shaohai - Industrial purification heat recovery

Air plate heat exchanger for air waste heat recovery

The air-gas plate heat exchanger for air waste heat recovery is made of seawater corrosion-resistant hydrophilic aluminum plate, epoxy resin aluminum plate or stainless steel foil. The heat transfer surface of the heat exchanger is subject to enhanced heat transfer stamping forming treatment. The heat exchanger adopts enhanced stamping undercut technology, which has higher strength, better sealing performance and less than 1% air leakage rate; The air passage is supported by a conductor convex cylinder, and the capacity to withstand the new exhaust pressure difference is 2500 Pa; The normal use temperature of ordinary aluminum foil is not higher than 100 ℃, the temperature resistance of special sealing material can reach 200 ℃, and the temperature resistance of stainless steel material can reach 350 ℃; It can be cleaned directly with tap water or neutral detergent, which is convenient to use and easy to maintain; Provide different plate spacing (2.0mm-10.0mm) and any combination length.
The products are widely used in commercial central air conditioners, industrial purification air conditioners, healthy and green residences, data center heat exchange, 5G base stations, medical purification, wind power heat exchange, large-scale breeding energy-saving ventilation, new energy vehicles, printing machines, coating machines, sizing machines, charging pile heat exchange, printing, food, tobacco, sludge drying and other fields,

Efficient and fast flue gas white elimination box

Efficient and fast flue gas white elimination box, physical way to eliminate industrial white smoke, industrial waste heat recovery
The waste heat and smoke exhaust of boilers and the chimneys of chemical and power industries emit white smoke after desulfurization and other processes, which contains a large amount of low-heat water vapor. During the discharge process, the water vapor in the flue gas condenses into liquid, and the light transmittance of the flue gas drops, resulting in white smoke. If these moisture cannot diffuse in time, it will form acid rain and gypsum rain, which is one of the inducements of haze weather.
Ultra thin heat transfer core is used in the air efficient and fast flue gas whitening machine, which uses outdoor ambient temperature air without additional energy consumption, and the heat transfer process is pollution-free. The equipment has compact design layout, flexible installation and simple operation, which can efficiently and quickly solve the white clean water mist generated in the operation and production of natural gas boilers, drying equipment, food plants, etc. It is mainly used for desulfurization and flue gas whitening in coal-fired and gas-fired boilers, power plants, metallurgy and other industries.
It is widely used in the tail gas utilization of dryers, drying of vegetables, tobacco leaves, medicinal materials, noodles, seafood and other foods, and drying of clothes and sludge. The air energy recovery scheme of printing machine and coating machine is installed in the drying exhaust system. During the exhaust process, the exhaust gas and fresh air pass through the heat exchange core, and the heat of the exhaust gas is used to preheat the fresh air to improve the inlet temperature, so as to achieve the purpose of air waste heat recovery.

Historical source of fresh air system

As early as 1906, when studying air and human health, Mr. Al, an indoor environment scientist at the British Institute of Natural Environment, found that the index of indoor air was very different from the content of air components in the outdoor natural environment. This change in indoor and outdoor air quality had a great impact on human health. He took the lead in proposing that indoor and outdoor air can reach a relatively close degree through effective ventilation, and that air is the first element of human health. After years of research, he invented the method of forced mechanical ventilation to realize the replacement of indoor and outdoor air, and named it fresh air system.

How to ensure proper temperature in mushroom greenhouse?

Mushrooms belong to fungi. Temperature control is very important in the mushroom seed production stage, especially in the mushroom production stage. Good temperature control is conducive to the quality of mushrooms. So how to ensure the appropriate temperature of mushroom production in the mushroom seed production greenhouse?
The actual seasonal ambient temperature obviously does not meet the requirements of mass planting and production, which requires constant temperature and humidity water chiller equipment for temperature cooling, so as to ensure the appropriate temperature for mushroom production, make the mycelium develop healthily and improve the quality of mushrooms. It is cultivated out of season through vegetable greenhouse.
So how does the constant temperature and humidity chiller for mushroom cultivation work? It is divided into the following links.

Dehumidification link:
According to the requirements of mushroom process temperature, when the ambient humidity of the mushroom greenhouse is higher than the set humidity, the dehumidification system is realized by cooling;
Cooling link:
When the temperature sensor detects that the temperature of the mushroom greenhouse is higher than the set temperature, the cooling system starts to work. The indoor unit becomes the evaporator and the outdoor unit becomes the condenser through the conversion of the steering valve.
Heating link:
The indoor unit becomes the evaporator, and the outdoor unit becomes the condenser to start heating.
Humidification:
It is sent to the mushroom greenhouse through the fan to realize the function of humidification.
The constant temperature and humidity chiller can cool, heat, adjust humidity, ventilate the greenhouse, and automatically adjust the temperature. It is a sharp tool for mushroom and other fungus cultivation, with the following characteristics.
At the same time, the constant temperature and humidity unit is equipped with multi-function operation panel, control system fuse, compressor switch button, water pump switch button, electronic temperature controller, various safety protection fault lights, unit start operation indicator light, which is simple to operate and convenient to use. As the heart of the industrial chiller, the high-quality compressor is equipped with a built-in safety protection system, which is low in noise, energy-saving and durable. It has the function of low temperature protection, especially in the cold winter, when the temperature is minus 7 degrees, because the unit is equipped with the function of preventing freezing at the cold water side, when the unit detects that the return water temperature at the mushroom shed side is too low, the host will automatically start to heat the water temperature to a safe temperature.
Constant temperature and humidity units have been widely used in breeding, purification workshops, factories, scientific research, artificial ice rinks and a variety of large buildings or industrial plant equipment. With its advantages of high energy efficiency and good effect, they have been favored by customers at home and abroad.

Heat pipe steam generator used in mine return air waste heat

The ventilation in the mine needs a lot, and the ventilation temperature can basically be maintained for more than 20 years, and the air temperature of the mine return air will increase with the increase of the depth. Therefore, the mine return air contains huge low-temperature heat energy. From the perspective of return air shaft, the temperature of mine return air is much higher than that of inlet air. In addition, the return air volume of the mine is large. Therefore, there is a large amount of low-temperature heat energy in the return air of the mine. This part of heat energy is not used, but directly discharged into the atmosphere, which will cause huge waste of heat energy.
If the mine return air is used as a low temperature heat source, separate heat pipe and gravity technology can be used to convert it into a useful high temperature heat source to meet the anti-freezing effect of the borehole, and the effect is very good. The heat pipe steam generator technology is used in the mine site of the same work in and out of the well. It can be used to recover the residual heat of the return air in the mine and achieve the antifreezing effect of the shaft
The hot air directly transfers heat to the cold air through the evaporation section wall and the condensation section wall of the heat pipe, thus avoiding the heat loss caused by the heat transfer of the ordinary heat exchanger through the third heat exchange medium, and improving the heat exchange efficiency; Since the evaporation part and the condensation part are separated, it is possible to avoid manufacturing long conveying pipes
Compared with the traditional heat pipe heat exchanger, the steam of the separated heat pipe flows in the same direction from the top to the bottom of the liquid film in the condensing section, which avoids the single-tube long portable limit heat pipe heat exchanger. Therefore, under the same heat transfer conditions, the tube with smaller diameter can be selected as the heat transfer tube to ensure the compactness of the device
The cold and hot fluids are completely isolated, and the area of the condensation surface or the evaporation surface can be greatly changed to adjust the heat flux density, so as to adjust the temperature of the heat pipe wall to ensure that it is higher than the low temperature dew point fluid, thus preventing corrosive gases, and the dew point corrosion can ensure the long-term operation of the equipment; The structure design and position arrangement are simple and flexible, and it is easy to realize the mixed distribution of forward and reverse flow. At the same time, multiple condensing sections can be set and used in parallel with them.

Function analysis of heat exchanger core

The heat exchanger core is the major part of air to air ventilation system. When the air is forced to pass through the heat exchanger core from two different air channels, the energy and humidity are transferee! by the plates, so as to save the energy. Outdoor air and exhaust air is separated by thermal conduction plate, avoid cross-contamination,make sure dean outdoor air Base on different air channel they can be divided into cross flow9 counter flow and cross&counter flow; base on material can be divided into sensible and enthalpy heat exchanger core.

heat exchanger core have compact structure, no running parts, strong reliability and long service life.

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Industrial purification heat recovery

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