标准编号:	HG/T 21574-2018
中文名称:	化工设备吊耳设计选用规范
英文名称:	Standard for design and selection of chemical equipment lifting lugs
行业分类:	HG    化工行业标准
发布机构:	中华人民共和国工业和信息化部
发布日期:	2018-04-30
实施日期:	2018-9-1
标准状态:	现行
替代旧标准:	HG/T 21574-2008 化工设备吊耳及工程技术要求
翻译语言:	英文
文件格式:	PDF
中文字符数:	125000 字
翻译价格(元):	8750.00 元
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.



This standard is revised based on the original professional standard HG/T 21574-2008 Chemical equipment lifting lugs and engineering technical specification in accordance with the requirements of Plan for the development and revision of the second batch of professional standards in 2015 (GONGXINTINGKE [2015], No. 429) issued by the General Office of the Ministry of Industry and Information Technology. China Petroleum & Chemical Engineering Survey and Design Association is the chief editor department, the Equipment Design Professional Committee/National Chemical Equipment Design Center Station is entrusted to be responsible for the organization, and China Chengda Engineering Co., Ltd. is the chief drafting organization.



This standard replaces HG/T 21574-2008 Chemical equipment lifting lugs and engineering technical specification from the implementation date hereof.



This revision is based on HG/T 21574-2008 Chemical equipment lifting lugs and engineering technical specification, according to the experience gained since its implementation, extensively solicited opinions, combined with the changes of relevant standards.



This standard consists of 11 clauses and 5 annexes.



The following main changes have been made with respect to HG/T 21574-2008 Chemical equipment lifting lugs and engineering technical specification:



1. The standard name has been changed from Chemical equipment lifting lugs and engineering technical specification to Standard for design and selection of chemical equipment lifting lugs;



2. The clause “application scope” is revised and merged into the clause “general provisions”;



3. The terms and symbols clauses are added;



4. The applicable nominal lifting weight scope of lifting lugs is expanded;



5. The total factor is adjusted;



6. The strength calculation of lifting lug body structure is added.



7. The application scope of materials with minimum thickness is added;



8. The calculation and check of stress bearing during equipment lifting are added.



The Ministry of Industry and Information Technology is in charge of the administration of this standard; China Petroleum & Chemical Engineering Survey and Design Association are responsible for the routine management; and China Chengda Engineering Co., Ltd. is responsible for the explanation of specific technical contents. In case of any comment and suggestion during the process of implementing this standard, please contact China Chengda Engineering Co., Ltd. (address: No. 279 Chengda building, middle section of Tianfu Avenue, Chengdu, Sichuan Province; Postal code: 610041; Tel: 0086-(0)28-65531953; Fax: 028-65530000) for future reference in revision.



Standard for design and selection of chemical equipment lifting lugs



1 General



1.0.1 This standard is specially formulated to ensure the safety of chemical equipment during hoisting and to design and select lifting lugs reasonably.



1.0.2 This standard is applicable to material selection, design, manufacture, inspection and acceptance of lifting lugs for steel chemical equipment and its components during equipment lifting.



1.0.3 This standard specifies the classification, type code, dimension, material, technical requirements of lifting lugs for lifting chemical equipment or its components, and the check and calculation of lifting lugs body and chemical equipment during hoisting.



1.0.4 In addition to this standard, the material selection, design, manufacture, inspection and acceptance of chemical equipment lifting lugs shall also meet the requirements in the current relevant national standards.



2 Terms and symbols



2.1 Terms



2.1.1

lifting lug

parts such as lifting ropes and hooks welded to the equipment for fixing and lifting equipment



2.1.2

top head lug

lifting lug that is welded on top seal head of vertical equipment and made of steel plate



2.1.3

horizontal vessel lug

lifting lug that is welded to the cylindrical section of horizontal equipment and made of steel plate



2.1.4

side plate-type lug

lifting lug that is welded on upper part and top seal head of cylindrical section of vertical equipment and made of steel plate

2.1.5

trunnion

lifting lug that is welded to the cylindrical section of equipment and made of steel pipes or coiled steel plates



2.1.6

tailing lug

lifting lug that is welded to the lower part of vertical equipment and made of steel plates



2.1.7

hoisting

operation procedure in which equipment is lifted and installed at the specified position under the action of hoisting machinery



2.1.8

nominal lifting capability

maximum lifting weight (in t) allowed by a single lifting lug during hoisting lug design or selection



2.1.9

lifting weight of equipment

maximum weight of equipment during hoisting, including the weight of accessories lifted with the equipment, such as ladders, platforms, insulation and auxiliary pipelines, etc.



2.1.10

impact factor

ratio of dynamic load to static load considered during hoisting



2.1.11

unbalance factor

unevenness of load distribution among the lifting lugs considered during hoisting



2.1.12

total factor

amplification coefficient relative to static load determined by comprehensively determining dynamic load, unbalance and other influencing factors during lifting lug strength check, the value of which shall not be less than the product of unbalance factor and dynamic load factor



2.1.13

pad eye

circular plate welded on both sides of the lifting hole for reinforcement



 

2.1.14

shackle

combination formed by assembling buckle and pin shaft



2.1.15

pin

circular section pin in conjunction with buckle



2.1.16

sling angle

included angle between the sling and the vertical direction during hoisting, for the plate-type lug, this standard only considers the case that the sling is in the plane of the lifting lug plate



2.1.17

rifting angle

included angle between the equipment axis and the horizontal direction during hoisting, generally taking 0° when the equipment is in a horizontal state and 90° when the equipment is in a vertical state



2.2 Symbols



2.2.1 Geometrical characteristics



D——the diameter of plate-type lug hole, mm;

D0——the outer diameter of trunnion pipe axis, mm.

D1——the outer diameter of pad eye mm;

dr——the diameter of pin, mm;

h——the calculated thickness of fillet weld, when there is a backing plate, take the smaller of 0.56S1 and 0.7δ. When there is no backing plate, take 0.7δ, mm;

n——the number of lifting lugs, pcs;

S——the thickness of plate-type lug or trunnion pipe axis, mm;

S1——the thickness of backing plates, mm;

S2——the thickness of pad eye, mm;

W——the effective weight (equal to WL/n) of single lifting lug design, kg;

Wn——the nominal lifting capability, ×103kg;

WL——the lifting weight of equipment, kg;

α——the sling field angle, the included angle between sling and vertical direction, °;

δ——the negative deviation of results obtained thorough nominal thickness of the seal head or cylindrical section at the lifting lug minus the thickness of material, mm; θ——the rifting angle (°) included between equipment axis and horizontal direction.



 

2.2.2 Loads, material and the like



E——the elastic modulus of lifting lugs material, MPa;

Fh——the transverse calculated load, N;

FL——the calculation load of sling N;

Fv——the vertical calculated load, N;

g——the gravitational acceleration, m/s2;

K——the total factor of hoisting;

Kd——the impact factor, taking 1.2;

Ku——the unbalance factor, taking 1.125;

ReL——the typical yield strength at room temperature of metallic material, MPa;

v——the poisson's ratio of lifting lugs material, taking 0.3;

σhz——the maximum compressive stress at the lifting hole, MPa;

[σ]——the allowable tensile stress of lifting lugs material, taking ReL/1.6, MPa;

[σhz]——the allowable compressive stress of lifting lugs material, taking 2ReL, MPa;

[ ]——the allowable shear stress of lifting lug material, taking 0.6[σ], MPa;

[σe]——the allowable tensile stress of equipment material, MPa;

[ ]——the allowable shear stress of equipment material, MPa;

Φa——the fillet weld coefficient, taking 0.7.



3 Classification and layout for lifting lugs



3.1 Classification for lifting lugs



3.1.1 This standard contains the following five types of lifting lugs:



1 Top head lug (Types TPA and TPB);

2 Horizontal vessel lug (Type HP);

3 Side plate-type lug (Type SP);

4 Trunnion (Types AXA, AXB and AXC);

5 Tailing lug (Types APA and APB).



3.1.2 See Table 3.1.2 for the classification, diagrams and codes of various lifting lugs.



 

Table 3.1.2 Classification, diagrams and codes of lifting lugs

Type Type code Diagram of lifting lug Type code

Top head lug

TP TPA

TPB

Horizontal vessel lug

HP HP



Side plate-type lug SP SP

Trunnion AX AXA

AXB

AXC

Tailing lug AP APA

APB



3.2 Layout for lifting lugs



3.2.1 Layout of top head lug



1 Two top head lugs should be symmetrically installed on the elliptical head, dish head, spherical head without folded edge or hemispherical head at the top of the vertical equipment, Under special circumstances, the number of lifting lugs shall be more than 2. For elliptical head and dish head, the position of the lifting lug shall be adjusted according to actual needs, but the centerline of the lifting lug should be located within the range of 0.7 times the diameter of the head. When TP-type lifting lugs are arranged on the flat head or conical head at the top of the equipment, the strength of the head shall be checked according to the load of the lifting lugs.



2 The layout of the top head lug is shown in Figure 3.2.1.



Type I Type II

Figure 3.2.1 Layout of top head lug



3.2.2 The layout of horizontal vessel lug is shown in Figure 3.2.2.



Type I



Type II



Type III

Figure 3.2.2 Layout of horizontal vessel lug



3.2.3 Side plate-type lug shall be symmetrically arranged at the top of the cylinder, and the layout is shown in Figure 3.2.3.



Figure 3.2.3 Layout of side plate-type lug



3.2.4 The trunnion shall be arranged above the center of gravity of the equipment. Such factors as equipment and ancillary structure, equipment stress during hoisting and lifting space shall be considered for the specific location. The typical layout is shown in Figure 3.2.4.



Figure 3.2.4 Layout of trunnion



3.2.5 The layout of tailing lug should meet the following requirements:



1 The tailing lug should be installed at the bottom of the skirt, and the end of the lifting lug shall be welded on the shell of the skirt, and when the cover plate of the anchor bolt seat is divided into blocks or those without a plate, the lower edge shall be welded on the base ring plate; when the cover plate of the anchor bolt seat is a complete circle, the tailing lug should be placed between the cover plate and the base ring plate, the upper and lower edges shall be welded to the cover plate and the base ring plate respectively. If due to structural restrictions, the tailing lugs may be placed at other position, and the typical layout is shown in Figure 3.2.5.



Figure 3.2.5 Layout of tailing lug



2 When the distance between the cover plate and the base ring plate is greater than H, H may be increased so that the lifting lug shall be welded to the cover plate and the base ring plate;



Note: see Figure 11.0.1 for H and L.



3 APA- or APB-type should be selected for the tailing lugs according to the nominal lifting weight, and located in the center of the lifting lug of the two upper equipment.



4 Application scope and selection principle for lifting lug



4.1 Application scope for lifting lugs



4.1.1 See Table 4.1.1-1 for the application scope of lifting lugs. See Table 4.1.1-2, Table 4.1.1-3 and Table 4.1.1-4 for the direct selection of the minimum thickness required for the shell.

Foreword i
1 General
2 Terms and symbols
2.1 Terms
2.2 Symbols
3 Classification and layout for lifting lugs
3.1 Classification for lifting lugs
3.2 Layout for lifting lugs
4 Application scope and selection principle for lifting lug
4.1 Application scope for lifting lugs
4.2 General procedures for selecting lifting lugs
5 Technical requirements
5.1 Design
5.2 Material
5.3 Manufacture
5.4 Inspection and acceptance
6 Mark
7 Top head lug
8 Horizontal vessel lug
9 Side plate-type lug
10 Trunnion
11 Tailing lug
Annex A Design of lifting lugs
A.1 Top head lug
A.2 Side plate-type lug
A.3 Horizontal vessel lug
A.4 Trunnion
A.5 Tailing lug
Annex B Requirements of minimum thickness
B.1 Use principles
B.2 Selection of top head lug and minimum thickness requirement of seal head
B.3 Selection of horizontal vessel lug and minimum thickness requirement of cylindrical section
B.4 Selection of trunnion and minimum thickness requirement of cylindrical section
Annex C Calculation and check of stress bearing during equipment hoisting
C.1 Equipment hoisting load
C.2 Bending moment of equipment section
Annex D Inner ring bracing type and check of equipment skirt
D.1 Inner ring bracing type of equipment skirt
D.2 Inner ring bracing check of equipment skirt
Annex E Lifting lug for parts and components
E.1 Type code
E.2 Technical requirements
E.3 Structural style
E.4 Dimension series
E.5 Weight
E.6 Marking
Explanation of wording in this standard
List of quoted standards

1 总 则
1.0.1为了保障化工设备吊装过程中的安全性，合理进行吊耳的设计及选用，特制定了本标准。
1.0.2本标准适用于钢制化工设备及其部件在设备吊装时吊耳的选材、设计、制造、检验和验收。
1.0.3本标准规定了化工设备或化工设备部件吊装用吊耳的分类、型式代号、尺寸、材料、技术要求和吊耳本体及吊装时化工设备的校核计算。
1.0.4化工设备吊耳的选材、设计、制造、检验和验收，除应符合本标准外，还应符合国家现行有关标准的规定。
2术语和符号
2.1 术 语
2.1.1
吊耳lifting lug
焊接在设备上用于固定提升设备所用吊绳、吊钩等的元件。
2.1.2
顶部板式吊耳top head lug
焊接在立式设备顶部封头上，使用钢板制作的吊耳。
2.1.3
卧式设备板式吊耳horizontal vessel lug
焊接在卧式设备筒节上，使用钢板制作的吊耳。
2.1.4
侧壁板式吊耳side plate-type lug
焊接在立式设备筒节上部和顶部封头上，使用钢板制作的吊耳。
2.1.5
轴式吊耳trunnion
焊接在设备筒节上，使用钢管或卷制钢板制作的吊耳。
2.1.6
尾部吊耳tailing lug
焊接在立式设备下部，使用钢板制作的吊耳。
2.1.7
吊装hoisting
在起重机械的作用下，设备被提升并安装于规定位置的作业程序。
2.1.8
公称吊重nominal lifting capability
指在吊耳设计或选型中，单个吊耳允许的最大吊装质量，单位为t(吨)。
2.1.9
设备吊装质量lifting weight of equipment
指设备吊装时的最大质量，含随设备吊装的附件质量，如梯子、平台、保温及附属管线等。
2.1.10
动载荷系数impact factor
考虑吊装过程中，动载荷相对于静载荷的比值。
2.1.11
不平衡系数unbalance factor
考虑吊装过程中，多个吊耳间载荷分配的不均匀程度。
2.1.12
综合影响系数total factor
在吊耳强度校核中，综合考虑动载荷、不平衡等影响因素而确定的相对于静载荷的放大系数，其值不小于不平衡系数和动载荷系数的乘积。
2.1.13
系揽环板pad eye
在吊孔两侧采用焊接连接，起加强作用的圆环形平板。
2.1.14
卸扣shackle
由扣体和销轴装配而成的组合体。
2.1.15
销轴pin
与扣体配合的圆截面销。
2.1.16
吊索张角sling angle
在吊装过程中吊索与竖直方向的夹角。对于板式吊耳，本标准仅考虑吊索在吊耳板平面内的情形。
2.1.17
提升角rifting angle
在吊装过程中设备轴线与水平方向的夹角，一般设备卧置时取0°，设备竖直时取90°。
2.2符 号
2.2.1 几何特征
D——板式吊耳孔直径，mm；
D0——轴式吊耳管轴外径，mm；
D1——系揽环板外径。mm；
dr——销轴直径，mm；
h——角焊缝计算厚度，当有垫板时，取0.56S1和0.7δ中的小者.当无垫板时取0.7δ，mm；
n——吊耳数量，个；
S——板式吊耳厚度或轴式吊耳管轴厚度，mm；
S1——垫板厚度，mm；
S2——系揽环板厚度，mm；
W——单个吊耳吊装设计的有效质量，其值等于WL/n，kg；
Wn——吊耳的公称吊重，×103kg；
WL——设备吊装质量，kg；
α——吊索张角，吊索与竖直方向的夹角，(°)；
δ——设置吊耳处的封头或筒节名义厚度减去材料厚度负偏差，mm；
θ——提升角，设备轴线与水平方向的夹角，(°)。
2.2.2载荷、材料等
E——吊耳材料弹性模量，MPa；
Fh——横向计算载荷，N；
FL——吊索计算载荷，N；
Fv——垂直计算载荷，N；
g——重力加速度，m/s2；
K——吊装综合影响系数；
Kd——动载荷系数，取1.2；
Ku——不平衡系数，取1.125；
ReL——金属材料标准室温屈服强度，MPa；
v——吊耳材料泊松比，取0.3；
σhz——吊孔处的最大挤压应力，MPa；
[σ]——吊耳材料的许用拉应力，取ReL/1.6，MPa；
[σhz]——吊耳材料的许用挤压应力，取2ReL，MPa；
[τ]——吊耳材料的许用剪应力，取0.6[σ]，MPa；
[σe]——设备材料的许用拉应力，MPa；
[τe]——设备材料的许用剪应力，MPa；
Φa——角焊缝系数，取0.7。
3吊耳分类及布置
3.1 吊耳分类
3.1.1本标准含下列五种吊耳类型：
1顶部板式吊耳(TPA型、TPB型)；
2卧式设备板式吊耳(HP型)；
3侧壁板式吊耳(SP型)；
4轴式吊耳(AXA型、AXB型和AXC型)；
5尾部吊耳(APA型、APB型)。
3.1.2各种吊耳的分类、简图及代号见表3.1.2。
表3.1.2 吊耳分类、简图及代号
类型 类型代号 吊耳简图 型式代号
顶部
板式
吊耳 TP TPA
TPB
卧式
设备
板式
吊耳 HP HP

侧壁
板式
吊耳 SP SP
轴式
吊耳 AX AXA
AXB
AXC
尾部
吊耳 AP APA
APB

3.2 吊耳的布置
3.2.1 顶部板式吊耳的布置
1 顶部板式吊耳宜设置在立式设备顶部的椭圆形封头、碟形封头、无折边球形封头或半球形封头上，宜采用两个对称分布，特殊情况吊耳数量可多于2个。对椭圆形封头和碟形封头，应根据实际需要，调整吊耳位置，但吊耳中心线宜处于0.7倍封头直径范围内。当TP型吊耳设置在设备顶部的平封头或锥形封头上时，应按吊耳的载荷校核封头的强度。
2顶部板式吊耳布置型式如图3.2.1所示。

I型

II型
图3.2.1顶部板式吊耳的布置型式
3.2.2卧式设备板式吊耳布置型式如图3.2.2所示。

I型

II型

III型
图3.2.2卧式设备板式吊耳的布置型式
3.2.3侧壁板式吊耳应对称布置在筒体顶部，布置型式如图3.2.3所示。

图3.2.3侧壁板式吊耳的布置型式
3.2.4轴式吊耳应对称布置在设备重心以上位置处。具体位置应考虑设备及附属结构，吊装时设备受力、吊装空间等因素，典型的布置型式如图3.2.4所示。

图3.2.4轴式吊耳的布置型式
3.2.5尾部吊耳的布置宜符合下列规定：
1 尾部吊耳宜设置在裙座的底部，吊耳端部焊于裙座的壳体上，当地脚螺栓座盖板为分块或无盏板时，下边应焊于基础环板上；当地脚螺栓座盖板为整圈时，宜将尾部吊耳置于盖板和基础环板之间，上下边分别与盖板、基础环板焊接。如因结构限制，尾部吊耳可置于其他部位，典型的布置型式如图3.2.5所示。

图3.2.5尾部吊耳的布置型式
2 当盖板与基础环板之间的距离大于H时，可增大H，使吊耳能够与盖板及基础环板相焊；当基础环板或盖板的外伸长度超出吊耳长度并影响吊装时，可增大L值，增大H值或L值应在图中注明。
注：H，L见图11.0.1。
3尾部吊耳宜根据公称吊重选用APA型或APB型，方位宜位于两个上部设备吊耳的正中。
4 吊耳的适用范围和选用原则
4.1 吊耳的适用范围
4.1.1 吊耳适用范围见表4.1.1-1。壳体所需最小厚度的直接选用见表4.1.1-2、表4.1.1-3、表4.1.1-4。
 

表4.1.1-1 吊耳适用范围
吊耳类型 吊耳系列 公称吊重/t 公称直径DN/mm

 
表4.1.1-2顶部板式吊耳壳体最小厚度可直接选用表
公称直径
DN/mm 公称吊重/t
1.0 2.0 3.5 5.0 7.5 10 12.5 15

 
表4.1.1-3卧式设备吊耳壳体最小厚度可直接选用表
公称直径
DN/mm 公称吊重/t
1.0 2.0 3.5 5.0 7.5 10 12.5 15


表4.1.1-4轴式吊耳壳体最小厚度可直接选用表
公称
直径
DN/mm 公称吊重/t
2.5 3.75 5 7.5 10 12.5 15 17.5 20 22.5 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

公称
直径
DN/mm 公称吊重/t
5 7.5 10 12.5 15 17.5 20 22.5 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110

 

公称 公称吊重/t
直径
DN/mm 20 22.5 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110

 
公称
直径
DN/mm 公称吊重/t
120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300


4.1.2板式吊耳(包括TP、SP、AP型吊耳)的受力应保证在吊耳板平面内，当板式吊耳在吊装过程中有板外力或(和)力矩时，还应校核吊耳板、吊耳板与设备焊接接头处的应力。
4.1.3 吊装单位应选用合理可靠的吊装工艺和适宜的环境条件，以保证设备吊装时的动载荷系数和不平衡系数不大于本标准的设定值。
4.2 吊耳选用的一般程序
4.2.1 确定吊耳型式。应根据设备的布置方式确定适当的吊耳型式，立式设备宜选TP、SP、AX型吊耳，卧式设备宜选HP型吊耳，塔式设备宜根据需要选用AP型尾部吊耳。
4.2.2确定吊耳系列。应根据设备的材料、直径、结构、设备吊装质量按本标准4.1.1，并结合本标准附录B对最小厚度的要求，按本标准第7～11章列出的各型吊耳的尺寸系列确定吊耳系列。
4.2.3应校核设备吊装过程中各危险截面的强度和稳定性。
5技术条件
5.1 设 计
5.1.1 板式吊耳的布置方位应使吊耳板为板内受力。
5.1.2设计者应校核吊耳本体、吊耳与垫板、吊耳与设备封头或筒节、垫板与筒节危险截面的强度及稳定性，当满足本标准表4.1.1-2、表4.1.1-3、表4.1.1-4和本标准附录B.1的要求时，可直接选用。
5.1.3设计者应校核吊装时设备各个危险截面的强度及稳定性。
5.1.4 吊装设备可能出现强度或稳定性失效时，应调整吊耳位置并在危险截面设置加强支撑环。
5.1.5当所选吊耳在吊装过程有特殊考虑和要求时，设计者应在图纸中明确标示出。
5.2材 料
5.2.1 制作吊耳的材料应有质量证明文件，材料不得有裂纹、重皮、夹层等缺陷。
5.2.2 TPA型吊耳宜与所连接的封头选用同类材料。
5.2.3本标准中的吊耳板材选用Q235B，应符合现行国家标准《碳素结构钢和低合金结构钢热轧钢板和钢带》GB/T 3274的规定；管材选用20无缝钢管，应不低于现行国家标准《输送流体用无缝钢管》GB/T 8163的规定。
5.2.4本标准中的轴式吊耳用管轴可以采用无缝钢管制作或板材卷制，当采用板材卷制时，管轴的纵向对接焊缝应进行无损检测，无损检测要求见本标准5.4.1。
5.2.5焊接接头应采用现行行业标准《承压设备焊接工艺评定》NB/T 47014无损探伤评定合格的焊接工艺和相应的焊接规程予以保证。焊接材料应符合现行行业标准《承压设备用焊接材料订货技术条件》NB/T 47018的规定。
5.2.6允许采用其他性能相当或更好的材料制作吊耳零件.但应考虑材料的可焊性。
5.2.7 吊耳垫板材料应与所连接的壳体或封头材料相同。
5.3 制 造
5.3.1 除侧壁板式吊耳的吊耳板与壳体贴合有一定弧度外，其余吊耳的吊耳板应平直。垫板应与封头或壳体的曲面紧密贴合，间隙不大于1.0mm。
5.3.2轴式吊耳的轴线应与设备轴向中心线垂直，偏差不大于0.5°。
5.3.3 吊耳及其垫板边缘焊缝应合理避开壳体焊缝及壳体上其他附件焊缝。
5.3.4轴式吊耳垫板宜采用整板制作，当拼接时，拼接数量不宜大于2块，焊接接头应均匀布置。
5.3.5吊耳板、垫板、挡板、内筋板及连接板等的切割表面不应有裂纹、毛刺等缺陷。
5.3.6除图7.0.1、图8.0.1-1、图8.0.1-2、图9.0.1、图10.0.1-1、图10.0.1-2、图10.0.1-3、图11.0.1中注明外，其余机加工表面和非机加工表面的未注公差尺寸的极限偏差应符合现行国家标准《一般公差 未注公差的线性和角度尺寸的公差》GB/T 1804的规定，孔为H14和H16，轴为h14和h16。长度为JS14(js14)与JS16(js16)级精度。螺孔尺寸应符合现行国家标准《普通螺纹 基本尺寸》GB/T 196的规定，其公差应符合现行国家标准《普通螺纹 公差》GB/T 197—2018的规定，为7H。
5.3.7 垫板与壳体的焊接接头应由M10螺纹孔通人0.4～0.5MPa的压缩空气检查垫板与壳体的焊接接头的质量，角焊缝不应有渗漏现象。
5.4检验与验收
5.4.1 用钢板卷焊制成的轴式吊耳管轴，其对接接头必须进行100％射线检测，按现行行业标准《承压设备无损检测 第2部分：射线检测》NB/T 47013.2—2015，II级合格，检测技术等级为AB级。
5.4.2轴式吊耳拼接垫板间的对接焊缝应进行100％射线检测，按现行行业标准《承压设备无损检测 第2部分：射线检测》NB/T 47013.2—2015，II级合格，检测技术等级为AB级。
5.4.3除5.4.1与5.4.2以外的其余所有焊接接头均应进行外观检查，不应存在裂纹与未熔合缺陷。除轴式吊耳的内筋板焊接接头以外，其余焊接接头还必须进行100％磁粉或渗透检测，按现行行业标准《承压设备无损检测 第4部分：磁粉检测》NB/T 47013.4—2015或现行行业标准《承压设备无损检测 第5部分：渗透检测》NB/T 47013.5—2015，I级合格。
6标 记
6.0.1标记方法

HG/T 21574—2018 吊耳×××-××-××-××
垫板厚度
吊耳公称吊重
吊耳系列号
吊耳型式代号
注：TPA型、SP型、AP型吊耳可不标记垫板厚度。
6.0.2标记示例
1 选用系列号为5，公称吊重为12.5t，垫板厚度为18mm的顶部板式吊耳，其标记为HG/T 21574—2018 吊耳TPB-5-12-5-18。
2选用系列号为6，公称吊重为15t，垫板厚度为16mm的卧式设备板式吊耳，其标记为HG/T 21574—2018 吊耳HP-6-15-16。
3选用系列号为6，公称吊重为20t的SP型吊耳，其标记为HG/T 21574-2018 吊耳SP-6-20。
4选用系列号为6，公称吊重为60t，垫板厚度为20mm的轴式吊耳，其标记为HG/T 21574—2018吊耳AXB-6-60-20。
5选用系列号为4，公称吊重35t的AP型吊耳，其标记为HG/T21574—2018吊耳APA-4-35。
7顶部板式吊耳
7.0.1 顶部板式吊耳的结构型式及几何参数如图7.0.1所示。

至设备中心线距离
吊索方向注2
板面
其余
1—吊耳板；2—垫板(TPB型)

注1：TPA(B)-1时，β=0°；其他系列时，β=20°。
注2：吊装载荷单独作用在顶部板式吊耳时。
图7.0.1顶部板式吊耳的结构型式及几何参数
7.0.2顶部板式吊耳的尺寸系列见表7.0.2。
表7.0.2顶部板式吊耳的尺寸系列
TPA/TPB
吊耳系列 1 2 3 4 5 6 7
公称吊重/t 1 3.5 7.5 10 12.5 15 15

7.0.3顶部板式吊耳的位置见表7.0.3。
表7.0.3顶部板式吊耳的位置

注1：DN——设备公称直径。
注2：L——吊耳板中心线距设备中心线距离。
7.0.4顶部板式吊耳选用封头所需最小厚度见附录B表B.2.1，垫板厚度见B.1.5。
7.0.5单个TPA型和TPB型顶部板式吊耳的质最见表7.0.5-1和表7.0.5-2。
表7.0.5-1单个TPA型顶部板式吊耳的质量 kg
TPA顶部板式吊耳系列
TPA-1 TPA-2 TPA-3 TPA-4 TPA-5 TPA-6 TPA-7
1.7 4.4 8.4 12.0 12.8 18.9 19.8

表7.0.5-2单个TPB型顶部板式吊耳的质量 kg
S1/mm TPB顶部板式吊耳系列
TPB-1 TPB-2 TPB-3 TPB-4 TPB-5 TPB-6 TPB-7

8卧式设备板式吊耳
8.0.1 卧式设备板式吊耳的结构型式及几何参数如图8.0.1-1和图8.0.1-2所示。

板面
其余
I型布置
Ⅲ型布置
吊索方向注
1—吊耳板；2—垫板
注：吊装载荷单独作用在板式吊耳时。
图8.0.1-1卧式设备布置型式为I、Ⅲ的板式吊耳的结构型式及几何参数

板面
其余
II型布置
吊索方向注
设备轴线
1—吊耳板：2—垫板
注：吊装载荷单独作用在板式吊耳时。
图8.0.1-2卧式设备布置型式为Ⅱ的板式吊耳的结构型式及几何参数
8.0.2 卧式设备板式吊耳的尺寸系列见表8.0.2。
表8.0.2卧式设备板式吊耳的尺寸系列
吊耳系列 HP-1 HP-2 HP-3 HP-4 HP-5 HP-6
公称吊重/t 3.5 7.5 10 12.5 15 15

8.0.3卧式设备板式吊耳选用筒节所需最小厚度见附录B表B.3，垫板厚度见B.1.5。
8.0.4单个卧式设备板式吊耳的质量见表8.0.4。
表8.0.4单个卧式设备板式吊耳的质量 kg
S1/mm 卧式设备板式吊耳系列
HP-1 HP-2 HP-3 HP-4 HP-5 HP-6

9侧壁板式吊耳
9.0.1 侧壁板式吊耳的结构型式及几何参数如图9.0.1所示。

板面
其余
1—垫板；2—吊耳板；
3—连接板；4—系缆环板
(a)吊耳弯成弧形 (b)吊耳为平板要求 (c)垫板一侧刨平要求
图9.0.1侧壁板式吊耳的结构型式及几何参数
9.0.2侧壁板式吊耳的尺寸系列见表9.0.2。
表9.0.2侧壁板式吊耳的尺寸系列
吊耳系列 SP-1 SP-2 SP-3 SP-4 SP-5 SP-6 SP-7 SP-8 SP-9 SP-10 SP-11 SP-12 SP-13
公称吊重/t 3 5 8 10 15 20 25 35 50 75 100 150 200

注：表中L2公式仅适用于标准椭圆封头和半球形封头，其中δ为封头名义厚度，h1为封头曲面高度，h2为封头直边高度。其他型式封头的L2由设计者给出。

 
9.0.3无直边段半球形封头侧壁板式吊耳的质量见表9.0.3。
表9.0.3 无直边段半球形封头侧壁板式吊耳的质量 kg
公称直径
DN/mm 侧壁板式吊耳系列
SP-1 SP-2 SP-3 SP-4 SP-5 SP-6 SP-7 SP-8 SP-9 SP-10 SP-11 SP-12 SP-13

注：表中吊耳质量计算忽略封头厚度的影响。
 
9.0.4标准椭圆形封头侧壁板式吊耳的质量见表9.0.4。
表9.0.4标准椭圆形封头侧壁板式吊耳的质量 kg