An air heat exchanger is a device that is used to transfer heat between two air streams. It is commonly used in heating, ventilation, and air conditioning (HVAC) systems. The heat exchanger can be designed to allow the two air streams to be either separately or together.
Generally, we classify the air heat exchanger into Finned Tube Heat Exchanger, Plate Type Air Heat Exchanger, Seamless Pipe Air Heat Exchanger, Twisted Heat Exchanger, etc. according to its structure.
Air heat exchangers are commonly used for a variety of applications in the HVAC system, such as space heating, cooling, humidification and air circulation. In space heating applications, air heat exchangers are used to transfer heat from outside air to indoor air, in order to provide heat for the building. In cooling and air circulation applications, air heat exchangers are used to transfer heat from an indoor space to the outside. in order to keep the building cool.
The main advantage of using an air heat exchanger is that it is very efficient in transferring heat energy between the two streams without any loss. It is also relatively inexpensive, compared to other types of heat exchangers. Additionally, air heat exchangers are small and compact, making them ideal for applications in tight spaces.
Air Heat Exchanger,Fin Fan Exchanger,Fin Fan Air Cooler,Fin Type Heat Exchanger Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.jmheatexchanger.com
★ valve product quality level Domestic: Although the domestic valve industry in the mid-80s to carry out the use of international standards and joint design, joint development work, and most of the products have adopted the international standards and foreign advanced standards, but due to the implementation of a Gap, the current domestic product quality standards are still lower than the international standard requirements. Mainly manifested in: ⑴ rough wall thickness tolerance; ⑵ casting surface roughness poor quality; ⑶ poor casting dimensional accuracy; ⑷ common internal and external valve leakage is serious, and even some of the valves can not guarantee a reliable maintenance of the period of work; ⑸ drive Device less variety, incomplete specifications, poor reliability, can not meet the needs of large-scale complete sets of equipment. Foreign: The quality of foreign valve products generally meet the requirements of API, JIS, BS and other standards, and the inherent quality of the cast rough high precision, without renovation can be on the plane machining, beautiful appearance, casting a clear, good sealing performance. Packing and gasket variety specifications, to meet the requirements of different conditions. Automatic control valve performance parameters stable enough to ensure that no leakage in use, accurate adjustment accuracy. General valve life can reach 1 to 2 overhaul period, or even longer. ★ valve product price valve product is a very low profit margins products. Although the valve market price every year, but the overall relatively stable. The prices of the products of all enterprises basically follow the valve industry reference price compiled by China General Valve Industry Association. Due to fierce market competition in the valve industry, at present, some manufacturers still implement the 1996 price to win customers. Small quantities of new products and single non-standard products without industry guidance price, by the enterprise pricing. Only the development of high-tech enterprise products and the production of a single small batch of non-standard products, in order to cum high prices, but also competitive. In addition, there are state-owned, private-owned and collective-owned enterprises that place extra emphasis on prices. Among them, collective enterprises are most concerned about price fluctuations, followed by state-owned enterprises. Relatively speaking, joint ventures and foreign-funded enterprises will not price the valve when purchasing the valve (these enterprises pay more attention to quality). ★ valve product usage Valve user industry wider, can be divided into petroleum, petrochemical, chemical, power, water conservancy, metallurgy, urban construction, machinery, coal, food and other (of which the mechanical and chemical industry users most concerned about the valve market, They also have higher valve requirements). In the current market, users use the most, the most common types of valves for the ball valve, globe valve, gate valve, safety valve; followed by the butterfly valve and control valve; the third check valve; fourth for the relief valve, drain valve and steam hydrophobic Valve; the fifth for the shut-off valve and diaphragm valve; sixth for the plug valve, piston valve and other valves. Ball valve, globe valve, gate valve, safety valve and behind the level of the amount of difference between the valve, the total output accounted for a variety of valve production 63.6% (by production units of tons). In the application of the type of valve, machinery, metallurgy, petrochemical, chemical industry, urban construction and other industries most types of valves. In particular, machinery industry, all kinds of valves are basically applied. In addition to the mechanical industry, the safety valve is mainly used in chemical industry; the butterfly valve is mainly used in petrochemical and metallurgy; the diaphragm valve is mainly used in metallurgy, electric power and chemical industry; the check valve is mainly used in metallurgy, chemical industry and petrochemical industry; the stop valve is mainly used in petroleum and Shutoff valve is mainly used in metallurgy, petrochemical, chemical and power; sewage valve is mainly used in petrochemical and chemical industry; ball valve is mainly used in petroleum, chemical and metallurgy; gate valve is mainly used in chemical, electric power and urban construction; control valve is mainly used in chemical industry , Metallurgy, electric power and foodstuffs; plunger valves are mainly used in petrochemical and metallurgy; plug valves are mainly used in chemical industry and metallurgy; pressure reducing valves are mainly used in petrochemical, chemical and metallurgy; steam traps are mainly used in chemical and petrochemical industry. Valve as a common parts, widely used in a variety of industries, but there are three main applications for various industries: 1, routine inspection needs; 2, supporting new projects; 3, emergency reserves. Through the valve market analysis, in the next few years, the overall trend of the valve demand for the upward trend, the valve is a large amount of products, its demand growth in stability. Among them, the most demanding types of valves are: ball valve (15.5%), globe valve (12.9%), safety valve (12.5%), gate valve (12.5%), butterfly valve (10.6% ) And check valve (6.1%). These types of valves, species accounted for 46.7%, its demand has reached 78%. ★ Valve Products Aftermarket Services In today's valve market, valve quality and price are the top two factors most businesses consider (79.8% of users give top priority to quality and 5.8% give priority to price). However, after-sales service valve products as a marketing management of the key links in many industries has been widely used. Valve industry is no exception. Although still not perfect, but the customer has put forward requirements for this factor. After-sales service includes "three guarantees", free installation, technical guidance and regular visits. State-owned and private enterprises most want after-sales service includes the content of the "Three Guarantees" commitment; private enterprises and joint ventures most want to be able to do after-sales service free installation; collective, private and foreign enterprises hope to provide after-sales service technical guidance; State-owned and joint ventures Hope that after-sales service can visit regularly. As the "Three Guarantees" commitment, regular visits and technical guidance is optimistic about the majority of the industry after-sales service (free installation of many companies do not insist), so the valve manufacturer should focus on user needs, providing quality after-sales service to meet the user The demand for after-sales service. ★ valve product quality level Domestic: Although the domestic valve industry in the mid-80s to carry out the use of international standards and joint design, joint development work, and most of the products have adopted the international standards and foreign advanced standards, but due to the implementation of a Gap, the current domestic product quality standards are still lower than the international standard requirements. Mainly manifested in: ⑴ rough wall thickness tolerance; ⑵ casting surface roughness poor quality; ⑶ poor casting dimensional accuracy; ⑷ common internal and external valve leakage is serious, and even some of the valves can not guarantee a reliable maintenance of the period of work; ⑸ drive Device less variety, incomplete specifications, poor reliability, can not meet the needs of large-scale complete sets of equipment. Foreign: The quality of foreign valve products generally meet the requirements of API, JIS, BS and other standards, and the inherent quality of the cast rough high precision, without renovation can be on the plane machining, beautiful appearance, casting a clear, good sealing performance. Packing and gasket variety specifications, to meet the requirements of different conditions. Automatic control valve performance parameters stable enough to ensure that no leakage in use, accurate adjustment accuracy. General valve life can reach 1 to 2 overhaul period, or even longer. ★ valve product price valve product is a very low profit margins products. Although the valve market price every year, but the overall relatively stable. The prices of the products of all enterprises basically follow the valve industry reference price compiled by China General Valve Industry Association. Due to fierce market competition in the valve industry, at present, some manufacturers still implement the 1996 price to win customers. Small quantities of new products and single non-standard products without industry guidance price, by the enterprise pricing. Only the development of high-tech enterprise products and the production of a single small batch of non-standard products, in order to cum high prices, but also competitive. In addition, there are state-owned, private-owned and collective-owned enterprises that place extra emphasis on prices. Among them, collective enterprises are most concerned about price fluctuations, followed by state-owned enterprises. Relatively speaking, joint ventures and foreign-funded enterprises will not price the valve when purchasing the valve (these enterprises pay more attention to quality). ★ valve product usage Valve user industry wider, can be divided into petroleum, petrochemical, chemical, power, water conservancy, metallurgy, urban construction, machinery, coal, food and other (of which the mechanical and chemical industry users most concerned about the valve market, They also have higher valve requirements). In the current market, users use the most, the most common types of valves for the ball valve, globe valve, gate valve, safety valve; followed by the butterfly valve and control valve; the third check valve; fourth for the relief valve, drain valve and steam hydrophobic Valve; the fifth for the shut-off valve and diaphragm valve; sixth for the plug valve, piston valve and other valves. Ball valve, globe valve, gate valve, safety valve and behind the level of the amount of difference between the valve, the total output accounted for a variety of valve production 63.6% (by production units of tons). In the application of the type of valve, machinery, metallurgy, petrochemical, chemical industry, urban construction and other industries most types of valves. In particular, machinery industry, all kinds of valves are basically applied. In addition to the mechanical industry, the safety valve is mainly used in chemical industry; the butterfly valve is mainly used in petrochemical and metallurgy; the diaphragm valve is mainly used in metallurgy, electric power and chemical industry; the check valve is mainly used in metallurgy, chemical industry and petrochemical industry; the stop valve is mainly used in petroleum and Shutoff valve is mainly used in metallurgy, petrochemical, chemical and power; sewage valve is mainly used in petrochemical and chemical industry; ball valve is mainly used in petroleum, chemical and metallurgy; gate valve is mainly used in chemical, electric power and urban construction; control valve is mainly used in chemical industry , Metallurgy, electric power and foodstuffs; plunger valves are mainly used in petrochemical and metallurgy; plug valves are mainly used in chemical industry and metallurgy; pressure reducing valves are mainly used in petrochemical, chemical and metallurgy; steam traps are mainly used in chemical and petrochemical industry. Valve as a common parts, widely used in a variety of industries, but there are three main applications for various industries: 1, routine inspection needs; 2, supporting new projects; 3, emergency reserves. Through the valve market analysis, in the next few years, the overall trend of the valve demand for the upward trend, the valve is a large amount of products, its demand growth in stability. Among them, the most demanding types of valves are: ball valve (15.5%), globe valve (12.9%), safety valve (12.5%), gate valve (12.5%), butterfly valve (10.6% ) And check valve (6.1%). These types of valves, species accounted for 46.7%, its demand has reached 78%. ★ Valve Products Aftermarket Services In today's valve market, valve quality and price are the top two factors most businesses consider (79.8% of users give top priority to quality and 5.8% give priority to price). However, after-sales service valve products as a marketing management of the key links in many industries has been widely used. Valve industry is no exception. Although still not perfect, but the customer has put forward requirements for this factor. After-sales service includes "three guarantees", free installation, technical guidance and regular visits. State-owned and private enterprises most want after-sales service includes the content of the "Three Guarantees" commitment; private enterprises and joint ventures most want to be able to do after-sales service free installation; collective, private and foreign enterprises hope to provide after-sales service technical guidance; State-owned and joint ventures Hope that after-sales service can visit regularly. As the "Three Guarantees" commitment, regular visits and technical guidance is optimistic about the majority of the industry after-sales service (free installation of many companies do not insist), so the valve manufacturer should focus on user needs, providing quality after-sales service to meet the user The demand for after-sales service.