Leak detection using helium mass spectrometer in vacuum furnace?

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Reasons for Axis Breakage of Water Ring Vacuum Pump and Corresponding Measures

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Axis Breakage of Water Ring Vacuum Pump: After 2 years of use, water ring vacuum pump will present the phenomenon of excessive noise, excessive starting current, remarkable decrease in pumping capacity and vacuum degree. It is found that the scale inside the pump body is severe after the technical staff of our company disassembled and inspected. The reason for scaling is that the water contains calcium, magnesium and other carbonate substances. When the pump is heated and heated, its solubility decreases, and molecule-bound deposits form scales. What measures should be adopted to avoid axle breakage? Water ring vacuum pump Through the analysis of the causes of shaft breakage of water ring pump, the following corresponding measures are adopted. 1. Revamping the original process equipment to reduce the content of impurities in acetylene gas trap: At the same time, the large well water of water ring vacuum pump is changed into circulating water to reduce the hardness of wat...
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Variable pump pressure adjustment steps

　　1) Adjust the pressure of unloading valve DA10, relief valve DB10 or DB20 to the minimum. 　　 2) Check in the slurry inlet valve and close the slurry outlet valve to the minimum, that is, the slurry flow rate of the pump is small at this time. 　　 3) Start the motor, slowly adjust the relief valve DB10 or DB20 to adjust the mud pressure to be about 0.1Mpa-0.2Mpa less than the required pressure. 　　 4) Slowly adjust the unloading valve DA10 until the unloading valve has pressure (that is, the pressure gauge corresponding to the unloading valve shows less than 0Mpa). 　　 5) If the state cannot be reached, adjust the unloading valve and the relief valve according to the above steps 3 and 4 until this state. 　　 6) After adjusting the unloading valve, tighten the nut. (Note: The pressure of the unloading valve should be zero at this time, if it is not zero, then slightly lower the pressure of the unloading valve, and the pressure will only be displayed when it reaches zero). 　　 ...
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Reasons and Solutions for Fragile Belt of Roots Blower

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1. Reasons for easily broken belt of Roots blower: 1. First of all, consider the high speed and high temperature of Roots blower. 2. The distance between the head and motor of Roots blower is too large and the belt is tight. 3. The belt does not match the V groove of the pulley, so it can not withstand the load fracture after wearing. 4. Active pulley and driven pulley are not parallel, resulting in serious friction between belt and groove on one side, and can not bear load fracture after wear. 5. Heavy load, long-term overload operation of belt is easy to break. 6. Roots fan nose and motor pulley are not concentric, different axes. 7. Belt quality problems. 2. Measures to prevent the belt of Roots blower from breaking. 1. Roots blower must start without load before running. After starting, it should be loaded. After running, it can generally avoid triangular belt breaking. 2. The pulley between the motor and the fan should be parallel, which is a key point. If not para...
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