JB/T 8693-2015 English PDF (JBT8693-2015)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click JB/T 8693-2015
Historical versions: JB/T 8693-2015
Preview True-PDF (Reload/Scroll if blank)

JB/T 8693-2015: Large and medium scale air separation plants
JB/T 8693-2015
JB
MECHANICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.20
J 76
Filing No.: 51510-2015
Replacing JB/T 8693-1998
Large and medium scale air separation plants
ISSUED ON: OCTOBER 10, 2015
IMPLEMENTED ON: MARCH 01, 2016
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 4 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 8 
4 Product classification and model ... 9 
5 Technical requirements ... 10 
5.1 Engineering conditions ... 10 
5.2 Basic requirements... 13 
5.3 Product performance requirements ... 14 
5.4 Composition of air separation plant ... 16 
5.5 Other technical requirements ... 24 
6 Exit-factory inspection of air separation plant ... 25 
7 On-site inspection of complete set of air separation plant ... 25 
7.1 Performance inspection conditions for complete sets of air separation plant25 
7.2 Measuring instrument and accuracy or precision ... 26 
7.3 Determination of flow of product oxygen, nitrogen, liquid (liquid oxygen, liquid
nitrogen, liquid argon) ... 27 
7.4 Determination of air flow... 27 
7.5 Determination of product oxygen purity ... 28 
7.6 Determination of product nitrogen purity ... 28 
7.7 Determination of product argon purity ... 28 
7.8 Determination of energy consumption of compression ... 28 
7.9 Calculation of energy consumption ... 29 
7.10 Noise measurement ... 30 
7.11 Measurement of shaft vibration of turbo compressor ... 30 
7.12 Meter launching rate... 30 
8 Marking, packaging, transportation, storage ... 31 
Appendix A (Informative) Metering method for liquid yield flow via the storage
tank volume... 33 
A.1 Metering method for liquid yield flow via the storage tank volume ... 33 
A.2 Determination of ΔV value ... 33 
A.3 Determination of Vv value ... 34 
A.4 Determination of VF value ... 35 
A.5 Determination of Vh value ... 35 
Appendix B (Informative) Calculation method of oxygen equivalent and
comprehensive liquid product yield ... 37 
B.1 Calculation of oxygen equivalent in process I ... 37 
B.2 Calculation of oxygen equivalent in process II and process III ... 37 
B.3 Calculation of the comprehensive liquid product yield in process IV ... 39 
Large and medium scale air separation plants
1 Scope
This standard specifies the terms and definitions, product classification and
model, technical requirements, exit-factory inspection, on-site inspection,
marking, packaging, transportation, storage of large and medium scale air
separation plants (hereinafter referred to as air separation plants).
This standard is applicable to air separation plant, where the oxygen yield is
greater than or equal to 1000 m3/h and less than 60000 m3/h, AND the
cryogenic method is used to separate air, to produce oxygen, nitrogen, argon
products.
Extra-large air separation plant can be implemented, with reference to this
standard.
Note 1: Pressures, which are not specified in this standard, are gauge pressures.
However, if adding "(A)", it means absolute pressure.
Note 2: The production of oxygen, nitrogen, argon in this standard is the gas volume
under the standard state, that is, the gas volume under the state of 0 °C and 101.325
kPa (A), in cubic meters per hour (m3/h).
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB 150 (all parts) Pressure vessel
GB/T 151 Heat exchanger
GB/T 2624 (all parts) Measurement of fluid flow by means of pressure
differential devices inserted in circular cross-section conduits running full
GB/T 2888 Methods of noise measurement for fans blowers compressors
and roots blowers
GB 3096 Environmental quality standard for noise
GB/T 3863 Industrial oxygen
HG/T 2690 Molecular sieve 13X
JB/T 4711 Coating and packing for pressure vessels transport
JB/T 4734 Aluminium welded vessels
JB/T 5902 Technical conditions for oxygen pipelines used in air separation
plants
JB/T 6896 Surface clearness of air separation plant
JB/T 8058 Activated aluminum oxide for air separation equipment -
Acceptance technical condition
JB/T 9077 Conventional powder insulation tanks
JB/T 11006 Air separation plant - Methods for compiling product models
JC/T 1020 Expanded perlite for thermal isolation of low temperature
equipment
SH 3043 Codes for surface color and mark on equipment pipe and steel
structure in petrochemical industry
TSG D0001 Pressure pipe safety technology supervision regulation for
industrial pressure pipe
TSG D7002-2006 Pressure piping components type test regulation
TSG R0004 Supervision regulation on safety technology for stationary
pressure vessel
3 Terms and definitions
The terms and definitions as defined in GB/T 10606, as well as the following
terms and definitions apply to this document.
3.1
The equivalent product A
The sum of the flow rate of the product A per unit time AND the flow rate of
other products after converted to reference product per unit time. It is
obtained by selecting the product A of a certain specification, which is
produced by the air separation plant, as the reference product, AND using
the principle of equivalent energy consumption, to convert other products
into the flow rate (mass flow or volume flow) of the reference product.
air pre-cooling and purification; air pressurization; air expansion at medium
pressure; feeding the structured packing into tower; compressing the liquid
oxygen and reheating it out of the cold box, which is referred to as process
II;
- Internal compression process of high-pressure oxygen: 3.0 MPa < product
oxygen pressure ≤ 10.0 MPa; air filtration and compression; compressed
air pre-cooling and purification; air pressurization (or nitrogen cycle
pressurization); air (nitrogen) expansion at medium pressure; feeding the
structured packing into tower; internal compression of liquid oxygen and
reheating out of the cold box, which is referred to as process III;
- All-liquid air separation process: Air filtration and compression; compressed
air pre-cooling and purification, air (nitrogen) cyclic pressurization,
expansion by high and low temperature turboexpander; feeding the
structured packing into tower; liquid products out of the cold box, which is
referred to as process IV.
This standard defines four types of common processes. For each type of
process, it can be determined whether to include a full distillation hydrogen-free
argon production system. For the air separation plant, whose processes are not
defined in this standard (such as liquid oxygen self-pressurization process, low-
purity oxygen process, pure nitrogen equipment, independent argon extraction
equipment, krypton xenon extraction equipment, neon helium extraction
equipment, liquefaction equipment, etc.), it may be implemented with reference
to this standard.
4.2 The product model is in accordance with the requirements of JB/T 11006.
5 Technical requirements
5.1 Engineering conditions
5.1.1 General:
This standard specifies the general engineering conditions, which are required
in the design of air separation plant. When the values in Table 1 ~ Table 7 do
no...