Process Fluid Machinery

 Ⅰ.General Information

 Ⅱ. Curriculum Nature and Course Objectives

1. Coursenature

 "Process Fluid Machinery" is one of the compulsory core courses of Process Equipment and Control Engineering major in colleges and universities, and it is the subject direction and characteristic course.

2. Curriculumobjectives

 Students are required to achieve the following goals through the professional study of “Process Fluid Machinery” course (the course goals correspond to graduation requirement index points 3.2(H), 4.3(M), 7.2(M) and 11.1(M)):

G1: master the basic structure, working principle, performance, use and adjustment of piston compressor, centrifugal pump and centrifuge, and be able to design and select the compressor, pump and centrifuge according to the process conditions;

 G2: It has the capability of condition monitoring and experimental system construction for typical models such as piston compressor, centrifugal pump and centrifuge;

 G3: be able to evaluate the possible damages and hidden dangers to human beings and the environment caused by the operation of process fluid machinery products from the perspective of environmental protection and sustainable development; Understand the status and role of fluid machinery in the construction of large-scale national projects, and establish the feelings of home and country.

 G4: Understand the relevant professional knowledge of practical engineering, so that students can analyze and solve practical engineering problems economically and reasonably on the premise of safety.

 Ⅲ. The Corresponding Relationship between Course Objectives and Graduation Requirements

 Table 1 Correspondence between course objectives and graduation requirements.

 Ⅳ. Teaching Contents and Requirements for the Lecturing Part

1. Contentsofpistoncompressor(16hours)

2. Teachingobjectives(G1,G2,G3,G4)

Through the systematic study of professional knowledge of piston compressor, the operationof typical piston compressor can be used, adjusted and managed. Select compressor correctlyaccording to process parameters and other conditions; Ability to carry out preliminary designcalculationofcompressoraccording to designparameters.

2. Teachingcontent

1. Overviewoffluidmachinery

2. Structureandclassificationofpistoncompressor

3. Thermalcycleofpistoncompressor

4. Multi-stagecompressionofpistoncompressor

5. Thermalperformanceofpiston compressor

6. Thermaldesigncalculationandperformancerecalculationcalculation

7. Dynamiccharacteristicsofpistoncompressor

8. Basicstructureandparameters

9. Performanceadjustment

10. Selectionofpistoncompressor

11. Auxiliarysystemsandcompletesetsofdevicesofpistoncompressor

12. Statemonitoringandfaultdiagnosissystemofpistoncompressor

2. Teachingrequirements.

Master the definition, classification and principle of fluid machinery, and understand thedevelopment trend of fluid machinery. Master the composition and function of piston compressionstructure; Thermodynamic cycle principle of piston compressor, especially the calculation of airintake and indicated work; Basis and method of multistage compression. Master the definition,measurementandinfluencingfactorsofcompressorthermodynamicperformanceparameters.Understandthecalculationmethodofcompressorthermodynamicdesignandperformancerecalculation.Grasptheanalysisanddeterminationmethodoftheforceandtorqueonthecompressor, and the influence of the force and torque on the compressor performance and itsbalancingmeasures.Understandtheselectionprinciplesofbasicstructuralparametersofcompressors, and master the performance adjustment methods, principles and basic selectionmethodsofcompressors.

2. Contentsofcentrifugalpump(9hours)

2. Teachingobjectives(G1,G2,G3,G4)

Throughstudyingthebasicprofessionalknowledgeofcentrifugalpump,Iwilluse,adjustandmanage the operation of centrifugal pump, and have the ability of basic selection and preliminarydesignofcentrifugalpump.

2. Teachingcontent.

1. Structure,workingprinciple,classificationandapplicationofcentrifugalpump

2. Definitionandmeasurementofcentrifugalpumpperformanceparameters

3. One-dimensionalflow theoryofcentrifugalpump

4. Influencing factors of centrifugal pump performance curve, determination of working point and adjustment method of working condition

5. Similarity principle, cutting theorem and application of centrifugal pump

6. Cavitation of centrifugal pump and its prevention

7. Structure, working principle, characteristics and performance adjustment of other types of pumps

8. Pump selection4.2.3 Teachingrequirements

Understandthestructure,workingprincipleandclassificationofcentrifugalpumps,andmasterthedefinition,determinationmethodandinfluencingfactorsofperformanceparametersofcentrifugal pumps; One-dimensional flow theory of centrifugal pump, the relationship betweenimpeller structural parameters and working capacity; Centrifugal pump performance curve and itsinfluencing factors, determination of working point and adjustment method of working condition;Similarity principle, conditions, contents and applications of centrifugal pumps; Definition andapplication of specific speed: Conditions, contents and applications of cutting theorem; Definitionanddeterminationofcavitationallowanceofcentrifugalpumpand preventionofcavitation.Understandthestructureandworkingprincipleofaxialflowpump,plungerpumpandnon-blockingpump,and understand the principleand method ofpumpselection.

Ⅳ.TeachingContentsandRequirementsfortheLecturingPart

3. Contentsofpistoncompressor(16hours)

2. Teachingobjectives(G1,G2,G3,G4)

 Master the working principle, composition, classification and main features of centrifugal compressors, the function and characteristics of components. Understand the basic equations of centrifugal compressors. Master the energy equation and Bernoulli's equation in the application of centrifugal compressor; understand the existence of losses within the compressor stage - wheelset losses, leakage losses, flow loss mechanism and quantitative description. Master the definition of the main performance parameters of the compressor flow, discharge pressure and pressure ratio, speed, power, efficiency, energy head coefficient. Understand the reasons for the occurrence of wheezing, master the elimination of methods; master the different methods of compressor performance regulation - speed regulation, inlet throttling adjustment and diffuser blade adjustment and other methods, characteristics and applicable occasions; master the centrifugal compressor flow similarity should have the conditions - geometrical similarity, motion similarity, power similarity, and the conditions of flow similarity. -geometric similarity, motion similarity, power similarity, thermal similarity and its similar conditions under the working conditions of conversion; understanding of centrifugal compressor axial force causes, axial force caused by the compressor failure judgment method, master the calculation of axial thrust, and the development of measures to balance. Master the working principle of centrifugal compressor sliding bearing, the structure of the tilting tile bearing and the factors affecting the performance. Familiar with the types of compressor failure caused by bearings and judgment methods and the characteristics of different vibration suppression bearings; understanding of centrifugal compressor internal sealing form and role, sealing form of the characteristics and its application occasions, sealing the compressor on the long cycle of the impact of reliable cloud center. Master the axial compressor working principle, structure and working characteristics; understand the different types of compressor structure characteristics, master the basic method of centrifugal compressor selection.

4. Contentsofcentrifugalcompressor(9 hours)

2. Teachingobjectives(G1、G2、G3、G4)

Master the working principle, composition, classification and main features of centrifugal compressors, the function and characteristics of components. Understand the basic equations of centrifugal compressors. Master the energy equation and Bernoulli's equation in the application of centrifugal compressor; understand the existence of losses within the compressor stage - wheelset losses, leakage losses, flow loss mechanism and quantitative description. Master the definition of the main performance parameters of the compressor flow, discharge pressure and pressure ratio, speed, power, efficiency, energy head coefficient. Understand the reasons for the occurrence of wheezing, master the elimination of methods; master the different methods of compressor performance regulation - speed regulation, inlet throttling adjustment and diffuser blade adjustment and other methods, characteristics and applicable occasions; master the centrifugal compressor flow similarity should have the conditions - geometrical similarity, motion similarity, power similarity, and the conditions of flow similarity. -geometric similarity, motion similarity, power similarity, thermal similarity and its similar conditions under the working conditions of conversion; understanding of centrifugal compressor axial force causes, axial force caused by the compressor failure judgment method, master the calculation of axial thrust, and the development of measures to balance. Master the working principle of centrifugal compressor sliding bearing, the structure of the tilting tile bearing and the factors affecting the performance. Familiar with the types of compressor failure caused by bearings and judgment methods and the characteristics of different vibration suppression bearings; understanding of centrifugal compressor internal sealing form and role, sealing form of the characteristics and its application occasions, sealing the compressor on the long cycle of the impact of reliable cloud center. Master the axial compressor working principle, structure and working characteristics; understand the different types of compressor structure characteristics, master the basic method of centrifugal compressor selection.

2. Teaching content

1. Basic structure, principles and characteristics of centrifugal compressors

2. Centrifugal compressor basic equations, centrifugal compression stage losses

3. Performance parameters of centrifugal compressor, the concept of surge and blockage conditions

4. Centrifugal compressor performance adjustment methods and mechanisms

5. The similar principle of centrifugal compressor

6. Axial force, radial bearing and thrust bearing of centrifugal compressor

7. Sealing of centrifugal compressors

8. Principle and structure of axial compressors

9. Selection of centrifugal compressors, condition monitoring and fault diagnosis

2. teachingrequirements.

Understandthestructure,performanceandcharacteristicsofcentrifugalcompression;Understand the phenomenon, mechanism, harm and prevention of centrifugal compressor surge;Methodand principle ofcompressorworking conditionadjustment.

5. Contentsofseparationofmechanical(6 hours)

2. Teachingobjectives(G1, G2, G3,G4)

Understand the mechanical separation method of heterogeneous materials-the principle of sedimentation and filtration, and the effect of external centrifugal force field, master the classification of centrifuges, understand the meaning of centrifuge models, and master the principles, basis and basic methods of centrifuge type selection.

2. Teachingcontents

1. Introduction:Typicalstructure,workingprincipleandapplicationofseparationmachinery

2. Typical models of filtration centrifuges and sedimentation centrifuges structure, working principle, performance and use

3. Selectionofcentrifuge

2. Teachingrequirements

Master the structure and working principle of typical separation machinery, and understand the wide application of separation machinery in industry and life. Typical models, structure, working principle, performance, use of filtration centrifuge and sedimentation centrifuge; sedimentation centrifuge material flow model and calculation of filtration and sedimentation centrifuge production capacity; mastery of centrifuge selection principles and methods.

Ⅴ.TeachingContentsandRequirementsforthePracticalPart

This course focuses on theoretical study, and its related experiments are concentrated in thecourse"ProcessEquipmentandControlEngineeringExperiment". Atthesame time,inthesubsequent production practice, students are required to further their understanding of the theoretical knowledge acquired through the internship, especially in the design, manufacture and operation and maintenance of fluid machinery studied in this course.

Ⅵ.EvaluationStandards

This course in the introduction to give examples of typical pumps, compressors, centrifuges in China's aviation, electric power, petroleum, chemical, hydropower and other industries, especially the application of localized development of equipment, such as polypropylene compressor in the PetroChina Jizhi plant to replace imported equipment, saving the enterprise cost of nearly 24 million yuan; high-power long-distance pipeline oil pumps has always been China's pump industry is a bottleneck in the technological development of the pump industry, and currently in the Xi'an, a pump company has formed a series of R & D and production. General mechanical equipment is closely related to national industrial development and national livelihood, but there are still some key equipment in the key technology needs to be imported, which has become a bottleneck restricting the development of the industry, such as nuclear main pump technology. Through the systematic introduction, students will understand the wide range of applications of their majors, the gap between the advanced technology of general-purpose equipment and that of foreign countries, as well as the national investment and attention to the field, showing students the future employment prospects, motivating students to learn the course seriously and actively participate in the future of the country's general machinery research and development and manufacturing.

Ⅶ.EvaluationStandards

7.1 Assessmentmethodsandcontents

The teaching links of this course include classroom teaching, class discussion, exercise assignments and experimental reports, and the assessment methods include routine assignments, classroom tests, classroom discussions (limited to experimental classes) and final unified examinations. The final exam will be a closed-book written exam based on the contents of lectures and discussions in class. Examination questions include noun explanation, filling in the blanks, selection, judgment, analysis and calculation.

Table2Thewayandcontentofcourseassessmentanditssupportingrelationshiptograduationrequirementindex points

7.2 Scoringcriteria

The final grade of the course is based on the percentile system, in which process assessmentaccounts for 40% (including classroom performance and usual tests accounting for 10%, exerciseassignmentsaccounting for20%), andfinalexams accounting for60%.

Table3Gradingstandardofclassroomperformance

Table4 Scoringcriteriaforexerciseassignments

According to the standard answers or requirements of the final examination, score according tothe percentagesystem, andconvertitinto60 pointsafterthe overallevaluation.

Ⅶ.TextbooksandRecommendedReferences

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   1. Textbook

1. Kangyong, Li Guishui, ProcessFluidMachinery(2ndEdition). ChemicalIndustryPress,2016.6

2. LiYun,JiangPeizheng.ProcessFluidMachinery(2ndEdition).Beijing:ChemicalIndustryPress,2008.

3. MaRunmei.ProcessFluidMachinery,a trialtextbookinschool.

2. Referencebooks.

1. YuYongzhang.TechnicalManualofPositiveDisplacementCompressor(FirstEdition).Beijing:MachineryIndustry Press, 2000.

2. QiDatong.PrincipleofCentrifugalCompressor.Beijing:MachineryIndustryPress,2018.

3. KlausH.Ludtke,ProcessCentrifugalCompressors-Basics,Function,Operation,Design,Application,Springer, 2004.

WrittenbyWeimin Wang

Course teaching team members: Weimin Wang, Runmei Ma, Jinjie Zhang

Inspector: Duan Chenghong