This standard applies to the construction of cement mortar lining coating machine coating of steel pipelines with a nominal diameter of more than 400mm. SY/T 4074-1995 Coating process of cement mortar lining coating machine for steel pipelines SY/T4074-1995 Standard download decompression password: www.bzxz.net

Petroleum and Natural Gas Industry Standard of the People's Republic of ChinaSY
SY/ T 407495
Cement mortar lining with coatirg machine on the inside surface of steel pipes
Published on March 11, 1995
China National Petroleum Corporation
Implemented on September 1, 1995
Petroleum and Natural Gas Industry Standard of the People's Republic of ChinaCement mortar lining with coating machine on the inside surface of steel pipes
SY/ T 4074-95
Editor: China Shichi Natural Gas Corporation Infrastructure Engineering Bureau Approval department: China National Petroleum Corporation Petroleum Industry Press
1995 Beijing
Cement mortar lining coating machine coating construction. Process flow chart Construction preparation
Construction conditions
Material preparation
Equipment, instruments and personnel organization
Construction pipe section cleaning
General provisions
Work step flow
Equipment, instruments and personnel organization
Plane layout
Key points of operation
6 Rust removal of the inner surface of the construction pipe section
Work step flow chart
Equipment, instruments and personnel organization
Plane layout
Key points of operation
Coating operation
Work step flow chart
Equipment, instruments and personnel organization!
Plan layout
7.4 Key points of operation
Maintenance of mortar lining
Packing between pipe sections and at heads:
General rules
Plan layout
Step-by-step flow chart
Equipment: instruments and personnel organization
Key points of operation
Quality requirements and inspection of raw materials
Quality standard and inspection of water-soluble polymers
Construction safety
Appendix A
Appendix B
Appendix C
Appendix D
Small mortar lining coating construction equipment. Instruments · Cement mortar coating construction personnel organization Cement mortar coating machine main technical parameters · This standard uses the inquiry description
Additional description
Steel pipe cement mortar lining coating machine coating technology
Text description
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China National Petroleum Corporation document
(95) CNPC Technology Supervision No. 156
Notice on the approval and release of ten oil and gas industry standards including "Oil Industry Heating Furnace Connection Regulations" to all relevant units:
"Oil Industry Heating Furnace Safety Regulations" and other eleven standards (draft) have been reviewed and approved and are now approved as oil and gas industry standards for publication. The numbers and names of the various standards are as follows:
SY 0031--95
SY T 0086---95
SY/T 4074—95
sY7r4075-95
SY T 4076--95
SY/T 4077 -95
Safety regulations for heating furnaces used in petroleum industry (replacing SYJ 31 ---881
Electrical insulation standard for cathodic protection pipelines
Cement mortar lining coating process for steel pipelines
Centrifugal forming construction process for fly ash cement mortar lining of steel pipelines
Pneumatic extrusion washing process for liquid coating inner coating of steel pipelines
Pneumatic extrusion coating process for cement mortar lining of steel pipelines
SY T 4078--95
SY /T 4079--95
SY /T 4080-95
SY 4081-95
SY/T 408295
Liquid coating for internal coating of steel pipes Patching machine Patching process
Specification for construction and acceptance of petroleum and natural gas pipeline crossing projects
Method for detection of leakage of pipelines and storage tanks
Technical standard for seismic identification of steel spherical storage tanks Specification for construction and acceptance of gas field well site equipment and pipeline installation projects
The above standards shall be implemented from September 1, 1995. China National Petroleum Corporation
March 11, 1995 1.0.1 This standard is specially formulated to ensure the quality of steel pipeline cement mortar lining coating machine coating construction and improve the cost of pipeline use. 1.0.2 This standard applies to the construction of steel pipeline cement mortar lining coating with a nominal diameter of 40011m or more. 1.0.3 Reference standards GB 175--a2 GB 1344 1 Fly ash silicate cement GB 983--85 GB7 T 8923 GB 81-85 GBI 235---82 S1J 4022-88 SYJ 7 :--84
Portland cement, Portland cement
Slag Portland cement, pozzolanic silicate cement and powderStainless steel welding rod
92Rust grade and rust removal grade of steel surface before paintingTest method for mechanical properties of ordinary concrete
Code for construction and acceptance of industrial pipeline engineering
Code for construction and acceptance of oil gathering and transportation pipelines
Code for design of anti-corrosion engineering for steel pipelines and storage tanksQuality standard and test method for sand used in thin-wall concreteJC1J 5279
CECS 1089
Technical standard for cement mortar lining of water supply steel pipelines in geotechnical areasIn addition to complying with the provisions of 1.0.4
of this standard, the coating process of cement mortar lining of steel pipelines shall also comply with the provisions of the relevant current national standards. 2.0,1
The symbols and their explanations used in the process flow chart of this standard are shown in Table 2.0.1Symbols and explanations
Operation process
Material transfer
Construction work and self-inspection
Quality inspection
Table 2.0.1
Indicates the operation tester during work
Table requires inspection while operating
Special inspection of parts inspection points
3 Coating construction of cement mortar lining coating machine
Process flow chart
The coating construction process flow chart of cement mortar lining coating machine should comply with the provisions of Figure 3.0.1.
Construction preparation
Pigment cleaning of flow workers
Supervision between sections and
Packing of adjacent places
Figure 3.0! www.bzxz.net
Inside the construction pipe section
Surface removal
Maintenance
Comprehensive coating operation
Cement sand coating machine coating construction process flow chart 4 Construction preparation
4.1 Construction conditions
4.1.1 The construction of the construction pipe section shall comply with the relevant provisions of the "Oilfield Gathering and Transportation Pipeline Construction and Collection Specifications"
4.1.2 Tees, elbows, and valve groups shall not be used in the construction pipe section, and the diameter and thickness of the old steel pipe shall not be too large.
When the construction pipe section is welded, the curvature radius of the pipeline shall not be less than 4.1.3
The slope shall not be less than 10~
35111, 1
The length of the construction pipe section should not exceed 1km.
The ambient temperature during the mortar lining coating construction should not be lower than 5℃4.1.5
After the construction pipe section passes the pressure test, except for the two ends, the middle part can be completely returned. 4.1.6
4.2 Material preparation
4.2.1 The cement used for mortar lining should meet the following requirements4.2.1.1 Mortar lining should use silicate cement of No. 425 or above, which should be silicate cement, slag silicate cement or pozzolan silicate cement4.2.1.2 The technical indicators of cement should meet the relevant requirements of "Silica Cement, General Portland Cement" and "Mineral Portland Cement, Pozzolan Silica Brine Filtered and Pulverized Coal Dead Portland Cement".
4.2.1.3 During the transportation and storage of cement, attention should be paid to the attachment and waterproofing. 4.2.1.4 Cement should have a factory certificate and retest report. 4.2.2 The sanding of water-mixed mortar lining shall comply with the following 4.2.2.1. Natural fine sand should be used, and the content of harmful impurities should not be more than 3% of the total mass of sand. 4.2.2.2 The sand should have good gradation, and all sand particles should be able to pass through the 1.25mm square sieve hole. For the 0.315111m square sieve hole, the sieve residue should be 49%~60%; for the 0.16mm square sieve hole, the residue passing through the sieve hole should not exceed 5%. 4.2.2.3 The firmness of sand particles should comply with the relevant provisions of the "Quality Standards and Test Methods for General Concrete Sand".
4.2.3 Drinking water should be used for mixing cement mortar lining; if other water sources are used, the water quality should comply with the provisions of Table 4.2.3. Water quality of mixing water
Salt content (mg/ml)
so:(ng/ml)
pH value
4.3 Equipment and personnel organization
4.3.1 The equipment and instruments used in each process during the lining construction process can refer to the provisions of Appendix A of this standard.
4.3.2 The personnel organization during the lining construction process can refer to the provisions of Appendix B of this standard.
5 Pipe cleaning in construction sections
5.1 General provisions
51 For pipe cleaning in construction sections with a nominal diameter of less than 100m, pneumatic cleaning devices shall be used; for pipe cleaning in construction sections with a nominal diameter of 700111m and above, manual cleaning may be used. 5.2 Process flow chart
The process flow of pipe cleaning in construction sections shall comply with the provisions of Figure 21. Construction preparation
Figure 5.2. 1
Transmitter
Submersible pipe
Pipe cleaning in construction sections
Installation of transmitting
receiving device
Process flow chart of pipe cleaning process
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