In-Line Detonation Flame Arrester PROTEGO DA-SB. for stable detonations and deflagrations in a straight through design with shock tube, bidirectional

Transcription

1 for stable detonations and deflagrations in a straight through design with shock tube, bidirectional ROTEGO DA-SB Ø a DN Design with one or two temperature sensors DN NG c dismantling dimension for servicing (temperature sensor) Type-approved according to ATEX Directive 94/9/ EC and EN as well as other international standards. Special Features and Advantages Optimized performance from the patented shock wave guide tube effect (SWGTE) Minimum pressure loss and associated low operating and life-cycle costs The flamefilter discs can be individually replaced Low number of filters from the use of the patented shock tube (SWGTE) Connection to the protected side (only for type DA-SB-T-...) Function and Description The DA-SB in-line detonation fl ame arresters are the newest generation of fl ame arresters. On the basis of fluid dynamic, explosion dynamics calculation and decades of experience from fi eld tests, a product line was developed that offers minimum pressure loss and maximum safety. The fl ame arrester uses the shock wave guide tube effect to optimally decouple the fl ame front and shock wave. The result is a detonation arrester without a classic shock absorber; in addition the use of fl amefi lter elements is minimized. The devices are symmetrical and offer bidirectional fl ame suppression. The arrester essentially consists of two housing halves with an integrated shock tube (1) and the ROTEGO fl ame arrester (2) in the center. The fl ame arrester is modular and consists of several flamefi lter discs (3) fi rmly held in a fi lter cage. The number of fl amefi lters and their gap size depends on the arrester s conditions of use. By indicating the operating parameters such as the temperature, pressure and explosion group, and the composition of the fl uid, the optimum detonation arrester can be selected from a series of approved devices. DA-SB fl ame arresters are available for all explosion groups. The standard design is approved for an operating temperature up to + 60 C / 140 F and an absolute operating pressure up to 1.1 bar / psi. Numerous devices with special approval can be obtained for higher temperatures and pressures. b 1 Shock tube 2 Flame arrester 3 Flamefi lter discs The modular design enables individual flamefilter discs to be exchanged Cost efficient spare parts Service-friendly design Expanded range of uses for higher operating temperatures and pressures Bidirectional operation as well as any direction of flow and installation position Design Types and Specifications There are four different designs Basic in-line detonation fl ame arrester In-line detonation fl ame arrester with integrated temperature sensor* as additional protection against short time burning. In-line detonation fl ame arrester with two integrated temperature sensors* for additional protection against short time burning from both sides In-line detonation fl ame arrester with heating jacket Additional special fl ame arresters upon request *Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2) DA-SB- DA-SB- T DA-SB- T - B DA-SB- H - All rights and alterations reserved acc. ISO

2 Table 1: Dimensions Dimensions in mm / inches To select the nominal size (DN), use the fl ow capacity charts on the following pages Series 1 (standard) * DN 50/2" 80/3" 100/4" 150/6" 200/8" 250/10" 300/12" 350/14" 400/16" 500/20" 600/24" NG 150/6" 150/6" 200/8" 300/12" 400/16" 500/20" 600/24" 700/28" 800/32" 1000/40" 1200/48" a b c 285 / / / / / / / / / / / / / / / / / / / / / / / / / / / / Series 2 (special design for improved fl ow capacity) * DN 50/2" 80/3" 100/4" 150/6" 200/8" 250/10" 300/12" 350/14" 400/16" 500/20" 600/20" NG 200/8" 200/8" 300/12" 400/16" 500/20" 600/24" 700/28" 800/32" 1000/40" 1200/48" 1400/52" a b c 340 / / / / / / / / / / / / / / / / / / / / / / / / / / / / / Series 3 (special design for superior fl ow capacity) * DN 50/2" 80/3" 100/4" 150/6" 200/8" 250/10" 300/12" 350/14" 400/16" 500/20" 600/20" NG 300/12" 300/12" 400/16" 500/20" 600/24" 700/28" 800/32" 1000/40" 1200/48" 1400/52" 1600/56" a b c 445 / / / / / / / / / / * special sizes up to DN 1000/40, NG 2000/80 available 780 / / / / / / / / / / / / / / / / / / / / / Table 2: Selection of the explosion group MESG Expl. Gr. (IEC/CEN) Gas Group (NEC/NFA) > 0,90 mm IIA D 0,65 mm IIB3 C < 0,50 mm IIC B Special approvals upon request für Sicherheit und Umweltschutz 19

3 for stable detonations and deflagrations in a straight through design with shock tube, bidirectional ROTEGO DA-SB Table 3: Selection of max. operating pressure (bar / psi) NG 150/6 150/6 200/8 300/12 400/16 500/20 600/24 700/28 800/ / /48 Expl. Gr. IIA IIB3 IIC 1.8 / / / / 26.1 * * * = maximum allowable operating pressure in bar / psi (absolute), higher operating pressure upon request * capacity charts upon request Table 4: Selection of max. operating temperature ( C / F) 60 / / / / / / 482 (Standard) X0 * X1 * X2 * X3 * X4 * *upon request Table 5: Material selection for housing Design A B C Housing Heating jacket (DA-SB-H-(T)-...) Carbon Steel Carbon Steel Stainless Steel Stainless Steel Gasket WS 3822 * TFE TFE Flame arrester A B, C D Special materials upon request. Hastelloy Stainless Steel * for devices exposed to elevated temperatures above 150 C / 302 F (X2), gaskets made of TFE. The housing can also be delivered in Carbon Steel with an ECTFE coating. Table 6: Material combinations of the flame arrester Design A B C D Flamefi lter cage Carbon Steel Stainless Steel Stainless Steel Hastelloy Flamefi lter * Stainless steel Stainless Steel Hastelloy Hastelloy Spacer Stainless steel Stainless Steel Hastelloy Hastelloy Special materials upon request. *the fl amefi lters are also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used. Table 7: Flange connection type DIN 2501, Form C, N 16; from DN 200 N10 ANSI 150 lbs RFSF DIN ANSI other types upon request All rights and alterations reserved acc. ISO

4 Type Heating jacket Temperature sensor on one side Temperature sensor on both sides Nominal width (NG) Nominal size (DN) Explosion group Max. operating pressure bar /psi (absolute) Max. operating temperature ( C/ F) Material (housing) DA-SB / / Material (flame arrester) Flange connection type Design Tab. 1 Tab. 1 Tab. 2 Tab. 3 Tab. 4 Tab. 5 Tab. 6 Tab. 7 Order example DA-SB H T B 800 / 400 IIB3 1,4/ (std) B B DIN Materials and chemical resistance: Technical Information upon request DA-SB-IIA, series 1 The fl ow capacity charts have been determined with a calibrated and TÜV certifi ed fl ow capacity test rig. Volume fl ow V. in [m³/h] and SCFH refer to the Technical Standard ISO 6358 (20 C, 1bar). Conversion to other densities and temperatures refer to Technical Fundamentals. for safety and environment 21

5 ROTEGO DA-SB DA-SB-IIA, series 2 * DN 600 in preparation DA-SB-IIA, series 3 * DN 500 and DN 600 in preparation The fl ow capacity charts have been determined with a calibrated and TÜV certifi ed fl ow capacity test rig. Volume fl ow V. in [m³/h] and SCFH refer to the Technical Standard ISO 6358 (20 C, 1bar). Conversion to other densities and temperatures refer to Technical Fundamentals. All rights and alterations reserved acc. ISO

6 ROTEGO DA-SB DA-SB-IIB3, series 1 DA-SB-IIB3, series 2 * DN 600 in preparation for safety and environment 23

7 ROTEGO DA-SB DA-SB-IIB3, series 3 * DN 500 and DN 600 in preparation DA-SB-IIC, series 1 The fl ow capacity charts have been determined with a calibrated and TÜV certifi ed fl ow capacity test rig. Volume fl ow V. in [m³/h] and SCFH refer to the Technical Standard ISO 6358 (20 C, 1bar). Conversion to other densities and temperatures refer to Technical Fundamentals. All rights and alterations reserved acc. ISO

8 ROTEGO DA-SB DA-SB-IIC, series 2 DA-SB-IIC, series 3 for safety and environment 25