CGA-G-6.5-2007.pdf
《CGA-G-6.5-2007.pdf》由会员分享,可在线阅读,更多相关《CGA-G-6.5-2007.pdf(16页珍藏版)》请在三一文库上搜索。
1、 CGA G-6.52007 STANDARD FOR SMALL, STATIONARY, INSULATED CARBON DIOXIDE SUPPLY SYSTEMS THIRD EDITION COMPRESSED GAS ASSOCIATION, INC. 4221 Walney Road, 5th Floor Chantilly, VA 20151 Phone: 703-788-2700 FAX: 703-961-1831 E-mail: PAGE ii COMPRESSED GAS ASSOCIATION, INC. CGA G-6.52007 PLEASE NOTE: The
2、 information contained in this document was obtained from sources believed to be reliable and is based on technical information and experience currently available from members of the Compressed Gas Association, Inc. and others. However, the Association or its members, jointly or severally, make no g
3、uarantee of the results and assume no liability or responsibility in connection with the information or suggestions herein contained. Moreover, it should not be assumed that every acceptable commodity grade, test or safety procedure or method, precaution, equipment or device is contained within, or
4、that abnormal or unusual circumstances may not warrant or suggest further requirements or additional procedure. This document is subject to periodic review, and users are cautioned to obtain the latest edition. The Associa- tion invites comments and suggestions for consideration. In connection with
5、such review, any such comments or suggestions will be fully reviewed by the Association after giving the party, upon request, a reasonable op- portunity to be heard. Proposed changes may be submitted via the Internet at our web site, . This document should not be confused with federal, state, provin
6、cial, or municipal specifications or regulations; insurance requirements; or national safety codes. While the Association recommends reference to or use of this document by government agencies and others, this document is purely voluntary and not binding. A listing of all publications, audiovisual p
7、rograms, safety and technical bulletins, and safety posters is available via the Internet at our website at . For more information contact CGA at Phone: 703-788-2700, ext. 799. E-mail: . Work Item 06-027 Carbon Dioxide Committee NOTETechnical changes from the previous edition are underlined. THIRD E
8、DITION: 2007 SECOND EDITION: 2001 FIRST EDITION: 1992 2007 The Compressed Gas Association, Inc. All rights reserved. All materials contained in this work are protected by United States and international copyright laws. No part of this work may be reproduced or transmitted in any form or by any means
9、, electronic or mechanical including photocopying, recording, or any informa- tion storage and retrieval system without permission in writing from The Compressed Gas Association, Inc. All requests for permission to reproduce material from this work should be directed to The Compressed Gas Associatio
10、n, Inc., 4221 Walney Road, Suite 500, Chantilly VA 20151. You may not alter or remove any trademark, copyright or other notice from this work. CGA G-6.52007 COMPRESSED GAS ASSOCIATION, INC. PAGE iii Contents Page 1 Scope .1 2 Definitions.2 3 Special hazards3 3.1 General3 3.2 Dry ice blocking.3 3.3 T
11、rapped liquid3 3.4 Low temperature3 3.5 Personnel overexposure3 3.6 Overfilling containers.5 4 Physiological effects of carbon dioxide.7 4.1 General7 4.2 Effects of inhaled carbon dioxide.7 4.3 Physical effects of overexposure to carbon dioxide 7 4.4 Regulatory standard7 4.5 Safety precautions.8 4.6
12、 Rescue and first aid.8 5 Design of carbon dioxide supply systems 8 5.1 Containers.8 5.2 Pressure relief devices8 5.3 Other appurtenances.9 5.4 Piping, tubing, hoses, and fittings9 6 System installation .9 6.1 General9 6.2 Material selection.9 6.3 Assembly.9 6.4 Leak testing.10 7 Filling small, insu
13、lated carbon dioxide systems10 7.1 General10 7.2 Transfer procedure10 8 Inspection and maintenance 11 8.1 Inspection11 8.2 Maintenance11 9 References.11 Table Table 1Volume expansion upon warming of liquid carbon dioxide saturated at 200 psig (1380 kPa) for a container with a 350 psig (2410 kPa) pre
14、ssure relief device .6 Figures Figure 1Typical small, stationary, insulated carbon dioxide supply system for beverage carbonation and dispensing1 Figure 2Example of an unsafe, enclosed space4 Figure 3Example of a naturally ventilated and monitored enclosed space4 Figure 4Example of a properly monito
15、red but improperly ventilated enclosed space .5 Figure 5Example of a properly ventilated and monitored enclosed space5 Figure 6Safe filling volumes for 350 psig (2410 kPa) carbon dioxide containers6 This page is intentionally blank. CGA G-6.52007 COMPRESSED GAS ASSOCIATION, INC. PAGE 1 1 Scope The p
16、urpose of this publication is to provide a standard for small, stationary, insulated carbon dioxide systems. It is intended to assist designers, engineers, distributors, restaurant personnel, inspectors, other users, and all interested parties. This standard contains minimum requirements and recomme
17、nded practice for the design, construction, installa- tion, operation, and maintenance of small, stationary, insulated carbon dioxide systems from the fill connection to the storage container outlet connection valve. See Figure 1. These systems are primarily used for supplying carbon dioxide gas at
18、beverage dispensing sites and can also be used in greenhouses, by welding fabricators, and for other applications. Additional information on carbon dioxide is published in CGA G-6, Carbon Dioxide, and CGA AV-7, Characteristics and Safe Handling of Carbon Dioxide 1, 2.1 The system shall be designed s
19、o the container does not become liquid full at the pressure setting of the pres- sure relief device (PRD) and shall discharge to the outside of the building. While this standard is to be used as a guide for user installations, final approval of the design, equipment, ap- purtenances, and installatio
20、n rests with regulatory authorities with jurisdiction in this area. Figure 1Typical small, stationary, insulated carbon dioxide supply system for beverage carbonation and dispensing 1 References are shown by bracketed numbers and are listed in order of appearance in the reference section. -,-,- PAGE
21、 2 COMPRESSED GAS ASSOCIATION, INC. CGA G-6.52007 2 Definitions For the purposes of this publication, the following definitions apply. 2.1 Approved Something acceptable to the regulatory authorities with jurisdiction in this area. 2.2 Appurtenances All system components (excluding the container) suc
22、h as pressure relief devices, liquid level gauges, valves, pressure gauges, vaporizers, pumps, control equipment, and regulators. 2.3 Blowdown valve A manually operated valve used to depressurize lines or systems. 2.4 Capacity The amount of carbon dioxide the container will hold under equilibrium co
23、nditions at normal operating pressure and temperature when filled to its design level. 2.5 Container A pressure vessel manufactured to meet the code requirements of ASME. 2.6 Design pressure The most severe condition of coincident pressure and temperature expected in normal operation. This consid- e
24、rs the maximum allowable working pressure (MAWP), static head of the product, and the vacuum if vacuum jacketed. 2.7 Liquid carbon dioxide Carbon dioxide can exist as a liquid only at pressures between 60.4 psig and 1055.9 psig (416 kPa and 7280 kPa) and temperatures between 69.9 F and 87.9 F (56.6
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- CGA 6.5 2007
链接地址:https://www.31doc.com/p-3759116.html