Vacuum atmosphere furnace machine

评论

发表评论

此博客中的热门博文

Reasons and Solutions for Fragile Belt of Roots Blower

图片
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...
阅读全文

Cautions for Compressed Air of Water Ring Vacuum Pump

图片
Below is a brief introduction of the water-ring vacuum pump compressed air matters needing attention, hoping to help users, but also let the friends who want water-ring vacuum pump get some common understanding, together with a simple understanding: When using vacuum pump as compressed air, water-ring vacuum pump can be selected. When choosing water-ring vacuum pump as compressed air, attention should be paid to the correct selection. If the selection is improper, the motor of the water ring pump will be overloaded and burned down. If the water ring pump is used as compressed air, because the external air is continuously sucked into the vacuum pump and can not be discharged in time after compression, the water ring pump will be blocked by discharging so that the internal pressure of the water ring pump will be too large, resulting in motor overload. In order to effectively prevent this kind of situation, it is necessary to select the corresponding standard electric motor...
阅读全文

Causes of Cavitation in Screw Vacuum Pump

图片
Cavitation often occurs in the use of screw vacuum pump, which is a high noise and destructive phenomenon often occurring in hydraulic machinery. The occurrence of this phenomenon will not only break the vacuum pump, but also cause impeller perforation to cause serious damage to the equipment. The mechanism of cavitation is due to the action of liquid dynamics. When the local pressure of moving liquid drops to the vaporization pressure at this temperature, the liquid begins to vaporize and forms bubbles. The bubbles are filled with liquid vapor and a small amount of gas dissolved in the liquid. When the bubbles reach the region where the static pressure exceeds the critical pressure along with the moving liquid, the steam in the bubbles suddenly condenses and the bubbles burst. Because the pressure in the bubbles is always below or near the critical value, and the pressure of the outside liquid is relatively large, when the bubbles burst, the surrounding liquid rushes to...
阅读全文