A Heat Exchanger is a device designed to efficiently transfer or "exchange" heat from one matter to another. When a fluid is used to transfer heat, the fluid could be a liquid, such as water or oil, or could be moving air. The most well known type of heat exchanger is a car radiator. In a radiator, a solution of water and ethylene glycol, also known as antifreeze, transfers heat from the engine to the radiator and then from the radiator to the ambient air flowing through it. This process helps to keep a car's engine from overheating. Similarly, our heat exchangers are designed to remove excess heat from aircraft engines, optics, x-ray tubes, lasers, power supplies, military equipment, and many other types of equipment that require cooling beyond what air-cooled heat sinks can provide. Plate Type Heat Exchanger,Plate Heat Exchanger,1000 Kw Plate Heat Exchanger,Beer Plate Heat Exchanger Liaoning LotusNine International Trade co.,ltd , https://www.lj-heatexchangers.com
Bosch analyzes the spring of diesel cars for you in detail
Fu Siqi said: “The clean diesel technology has been developed and matured for decades and already has very good energy-saving and emission-reduction capabilities. At present, the Chinese automobile industry is facing severe challenges in energy-saving and emission reduction, and with the increasingly stringent laws and regulations on energy-saving and emission reduction, Clean diesel technology also has more mature conditions for use. We expect that clean diesel technology will become a viable option for energy conservation and emission reduction."
It is understood that the new "Evaluation Method and Indicators for Fuel Consumption of Passenger Vehicles" requires passenger vehicles to reduce the average fuel consumption to 6.9 liters/hundred kilometers in 2015. China's fourth-phase fuel consumption plan for passenger cars, which will be gradually implemented since 2016, puts forward a tougher target for passenger cars to reduce fuel consumption by 5 liters per 100 kilometers by 2020.
The increasing escalation of national energy-saving and emission-reduction standards raises higher requirements and challenges for automakers, increasing the pressure for automakers to continue to introduce innovative technologies and increase the market share of existing high-efficiency vehicle models. Compared with gasoline vehicles of the same class, diesel engines have significant advantages in improving energy efficiency and will greatly assist passenger vehicle manufacturers in meeting increasingly stringent fuel consumption standards.
In addition to its excellent performance in energy efficiency, low emissions are also a major advantage of clean diesel vehicles. At present, particulate emissions from diesel engines have been reduced by 98%. By using clean diesel technology such as particle traps (DPF), particulate emissions can be further reduced to near-zero emission levels. The clean diesel technology with significant cleanliness and economy is an effective means to meet the energy-saving and emission reduction needs of automotive companies. In the European market, clean diesel technology has been widely recognized, and the proportion of diesel vehicles sold in the SUV models on the market reaches 80%.
With the gradual recognition of the technical level of diesel engines, especially their cleanliness and economy, the number of diesel vehicles in the domestic passenger car market has steadily increased, providing consumers with more choices. At present, China has more than 50 models of diesel vehicles. In addition to SUVs and MPV models of domestic brands such as SAIC, Great Wall, Jiangling, Huatai, Jianghuai and other domestic brands, multinational brands such as BMW and Jeep have also launched diesel for high-end SUV models in 2014. Version.
From January 1, 2015, domestic diesel began to implement the National IV standard, and diesel vehicles using the National III standard engine will not be sold and registered. Compared with the National III vehicle diesel, the sulfur content of the National IV vehicle diesel was reduced from 350ppm (mg/L) to 50ppm, a sharp drop of 85.7%. It is understood that currently developed countries in Europe and the United States mainly use SCR technology (selective catalytic reduction technology) to solve the problem of heavy-duty diesel vehicle exhaust emissions.
In China, all DL-standard diesel vehicles are also equipped with SCR systems. The National IV standard diesel vehicles are required to be filled with national IV vehicle diesel fuel, and diesel exhaust gas treatment fluids must be added to reduce the emission of harmful components in the exhaust gas. The use of tail gas treatment fluids can reduce 90% of nitrogen oxides and 80% of particulate matter in diesel vehicle exhaust.
"With clean diesel technology, modern diesel vehicles have achieved remarkable results in terms of improving energy efficiency, reducing pollution emissions, and providing strong driving force. For the Chinese automobile industry that advocates environmental protection and energy conservation and emission reduction, , Clean diesel vehicles may be the best solution." Fu Siyi said.
There are various types of heat exchangers. our heat exchangers provide air-to-liquid cooling, liquid-to-air cooling, liquid-to-liquid cooling, or air-to-air cooling. With air-to-liquid cooling, heat is transferred from the air to a liquid. One example of air-to-liquid cooling is cabinet cooling. With liquid-to-air cooling, the heat is transferred from the liquid to the air. This type of cooling is generally used to cool process fluids. Liquid-to-liquid cooling is also used to cool process fluids, but the heat is removed by another liquid instead of by air. Lastly, with air-to-air cooling, heat is transferred from one air or gas stream to another.
Types of plate heat exchangers
There are four main types of plate heat exchangers:
Gasketed plate heat exchangers use high quality gaskets and design to seal plates together and protect against leaks. Plates can easily be removed for cleaning, expansion, or replacing purposes, drastically reducing maintenance costs.
Brazed Plate heat exchangers are used in many industrial and refrigeration applications. Due to stainless steel plate composition with copper brazing, they are highly resistant to corrosion. Brazed Plate heat exchangers are efficient and compact, making them an excellent economic choice.
Welded plate heat exchangers are similar to Gasketed plate heat exchangers, but instead the plates are welded together. They are extremely durable, and are ideal for transferring fluids with high temperatures or corrosive materials. Since the plates are welded together, mechanical cleaning of plates is not an option as with Plate And Frame Heat Exchangers.
Semi-Welded plate heat exchangers feature a mixture of welded and gasketed plates. They contain pairs of two plates welded together which are then gasketed to other pairs, therefore one fluid path is welded and the other fluid path is gasketed. This results in a plate heat exchanger that is easy to service on one side and able to transfer more intense fluids on the other. Semi-Welded heat exchangers are perfect for transferring expensive materials since they have a very low risk of fluid loss.
Bosch analyzes the spring of diesel cars for you in detail
“We believe that the coming of diesel vehicles in China is coming. The improvement of diesel vehicle emission standards, fuel consumption restrictions, and advances in clean diesel technology will bring unprecedented opportunities for the promotion of diesel vehicles in China.†The “Clean Diesel SUV Driving Experience Conference†initiated by Bosch, an automotive technology and service provider, was held in Kunming. Fu Sikai, Marketing Director of Bosch Automotive Diesel Systems Co., Ltd., showed extreme confidence in the development of diesel vehicles in China.