? HVAC (Heating, Ventilation and Air Conditioning) includes heating, ventilation and air conditioning.
? Heating, also known as heating, is to provide loads to buildings according to people's requirements and ensure that the indoor temperature is continuously higher than the external environment. Generally, a radiator or the like is used.
? Ventilation: the process of sending air into or out of a room. Replacing the air in a building (called indoor air) with outdoor air (called fresh air or fresh air) is usually divided into natural ventilation and mechanical ventilation.
? Air conditioning: (air conditioning)-air conditioning is used to adjust the temperature, humidity, cleanliness and airflow speed in a room or space, and provide enough fresh air for the building environment control system.
It mainly trains professional and technical personnel who can work in the following three aspects: (1) Can be engaged in the design, installation, debugging and operation of systems and equipment such as building heating, air conditioning, ventilation and dust removal, air purification, gas application and related urban heating and gas supply systems and equipment. (2) Be able to design, install, evaluate, debug, operate, maintain, analyze and manage environmental systems and energy supply facilities in industrial buildings and large modern buildings based on engineering technology and intelligent building systems. (3) Be able to adapt to the needs of low-carbon economic construction and social sustainable development, have basic theories and professional skills in building energy-saving design, construction and operation management, have a wide range of knowledge, and have the ability to expand and penetrate into related fields of civil engineering, adaptability and practical work ability.
? After graduation, the mainstream is engaged in the planning and design of heating, ventilation, air conditioning, purification, cold and heat sources, heating, gas, R&D and manufacturing, construction and installation, operation management, system guarantee and other work in design and research institutes, engineering construction companies, equipment manufacturing companies and operating companies. To sum up, it is to design, engage in R&D, install equipment and sell equipment.
HVAC designers are specialized in HVAC engineering design and drawing, commonly known as "drawing dogs", mainly major design institutes and design companies. Of course, there are also a few designs in air conditioning manufacturers and construction units, mainly to deepen the cooperation between drawings and technology.
The mainstream income level of the profession of HVAC designer is generally around 4K~8K, and the highest income level can reach 20K~30K, and then the year-end output value will be divided into dividends. At the end of the year, the company will count the workload for one year and determine the final reward. The main reasons for the wage gap are the region, the scale and benefit of the design institute, my technical level and my personal certificate.
In addition to normal work income, HVAC designers usually use their spare time or spare time during the day to do amateur design, which is actually "taking private work" in popular terms, and this will also happen in many design industries. As long as the energy allows, sometimes the income from doing private work far exceeds the personal salary. Of course, this requires individuals to have strong network resources and drawing quality.
In addition, it is worth mentioning the personal qualification certificate. For HVAC designers, two certificates are more important, one is a registered equipment engineer and the other is a first-class architect. Especially registered equipment engineers, when the times were good a few years ago, they simply "linked" this certificate and earned hundreds of thousands a year. Even those with certificates have an annual salary of more than 20W. The gold content of the first-class constructor is slightly lower, but the same difficulty will be much smaller, and generally there are tens of thousands of incomes a year.
Different regions and different types of design institutes are different. Generally, they usually go to the company at 8: 30 or around 9: 00 in the morning, turn on the computer to browse the web page, check the mailbox for suggestions on drawing modification, then take a look at the work schedule of the day and start working (drawing, drawing, drawing). Noon is the lunch break, which lasts until about two o'clock in the afternoon. If the project is busy, there is basically no lunch break. After a while, you have to get up and continue painting, painting and painting. Then continue to work until after work, usually around six o'clock. Sometimes I have to work overtime. It can be said that it is common to work overtime until eleven or twelve.
The first is the basic attitude, no matter what you do, you must have a down-to-earth attitude, especially for the design, you must be able to calm down and deal with it, especially some project systems are very complicated.
? To endure hardship, we should spend our time reciting the latest national standards and landmark specifications. At present, there are as many as 7 1 national standards and codes directly related to HVAC specialty, which must be mastered in design.
? Proficient in drawing skills and techniques, after all, is a housekeeping guy, drawing fast in a certain sense means earning more, so this must be proficient.
? We should also pay attention to communication with various majors, be good at communication, and sometimes get twice the result with half the effort.
? Not only limited to the previous theoretical knowledge, but also know more about the requirements of new products and processes around the world and their advantages and disadvantages.
Being innovative and daring to innovate is an excellent HVAC design.
The concept of home central air conditioning originated in the United States and is an important part of commercial air conditioning. Household Daikin central air conditioning has realized the air conditioning of all living rooms and improved the overall quality of life, and overcome the shortcomings of split wall-mounted and cabinet air conditioning, such as local treatment of partitioned rooms and uneven airflow. At present, central air conditioning, independent heating and fine decoration are the three major development directions of high-end properties in China. "Household Daikin Central Air Conditioning" is an air conditioner in which a host machine supplies air through an air duct or drives multiple cold and hot water source terminals to control different rooms and achieve the purpose of indoor air conditioning. Using duct air supply mode, a host computer can control multiple different rooms, effectively improving indoor air quality and preventing air conditioning diseases. Indoor units can choose horizontal concealed installation, exposed ceiling installation, ceiling installation, wall hanging installation, etc. Various fan-coil units can be independently controlled.
Advantages of central air conditioning system
? 1. The whole family meets the comfortable conditions and avoids the human discomfort caused by other splitters, such as direct air cooling and uneven indoor heat and cold;
? 2. There is only one outdoor unit to avoid damaging the outdoor landscape;
? 3. Decorate well, cooperate with the decoration without exposed pipelines, and the whole system is in a hidden state;
? 4. Each indoor unit can be independently controlled to save energy to the maximum;
? 5. Simple operation, automatic operation and no maintenance;
Low-temperature floor radiant heating (hereinafter referred to as floor heating) takes the whole floor as the radiator, heats the whole floor evenly through the heat medium in the radiant floor, and conducts from bottom to top by using the law of heat storage and upward radiation of the floor itself, thus achieving the purpose of heating. Low-temperature hot water floor radiant heating system takes hot water with a temperature not higher than 60℃ as the heating medium, circulates in the heating pipeline, heats the floor, and provides indoor heating through ground radiation and convection. Low-temperature hot water floor radiant heating system is an energy-saving heating method, which can effectively adjust the indoor microclimate. It has the advantages of high thermal comfort, energy saving, convenient operation and maintenance, no land occupation, no pollution and long service life, and has been used in Europe for decades. After the introduction of low-temperature hot water floor radiant heating in China, it has been widely used, which accords with the task and goal of building energy saving and household heat metering in China.
Advantages of central heating system
? 1, floor heating is more comfortable than traditional air conditioning.
? Even in the dead of winter, you can walk barefoot on the floor and watch the baby crawling around the room without worrying that your family will catch cold because of the cold floor.
? 2. Floor heating is more energy-saving than traditional air conditioning.
? The traditional convection radiator heating system requires a water temperature of 80~95℃, while the low-temperature ground radiation heating only requires a water temperature of 35~50℃. Under the same comfortable conditions, the temperature can be reduced by 2~3℃. At the same time, the floor heating does not transfer heat, and the heat loss is greatly reduced.
? 3. Floor heating is healthier than traditional air conditioning.
Uniformly distributed thermal radiation can avoid dust generated by cold and hot convection, and lower room temperature reduces the evaporation of indoor air moisture, making indoor air quality better. In addition, floor heating also conforms to the health concept of "warm feet and cool roofs" in traditional Chinese medicine.
4. Floor heating is more economical than traditional air conditioning.
The thermal comfort of floor heating with an average indoor temperature of 19~2 1℃ is comparable to that of a traditional radiator heating room with an average indoor temperature of 24℃. If the average indoor temperature is reduced by 1℃, the system energy consumption can be saved by 10%, which can actually bring you significant economic benefits.
The concept of central hot water system is simply that a water heater can provide hot water at any time. It refers to the centralized production of hot water, and large-capacity hot water can supply domestic hot water at the same time. It is especially suitable for large rooms, duplex houses, apartments and villas with two or more bathrooms. To provide 24-hour sufficient constant-temperature hot water, the current market-dominant rapid water heater is impossible. "Central hot water system" is actually a small independent hot water heating system, which can ensure that a water heater can meet the demand of multi-point, simultaneous and large amount of water.
? Advantages of central hot water system
? 1, 24-hour instant hot water supply, very convenient to use.
? 2. Realize simultaneous water supply and super-large flow by multiple heads.
? 3. It has the characteristics of constant temperature and durability.
The transmission mode of fresh air is replacement, not the internal circulation principle of air conditioning gas and the bad practice of mixing old and new gases. Outdoor fresh air will be automatically sucked into the room through negative pressure, and it will be automatically dedusted and filtered when it enters the room through the fresh air outlet installed in the bedroom, living room or living room window. At the same time, the corresponding indoor pipes are connected to the exhaust ports in several functional rooms, and the formed circulation system will take away the indoor exhaust gas and concentrate it on the exhaust ports to "exhale", and the exhausted exhaust gas will not be recycled, so that the old and new air styles will circulate well. Moreover, considering the saving and reuse of energy, the exhausted air is heat recovered, and the recovery rate reaches over 80%, which is used as new energy.
? Advantages of central fresh air system
? 1, the noise of PM2.5 puts the real big environmental pollution in front of us. In the case that the big environment can't be solved for a while, the only thing we can change is the indoor space where we spend about 80% of our time every day. At present, fresh air system is an excellent method to effectively eliminate air pollution such as formaldehyde emission and ammonia pollution in home decoration for about 15 years. The fresh air system in the home is uninterrupted 24 hours a day for 365 days, creating a constant oxygen living environment for the family and bidding farewell to the humid and sultry Huangmei days.
? 2. efficient ventilation: introduce outdoor fresh air, filter it to every corner of the room, discharge indoor polluted air, and prevent pollution such as PM2.5
? 3. Eliminate pollution: remove indoor decoration (formaldehyde, benzene, etc. ).
? 4. Green energy saving: energy saving control, automatic adjustment, introduction of fresh air to adjust air conditioning energy consumption; Total heat exchange series can achieve energy saving effect through heat recovery, which can save air conditioning energy consumption by 20%.
? The central water purification system first effectively removes chlorine, heavy metals, bacteria, viruses, algae and solid suspended solids from water, and then uses activated carbon to further remove various organic substances, so that the effluent is clear, clean and halogen-free, and can be directly drunk; The system has automatic maintenance function. The central soft water system replaces calcium and magnesium ions in water with natural resin to reduce the hardness of water; Effectively reduce the wear and tear on clothes, protect human skin, and avoid scaling problems such as pipes, sanitary ware and bathroom equipment. The central pure water system adopts reverse osmosis, and after five filtering procedures of precise calculation, the effluent becomes pure water without any impurities and minerals.
? Advantages of central water treatment system
? Central water purification system:
? 1, which can remove chlorine, heavy metals and solid suspended particles. In the water;
? 2, it has sterilization function;
? 3. Activated carbon can remove all kinds of organic substances and can be directly drunk;
? 4. The system has automatic maintenance function.
? Central soft water system:
? 1, replacing calcium and magnesium ions in water with natural resin to reduce the hardness of water;
? 2. Reduce the abrasion of minerals in water on clothes and skin;
? 3. Avoid the generation of scale in pipes, valves, bathroom equipment and household appliances, and prolong the service life;
? 4. Avoid the formation of macula by minerals in sanitary ware and tableware water.
? Central pure water system:
? 1, using reverse osmosis method to accurately calculate the matched five times of filtration;
? 2. The treated water becomes pure water, and the water quality reaches the national bottled water standard.