Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 20663-2017 English PDF

US$999.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20663-2017: Accumulators
Status: Valid

GB/T 20663: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 20663-2017999 Add to Cart 7 days Accumulators Valid
GB/T 20663-2006RFQ ASK 5 days Bladder type accumulators [including MODIFICATION 1] Obsolete

Similar standards

GB/T 20801.3   GB/T 20801.4   GB/T 20801.2   GB/T 45439   GB/T 13077   

Basic data

Standard ID: GB/T 20663-2017 (GB/T20663-2017)
Description (Translated English): Accumulators
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J74
Classification of International Standard: 23.020.30
Word Count Estimation: 50,544
Date of Issue: 2017-10-14
Date of Implementation: 2018-04-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 20663-2017: Accumulators

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Accumulators ICS 23.020.30 J74 National Standards of People's Republic of China Replacing GB/T 20663-2006 energy storage pressure vessel Released on.2017-10-14 2018-04-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued by the Standardization Administration of China

table of contents

Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Structural types, representation methods and classification 3 5 material 4 6 design 7 7 Made 18 8 Performance and testing 20 9 Inspection rules 23 10 Marking, packaging, transportation 24 11 random files 25 12 Safe use of accumulators 25 Appendix A (informative appendix) Structure type and marking method of bladder accumulator 28 Appendix B (informative appendix) Structure type and marking method of threaded diaphragm accumulator 30 Appendix C (Normative Appendix) Technical Conditions for Welded Diaphragm Accumulators 32 Appendix D (informative appendix) Structure type and marking method of piston accumulator 38 Appendix E (Informative Appendix) Capsule and Diaphragm Technical Conditions 39 Appendix F (Normative Appendix) Accumulator Fatigue Test Requirements 43 Appendix G (Normative Appendix) Design Fatigue Curve 45 Appendix H (informative appendix) Accumulator discharge flow test device 47

foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 20663-2006 "Pressure Vessels for Bladder Energy Storage". Compared with GB/T 20663-2006, the main technical changes Converted as follows. --- Increased diaphragm accumulator, piston accumulator (see 1.2, 1.3, 5.4, 5.5, 6.2.5, 6.2.6, 6.9, 6.10, etc.); --- Modified the general parameters of the accumulator (see 1.3, Table 1); ---The shell has been increased with materials such as 34CrMo4, 06Cr19Ni10, 022Cr17Ni12Mo2 (see 5.2.1, Table 2); --- Modified the mechanical performance indicators of the material (see Table 2, Table 3); --- Increase the allowable stress and lateral expansion index of the material (see Table 2, Table 3); --- Modify the design safety factor (see 6.3); --- Added thread design calculation (see 6.8, 6.9.4, 6.10.3); --- Increase the calculation of bladder accumulator oil valve and support ring structure (see 6.11); --- Added requirements for safe use of accumulators (see Chapter 12); --- Added the structural type and marking method of the threaded diaphragm accumulator (see Appendix B); --- Added the technical conditions for welded diaphragm accumulators (see Appendix C); --- Added the structural type and marking method of the piston accumulator (see Appendix D); --- Added technical conditions for capsules and diaphragms (see Appendix E); --- Increased accumulator fatigue test requirements (see Appendix F); --- Increased design fatigue curve (see Appendix G); --- Increased accumulator discharge flow test device (see Appendix H). This standard was proposed and managed by the National Standardization Technical Committee for Boilers and Pressure Vessels (SAC/TC262). This standard is mainly drafted by. Shanghai Lanbin Petrochemical Equipment Co., Ltd., Shanghai Special Equipment Supervision and Inspection Technology Research Institute, National National Petroleum Drilling and Refining Equipment Quality Supervision and Inspection Center, Zhejiang University of Technology, Chengdu Tianren Pressure Vessel Factory, Ningbo Special Equipment Inspection and Research Institute Research Institute, Fenghua Asahi Hydraulic Co., Ltd., Tianjin Aoqi Accumulator Co., Ltd., Japan Accumulator Co., Ltd., China Special Equipment Testing Research Institute, Dalian Boiler and Pressure Vessel Inspection Research Institute, Shanghai Lanhai Kechuang Testing Co., Ltd. The main drafters of this standard. Shi Jiqing, Chen Bingbing, Huang Guangde, Niu Yaping, Xue Xiaolong, Chen Xiaoxiang, Liu Ruichuan, Li Xiaopeng, Xia Hai, Chen Zhanyang, Zhou Wenxue, Wang Jibing, Song Wenming, Chen Zhiwei, Dai Xingtao. The previous releases of the standards replaced by this standard are as follows. ---GB/T 20663-2006. energy storage pressure vessel

1 Scope

1.1 This standard specifies the material, design, Manufacturing, performance and testing, inspection rules, marking, packaging, transportation and safe use requirements. 1.2 The accumulator specified in this standard refers to the container that utilizes the compressibility of the gas to pressurize the liquid at the liquid end by the gas pressure in the air cavity. Product types include. --- Bladder accumulator; --- Diaphragm accumulator; ---Piston accumulator. 1.3 The possible failure modes of accumulators specified in this standard are. --- ductile failure; --- Brittle fracture; --- Fatigue damage; ---leakage. 1.4 This standard is applicable to accumulators within the parameter range in Table 1, where the working medium at the liquid end is petroleum-based hydraulic oil or emulsion, and the air cavity is filled with nitrogen. 1.5 This standard does not apply to accumulators made of non-metallic materials.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 150.1-2011 Pressure Vessels Part 1.General Requirements GB/T 150.2-2011 Pressure Vessels Part 2.Materials GB/T 150.3-2011 Pressure Vessels Part 3.Design GB/T 150.4-2011 Pressure Vessels Part 4.Manufacturing, Inspection and Acceptance GB/T 196 Basic dimensions of ordinary thread GB/T 197 Common thread tolerances GB/T 223 (all parts) Methods for chemical analysis of iron, steel and alloys GB/T 228.1 Tensile tests on metallic materials - Part 1.Test methods at room temperature GB/T 229 Charpy pendulum impact test method for metallic materials GB/T 231.1 Brinell hardness test for metallic materials - Part 1.Test method GB/T 232 Metal material bending test method GB/T 246 Metal pipe flattening test method GB/T 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber GB/T 531.1 Test method for indentation hardness of vulcanized rubber or thermoplastic rubber - Part 1.Shore durometer method (Shore hardness) GB/T 699 High Quality Carbon Structural Steel GB/T 1220 stainless steel rod GB/T 1682 Determination of low temperature brittleness of vulcanized rubber single sample method GB/T 1690 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber GB/T 3077 Alloy structural steel GB/T 5777-2008 Ultrasonic testing methods for seamless steel tubes GB/T 6479 Seamless Steel Tubes for High Pressure Fertilizer Equipment GB/T 7755 Determination of air permeability of vulcanized rubber or thermoplastic rubber GB/T 7759.1 Determination of compression set of vulcanized rubber or thermoplastic rubber - Part 1.At room temperature and high temperature GB/T 9251-2011 Hydrostatic test method for gas cylinders GB/T 9252 Gas cylinder fatigue test method GB/T 11211 Determination of Adhesion Strength of Vulcanized Rubber or Thermoplastic Rubber to Metal Two-plate Method GB/T 13296 Boiler and Heat Exchanger Stainless Steel Seamless Tubes GB/T 13934 Determination of flex cracking and crack growth of vulcanized rubber or thermoplastic rubber (Demesia type) GB/T 14976 Stainless Steel Seamless Steel Tubes for Fluid Transmission GB/T 15385 Hydrostatic Burst Test Method for Gas Cylinders GB/T 18248 Seamless Steel Tubes for Gas Cylinders GB/T 22085.1 Guidelines for quality classification of defects in electron beam and laser welded joints - Part 1.Steel JB/T 4711 Pressure vessel coating and transport packaging JB4732-1995 Steel Pressure Vessel --- Analysis and Design Standard (confirmed in.2005) NB/T 47008 Carbon steel and alloy steel forgings for pressure equipment NB/T 47009 Alloy steel forgings for low temperature pressure equipment NB/T 47010 Stainless steel and heat-resistant steel forgings for pressure equipment NB/T 47013.1 Non-destructive testing of pressure equipment Part 1.General requirements NB/T 47013.4 Non-destructive testing of pressure equipment - Part 4.Magnetic particle testing NB/T 47013.5 Non-destructive testing of pressure equipment - Part 5.Penetrant testing NB/T 47013.7 Non-destructive testing of pressure equipment - Part 7.Visual testing NB/T 47013.8 Non-destructive testing of pressure equipment - Part 8.Leakage testing NB/T 47014 Welding procedure qualification for pressure equipment TSG21 Safety Technical Supervision Regulations for Stationary Pressure Vessels

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 It is mainly composed of a shell and a capsule, and the liquid and gas are separated by a flexible capsule. 3.2 It consists of upper and lower shells connected by welding, self-thread or external ring lock nut, and the liquid and gas are separated by a flexible rubber diaphragm. 3.3 Composed of a cylindrical barrel, a piston and an end cap, liquid and gas are separated by a piston seal assembly. 3.4 operating pressure Under normal operating conditions, the highest possible pressure of the accumulator. 3.5 Inflatable pressure charginggaspressure The gas pressure in the accumulator when there is no pressure at the liquid end. 3.6 Nominal volume nominalcapacity The volume of the air cavity of the accumulator in the inflated state. 3.7 Design pressure designpressure The set maximum pressure of the accumulator, together with the corresponding design temperature, shall be used as the design load condition, and its value shall not be lower than the working pressure. 3.8 design temperature design temperature Under normal working conditions of the accumulator, set the metal temperature of the element (the average temperature along the metal section of the element). design temperature and The design pressure is taken together as the design loading condition. 3.9 Discharge volume dischargevolume After pressurized accumulator, when its pressure changes between the highest operating pressure and the lowest operating pressure of the circuit, the volume of hydraulic oil in the accumulator changing value. 3.10 Discharge flow dischargeflow The discharge volume of hydraulic oil per unit time. 3.11 batch batch Use the same type of container, the same design conditions, have the same nominal diameter, wall thickness, use the same furnace number material, the same manufacturing method, according to the same A heat treatment specification defines the number of accumulator shells to be heat treated. 3.12 Styling productsstandardproducts According to the provisions of this standard, material selection, design, manufacture and acceptance, if the type test is qualified, it can be mass-produced serialized products. 4 Structural type, representation method and classification 4.1 Structural type and representation method 4.1.1 The structural types of the bladder accumulator are divided into A type, AB type, and B type. For the structural type, component names and product representation methods, please refer to the appended Record A. 4.1.2 The structural types of threaded diaphragm accumulators are divided into Type A, Type B and Type C, and their structures, parts names and product representation methods See Appendix B; welded diaphragm accumulators are divided into Type A and Type B, and see Appendix C for their structure, component names and product representation. 4.1.3 The structural types of piston accumulators are divided into Type A and Type B. Please refer to Appendix D for their structure, component names and product representation methods. 4.2 Classification 4.2.1 The design pressure of the accumulator is divided into 10 grades (in MPa). 6.3, 10, 16, 20, 25, 31.5, 40, 50, 63, 80.when set When the gauge pressure is between two adjacent pressure levels, it shall be determined through negotiation between the supplier and the purchaser. 4.2.2 The nominal volume of the accumulator is divided into 24 grades (unit. L). 0.25, 0.40, 0.63, 1.0, 1.6, 2.5, 4.0, 6.3, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160,.200, 250, 315, 350.When the required volume is between two adjacent volume levels, It should be determined through consultation between the supplier and the buyer.

5 materials

5.1 General 5.1.1 The materials used for the main pressure components of the accumulator (shell, end cover, valve body, support ring, threaded diaphragm accumulator annular lock nut) shall comply with this specification. stipulations, and should consider the service conditions of the accumulator (such as temperature, pressure, medium characteristics, etc.), manufacturing process and economic rationality. 5.1.2 The materials used for the main pressure components of the accumulator shall have a quality certificate; when the accumulator manufacturer obtains materials from the material manufacturer, The original quality certificate provided by the material manufacturer shall be obtained; when the accumulator manufacturer obtains materials from a non-material manufacturer, it shall obtain the The original quality certificate provided by the material manufacturer or a copy of the inspection official seal of the material supplier and the seal of the person in charge; The responsible person shall be responsible for the authenticity and consistency of the obtained materials and quality certificates. 5.1.3 The use of foreign brands and new materials shall comply with the provisions of TSG21. 5.2 Housing 5.2.1 The casing of bladder accumulator and cylinder of piston accumulator shall generally be made of seamless steel pipe, and the inner diameter of the piston shall be less than or equal to 100mm. The barrel of the type accumulator can also be manufactured by hot-rolled round steel or forging, and the axial length of the barrel should be approximately parallel to the metal deformation line of the blank. Steel pipes, round steel or forgings that have not been subjected to ultrasonic testing one by one are used to process and manufacture cylinders, and the accumulator manufacturer shall conduct ultrasonic testing one by one. The test method shall comply with the provisions of GB/T 5777-2008; the acceptance level of high-quality carbon steel pipes and cold-rolled (drawn) alloy steel pipes shall meet the requirements of L2 The acceptance level of hot-rolled alloy steel pipes, round steel or forgings machined and manufactured cylinders shall be determined through negotiation between the supplier and the purchaser. shell force The mechanical properties and allowable stress are shown in Table 2 (the mechanical properties and allowable stress of the round steel or forging machined cylinder should meet the requirements of Table 3). 6.2.2 Main contents of the general design drawing In addition to meeting the requirements of TSG21, the general design drawing shall also include the following contents. a) design thickness and nominal thickness; b) Pressure fluctuation range, that is, the difference between the maximum working pressure p2 of the hydraulic circuit and the minimum working pressure p1 of the hydraulic circuit; c) Fatigue test regulations, for those that do not need to be performed, "not required" should be indicated. 6.2.3 Regulations on the same design drawing number If the following conditions are met, the same design drawing number can be used for design. a) The accumulators are of the same type; b) the container class is the same; c) The design parameters are the same and the types of materials are the same; d) Only the length is different, and the length of the cylindrical part is not less than 2.0(Doδ)0.5, and the other dimensions and shapes are the same. 6.2.4 Bladder accumulator 6.2.4.1 For bladder accumulators that meet the following conditions at the same time, the fatigue test shall be carried out in accordance with the requirements of F.1 Class I fatigue test; quotient, or according to F.2 Type II fatigue test requirements. a) The design pressure is not greater than 35MPa; b) The volume is not greater than 250L; c) The outer diameter is not greater than 426mm; d) During normal operation, the pressure fluctuation range is not greater than 0.5 times the design pressure. 6.2.4.2 For the bladder accumulator other than 6.2.4.1, it shall meet one of the following requirements. a) Carry out fatigue analysis according to JB4732-1995, and provide the fatigue test requirements in the design drawings; b) Carry out the fatigue test according to the requirements of F.2 Type II fatigue test. 6.2.5 Diaphragm accumulator 6.2.5.1 For the threaded diaphragm accumulators meeting the following conditions at the same time, the fatigue test shall be carried out in accordance with the requirements of F.1 Class I fatigue test; Negotiation between the supplier and the purchaser can also be carried out according to the requirements of F.2 Type II fatigue test. a) The design pressure is not greater than 35MPa; b) During normal operation, the pressure fluctuation range is not greater than 0.5 times the design pressure. 6.2.5.2 For the threaded diaphragm accumulator other than 6.2.5.1, it shall meet one of the following requirements. a) Carry out fatigue analysis according to JB4732-1995, and provide the fatigue test requirements in the design drawings; b) Carry out the fatigue test according to the requirements of F.2 Type II fatigue test. 6.2.5.3 See Appendix C for strength calculation and type test requirements of welded diaphragm accumulators. 6.2.6 Piston accumulator 6.2.6.1 For piston accumulators that meet the following conditions at the same time, the fatigue test shall be carried out in accordance with the requirements of F.1 Class I fatigue test; It can also be carried out according to F.2 Type II fatigue test requirements. a) The design pressure is not greater than 35MPa; b) The volume is not greater than 250L; c) The inner diameter is not greater than 350mm; d) During normal operation, the pressure fluctuation range is not greater than 0.5 times the design pressure. 6.2.6.2 For piston accumulators other than 6.2.6.1, one of the following requirements shall be met. Shell manufacturing regulations should meet the requirements of Appendix C. 7.1.4 The material of the accumulator shell (including cylinder and end cover) shall retain the traceability mark during the manufacturing process, and the expression of the mark shall be determined by the manufacturing order. Bit regulations or according to drawing requirements. 7.2 Appearance quality 7.2.1 The inner and outer surfaces of the shell of the bladder accumulator shall be treated, the quality shall reach Sa2.5, the transition between the shell and the head shall be smooth, and there shall be no cracks, Folds, wrinkles, heavy skins, inclusions, grooves and mechanical damage and other defects affecting strength and corrosion resistance. Piston type, diaphragm type accumulator meter Surface roughness should meet the requirements of the accumulator. 7.2.2 The surface of the exposed parts of the accumulator should be treated with anti-corrosion coating or other methods. In addition to stainless steel materials, anti-corrosion materials It should not only meet the requirements of JB/T 4711, but also meet the requirements of design documents. 7.3 Manufacturing tolerances 7.3.1 The outer diameter, roundness ......
Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20663-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20663-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20663-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20663-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20663-2017?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20663-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.