EBOOK - Fire Service Hydraulics and Pump Operations (Paul Spurgeon) | Cộng đồng Kỹ thuật cơ điện Việt Nam EBOOKBKMT

EBOOK - Vận hành bơm thủy lực cho hệ thống cứu hỏa (Paul Spurgeon) - 243 Trang.

Over the years, some highly respected people have studied, researched, and written about fi re service hydraulics. Two books I have studied and learned from are Fire Department Hydraulicsby Eugene F. Mahoney and Fire Service Hydraulics by numerous authors, edited by James F. Casey.
These texts have provided much of my knowledge of the subject, but my approach to explaining this science is directed more toward the in-thestreet, practical side of the fi eld. This book is broken down into two sections. The fi rst section deals with

the theory and practice of pencil-sharp hydraulics. The purpose of this section is to give you, the reader, the basic understanding of water usage in the fi re service .
These chapters break down the theories behind hydraulics and how the formulas are derived. A practical approach of getting water into the pump and then delivered to the fi reground is explained in functional terms. The second chapter breaks down the equation that every pump operator needs to calculate at every fi re. This is the formula that is at the heart of every pump operation. Special situations such as relay pumping and drafting are also covered. These situations are broken down into how and why they are applied. These situations may not occur every day, but when they do, you will be expected to know how to handle them. Not only will the hydraulic calculations be discussed, but why and how these special operations are needed is also addressed.

CONTENTS:

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
FESHE Objectives Correlation . . . . . . . . . . . . . . . . . . . . . . xiii
Section I
1. Why We Use Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Water as an Extinguishing Agent . . . . . . . . . . . . . . . . . . . . . . . 1
Properties of Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Basic Fire Service Hydraulic Figures. . . . . . . . . . . . . . . . . . . . . 5
Force vs. Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Rules Governing Fluid Pressure. . . . . . . . . . . . . . . . . . . . . . . 11
Formulas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Summary of Chapter Formulas . . . . . . . . . . . . . . . . . . . . . . . 18
Test 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Test 1 Answers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2. The Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Nozzle Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Friction Loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Appliance Friction Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Elevation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Putting It All Together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Fire Service Hydraulics and Pump Operations
Conclusion.....................................54
Summary of Chapter Formulas.......................55
Test 2.........................................56
Test 2 Answers..................................59
3. Water Supply.....................................61
History.......................................61
Consumption...................................62
Water Source...................................63
Treatment Process................................64
Water Distribution System..........................64
Fire Hydrants...................................67
Storage Tanks...................................79
Test 3.........................................81
Test 3 Answers..................................82
4. Drafting..........................................85
Reasons for Drafting..............................85
Drafting Basics..................................86
Equipment Needed for Drafting......................87
Lift..........................................88
How Far Can Water Be Lifted?........................89
Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Amount of Water That Can Be Lifted...................92
Net Pump Pressure...............................92
Drafting Procedures...............................93
Summary of Chapter Formulas.......................95
Test 4.........................................96
Test 4 Answers..................................97
5. Relay Pumping....................................99
Reasons for Relay Pumping..........................99
Setting Up the Relay.............................100
Determining the Number of Pumpers Needed...........100
The Capacity of the Pumpers.......................103
Pressure Relays.................................104
Test 5........................................108
Test 5 Answers.................................109
6. Sprinkler and Standpipe Systems...................111
Sprinkler Systems...............................111
Standpipe Systems...............................124
Test 6........................................134
Test 6 Answers.................................135
Section II
7. Types of Pumps...................................137
Piston Pumps..................................137
Centrifugal Pumps...............................140
Rotary Pumps..................................147
Test 7........................................149
Test 7 Answers.................................151
8. The Pump Panel..................................153
Intake Valves...................................155
Master Discharge Gauge...........................158
Intake Gauge...................................159
Discharge Outlets and Valves........................160
Transfer Valve..................................163
Pressure Relief Valve or Pressure Governor..............164
Drain Valves...................................168
Miscellaneous Knobs, Levers, and Switches..............170
Test 8........................................174
Test 8 Answers.................................176
9. Foam...........................................177
Foam Tetrahedron...............................177
How Foam Works...............................178
When Can Foam Be Used Effectively?.................179
When Is Foam Not Effective?.......................180
Types of Foam..................................181
Foam Proportioning Devices........................184
Test 9........................................190
Test 9 Answers.................................191
Fire Service Hydraulics and Pump Operations
Appendix.......................................193
Problems.....................................194
Answers......................................201
Glossary........................................207
Index...........................................217

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