Recently, the transfer ceremony of the operation right of the compressors of the second West-East Gas Transmission Station was held in Gaoling, Xi'an, Shaanxi Province, marking the first commercial launch of a domestic 20 MW electric drive compressor station in China, which started its industrial application.

According to reports, the large compressors used to compress and transport natural gas are the key core equipment for the natural gas pipeline power supply station. A gas station made up of multiple compressors needs to be built every 100 kilometers on the natural gas pipeline.

Like the large jet aircraft engines, the high-power compressor units and auxiliary motors for natural gas pressurization stations belong to the sophisticated technologies and equipment in the world today. Only the largest enterprises in the United States, the United Kingdom and Germany are able to design and manufacture the assembly .

On September 16, 2009, China established the leading group and working group for the localization of key equipment for natural gas long-distance pipelines in China and established a research and development testing center to conduct technological research as a major national science and technology project. PetroChina set up a major project entitled "Research on Key Technology of the Second West-East Gas Pipeline Project" and put in special funds. It was led by the West-East Gas Pipeline Branch and joined with 10 domestic backbone enterprises in the electromechanical manufacturing industry such as Shenyang Blower Group Co., Ltd. To undertake 20 MW-level electric drive compressor unit, 30 MW combustion-driven compressor units and large-diameter high-pressure large Ball Valve equipment localization research and development tasks.

After 20 years of difficult research by the research team, the 20MW electric compressor unit completed the first unit development task as scheduled, filled the gap in the country and broke the foreign monopoly for more than a decade, bringing our enterprises and products into the field The world's advanced ranks. At the same time, the three major components of large-scale long-distance pipeline compressor, high-power frequency converter and super-speed direct-coupled motor have respectively passed the national appraisal. The main technical indicators of the unit have all reached the international advanced level, indicating that the three key technologies and equipment that restrict the long- All successfully developed.

Do a "10%" breakthrough

On the hot summer day, the good news from the West-East Gas Pipeline Project was heartening. The breakthrough of the first domestic 20 MW electric drive compressor station is the key equipment for natural gas pipeline construction. As the natural gas industry of emerging industries, A major breakthrough.

Due to the late start of China's industrial development in the more developed countries, many core equipment manufacturing and key equipment rely on foreign imports, thus leaving many of our industries without a say in development and making industrial self-reliance difficult to achieve.

After many years of unremitting efforts, relying on a large number of large-scale projects such as the West-East Gas Pipeline and the construction of large-scale projects, our country has overcome many technical barriers through primitive innovation, integrated innovation, introduction of digestion, absorption and re-innovation. Equipment localization rate is also rising, and some projects even reached 90%.

However, the remaining "10%" is often the real key. The core equipment determines our country's position in the world's industries. That is, the localization of less than 10% is always the most difficult to achieve because these technologies are the embodiment of true national strength. Countries with technologies have always set up various kinds of barriers and can not obtain them through purchasing. They can only rely on their own efforts.

It is because of this "10%" is so important, but not easy to achieve, so it is even more prominent breakthrough in its significance. At present, our country is in the process of economic transition, especially the development of new industries, and needs more and better advanced technologies to support it. This requires us to continue to increase our efforts to sank our hearts and make more breakthroughs in the "10%", so that the cost of transformation will be lower and the efficiency will be higher.

Heat Exchanger Mold

Mold HVAC VENTS BEFORE AND AFTER
Mold infestation usually comes with a musty odor. If there is mold in your HVAC system, you should be able to smell the strange musty odor in multiple adjacent rooms. If the mold problem is quite severe, you should be able to spot the growth around the ducts, in the vents and the other parts of the ductwork. The spores are too small for spotting without specialized equipment, and you will not see any other overt signs until the infestation is rampant. In most cases, people have to rely on their sense of smell to detect the presence of this stealthy intruder in their homes.

What causes mold infestation in the HVAC air ducts?

A warm location with high water vapor content is particularly prone to mold buildup within the ducts. Water vapor can form within the duct system when cold air passes through, and when there is high water vapor content in the outside environment, the water droplets usually collect instead of evaporating. It forms the most conducive environment for mold growth. The nutrition for the mold usually comes from dust, dirt, dead skin cells, pollen, and animal dander that collects over months inside the duct along with the water.

What are the signs of mold in air ducts?

Here are a few definitive signs of mold growth within home HVAC systems:

A strong mildew-like or musty smell throughout the house or at least in a few adjacent rooms.
Your nose, throat, and eyes feel irritated when you switch on the air conditioning or step inside an air-conditioned room.
You are experiencing allergic symptoms including a runny nose, rashes, and watering eyes.
You or your family is suffering from unexplainable headaches that go away when you step outside.
You feel nausea, fatigue, and dizziness only when you are home.
You can see the mold growing within the intake vents and around the air ducts and drip pans.
Therefore, if you live in a warm climate and your home smells musty all the time, you have the perfect reason to suspect a mold infestation within the central air conditioning system. You should never wait for the visible signs of infestation to manifest before taking action. You may not be able to see specific sections of your HVAC ductwork from the outside. In that case, you should ask for professional help.

How can homeowners tackle the problem of mold and how to get rid of mold in air ducts?

Sometimes, the mold problem is not overwhelming, and homeowners prefer to deal with the issue on their own. It calls for some robust DIY mold removal techniques. The EPA recommends the employment of professional mold removing services when the suspected mold cover spreads over ten sq ft. If the infestation in your heating ducts is not as severe, you can try removing the growth with ingredients that you can find at your local Home Depot. Here is information on how to get rid of mold in air ducts.

Removing Mold from Your HVAC System:

Selection of the cleaning solution is the first and the most crucial step that decides the fate of the HVAC system inside your home and ultimately if you are successful in how to get rid of mold in air ducts. The cleaning agent you choose can either remove mold or let it fester secretly. Therefore, you need to be cautious when selecting a DIY solution for your mold problem.


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