Buckling Pin Devices. Peter Boulos MEA Sales Manager BS&B Specialty Valves

Transcription

1 Buckling Pin Devices 1 Peter Boulos MEA Sales Manager BS&B Specialty Valves Peter.Boulos@bsbsystems.ae

2 BPRV Design and Development Designed as: A non-reclosing reclosable Pressure Relief Device An alternative non-reclosing Pressure Relief Device Usually Rupture Disks. An alternative to reclosing Pressure Relief Valves API series and pilot operated valves. To Provide in-line Pressure or Vacuum relief Easy to upgrade a rupture disk position Installed directly between companion flanges To offer quick and simple External reset, without opening flanges/piping! 2

3 Buckling Pin types Buckling Pin relief Valve BPRV Inline Body Configuration Bucking Pin API Series Valve BPAV Angle Body Configuration 3

4 How it works? - Offset shaft butterfly valve concept. - The offset of the shaft results in a turning moment - Moment is transferred to force to buckle the PIN. 4

5 Enclosure & Mechanism PART LIST IDENTIFICATION Set Screw 2. Buckling Pin 3. Pin Holder 4. Stop Block 5. Latch 6. Input Arm 7. Trigger 8. Lever Arm 9. Pivot Assembly 10. Contact Points 11. Bumper

6 6

7 7

8 8 Replacing Buckling Pin

9 Buckling Pin Relief Valve Set Pressure Control D Based on Euler s Law* which allows us to predict the compressive load required to buckle the pin L D L Force to make 4 pin buckle 2 E E: Modules elasticity 9 *1776 German scientist

10 10 60 BPRV testing

11 Sensor - Indicator Sensor installed on free end of shaft BPRV Closed-Green Sensor Enclosure is to IP66 / Nema 4 or 4X others by request Cables can be conduit connected Sensor switch to be electrically specified by user to meet local electrical standards 11

12 Buckling Pin Cartridge SAF-T-PIN patent pending Cartridge is a push fit & pull out component Cartridge is a 1-way fit component Used pin is visible through plastic tube 12

13 BPRV Response Time -a function of set pressure. Based upon an 8 Nominal Size; Set Pressure(psi) Response Time (msec) Response time defined as the period from first rotation of the shaft to latched full open. Compares to typical pressure relief valve response times of 100~500 msec 13

14 International Codes & Standards Buckling Pin Valves are recognized by the following standards as an alternative to spring loaded valves and rupture disks: ASME Section VIII UG UD stamp Required Formally known as ASME Code Case Buckling pin devices may be used as described below: (1) A buckling pin device may be used as the sole pressure relieving device on a vessel. (2) A UD stamped buckling pin device may be installed between a pressure relief valve and the vessel provided

15 International Codes & Standards Buckling Pin Valves are recognized by the following standards as an alternative to spring loaded valves and rupture disks: API 520 / 521 / 526 / 537 Buckling pin devices are compression-loaded pin-actuated devices and are the most extensively used type of pinactuated device EU Pressure Equipment Directive EN ISO Requires a CE Mark for all pressure relief devices over 0.5 barg ISO 9001 Quality Systems Certification BS&B s Manufacturing and assembly facilities are ISO 9001 Certified.

16 Flare Application Many customers are moving towards emission reductions projects and closed flare systems can be used to obtain random flaring instead of constant flaring (27% reduction). The BPRV is used as a relief device on the bypass of the control valve incase it should fail closed, in accordance with API 537. Fail Open Quick Control Valve To Flare Buckling Pin Valve From API 537: Flare system safety considerations require valve bypasses, each of which must contain a fail-safe device (rupture disk or buckling pin)." 16

17 Flare Application Flash 17

18 18 Flare Application

19 Buckling Pin Valves - Applications ESP Pump Protection BPRV Closed Fluid pumps freely to Oil/Water separator BPRV Open Flow line blocked, flow recirculates to well casing Advantages of the BPRV in this Application Pump is protected by a mechanical fail safe device Well oil/water column is maintained even with a blocked outflow pipe, reduces the potential of the well drying out and needing to be re drilled BPRV latches when open, eliminates chattering thus flow and pressure to pump are constant, reduces system hysteresis and therefore improves plant reliability 19

20 Shell Tube Heat exchanger The BPRV has been used to protect the shell side due to the fast response time. Reducing the downtime compared to the rupture disks. 20

21 The Buckling Pin API-Series Relief Valve BPAV 21

22 The Buckling Pin API-Series Relief Valve BPAV* The First API Series Buckling Pin Relief Valve Same body Configuration as API Safety Relief Valves Piping Dimensions are API Standard *US & International Patents Pending 22

23 The Buckling Pin API-Series Relief Valve Buckling Pins are installed with cap-screw Only takes minutes to reset! The Calibrated Pin certifies the device!!! Operate to 90% of set pressure with no simmering! No orifice, high capacity 23

24 Closed Open

25 Product Capabilities BPRV - Inline Sizes, 2 ~ 60 Pressures, 1 psig ~ 2250 psig Temperature, -196C ~ +260C Tolerances, +/- 5%, +/- 2 psi less than 40 psig Gas / Liquid / Multi Phase Media BPAV (-R) API Series Sizes, 1 x 1.5 ~ 12 x 14 Pressures, 1 psig ~ 5000 psig Temperatures, -250 C ~ C Tolerances, +/- 5%, +/- 2 psi less than 40 psig Gas / Liquid / Multi Phase Media

26 After Sales Focus BS&B is there to support our customer anywhere in the world BS&B supplies Complete Training seminars to operators. BS&B service experts can supervise installation, commissioning and give preventative maintenance training. 26

27 End User Reference List Energy Industry Process Industry Exxon - Baytown, Texas Esso Kome, Chad Aramco - Saudi Arabia SABIC Saudi Arabia Imperial Oil Ontario, Canada Petrobras - Brazil PDVSA - Venezuela BP/Amoco UK/USA/Azerbaijan Shell Singapore / Nigeria/Brunei/Aberdeen ConocoPhillips USA / Canada Talisman Energy UK Chevron-Texaco Kazakhstan PETRONAS Malaysia Woodside, Pluto LNG Australia NGC New Zealand ADMA OPCO UAE EnCana Canada Chevron Amoseas Indonesia Qatar Gas Qatar Qatar Petrolum - Qatar Boruge 2 UAE TransCanada - Canada ConocoPhillips, Darwin LNG Australia Grain LNG UK Japan Petroleum and Exploration Japan Inpex Corporation - Japan Petrofac UK Keyera Alberta, Canada GASCO UAE PDO Oman Merck - Danville, Pa, USA Unocal - Kenai, Alaska, USA Hoechst Celanese Texas, USA Dow Germany & Canada DuPont Kentucky, USA GE Plastics Indiana, USA Severn Trent UK UCB S. Carolina, USA IMC Michigan, USA Hanford Nuclear Washington, USA Dow Equate Kuwait Caribbean Nitrogen Trinidad & Tobago Chevron Phillips USA / Saudi Arabia Pittsburgh Paints Group, PPG USA MEW Kuwait Nova Chemical Alberta, Canada Peru LNG - Peru

28 28 Questions?