How to calculate the area of electric lighting and smoke exhaust skylight

When using a hanging window with a window opening angle greater than 70°, its area should be calculated according to the area of the window; When the window opening angle is less than or equal to 70°, its area should be calculated according to the horizontal projection area when the window is opened at its maximum; When using casement windows with a window angle greater than 70°, its area should be calculated according to the area of the window; When the opening angle of the window is less than or equal to 70°, its area should be calculated according to the vertical projection area when the window is opened at its maximum.

The area of the rectangle is the length * width.

The trapezoidal area is upper bottom + lower bottom * height 2

The parallelogram area is the base * height.

The polygon area is as follows.

The formula for calculating the inside angle of a regular polygon is independent of the radius.

To know that the number of sides of a regular polygon is n inner angles and = 180 (n-2).

The formula for the area of an inscribed triangle with radius r is (3 times the root number 3) divided by 4 and multiplied by r square.

The formula for the area of the inscribed triangle: 3 times the root number 3 r square.

Circumscribed square: 4R square.

Inscribed square: 2r square.

If the pentagonal shape is larger, it will be divided into equilateral triangles and then counted.

The sum of internal angles – (n-2)*180

We all know that the area formula for a(x1,y1), b(x2,y2), and c(x3,y3) is.

x1 x2 x3|

s(a,b,c) = |y1 y2 y3| *= [(x1-x3)*(y2-y3) -x2-x3)*(y1-y3)]*

When the three points are counterclockwise, they are positive, and clockwise they are negative).

For the polygon a1a2a3、、、an (either clockwise or counterclockwise), let there be any point p on the plane, then there is:

s(a1,a2,a3，、、an)

abs(s(p,a1,a2) +s(p,a2,a3)+、s(p,an,a1))

p is an arbitrary point, and when (0,0) is used, it is the following:

Set the order of points (x1 y1) (x2 y2).xn yn)

then the area is equal to.

x1 y1| |x2 y2| |xn yn|

abs( |

x2 y2| |x3 y3| |x1 y1|

Thereinto. x1 y1|

x1*y2-y1*x2

x2 y2|

So the area formula is:

x1 y1| |x2 y2| |xn yn|

abs( |=

x2 y2| |x3 y3| |x1 y1|

The slotted electric lighting and smoke exhaust sunroof has a full opening angle of 90 degrees. The triangular electric lighting and smoke exhaust sunroof can be divided into two ways: upper opening and lower opening, with the maximum opening angle of 60 degrees for the upper opening type and 45 degrees for the downward opening type.

The triangular electric lighting and smoke exhaust skylight is mainly based on ventilation, supplemented by lighting, the maximum opening angle is 60 degrees, and the ventilation is good, and the round arch electric lighting and smoke exhaust skylight is mainly based on lighting, fixed and arranged on the building, and the lighting board is an arc design to expand the lighting area, and its advantages are good self-cleaning, high waterproofness, conducive to drainage in summer, and not easy to accumulate snow in winter.

Precautions for electric lighting and smoke exhaust skylight.

When choosing a smoke exhaust skylight profile, it is necessary to match it according to the roof and roofing material. For example, to maintain the life of the skylight and the steel structure workshop, the life of the roof panel selected by the building party can reach 30 years, then the life of the ventilator raw materials can not be 20 years and does not need to be 40 years, as long as the life of the roof skylight and the steel structure building is the same, it can also prevent waste and save expenses for customers.

The smoke exhaust skylight is equipped with an electric opening and closing function, and the opening and closing drive controller or sensor is installed to sense the signal to reach the opening and closing function. It is necessary to plan and place the circuit orientation in advance, including the orientation of the power control box, wiring, etc., so as to facilitate the actual operation in the future.

11CJ33 "Ventilation and Lighting Skylight" has a slotted electric lighting and smoke exhaust skylight, which is fully opened at an angle of 90 degrees. The triangular electric lighting and smoke exhaust skylight opens at an angle of 45 degrees. The opening angle of the dome electric lighting and smoke exhaust skylight is 60 degrees.

There are several types of electric lighting and smoke exhaust skylights: the following are the maximum opening angle 1, and the opening angle of the slotted electric lighting and smoke exhaust skylight is 90 degrees.

2. The triangular electric lighting and smoke exhaust skylight has an opening angle of 60 degrees and a downward opening angle of 45 degrees.

3. The opening angle of the round-arch electric lighting and smoke exhaust skylight is 60 degrees.

Electric lighting and smoke exhaust skylights can be divided into triangular mausoleum electric lighting and smoke exhaust skylights, slotted electric lighting and smoke exhaust skylights and round arch electric lighting and smoke exhaust skylights.

McVeigh electric rental Wang Pai lighting smoke exhaust skylight.

1. What are the control methods of electric lighting and smoke exhaust skylight?

Answer: The ventilation volume can be adjusted by controlling the opening and closing, which can be controlled by wind, rain, smoke, temperature, etc. At the same time, the control mode also has ordinary control, intelligent control, intelligent network control, and can realize fire linkage control.

2. What are the atlases that can be referred to in the design of electric lighting and smoke exhaust skylights?

Answer: light steel plant design electric lighting and smoke exhaust skylight, at present, domestic industrial enterprises can refer to the national building standard design atlas 09J621-2 "electric lighting and smoke exhaust skylight", the atlas introduces in detail the specifications and technical parameters of the commonly used electric lighting and smoke exhaust skylight. You can clearly understand the model and function of the electric lighting and smoke exhaust sunroof.

3. How many opening forms are there for the sunroof?What are the features?

Answer: The triangular electric lighting and smoke exhaust skylight has three opening methods: triangular upper chord, triangular lower chord and triangular sliding, which is suitable for buildings with lighting as the main and ventilation as the supplement. The sunroof is fully open, with a large amount of smoke and an opening angle of 60°.

The upper part of the window of the skylight is at an angle of 30° to the installation surface, which is conducive to drainage in summer and no snow in winter; The slotted electric lighting and smoke exhaust skylight has three opening modes: slotted upward, slotted translation, and translational folding, which is suitable for buildings with lighting as the main and ventilation as the supplement. The skylight is fully open, and its smoke exhaust volume is large, and the opening angle can be 90°; The round arch electric lighting and smoke exhaust skylight has three opening modes: side-opening, sliding and upward-opening, which is suitable for buildings that often need to be opened for ventilation and require lighting. Sliding and upward-opening round arch electric lighting and smoke exhaust skylights are suitable for buildings that are usually mainly used for daylighting and only open when necessary.

4. What is the opening form and practicability of the wind-sheltered sunroof?

Answer: The wind-sheltering type is a down-opening electric lighting and smoke exhaust skylight, which can be used in any weather that needs ventilation and smoke exhaust rooftop skylights.

Jilin Baodi Automatic Doors and Windows is a subsidiary of Jilin Auto Parts, is a manufacturer of electric lighting skylight products, is a member of the China Electric Doors and Windows Association and the national electric lighting and smoke exhaust skylight standard participating unit. It is the first to develop a prefabricated lighting and smoke exhaust skylight in China, and the product has obtained EU certification.

As a ventilation and smoke exhaust equipment with excellent performance, the electric lighting and smoke exhaust skylight has a variety of control methods, including ordinary control, intelligent control and intelligent network control.

Since it is electric, there are only two ways to control:

Wired, controlled manually by a wall-mounted controller or by a control room (elimination center).

Wireless, controlled via remote control.

The types of electric lighting and smoke exhaust skylights mainly include triangular electric lighting and smoke exhaust skylights, slotted electric lighting and smoke exhaust skylights and round arch electric lighting and smoke exhaust skylights.

Triangle electric lighting and smoke exhaust skylight.