0000007625 00000 n 0000006625 00000 n 3 Figure 1 The Basics Of Pump Theory It is common for … Here we give just a few examples of pumps from a range of different technological contexts. Positive Displacement Pumps Diaphragm pumps. 0000007223 00000 n �zA�⟎BmՂ�lqI�QQ�N��QJËr3#!�.9��R5�wk乔 {�Pn���%0R-�/w�Y��e$�N>nTD�Nv�W;��J&W�T�Ǹ�畀Tkk�"M��e3^O���…���Z��Y:�m���Kv쵩���������e��3S/!j"8>q��"M����S7���S�n��ʇ�&�j�n!B�j��&hc +^&g� ]�!�֤%��6�iID�}��Z� � The main difference is in design of the impellers, which give high discharges at low heads. 6.1 Pump Types Pumps come in a variety of sizes for a wide range of applications. 0000007445 00000 n 0000085030 00000 n 'Cf��ڣ��!=��uߵ�f�Kw�� �t������2�?� w�?�p�F�����"���r�M���G��x�5����\ G+�A&E�>}�vu�K�Of�]�{��8�;\��7)%�~����m%���̰ω����G�m���r}�� G�Ἷ��P"x ,�-J�� �����Y�iT���z�$g�i�7��kϭ�+��}g1�8@��W㥲J-�n��iI�_�. 0000001000 00000 n Dynamic pumps can be sub-classified as centrifugal and special effect pumps. 38 0 obj << /Linearized 1 /O 40 /H [ 1000 398 ] /L 392920 /E 113213 /N 9 /T 392042 >> endobj xref 38 28 0000000016 00000 n 0000002211 00000 n Positive Displacement pumps generally give more pressure than Centrifugal Pumps. �e�UC��, ���@ ��z�HK �,XD����S���Y@��^(�f� Centrifugal Pump- Definition • Centrifugal Pump can be defined as a mechanical device used to transfer liquid of various types. Slurry Pumps cover pumping of mud/clay, silt and sand in size range of solids up to 2mm. �=�=�ְLd�܈������[y�>��4�7(,��"��@� �� e�e� endstream endobj 65 0 obj 285 endobj 40 0 obj << /Type /Page /Parent 35 0 R /Resources 41 0 R /Contents 49 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 41 0 obj << /ProcSet [ /PDF /Text ] /Font << /TT2 48 0 R /TT4 45 0 R /TT6 44 0 R /TT8 50 0 R /TT10 52 0 R /TT12 54 0 R >> /ExtGState << /GS1 57 0 R >> /ColorSpace << /Cs6 46 0 R >> >> endobj 42 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 656 /Descent -216 /Flags 34 /FontBBox [ -558 -307 2034 1026 ] /FontName /DAELGJ+TimesNewRoman,Bold /ItalicAngle 0 /StemV 160 /XHeight 0 /FontFile2 59 0 R >> endobj 43 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 656 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2028 1007 ] /FontName /DAELHM+TimesNewRoman /ItalicAngle 0 /StemV 94 /XHeight 0 /FontFile2 61 0 R >> endobj 44 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 150 /Widths [ 250 0 0 0 0 0 0 0 333 333 500 0 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 0 564 0 444 0 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 722 667 556 611 0 722 944 0 0 0 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 333 0 0 0 500 ] /Encoding /WinAnsiEncoding /BaseFont /DAELHM+TimesNewRoman /FontDescriptor 43 0 R >> endobj 45 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 121 /Widths [ 250 0 0 0 0 0 0 0 0 0 0 0 0 0 250 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 722 0 722 722 667 611 778 0 389 0 0 667 944 722 778 611 778 722 556 667 722 722 1000 722 722 0 0 0 0 0 0 0 500 556 444 0 444 333 500 0 278 0 556 278 833 556 500 556 0 444 389 333 556 500 722 500 500 ] /Encoding /WinAnsiEncoding /BaseFont /DAELGJ+TimesNewRoman,Bold /FontDescriptor 42 0 R >> endobj 46 0 obj [ /ICCBased 56 0 R ] endobj 47 0 obj << /Type /FontDescriptor /Ascent 1005 /CapHeight 0 /Descent -209 /Flags 32 /FontBBox [ -73 -208 1707 1000 ] /FontName /DAEJPH+Verdana-Bold /ItalicAngle 0 /StemV 133 /FontFile2 58 0 R >> endobj 48 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 118 /Widths [ 342 0 0 0 0 0 862 0 0 0 0 0 0 0 0 0 0 711 711 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 724 830 683 0 0 0 0 0 0 0 0 0 0 0 0 0 710 0 0 0 1128 0 0 0 0 0 0 0 0 0 668 0 0 699 664 422 699 0 342 0 0 342 1058 712 687 699 0 497 593 456 0 650 ] /Encoding /WinAnsiEncoding /BaseFont /DAEJPH+Verdana-Bold /FontDescriptor 47 0 R >> endobj 49 0 obj << /Length 2168 /Filter /FlateDecode >> stream Centrifugal Pumps •Develop pressure by increasing the velocity of the liquid •Liquid is literally flung out of the cutwater . Pumps can be classified by their method of displacement into positive-displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valveless pumps.There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps. This pump can either be an overhung type or between-bearing type but is always a radially split case pump. !����x� �x��`m��S����iho���V!��� ��7����� �BrQ����'Y�uWl)����9Aa�}bz0〫0zֆ��:rM�p��S���#��z���!�˩ Centrifugal Pumps: Basics Concepts of Operation, Maintenance, and Troubleshooting, Part I By: Mukesh Sahdev, Associate Content Writer Presented at The Chemical Engineers’ Resource Page, www.cheresources.com Figure B.05: Suction and Discharge Nozzle Locations 3. The presentation will generally follow a framework of progressivelydecreasing specific speed,N, and so will begin with high specific speed pumps 0000052765 00000 n ���.���$����7��m��p�0� �C The pressure developed and the work done are a result of essentially static forces rather than dynamic effects. 0000001983 00000 n ՝�ljx�eM��B��~�z$n�L?u�$�� ���U��c��B��3vI�u���Q�y78�� ų��'h�u��IO�X:�C�C�/�^������{���1. �K����J!�*~��,�1��k�ꈲ���bG���>ya++Rs>�ț=~yP�Ē�e�Jm�bT9ӛ����eU���6��vT�Ȯz������ j��y�̣@�.h=8@�v�et"� ����f6�rM_u�*=4�Ol��cm �����[��nA�2�]n�l����o�M��q˰�*�á�:W���:��������`���~�ޗ�s�Ϳ�����wWz�z���֊�o�!.�v�M���z�p% r�*B���W�a/(�z��*�q�Q'D�����4��35��A�]г�j�����Oo�ѩ��w���Ɣ��y,�yڳ�� ����H0V�^��V&ƪR��U��E�Jqa:l� �͒���ktkZ 0000001377 00000 n 0000003503 00000 n axial flow type and mixed flow type are used in this pump. 0000006873 00000 n The two types of pumps behave very differently regarding pressure head and flow rate: • The Centrifugal Pump has varying flow depending on the system pressure or head • The Positive Displacement Pump has more or less a constant flow regardless of the system pressure or head. PUMPS CHAPTER –11For more chemical engineering eBooks and solution manuals visit here www.chemicallibrary.blogspot.com 2. h�bbd``b`��׀C��$�$Xف�z �e$&FF6�bFt�?C�� b� endstream endobj startxref 0 %%EOF 390 0 obj <>stream Size ranges are: `��@���a�.AKǤ��ﻒ@I� �P�-��\�w!�?8QCfު�z��B��[Vx��w�?���� ��wr���-��^�.�}�[�E�����_��[Fz���R�a]���=~]��mJ�yh�b���@�� ?���h�8�����pw��0fضr£Q���u>x��������JI�9wKą8h�V��dM����ll̿|�1eӒ�̝,�oɜj�$�ad��!�G��T�&.>�}���m��\���m�u���&�TO|��H9dT�cϻ cZ�V���2T�ƞ}%�(-~�7��"�?D�L|��ֲ��G�]� u��i�֟�]�S�:��E��.o1��{����Bb sE�o#��ʿT�zV�Aaޢ �+�^+g�Ъ0��`2^�b������rs>�6�����3��i���g�2&`đ��XLv+�j�,굻�Hy����h�#�B��sm1T+t�s���X�~�1yy �S@��VF��o[�F�܄F� endstream endobj 379 0 obj <>stream