This standard specifies the structural type, series parameters, dimensions, allowable loads, materials and technical requirements for manufacturing, inspection and acceptance of steel vertical vessel leg supports. JB/T 4713-1992 Leg type support JB/T4713-1992 Standard download and decompression password: www.bzxz.net

Theme content and scope of application
Industry Standard of the People's Republic of China
Leg type support
JB/ T4713-92
20ntg108
1.1 Theme content|| tt||This standard specifies the structural type, series specifications, dimensions, allowable loads, materials and manufacturing, inspection and acceptance technical requirements for steel vertical vessels (hereinafter referred to as "vessels") medullary supports (referred to as supports) . 1.2 Scope of application
This standard applies to containers installed on rigid foundations and meeting the following conditions: 8. Nominal diameter DN400~~DN1600, mm; b. The ratio of the simplified length L of the circle to the nominal diameter DN L/DN<5; c. The total height of the container is H, <5000mm.
shown.
This standard does not apply to vessels that are rigidly connected through pipelines directly to machinery and equipment that generate pulsating loads. The arrangement of the legs is shown in Figure 1. 2 Reference standards
GB150 "Steel Pressure Vessels"
GB1804 "Limit deviations of tolerances and fitting dimensions without tolerances" 3 Type features
Type
A
AN
B
BN
Ministry of Mechanical and Electronic Industry
Ministry of Chemical Industry
Lao||tt ||Dynamics
Department
China Petroleum & Chemical Corporation
32-
Support No.
1~7
1~7
1~5
1~3
Table 1 Type Characteristics
Applicable nominal diameter m
Structure to be levied
Angle steel pillar, Backing plate
DN400-1600
1992-08-02 approved
Angle steel support without backing plate
Steel pipe support with backing plate
Steel pipe pillars, unskirted pads
Implemented on 1992-12-01
Structure and dimensions
JBIT
4713-92
120||tt| | 12 | | tt | | DN400DN700 | Provisions. The structural dimensions of type B and BN leg supports are as specified in Figure 4, Figure 5 and Table 3. Type 8
The thickness of the backing plate for Type A and Type B legs is generally equal to the thickness of the cylinder, and can also be determined according to needs. 33
Full plate
Cover plate||tt| |Strut
Base plate
34
A
Weld
H
JBT
DN
Da
4713-92
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Figure 2 Type A spot bearing
A direction
cover plate
support||tt ||Civil plate
JB/T 4713-92
DN
Welding
D
Figure 3AN type leg support
A direction
35
4713-92
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base board
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Strut
D, D+281
Diameter
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D||tt| |中
The ant is equal to the original segment of the circle
Aperture
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081
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Bearing mother
- 36-
Cover plate
Backing plate
Wang version
support
base plate
a.
20
JB/T 4713-92
DN| |tt||s
Welding spots
Figure 4 B-type leg support
- 37
38
Plate
Support
R
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4713-92
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Picture BN embryonic support
DN
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4713-92
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D,= DN+28,-2Lg-40
n
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09
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breast diameter
peck degree
sst
long skin
081
oz
s8| |tt||5
8
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6
5
3
2
Bearing number||tt| | 39 -
JB/T 4713-92
５Material
The material of A-type supporting angle steel pillar is Q235-A·F. The material of the B-type support pillar is No. 10 steel, and the bottom plate and cover plate are both Q235-A·F. If necessary, other materials can be used, but their strength performance shall not be lower than Q235-A·F or the strong joint of No. 10 steel. Performance indicators, and should have good welding performance. The material of the backing plate should generally be the same as the material of the container body. Welding materials are specified in relevant standards. 6 Marking
6.1 Marking method
JB/T 4713-92. Leg X XX
Support distance H, mm
Support number (1～7)
Model (A, AN, B, BN)
Example 1 The nominal diameter of the container is DN800, the support legs of the corner pot are not supported, the material is Q235-A·F, the support height is marked 6.2 Example,
H=800mm. Its mark is:
JB/T 4713-92. Support AN3-800
Example 2 The nominal diameter of the container is DN1200, the boiler tube support is supported by a backing plate, and the material is No. 10 steel: the support height H=900mm, its mark is:
JB/T4713-92: Support version B4-900
7 Manufacturing and installation requirements·
7.1 The pillars should be straight and without Obvious defects such as dents and damage. Support straightness tolerance △
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