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 高低温电炉的维修与保养!

一、高低温实验电炉构造
I. Structure of High and Low Temperature Electric Furnace
操作设备的实验人员除准确按操作规程操作,还应该对其构造有所了解。
In addition to operating the equipment accurately according to the operating rules, the experimenters should also have some knowledge of its structure.
高低温湿热实验箱,由箱体、风循环体系、制冷体系、加温体系和控湿体系构成。风循环体系通常选用可调理送风方向的构造。加湿体系有选用锅炉加湿的和外表蒸腾二种。降温、去湿体系选用空调工况制冷构造。加热体系选用电热鳍片加热和电炉丝直接加热二种构造。温湿度测验办法选用干湿球测验办法,也有用湿度传感器直接测量办法。操控和显现操作界面选用温湿度分隔独立和温湿度组合操控器等方式。
The high and low temperature humidity and heat test box is composed of the box, the air circulation system, the refrigeration system, the heating system and the humidity control system. The air circulation system usually adopts the structure of adjustable air supply direction. There are two kinds of humidification system: boiler humidification and surface transpiration. The cooling and dehumidification system adopts air conditioning refrigeration structure. The heating system adopts two kinds of structure: electric fin heating and direct heating of electric furnace wire. The method of temperature and humidity test is dry and wet bulb test, and it is also a direct method of humidity sensor measurement. Temperature and humidity are separated independently and temperature and humidity are combined to control and display the operation interface.
二、高低温湿热实验箱常见毛病和扫除办法
2. Common faults and cleaning methods of high and low temperature humidity and heat test box
1.在做高温实验中,如温度改变达不到实验温度值时,能够查看电器体系,逐个扫除毛病。如温度升得很慢,就要查看风循环体系,看一下风循环的调理挡板是不是敞开正常,反之,就查看风循环的电机作业是不是正常。如温度过冲厉害那么就需要整定PID的设置参数。假如温度直接上升,过温维护,那么,操控器出毛病,须替换操控外表。
1. In the high temperature experiment, if the temperature change can not reach the experimental temperature value, we can check the electrical system and remove the faults one by one. If the temperature rises very slowly, we should check the wind cycle system, see if the conditioning baffle of the wind cycle is open normally, and vice versa, check whether the motor operation of the wind cycle is normal. If the temperature is too high, the setting parameters of PID need to be adjusted. If the temperature rises directly and the overtemperature is maintained, then the controller is out of order and the control appearance must be replaced.
2.在做低温实验中达不到实验的方针,那你就要观察温度的改变,是温度降的很慢,仍是温度到必定值后温度有回升的趋势,前者就要查看一下,做低温实验前是不是将作业室烘干,使作业室坚持枯燥后再将实验样品放入作业室内再做实验,作业室内的实验样品是不是放置的过多,使作业室内的风不能充沛循环,在扫除上述缘由后,就要思考是不是是制冷体系中的毛病了,这样就要请厂家的专业人员进行修理。后者的表象是设备的运用环境欠好所造成的,设备放置的环境温度,放置的位置(箱体后与墙的间隔)要满足要求(在设备操作运用说明中都有规定)。

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2. If you can't reach the principle of experiment in the low temperature experiment, then you should observe the change of temperature. It's a very slow drop in temperature. It's still a trend that the temperature will rise again after the temperature reaches a certain value. The former should check whether drying the working room before doing the low temperature experiment can make the working room insist on drying and then putting the experimental sample into the working room to do the experiment. The experimental sample in the working room is: It's not that there are too many places, so that the wind in the operating room can't circulate adequately. After removing the above reasons, we should think about whether there is a problem in the refrigeration system, so we need to ask the professionals of the manufacturer to repair it. The latter is due to the poor operating environment of the equipment. The environmental temperature and location of the equipment (the distance between the back of the box and the wall) should meet the requirements (which are stipulated in the operation instructions of the equipment).
3.在做湿热实验中,呈现实践湿度会到达100%或许实践湿度与方针湿度相差很大,数值低得许多。前者的表象:可能是湿球传感器上的纱布枯燥导致,那就要查看湿球传感器的水槽中是不是缺水,水槽中的水位是由一水位操控器自动操控的,查水位操控器供水体系是不是供水正常,水位操控器作业是不是正常。另一种可能即是湿球纱布因运用时间长,或供水水质纯洁度的缘由,会使纱布变硬,使纱布无法吸收水份而枯燥,只要替换或清洁纱布即可扫除以上表象。后者的表象主要是加湿体系不作业,查看加湿体系的供水体系,供水体系内是不是有一定的水量,操控加湿锅炉水位的水位操控是不是正常,加湿锅炉内的水位是不是正常。如以上一切都正常,那就要查看电器操控体系,这要请专业修理人员进行修理。
3. In the humidity and heat experiment, the practical humidity will reach 100%, maybe the practical humidity is quite different from the policy humidity, and the value is much lower. The former may be caused by the dryness of gauze on the wet-bulb sensor. It is necessary to check whether there is water shortage in the wet-bulb sensor tank. The water level in the tank is automatically controlled by a water level controller. It is also necessary to check whether the water supply system of the water level controller is normal and whether the operation of the water level controller is normal. Another possibility is that wet bulb gauze can harden the gauze due to its long use time or the purity of water supply, which makes the gauze dry and unable to absorb moisture. The above appearance can be swept away by replacing or cleaning the gauze. The latter mainly shows that the humidification system does not work, check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, whether the water level control of the humidification boiler is normal or not, and whether the water level in the humidification boiler is normal. If all the above is normal, you should check the electrical control system, which requires professional repairmen to repair.
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