Civil Production

COMMERCIAL

Department of calculated-experimental analysis

of Design Bureau of NPO Energomash

proposes services on accomplishment of multidisciplinary

calculations and experiments at research, designing,

operational development, test and maintenance

of various technical systems (machines and elements of designs)

on basis of developments of space propulsion

1. Static and dynamic calculations on strength

Common tasks of strength:

·      Calculations of intense-deformed state of designs.

·      Calculations on destructive revolutions of rotating parts of rotary aggregates.

·      Analysis of stability.

·      Analysis of complex contact interaction of elements of design.

·      Calculations of critical speeds of rotation of rotors.

·      Calculations of natural frequencies and forms of oscillations, harmonic analysis.

·      Calculations of nonlinear dynamic transients.

·      Analysis of frequency characteristics at effect of random loads.

·      Modal analysis.

·      Calculation of resource.

·      Multicyclic and low-cycle fatique.

·        Optimization of design.

Carrying out of calculations of intense-deformed state of elements of designs:

·      Rotors, screws, impellers, shaft, and also case units of pumps and turbines

·      Heat-stressed constructions: combustion chambers, gas generators and preburners,

       heat exchangers.

·      Framed constructions, gimballing units, mechanical dampers, tanks, pipelines,

       steering actuators, shipping containers, units and aggregates of test rigs.

·      Threaded, flanged and nipple joints, metal seals

2. Turbopump units



·      Profiling flowing part of high-speed pumps and turbines of high power

       (up to 200 МW), providing high characteristic of profitability and

       operational capacity at high level

       of intense-deformed state of elements of design

·      Profiling flowing part of impeller pumps possessing extreme high anticavitation

       performances in wide range of working fluids including for cryogenic liquids

·      Optimization of characteristics of units of bearings and seals of high-revolution

       pumps and turbines of high power

·      Development of algorithms and software for on-line analysis of operation

       of pumps and turbines in structure of feed system

·      Optimization of dynamic characteristics of pumps and turbines

               for support of maximum possible effective operation of feed system.

3. Heat exchange and hydraulics



Проведение расчетов агрегатов и элементов конструкций:

·        Chambers (mixing head, combustion chamber, nozzle).

·        Gas generators and preburners.

·        Heat exchangers and heat-steam generators.

·        Turbopump units.

·        Throttles, regulators of flow, valves.

·        Pipelines.



Key parameters received as result of calculations:

·        Temperature.

·        Heat flows.

·        Coefficients of heat transfer.

·        Speeds of flow.

·        Hydraulic resistances.

·        Cooling.

4. Thermogasdynamics



Non-stationary viscous transonic flows of gas in turbine

·      Stationary and non-stationary solutions simultaneously in channels of stator and rotor.

·      Laminar and turbulent flows.

·      Incompressible and compressed (including subsonic, transonic and supersonic speeds) flows.



Thermogasdynamics of propellants and products of combustion

·      Calculation of characteristics of products of combustion of hydrocarbonic,

       nitrogenated, metallized and others propellants.

·      Thermogasdynamic calculations of processes of exhaust of combustion products

       from nozzles in view of dissociation and recombination of chemical elements,

       and also in view of various types of losses: incompleteness of combustion, friction,

       dispersion, etc.

·      Calculations of thermal-physical properties of combustion products: viscosity,

       thermal conductivity, etc.

   Calculations of aerodynamic inertial separators for gas flows cleaning against hard particles.



5. Functional diagnostics

·      Diagnostics of state of complex technical systems

       and their units (in structure of system): method of structural exception,

       method of coefficients of interrelation, method of equivalent resolution

       with rejection of abnormal measurements during tests and maintenance.

·      Diagnostics of hydraulic and gas lines with active units

      (pumps, compressors, valves, gates) in real-time mode: localization of leakages

      and blockings of flowing parts; estimation of resource of aggregates and elements of design.

·      Spectral analysis and diagnostics of functioning state on vibrations

       of elements of design and pulsings of parameters of operational mediums.

·      Research of stationary and transient modes of operation on basis

       of spectral analysis of vibroacoustic parameters (vibration, pulsing of pressure).

·      Experimental research of dynamic characteristics of aggregates.

·      Analysis of vibroacoustic responses of aggregates to distortions caused

       by rotary elements (monitoring of rotor frequencies).

·      Analysis of natural frequencies of vibroacoustic oscillations of elements of design.

·      Estimation of stability of processes.



6. Mathematical models and algorithms for analysis of stationary

and transition heat-hydrogasdynamic working processes

·      Analysis of statics, dynamics in time and frequent area, wave processes.

·      Analysis of stationary and non-stationary processes in hydrolines set by graphs.

·      Analysis of distributed parameter systems.

·      Transients.

·      Analysis of processes of start up and shutdown.

·      Wave processes in aggregates at start up and shutdown.

·      Filling volumes.

·      Analysis of LF- and HF- stability, including POGO, in frequent area.

·      Frequent transfer functions of high (from above 400) order,

       transition matrixes, amplitude- and phase-response characteristics, locuses.

·      Definition of roots of characteristic equation, their trajectories.

·      Delimitation of stability on D-splitting method.

·      Analysis of controllability and regulation.

·      Control of working processes on measured parameters.

Software:

License software packages: MSC.NASTRAN for Windows, MSC.PATRAN,

MSC.NASTRAN, ANSYS Mechanical, LMS.Virtual. Lab, LMS.Test. Lab,

ANSYS CFX ;

Authoring developments of NPO Energomash.

Contacts:

e-mail: energo@online.ru, fax (495) 777 21 36,

tel: (495) 572-87-73, (495) 777-02-76

Consulting services

Proceeding from the big know-how received during development and manufacturing of powerful highly effective

liquid propellant rocket engines, company offers various services, including development of manufacturing processes,

methods of estimation of quality and scientific positions with reference to materials and equipment of the customer,

development and introduction of works at manufacture of the customer.

Services can be rendered in following directions:

- forging and punching of billets from metal materials of various classes;

- welding of details and designs from homogeneous and diverse materials with differing physic-chemical

and mechanical properties;

- welding of details and designs from nonferrous metals;

- brazing of details and designs from homogeneous and diverse materials solders of various class;

- non-destructive methods of estimation of durability of weld-brazed designs;

- estimation of the nature of occurrence of defects in materials of weld-brazed designs;

- concept of process of occurrence of defects, including cracks, and their relations with physic-chemical

and mechanical properties of materials. Research of micro- and thin structure of materials;

- concept of occurrence of cracks in metal materials contacted with liquid-metal media;

- methods of prevention of occurrence of defects in metals, including cracks, at forging, punching, welding,

brazing and other processes;

- methods of influence on material with the purpose of creation of regulated stable structure and reduction

of residual, and arising stretching stresses during manufacture of designs;

- nature of process of destruction of materials, time defects and their relation with structure of metals;

- criteria of growth of cracks and their relation with influence of technological, metallurgical, chemical and

other factors;

- relation between embrittlement of materials and their mechanical properties in inert medium and

at influence of liquid-metal medium;

- preparation of surfaces with regulated roughness, corrugation, durability and hardness and ways

of quantitative estimation of quality of surface;

- processing of surfaces by means of chemical and electrochemical methods with purpose of removal

of pollution by degreasing, etching, activation of surfaces, polishing, etc. Identification of the nature of

particles of pollution;

- change of surface layer by electrochemical sedimentation of metals: nickel, copper, silver, gold,

manganese, chrome, etc.;

- methods of removal from surface layer of metal of substandard covering and restoration

of mechanical properties of metal and coverings;

- non-destructive methods of measurement of thickness of coverings of details, including

on details of complex form;

- technological maintenance of necessary parameters of roughness of surface of details;

- methods of estimation of physicomechanical condition of surface;

- creation of catalogue of typical variants of technological processes with reference to machining,

galvanic coverings, brazing, welding, other processes;

- maintenance of calculation of optimum parameters of cutting of metals with purpose of achievement

of high efficiency, including expenses for manufacturing, technological cost price, piece time, piece

productivity, technological productivity, auxiliary time, etc.;

- selection of cutting tool with purpose of maintenance of demanded geometry and roughness of details

at minimal expenses during processing;

- manufacturing of models for estimation of geometrical sizes and forms of developed designs,

and also prototypes for check of assemblability and carrying out of various modelling tests;

- contactless optical estimation of volumetric measurements of objects with high accuracy

(geometry and arrangement of elements of design);

- creation of three-dimensional computer models on basis of license software.

Information on interesting questions can be received: fax(495) 777-21-36,

e-mail energo@online.ru.

THE OIL HORIZONTAL RETAINING PUMP UNIT WITH THE INCREASED SOAKING UP ABILITY

Oil horizontal retaining pump unit NGPNA 3600-120 is intended for submission of oil from tanks to the main pumps and is installed in structure of head petropumping stations (PPS) of the main oil pipelines.

NGPNA pump unit can be used for bulk terminals, and also as pumps for intrapark swapping oil and the swing of tanks.

The unit is delivered with the basic rotor on submission 3600 m3/hour, and also with rotors at 2500 m3/hour or at 4500 m3/hour.

The design of the pump provides parallel work of pump units.

The pump is maintained without oil station.Units of the pump are greased and cooled by directly pumped oil, without any additional pipelines of the pump.
The pump possesses high soaking up ability. Cavitational stock is in a range of 1,5-3,0 m.
The pump has high reliability - the time between failuresmakes not less than 15 thousand hours.
In structure of head PPS with non-sunken tank park the retaining pump units NGPNA 3600-120 are mounted on a zero mark.

The basic characteristics:

The name of parameter	Value of parameter
Submission, m³/h	2500	3600	4500
Pressure, m	140	135	125
Efficiency, not less, than %	83	85	85
Supposed cavitational stock, no more, than m	1,5	2,5	3,0
Frequency of rotation of a rotor, sec-1 (rpm)	25 (1500)
Average-square-law value of vibrospeed, no more, than mm/sec	3,5
Resource of work before repair, not less, than hour	36000
Service life before discarding, not less, than years	50
Overall dimensions (l х w х h), mm	2450 х 2130 х 1820
Weight, kg	5800

The drive of the unit depending on a standard size of a rotor is carried out by the asynchronous short-circuited electric motor in explosion-proof shall of type АZV or АZTV with air cooling by power from 800 up to 2000 kW, voltage of 6 or 10 kV.

Serial manufacturing of pump unit NGPNA 3600-120 is made at a plant of Open Joint Stock Company «NPO ENERGOMASH named after academician V.P.Glushko».

Pump unit NGPNA in assembly

General view of NGPNA pump