After school or in his spare time, Canto often performs burrowing by hand. Later, Canto’s friend Andreu brought along a pneumatic drill to speed up the process – the two eventually created a 3m deep cave. Andres Canto stands outside his cave. Six years later, Canto tried to create his own cave with separate living room and bedroom with heating, wifi, music system. Now 20 years old, Canto really doesn’t understand what motivated him so much to build this cave but he’s happy with the result. Canto continued: “It’s great, I have everything I need. Working here can be uncomfortable because it’s humid and there’s not much air around, but I found my own motivation to keep going. keep perfecting it every day”. Cantor’s burrow sometimes suffers from flooding and is often visited by insects, spiders, and snails, but this guy usually doesn’t mind. He further explained: “I have always liked building small huts. I live in the countryside and when I find discarded wood, I will build a nice house,” added Cantor. Canto estimates that the project costs no more than €50 (£43) as most of the building materials are much cheaper than he expected. Canto mainly burrows using buckets to bring up the soil, but eventually decided to incorporate other digging techniques such as using a pulley system. Canto also reinforced his cave’s roof using a vaulted entrance and vaulted ceiling with columns, as well as concrete walls to prevent collapse. Image of the cave during the previous construction. Video of Canto’s cave quickly went viral on social media and immediately attracted the attention of local authorities. Canto said: “Since I was the first to do such a thing, when the local officials arrived, there were no specific reports of it. It was not a basement, nor was it a warehouse, it’s just a well-built hut in the ground.” Amazingly, Canto’s parents were also normal with their son’s “retreat” in the ground. Canto even said: “My mother went down to the cave and told me it was smaller than the one in the video”.

Andres started digging a cave in which he created a bunker because at the age of 14, after an argument with his mother, he often wanted to hide in the cellar to “breathe”. Arguing with his mother, the boy dug underground tunnels to “breathe”. (Photo: Twitter) After choosing a favorable location, the 20-year-old called for help from his friend, who has a pneumatic drill, and together they created a cave about 3 meters deep. Andres reinforced the roof, walls with concrete and columns, then created a cozy atmosphere inside so he could relax with friends in the cellar. The total cost of creating the underground tunnel is only 60 USD. “Andres is determined to get the job done, because he has always loved the job. Since he was a child, he often built small huts and treehouses,” wrote the New York Post. “I have always loved building huts. I live in the countryside and often find a suitable place for me to build a small house,” Andres shared. However, Andres’ hideout sometimes flooded and was regularly visited by insects, spiders and snails, but the amateur builder was not at all shy about this problem. “I have no problem with them. I knew I might have destroyed their home, so I gave them a chance to build a new one,” Andres added. Meanwhile, Andres’ parents show a love for his underground lair. Now it is important that the cellar is verified by the local authorities. The inspectors had to make sure that the shelter met all the safety requirements so that the guy and his friends could hang out in it without endangering their lives. Also related to tunneling, recently, rescue forces in Mexico have just rescued a man who was accidentally trapped in the same tunnel he dug to secretly spy on his girlfriend. To avoid detection, he dug a tunnel for several days to go underneath his girlfriend’s house in Puerto Penasco, Sonora state, on the Gulf of California. After the incident, the new girlfriend told police that she had heard strange noises for weeks before but only thought it was cats. When rescuing, authorities said the victim was drunk and severely dehydrated. After being rescued, this man is currently detained for investigation.

Day after day after school, he used a hoe to expand his cave bit by bit. The speed of “construction” increased dramatically after Canto invited another friend to bring a pneumatic drill, and together they created an extremely unique 3 meter deep cave. The way down to the cave. Accordingly, this cave also looks quite “cool” when it has a living room, bedroom with heating, Wi-Fi network and music system. Canto said he reinforced the roof and walls of the cave with concrete and columns to prevent collapse. The total cost of buying the necessary building materials for this “project” only costs about 60 USD (about 1.4 million VND), Canto revealed. Inside the cave of the Spaniard. Occasionally, his cave also has a bit of trouble dealing with floods and is often visited by insects, spiders and snails. However, the amateur builder is not too concerned about these “uninvited friends” and shares: “There is no problem. Since I have invaded their home, I will have them build a new house on my wall.” A post about Canto’s “dwelling” on social media caught the attention of local officials. After that, the government sent inspectors to Canto’s house to check the strength and safety of the cave. Andres Canto in his cave. Although he doesn’t live all day in the cave, Canto spends a lot of his free time down there. His parents also did not show any objection to the son’s work. Canto said his mother watched the video of the cave and went down to see it herself: “My mother went down there too and said it was smaller than the one in the video.” With this unique idea, if at any time you intend to leave home because you are angry with your parents, but you are afraid of ghosts and dark, Canto has a place to stay… temporarily! Tu Uyen According to New York Post, Zenger News

Localities must review and increase their capacity for emergency, active resuscitation and treatment of Covid-19 patients. Illustration The official cable stated that, from April 28, 2021 up to now, the situation of the Covid-19 epidemic has had very serious developments. The whole country recorded over 2,000 cases of Covid-19 in 30 provinces and cities; 9 deaths. About 10% of cases have severe and very severe course. Some localities do not have good preparation for emergency and active resuscitation conditions, so when there are serious cases, they are awkwardly handled and transferred to higher levels, putting pressure and overloading on end-line hospitals. Faced with this serious challenge, the National Steering Committee for Covid-19 Prevention and Control is the head of the Steering Committee for Covid-19 Prevention and Control; Chairman of the People’s Committees of provinces and cities urgently consolidate the conditions of facilities, equipment and emergency vehicles, especially ventilators, central oxygen systems, compressed air, consumables, medicines. necessary; strengthen the capacity of emergency and active resuscitation at provincial and municipal general hospitals and hospitals assigned to collect and treat Covid-19 cases. Provinces and cities that have not detected Covid-19 cases immediately send treatment teams to train and improve their diagnostic and treatment capacity at last-line hospitals (or train online). The National Steering Committee for Covid-19 Prevention and Control criticized hospitals assigned to treat Covid-19 in some provinces and cities for their lack of initiative in emergency work, active resuscitation, and case treatment. disease Covid-19. The Steering Committees for Covid-19 Prevention and Control in the provinces and cities direct the directors of the health departments and the directors of the hospitals to review the capacity of hospitals to treat Covid-19 patients in the area; prepare conditions to receive, isolate and treat patients according to the motto “4 on the spot”. The Department of Health and hospitals report daily case progress, treatment capacity, emergency, and active resuscitation on the online software cdc.kcb.vn. Localities are ready to prepare plans to assign at least one hospital in the area as a field hospital (based on the local population size), including arranging emergency and intensive care areas and prepare medical equipment and other conditions. Step 1: Visit https://www.bluezone.gov.vn or download directly at App Store or CH Play. Step 2: Once downloaded, the application will ask for permission to use Bluetooth to record contact with other users who have installed Bluezone. If Bluetooth is not already on, drag the status bar and turn on Bluetooth; or go to Settings, select Bluetooth and turn it on. Step 3: Once the installation is done, click Scan Around. If someone near you less than 2m has used Bluezone, the application will automatically identify these users and put them in the contact list.

Inside Canto’s cave. After being scolded and criticized by his parents, 14-year-old Canto started digging in his family’s garden after school. Finally, Canto invited a friend to use a pneumatic drill to create a 3m deep cave. Canto also reinforced the roof and walls of the cave with concrete and columns. The total cost of the project is only about 60 USD (nearly 1.4 million VND). “I have always loved building small huts. I live in the countryside and when I find discarded wood, I build a nice house,” Cantor said. Cantor in his cave. Cantor’s cave sometimes suffers from flooding and is often visited by insects, spiders and snails, but the amateur builder doesn’t mind. A social media post about the cave caught the attention of local officials. The authorities have sent inspectors to check, to ensure the safety of the cave. “My mother also came down and said it was smaller than the picture in the video,” Cantor said. Ngoc Trang (According to the New York Post)

As a major parts manufacturing company for industrial machinery, SMC China resumed operations in early February 2020, while the epidemic swept through China. But within a month, production activity here returned to pre-epidemic levels. After 3 months, SMC has 0 infections among nearly 7,000 employees, according to Think China . SMC China General Manager Ma Qinghai said that when the virus spread at the end of January 2020, many companies in China switched to producing ventilators and masks. This led to a sharp increase in orders received by SMC China. Therefore, the return to the operation of the company is paramount. The core strategy of SMC China is to keep the defense and not allow the virus to have a chance to stay. “Our employees know each other face to face and are familiar with the factory environment. As long as we secure the entry point, there will be no cross-contamination. The key lies here,” Ma said. Check employee health via mobile phone SMC China is a balance model between the need to prevent the epidemic and the need to return to work. Before returning to work, the company created a mobile app and asked employees to report their temperature and health condition every two days during their time off. This ensures workers stay healthy when they return to the factory from locations across China. Workers at the TCL air conditioning plant in Jiujang city are required to bring their own towels to dry their hands after soaping, according to an online notice. Photo: Getty. According to Mr. Ma, when he first returned to work, the goal was to ensure that there was no infection in the dormitory. To do this, the company arranges for all workers returning to Beijing to be isolated for 14 days before entering the dormitory. Each dormitory room is only occupied by 2-3 people to reduce the possibility of cross-infection. The production department must daily submit detailed records of temperature checks, workplace disinfection, mask distribution, and cafeteria meal times. The minutes also include information of each person in charge of each content in the anti-epidemic work. More than 3 months after returning to operation from February 3, 2020, SMC China has been able to supply products to many supply chains that produce anti-epidemic supplies, such as mask production machines for more than 500 companies and core components for dozens of ventilator factories. Stricter than authorities regulations Chinese authorities set strict regulations for companies that return to work, such as having to open office windows three times a day, 30 minutes each time In the capital Beijing, companies are required to stop fingerprinting and prohibiting employees from sitting across from each other during lunch. According to the Washington Post , some companies set anti-epidemic measures stricter than the regulations of the authorities. One of these companies is iPhone assembly plant Foxconn Technology Group – China’s largest private employer with more than 1 million employees. At Foxconn’s iPhone manufacturing complex in Zhengzhou, Henan province, workers are grouped into groups of 20 and have to live together day and night, according to a Zhengzhou government notice. Part of the manual instructing workers how to cover their mouths when sneezing to prevent the virus from spreading at the Foxconn factory in Zhengzhou. Photo: Foxconn. “This group of workers work, move, live, and eat together to ensure each person’s path can be traced,” the statement read. Reply Washington Post , a 36-year-old worker at Foxconn said that every morning, each worker is given a mask and has their temperature checked. At lunch, they ate at the high partition canteen. “There are partitions on the table so we can’t see or talk to each other,” the worker said. Seats at the Foxconn cafeteria are affixed with a QR code for workers to scan before eating. This helps the company understand who eats where and when, the company said in a statement. At the dormitory, workers must leave their coats and bags at a designated place for disinfection. Foxconn even installed infrared cameras to check the temperature of employees as they pass by. In a statement, Foxconn said it was following “all medical and hygiene recommendations… including the use of nucleic acid testing and chest X-rays where necessary.” The company said that by the beginning of April 2020, it had produced 10 million medical masks, of which the goal was to produce 2 million pieces per day for internal use. Helping employees overcome fear According to the Think China , the strict measures at Chinese factories encountered no obstacles because the company proactively reported information and the workers’ own virus fears. “The initial problem was to help workers overcome psychological fear. The rigorous and comprehensive measure makes them feel safer… Everyone knows such strict regulations are put in place to ensure their own health,” said Hiroyuki Hamada, President and CEO of Renesas Semiconductor, said. Renesas Semiconductor is a semiconductor company with a factory in Beijing. Renesas Semiconductor’s factory has about 600 workers, of which more than 90% live in company dormitories. Before the company resumed operations on February 10, 2020, more than half of the workers were on vacation in their hometown and were picked up by the company to Beijing. Those returning by public transport must live 14 days in a segregated dormitory. Workers have lunch at Renesas Semiconductor. Photo: Think China. Tables at the Renesas Semiconductor canteen are also numbered. Workers must record the number of tables and meal times for tracking purposes. “With these measures, we were able to maintain zero cases for the past few months. Up to now, 90% of the preventive measures are still in place, ”Mr. Hamada replied Think China in May 2020. Thanks to the above epidemic prevention measures, China’s huge economic engine can be safely restarted. According to data from the Ministry of Industry and Information Technology, as of April 21, 2020, industrial enterprises that generate at least 20 million yuan in revenue have achieved an operating ratio of 99.1 % and the rate of workers returning to the factory is 95.1%.

USS San Francisco was one of the first Los Angeles-class nuclear attack submarines of the United States, built in 1972 and commissioned on April 24, 1981. It is also the quietest submarine in the US Navy. The bow part of the ship was crushed after hitting a mountain. Photo: National Interest USS San Francisco has a displacement of 6,900 tons when submerged, 110 meters long and 10 meters wide. The train is equipped with a General Electric PWR S6G nuclear reactor with a capacity of 35,000 horsepower, helping it to move at a maximum speed of 61km / h. According to the National Interest, the accident occurred with the Los Angeles-class submarine USS San Francisco (SSN-711), on January 8, 2005. At the time of the collision, the ship was near Guam conducting training and preparing to sail to Australia. At that time, the ship was diving at a depth of 160m and moving at a great speed, more than 48km / h. The impact was very strong. The sailors present in the dining room were thrown into the air. In a 60-minute interview, Brian Barnes, a submariner, recalled: “I just saw people lying everywhere. Glass was broken, dishes were splattered, sailors groaned from their injuries, screamed.” The bow of the USS San Francisco was severely damaged, 30m of the front hull was flattened and exposed to the sea. Water flooded the submarine. The urgent task at that time was to urgently pump compressed air into the ballast tanks of the submarine to help the ship float to the surface. The USS San Francisco has a total of 127 crew members. The collision left 98 people injured and many of them were unable to continue operating the ship. Sailor Joseph Allen Ashley was wounded in the head and later died. Another sailor broke both arms but still managed to open the submarine’s air valve to fill the ballast tanks. Danny Hager, who monitors the submarine’s depth gauge, had a terrifying experience after the valves were opened. “I told everyone that the ship was at a depth of 160m. And I kept waiting, 5 seconds, 10 seconds passed and so on I don’t know how much longer, the ship was still at a depth of 160m. The atmosphere is very calm because everyone is waiting for me to announce that we are preparing to come up.” The problem was that the ballast tanks at the front were broken in the collision. The air escapes to the outside. 60 seconds passed and the ship remained unchanged in depth. Fortunately, the aft part of the submarine began to point upwards as the ballast tanks at the aft were filled with compressed air. Danny Hager now feels less worried: “It feels really relieved when I announce the ship has risen to a depth of more than 152m”. Finally, the USS San Francisco also surfaced, but the journey home is still quite far. Fortunately, the nuclear reactor was not damaged in the impact. The crew steered the ship back at a speed of 16km/h and so to return to Guam, it took the ship 52 hours. Unexpected causes Despite its immense firepower and nuclear propulsion, the USS San Francisco, like all submarines, relies on charts providing data on the topography of the seabed. After the investigation, the US Navy found that the submarine used old charts that did not mention the submarine mountain range in the area of ​​​​the ship’s operation. Meanwhile, other maps warn about this mountain range. The charts used by the crew of San Francisco were provided by the Defense Mapping Agency in 1989. By 2008, a study by the University of Massachusetts showed that images obtained from the Landsat satellite showed An underground mountain range more than 30m above the seabed in the area. However, the US Navy did not update this information to the chart. During the repair, the bow of the USS San Francisco was removed and replaced with the bow of the submarine USS Honolulu, which was about to be decommissioned. USS San Francisco rejoined the fleet in 2009 and served for another seven years. It was later converted into a training submarine. Ship commander Kevin Mooney was reprimanded for this unfortunate accident. Several sailors received medals for their brave actions when the ship was in distress. Only the sailor who died Ashley is inscribed at the Navy Memorial in Washington DC So how could the ship survive the high-speed crash into the underground mountains? In 1963, after the sinking of the submarine USS Thresher, the US Navy established the SUBSAFE program. The goal of this program is to ensure that the hull will remain pressurized in the event of an accident and that it can float. This program makes keeping nuclear reactors safe and making them recover from accidents a top priority. If the ship can surface and the nuclear reactor continues to operate, the crew will have a good chance of survival. USS San Francisco has ensured those conditions. Thus, the fact that the USS San Francisco can “survive the accident” is the result of the dedication and relentless research efforts of the US submarine force.

Solar power is Qatar’s strength

Huge solar power potential

Qatar and the GCC countries have the highest potential for harnessing solar energy, based on the annual amount of sunshine (including hours of sunshine and solar intensity). Not to mention, July, August and September every year is the time when the whole region has the highest amount of electricity consumption, due to the very high demand for air conditioning and also a strong solar irradiation time most of the year.

Therefore, the development of solar power technology is the most promising energy sector for Qatar. In early 2020, Qatar announced it would build a solar power plant with a peak capacity of 800 MW at Al Kharsaah, comprising 2 million two-sided photovoltaic modules (Bifacial technology) combined with tracking equipment. width over 1,000 hectares. Al-Kharsaah solar power plant will be built on 10km2 near the capital Doha, expected to be completed in 2022.

The Al-Kharsaah Solar Power Plant will reach maximum capacity when solar radiation peaks at noon – the time when the demand for electricity is highest during the day. With a two-sided photovoltaic module system incorporating a monitoring device to align the angle of sunlight absorption, the correlation between solar power production and electricity demand will be strengthened.

Total Energy (France) and Marubeni Trade and Investment (Japan) will sponsor the Al-Kharsaah Solar Power Plant Project, with a total investment of about 500 million USD (ie 0, USD 6 / Wp for Bifacial technology with tracker). This figure shows that the solar energy sector is on a constant and relentless trend of cost reduction. With the use of monitoring devices with a two-sided module, the load factor of a solar power plant can exceed 30% – an exceptionally high level in the solar sector, due to the home load factor. Average solar power in the world is only about 20%.

Fresh water is Qatar’s big problem in climate change

Electricity and water – Two main concerns

Solar PV can play a central role in meeting the growing demand for electricity and water in Qatar, as the two sectors are interrelated (large gas thermal power plants can produce water from desalination). However, the demand for water and electricity in summer is very high: Electricity peaks reach about 8 GW, double the capacity in winter; while the water demand is about 20% higher.

It should be noted, in recent years, electricity demand in Qatar has grown three times faster than the world average due to the country’s strong economic growth and infrastructure projects. giant. The high level of electricity consumption is also due to the government price subsidy that makes electricity prices almost “free” in Qatar, suitable for all purposes.

The demand for fresh water in Qatar is growing at a rate of 12% per year, mainly due to industrial development, population growth as well as increased irrigation in the agricultural sector and anti-desertification. Since then, the desalination process has been significantly accelerated, contributing to increased power consumption.

Qatar in the Global Energy Transition Race (Next and Out)

Increase the share of renewable energy

Qatar is implementing a series of measures to reduce greenhouse gas emissions and assert its position as a leader in the development of new technologies.

Domestically, Qatar aims to increase the share of renewable energy in electricity consumption to 20% from 2024. At the same time, the transformation of energy in Qatar is also the realization of the development of public transport systems. new projects, including electric taxis and compressed natural gas (CNG) buses.

Qatar has established official bodies to deal with climate change (for example the National Committee on Climate Change – the national body responsible for climate policy formulation). Moreover, Qatar has participated in the GHG reduction program of the World Bank (WB) and the Global Association for Reducing Gas Emissions (GGFR). More specifically, Qatar Petroleum National Petroleum Company sets a “zero gas emission” goal by 2030. This goal will help develop new insights for other gas producing regions. Qatar Petroleum is promoting carbon capture and storage projects as it sees customers increasingly opting for low-carbon resources.

Qatar will need to make efforts to invest in low-carbon energy technology, by developing goals for energy efficiency and carbon concentration. Thereby, the challenge of Qatar is the reconciliation of new goals in the fight against climate change with the development of the domestic energy sector, along with new and “cleaner” sectors.

In recent years, electricity demand in Qatar has grown three times faster than the world average due to the country’s strong economic growth and huge infrastructure projects. The high electricity consumption is also due to the government price subsidy that makes electricity prices almost “free” in Qatar.

This also makes it somewhat difficult for the user to choose; If you are looking to buy an air pump but have not yet chosen a good and suitable product, please refer to the following top 5 air compressors in Yen Phat!

Puma Air Compressor PX-2100 (2HP)

The Puma PX-2100 is favored for its high performance, meeting the diverse work requirements of users. With a capacity of 2HP, the working pressure is 8-10 bar (kg / cm²). This quality air compressor is suitable for use in small motorbike – car repair and maintenance shops; or used to spray paint, dry the car after washing and work using compressed air in the home.

Quality, genuine and reputable air compressors at Yen Phat electronics

– Maximum pressure: 10kg / cm²

– Capacity: 2 Hp

– Weight: 95 Kg

– Tank capacity: 95 liters

– Working pressure: 8kg / cm²

– Source voltage: 220V

– Air flow: 255 liters / min

– Speed ​​of rotation of compression head: 830 rpm

Number of compressor head cylinders: 2

– Size: 117 x 49 x 85 cm

Puma Air Compressor PX-7250A (7.5HP)

PX-7250A is a quality air compressor, typical of the cult brand Puma. Equipment with low noise, within the safety threshold should be used. In addition, the machine is also equipped with a motor wrapped 100% copper wire, for smooth operation. Along with that is the shell designed to reduce sound, shock absorbers, reduce vibration; thereby helping the machine to always operate in the most stable state.

Puma PX-7250A 2 cylinder air compressor with quiet operation, less vibration when operating

– Maximum pressure: 10kg / cm²

– Weight: 301 Kg

– Tank capacity: 228 liters

– Working pressure: 8kg / cm²

– Source voltage: 380V

– Air flow: 940 liters / min

– Speed ​​of rotation of the compressor head: 750 rpm

Number of compressor head cylinders: 2

– Capacity: 7.5 Hp

– Size: 161 x 70 x 115 cm

Palada Air Compressor PA-10300A

Palada PA-10300A is a series of high quality three-head piston compressors, used in many business units. It offers high working efficiency, providing large, uniform and continuous compressed air flow. To make the best investment decision, choose the right product for your usage requirements; Users can refer to the specifications of the machine below.

PA-10300A 3-cylinder compressor for large compressed air flow

– Working pressure: 8kg / cm²

– Air flow: 1538 liters / min

– Speed ​​of rotation of the compressor head: 816 rpm

Number of compressor head cylinders: 3

– Capacity: 10 Hp

– Tank capacity: 300 liters

Palada Air Compressor PA-4200

Palada PA-4200 piston compressors are highly appreciated by users for their good performance. With a capacity of 4HP, working pressure of 8 bar, large air flow of 360 liters / min; Helping the machine up slightly quickly, providing large compressed air flow, meeting the needs of many units. Tank capacity up to 200 liters, for the ability to store large amounts of compressed air, limiting the shortage of compressed air during operation.

Palada PA-4200 with the ability to rapidly rise, provide a large amount of compressed air, minimizing gas shortages

– Working pressure: 8kg / cm²

– Source voltage: 380V

– Air flow: 360 liters / min

– Speed ​​of rotation of compressor head: 1050 rpm

Number of compressor head cylinders: 3

– Capacity: 4 Hp

– Tank capacity: 200 liters

– Weight: 127 Kg

– Size: 130 x 46 x 98 cm

Kumisai KMS-55300 air compressor

One of the quality air compressors at Yen Phat electronics is the Kumisai KMS-55300 with many outstanding advantages in design, features, and large compressed air capacity. This will definitely be the perfect choice for today’s business units. Below are the specifications of the product, please refer to it.

Kumisai KMS-55300 possesses many outstanding advantages in design, features, and stable supply of compressed air.

– Maximum pressure: 10kg / cm²

– Working pressure: 8kg / cm²

– Source voltage: 380V

– Air flow: 600 liters / min

– Speed ​​of rotation of compression head: 850 rpm

Number of compressor head cylinders: 2

– Capacity: 5.5 Hp

– Tank capacity: 300 liters

– Weight: 181 Kg

– Size: 148 x 52 x 111 cm

Above are the quality and prestige air compressors, which are distributed by genuine Yen Phat electronics. If you need to order or need assistance consulting to choose the most suitable product for your unit’s usage requirements, please contact Yen Phat Company to get prompt and free support from its staff .

Since the company’s energy management system (Energy Management) came into operation in 2014, information on equipment operation and energy consumption has been reviewed and evaluated comprehensively. In fact, the plant’s lines are invested in many stages, asynchronous, so it is necessary to research to have appropriate solutions, especially related to synchronous lines and energy consumption, positive pressure. to use new techniques and technologies to use energy economically and effectively, improve the life of equipment and reduce costs.

In addition to internal issues such as promulgating regulations and instructions related to operating and using equipment to save energy, raising the user’s awareness into a cultural feature, the Company has implementing many renovation projects. Typically the major improvements are as follows:

Water supply system improvementPreviously, using only one upstream station and mixing pumps with different characteristics, causing energy loss, often having problems in the pump system and not meeting production needs well.

The renovation project is divided into 2 independent stations and connected in series: the upstream station reduces the pressure and increases the flow to supply part of the transmission line and the booster pump station is used for the required equipment. higher pressure. Each of these pumping stations includes a number of pumps with the same output and ensures the characteristics of parallel-connected pumps are equivalent and each station has 01 inverter pump as the main driver to automatically control the remaining pumps according to the applied pressure.

Always maintain the desired pressure in each area and optimize power consumption when demand changes to reduce power consumption in this area. The equipment’s age has also been markedly improved.

Install the inverter that controls the fan motor speed: To replace the flue air pressure control system with the previous inlet throttle.

When the power consumption is in proportion to the rate of 3 with the change of speed: N1 / N2 = (n1 / n2) 3 should show that in addition to the ability to respond to the fast system, the power consumption is very saving. After replacement, it was verified that power consumption decreased by more than 20% compared to before.

Replaced Russian 20/8 Piston Air Compressor: By Ingersoll-Rand R160 inverter controlled air compressor from USA to help adjust pressure as desired and save energy consumption.

Installation of low voltage compensation system: In addition to 6KV compensation, automatic compensation cabinets are installed for low voltage distribution stations; directly install compensation cabinets for AC motors> 22 KW, right near where the engine works; help to improve quality Electrical Power for the gear and reduce losses, reduce current through the switch for direct compensation motors.

Install the LEDs: For use areas with different requirements 150 lux, 200 lux, 300 lux, 500 lux, and have separate switches that are clearly communicated and specifically assigned.

Replace the oven ceiling with new materials: Previously made of heat-resistant concrete, there was a large heat loss with the temperature measured above 100 degrees C, the Company replaced with a new material with ceramic fiber, the temperature dropped to around 70 degrees Celsius and ensured ensure better life during work

Installation of aeration systems for filter towers: Helps to dispel the debris that clumps up that previous backwash is ineffective. Helping the filter towers always in effective working conditions, reducing pump power consumption due to reduced filter pressure and increasing the time to change filter material after 3 years instead of yearly as before, reducing production costs.

Renovation of replacement materials for cooling towers: The previous material is PVC with a short working time that must be replaced every 3 years and has a lot of dirt, reducing the heat exchange process is replaced by a Composite material (FRP) with better heat resistance. , no fouling and Splash Bar design to create turbulent and splashing flow for better exchange and cooling (the previous temperature through the Tower only decreased from 5-7 degrees, raised to 10-12 degrees C), reduce the power consumption for the cooling fan and the service life of the material is more than 10 years.

With a series of technical solutions above, energy audit results in 2018 show that energy management activities in Vietnam – Singapore Steel have achieved quite good indicators, power consumption and FO oil have both decreased. Specifically for electricity, from 2015 to 2020, auxiliary power will decrease from 21.70 Kwh / ton to 20.48 Kwh / ton of product; Electricity for production decreased from 97.97 KWh / ton product to below 86.79 KWh / ton of product. FO oil for billet baking in 2015 to 2020 will decrease from 32.50 liters / ton of products to 31.29 liters / ton of product.

Sharing experiences in energy saving activities at the Conference of the Ministry of Industry and Trade

Energy management activities, research and application of science, technology and new technology in the production process help reduce consumption and optimize expenditure. From there, it will contribute to improving productivity, product quality, reducing costs and increasing product competitiveness in the market.

Moreover, this also shows the sense of responsibility, increases creativity and professionalism in the work of the technical team of the Company. Using energy economically and efficiently is a very unique culture of NatSteelVina and this activity has been shared at a number of specialized conferences of the Ministry of Industry and Trade.

The company will continue to uphold its existing results and traditions to grow and prosper.