YY/T 0084.1-2009Strength calculation and relevant regulations of primary pressure components of cylindrical pressure steam sterilizer (English PDF)

Foreword

YY/T 0084 is divided into two parts.

--- Round Pressure Steam Sterilizer main pressure parts strength calculation and the relevant regulations;

--- Rectangular Pressure Steam Sterilizer main pressure parts strength calculation and the relevant regulations. This section YY/T Section 10084 of.

This section instead of YY/T 0084.1-1992 "Round Pressure Steam Sterilizer main pressure parts strength calculation and the relevant provisions." Section compared with YY/T 0084.1-1992 The main changes are as follows.

--- All the symbols in this section, the terms, definitions, formulas, selection of materials according to the provisions of GB 150-1998, in addition to special Special type flange strength calculations.

--- Main pressure computing element.

1) The main pressure components. cylinder, stiffening ring, head, cover, flange calculations using the appropriate strength GB 150-1998 Calculation formula to calculate the sterilizer remains common structure;

A unified formula by calculating the thickness delta, without design thickness delta '.

2) on the cylinder head, computing cover, in particular, the strength of the external pressure calculation chart uses specified in GB 150-1998 Determining deleting the original standard, "Ram formula" and so on;

3) to retain the original standard loose flange, integral flange and any type flange type. And the figures are calculated using formulas symbol

GB 150-1998 standard (except for special types of flange);

4) retention patterns and formulas YY/T 0084.1-1992 commonly used in sterilization of the flange to retain the calculation of the coupling member formula;

5) safety accessories sterilizer and its relevant regulations, legal standards promulgated by various safety accessories new execution; according to GB 4793.4- 2001 and "Pressure Vessel Safety Technology Supervision" provides the development of security requirements.

6) Delete YY/T 0084.1-1992 "5 and the welding seam coefficient", "6 qualifications and responsibilities." Relevant regulations and strength calculation Set, is described in Chapter 9.

1 Scope

YY/T 0084 provisions of this part of the single, double round pressure steam sterilizer (hereinafter referred to as sterilization) main pressure parts strength Calculation and the relevant provisions of this Part were not specified by the corresponding standards.

This section applies to the design pressure is less than 0.4MPa circular pressure steam sterilizer.

This section also applies to circular bearing negative pressure steam sterilizer.

2 Normative references

The following documents contain provisions which, through reference YY/T 0084 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB 150-1998 Steel Pressure Vessels

GB 4793.4-2001 measurement, control and laboratory use electrical safety laboratory equipment used in the processing of medical materials autoclave Particular requirements (IEC 61010-2-041:1995, IDT)

JB/T 4755-2006 Copper Pressure Vessels JB/B4734-2002 welding aluminum container

YY 0154 pressure steam sterilization equipment with a spring-loaded safety valve

YY/T 0159 Pressure Steam sterilization equipment with trap Pressure Vessel Safety Technology Supervision 1999

3 Terms and Definitions

The following terms and definitions apply YY/T 0084 of this section.