Bladder-type accumulator. Type HAB. Features. Contents. RE Edition: Replaces: 50170

Transcription

1 Bladder-type accumulator Type HAB RE 0171 Edition: Replaces: 0170 Component series 6X Nominal volume liters Maimum operating pressure 30 bar Features Hydraulic accumulator according to Pressure Equipment Directive 1/68/EU Bladder material for different applications Use: Energy storage in intermittent operation systems Energy reserve for emergencies Compensation of leakage loss Impact and vibration absorption Volume compensation in case of pressure and temperature change Contents Features 1 Ordering code 2 Function, section 3 Technical data Application, mode of operation Calculation 8 Dimensions 9 Spare parts and accessories 17 Important notices 18 Safety equipment 18 Further information 19 RE 0171, edition: 16-03, Bosch Reroth AG

2 2/ HAB Bladder-type accumulator Ordering code HAB 6X / 0 G Bladder-type accumulator HAB Nominal volume 02 1 liter 1 2. liters 2. liters 6 liters 6 liters liters 2 liters 2 32 liters 32 0 liters 0 Maimum operating pressure bar ( liters) bar ( liters) Component series (60 69: unchanged installation and connection dimensions) 6X Gas filling pressure 0 0 bar 0 Port size for hydraulic fluid 1) 06 "1" "2." "" "6" "" "" "2" "32" "0" G3/ G0 G1 1/ G07 G2 G09 Type of mounting (oil port form) 07 Thread with sealing surface, radial on the inside G Gas port form 08 Gas valve for filling and test device (see page 12) 2 Bladder material 1) 09 NBR N ECO E FKM F HNBR H Tank material 1) Steel 1 Surface of the tank inside 1) 11 Steel 1 Surface of the connection side 1) 12 Steel 1 Certification (acceptance) 13 CE (PED 1/68/EU) CE Instructions for use BA 16 Further details in the plain tet, e.g. special versions * Order eample: HAB-330-6X/0G09G-2N111-CE 1) Other versions upon request. Bosch Reroth AG, RE 0171, edition: 16-03

3 Bladder-type accumulator HAB 3/ Function, section General Hydraulic accumulators are hydrostatic devices capable of storing a certain amount of energy in order to release it to the hydraulic system when needed. Fluids only possess low compressibility; however, gases are highly compressible. The working principle of all gasloaded hydraulic accumulators is based on this difference. The difference between bladder and diaphragm type accumulators lies in the type of separator element. Hydraulic accumulators essentially consist of a fluid section and a gas section with a gastight separator element. The fluid section has a connection to the hydraulic circuit. If a higher liquid pressure is applied to a specific quantity of pressurized gas, the gas volume decreases as the liquid pressure increases, with the gas pressure increasing with the liquid pressure. If the pressure of the fluid decreases, the fluid is pushed back into the hydraulic system by the epanding gas until the pressure is balanced again. Bladder-type accumulator Bladder-type accumulators consist of a seamless cylindrical pressure container (1) made of high-strength steel. An elastic bladder (2) mounted inside the container separates the accumulator into a gas side and a fluid side. Via the gas valve (), the bladder is filled with nitrogen up to the intended gas filling pressure p 0. The oil valve (3) located inside the oil port of the bladdertype accumulator closes if the pressure on the gas side is higher compared to the fluid side. This prevents the bladder from entering the oil channel and being destroyed. When the minimum operating pressure is reached, a small fluid volume (appro. % of the hydraulic accumulator's nominal volume) should remain between the bladder and the oil valve in order to prevent the bladder from hitting the valve during each epansion process. The gas valve () consists of sealing cap (.1), gas valve insert (.2), gas prefill valve body (.3), and O-ring (.). These parts can be replaced individually. The type cap (7) includes the technical data and features of the hydraulic accumulator. Symbol 6 Detail X Tank 2 Bladder 3 Oil valve Gas valve Gas valve support 6 Nut 7 Type cap 8 Cover cap 9 Protective cap of oil valve RE 0171, edition: 16-03, Bosch Reroth AG

4 / HAB Bladder-type accumulator Technical data (For applications outside these parameters, please consult us!) General Weight See table on page Design Bladder-type accumulator Installation position Bottom fluid connection socket, others upon request Type of mounting With clamping collars and console Line connection Screw-in thread Hydraulic Nominal volume V nom l Effective gas volume V eff l Maimum flow q ma l/min Maimum operating pressure p ma bar Maimum pressure fluctuation range Δp dyn bar Operating pressures and useful volume See calculation on page... 8 Hydraulic fluid Hydraulic oil according to DIN 12; other fluids on request! Hydraulic fluid temperature range (others upon request) C (NBR) (ECO) (FKM) (HNBR) Pneumatic Charging gas Nitrogen, cleanliness class.0, N 2 = vol. % Gas filling pressure p 0 bar 0 Hydraulic fluids Material Mineral oils NBR 1) ECO 2) HNBR 3) HFC NBR 1) HFD FKM ) 1) Acrylonitrile butadiene rubber 2) Epichlorohydrin rubber 3) Hydrated acrylonitrile butadiene rubber ) Fluorine rubber Bosch Reroth AG, RE 0171, edition: 16-03

5 Bladder-type accumulator HAB / Application, mode of operation Applications Various applications eist for hydro-pneumatic accumulators: Energy storage in order to save pump drive power in intermittent operation systems. Energy reserve for emergencies, e.g. upon failure of the hydraulic pump. Compensation of leakage losses. Impact and vibration absorption in case of periodic vibrations. Volume compensation in case of pressure and temperature changes. Mode of operation Fluids are almost incompressible and therefore cannot store pressure energy. Hydro-pneumatic Reroth accumulators use the compressibility of a gas for fluid storage. Eclusively use nitrogen of cleanliness class.0! N 2 = vol. % load load V 0 V 1 V 2 p 0 p 1 p 2 unload unload Calculation Pressures The following pressures are of decisive importance for the calculation of an accumulator: p 0 Gas filling pressure at room temperature and empty fluid chamber p 0 (t) Gas filling pressure at operating temperature p 0 (t ma ) Gas filling pressure at maimum operating temperature p 1 Minimum operating pressure Maimum operating pressure p 2 In order to achieve the best utilization of the accumulator volume possible as well as a long life cycle, compliance with the following values is recommended: p 0 (t ma ) ~ 0.9 p 1 (1) The highest hydraulic pressure should not eceed four times the filling pressure, as otherwise too much stress will be put on the elasticity of the bladder, resulting in too great a compression change with strong gas heating: p 2 p 0 (2) The life cycle of the accumulator bladder is the higher the smaller the difference between p 1 and p 2 is. However, the operating ratio of the maimum accumulator capacity will also be reduced accordingly. RE 0171, edition: 16-03, Bosch Reroth AG

6 6/ HAB Bladder-type accumulator Calculation Oil volume According to the pressures p 0 p 2, the gas volumes V 0 V 2 will result. In this process, V 0 simultaneously is the nominal volume of the accumulator. The available oil volume ΔV corresponds to the difference of the gas volumes V 1 and V 2 : ΔV V 1 V 2 (3) Application of calculation diagrams (see page 7 8) Available oil volume V V [l] V 2 p 0 Gas filling pressure s 2 The gas volume variable within a pressure differential is determined by the following equations: For an isothermal state change of gases, i.e. when the change of the gas cushion happens so slowly as to leave sufficient time for a complete thermal echange between the nitrogen and its environment, therefore keeping the temperature constant, the following applies: p 0 V 0 = p 1 V 1 = p 2 V 2 (.1) s V 1 1 p p [bar] p 1 p 2 Operating pressure range Isothermal ΔV real = ΔV ideal K i p 2 = 0 bar For an adiabatic state change, i.e. a quick change of the gas cushion accompanied by a temperature change of the nitrogen, the following applies: p 0 V χ 0 = p 1 V χ 1 = p 2 V χ 2 (.2) Ki p 2 = 300 bar p2 = 00 bar χ = ratio of the specific gas heats (adiabatic eponent), for nitrogen = 1. In practice, state changes rather follow adiabatic laws. Often charging is isothermal and discharge is adiabatic. Considering the equations (1) and (2), ΔV is between 0% and 70% of the nominal accumulator volume. The following applies as a guiding principle: V 0 = 1. 3 ΔV () p 1 /p 2 Calculation diagram For graphic determination, the formulas (.1) and (.2) are converted into diagrams on pages 7 and 8. Depending on the task, the available oil volume, the accumulator size or the pressures can be determined. Adiabatic ΔV real = ΔV ideal K a 0.9 Correction factor K i and K a The equations (.1) and (.2) apply to ideal gases only. The behavior of real gases, however, will show considerable variation at operating pressures above 0 bar which will have to be accounted for by correction factors. These can be taken from the following diagrams. The correction factors the ideal sampling volume V is to be multiplied with lie within a range of Ka p 2 = 0 bar p2 = 300 bar p 1 /p 2 Bosch Reroth AG, RE 0171, edition: 16-03

7 Bladder-type accumulator HAB 7/ Calculation: isothermal state changes p 0 = 1 90 bar V [l] p 0 [bar] Accumulator size [l] p 1, p 2 [bar] 300 p 0 = bar V [l] p 0 [bar] Accumulator size [l] p 1, p 2 [bar] RE 0171, edition: 16-03, Bosch Reroth AG

8 8/ HAB Bladder-type accumulator Calculation: Isothermal state changes p 0 = 1 90 bar V [l] p 0 [bar] Accumulator size [l] p 1, p 2 [bar] p 0 = bar V [l] p 0 [bar] Accumulator size [l] p 1, p 2 [bar] Bosch Reroth AG, RE 0171, edition: 16-03

9 Bladder-type accumulator HAB 9/ Dimensions (dimensions in mm) Preferred types HAB-6X Type Material no. h a b ød SW HAB1-30-6X/0G0G-2N111-BA HAB2,-30-6X/0G07G-2N111-CE HAB-30-6X/0G07G-2N111-CE HAB6-30-6X/0G07G-2N111-CE HAB-330-6X/0G09G-2N111-CE HAB-330-6X/0G09G-2N111-CE HAB X/0G09G-2N111-CE HAB X/0G09G-2N111-CE HAB X/0G09G-2N111-CE R R R R R R R R R øg øe øf Nominal volume [l] Ordering code / type h Ød a b Øe Øf Øg SW Weight [kg] 1 HAB X/...G0G... HAB1-30-6X/...G0G ±3 71.±3 G 3 / " 2. 23H HAB X/...G07G... HAB X/...G07G ±3 71.±3 G1 1 / " 2. 36H8 0 HAB-330-6X/...G07G... HAB-30-6X/...G07G ±3 71.±3 G1 1 / " 2. 36H HAB X/...G07G... HAB6-30-6X/...G07G ±3 71.±3 G1 1 / " 2. 36H8 0 HAB-330-6X/...G09G ±3 71.±3 G2" 76 H HAB-330-6X/...G09G ±3 71.±3 G2" 76 H HAB X/...G09G ±3 71.±3 G2" 76 H HAB X/...G09G ±3 71.±3 G2" 76 H HAB X/...G09G ±3 71.±3 G2" 76 H RE 0171, edition: 16-03, Bosch Reroth AG

10 / HAB Bladder-type accumulator Spare parts and accessories (dimensions in mm) HAB mounting elements 1 Clamp types Material number Accumulator size Clamp Clamp Clamp Clamp Console Rubber support ring Clamp 2 Console 3 Rubber support ring 2 Console and rubber support ring Console (material number: ) Rubber support ring (material number: ) 3000 Nm ø ø Bosch Reroth AG, RE 0171, edition: 16-03

11 E 9 E S S H H C C M Bladder-type accumulator HAB 11/ Spare parts and accessories: Mounting clamps (dimensions in mm) Type F1 Type F2 D M F ry F a F r D A A K L B L B 9 Clamp types Dimensions A B C D E H K L M S Material number Clamp 1-1 F M Clamp F M Clamp F M Clamp F M RE 0171, edition: 16-03, Bosch Reroth AG

12 12/ HAB Bladder-type accumulator Spare parts and accessories: filling and test device (dimensions in mm) Supplemental parts Material number (separate order) Pressure gauge bar R Pressure gauge bar Pressure gauge bar Transition socket F GB USA Measurement case Material number for bladder-type accumulator (HAB) Case (without contents) R Filling and test valve HAB Pressure gauge 0 to 20 bar Hose l = 2. m 1307 D with transition socket for bladder and diaphragm accumulator (HAB/HAD) Components as above plus filling and test valve HAD Hose l = m with transition socket KR J RUS D Dimensions of filling and test valve 1 valve body with check valve, drain valve, pressure gauge connection and gas hose connection. D 1 2 W / in M1 1. SW psi bar Reroth 0 3 l = 2. m SW32 Ø0 SAE 7/8 in -1 UNF 1 Spare part, material number Adapter see pages 1/1 Bosch Reroth AG, RE 0171, edition: 16-03

13 Bladder-type accumulator HAB 13/ Spare parts and accessories: adapter for nitrogen bottle to cap nut (dimensions in mm) Material number: Material number: Material number: R W /1 in 37 SW32 W /1 in W 23 1/1 in 2 SW32 W /1 in M SW32 W2.32 1/1 in Material number: Material number: R Material number: R G /8-ISO 228 SW32 W /1 in W 22 1/1 in SW32 W /1 in W21.8 1/1 in 79 SW32 W2.32 1/1 in Material number: Material number: Material number: R W 2.1 1/1 in 81 SW32 W /1 in G 3/-ISO 228 SW36 W /1 in G/8-ISO SW32 W /1 in RE 0171, edition: 16-03, Bosch Reroth AG

14 1/ HAB Bladder-type accumulator Spare parts and accessories: adapter for nitrogen bottle to cap nut (dimensions in mm) Country Brazil Bulgaria China France Greece United Kingdom India Italy Japan Canada North Korea South Korea Malaysia Meico Romania Russia Spain Saudi Arabia Singapore Taiwan Turkey USA Material number R R R R Other countries upon request Spare parts and accessories: accumulator adapter for accumulator shut-off blocks type ABZSS (dimensions in mm [inches]) Please select the matching type according to data sheet [0.7] 2, [0.] O1 D M ØD2 S H2 H1 O Accumulator shut-off block ABZSS 08 ABZSS ABZSS 28 [1.] Accumulator type Bladder-type accumulator Data sheet ); 1. 2) Accumulator DN ); 2 2) Accumulator adapter S 1) S 2) S12 1) S7 2) S13 1) S9 2) D G3/A G1 1/A G2A H1 H2 M O O1 S 1. [0.61] [ ] 37 [1.6] 3 [1.69] 16. [0.6] 1) [0.68] 2) [ ]. [0.81] 1) [0.73] 2) [ ] ØD [1.7] 1) 3.0 [1.37] 2) SW1 [1.61A/F] 1) SW36 [1.1A/F] 2) SW6 [1.81A/F] SW6 [2.A/F] Bosch Reroth AG, RE 0171, edition: 16-03

15 Bladder-type accumulator HAB 1/ Spare parts and accessories: accumulator adapter for accumulator shut-off blocks type ABZSS (dimensions in mm) Adapter to metric thread (HAB.. 1X to HAB.. X and 6X) D2 ød R2 L2 H SW D1 ød3 Nominal volume [l] According to ISO 228 According to ISO 228 Dimensions [mm] Material number adapter Order number complete with seal ring R2 D2 M A [Nm] D1 M A [Nm] H L2 ØD3 ØD SW 1 G3/ M R G1/1 0 + M R G M R Adapter for reduction of pipe connection ød2 D R2 H L2 SW D1 ød3 Nominal volume [l] According to ISO 228 According to ISO 228 Dimensions [mm] Material number adapter Order number complete with seal ring R2 D2 M A [Nm] D1 M A [Nm] H L2 ØD3 ØD SW 1 G3/ G3/ R G1/1 0 + G1/ R G1/1 0 + G3/ R G G1/ R G G3/ R G G G G1 1/ R RE 0171, edition: 16-03, Bosch Reroth AG

16 16/ HAB Bladder-type accumulator Spare parts and accessories (dimensions in mm) Pressure monitoring Adapter for pressure gauge, material number Adapter G1/ ISO deep Pressure gauge connection 7/8-1UNF Gas valve Spare part kit for gas valve Components Material number R Quantity 1 Protective cap 1 2 Sealing cap series Valve insert series 60 1 Gas valve series 60 1 O-ring 1 6 Nut Bosch Reroth AG, RE 0171, edition: 16-03

17 Bladder-type accumulator HAB 17/ Spare parts (dimensions in mm) Seal kit (position 1 ) Accumulator size Material number NBR, HNBR, ECO Material number FKM 1L R L R L R R /8 1 UNF-1A 1/2 UNF-2B Ø (ISO 70 : 8V1) Accumulator 30 size Spare bladder with gas valve and seal kit Holding ring Oil valve kit consisting of Material number Material number holding ring and oil valve NBR ECO FKM HNBR NBR, HNBR, FKM ECO 1 l R R R R l R R R R l R R R R R R l R R R R R l R90137 R R R R R R l R90137 R R R R R l R R R R R l R R R R R R R l R R R R R R RE 0171, edition: 16-03, Bosch Reroth AG

18 18/ HAB Bladder-type accumulator Important notices Intended use Reroth bladder-type accumulators type HAB..-6X are intended for the set-up of hydraulic drive systems in stationary mechanical engineering and plant construction. In mobile applications or applications in which acceleration forces are applied to the bladder-type accumulator during intended use, its use is permitted only following release by the competent Reroth product manager. Please contact technical sales for this. Reroth bladder-type accumulators type HAB..-6X are not intended for private use. Project planning information Bladder-type accumulators have to be safely and permanently fastened to the machine or system using mounting elements. The fastening is intended to keep the oil port tension-free. Particularly, no tension forces or static or dynamic inertia forces should be applied to the oil port. Thermal epansion of the supporting structure and vibrations originating from the environment should be considered in the selection of suitable mounting points. Legal provisions Hydraulic accumulators are pressure vessels and subject to the application national provisions and/or regulations valid at the place of installation. In Germany, the Ordinance on Industrial Safety and Health (BetrSichV) applies. Special regulations are to be observed in shipbuilding, aircraft construction, mining, etc. Authorized persons According to Ordinance on Industrial Safety and Health (BetrSichV), only authorized persons may carry out tests. Authorized persons are such persons having obtained the required epert knowledge through professional training, eperience and recent professional activity. Safety instructions for hydraulic accumulators For the hydraulic accumulator type HAB..-6X, observe the operating instructions 0171-B. The machine end-user will have sole responsibility for compliance. General notices for hydraulic accumulators in hydraulic system can be found in ISO 13. Keep all documents included in the delivery in a safe place; they will be required by the epert in recurring tests. Safety equipment Notice: Hydraulic accumulators have to be secured against operation outside of the admissible limits according to Pressure Equipment Directive 1/68/EU. In order not to eceed the maimum operating pressure, we recommend the use of an accumulator shut-off block type ABZSS according to data sheet Bosch Reroth AG, RE 0171, edition: 16-03

19 Bladder-type accumulator HAB 19/ Further information Operating instructions valid for HAB1 HAB0 Language Operating Document number instructions German RD0171-B RA60062 English RE0171-B RA6006 French RF0171-B RA60063 Spanish RS0171-B RA6009 Italian RI0171-B RA60061 Chinese RC0171-B RA6006 Russian R-RS0171-B RA600 Norwegian R-NO0171-B RA6008 Polish R-PL0171-B RA60066 Czech R-CZ0171-B RA6006 Romanian R-RU0171-B RA60067 Hungarian RU0171-B RA6007 Portuguese RP0171-B RA60060 Swedish R-SK0171-B RA CE Declarations of Conformity In German, English, French Type Document number HAB HAB2, RA HAB HAB HAB HAB2, RA HAB HAB HAB RA HAB HAB HAB HAB Accumulator shut-off block Data sheet 0131 Selection of filters Information on available spare parts RE 0171, edition: 16-03, Bosch Reroth AG

20 / HAB Bladder-type accumulator Notes Bosch Reroth AG Hydraulics Zum Eisengießer Lohr am Main, Germany Phone +9 (0) 93 2 / 18-0 documentation@boschreroth.de This document, as well as the data, specifications and other information set forth in it, are the eclusive property of Bosch Reroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Reroth AG, RE 0171, edition: 16-03