SY 0324-2001 Specification for acceptance of prefabricated insulation for direct buried steel high temperature pipelines

SY 0324-2001 Direct buried steel high temperature pipeline insulation prefabrication construction acceptance specification SY0324-2001 standard download decompression password: www.bzxz.net

ICS 23.040.10
Record number: 9590—2001
Petroleum and natural gas industry standard of the People's Republic of China P
SY/T 0324—2001
Specification of construction and acceptance of heat insulation for buried high temperatrue steel pipeline2001 - (019 - 24 Issued
20H02 -1 - 01 Implementation
National Economic and Trade Commission Issued
Petroleum and natural gas industry standard of the People's Republic of China Standard for heat insulation of buried high temperatrue steel pipelines
Prefabrication construction and acceptance specification
Specification nf anstiuctint arid succepuance af heatingulution for buried high temperatrim ateel jilxlin:SY/T 0324—200L
Compilation: China National Petroleum Corporation Engineering Technology Research Institute Approval department: National Economic and Trade Commission Before the meeting
This standard is based on the requirements of China National Petroleum Corporation Quality and Safety Standardization [1999, No. 34], and is compiled by China National Petroleum Corporation First Engineering Technology Research Institute
In the process of compiling this standard, the compilation team followed the relevant national guidelines and policies, carried out extensive investigations and research, and put forward the draft of the standard on the basis of carefully summarizing the current construction experience of the prefabrication of the insulation structure of the thermal insulation pipe and the joints, and verified the opinions of relevant units in the form of review, and made a review and rectification of the main problems. Later, the Construction Professional Standardization Committee of China National Petroleum Corporation, together with relevant departments, reviewed and determined the summary
The ten main contents of this standard include: general principles, insulation structure, Materials, insulation prefabrication, marking, storage and transportation, installation, quality inspection, safety and environmental protection, acceptance inspection, etc.
This standard is submitted by: Zhongtong Shipu Natural Gas Planning Group Engineering Technology Research Institute
This standard is edited by: Yaoludao Jiang Insulation Material Factory, Tianjin Zhongde Moisture Retention Material
This standard is mainly drafted by Morrison Law Firm and Zhang Hongyuan ||tt| |This standard is issued by the Engineering Technology Research Institute of China National Petroleum Corporation.
Temperature-promoting structure
3 Materials
Energy-saving system
General provisions
4.2 Network layer engineering
4.3 Inorganic quality assurance
4.5 In addition
4.5 Prefabrication of pipe fittings
4.! Surface treatment of the most comfortable structure
5 Marking, storage and transportation
5.2 Traffic
5.3 Description
6.1 General regulations
6.3 Pipe fittings, safety of nodes
? Wind foundation inspection
Part 1
7.2 Process control
7.3 Inspection and supervision
Safety meeting and environmental protection
9 Project handover and acceptance
Standard application and terminology
Appendix Direct buried steel high temperature prefabrication insulation construction and acceptance specification clause explanation
1..1 In order to ensure the insulation prefabrication of direct buried steel high temperature node (hereinafter referred to as high temperature channel), strengthen the quality of work and formulate water standards. 1.0.2 This standard is applicable to the prefabrication, installation and acceptance of high-pressure leakproof pipes with a nominal diameter of 50-800rm and a suitable temperature of 1.56)-3ht. 1. The preparation, construction and acceptance of high-pressure leakproof pipe insulation shall comply with the provisions of relevant national mandatory standards in addition to the implementation of this standard. 2 Insulation structure
2.0.1 The insulation unit suitable for leakproof pipes shall be selected according to the operating temperature and the buried environment according to Table 2.0.1
Table 2.0, 1 Insulation structure
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thick thermal conductivity system effect 1.0W/:-K)
heart floor qualification certificate
pressure product is 250-320t
in the deep heart:
soil nest protection system release 1.IW/【m
sign: and the general proposal of radiation civil management is also determined in the chemical design. 2.0.2
The heat preservation layer should be selected from dynamic type
2.0.3 The inorganic and organic combined heat preservation materials should be used as much as possible; the inorganic heat preservation layer of large-scale and low-energy type heat preservation materials should be selected from high-energy fiber-based heat preservation materials.
2.0.4 The outer protection can be high-grade, steel casing and steel pipe, and the use of chemical protection is used. 2.0.5 The economic thickness of the insulation material is the average thickness of the insulation material, the number of heat conduction strips of the insulation material, the design calculation of underground solar collectors, ground temperature and other conditions: the temperature of the insulation layer cannot exceed 120°C: the interface between the outer protection pipe and the soil filling: the ground The average water level above the center of the pipe is 50°, and the average water level below the center of the pipe is not higher than 60°. 3.0.1 General provisions:
1 The materials must have product quality certificates or factory certificates, specifications, performance and other requirements and meet the relevant provisions of this standard. 2. If the product quality certificate of the material does not contain all the items and marks, there will be doubts about the product quality. The responsible person shall submit it to the statutory inspection department for review and submit an inspection report. The inspection results shall meet the requirements of this standard. 3. If there are material requirements for the storage period, environment and temperature, they shall be handled according to the quality requirements: During storage, facilities such as trade stimulation, water treatment, melting flow, and economic deformation shall be set according to the material types.
3.0.2 The steel production shall meet the requirements of the relevant current national standards. The materials and specifications shall meet the design requirements. 3.0.3 The material sensitivity coefficient of the sliding pre-resistance should not be less than 0.30, the load bearing capacity should not be less than 600t, and the resistance should not be less than 350kg. 3.0.4 The inorganic pseudo-thermal layer of the organic composite type should be made of lightweight microporous calcium carbonate. The performance indicators should meet the requirements of 3.0.4. The dimensional difference and external quality should meet the requirements of G1106g for thermal insulation products.
Decay 3.0.4 Lightweight microporous silicate rot resistance
Density kgn)
Conductive system [W「mK,]
Anti-staining speed (MP-)
Reduction degree)
Water content (%)
180-200
1.12520,1153
Test secretion
(\ 1IF94—1948
The size and limit deviation of semi-rigid fiber insulation materials used in inorganic insulation layers of inorganic and double-tube composite types shall comply with the requirements of "Insulation, mineral wool and its preparation (certificate 1135 and insulation glass wool and its products GT/T13350", and the performance indicators shall meet the requirements of first-class products. 3.0.5 The organic insulation layer of inorganic-organic and double-tube composite types should adopt modified polyisocyanate Refers to foam insulation materials, whose performance indicators should meet the requirements of Table 3.0.5. Table 3.0.5 Performance indicators of thermal insulation materials
F strength (M%)
Double water (wet (%)
Conductivity [W/(n)]
Product battery
Test report method
H112-149
CET: 3—1988
GA109R
GE/T10007-108
SYT 0415—1
3.0.6 The performance index of the ethylene casing shall meet the requirements of Table 3.0.6.1, and the allowable deviation of the overall dimensions shall meet the requirements of Table 3.0.6-2. Table 3.0.6-1
Standard female (MP)
New length)
High density strong ethylene screen casing performance standard
Energy reduction standard
341-965
Through card recovery point (
Hot old excellent (*)
51001 2400
:054H00:
GBT:4472—1584
GT10401992
CE/T: 1((—1992
GR-T 1X-2—1)
/ 1633—1975
GT 36X2193
Installation table 3.4.6-1
Chemical resistance (batch 74) (%)
When the hot name of the northern can be built, the maximum country is when, or the rate is BGU1, 2402; the highest design juice chart becomes 70t excellent multiple lines: wh-
2 chemical point English and the previous foreign long chemical index is the technical extension through the test after the test to know the effective head rate of the long fast plate.
, high density limited ethylene sleeve supervision size allowable deviation 3.0.6-2
Internal source u
Monitoring source (mm))
Natural house (
Degree (u
North Baode
1% pipe head
<1 5% Commercial and Foreign Economic
Measurement method
Use vernier scale
National benefit and control
Use and size
3.0.7 The casing should be selected according to the temperature resistance requirements. Unsaturated ester resin or other scientific resins can be selected. The allowable operating temperature should be greater than 70℃. The appearance quality, dimensional tolerance, water leakage performance, minimum axial tensile strength and minimum draw strength of the glass long pipe should meet the requirements of "Glass Fiber Reinforced Thermosetting Standard Non-solid Sand Hydraulic Pipe 3J838".
3.0, 8 The original intention of the steel casing should be determined by the design. The allowable difference in the outer dimensions of the steel pipe should be The length of the pipe should be in accordance with the provisions of 3.0.8.
3.0.9 Before prefabrication, the appearance, straightness, swivel and thread quality of the pipe should be checked, and the quality should meet the requirements of the current national standards.
Internal strength (mm)
Vertical length (mn)
3.0.A Copper casing dimensions allowable deviation without allowable deviation
<0.2%Pipe length
CL5%Outer diameter
Currency size
Monthly test
Monthly pull and size control
Use air and grid gun or
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