Shanghai Haozhuang Instrument specializes in the production and development of LAB laboratory supplies such as low-temperature constant-temperature baths, low-temperature cooling circulation pumps, constant-temperature water baths, constant-temperature oil baths, electric stirrers, constant-temperature water baths, and dedicated to providing you with high-quality low-temperature constant-temperature baths and other experiments Room instruments, welcome to consult and buy!
Shanghai Haozhuang teaches you to deal with the common problems of cryostat, please see the following for details:
1. After more than a year of water circulation, the cooling rate seems to be slower and slower, the more obvious the problem is when the temperature is higher
Water recycling is very simple, but regular maintenance work can not be ignored. There are many seemingly faulty problems that are caused by failure to do regular maintenance. The electrical power of the water cycle and the heat taken by the refrigerant from the load need to be removed from the radiator at the front vent hood. If the front vent hood is full of dust and willow cotton, etc. will hinder the dissipation of these heats, and the cooling effect will be Great discount. Generally speaking, the decrease in cooling capacity under normal use conditions is caused by poor ventilation and heat dissipation or high ambient temperature.
2. After several months of use before the water cycle, it was found that the noise is much larger than before, what is the reason
As mentioned earlier, the daily maintenance of the water cycle is also related to this problem. Everyone knows that there are very few impurities in the water. Even if distilled water is added to the water tank, it is impossible to guarantee that there is no impurity at all. For the water cycle, the general temperature is set at 20 ℃, especially adapted to the growth and reproduction of microorganisms. After a long time, these microorganisms will block the filter of the waterway and cause the backwater to be poor, and the pump will have a loud noise. Sometimes these microorganisms are attached to the surface of the heat exchanger, causing the heat transfer effect of the heat exchanger to deteriorate and the cooling capacity to become smaller. Therefore, the daily maintenance work must be done in strict accordance with the requirements in the manual, the inner tank should be cleaned regularly, and the tank should be kept dry for a long time. There seems to be water leakage in the water circulation, and sometimes there will be a few drops on the ground. Is there a leak on the waterway? Generally speaking, during normal use, there will be no leakage on the waterway. When the relative humidity in the air is relatively high and the relative humidity in the air is too large, dew condensation is easy to condense at the water pump, water pipe joints, and external water pipes in the water circulation circuit. After accumulating, it will drip onto the ground. Do n’t worry about it in the waterway Leaking place. If you care about this, turning on the air conditioner to lower the room temperature or dehumidifying can avoid dew.
3. The temperature of -80 ℃ low temperature thermostat can only be reduced to -60 ℃, what is the reason
Please check the cause of the fault and deal with the problem from the following aspects:
The condenser of the low-temperature constant-temperature reaction bath is dirty: it is the place where the low-temperature constant-temperature bath can absorb air. There are many heat dissipation aluminum foils. See if it is dirty. If it is dirty, clean it up and blow it with nitrogen;
Is it too close to the wall? If it moves closer, it will move a little farther, because there is not enough ventilation space, the air cannot circulate normally, and the temperature can not be reduced, and the temperature cannot be lowered;
Is the medium low in concentration: After the medium is used for a period of time, the condensate in the air will get into the medium, and it will thicken at low temperature, and the temperature cannot be reduced if the cooling capacity cannot pass through. If the medium is very thick at low temperature, If it cannot flow normally, or if it freezes, you need to change the medium.
For more solutions to the problem of cryostat, please consult Shanghai Haozhuang Instrument Co., Ltd. A senior engineer will answer your questions!
Manual Coffee Grinder,Coffee Grinder,Manual Grinder,Coffee Bean Grinder
Yongkang Lianyang Industry & Trade Co., Ltd , http://www.lianyangmill.com