggest characteristic that the double-layer structure has obvious heat preservation, heat insulation and sound insulation effects. The double-layer curtain wall enables the outer layer of the building to effectively adapt to natural weather changes, and can improve the heat preservation and insulation performance of the curtain wall; meanwhile, the sound insulation performance is improved, and the indoor condition is improved.

However, the double-layer curtain wall has obvious defects, the double-layer curtain wall system has poor ventilation effect in a room corresponding to the inner curtain wall part due to the shielding of the outer curtain wall, and according to natural ventilation simulation data, the wind speed in the cavity of the double-layer curtain wall is only 0.6m/s, and basically no wind enters the indoor room. The use of the double curtain wall easily deteriorates the ventilation performance of the room. And an additional ventilation system is arranged in the double-layer curtain wall system, so that the technology is complex and the manufacturing cost is high.

The Chinese patent applies for an improved double-layer glass curtain wall ventilation technology, a method and a structure, application number 200710123963.0, published 2008, 4 and 30, and discloses an improved double-layer glass curtain wall ventilation technology, a method and a structure, wherein a fan is directly installed at a proper position between the double-layer glass curtain walls, the deficiency of natural wind is made up through a mechanical auxiliary air supply method, and the problems of discontinuous and unstable air flow are solved; the air inlet is arranged on the windward side, the air outlet is arranged on the leeward side, and the air inlet and the air outlet are connected through a ventilation pipeline or a building layer ventilation channel to ensure smooth air flow; the distance between the air inlet and the air outlet is increased, the air pressure difference is realized, the chimney effect is improved, the energy-saving effect is improved, and the cost is reduced. Through the improvement, the comprehensive effect and the climate adaptability of the double-layer glass curtain wall are expected to be improved, although the ventilator is used for mechanically blowing air to increase the ventilation performance of the double-layer curtain wall, the position and the different effects of the ventilator are not specifically described, and the improvement of the ventilation performance of the curtain wall structure is not involved.

Disclosure of Invention

1. Technical problem to be solved

The double-deck curtain ventilation performance who exists is not good to among the prior art, and the result of use of ventilator optimizes the scheduling problem inadequately, the utility model provides a double-deck curtain's outer curtain and curtain system, it can realize getting into indoor wind speed in improving double-deck curtain system, improves indoor ventilation effect, and simple structure cost is not high.

2. Technical scheme

The purpose of the utility model is realized through the following technical scheme.

An outer curtain wall of a double-layer ventilation curtain wall comprises a plurality of triangular modules, wherein the triangular modules are divided into a first module, a second module and a third module, triangular surfaces in the triangular modules are all obtuse triangles, edges corresponding to obtuse angles are the longest edges of the triangles, the longest edges of the triangular surfaces in the triangular modules are all equal, and the areas of the triangular surfaces in the triangular modules are all equal; the triangular surface of the second module is an isosceles triangle, and the triangular surfaces of the first module and the third module are symmetrical according to the center line of the longest side of the triangle; the triangular modules are mutually combined and spliced into different vertical surfaces, and the longest edge of the triangular surface in each triangular module is connected with the inner curtain wall during splicing. The utility model discloses double-deck curtain's outer curtain uses the concatenation of a plurality of triangle-shaped modules to form, uses three kinds of type modules to splice outer curtain facade, improves the indoor ventilation performance of building, reduces construction cost.

The utility model discloses triangle-shaped's longest limit is the same in the triangle-shaped module, and triangle-shaped's area is also the same in the triangle-shaped module. On the premise of improving the ventilation performance, after the vertical faces of the outer curtain walls are spliced, the vertex tracks of the triangles are all in the outline range parallel to the inner curtain walls, the effect of neatness and uniformity is achieved, the appearance is more attractive, and the method is suitable for wide application. The center lines of the longest sides of the first module and the third module are symmetrical, and because the heights of the longest sides and the longest sides of the first module and the third module are equal, the triangles of the first module and the third module are the same in nature and are different only in position during splicing. The triangular modules are combined with each other and spliced into different vertical faces within a certain outline range, and the longest edge of the triangular surface in each triangular module is connected with the inner curtain wall during splicing.

Preferably, the longest side of a triangle in the triangular module is provided with a connecting piece, and the triangular module is connected with the vertical surface of the inner curtain wall through the connecting piece; when the triangular modules are spliced, the track formed by the obtuse vertex of the triangular surface of each triangular module is parallel to the plane of the inner layer curtain wall.

The utility model discloses a triangle-shaped module is the triangular prism shape, and triangular face in the triangle-shaped module is the bottom surface of triangular prism promptly, and the rest is the side, and it is different to have five entity faces with traditional triangular prism, the utility model discloses the triangle-shaped module of outer curtain is actually only two entity faces, is two sides that triangle-shaped module bottom surface triangle-shaped obtuse angle is connected respectively, and the triangle-shaped bottom surface of triangle-shaped module lower extreme is the steel barrier, and the triangle-shaped bottom surface of triangle-shaped module upper end and the side that triangle-shaped module bottom surface triangle-shaped obtuse angle corresponds are empty, and more natural winds of being convenient for get into the curtain system, improve indoor ventilation effect. The triangular module is connected with the inner curtain wall through a connecting piece on the longest side of the triangle of the bottom surface, and the contour locus of each vertex of the bottom surface is parallel to the plane of the inner curtain wall during splicing.

Preferably, the connecting piece is a square steel pipe and an adapter piece. The utility model discloses triangle-shaped module is when connecting, and the connecting piece that uses includes square steel pipe and adaptor. The outer curtain wall is connected with the square steel pipe and the inner curtain wall through the bolts, and the whole inner curtain wall and the whole outer curtain wall are fixed on the structural beam through the embedded parts as a whole module. When the triangular modules are spliced, the top contour locus of the triangular surface is parallel to the plane of the inner layer curtain wall, and the triangular modules of different types are combined and matched to form the outer layer curtain wall which is orderly staggered.

Preferably, the triangular modules further comprise a fourth module and a fifth module, the longest side of the triangle of the fourth module or the fifth module is smaller than the longest side of the first module, the second module or the third module, the longest side of the triangle of the fourth module or the fifth module is about 2/3 or 1/2 of the longest side of the first module, the second module or the third module, one of the first module, the second module or the third module is matched with the fourth module and the fifth module at the end corners, and the longest side of the triangular module is connected with the inner curtain wall facade during splicing. When the fourth module and the fifth module are spliced, the triangular surface of the triangular module is parallel to the horizontal plane and is vertical to the plane of the inner curtain wall. Because the building end angle of difference is different, three types of current triangle-shaped modules can face the condition of unable matching during the concatenation, for the outer contour line that makes outer curtain and inlayer curtain interval are at the within range line of setting value, according to the experimental result of limited times, carry out special adjustment to the triangle-shaped of triangle-shaped module, under the unchangeable condition in the height of guaranteeing the longest limit, shorten the concatenation demand of longest limit, adaptation end angle.

The utility model discloses double-deck ventilation curtain's outer curtain uses outer curtain facade of triangle-shaped module concatenation and end angle, improves the indoor ventilation performance of building, reduces construction cost, and is pleasing to the eye practical, is fit for the wide use.

The curtain wall system comprises an outer curtain wall of a double-layer ventilation curtain wall and further comprises an inner curtain wall, wherein the inner curtain wall and the outer curtain wall are arranged at intervals, the inner curtain wall is arranged on the inner side of the outer curtain wall, a ventilation device is arranged on the inner curtain wall, and the ventilation device is connected with a ventilator. The utility model discloses a ventilation unit is the window, can use austral window, sliding sash, flat-open window or the window of various forms such as internal tilt window of opening in, the utility model discloses in double-deck curtain natural draft, use ventilator machinery supplementary, improve indoor ventilation effect.

Preferably, the ventilator is fixedly or detachably connected to the ventilation device, the ventilator being arranged above, to the side of or below the ventilation device. The ventilator may be installed above, to the side of, or below the ventilation device, depending on the environment of use. Generally speaking, the mounted position of ventilator is by the leading wind direction in the building area, the transition season in area place, factor such as distance between the outer curtain wall, ventilator's air volume decides, the utility model discloses a ventilator is installed and is attached top, side and the below of frame at glass.

Preferably, the ventilator comprises a ventilation module, an exhaust module and a carbon dioxide sensor. The ventilator can use the ventilation module to start the ventilation function, and the ventilation performance is improved through a mechanical air supply mode. The air exhaust module can be used for opening an air exhaust function, indoor dirty air is exhausted into the cavity of the curtain wall, the outer curtain wall is not closed up and down, and then the indoor dirty air can be exhausted outdoors, so that the ventilation performance of the double-layer curtain wall system is improved in a passive mode, and the air exhaust module can also have the ventilation and air exhaust functions. The carbon dioxide sensor is used for monitoring indoor carbon dioxide concentration, and when the indoor carbon dioxide concentration exceeds a set value, automatic alarm is carried out, and meanwhile, the ventilator is automatically started. The ventilator is automatically closed after running for a fixed time, energy is saved, the environment is protected, and the service life is longer.

Preferably, the included angle between the double-layer curtain wall system and the main air guide is 45-90 degrees. The included angle between the double-layer curtain wall system and the main air guide is positively correlated with the air speed. And determining the included angle between the double-layer curtain wall system and the main air guide according to the simulated wind speed diagram with the height of 1.2m from the ground and the numerical value of the air exchange times. The optimal angle of the included angle between the double-layer curtain wall system and the main wind is 60-90 degrees, and the included angle is not less than 45 degrees, and if the included angle is less than 45 degrees, the improvement of the ventilation performance by the main wind direction is weaker.

Preferably, the maximum distance between the outer curtain wall and the inner curtain wall is 600mm to 1000 mm. The maximum distance between the outer curtain wall and the inner curtain wall is positively correlated with the average wind speed in the cavity between the inner curtain wall and the outer curtain wall. The utility model discloses confirm the biggest interval between outer curtain and the inlayer curtain according to the simulation wind velocity map apart from ground 1.2m height. Combine the economic nature among the practical application, the utility model discloses the maximum distance between outer curtain and the inlayer curtain has certain optimum range, and the maximum distance between outer curtain and the inlayer curtain can set up to 1000mm, 800mm or 600mm according to different environment. In the case that the optimum angle between the main wind direction and the curtain wall is 90 degrees in the middle of 9 to 11 months of the Nanjing transition season, 800mm is the optimum distance, and the wind speed increasing effect is not obvious when the wind speed exceeds 800 mm.

The curtain wall system of the utility model uses the special structure of the triangular module on the outer curtain wall, increases the wind speed of natural wind entering the curtain wall system, and sets the ventilator at the ventilation device of the inner curtain wall for mechanical assistance, thereby improving the indoor ventilation performance; the utility model discloses the curtain system is still through setting up the curtain and leading wind contained angle and the indoor ventilation effect of maximum separation enhancement of the inside and outside two-layer curtain of curtain system, improves human comfort level, and construction cost is low, is fit for the wide application.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the outer curtain wall adopts a special structure of a triangular module, the natural wind speed entering a curtain wall system is increased, and meanwhile, a ventilator is arranged at a ventilation device of the inner curtain wall for mechanical assistance, so that the indoor ventilation frequency is improved, and the indoor ventilation performance is improved; the double-layer curtain walls are matched with each other, so that the indoor ventilation effect is improved to the maximum extent;

(2) the triangular modules spliced by the outer curtain wall are all obtuse triangles, are similar in shape, and have equal heights on the longest side, so that on the premise of improving the ventilation performance, the spliced vertical surfaces of the outer curtain wall are ensured to have a relatively neat and uniform effect, the construction cost is reduced, and the outer curtain wall is more attractive; the triangular modules are prefabricated modules which are produced in a factory and directly transported to a site for assembly, so that the construction is convenient and fast;

(3) the included angle between the double-layer curtain wall system and the main air guide and the maximum distance between the outer-layer curtain wall and the inner-layer curtain wall are optimized, the design scheme with the optimal indoor ventilation effect is used in different construction environments of the building, the chimney effect of the curtain wall system is enhanced, and the ventilation performance is improved;

(4) the ventilator still opens the function of airing exhaust through the module of airing exhaust including function and the intelligent response function of airing exhaust, with the wind discharge curtain system in the double curtain wall cavity to passive mode improves the ventilation performance of double curtain wall system, ventilator automatic alarm and start when indoor carbon dioxide concentration surpasss the setting value, are fit for using in the wisdom building system.

Drawings

FIG. 1 is a vertical splicing effect diagram of the outer curtain wall of the utility model;

FIG. 2 is a schematic view of a triangular module of the outer curtain wall of the present invention;

FIG. 3 is a schematic diagram of the triangular module splicing of the outer curtain wall of the utility model;

FIG. 4 is a schematic view of the vertical surface of the outer curtain wall of the present invention;

FIG. 5 is a schematic view of the triangular module assembly structure at the end corner of the outer curtain wall of the present invention;

FIG. 6 is a schematic view of the mounting position of the ventilator of the inner curtain wall according to the present invention;

fig. 7 is the strong installation schematic diagram of the ventilation of the inner curtain wall of the utility model.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples.

Examples

In the prior art, a double-layer curtain wall is a novel curtain wall with a double-layer structure and is divided into an outer circulation system and an inner circulation system, wherein the inner circulation curtain wall means that an outer layer curtain wall is closed, and an air inlet and an air outlet are formed in the inner layer curtain wall and communicated with a room; the outer circulation curtain wall means that the inner layer curtain wall is closed, and the outer layer curtain wall is communicated with the outdoor air inlet and the outdoor air outlet. The wind speed in the cavity between the traditional internal circulation double-layer curtain walls is only 0.6m/s, and basically no wind enters an indoor room. In practical application, the ventilation effect of a room using a traditional double-layer curtain wall is found to be poor, Vent software is used for simulation according to natural wind simulation data, simulation environment parameters are transition seasons, wind directions SSE and wind speeds 3.0m/s in Nanjing areas, the simulation working conditions are basically consistent, the wind speeds are redefined according to the ventilation volume of the ventilator and the size of a window during simulation of the ventilator, and the initial wind speed is set to be 1.39 m/s.

This embodiment double-deck ventilation curtain system is for improving room ventilation effect, be different from prior art's rectangle module on double-deck curtain's outer curtain wall respectively, use triangle-shaped facade module, utilize the angle of triangle-shaped face in the triangle-shaped module, increase the natural wind speed that gets into the curtain system, simultaneously through the contained angle that sets up curtain and leading wind, optimize double-deck curtain's inside and outside interval, set up the ventilator again at inner curtain and carry out mechanical assistance, make double-deck curtain system get into indoor wind speed and improve, thereby improve the ventilation effect in the room, better improvement indoor ventilation performance.

Firstly, the facade module of the outer layer curtain wall is described, the change of the building plane size of the traditional curtain wall is mainly used for building facade image, and different design schemes are mainly used for beauty. The utility model discloses an outer curtain facade uses the triangle-shaped module, utilizes the angle of triangle-shaped face in the triangle-shaped module, increases the natural wind speed that gets into the curtain system, improves double-deck curtain's ventilation performance, still improves facade design effect.

As shown in fig. 2, the outer curtain wall includes a plurality of triangular modules, triangular surfaces in the triangular modules are all obtuse triangles, and the side corresponding to the obtuse angle is the longest side of the triangle; the triangular modules are mutually combined and spliced into different vertical surfaces, the longest edge of each triangular module is connected with the vertical surface of the inner curtain wall during splicing, a connecting piece is arranged on the longest edge of each triangular module in the embodiment, and each triangular module is connected with the vertical surface of the outer curtain wall through the connecting piece. When the triangular modules are connected, the used connecting pieces comprise square steel pipes and adapter pieces. The outer curtain wall is connected with the square steel pipe and the inner curtain wall through the bolts, and the whole inner curtain wall and the whole outer curtain wall are fixed on the structural beam through the embedded parts as a whole module.

When the triangular modules are spliced, the profile locus of the obtuse vertex of the triangular surface is parallel to the plane of the inner curtain wall, the obtuse vertices of the triangular surface of the triangular modules are A, B, C vertices shown in fig. 3, namely, the locus contour formed by A, B, C vertices in the outer curtain wall is parallel to the inner curtain wall. Different types of triangular modules can be matched at will to form an orderly staggered outer curtain wall.

The triangular modules comprise three types of modules which are divided into a first module, a second module and a third module, three types of vertical face triangular modules shown in figures 2(a), 2(b) and 2(c) are arranged according to the comparison optimization of the size proportion in the curtain wall, the longest sides of the triangles of the three types of triangular modules are all equal, the heights of the longest sides of the triangles of the three types of modules are all equal, namely the areas of the triangles in the triangular modules are all equal. The module in fig. 2(b) is an isosceles triangle, and the module in fig. 2(c) is symmetrical to the module in fig. 2(a), that is, the first module and the third module are symmetrical about the center line of the longest side. In this embodiment, the angle of the triangle of the module in fig. 2(b) is 117 °, the angles of the triangles in fig. 2(a) and 2(c) are both 123 °, the maximum distance between the triangle modules is 800mm, the maximum side length is 2950mm, and the maximum distance is the height of the longest side of the triangle.

As shown in fig. 4, a is a schematic diagram of a splicing structure of facade modules of an outer curtain wall, wherein a represents a first module shown in fig. 2(a), B represents a second module shown in fig. 2(B), and a' represents a third module shown in fig. 2(c), when the three types of triangular modules are spliced, triangular surfaces of the triangular modules are parallel to a horizontal plane, an obtuse angle corresponding to the longest side of a triangle in the triangular modules is perpendicular to the facade, and the obtuse angle faces to the outer side of a double-layer curtain wall system.

Three basic vertical face modules are flexibly arranged on the vertical face of the outer curtain wall to form a random and complex vertical face effect which looks disordered as shown in figure 1, the spliced outer curtain wall is not a plane structure in the prior art and is composed of one triangular module, and due to the angle design of the triangular modules, the wind speed entering a curtain wall system is improved, and the indoor ventilation effect is improved. The longest edge and the height on the longest edge of the three triangular modules are the same, so that the spliced vertical faces of the outer curtain wall are ensured to have a relatively uniform effect on the premise of improving the ventilation performance, and the spliced vertical faces are more attractive.

In order to keep the outline of the outer curtain wall within the range of 800mm of the distance parallel to the inner curtain wall, two kinds of adapter modules with the longest side length being two thirds and one half of the longest side length of the first module are required to be added on the basis of the three triangular modules, such as a fourth module and a fifth module shown in fig. 2(d) and 2(e), and the longest side of the triangular module is connected with the vertical face of the inner curtain wall during splicing. When the fourth module and the fifth module are spliced, the triangular surface of the triangular module is parallel to the horizontal plane, and the contour track of the obtuse angle vertex of the triangular module is parallel to the plane of the inner layer curtain wall. Because different building end angles are different, the three types of existing triangular modules face the condition of incapability of matching during splicing, as shown in fig. 3, in order to enable the distance between the outer contour line of the outer curtain wall and the inner curtain wall to be within the range line of a set value, according to the limited experimental result, the triangle of the triangular module is specially adjusted, the longest edge is shortened under the condition that the height of the longest edge is not changed, the splicing requirement of the end angles is adapted, and the outer contour is kept within the contour range of 800 mm.

In the process of combination, because different building end angles are different, the existing three types of triangular modules face the condition of incapability of matching during splicing, in order to enable the distance between the outer contour line of the outer curtain wall and the inner curtain wall to be within the range line of a set value, the end angle of the outer curtain wall needs to be specially adjusted for the vertical face module, the length of the longest edge of the outer curtain wall is reduced under the condition of ensuring that the height of the longest edge is unchanged, eight different end angle modules are derived at the end angles according to different combination modes, as shown in fig. 5, various end angle modules can be derived according to different building shapes, and eight of the end angle modules are preferred in the embodiment.

The inner curtain wall will be described in detail below. In order to better improve the indoor ventilation effect, as shown in fig. 7, a ventilator is mounted on the ventilation device, and the ventilator is mounted on the auxiliary frame of the sliding window, and the ventilator is a window type ventilator.

The ventilator is connected to the ventilation device as shown in fig. 6, and the ventilator is arranged above the sliding window as shown in fig. 6(a), arranged at the side of the sliding window as shown in fig. 6(b), or arranged below the sliding window as shown in fig. 6 (c).

Working conditions are simulated by taking Nanjing area from 9 months to 11 months as an example, and the office use area constructed in the technical scheme of the simulated working conditions is not less than 10m²And on the basis of the CFD technology, the Siville building ventilation Vent software is adopted for analysis, the outdoor wind direction, the outdoor average wind speed, the floor height, the room area and the ventilation volume of the ventilator in the transition season are all set as quantitative analysis factors, the ventilators in different installation positions are subjected to comparison experiments, the best ventilation effect in the ventilator room below the sliding window can be obtained, and the wind in the whole office is distributed uniformlyAbout 90% of the room area can be ventilated, pollutants can be effectively taken away, the indoor air quality is guaranteed, meanwhile, air enters the room from the lower side, the air flows upwards from the feet of office workers, and the blowing feeling of a human body can be reduced; the ventilator arranged at the side of the sliding window has inferior ventilation effect, about 73 percent of the room area can be ventilated, the position with the minimum wind speed is positioned at the end corner of the room, but the height of the ventilator at the side is close to the height of the office staff, so that the blowing feeling of the lateral vertical wind directly blowing to the human body is easy to form; the ventilator placed above the sliding window has the worst ventilation effect, and about 58% of the room area can be ventilated.

From the indoor airflow distribution result, the ventilator is arranged on the lower side of the sliding window, a rectangular vortex close to the middle upper part of the inner curtain wall is generated indoors, the area of the vortex accounts for about 19.56% of the area of a room, the size of the vortex in the depth direction of the room accounts for about 29% of the total size in the depth direction, and the influence on an office area is small from the position of the vortex and the size in the depth direction of the room; the ventilator is arranged on the side of the sliding window, a square vortex close to the middle part of the inner curtain wall is generated indoors, the area of the vortex accounts for 23.58% of the area of a room, the size of the vortex in the depth direction of the room accounts for 41% of the total size in the depth direction, and the influence on an office area is larger from the position of the vortex and the size in the depth direction of the room; the ventilator is arranged above the sliding window, two square vortexes are generated indoors and distributed at the upper part and the middle lower part close to the inner layer curtain wall side, the area of each vortex accounts for 44.27% of the area of a room, the size of each vortex in the depth direction of the room accounts for 45% of the total size of the vortex in the depth direction, and the influence on an office area is larger from the position of each vortex and the size of the vortex in the depth direction of the room, and is larger from the lower part and the side part.

Generally, the installation position of the ventilator is determined by factors such as the main wind direction of the region where the building is located and the transition season where the region is located, the distance between the inner curtain wall and the outer curtain wall, and the ventilation volume of the ventilator. The position of the ventilator is determined by the distance between the main wind direction and the double-layer curtain wall in the transition season of the area. The direction of building is decided to leading wind direction, and this embodiment makes leading wind direction between 60 to 90, and the inlayer curtain interval is 800mm, and the wind that gets into double-deck curtain this moment is a wind speed scope of most economic, then combines the ventilator to carry out indoor ventilation and optimizes.

The ventilator of the embodiment has an air exhaust function and an intelligent induction function besides the traditional ventilation function. The ventilator can use the ventilation module to open the ventilation function, and the ventilation performance is improved through a mechanical air supply mode. The air exhaust module can be used for starting the air exhaust function, air in a room is exhausted out of the curtain wall system, the ventilation performance of the double-layer curtain wall system is improved in a passive mode, and the double-layer curtain wall system can also have the ventilation and air exhaust functions when needed. The ventilator of the embodiment is internally provided with a carbon dioxide sensor for monitoring the indoor carbon dioxide concentration, and when the indoor carbon dioxide concentration exceeds a set value, an automatic alarm is given out and the ventilator is automatically started; simultaneously this ventilator sets up self-closing after the operation fixed time, and energy-concerving and environment-protective, intelligent control is suitable for and uses in the wisdom building.

The included angle between the curtain wall and the main wind is determined by the height wind speed vector diagram 1.2m away from the ground and the cloud chart, the optimal included angle between the double-layer curtain wall system and the main wind is 60-90 degrees, the wind speed is greatly improved, and the indoor ventilation effect is better. The main wind direction is not lower than 45 degrees, and if the included angle is lower than 45 degrees, the improvement of the ventilation performance is weaker.

Determining the maximum distance between the inner curtain wall and the outer curtain wall through a height wind speed vector diagram 1.2m away from the ground and a cloud chart, wherein when the maximum distance between the outer curtain wall and the inner curtain wall is 1000mm and the average distance is 500mm, the average wind speed in the cavity is 0.56 m/s; when the maximum distance between the outer curtain walls is 800mm and the average distance is 400mm, the average wind speed in the cavity is 0.45 m/s; when the maximum distance between the outer curtain walls is 600mm and the average distance is 300mm, the average wind speed in the cavity is 0.25 m/s.

According to the wind speed statistical result, when the distance exceeds 800mm, the wind speed increase proportion is 19.64%, the effect change is not obvious, and when the distance is less than 800mm, the wind speed decrease proportion is 44.44%, the change is large. Because the cavity interval increase when interior outer curtain, curtain lower part barrier and curtain structural connection spare quantity also can corresponding increase, and the cost date increases 10%, and the cost increases, considers improvement effect and the construction cost of wind speed comprehensively, uses 800 mm's interval for the comparatively economic reasonable interval of transition season ventilation, and the inner and outer curtain interval exceeds 800mm and promotes the effect unobvious to the wind speed.

When this embodiment curtain system applied, the triangle-shaped module through outer curtain improves the natural wind speed and the amount of wind that gets into the curtain system, sets up the curtain and leading wind contained angle and the inside and outside maximum distance reinforcing indoor ventilation effect of two-layer curtain of curtain system, and ventilator machinery through the inlayer curtain assists the air supply or airs exhaust, takes passive or active mode to further improve indoor ventilation effect according to the environment difference, improves human comfort level, is fit for wide application.

The present invention and its embodiments have been described above schematically, without limitation, and may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiment shown in the drawings is only one embodiment of the invention, the actual structure is not limited thereto, and any reference signs in the claims shall not limit the claims concerned. Therefore, if a person skilled in the art receives the teachings of the present invention, without inventive design, a similar structure and an embodiment to the above technical solution should be covered by the protection scope of the present patent. Furthermore, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Several of the elements recited in the product claims may also be implemented by one element in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims (9)

1. The outer curtain wall of the double-layer curtain wall is characterized by comprising a plurality of triangular modules, wherein the triangular modules are divided into a first module, a second module and a third module, triangular surfaces in the triangular modules are obtuse triangles, edges corresponding to obtuse angles are the longest edges of the triangles, the longest edges of the triangular surfaces in the triangular modules are all equal, and the areas of the triangular surfaces in the triangular modules are all equal; the triangular surface of the second module is an isosceles triangle, and the triangular surfaces of the first module and the third module are symmetrical according to the center line of the longest side of the triangle; the triangular modules are mutually combined and spliced into different vertical surfaces, and the longest edge of the triangular surface in each triangular module is connected with the inner curtain wall during splicing.

2. The outer curtain wall of the double-layer curtain wall as claimed in claim 1, wherein the longest side of the triangle in the triangular modules is provided with a connecting piece, and the triangular modules are connected with the vertical surface of the inner curtain wall through the connecting pieces; when the triangular modules are spliced, the track formed by the obtuse vertex of the triangular surface of each triangular module is parallel to the plane of the inner layer curtain wall.

3. The outer curtain wall of the double-layer curtain wall as claimed in claim 2, wherein the connecting pieces are square steel pipes and adapter pieces.

4. The outer curtain wall of the double-layer curtain wall as claimed in claim 1 or 2, wherein the triangular modules further comprise a fourth module and a fifth module, the longest side of the triangle of the fourth module or the fifth module is smaller than the longest side of the triangle of the first module, the second module or the third module, one of the first module, the second module or the third module is matched with the fourth module and the fifth module at the end corner, and the longest side of the triangular module is connected with the inner curtain wall facade during splicing.

5. A curtain wall system, characterized in that, comprises the outer curtain wall of the double-layer curtain wall as claimed in any one of claims 1 to 4, and further comprises an inner curtain wall, wherein the inner curtain wall and the outer curtain wall are arranged at intervals, the inner curtain wall is arranged at the inner side of the outer curtain wall, a ventilation device is arranged on the inner curtain wall, and the ventilation device is connected with a ventilator.

6. A curtain wall system according to claim 5, wherein the ventilator is fixedly or detachably connected to the ventilation means, the ventilator being arranged above, to the side of or below the ventilation means.

7. The curtain wall system according to claim 6, wherein the ventilator comprises a ventilation module, an air exhaust module and a carbon dioxide sensor.

8. The curtain wall system according to claim 5, wherein the included angle between the double curtain wall system and the main air duct is 45 ° to 90 °.

9. The curtain wall system according to claim 5, wherein the maximum distance between the outer curtain wall and the inner curtain wall is 600mm to 1000 mm.

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