The purpose of installing the range hood is to reduce indoor pollution. Therefore, when selecting a model, it is first necessary to select a high exhaust efficiency. In general, the greater the power of the hood, the greater the amount of exhaust air, and the more soot that is discharged. There are many brands and styles of range hoods. What should you pay attention to when selecting range hoods?
First, choose a high smoke rate. We know that kitchen fumes can cause damage to the human respiratory system. According to statistics, deaths due to respiratory diseases account for the first place in all kinds of deaths in China. Soot-type fluorosis and arsenic poisoning have become endemic diseases in some areas. The purpose of installing the range hood is to remove the fumes in cooking and reduce indoor pollution. Therefore, when selecting a model, it is first necessary to select a high exhaust efficiency.
Second, choose a negative pressure. Because the greater the negative pressure of the range hood, the stronger the smoking ability. As you mentioned, the range hoods currently on the market are divided into flat type, semi-deep type, deep type and cabinet type. They have different "negative pressure zones" due to different structures. Most deep-type range hoods The negative pressure area of ​​the machine is about 0.14 cubic meters, and the exhaust efficiency is about 60%. The negative pressure area of ​​the cabinet-type range hood is about 0.32 cubic meters, and the exhaust efficiency is more than 95%. However, since the cabinet hood adopts a three-sided closed form, it is luxurious in appearance without hanging.
It is necessary to select various technical indicators in line with national standards. At present, there are more than 400 manufacturers of range hoods in the country, some of which are small workshop-style production plants composed of more than a dozen people. Some products have not been certified by the national authorities. Therefore, consumers must pay attention to selecting products with guaranteed product quality when choosing.
Range hoods are mainly divided into three types according to their appearance: one is a Chinese hood, the other is a top suction hood, and the third is a side suction type. Here's a quick comparison of their strengths and weaknesses:
1. Chinese-style hood: subdivided into shallow suction and deep suction. The shallow suction type is an ordinary exhaust fan, which directly discharges the soot to the outside, and now uses fewer people. The biggest problem of the deep suction type hood is that it takes up space, is noisy, and is easy to meet. It is not convenient to clean.
2, top suction range hood: Chinese can be divided into thin and simple. In the simple type, it is divided into deep and sub-deep types. Use multi-layer oil mesh filtration to increase motor power for best results. The characteristic is: the appearance is beautiful, but the price is more expensive.
3, side suction range hood: the advantage is not easy to meet, stylish, young people like, the disadvantage is that the suction is small, easy to accumulate oil.
The side suction type hood has a large oil absorption area and is close to the oil smoke. The aerodynamic and fluid dynamic design is adopted. The principle of separating the soot and then discharging the clean air by using the soot separation board firstly discharges the clean air without polluting the environment, and does not drip the oil. Do not meet the head, the effect of fume extraction is good, the rate of fume extraction is above 99% (in fact, many can not reach), the motor does not stick to oil, long service life, easy to clean, especially suitable for the fire in the Chinese kitchen.
The side suction type is the air inlet of the wind cabinet and the wind wheel on the vertical plane, and the air outlet is on the horizontal plane. It uses the inner cavity to form a huge smoke buffer, which generates a certain wind pressure, and the pressure of exhausting the smoke is large. The exhaust is thorough and the oil control is relatively easy.
Straight suction type (top suction type), the air inlet and outlet of the air cabinet are on the horizontal surface. The soot rising principle is used to directly shrink the flue gas to the air inlet and filter it out of the machine. However, the oil circuit control is slightly worse, and other equipment is needed. Technical assistance guides oil backflow.
Jc001.load('news_ads'); jc001.newsAds.prints("5")
Bws Moving Head,Led Lights Moving,Led Moving Lights,Led Moving Head Light
EV LIGHT Guangzhou Co., Ltd , https://www.evlightprofessional.com