The faults frequently encountered in the operation of asphalt insulation pumps are as follows: First, the asphalt insulation pump does not discharge oil or discharge less oil. 1. The direction of rotation is incorrect; 2. The valve on the inlet and outlet pipe is not open; 3. Air leakage in each joint surface of the oil suction pipe; 4. The suction pipe is not immersed in the oil; 5. Inhalation height exceeds the rule value; 6. The pump enters and exits the pipeline and condenses the external medium such as filter and cutting; 7. The temperature of the liquid is low and the viscosity of the medium is increased. Second, the abnormal vibration and noise of the asphalt insulation pump: 1. The pump and the motor device have different axes; 2. Inhalation of the intubation or filter infarction or media condensation; 3. The portion of the suction pipe whose diameter is smaller than the regular diameter or has a variable diameter on the oil suction pipe; 4. Air leakage into the oil pipeline and each joint surface; 5. The base unit of the pump is not stable. Third, asphalt insulation pump motor power overload reasons: 1. The practice of the pump, the pressure exceeds the rule value; 2. The hard particles are stuck in the pump; 3. The discharge valve is closed or opened in place; 4. The liquid temperature is low and the viscosity is increased; 5. Gears and bearing sleeves are severely worn or killed.
The generic name of VTM Virus Sampling Tube is a single-use virus sampling tube, which is generally used for the detection and sampling of infectious pathogenic microorganisms in disease control departments and clinical departments. It is suitable for detection and sampling of influenza viruses (including general influenza, highly pathogenic viruses, H1N1 influenza virus, etc.), hand, foot and mouth virus, new coronavirus, measles and rubella and other types of viruses. VTM virus sampling tube can also be used for detection and sampling of Mycoplasma, Chlamydia and Ureaplasma urealyticum. Biomed Vtm Kit,Vtm Test Kit,Saliva Collection Tube,Virus Sample Collection Tube Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com
The virus and related samples in the VTM virus sampling tube should be stored and transported within 48 hours in a refrigerated state (2-8°C). Viruses and related samples can be stored for a long time in -80℃ environment or liquid nitrogen environment. The virus can maintain the activity of the virus in a lower temperature range, reduce the speed of virus decomposition, and improve the positive rate of virus isolation.
The VTM virus sampling tube is generally equipped with a disposable flocking swab. From the appearance point of view, the flocking swab is white and soft. Using this soft brush during the sampling process will make the user feel no foreign body, and it is suitable for different Partial sampling person. Moreover, the flocking swab is designed with a breaking point that conforms to the length of the sampling tube and the natural orifice of the human body, which is not only convenient for sampling but also convenient for transportation of the specimen.