The maintenance of diesel powered fire pump

The biggest difference between diesel powered fire pump and electric water pump is that they have their independent power supply system - storage battery, so it can start and operate normally without the support of electric supply. Diesel fire pump is usually used as standby facility. It will start automatically only when the fire signals appear, and a failure occurs at electric water pumps or the power goes off.

The maintenance of diesel fire pumps is the most simple and the most economical, so extending service life and reducing use cost become very important. The daily maintenance can keep the following steps:
1. Check the fuel quantity of fuel tank, and fill up it if needed.
2. Check the oil level of the oil sump, and it belows the scale line, refuel to the specified amount, but it should not exceed the upper limit.
3. Check the oil level of the fuel injection pump speed controller, and you should refuel if it doesn't reach the specified degree line.
4. Check if there is enough lubricating grease in the oil filling nozzle of the water pumps. Take the oiling nozzle off the diesel circulating water pump and observe if there is enougn lubricating grease inside. If no, infuse it with abundant lubricating grease.
5. Check if there is enough water inside the water tank, and replenish the water if needed. It is suggested to use clean water such as tap water or clean river water. If use the ground water directly, it will generate scale incrustation inside the water tank, which will influence the cooling effect and cause failure. So ground water can be used only if being softened.
Although diesel fire pump is highly automated, some human factors may make it fail to work. So in order to ensure the reliability of the entire control system, the organized daily maintenance is necessary.
This article comes from: http://www.pacificpumpgroup.com/news/37876.html

Adjust the market of China distribution transformer market

Distribution transformer is the key electrical equipment of power transmission. Because of the policy of energy saving and consumption reducing, many high energy-consuming distribution transformers do not conform to the industry development trend any longer. They will be replaced by transformers of energy-saving, materials-saving,environmental protection and low noise. Energy-saving transformers will must be the wave of the future.

In recent years, as our electric power construction develops fast, the demand for distribution transformers is increasing repidly, which leads to that many transformer manufacturers increase their production capacity in high speed. It is reported that there are approximately 1,500 distribution transformers manufacturers in China, and the annual capacity is 3 billion KVA, while in the past 3 years, the annual demand of distribution transformers is around 1.5 billin KVA.
Excess production capacity leads to fierce competition, many enterprises get into a vicious cycle of low price and low quality. In the fierce competitive environment, the economic benefit of domestic transformers enterprises has greatly declined, and many of them are on the brink of insolvency, and some of them begin to devote themselves to develop energy-saving, environmental protection and intelligent products.
Actually, no matter it is in Chinese market or in global market, and no matter it is developed country or developing country, all of them have to focus on energy-saving transformers beause of the increasingly grim situation of energy efficiency target. Energy-saving distribution transformers could usher in large-scale application stage.

This article comes from: http://www.delixi-sh.com/news/view/37838

The market demand for high voltage switchgear is increasing

To some extent, the market demand for high voltage switchgears depends on the development of power market. In recent years, the global market demand for power distribution equipments has a ascend trend. Along with transformation project of rural power and ultra high voltage direct-voltage transmission project, the industry of power transmission and distribution equipments develops repidly.

In China, the annual growth rate of electrical switchgear ranges from 7% to 11%, and this is a huge quantity. By most estimates, if we replace the traditional switchgear with intelligent electrical switchgear, and we assume that the annual replacement ranges from 3% to 5%, so the aggregate demand will reach 30,000 to 50,000 a year, but exclude the quantity demanded by new projects. Although we have no accurate statistics of the actual demand for low voltage switchgears, the rate of low voltage switchgear and high voltage switchgear is approximately 1:12 to 1:15, so we can guess that the annual demand for intelligent low voltage switchgears may ranges from 500,000 to 700,000.
Intelligent switchgears should feature high performance, high reliability, and have some ability of self-diagnosis and automatic control, as well as network communication capability. The intelligent switch cabinet can be devided into distribution type, motor control type and other control functional type. The distribution type uses intelligent circuit breaker as core component, and achieve remote control, telemetry, remote communication and remote setting to power distribution circuit by host computer. While the motor control type uses transducer and intelligent motor controller as core components to achieve the optimal control of motor starting, running and stop.
The vigorous development of new technology and constantly infiltration in the field of high voltage switch equipment, it forms the current situation of combining strong current and weak current, the traditional technology and advanced technology. At present, some manufacturers have introduced GIS intelligent control system in order to adapt to higher voltage degree. Some experts think that the next 10 to 20 years will be the important strategic opportunity period for economic society development and scientific and technological development, and the power transmission and transformation industry will meet golden deveopment opportunity. For a long time in the future, GIS equipments will become more and more in demand.
This article comes from: http://www.ybpower.com/news/37814.html

The development trend of LED commercial lighting fixtures

Commercial lighting is the main application of LED lights at present, followed by home lighting and industrial lighting, but there is controversial idea in the market that some people think that home application is the biggest lighting market. It is hard to say which view is right. Let's talk about the differences of commercial lighting applied in different areas.

Commercial lighting can be devided into industrial lighting, solar street lighting, landscape lights and special area lighting fixtures. Actually, commercial lighting fixtures were developed on the basis of filament lamps, but commercial lighting fixtures are dainty about optics. The general commercial lighting can be devided into spot lighting and flood lighting. Both halogen lamps and metal halide lamps are the best examples of commercial lighting. So in which location we should use flood lighting, and in which location we should use spot lighting? Security flood lights are generally used as outdoor lighting in scenic spots and commercial buildings, such as street lights on both sides of the street. While spot lights are mostly used as industrial lighting, such as auto lighting fixtures. Spot lighting is characterized by long irradiation distance, while flood lighting features large irradiation area, varied character dominated different application.
As the development of production technology, people have increasingly high demand for the artistic quality and decorative effect of commercial lighting fixtures, and it is why the decorative induction lamps can hold such as large market share, especially the commercial lights applied in the mall.

This article comes from: http://www.ynllighting.com/news/37762.html

LED pendant lights of different materials

In the design of LED pendant light, we should not only focus on the practical aspect, but also keep an eye on its decorating effect. Especially in a fashionable family restaurant, a personalized pendant light is perfect to match the hang ceiling, and make different styles for the restaurants.
1. Chip weaved lampshade - American country style

This lampshade is weaved using thin wood chip. In appearance, it looks like a food steamer. It can reflect the natural beauty if matching with solid wood furniture. This lampshade weaved of thin wood chip and iron rack is full of natural wooden frame. The iron rack not only has the reliable fixation effect, but also makes the wood chip present a stereo effect, which makes the pendant light appear to be more beautiful and aesthetics.
2. Crystal ball lampshade - elegant style

Crystal ball lampshade features smooth and simple lines, and it is very suitable for elegant restaurant style. To match it with round dining table, it makes the entirespace full of harmonious atmosphere. This beautiful lampshade is made of blowing plastic, so it features high light transmission, which makes the restaurant be more brighter and warmer. It is the perfect combination of simple, elegant and fashionable style.
3. Linen lampshade - Jane European design style

The Nordic contracted style advocates simple and natural materials. It fully reflects this characteristic to adopt the natural linen fabric as lampshade. To be matched with dogwood dining table, it brings a kind of cozy feeling for the white restaurant. Linen fabric is natural beige, which gives people warm and elegant feeling. You can also choose cotton fabric of fresh blue, and it is also very suitable for Jane European style.
4. Metallic Paint lampshade - the modern concise style

The modern concise style is the most common style in the design of restaurant, because it is very practical and it can mix and match drawing rooms and kitchens of different styles. So pendant lights for the restaurants of modern concise styles need to be both beautiful and easy matching. This kind of brilliant metallic paint lampshade of different styles and colors can mix and match freely. It is a perfect selection for drawing rooms of modern concise style. Small size and medium size need 60W LED bulb, and big size needs 100W bulb, and ultra big size need 150W bulb.
5. Wampum lampshade - European classical style

European classical style is generally matched with elegant, vintage solid wood or leather furniture, to demonstrate noble quality. The bright pearl effictiveness of the lampshade give people a luxurious sense. It can't be more suitable for decorating drawing rooms of European classical style.

Thanks for the help of www.yourlite.com

How to clean your auto radiators?

In summer, the automotive air conditioners are more frequently used than other seasons. Many owners complain that the refrigeration effect is not good, and some speculate that it is because of the lack of Freon. Actually, there are many reasons why your air conditioners cannot refrigerate. A simple way is to clean the entire cooling system including the auto radiators. If the auto radiators are too dirty, it will reduce the refrigerate effect of air conditioner, and some old cars may have the problem of high temperature water. So it is suggested to clean the auto radiators yourself.
How to clean auto radiators?
Auto radiator is installed in the outer field inside the vehicle's grille, and some are exposed directly. So those dirty stuff entering into the grille is very easy to be attached to the auto radiators. Especially in Spring and Autumn, the debris such as catkin and leaf in the air are easy to enter the grille, and additionally some mud, dust, floats in the air would crash in to the radiator too. If those dirty stuff can't be cleaned up timely, they will plug up the ventilation holes, and then it will reduce the refrigerate effect. Following are the specific process explaining how to clean the radiator.
1. Strip the grille
Cleaning auto radiators is not difficult, and the operation is very easy. The first step is to seperate the front grill. Because of the different design on each model, some vehicles can only show a small part of the radiator after tearing down grille, so it costs more time to clean such kind of radiators relatively.
2. Clean the radiator with air pump
If there are big stuffs such as branches and leaves stuck inside the radiator, just clear it with your hand firstly, and then you can clean the radiatro with air pump.
Try to celan it from the inside, and in this way those dust and debris can be blown away directly. Of course every car's internal structure will be different, some cars don't have enough space for the pump, and you can only clean the aluminum radiator from the outgoing instead. Sometimes the radiators may look not so dirty on the surface, but inside the radiator has piled up a lot of dirt. Use the air pump to exhaust them out, and this process can be repeated multiple times.
3. Water scrubbing (it is not suggested)
Generally water scrubbing is not suggested, on the one hand, cleaning the radiator with air pump is enough, and on the other hand, the squirt gun will cause great water pressure, which may broke the cooling fin easily.
Radiator cleaning is very simple, but many owners tend to ignore or don't know this item also need to be cleaned. I hope owners can get into the habit of checking and cleaning the radiators regularly after reading this article.

How to select high quality acrylic sheets

For the acrylic sheets market, acrylic products are accomplished relatively. It has been widely applied in instrument parts, automobile lamps, optical glasses, transparent pipes and so on, for its characteristics of light weight, transparent, weather-proof and easy forming process. In recent years, with the continuous development of machinery equipment and process technology, both the quality and quantity of acrylic products increased a lot, and its applications have become much more extensive, especially that it has been the particular light guide materials of LCD. Here let's analyze how to select high quality acrylic sheets together.
1. High quality acrylic sheets are nonflammable material, and some businesses use many other materials to masquerade as acrylic products, while most of them are flammable.
2. Generally speaking, high quality acrylic sheets have soft rubber edge leaving the factory. Some acrylic sheets are added with some recycled reformed edge in the production process, which is casually referred to as synthesizing board.
3. We can also judge the quality by observing its thickness. The thickness of acrylic sheets vary from 1mm to 8mm, and the length has various specifications including 1250*2450, 1500*2000, 1000*1500, 1600*2100, 2000*3000 and 2100*3100 etc. Different thickness has different application, and customized size is also avaliable. For outdoor applications, we should choose acrylic products with higher thickness, while for some simple acrylic products such as acrylic accessories, lower thickness or medium thickness is enough.
4. Good acrylic sheet passes very pure white light, instead of yellow or blue light, which depends on the light transmittance of the material.
5. Acrylic sheets of poor quality are very weak, and it fades fast from wind and sun exposure. So good acrylic sheets possess fair surface polish and transparency.
This article comes from: http://www.luchuan-acrylic.com/news/36824.html

The development status and market prospects of the electric wheelchair

Aging population is often mentioned as a problem in recent years, and in some developing countries, its aging population is already as much as 10% of the total, the aging population of some northern European and western European countries is as high as 20% approximately. There is a high percentage of the elderly people lose or lower the ability to walk caused by apoplexia or diseases in the legs and so on. It is predicted by related people of The wheelchair industry association, that in the future 10 years, electronic wheelchair, electric mobility scooters and such products will usher in an era of rapid growth.
As society ages, many old people and patients have to use wheelchairs because of trouble with walking. Wheelchairs can be devided into two types: manual wheelchair and electric wheelchair. Manual wheelchairs have the advantages of solid structure, easy maintenance and low cost, while electric wheelchairs are more convenient and strength-saving, but it is much more expensive.
The market of wheelchairs continues to grow in the past 50 years. It is reported by the famous consulting company Frost & Sullivan, that the annual global sales of wheelchairs have increased from 1.6 million to 5 million during the period from 2000 to 2010, and the annual increase is about 7%. In 2011, more than 5 million wheelchairs were sold worldwide, which generated 4.6 hundred million to 4.8 hundred million in sales volume. According to statistics by the American wheelchair industry association, the ratio of manual wheelchair sales volume and electric power wheelchair sales volume in the international market is 49:51.
With the rapidly development of Chinese aged society, the demand for wheelchairs continues to grow. And in the 30 years of reform and opening-up, China's economy has maintained the rapid and steady developing state, home wheelchairs tend to transition from manual wheelchairs to electric wheelchairs, which can keep for a long time.

This article comes from http://www.beiz-tech.com/news/36058.html

The applications and selection of induction lamps

In 1996, Chinese government invented to implement the green lighting process, and introduced to use energy-saving products. Energy saving lamp is the popular name of self-ballasted lamp for general lighting. The superior energy saving lamp have advantages of high efficiency, long span life and compact structure etc. It can take the place of filament lamp directly, and its luminous efficiency and span life is more than six times ordinary filament lamp. So it has great significance to the sustainable development of our economy, to promote using energy saving lamps.

As a professional China Induction lamp manufacturer which has been specialized in scientific research and production of low frequency induction lamps for seven years, YNL Lighting Technology Co., Ltd has developed a complete collection of induction lamps products including industrial and mining series, commercial and civil series, road tunnel series and so on. The advanced test equipment and long-term production practice provides a more powerful safeguard for product quality. Our products capture a large market share for the innovate, practice and modern characteristics.
As we all know, the traditional lighting source is composed of a glass bulb and a filament whether it is filament lamp or high or low pressure gas discharge lamp, electric energy transform to light energy through the filament. Induction lighting couples the high frequency energy in a magnetical field into the bulb in a induction way, which makes the air inside the bulb cumulatively ionized into plasma. Excited atom of the plasma while returning to ground state will spontaneously radiate ultraviolet light that will invigorate the phosphor powder on inner wall of the bulb to give off visible light. Induction lighting fixtures feature with the characteristics including long span life, high luminous efficiency, high energy saving, flicker free, excellent color rendering, high power factor, wide working voltage range, turn on and off frequently, environmental protection effect, can work even under low temperature and wide operating temperature range.

This article comes from http://www.ynllighting.com/news/35986.html