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1、USSR STATE STANDARD DEVICES FOR FASTENING THERMAL INSULATION OF STEEL VESSELS AND EQUIPMENT DESIGN AND DIMENSIONS. TECHNICAL REQUIREMENTS GOST 17314-81 Official Edition USSR STATE COMMITTEE FOR STANDARDS Moscow DEVELOPED by the USSR Ministry of Mounting and Special Construction Works DEVELOPERS S. V
2、. Bolshakov, V. V. Popova (Project Heads); K. I. Bobkova SUBMITTED by the USSR of Mounting and Special Construction Works Board Member: V. M. Orlov APPROVED INTRODUCED by Decree No. 782, dated 16.02.81 of the USSR State Committee for Standards -,-,- UDC 621.88: 66.023: 006.354Group 47 USSR STATE STA
3、NDARD DEVICES FOR FASTENING THERMAL INSULATION OF STEEL VESSELS AND EQUIPMENT Design and dimensions. Technical requirements GOST 17314-81 In place of GOST 17314-71 OKP (All-Union Product Classification Code) 48 3400 Period of validity set by Decree No. 782, dated 16.02.81 of the USSR State Committee
4、 for Standards from 01.01 1982 until 01.01 1987 regarding bush B2 - from 01.01 1985. Failure to comply with this Standard will result in legal proceedings This Standard applies to devices for fastening external thermal insulation and arrangement of these devices on stationary steel vessels and equip
5、ment (hereinafter referred to as devices) with a temperature of the medium in the objects from 100 to + 600 C inclusive, no less than 500 mm in diameter, with curvilinear or flat surfaces, used in chemical, oil-chemical, oil- refining, power, and other industries. This Standard does not apply to dev
6、ices used in reservoirs, produced by coiling technique or spherical reservoirs. 1. DESIGN AND DIMENSIONS 1.1. Devices of three modifications shall be produced depending on the type of insulation and method of its fastening: 1 for fastening of insulation up to 100 mm thick with a single pin; 2 for fa
7、stening of insulation up to 260 mm thick with a double pin; 3 for fastening by suspension of prefabricated thermal insulating constructions from 40 to 120 mm thick. Official EditionReprinting is prohibited Standards Publishing House, 1981 -,-,- p. 2 GOST 17314-81 1.2. Design of the devices and their
8、 application shall comply with those stipulated in figures 1 to 12 and in table 1. Modification 1 The device consisting of the bracket 1 and single pin 1 Bracket Bend for installation Pin Fig. 1 The device consisting of the bracket 2 and single pin 1 Bracket Bend for installation Pin Fig. 2 The devi
9、ce consisting of the bush B1 and single pin 1 Bush Bend for installation Pin Fig. 3 -,-,- GOST 17314-81 p. 3 Modification 2 The device consisting of the bracket 1 and double pin 2 Bracket Bend for installation Pin Fig. 4 The device consisting of the bracket 2 and double pin 2 Bracket Bend for instal
10、lation Pin Fig. 5 The device consisting of the bush B1 and double pin 2 Bush Bend for installation Pin Fig. 6 -,-,- p. 4 GOST 17314-81 Modification 3 The device consisting of the bracket 1 and suspension bracket 1 Bracket Suspension bracket Fig. 7 The device consisting of the bracket 2 and suspensio
11、n bracket 1 Suspension bracket Bracket Fig. 8 The device consisting of the bush B1 and suspension bracket 1 Suspension bracket Bush Fig. 9 GOST 17314-81 p. 5 The device consisting of the bracket 1 and suspension bracket 2 Bracket Suspension bracket Fig. 10 The device consisting of the bracket 2 and
12、suspension bracket 2 Bracket Suspension bracket Fig. 11 The device consisting of the bush B1 and suspension bracket 2 Bush Suspension bracket Fig. 12 Table 1 Application Identification number of the device Design of thermal insulation and ultimate thickness Thickness of thermal insulation, mm Weight
13、, kg, no more than 1-1/600.046 2-1/600.053 B1-1/60 To 60 0.045 1-1/1000.052 2-1/1000.059 B1-1/100 For fastening thermal insulation from soft and semi-rigid items to 100 mm thick Over 60 to 100 inclusive 0.051 -,-,- p. 6 GOST 17314-81 Table 1 (cont.) Application Identification number of the device De
14、sign of thermal insulation and ultimate thickness Thickness of thermal insulation, mm Weight, kg, no more than 1-2/500.069 2-2/500.076 B1-2/50 To 50 0.068 1/2/1000.085 2-2/1000.092 B2-2/100 For fastening thermal insulation from rigid items to 100 mm thick Over 50 to 100 0.084 1-2/1600.103 2-2/1600.1
15、10 B1-2/160 Over 100 to 160 inclusive 0.102 1-272000.116 2-2/2000.123 B1-2/200 Over 160 to 200 inclusive 0.115 1-2/2600.138 2-2/2600.146 B1-2/260 For fastening thermal insulation from soft and semi-rigid items to 260 mm thick Over 200 to 260 0.137 1-10.159 2-10.166 B1-10.158 1-20.065 2-20.072 B1-2 F
16、or fastening prefabricated thermal insulating constructions up to 120 mm thick Over 40 to 120 inclusive 0.064 N o t e . Selection of suspension bracket modification shall depend on the type of fastening part on the prefabricated thermal insulating construction. Example of conventional designation of
17、 the device of modification 1 with the bracket 1 for fastening insulation up to 60 mm thick with a single pin 1: 1-1/60 17314-81 As above, with the bush B1: B1-1/60 17314-81 Conventional designation of the device of modification 2 with the bracket 1 for fastening insulation up to 160 mm thick with a
18、 double pin 2: 1-2/160 17314-81 As above, with the bush B1: B1-2/160 17314-81 -,-,- GOST 17314-81 p. 7 Conventional designation of the device of modification 3 with the bracket 1 for fastening insulation from 40 to 120 mm thick with suspension bracket 1: 1-1 17314-81 As above, with the bush B1: B1-1
19、 17314-81 Conventional designation of the device of modification 3 with the bracket 1 for fastening insulation from 40 to 120 mm thick with suspension bracket 1: 1-2 17314-81 As above, with the bush B1: B1-2 17314-81 1.3. Application of the truncated bush, welded using electric bow-contact welding,
20、(see note to figure 15) and clause 2.3.1, for the devices of modification 1 (figure 2), modification 2 (figure 6), and modification 3 (figures 9 and 12) shall be allowed. 1.4. Devices for fastening external thermal insulation shall consist of the welded and removable parts, which are the part of the
21、 equipment. Design, dimensions and weight of the welded parts shall comply with those stipulated in figures 13 to 15 and in table 2. Design, dimensions and weight of the removable parts shall comply with those stipulated in figures 16 to 19 and in tables 3 and 4. Bracket 1Bracket 2 Along the contour
22、 Along the contour 2 holes 8 Fig. 13Fig. 14 -,-,- p. 8 GOST 17314-81 Table 2 Identification number of the bracket Length of the unfolded view, mm, no more than Weight, kg, no more than 1310.018 2450.026 Example of the conventional designation of the bracket 1: 1 17314-81 As above, 2: 2 17314-81 Bush
23、 B1 Weight shall not exceed 0.017 kg Fig. 15 Example of the conventional designation of the bush B1: B1 17314-81 N o t e . Application of truncated bush (B2) no less than 14 mm long (without changing the other dimensions) shall be allowed. -,-,- GOST 17314-81 p. 9 Single pin 1 Fig. 16 Table 3 Dimens
24、ions in mm Identification number of the pin l Length of the unfolded view, mm, no more than Weight, kg, no more than 1/601501800.028 1/1001902200.034 Example of conventional designation of the single pin 1 for the insulation up to 60 mm thick: 1/60 17314-81 p. 10 GOST 17314-81 Double pin 2 Fig. 17 T
25、able 4 Dimensions in mm Identification number of the pin ll1 Length of the unfolded view, mm, no more than Weight, kg, no more than 2/501501003310.051 2/1002001504310.067 2/1602602105510.085 2/2003002506310.098 2/2503603107510.12 Example of conventional designation of the double pin 2 for the insula
26、tion up to 50 mm thick: 2/50 17314-81 GOST 17314-81 p. 11 Suspension bracket 1 Along the contour Length of the unfolded view shall not exceed 79 mm. Weight shall not exceed 0.141 kg Fig. 18 Suspension bracket 2 Along the contour Weight shall not exceed 0.047 kg Fig. 19 Example of conventional design
27、ation of the suspension bracket 1: 1 17814-81 As above, 2: 2 17314-81 p. 12 GOST 17314-81 2. TECHNICAL REQUIREMENTS 2.1. The devices shall be produced in accordance with the requirements of this Standard in accordance with the working drawings approved in accordance with the established procedure. B
28、rackets and bushes shall be welded to the surface of the vessels and equipment at the plant of the manufacturer of the equipment. Removable parts shall be installed during installation of the thermal insulation. 2.2. Material of the welded parts shall be selected depending on the material of the cas
29、e of the vessels and equipment to which these parts are being welded. Removable parts, such as single and double pins, shall be produced from general purpose steel low-carbon wire 5-0-4 in accordance with GOST 3282-74; suspension brackets shall be produced from grade 3 steel in accordance with GOST
30、380-71. When special requirements have been stated, protective coatings of the removable parts shall be selected in accordance with GOST 14007-68 and GOST 14623-69. 2.3. Weld seam of the welded bushes shall withstand no less than 1 200 N cutting force. 2.4. No sharp edges or blisters of the material
31、 shall be present on welded and removable parts. Faces of removable and welded parts shall be at 90 angles to the axis of the part. Traces of processing and dents exceeding the limits established by the Standards for the appropriate range of series, shall be allowed on welded and removable parts. 2.
32、5. Maximum deviations of the length of removable parts shall be in accordance with the class “very rough“ of CMEA Standard 302-76, other dimensions shall be 1 IT15 in accordance with CMEA Standard 144-75. 2.6. Maximum deviations of the dimensions of welded parts shall be 1 IT15 in accordance with CM
33、EA Standard 144-75. 2.7. Arrangement of the welded parts on the bodies of the vessels shall correspond to those in the working drawings. The arrangement of the welded parts is given in Appendix 1 (Obligatory). Tolerance of perpendicularity, which is the maximum deviation of the axis of the welded pa
34、rt from the vertical plane on the vertical equipment, and from the horizontal plane (obliquity) on the horizontal equipment, shall be 2 mm for the whole length of the part. N o t e . Installation of the welded parts on the devices for stringing of the equipment (assembly connecting parts, etc) shall
35、 not be allowed. 2.8. Welded parts inside the supporting shells of the vessels and equipment shall be arranged at a pitch from the weld seam of the shell with the case of the vessel, equal to the value stipulated in Appendix 1 (Obligtory) and figure 1. GOST 17314-81 p. 13 2.9. Changing the pitch of
36、a parts welding by shifting of the part from the edge of the weld seam at a distance equal to the thickness of the vessels or equipment wall, shall be allowed if the welded part gets on the weld seam of the case of the vessel or equipment. In this case, the distance between welded parts, located on
37、both sides from the shifted part, shall be equal to the sum of two given pitches. 2.10. Increase of the closing pitch of the welded parts on more than 0.3 of the pitch shall not be allowed. 2.11. Arranging the welded parts only on the surface, which shall be subjected to insulation, shall be allowed
38、 for insulation of separate parts of the vessels and equipment. 2.12. Types of insulation fastening are given in Appendix 2 (Reference). 2.13. Rules of acceptance of the removable parts shall be in accordance with GOST 17769-72 for the items of rough accuracy. 2.14. Packing of removable parts and ma
39、rking of the containers shall be in accordance with GOST 18160-72. APPENDIX 1 (Obligatory) INSTRUCTIONS ON ARRANGEMENT OF THE WELDED PARTS ON THE VESSELS AND EQUIPMENT 1. Welded and removable parts shall be arranged on the vessels and equipment in the following manner: a) on vertical objects: in ver
40、tical and horizontal direction with a pitch of 500 mm, at a distance from the anchor bolts of flanged connection, welded joints or weld seams, which join bottoms (covers) with the bodies of the vessels and equipment, stipulated in figures 1 to 3; b) on horizontal objects : in horizontal direction wi
41、th a pitch of 500 mm, at a distance from the anchor bolts of flanged connection, welded joints or weld seams, which join bottoms (covers) with the bodies of the vessels and equipment, stipulated in figures 4 and 5; in the vertical direction: with a pitch of 500 mm on the upper half of the object; wi
42、th a pitch of 250 mm on the lower half of the object. Pitch measurement shall be carried out from the plane of the horizontal diameter; c) on the bottoms and covers in accordance with figures 3, 5 and 6 (in accordance with an example of figures 3 and 5 on the conic bottoms and covers); d) on the sup
43、ports of the equipment with a pitch of 500 mm and in accordance with figures 1, 2, 4 and 5. Changing of the welding pitch of arrangement of the welded parts by the value multiple to 500 mm shall be allowed for the device with suspension brackets by agreement between the customer and the manufacturer
44、. p. 14 GOST 17314-81 l length of the bolt plus 50 mm; a welded part P, mm2003304006008001 06011001200 Diameter of the equipment, mm Up to 1000 From 1000 to 2000 inclusive Up to 3000 Up to 4000 Up to 6000 Up to 8000 Up to 10000 Up to 1200 Fig. 1 -,-,- GOST 17314-81 p.15 View E l length of the bolt p
45、lus 50 mm; a welded part Fig. 2 p. 16 GOST 17314-81 View Views View View a welded part Fig. 3 -,-,- GOST 17314-81 p.17 l length of the bolt plus 20 mm; a welded part Fig. 4 p. 18 GOST 17314-81 View View View Welding of the parts by the supports a welded part Fig. 5 GOST 17314-81 p. 19 View a welded
46、part Fig. 6 p. 20 GOST 17314-81 APPENDIX 2 (Reference) TYPES OF FASTENING THERMAL INSULATION 1. When thermal insulation is a finished product manufactured from soft or semi-rigid fibrous materials (mineral wool, glass wool, and asbestos) on joints or facings, it shall be fastened by the device of mo
47、dification 1 (figure1). When layers of the materials are up to 100 mm thick and by the device of modification 2 (figure 4), when layers of the material are from 100 to 260 mm inclusive thick. 2. When thermal insulation is a product consisting of one or two layers of hard materials (boards, segments, etc.) it shall be fastened by the device of modification 2 (figures