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1、化工设备机械基础_ppt（Mechanical basis of chemical equipment _ppt）This article is contributed by xiaoniuwfqlPpt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view.Mechanical basis of chemical equipmentGeneral desi
2、gn method of pressure vesselInternal pressure, external pressure (internal pressure, external pressure (middle, low pressure), low pressure)Several kinds of common chemical equipmentHeat exchange equipment, tower equipment, heat exchange equipment, tower equipment, mixing equipmentBibliographyChemic
3、al containers and equipment, more than Guocong ed., Beijing: chemical industry chemical containers and equipment more than Guocong ed., Beijing: Press, 1980 edition, design chemical container, chemical equipment design book series Committee, Shanghai: the design of chemical equipment design chemical
4、 container series: Shanghai Science Committee, Shanghai Technology Press, Shanghai science and Technology Press, 1987 process equipment design, edited by Zheng Jinyang, Beijing: chemical industry process equipment design edited by Zheng Jinyang, Beijing: Press, press, 2005 GB150-98 steel pressure ve
5、ssel , Beijing: Xueyuan press, 1998 steel pressure vessel Beijing: Xueyuan press, GB151-99 steel tubular heat exchangers , Beijing: Xueyuan press, heat exchanger Beijing steel pipe: UIBE Press, 1999IntroductionFirst, the question raised(1) equipment is the basis of the process (two) material is the
6、foundation of the equipmentTwo, curriculum content(1) basic articles - materials, basic materialsMaterials are commonly used in the three kind of steel, carbon steel, alloy steel, special properties steelDesign of medium and low pressure vessel (two) theoretical chapter - low pressure vessel design,
7、 internal pressure and external pressure in the theory of medium and low pressure vessel design (internal pressure and external pressure)Internal pressure vesselLiquid level gauge pipe manholeInstability of an external pressure vesselHeadSupportCylinderTypical equipment (three) practice chapter - ty
8、pical equipment (heat exchangers, tower equipment, mixers), practice articles, typical equipment, heat exchangers, tower equipment, mixersHeat exchangerTower equipmentAgitatorFirst articleChapter 1Chemical equipment materialsMaterials and selection of chemical equipmentTeaching emphasis: teaching em
9、phasis:Selection of materials for chemical equipment. Selection of materials for chemical equipment.Teaching difficulties: teaching difficulties:Material properties. Material properties.Verse 1SummaryI. importance and complexity of material selection for chemical equipment1. operating conditions are
10、 limited2. restrictions on manufacturing conditions 2. restrictions on manufacturing conditions 3. restrictions on the performance of materials 3. restrictions on the performance of materials two and selection of materials should be followedApplicable, applicable, safe and economical principlesSecon
11、d quarterMaterial propertiesAnd the mechanical properties of materials in the external force (or external energy) materials in the external force (or external energy) against external behavior under the action, including deformation and resistance behavior, including deformation and resistance, whic
12、h is not allowed by the deformation capacity of more than or not damaged under external force.The ability to produce more than allowed deformation or not to be destroyed.StrengthPlasticityToughnessHardness1 strength: the solid material resists plastic change and strength under external force: the ch
13、aracteristics of form and fracture. The characteristics of form and fracture.Yield strength; yield strength; s (sigma 0.2); tensile strength; sigma B; tensile strength; creep strength; sigma creep strength; n endurance strength; sigma endurance strength; D fatigue limit; sigma fatigue limit; nThe me
14、tal materials under loads, metal materials under loads, when the load is no longer increase when increases, still occurred obvious plastic deformation to plastic deformation obviously, this phenomenon is called the yield. Elephants are called surrender.Room temperature tensile stress under 20 steel
15、tensile test at room temperature tensile test under tensile force of steelL0=10d0L0= 5d0orWhen a plastic deformation occurs, it should be called a yield point force, which is called a yield point, sigma SThe maximum stress value that can be reached from the initial load to the point where the fracture occurs is called the tensile strength. Tensile strength. B1 strength: the solid material resists plastic change and strength under external force: the characteristics of form and fracture. The characteristics of form and fracture.Yield strength;
