katherine

2022年02月21日

　　With the development of the economy and the progress of society, people put forward higher and higher requirements for energy, and the search for new energy has become an urgent task facing human beings. There are three main types of existing energy sources, namely thermal power, hydropower and nuclear power.

　　Hydropower will flood a large amount of land, which may cause damage to the ecological environment, and once a large reservoir collapses, the consequences will be unimaginable. In addition, a country's water resources are limited, but also affected by the season. Nuclear power is clean under normal circumstances, but in the event of a nuclear leak, the consequences are equally dire. The accident at the Chernobyl nuclear power plant in the former Soviet Union has damaged 9 million people to varying degrees, and the impact has not ended.

　　These all force people to look for new energy sources. New energy must meet two conditions at the same time: one is that it is rich and will not be exhausted; the other is that it is safe, clean, and will not threaten human beings and damage the environment. At present, there are two main types of new energy sources, one is solar energy and the other is fuel cells. In addition, wind power can also be regarded as an auxiliary new energy source. Among them, the most ideal new energy is solar energy.

　　Solar power is the most ideal new energy

　　The solar energy irradiating the earth is very huge. The solar energy irradiating the earth in about 40 minutes is enough for the energy consumption of human beings all over the world for a year. It can be said that solar energy is a truly inexhaustible energy source. And solar power generation is absolutely clean and does not cause pollution. Therefore, solar power is known as an ideal energy source.

　　Although power stations with solar pane generation is affected by day and night, rain and season, it can be carried out in a decentralized manner, so it is suitable for each household to generate electricity separately, and it must be connected to the power supply network, so that each household can sell it when the power is rich. Give it to the power company, and buy it from the power company when it's not enough. The technology to achieve this is not difficult to solve, the key is to have corresponding legal protection. At present, developed countries such as the United States and Japan have formulated corresponding laws to ensure the interests of households in solar power generation and encourage households to generate solar power.

  

2022年01月20日

　　HEPA filter air purifier is mainly used to capture 0.5 μ Particle dust and various suspended solids above M. The air purifier is mainly composed of filter element and shell. The basic requirements are high filtration efficiency, low flow resistance and continuous use for a long time to reduce the cost of consumables in the later stage.

　　The filter element refers to the air filter, and the high efficiency air filter plays a vital role in the air purification industry.

　　Superfine glass fiber paper is used as filter material, offset paper, aluminum film and other materials are used as dividing plate, which is glued with wood frame aluminum alloy. It is made of special silicone rubber. It has no smell, surface will not harden, and there will be no cracks for a long time. It has stable chemical properties, corrosion resistance, can absorb the stress generated by thermal expansion and cold contraction without cracking, moderate soft hardness and good elastic recovery. Each set has been tested by sodium flame method, which has the characteristics of high filtration efficiency, low resistance and large dust capacity.

　　HEPA filter air purifier can be widely used in the air-conditioning end air supply of dust-free purification workshops in optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverage and food, PCB Printing and other industries. High efficiency and ultra-high efficiency filters are used at the end of the clean room. With their structural forms, they can be divided into: high efficiency with partition, high efficiency without partition hepa filter air purifier, high efficiency with large air volume, ultra-high efficiency filter, etc.

　　The high-efficiency structure can be divided into no partition and partition. No partition mainly uses hot-melt glue as the separator of the filter element, which is convenient for mechanized production. In addition, it has the advantages of small volume, light weight, easy installation, stable efficiency and uniform wind speed. Most of the large quantities of filters required by the clean workshop adopt the structure without diaphragm. There is a high efficiency partition plate, which is mostly made of aluminum foil and paper into a folded shape as the separator of the filter element to form an air channel. The partition board is made of high-quality kraft paper, hot rolled or offset paper. The coated paper with double-sided adhesive is mostly used as the separation plate. The main purpose is to prevent the separation plate from shrinking under the influence of cold, heat, dry and wet, so as to emit particles.

　　
  

2022年01月07日

　　what are the top portable power stations

　　Generally, batteries have a low self-discharge rate-however, when the equipment is not in use, all portable power stations have a shelf life of approximately 3-6 months when not in use. This is why it is recommended that even if you do not use portable power stations, it is best to charge them fully, preferably every two months. And store the device in a cooler place (room temperature is fine, but don't store it for a long time).

　　Most of the buttons and interfaces are integrated on the front, and there is an LED display screen in the middle. It supports four output ports such as AC, DC, USB, and car charger, which can basically meet the charging needs of any of our devices.

　　It’s important to note that if you intend to use portable power stations for emergency purposes only, it is recommended to charge them through a wall outlet, AC power outlet or car plug after 3-6 months, because when you use it, it will Slowly exhausted.

　　There is also an LED lighting lamp. Don't think that the design of this lamp is ordinary. It may save your life when you are in danger. This design is still very important outdoors.

　　There are also many ways for portable power stations to store electricity. It not only supports on-board charging, but if you have solar photovoltaic panels, it can also use solar charging.

　　ShowKoo portable power stations are very small in size, easy to carry, and there are many usage scenarios. They are only for self-driving camping, sometimes home emergency, or outdoor live broadcast, emergency rescue can be used. And you don’t have to worry about the unsafe problems that it may bring. First of all, such as short-circuit protection, over-current protection, over-charge protection, and so on. And it has a variety of different output interfaces, the number of interfaces is also very large, it can charge multiple devices at a time, and the speed is also very fast.
  

2021年10月25日

　　With the nonstop irruption of gauze, people's demand for removing gauze is getting advanced and advanced, which makes Household Demister a new consumption hotspot at the moment. The original intention of Household Demister's design was to introduce fresh air ( fresh air) and inner and out-of-door ventilation. With the domestic demand for haze junking, a sludge element was added to the design of the fresh air system to sludge PM2.5 and other particulate matter. The haze effect is much better than that of air cleansers in terms of haze junking technology or ventilation, temperature exchange, sterilization, and odor junking. The fresh air system is the essential fresh air haze junking air sanctification system.

　　Reasonable air force and exhaust design, optimized tailwind association, to ensure that fresh air is transferred into the room; it adopts hanging plate installation, which is accessible to install and doesn't damage the home decoration;

　　.No need to install an air conduit system, the design conception of short and simple installation period, suitable for colorful small independent spaces;

　　adopts fiber membrane paper full heat exchanger with high humidity permeability, good air miserliness, gash resistance, growing resistance, and mildew resistance.

　　Separate fresh air Force, no exhaust system. Designed for the better inner terrain, it provides clean fresh air with larger air volume, maintains positive pressure in the room, prevents the infiltration of out-of-door dirty air, and maintains the quality of inner air.


　　Simple installation, short cycle, and large fresh air force maintain positive inner pressure and maintain air cleanliness Household Demister

　　can automatically switch inner rotation and fresh air operation mode according to inner CO2 attention

　　Suitable for small and medium-sized independent spaces similar to the living room, small and medium-sized meeting room, business concession room, etc.
  

2021年10月22日

　　If you just want to reduce the dust and PM2.5 in the air, pure passive purification is enough; if you need to solve the toxic gas caused by decoration, then you need an active + passive air purifier that can decompose formaldehyde.

　　The principle is simple, basically, it is a blower plus a few filters to filter impurities and harmful substances in the air through the filter (deodorizing filter, formaldehyde removal filter, HEPA filter, etc.) to achieve the purpose of purification. It is generally used in vacuum cleaners and car air conditioners. More filters.

　　Features: simple structure, low manufacturing cost, strong hands-on ability, can be self-made; easy maintenance; life is determined by the local air quality, the filter needs to be replaced regularly, and the later use cost is higher; the quality is determined by the fan, generally noisy; can filter Particles above 0.12-0.3um are not effective for some bacteria and all viruses, and it is difficult to completely filter all the air in the room.

　　Using the principle of electrostatic adsorption to remove impurities in the air, the by-product ozone of electrostatic dust removal can kill some bacteria in the air, but the ozone concentration exceeding the standard will cause harm to the human body.

　　Features: can directly kill bacteria and viruses; almost no consumption of consumables, very low cost of use, and cost-effective filtration; through the use of passive filters to make up for the disadvantages of reducing static electricity generation power and control ozone in a safe range; most of them are brought, such as sterilization, decomposition of formaldehyde, deodorization, etc.; the technology is complex, the manufacturing cost is higher, and the later use cost is lower than the pure passive type, but the first investment is larger anion air purifier.
  

2021年10月09日

　　Maybe many of my friends have had this experience: every time I clean the car, it takes a lot of effort. It is not easy to clean it again and again, but I always feel that it is not cleaned. I am afraid that there is still a lot of invisible dust and garbage hidden in the corners of the car. There is a little lump in my heart. If you often send it to a professional car beauty shop to help with cleaning, not only will it be economically uneconomical, but you will also worry that they are just "scratching the itch" and the cleaning work is not done properly. In fact, is equipped with a high-quality car vacuum cleaner that can easily clean and remove the dust, and the dust cleaning effect is beyond your expectations.

　　Although the more powerful ones tend to work better, like all electrical appliances, for most car owners, vacuum cleaners are not as powerful as possible. The key is to suit your own car situation. If the air environment in your city is good, the road conditions are good, and there is not much dust, you can choose a general low-power vacuum cleaner. But if you travel frequently, it's best to have a higher-power vacuum cleaner. The general power can fully meet the requirements of use at 60W. For a car vacuum cleaner to have a good vacuuming effect, there is another parameter that depends on its vacuum degree. The greater the vacuum degree, the greater the suction power. It is best to understand the various parameters of the machine before choosing.

　　The higher the vacuum, the better the vacuuming effect. Generally, around 4000 Pa is enough for a family car. In addition, the power depends on your actual needs. If the car is used frequently and the air quality in the city is not good, you can choose a higher power if the car is easy to accumulate dust. Vacuum cleaner, so that can meet the demand.

　　The quality of the Car vacuum cleaner wireless on the market is uneven, and some of them use sponges, activated carbon filters, and other materials with unsatisfactory filtering effects. Therefore, you must fully understand the various materials of the good machine when choosing. At present, the Haipa filter is an ideal filter material.

　　
  

2021年09月26日

　　There are now incandescent lamps, halogen lamps, xenon lamps, etc. for automotive lighting. In addition to the led car headlights, other lamps, such as small lamps, indicator lights, and interior lights, mostly use incandescent lamps. But in recent years, LEDs have begun to replace some incandescent lamps.

　　The advantages of LED lights:

　　Compared with incandescent lamps, LED has significant advantages:

　　Long life span, generally up to tens of thousands to 100,000 hours. Some people think that if LEDs are used in car lighting in the future, there will be no need to replace the lamps throughout the life of the car.

　　Energy-saving, saving at least half of the electricity compared to incandescent lamps with the same brightness.

　　The light is of high quality, basically no radiation, and it is a green light source.

　　The structure is simple, the inside is a support structure, and the surrounding is sealed with transparent epoxy resin, which has good shock resistance.

　　There is no need for a hot start time, the light has a fast response speed, and it is suitable for objects with fast-moving speed.

　　is suitable for voltages between 6 and 12V, and can be used in automobiles.

　　On the whole, automotive LED is still in its infancy in the market, but due to its own good characteristics, its application prospects in automobiles are very bright.
  

2021年09月11日

　　Some methods have been introduced to deal with the use of these phrases instead of using long phrases. For example, mnemonics, acronyms, abbreviations, and acronyms are ways to reduce the use of certain longer words. This art of remembering certain words has indeed had a great impact on every contemporary education system.

　　The difference between mnemonics and acronyms is that acronyms are used to simplify the use of long phrases by using the first letter of all words in order. At the same time, a mnemonic is a fictitious name or rhyming word, which is only used to remember certain sentences academically.

　　mnemonics are fictitious names or phrases taught to children in school to remember certain common idioms. This learning method is very popular because it can help humans retrieve and remember specific valuable information in the future. For example, learn an orderly vision every month with the help of the knuckle method.

　　In contrast, an acronym is a word or name that uses the first letter of the longer part of the word to minimize the difficulty of combining longer phrases. The pronunciation of an acronym is usually expressed as a word, for example, NASA, the acronym of National Aeronautics and Space Administration.