JB/T 5905-2000 This standard is a revision of JB/T 5905-1992 "Vacuum Multi-layer Insulated Cryogenic Liquid Containers". The technical content of the revised standard has changed. This standard specifies the types and basic parameters, technical requirements, inspection rules and test methods, marking, packaging, transportation and storage of vacuum multi-layer insulated cryogenic liquid containers. This standard applies to fixed vacuum multi-layer, multi-screen insulated cryogenic liquid (liquid oxygen, liquid nitrogen, liquid argon, liquid hydrogen and liquid helium, etc.) storage containers. This standard was first published in . JB/T 5905-2000 Vacuum multi-layer insulated cryogenic liquid container JB/T5905-2000 Standard download and decompression password: www.bzxz.net

ICS71.100.20
176
JB
Mechanical Industry Standard of the People's Republic of China
JB/T5905-2000
Vacuum multi-layer insulated cryogenic liquid container|| tt | |JB/T5905—2000
Foreword
This standard is a revision of JB/T5905--92 "Vacuum Multi-layer Insulated Cryogenic Liquid Containers". Compared with JB/T5905-92, the main technical content of this standard has changed as follows:
—4.4, the flaw detection standard GB33231987 "Radiography and Quality Classification of Steel Fusion Welded Butt Joints" has been canceled and revised to JB4730 "Nondestructive Testing of Pressure Vessels" ;
~4.8, cancel JB/TQ594 "Technical Conditions for Safety Valves for Cryogenic Liquid Containers" and modify it to be in accordance with the "Capacity Regulations"; - add 5.4, the safety valve performance test method is in accordance with GB/T122421989 "Female Full Valve" Performance Test Methods". This standard replaces JB/T5905--92 from the date of implementation. This standard is proposed and managed by the Technical Committee for Standardization of Gas Separation and Liquefaction Equipment in the Mechanical Industry. This standard was drafted by: Sichuan Air Separation Equipment (Group) Co., Ltd. The main drafters of this standard: Ji Honghua and Liao Xingcai. Scope
Machine Industry Standard of the People's Republic of China
Vacuum multi-layer insulated cryogenic liquid containers
Cryogenic liqnid containers imsulatedwith evacuatedmultilayer insutations
JB/T5905—2000
Replaces JB/T5905-92
This standard specifies the type and basic parameters, technical requirements, inspection rules, test methods, marking, packaging, transportation and storage of vacuum multi-layer insulated cryogenic liquid containers (hereinafter referred to as containers). This standard applies to fixed vacuum multi-layer, multi-screen insulated cryogenic liquid (liquid oxygen, liquid nitrogen, liquid hydrogen, liquid hydrogen and liquid ammonia, etc.) storage containers.
This standard does not apply to liquid nitrogen biological containers, superconducting containers and transport containers. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest version of the following standards, GB150—1998
GB/T 12242—1989
GB/T13384—1992||tt ||JB 15801975
JB2536—1980
JB/T 3356.1—1999
JB4730—1994
Steel pressure vessels
Safety valve performance test method
General technical conditions for mechanical and electrical product packaging
Technical conditions for aluminum welded containers
Pressure vessels, paint, packaging, transportation
Cryogenic liquid container performance test methods||tt| |Non-destructive testing of pressure vessels
"Safety Technical Supervision Regulations for Pressure Vessels" (hereinafter referred to as "Capacity Regulations") 3 types and basic parameters
3.1 The type of container is shown in Figure 1, Figure 2, and Figure 3. Figure丨Spherical container
Guojing Machinery Industry Bureau approved on 2000-08-31 Figure 2 vertical container
Figure 3 horizontal container
Implemented on 2000-12-01||tt| |JB/T5905—2000
3.2 The basic parameters of the container and the daily evaporation rate should comply with the provisions of Table 1 and Table 2. Table 1
Effective passenger volume L
T. Operating pressure
MPa
Daily evaporation of liquid oxygen
%
Nitrogen reduction Evaporation rate
%
Effective safety schedule 1
L for Tianli APa
Liquid oxygen daily evaporation rate %
Chlorine daily evaporation rate||tt ||%
Table 2
Effective volume L
I. Operating pressure MPa
Liquid ammonia evaporation rate %
Liquid hydrogen daily evaporation rate %| |tt||Effective volume L
1. Operating pressure MPa
Daily evaporation rate of liquid oxygen %
Daily evaporation rate of liquid hydrogen %
Note
Basic parameters and daily evaporation rate of vacuum multi-layer insulated cryogenic liquid (liquid ammonia, liquid nitrogen) container 5
10
16
5.76
11
200
<0.1
0.69
1.1
4.1
.5.5
0.1~1.4
1.3||tt ||2.1
10
<0.1
2.8
4.5
15
2.19
3.3||tt| |300
<0.1
0.62
1.0
0.94
1.50
Vacuum multi-layer insulated cryogenic liquid (liquid ammonia, 25| |tt||6
4000
50
2
1 Assume that the hydrogen content of hydrogen parts should be above 90%
100||tt. ||200
0.1
1.5
1.4
5000
0.85
1.2
1.0
30
E.56
2.5
500
0.62
1.0
1.37
2.2www.bzxz.net
50
0.1-1.4
1.88
3.0
1000
0.50
0.80
100
0.1
0.8
1.3
2000
0.11.4
0.44
0.70
0.11.4||tt ||1.73
2.8
3000
0.40
0.64
Basic parameters of liquid hydrogen) container and daily evaporation rate 300
1.1| |tt||0.9
6000
2 For containers with undetermined daily evaporation rate of liquid hydrogen, the evaporation rate value can be specified according to the direction. 500
10000
0.1~1,4
1.0
0.8
0.8
3 Liquid hydrogen evaporation rate value of liquid hydrogen container , can be obtained by multiplying the liquid oxygen evaporation rate value by the coefficient 1.0. 4T operating pressure can also be specified in the contract.
4 technical requirements
1000
15000
1500
150
<0.1
0.75
1.2
5000
0.30
0.48
2000
0.1~1.4
0.9
20000
0.7
0.1-1.4
16
2.56
1G0GO
0.25
0.40
3000
In addition to standard requirements, 30000
containers should also comply with GB150, JB1580 and the "Content Regulations", and should be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures 4.1
. 4.2 Requirements for thermal insulation materials and adsorbents of containers 4.2.1 The performance of thermal insulation materials and adsorbents should comply with the provisions of relevant standards, drawings and technical documents. 4.2.2 The thermal insulation materials should be dried, and the thermal insulation materials containing oil and fat should be deoiled and degreased, and should comply with the requirements of the drawings and technical documents.
2
JB/T5905—2000
4.2.3 The adsorbent should be activated before being loaded into the container, and should comply with the requirements of the drawings and technical documents. The activated adsorbent should be put into the container as soon as possible and isolated from the atmosphere. The time exposed to the atmosphere should not exceed 4 hours, otherwise it should be reactivated. 4.3 Cleanliness
4.3.1 All surfaces and parts in a vacuum environment should be clean and dry before assembly. There should be no welding slag, scale, oil and dust on the surface. 4.3.2 The surface of the total oil parts The grease should be removed, and the degreased surface should be wiped with clean, dry white filter paper. There should be no traces of grease or rust spots on the paper. 4.4 Butt welds of inner containers (categories A and B) that fall within the scope of the "Contents Regulations" and GB150 Category A and B) shall undergo 100% radiographic inspection and shall comply with the Level II requirements specified in JB4730 or JB1580; the butt welds of outer vessels (categories A and B) shall undergo 20% radiographic inspection and shall comply with the Level III requirements specified in IB4730 Or the Level II requirements stipulated in JB1580: The inspection method of the final composite girth weld should be according to the design drawing requirements
4.5 The welding joints and joints related to the sandwich vacuum should be tested for leaks with a hydrogen mass spectrometer, and the leakage rate should comply with the drawing requirements. Requirements, the static leakage and release rate is calculated according to formula (1):
e(P.-p
where: e——static leakage and release rate, Pa·L/s; -P —The degree of vacuum at the end of the test, Pa;
Po —The degree of vacuum at the beginning of the test, Pa;y—The geometric volume of the vacuum sandwich, L:
t—Test time (not less 72h), s. (1)
4.6 Pressure-resistant inner vessels shall be subjected to pressure test and air-tightness test. The test pressure and test method shall be in accordance with the relevant provisions of the "Capacity Regulations" 4.7. The insulation layer shall be wound. Firm, the layer density should comply with the drawings. 4.8' Equipped valves, instruments and safety devices 4.8.1 The valves and pressure gauges used in the container should have quality certificates or product certificates. 4.8.2 The opening and closing of the safety valve should be valid. , sealed, the explosion-proof device should be accurately detonated, and the safe explosion-proof device should comply with the provisions of GB150 and "Content Regulations"
5 Inspection rules and test methods
5.1 Each container should be quality tested by the manufacturer. The inspection department shall pass the inspection and the product certificate shall be attached. 5.2 Containers shall be subject to evaporation rate test. For containers with an effective volume of less than or equal to 5000L, no less than 50% of the containers in each batch shall be randomly inspected. When one unit fails, the entire batch shall be inspected. It should be inspected one by one; for containers with an effective volume greater than 5000L, the evaporation rate test shall be conducted at the place of use by the manufacturer and the user. 5.3 The evaporation rate measurement method shall be in accordance with JB/T3356. 1. 5.4 The safety valve performance test method shall be in accordance with the provisions of GB/T12242. 5.5 If the product is found to have poor manufacturing quality within 18 months from the date of shipment from the manufacturer, the user shall comply with the provisions of the product instruction manual. If it fails to work normally or is damaged, the manufacturer shall repair or replace it free of charge. 6 Marking, packaging, transportation and storage
6.1 A nameplate shall be installed on the visible part of the container, and the content shall comply with the provisions of the "Content Regulations". 6.2 When the container (referring to the pressure capacity) leaves the factory, the container and piping system should be filled with 0.01~0.02MPa explosive nitrogen, and all pipe valves should be sealed 1. 3
JB/T5905—2000
6.3 The painting, packaging and transportation of containers shall comply with the regulations of JB2536 and GB/T13384. 6.4·The product should be stored in a cool, dry place under the original packaging conditions of the manufacturer. 6.5 When the container leaves the factory, it should be accompanied by at least the following technical documents: a) Product quality certificate;
b) Product certificate;
c) Packing list:
d) Instructions for use ;
e) Pressure vessel completion drawing.
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