Centrifugal filter press pump centrifugal compressor, you know how much do you know?

Centrifugal filter press is used in the filter on the water pump, filter press, as everybody knows, is the material slowly filter shaping, this process needs to press filter constant feed pump. For centrifugal compressor is what, what are the performance parameters, and what is its meaning? 1, what are the main performance parameters of the centrifugal compressor, the main performance parameters of the centrifugal compressor are: flow rate, outlet pressure and compression ratio, power, efficiency, speed, energy and the first class. Equipment is the main performance parameters of the characterization of structure characteristics, working capacity and working environment aspects such as basic data, is one of the important guiding users to choose and buy equipment, planning materials. 2, what are the characteristics of the centrifugal compressor? Centrifugal compressor is a kind of turbine compressor, with large processing capacity, small volume, simple structure, stable running, convenient maintenance and is not polluted by oil, gas can be driven by the form of more features. 3, the working principle of the centrifugal compressor? In general, the main goal is to increase unit volume of gas pressure increase in the number of gas molecules, which is to shorten the distance between the gas molecules and molecules, in order to achieve this goal, adopt the method of gas dynamics, it is using mechanical work components ( High-speed rotating impeller) , make work on gas, make the gas under the action of the centrifugal stress, has been greatly increase the kinetic energy at the same time, then in the divergent flow passage this portion of the kinetic energy into static pressure can again, and to further improve the gas pressure, this is the principle of centrifugal compressor. 4, what is the meaning of the compression ratio? What we call the compression ratio is refers to the compressor exhaust gas pressure and the ratio of the inlet pressure, so sometimes also known as the pressure ratio and compression ratio. 5, what is the meaning of efficiency? Efficiency is the characterization of the centrifugal compressor to gas energy utilization degree, utilization degree is higher, the higher the efficiency of the compressor. Due to the compressed gas polytropic compression, adiabatic compression and isothermal compression process, therefore, the efficiency of the compressor is divided into the polytropic efficiency, adiabatic and isothermal efficiency. 6, lubricating oil system is made up of what parts? Lubricating oil system by the lubricating oil tank station, high, intermediate connecting pipe and control valves and instrumentation. Lubricating oil station consists of oil tank, oil water pump, oil cooler, oil filter, pressure regulating valve, all kinds of testing instrument and valve and pipe line. 7, labyrinth seal sealing mechanism is what? By the potential energy ( Pressure) Converts kinetic energy ( Flow speed) The kinetic energy in the form of a vortex lift again. Eight, the action of thrust bearing? The role of the thrust bearing has two: bear the thrust of the rotor, and the rotor axial positioning. Thrust bearing the balancing piston is not part of the rotor and thrust and the coupling of thrust, the thrust mainly depends on the size of the steam turbine load. In addition, the thrust bearing also fixed rotor axial position relative to the cylinder. 9, what kind of sealing device in the characteristics of the structure? Selection principle is what? According to the working temperature and pressure of the compressor and gas medium with and without damage conditions, such as sealing adopt different structure forms, and known it for sealing device. Sealing device in the characteristics of the structure: suction type, the labyrinth, the floating ring type, such as mechanical and spiral five kinds of forms. General toxic or harmful, flammable and explosive gas, should choose floating ring, mechanical, spiral and suction type sealing device; Nonpoisonous and harmless, if gas booster is lower, the choice of labyrinth seal device. The role of 10, seal? The operation of the centrifugal compressor in order to get a good effect, must keep a certain gap between rotor and stator, in order to avoid friction, wear and impact and damage in the accident. Due to the existence of the gap at the same time, will naturally cause interstage and leakage of the shaft end phenomenon, leakage not only reduces the efficiency of the compressor, and caused the pollution of the environment, or even an explosion accident. So the leakage phenomenon is not allowed. Seal is to have proper clearance between the rotor and stator, avoid compressor interstage effective measures of leakage and the leakage of the shaft end. 11, what is the gas seal? Gas seal is a kind of lubricant non-contact sealing in gas medium, by the clever design of the sealing element structure, and its performance of the play, can reduce leakage to low level. Its characteristics and sealing principle is: the ❶ seal seat and rotor with a relatively fixed in the seal seat ring relative on the face of Primary sealing surface) Design the sealing and sealing dam. The size of the sealing piece of different shapes. When the rotor high-speed rotation, the gas to produce a pressure during injection, thus pushes away the a ring, the formation of gas lubrication, reduce a sealing surface wear, and can prevent leakage of gas medium to low limit, sealing dam used to stop when the gas leakage in the organization. ❷ the sealing needs a stable sealing gas source, it can be a medium gas, also can be an inert gas, no matter use which kinds of gas, must be filtered, known as a clean gas. 12, how to select the dry gas seal? For neither allow process gas leak into the atmosphere, and do not allow the resistance sealing gas into the machine, using the inlet in the middle of the tandem dry gas seal. Ordinary tandem dry gas seal is suitable for the working condition of a small amount of process gas leakage to the atmosphere, the atmospheric level sealing as insurance sealing side.
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