Spark arrestor type C

Transcription

1 Spark arrestor type C Spark arrestors of type C are especially designed for applications in exhaust systems with high demands regarding explosion risk. The spark arrestors are to be mounted in the flues where they remove sparks or other particles from the gas stream. Its operation is based on the centrifugal principle, a number of fixed blades make the gas stream rotate, swinging the particles against the outer wall where they are collected in the so-called spark collector. The spark arrestors are tested according to PTB directives and are certified by DNV, GL and others. Virtually all types of spark arrestors are available from stock. Mounting The spark arrestors may be mounted in any position, considering of course the indicated direction of flow. Operation is optimal when the spark collector is placed underneath the horizontal axis. Optionally, up to NB100 spark arrestors are available with flanges, weld ends or slip on with clamping brackets. Quality and safety Our manufacturing process from design to delivery is in conformity with the ISO 9001:2000 standard, for which we have been certified. Spark arrestors are built-in components, therefore no CE marking applies. However in the description of your final product you will have to indicate any potential dangers, for example risk of burns. Therefore we have put a label on your silencer in advance. Note! For proper operation, regular cleaning is necessary.

2 Technical specifications Recommended designed gas flow min. 20 and max. 40 m/s Pressure drop spark arrestor see Cw-values in the following chart Maximum allowable gas temperature 600 C: applies to S 235 JR G2. For other temperatures / materials please ask for our advice. Material S 235 JR G2; Stainless-steel, Corten or others are optional Preservation anticorrosive heat-resistant coating (gray): for other paint systems please ask for our advice. Insulation as the body virtually will take the temperature of the medium, in many cases lagging will be necessary. Flanges drilled according to DIN 2573 PN6. Other flange models on request Identification plate with spark arrestor type and order number Maintenance regular cleaning of spark arrestor Options radially placed inlet and/or outlet, mounting brackets Dimensions NB (nominal bore) A (mm) outer pipe B (mm) C (mm) D (mm) F weight (kg) 40 1½" 48, ½" 4 3, " 60, ½" 5 3, ½" 76, ½" 6 3,2 80 3" 88, ¾" 8 3, " 114, ¾" 12 3, " 139, ¾" 23 3, " 168, ¾" 30 2, " 219, " 44 3, " 273, " 74 3, " 323, " 99 3, " 355, ½" 126 3, " 406, ½" 144 3, " 457, ½" 180 4, " 508, ½" 214 3,54 For standard dimensions see above chart; larger or other dimensions available on request CW

3 Silentcap In our moist climate the Silentcap provides optimum protection to your engine. It protects your engine against rain, hail or snow. Moreover, our rain caps are extremely silent. The Silentcap can be very easily and quickly mounted to minimal costs, it provides maximum protection while hardly any or no maintenance is required. Because of their great demand, virtually all types are available from stock. nth a u s t s y s t e m s Mounting It is of importance that the lid can be opened fully without being obstructed. An opening that is too large causing insufficient gas speed will adversely affect its operation. Quality and safety Our manufacturing process from design to delivery is in conformity with the ISO 9001:2000 standard, for which we have been certified. Silentcaps are built-in components, therefore no CE marking applies. However you will have to indicate any potential danger, for example the risk of burns.

4 Technical specifications Fully Stainless steel Low noise Perfectly balanced Maintenance free Durable Easy installation Dimensions Model Type NB INCH A (mm) B (mm) C (mm) D (mm) RCS 40 1½" 48, RCS 50 2" 60, RCS 65 2½" 76, RCS 80 3" 88, RCS 100 4" 114, RCS 125 5" 139, RCS 150 6" 168, RCS 200 8" 219, RCS " 273, RCD " 273, RCD " 323, RCD " 355, RCD " 406, RCD " 457, RCD " 508,

5 Compensator Compensators are designed to absorb movements, for example caused by extension. Also compensators are important for reduction of vibration transfer. Vibration reduction is of major importance for optimal functioning of exhaust silencer systems. Discom has a complete program of Stainless steel compensators for exhaust systems. The program comprises two types, fitted with weld ends or rotating flanges, available are sizes from NB 40/80 to NB 500. On request also compensators fitted with welded flanges are available. Weld end and rotating type flanges are available from stock. Their construction with two layers guarantees a high level of reliability, making them less sensitive to damages. Discom compensators are characterized by their flexibility at low loads and a fully uninterrupted passage, meaning hardly any loss of pressure. Mounting The pipe ends must be in line, these compensators are not designed for misalignment correction. Torsion free mounting is also of importance. Note! Lateral loads will limit axial movements (see graph). Quality and safety Our manufacturing process from design to delivery is in conformity with the ISO 9001:2000 standard, for which we have been certified. Our compensators are built-in components, therefore no CE marking applies. However in the description of your final product you will have to indicate any potential dangers, for example risk of burns.

6 Technical specifications Material Bellow 2 layers of Stainless steel (321) Weld ends/flanges S235 JR G2, other materials on request Max. allowable gas temperature 550 Design pressure 0.5 bar Flanges Drilled according to DIN 2573 PN 6 standard Other flange types on request Dimensions Type A (mm) B (mm) C (mm) D (mm) E (mm) Movements (mm) N / mm NB INCH - flange +flange +/- axial +/- lateral C axial C lateral 40 1½" 48,3 67, , " 60,3 81, , ½" 76,1 99, , " 88,9 114, , ½" 101,6 114, , " 114,3 142, , " 139,7 170, , " 168,3 201, " 193, , " 219,1 262, , " 273,0 320, " 323,9 373, , " 355,6 409, , " 406, , " 457,2 518, , " 508,0 573, Types 040, 050, 065, 090 and 175 are only available with fitted weld ends Example for calculation Compensator NB400 Max. compensator movements: Axial max. +/- 78 mm or Lateral max. +/- 12 mm Example Compensator movements: Lateral +/- 5 mm resulting in +/- 41 mm axial

7 Flanges All standard Discom silencers are fitted with flanges drilled according to the following charts. Up to NB 500 these flanges and corresponding gaskets are in general available from stock. Of course it is possible to order different flanges, however this may lead to prolonged delivery times. Technical specifications Silencer type Flange type Standard Steel NB 50 - NB 500 mild steel flange drilled acc. to DIN 2573 PN6 Steel NB 550 and higher mild steel flange drilled acc. to DIN Stainless steel stainless steel collar/alu flange DIN 2642 Stainless steel mild steel flange drilled acc. to DIN 2573 PN6

8 Flange drilled according to DIN 2573 PN6 / DIN86044 flat weld flange, material mild steel nominal ND inner A (mm) outer B (mm) thickness flange C (mm) number of holes K hole L (mm) PDC (mm) weight (kg) , , , , , , , , , , , , , , , , , , , , , , , , ,7 Larger sizes on request DIN2642 push-on flange, material mild steel (and aluminium) nominal ND inner A (mm) outer B (mm) thickness flange C (mm) number of holes K hole L (mm) PDC (mm) weight (kg) ,3 (0,8) ,8 (0,9) ,5 (1,2) ,9 (1,3) ,7 (1,6) ,8 (2, ,2 (2,8) ,8 (3,6) (22) ,7 (4,2) (22) ,8 (5,8) (25) 16 26(25) ,9 (7,9) (25) 20 26(25) ,4 (9,7)

9 Exhaust hoses In situations where large movements are necessary the application of an exhaust hose may be a solution. In many instances this is the case for 1, 2 or 3 cylinder engines where movements of the engine in relation to the exhaust system may be rather large, especially during starting or stopping. Also when mounting in line of an exhaust system in relation to the manifold would be a problem, an exhaust hose might be the answer. The Discom program includes a series of exhaust hoses which are extremely reliable and have a long life. Mounting When mounting exhaust hoses, the maximum bending radius must be considered.

10 Technical specifications Bellow parallel corrugated metal hose, material stainless steel 321 Braiding single wire braiding, material stainless steel 304 Weld ends standard S235 JR Design conditions according to ISO flexibility class 1 Optional fixed or rotating flanges, mild steel or Stainless steel weld ends Stainless steel different sizes Dimensions ND ØA (mm) L1 (mm) L2 (mm) C (mm) min. radius R (mm) max. offset M (mm) 25 33, , , , , , , , , , , , , , , , , , Different sizes on request

11 Deck penetration When exhaust pipes penetrate through decks, direct contact must be avoided to prevent transfer of heat and vibrations (noise) to the construction. This can be safely done by applying deck penetration of type DDV. For penetration through outdoor decks, an optional rain cap is available. In somewhat adapted form these penetrations can be applied to stationary situations, like buildings, as well. Our deck penetration permit free extension of the pipes and limit noise transfer to minimum values. Also temperature transfer to the construction is minimized.

12 Technical specifications Material penetration and rain cap: S235 JR spring pads: Stainless steel Dimensions NB ØA (mm) ØB (mm) C (mm) D (mm) E (mm) Ø F G 50 60, , x Ø60 x 180 o 65 76,1 139,7 6, x Ø60 x 180 o 80 88, x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 120 o , x Ø60 x 90 o , x Ø60 x 90 o , x Ø60 x 90 o , x Ø60 x 72 o , x Ø60 x 72 o , x Ø60 x 72 o , x Ø60 x 72 o , x Ø60 x 45 o 1 = Flue 2 = Rain cap (optional) 3 = Deck penetration 4 = Deck 5 = Stainless steel spring pad

13 Bulkhead penetration Discom provides a series of watertight bulkhead penetrations. They are delivered as complete sets, with no need for drilling or burning through plates. All you need to do is to burn a hole in the bulkhead, lead the pipe through and fix by welding. When leading exhaust pipes through bulkheads, direct contact must be avoided, to prevent transfer of heat and vibrations (noise) to the construction. This can be safely done by applying bulkhead penetrations of type SDV, usually available from stock in sizes from NB 050 to NB 500. In somewhat adapted form these lead-troughs can be applied to stationary situations, like buildings, as well. Our deck and bulkhead penetrations permit free extension of pipes and limit noise transfer to minimum values. By applying lagging temperature transfer to the construction is minimized as well

14 Technical specifications Material S235 JR (weld rings) Dimensions ND Ø A (mm) Ø B (mm) Ø C (mm) Ø D (mm) Ø E (mm) F Opening in bulkhead Ø (mm) 50 60, , , , , , , , , , , , , Different sizes on request Mounting Mounting bulkhead penetrations is extremely simple, all you have to do is burn a hole in the bulkhead according to the sizes on the above chart. Remove the gasket, insulation ring and rubber rings before welding! 1 = Stop collar 2 = Rubber ring 3 = Bulkhead 4 = Rubber ring 5 = Insulation ring 6 = Gasket 7 = Mounting plate 8 = Bolt + nut

15 Mounting brackets for standard silencer For a considerable part of our standard silencers, mounting brackets for easy mounting are available. The material of these mounting brackets is in accordance with the silencer to be mounted. They consists per set of 4 pieces of semi cap brackets, bolts and nuts. The cap brackets make it possible to suspend the silencers free from vibrations, using fixed suspension points (H series) and pivot points (P series).

16 Mounting The mounting brackets are easy to mount due to the clamping construction, if needed auxiliary constructions may be welded to the brackets. Dimensions Type Ø silencer (mm) A (mm) C (mm) MB x6 M12 MB x6 M12 MB x6 M12 MB x6 M12 MB x6 M12 MB x6 M12 D