Energy consumption is a very important problem in drying. If it can improve the energy utilization of the drying process, it can save a lot of energy every year. Therefore, the energy saving problem of the drying process has been paid attention to. At present, the heat pump drying mainly recovers the latent heat in the dry exhaust gas for the drying process. Heat pump drying technology is a new type of energy-saving drying technology developed in this context. It uses a heat pump to remove the moisture of the humid air coming out of the drying chamber, and after obtaining a large amount of latent heat, reheats the dehumidified air.
Air energy heat pump drying, the next 100 billion market vents?
Figure | Tobacco drying system schematic diagram 1, 2 compressor; 3 condenser; 4, 5 throttle valve; 6 evaporator; 8 fan; 9 air supply port; 10 barn; 11 air outlet; 12 air treatment room; The fresh air outlet drying device consists of two systems: heat pump and drying. A heat pump is a circulation system composed of a compressor, a condenser, a throttle valve, and an evaporator. The heat pump compressor works and uses an evaporator to recover low grade heat energy for use in the condenser. The heat pump working medium absorbs part of the residual heat in the hot air discharged from the drying chamber in the evaporator to make it vaporize and absorb heat. After being compressed by the compressor, it enters the condenser to condense and transfers the heat to the air. The hot air from the condenser enters the drying chamber to dry the wet material. The humid air from the drying chamber passes part of the sensible heat and latent heat to the working medium through the evaporator, and the temperature of the humid air drops to the dew point to precipitate the condensed water to achieve the purpose of dehumidification.
The advantages of heat pump drying are obvious
Compared to conventional drying, heat pump drying has the following advantages and disadvantages:
1. Save energy. The heat pump drying device utilizes the heat released by the humid air through the evaporator to dry.
2. Improve product quality. The sensing and control technology is combined for heat pump drying. By accurately adjusting the evaporator temperature, condenser temperature and air flow speed, the temperature, humidity and drying speed of the drying medium can be adjusted, and the drying quality can be controlled in real time.
3. Environmentally friendly. For the fully enclosed heat pump drying device, the air is not discharged outward during the drying process, and no need to replenish fresh air, which can avoid the pollution of the exhaust gas to the atmosphere, and can also avoid material pollution caused by the ventilation. It is especially suitable for drying food, medicine and other materials.
4, a wide range of drying. The heat pump drying device generally has a drying medium temperature range of -20 to 100 ° C and a relative humidity range of 15% to 80%, and is suitable for drying various types of materials.
5. Compared with other drying equipment (such as vacuum drying), the heat pump drying device has the advantages of high energy utilization rate and low operating cost. It can be seen that the heat pump is applied to drying, has the advantages of energy saving, improving product quality and reducing pollution, but also has many disadvantages.
6. Strengthening the drying process. Although the drying temperature of the heat pump drying is generally low, it is advantageous to maintain the product quality, but the drying rate is lowered when the drying temperature is low, resulting in a long drying cycle.
The above discussion shows that the heat pump drying has the advantages of less energy consumption, less environmental pollution, high drying quality and wide application range. Therefore, the heat pump drying device is an ideal drying machine for heat sensitive materials and the like.
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Material drying quantity and basic properties are the basis of system design
The main body of the heat pump drying is the material, so the understanding of this subject must be detailed. The material name, volume, picture, daily average output, maximum and minimum output are the important basis for the construction of the post-drying house. The size of the drying room and the material rack The choice of the design and the design of the air duct are all based on these data. If you only know the average daily output, follow the data to design the drying room, but when the drying demand is the maximum daily output, then the drying room can not meet the customer's daily drying demand, only by increasing the drying The number of times to solve, then this will bring losses to customers.
Wet material weight, dry material weight, dry-wet ratio, etc. are necessary factors for host selection and system design. Only by knowing these data can we calculate the amount of dewatering for drying, so that we can give me scientific and reasonable results. The solution is to improve the drying quality and reduce the running cost. Sometimes the customer will provide this information, but in many cases, the customer needs to test or consult an experienced industry person.
There are business opportunities around, and you don't know! Come and come, take you into the heat pump drying 100 billion market
Drying process requirements are the guarantee of finished product quality
Drying room construction and system design and installation are the basis of heat pump drying, and the key lies in the drying process, because many of the drying materials themselves have greater value, such as Chinese herbal medicines, wood, etc. The failure to cause drying has not only caused huge losses to customers, but even caused you to suffer heavy losses.
Daishiba is a professional heat pump manufacturer based in China. With over decades of experience in the HVAC industry, Daishiba has become one of the leading brands of quality heating, cooling & hot water system. Our main products include heat pump, air conditioner & thermal equipments.
Daishiba Heating & Refrigeration Equipment Co. Ltd was founded in 2008 in China and well experience in energy-saving products. We have developed whole series of heating system equipments & energy-saving products with 5 series and more than 200 kinds of products in the past years. Our products range is as below:
Daishiba Heating & Refrigeration Equipment Co. Ltd
● Air to water heat pump.
● Water to water heat pump.
● Water to air heat pump.
● Commercial air conditioner.
● Fan coil units.
Besides Chinese market, export business is our main business. So most of our products are coming with international standard, some of our products have obtained international certificate, such as CE, RoHS, SAA certificate and ERP label etc, and our factory execute strictly. We are always insists on the principle of quality first, customer first, and focus on high-quality, competitive cost & fastest services. So far, our products have entered over 50 countries and regions with either brand name Daishiba or OEM brand.
ISO9001:2008
We are always on the look-out to build strategic partnerships in overseas markets and welcome opportunities where we can work in tandem with you and succeed together. OEM & ODM enquires are welcome.
Looking towards the future, Daishiba will build a fresh and quiet living environment and comfortable life for you.
DAISHIBA HEATING & REFRIGERATION EQUIPMENT CO. LTD
Address: Chuangye Nan Road, Songxia Industrial
Park Songgang Town Nanhai District Foshan Guangdong China (mainland)
Email: sussie@daishiba.com.cn
Website: www.daishiba.com.cn
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