The method of calculating the lobe wall thickness of cuff cylinder piston seal

The presented article describes a method for calculating the wall thickness of the lip seal lobe in the ANSYS Workbench Mechanical software package. The main problem that designers face when choosing the wall thickness of the lobe of cuff seals for reciprocating compressor units operating without lubrication is described. As a result of the work, the maximum and minimum wall thickness are calculated for the materials most common in oil-free compressor units. Antifriction materials of the Flubon and Fluvis groups containing up to 20 % carbon fibers have the smallest wall thickness in all pressure ranges considered. At the same time, the results obtained allow us to speak about the low efficiency of cuff seals with a maximum wall thickness at pressures below 1 MPa.

1. Mirzoyev R. G., Kutushev I. D. Osnovy konstruirovaniya i rascheta detaley iz plastmass i tekhnologicheskoy osnastki dlya ikh izgotovleniya [Fundamentals of design and calculation of plastic parts and technological equipment for their manufacture]. Leningrad, 1972. 416 p. (In Russ.).

2. Makarov G. V. Uplotnitel’nyye ustroystva [Sealing devices]. 2nd ed. Leningrad, 1973. 232 p. (In Russ.).

3. Uplotneniya [Seals] / Trans. from Engl. V. P. Kharitonova; ed. by V. K. Zhitomirskogo. Moscow, 1964. 293 p. (In Russ.).

4. Kholan K., Kalina A. Uplotneniya v mashinostroyenii [Seals in mechanical engineering] / trans. from Czech. A. A. Zhukova. Moscow, 1961. 67 p. (In Russ.).

5. Kokichev V. N. Uplotnyayushchiye ustroystva v mashinostroyenii [Sealing devices in mechanical engineering]. Leningrad, 1962. 253 p. (In Russ.).

6. Zakharenko V. P. Osnovy teorii uplotneniy i sozdaniye porshnevykh kompressorov bez smazki [Fundamentals of the theory of seals and the creation of reciprocating compressors without lubrication]. St. Petersburg, 2001. 159 p. (In Russ.).

7. Yusha V. L., Busarov S. S., Nedovenchany A. V., Goshlya R. Yu. Eksperimental’noye issledovaniye rabochikh protsessov tikhokhodnykh dlinnokhodovykh bessmazochnykh porshnevykh kompressornykh stupeney pri vysokikh otnosheniyakh davleniy nagnetaniya k davleniyu vsasyvaniya [Experimental study of working processes of low-speed longstroke lubrication free piston compressor stages at high discharge pressure to suction pressures] // Omskiy nauchnyy vestnik. Ser. Aviatsionno-raketnoye i energeticheskoye mashinostroyeniye. Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering. 2018. Vol. 2, no. 2. P. 13–18. DOI: 10.25206/2588-0373-2018-2-2-13-18. (In Russ.).

8. Nedovenchanyi A. V., Yusha V. L., Busarov S. S. Experimental evaluation of the efficiency of long-stroke, lowspeed reciprocating compressor stages in compression of different gases // Chemical and Petroleum Engineering. 2018. Vol. 54. Р. 593–597. DOI: 10.1007/s10556-018-0520-1. (In Engl.).

9. Busarov S. S., Nedovenchany A. V., Titov D. S. Metodika modelirovaniya rabochikh protsessov tikhokhodnykh dlinnokhodovykh kompressornykh stupeney: cvidetel’stvo o gosudarstvennoy registratsii programmy dlya EVM [Method of modeling the working processes of low-speed long-stroke compressor stages: certificate of state registration of a computer program]: Electronic resource registration certificate No. 2019660287. (In Russ.).

10. Yusha V. L., Karagusov V. I., Busarov S. S. Modeling the work processes of slow-speed, long-stroke piston compressors // Сhemical and Petroleum Engineering. 2015. Vol. 51, Issue 3-4. P. 177–182. DOI: 10.1007/s10556-015-0020-5. (In Engl.).

11. Yusha V. L., Busarov S. S. Eksperimental’naya otsenka indikatornogo koeffitsiyenta podachi porshnevoy dlinnokhodovoy kompressornoy stupeni [Experimental evaluation of the indicator feed rate of a long-stroke pistons compressors stage] // Kompressornaya tekhnika i pnevmatika. Compressors and Pneumatics. 2020. No. 3. P. 39–41. (In Russ.).

12. Madenci E., Guven I. The Finite Element Method and Applications in Engineering Using ANSYS. 2015. DOI: 10.1007/978-1-4899-7550-8. (In Engl.).

13. Plastinin P. I. Porshnevyye kompressory. V 2 t. T. 1. Osnovy proyektirovaniya. Konstruktsii [Piston compressors. In 2 vols. Vol. 2. Fundamentals of Design. Constructions]. 3rd ed. Moscow, 2008. 711 p. (In Russ.).