Temperature uniformity definition of electric blast drying oven
The electric heating drying box of the electric blast drying oven is equipped with temperature uniformity parameters: the natural convection drying oven is the upper limit of the working temperature multiplied by 3%, and the forced convection drying oven is the upper limit of the working temperature multiplied by 2.5%. However, the electric vacuum drying oven does not have a temperature uniformity parameter. Why?
It is also meaningless to set this indicator under vacuum. The amount of thermal radiation is inversely proportional to the square of the distance. For the same object, the radiant heat received at 20 cm from the heated wall is only 1/4 of 10 cm from the heated wall. big difference. This phenomenon is warm when the sun is shining in the winter, and the sun is not warm. It is a truth that the sun is not cold. Because the vacuum drying oven is difficult to make the radiant heat of each point in the three-dimensional space of the studio uniform and lacks an authoritative evaluation method, it may be that the temperature uniformity parameter is not included in the standard of the electric vacuum drying oven. s reason. There is almost no possibility of relying on the movement of gas molecules in the vacuum oven to make the temperature of the studio uniform. Therefore, from the conceptual point of view, we can no longer use the temperature uniformity definition specified in the usual electric blast drying oven to the vacuum drying oven.
Electric blast drying oven The equipment is of horizontal vertical type. The working material is made of high quality stainless steel. There is a sample shelf in the working room. The chamber is filled with mineral wool to make insulation, and the fan will be heated. The air is circulated through the air duct to estimate that the constant temperature of the working chamber is relatively uniform.
Electric blast drying oven maintenance control system
The electric blast drying oven is suitable for drying, baking and sterilizing non-volatile materials in industrial and mining enterprises, schools, medical and scientific research units. The oven controller uses an intelligent temperature controller. With timing function, temperature recovery time is fast.
Teach you how to maintain the electric blast drying oven control system as follows:
1. Regularly check whether the silver contact of the temperature regulator is hairy or uneven. If it is, use the fine gauze to level the contact and then use it, and clean it regularly with a cleaning cloth to make it in good contact (be sure to cut off the power supply) );
2. Do not hit the metal pipe of the indoor temperature regulator to avoid affecting the sensitivity;
3, electric blast drying oven control instrument should be regularly repaired, because the electric contactor is frequently turned on and off, regular maintenance, in order to prevent the contact burnt and bite, can not cut off the electric heating power, the temperature inside the furnace will burn the product.
4. Check the temperature control instrument regularly for accuracy. If it is not accurate, please adjust the static compensation or sensor correction value of the thermostat or replace it.
5. Sudden power failure, the power switch and heating switch should be turned off to prevent automatic start when incoming calls. Electric heating blast drying box maintenance part of the electric blast drying oven for scientific research institutions and laboratories, industrial and mining enterprises for temperature testing, hardening, drying, baking and disinfection.
How to maintain the electric blast drying oven box part is as follows:
1. Wipe the surface of the cabinet with a soft cloth regularly, keep it clean and hygienic, and prevent the appearance of the paint on the surface.
2. The working room should also be wiped frequently to prevent corrosive substances from adhering to the inner liner and affecting the service life.
3. Regularly check whether the vents are blocked, and regularly clean up the dust to ensure smooth air supply.
4. Regularly check whether the lock of the electric blast drying box is tight. If it is loose, it needs to be replaced to ensure the sealing.
5. Check regularly whether the fan is running normally, whether there is abnormal sound, if the machine is turned off immediately.
6. Check the heating pipe of the blast drying oven regularly for damage and whether the line is aging.
7. After baking the article at high temperature, the main switch cannot be turned off immediately. The fan switch should be turned on to allow the heat to be dissipated before shutting down, so as to avoid partial deformation of the oven.
In fact, both small art and expensive precision instruments require regular maintenance to extend life.
Shangyu Xingxing Instrument Equipment Co., Ltd. is located in Daoxu Town, Shangyu District, Shaoxing City, Zhejiang Province. It is an enterprise integrating production, product research and development, processing and trade. The company's main products: drying box series, incubator series, laboratory muffle furnace series, distilled water series, as well as clean workbench, air shower, fume hood, biological safety cabinet and other complete purification equipment.
The company has a strong technical research and development team, a strong after-sales guarantee service system, is the linger of the Chinese laboratory complete sets of equipment manufacturers, welcome customers to buy.
Our organic vegetable powder mainly used dehydration technology. Dehydration vegetable powder remained most fiber and taste of fresh vegetables, so they are suitable to be added in sauce, stuff, pudding, yogurt and dessert. Some vegetable powder could be applied as pigment like red beet root powder. Some could be mixed with other super green powders to make health formula, kale powder and broccoli powder are always good choice for customers.
Vegetable Powder,Red Beet Root Powder,Broccoli Powder,Organic Vegetable Powder
YT(Xi'an) Biochem Co., Ltd. , https://www.ytherblifes.com