Forum Posts

wyb2020 1777777777
Jul 23, 2021
In General Discussions
One of the biggest advantages of a PBX VoIP system is the advanced features you can set up at your hotel. Check in and check out calls can be automated, guests can set up wake-up calls automatically, and room status and call billing can be run through your computers systems quickly and easily. The best thing about a VoIP system isn’t the features it offers now — it’s the features it can offer in the future. Since a VoIP system isn’t limited by the number of employees or physical phone lines you offer in your hotel, the possibilities for future expansion are practically unlimited. You can add and remove lines as you want or assign new lines to facilities like the bar, restaurant, conference centers, and event spaces. The world has gone digital, and hoteliers that don’t keep up will be left behind. Flexible Hotel Phone Systems From New Rock IP-PBX VoIP Gateway
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wyb2020 1777777777
Jan 05, 2021
In General Discussions
Roots water ring vacuum unit Roots water ring vacuum unit is composed of roots pump as main pump and water ring pump as front pump in series. It can be understood as two main points: water ring pump and roots pump.Both roots pump and roots vacuum unit have a number of utility model patents, for example, the series Roots vacuum unit that can be started at the same time solves the shortcomings of the start-up mode of Roots vacuum unit in the prior art, such as long time consuming, low efficiency and large energy consumption, mainly including the front vacuum pump and roots vacuum pump driven by the motor of Roots vacuum pump An exhaust port is arranged on the roots vacuum pump, an air suction port is arranged on the roots vacuum pump, a pneumatic ball valve is arranged between the front vacuum pump and the roots vacuum pump, and the motor, the pneumatic ball valve and the differential pressure detection device of the front vacuum pump are all controlled by the control cabinet. The beneficial effect of the utility model is: on the premise of ensuring that the motor of the roots vacuum pump is not overloaded, the pumping speed is increased by controlling the pressure difference between the inlet and outlet of the roots vacuum pump, so as to shorten the starting time of the vacuum unit.CL Sereis Cone Liquid Ring Vacuum PumpRoots BlowersRoots Vacuum Pump
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wyb2020 1777777777
Dec 24, 2020
In General Discussions
Causes of crankshaft wear of Roots vacuum unit After using roots vacuum unit for a period of time, the problem of crankshaft wear often occurs. The wear is uneven. The radial wear of main journal and connecting rod journal is mainly elliptical, while the axial wear of crankshaft journal is mainly conical. So, how are these crankshaft wear caused? 1. Because the oil passage leading to the connecting rod journal is inclined, under the action of centrifugal force, the mechanical impurities in the lubricating oil accumulate on one side of the connecting rod journal under the action of centrifugal force, which accelerates the wear of the Journal on this side and makes the wear of the connecting rod journal cone-shaped. 2. Because of the bending of connecting rod, the center line of cylinder is not perpendicular to the center line of crankshaft, the axial force on the journal is uneven and the wear deflection is caused. 3. The elliptical wear of the journal is caused by the uneven distribution of the force acting on the journal along the circumference. When roots vacuum unit is working, the combined force on the connecting rod journal always acts on the inner side of the connecting rod journal, and the direction is outward along the radius of the crankshaft, resulting in wear on the inner side of the connecting rod journal. CL Sereis Cone Liquid Ring Vacuum Pump Roots Blowers Roots Vacuum Pump
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wyb2020 1777777777
Dec 22, 2020
In General Discussions
Features of high pressure reciprocating pump: 1. The discharge pressure of high-pressure reciprocating pump has nothing to do with structure size and speed. The discharge pressure depends only on the power, strength and sealing function of the pump itself. The flow rate of motor reciprocating pump has nothing to do with the discharge pressure, but when the pressure is high, the flow rate of the pump will change slightly due to the gas dissolved in the liquid and the leakage of valve and packing. Therefore, the reciprocating pump can not adjust the flow by closing the outlet valve. When the discharge valve is closed, the fluctuation of discharge pressure will lead to motor overload or pump damage.Related products:Vacuum Pump Heat Treatment Guide,Heat Treatment EquipmentLiquid Ring Vacuum Pump
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