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introduction： one、Product introduction JSDSeries self-cleaning filter is an advanced、Automatic filter for easy operation。It is driven by an electric motor and an automatic cleaning device，Use the systems own pressure and water source to clean the filter，Realize continuity、Automatic filtering operation。Automatic cleaning mode Brush type、Sucking scan、Backwash type and diversion type。This series of products has a simple structure、Easy to operate、Low resistance、Long service life，High degree of automation，Remote control is possible，Low cleaning water and other characteristics，Widely used in metallurgy、Chemical engineering、petroleum、papermaking、medicine、mining、electricity
2015-02-20 Reading quantity 2787
introduction：1、introduction The annual electricity consumption of Daqing Petroleum Administration water supply company accounts for about the total cost of water supply30around，Among them, the electricity cost of water transmission and distribution is about the total electricity cost70around，therefore，How to adjust the daily operation of the external pump，The power consumption per ton of water for water transmission and distribution is kept within a relatively economical and reasonable range，It is the focus of energy saving work。We are always actively exploring，Study carefully，Take effective measures to solve this problem。 2、Presentation of problem Longhu bubble water intake plant is located in the north shore of Longhu bubble，Daily water intake capacity is50Million cubic meters/day。At design time，Considering medium - and long-term planning and
2015-02-20 Reading quantity 2883
introduction：Non-contact dynamic seal with thread to stop liquid leakage，Also known as thread seal（See picture[Spiral seal diagram]）。The thread is usually machined on the rotating shaft of the sealing part，The fluid that leaks during operation fills the thread and the space contained in the housing，form“Liquid nut”。The direction of the thread on the shaft makes“Liquid nut”Axial motion occurs when the shaft rotates，The liquid is constantly returned to the high pressure end。Spiral seal is suitable for liquids with high viscosity、Small pressure difference and medium speed occasions。Basically not limited by the temperature of the liquid。 Li Keyong
2015-02-20 Reading quantity 2792
introduction：The temperature of barrel and head are the main factors affecting the extrusion process of WPC。The temperature of the barrel mainly has a decisive influence on the plasticizing effect of the composite。The temperature of the head has an important effect on extrusion。 With the increase of barrel temperature,The apparent viscosity of the melt of the composite system decreased。For extrusion processing of materials，Increasing the temperature helps to increase the fluidity，The first1The group experiment set the temperature of the extruder to a higher level，But rising temperatures cause the wood fibers to scorch,The viscosity is too low to produce sufficient head pressure，The high temperature of the extruder reduces the viscosity of the material，anticoolant
2015-02-20 Reading quantity 2783
introduction：Through the domestic part of the design institute、Research done by enterprises，Most business pairsCAPPThe application of the system is not optimistic。Enterprise applicationCAPPThe most representative cases of the system are as follows： 1.The process design of most enterprises still adopts manual design，CAPPThe application is still blank。Enterprises in more remote areas，Especially those small and medium-sized enterprises，Not onlyCAPPThe application is a blank，The state of computer use is also worrying。 2.Some businesses in computer technology andCADAfter the application is more popular，Process design becomes the weak link of enterprises。Some enterprises
2015-02-20 Reading quantity 2883
introduction：Principle and type of reducer The reducer refers to an independent closed transmission device between the original motor and the working machine，Used to reduce the speed and increase the torque accordingly。In addition，On some occasions，There are also devices used as speed increases，And called speeder。 There are many kinds of retarders，Here we are talking only about being driven by gears、Worm drive and the reducer composed of them。If it is divided according to transmission and structural characteristics，There are the following five kinds of reducers： 1、Gear reducer The main cylindrical gear reducer、Bevel gear Retarder and cone-Cylindrical gear reducer。 2、Worm reducer The main cylindrical worm reducer、ring
2015-02-20 Reading quantity 2780
introduction：1Application of high and new technology in textile testing 1.1Application of infrared spectroscopy to textile fiber identification Now used in textile fiber identification of infrared spectrometer——Fourier transform infrared spectrometer is made using the dispersion principle of light。The identification principle is when the incident light after passing through the object passes through the prism、A monochromator such as a grating disperses light waves，The composite light is divided into monochromatic light，It is arranged on the slit plane in wavelength order and its signal is accepted by the detector，The intensity of monochromatic light was measured in turn，The absorption spectrogram of the sample is obtained。Previously used infrared spectrometers had only a very narrow band of light falling at each moment of scanning
2015-02-20 Reading quantity 2882
introduction：It can withstand both radial and axial loads，Higher speed，Larger contact Angle，The higher the axial carrying capacity。 Single row bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]It can only withstand the axial load in one direction，Under radial load，Will cause additional axial force。And can only limit the shaft or casing in one direction
2015-02-20 Reading quantity 1665
introduction：Mold material is the foundation of mold industry，However, even the new mold materials are still difficult to meet the requirements of higher comprehensive performance of the mold，Surface engineering technology can make up for the shortage of mold materials to some extent。There is a wide range of surface engineering techniques that can be used in mold manufacturing，Including traditional surface hardening techniques、Thermal diffusion technology、Surfacing welding technology and electroplating hard chromium technology，Also include near20Laser surface strengthening technology developed rapidly in recent years、Physical vapor deposition technique、Chemical vapor deposition technique、Ion implantation technique、Thermal spraying technology、Hot spray welding technology、Composite plating technique、Composite brush plating technology and electroless plating technology。while
2015-02-20 Reading quantity 2820
introduction： Flat thrust bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The main axial load is borne in the assembly，Its wide application。Although the thrust bearing installation operation is relatively simple，However, there are still many errors in actual maintenance，That is, the tight and loose rings of the bearing are installed incorrectly，The result is that the bearing loses its function，The journal wears out quickly。tight
2015-02-20 Reading quantity 1530
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