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GB 24161-2009: [GB/T 24161-2009] Periodic inspection and evaluation of composite cylinders for breathing apparatus
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[GB/T 24161-2009] Periodic inspection and evaluation of composite cylinders for breathing apparatus
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Basic data | Standard ID | GB 24161-2009 (GB24161-2009) | | Description (Translated English) | [GB/T 24161-2009] Periodic inspection and evaluation of composite cylinders for breathing apparatus | | Sector / Industry | National Standard | | Classification of Chinese Standard | J76 | | Classification of International Standard | 23.020.30 | | Word Count Estimation | 23,244 | | Date of Issue | 2009-06-25 | | Date of Implementation | 2010-01-01 | | Quoted Standard | GB/T 970.1; GB/T 3464.1; GB/T 3934; GB/T 9251; GB 12135; GB/T 12137; GB/T 13005; GB 15382; TSG Z7001; Gas Cylinder Safety Supervision | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 8, 2009 (No. 148 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the respirator with aluminum liner fully wrapped carbon fiber composite gas cylinders Periodic inspection and evaluation of the basic methods and technical requirements. This standard applies to the nominal water capacity not exceeding 12 L, nominal working pressure of not more than 30MPa, for filling breathing gas, temperature range of -40��C ~ 60��C and repeatable mobile inflatable composite cylinders. This standard does not apply to vehicles with composite cylinders. | GB 24161-2009: [GB/T 24161-2009] Periodic inspection and evaluation of composite cylinders for breathing apparatus
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Periodic inspection and evaluation of composite cylinders for breathing apparatus
ICS 23.020.30
J76
National Standards of People's Republic of China
Periodic inspection and evaluation respirator composite cylinders
Posted 2009-06-25
2010-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 inspection bodies and inspection cycle test item 2
5 Test Preparation 2
6 Visual inspection and evaluation 3
7 internal inspection and evaluation 4
8 bottle inspection and evaluation 4
9 hydrostatic test 4
10 dry the inside of 5
11 bottle valve inspection and installation 5
12 tightness test 5
Working 13 examination 5
Appendix A (informative) visual inspection of composite cylinders Assessment Table 7
Annex B (informative) Measurement Method outer cylinder hydraulic test equipment checklist 8
Annex C (informative) composite cylinder hydrostatic test data in Table 9
Annex D (informative) composite cylinders Periodic Inspection Report 10
Annex E (informative) composite cylinders scrapped notice 11
Annex F (informative) Typical damage and repair of composite cylinders legend 12
Foreword
All the technical contents of this standard is mandatory.
The reference to the standard ISO 11623 "fiber composite cylinders Periodic inspection and testing" and the US Compressed Gas Association CGAC-6.2 "Fiber
Increased inspection and evaluation of the appearance of the high-pressure gas cylinders, "the part.
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E and F are informative appendices.
This standard by the National Standardization Technical Committee cylinder (SAC/TC31) and focal points.
This standard was drafted. Shanghai Eagle Safety Equipment Co., Ltd., Dalian Boiler and Pressure Vessel Inspection Institute, Fushun City Boiler Pressure
Vessel Inspection Institute, Hong Technology Co., Ltd. Shanxi.
The main drafters of this standard. Dry crane Ao, Hu Jun, Guokui Wen, Shou positive, Li Xinwen.
Periodic inspection and evaluation respirator composite cylinders
1 Scope
This standard specifies the respirator with aluminum liner fully wrapped carbon fiber composite cylinders (hereinafter referred to as. composite cylinders) Periodic inspection and evaluation
Basic methods and technical requirements.
This standard applies to nominal water capacity not exceeding 12L, the nominal working pressure of not more than 30MPa, filling breathing gas for use temperature
Range of -40 ℃ ~ 60 ℃ can be repeated inflatable mobile composite cylinders.
This standard does not apply to vehicles with composite cylinders.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 970.1 round die Part 1. round die and round die holder type and size (GB/T 970.1-2008,
ISO 2568. 1988, MOD)
GB/T 3464.1 Machine and hand taps - Part 1. General shank machine and hand taps (GB/T 3464.1-2007,
ISO 529.1993, MOD)
GB/T 3934 common thread gauge technical conditions (GB/T 3934-2003, ISO 1502.1996, MOD)
GB/T 9251 Test methods for hydraulic cylinders
GB 12135 Periodic inspection station technical conditions
GB/T 12137 Test method for airtightness of cylinders
GB/T 13005 cylinders term
GB 15382 cylinder valves General technical requirements
TSGZ7001 special equipment inspection agency approval rule
Gas Cylinder Safety Supervision
3 Terms and Definitions
GB/T 13005 and established the following terms and definitions apply to this standard.
3.1
Aluminum alloy materials for the interior, the exterior continuous carbon fiber impregnated with resin along the circumferential and longitudinal winding and cured as a carrier layer
Composite cylinders.
3.2
Composite cylinder surface roughness and other objects repeated friction and a surface-induced damage. Performance composite cylinder surface roughness and Paul
Sheath or reduce wound layer thickness and the like.
3.3
Separating the fiber bundle wound layer caused by the impact between the outer surface of the wound separation or separation layer and the metal liner between the fiber bundle itself.
It showed whitish scar, subsurface hollow signs and the like.
3.4
Crack winding layer due to fall or blunt objects hit and caused by delamination or scratched, and metal liner deformation.
3.5
The maximum amount of deformation of the cylinder volume measured by subtracting the residual deformation.
3.6
1.1 times the average grant amount of elastic deformation, marked cylinders tag.
4 inspection agency, inspection and testing cycle project
4.1 inspection agency
4.1.1 Periodic inspection of composite inspection agency, should have the conditions meet the requirements of GB 12135 and press TSGZ7001 by country
House special equipment safety supervision and administration department for approval.
4.1.2 The inspection agency must be equipped with test performance composite cylinders of special test instruments and equipment. If the cylinder inside glimpse of light, low-power magnifying glass,
Electronic balance, can be inserted into the endoscope composite cylinders, rectangular device, meter stick, depth sounder, in line with GB/T 3934 of M18 × 15-6H threaded plug
Regulation, M18 × 1.5-6h thread ring gauge or in compliance with the appropriate standards, and the threaded cylinder valve adapted to other specifications threaded plug, threaded ring and the like.
4.2 Periodic Inspection
Periodic inspection cycle 4.2.1 composite cylinders are generally inspected once every three years.
4.2.2 During use, if found that composite cylinders have serious corrosion damage or doubts about its safety and reliability, should be carried out in advance
test.
4.2.3 stock or disable more than one inspection cycle composite cylinders shall be tested prior to enabling.
4.3 Test Project
Composite cylinders Periodic inspection items include visual inspection, internal inspection, bottle inspection, hydrostatic testing, internal drying cylinder valve and air tightness test
Test.
5 Test preparation
5.1 Record
5.1.1 Only by checking the registration and inspection of composite cylinders manufacturing marks mark. And "composite cylinders visual inspection evaluation form" (see Appendix A) on
Detailed records of the following. the use of gas cylinder units, test dates, number of cylinders, cylinder volume of water, nominal working pressure, date of manufacture, test pressure
Due date, thread size and so on.
5.1.2 without obtaining national special equipment safety supervision and management department of the manufacturing license of manufacturing production of composite cylinders, manufacturing and inspection mark
Key inspection mark or incomplete items will not be blurred examination nor documented registration composite cylinders, press scrap.
Over the design life of composite cylinders 5.1.3 upon registration shall not test, press scrap.
5.1.4 Early inspection of composite cylinders shall identify the cause and make records.
5.2 composite cylinder media should be air, oxygen or nitrogen-oxygen gas mixture, for unknown media bottle, cylinder valve can not open the gas cylinder should be
Seized bottles were stored in order to be properly handled separately. After the filling of oxygen cylinders, the test should be strictly forbidden to do tests or oil degreasing.
5.3 dismantling the cylinder valve
If there are composite cylinders of compressed gas, should slowly open the cylinder valve, deflate, until confirmed bottle gas pressure and environmental pressure a
When delivered, the composite cylinders on the cylinder clamping fixture, with appropriate methods remove the cylinder valve.
5.4 composite inner and outer cylinder surface cleaning
Available neutral detergent and water temperature not exceeding 60 ℃ clean water to clean the surface of the composite inner and outer cylinders of dirt, corrosion, loose table
Surface protection layer and other surface debris impede inspection.
5.5 composite cylinder external cleanup
Inspectors should be able to see the entire outer surface of the composite cylinders. If the sticker to cover up damage to composite cylinders or suspected loss
Injury, should be removed sticker. Suspicious injuries signs include. signs or stickers scratched, obviously affected by the impact of traces of oil and so on. Some paste
Material will swell in water or water affect the test results, must be removed.
5.6 composite cylinder internal cleanup
5.6.1 remove any debris composite cylinders inside.
5.6.2 Check all debris removed from the composite cylinders and are recorded in "composite cylinders visual inspection assessment table".
6 Visual inspection and evaluation
6.1 prior to the hydrostatic test shall be visually inspected and test results recorded in the "composite cylinders visual inspection assessment table".
6.2 rating injury
The degree of injury is divided into three levels.
An injury. refers to minor injury, such as a protective layer or wear a small amount of glass fiber wear, minor scratches and obvious impact marks.
Such damage will not adversely affect the safety of composite cylinders and continue to use, it is normal and acceptable, may continue to use (as shown in Figure F.2,
Figure F. 5, Figure F. 7 and F. 10).
Two injury. refers to the wear and tear damage to a proportionally larger damage, as shown in Figure F. 3 shows the wear. Such damage should be repaired,
Pressure test after repair. If the protective layer mend noticeable bulge or falling pressure test composite cylinders should be scrapped.
Three injury. refers to more than two injury wear, scratches and composite cylinders by structural damage impact damage or injury caused by thermal, chemical
Goods of corrosion damage. Composite cylinders such damage should be scrapped (as shown in Figure F.1, Figure F.4, Figure F.6, Figure F.8, FIG F.9 and F.11).
6.3 Criteria
6.3.1 Wear
A. depth of less than 0.25mm (as shown in Figure F.2).
Two. depth greater than 0.25mm, which is the glass fiber layer, but the carbon fiber layer intact (Figure F.3).
Three levels. the degree of injury more than two carbon fiber layers injured (Figure F.4).
6.3.2 scratched
A. regardless of the number or direction, depth of less than 0.25mm (as shown in Figure F.5).
Two. depth greater than 0.25mm, which is the glass fiber layer, but the layers of carbon fiber intact.
Three. more than two degree of injury, the carbon fiber layer has been exposed or damaged (Figure F.6).
6.3.3 impact damage
A. glass fiber layer appear white spots or area of not more than 50mm2 stratification (Figure F.7).
Class 2. exposed fiberglass, but carbon fiber layer intact.
Three. surface area greater stratification, the carbon fiber layer is exposed to structural deformation or composite cylinders (Figure F.8 and F.9).
6.3.4 Layered
A. pale scar confined to the surface of the glass fiber layer and the area no more than 50mm2.
Two. white scar depth is greater than 0.25mm, but the carbon fiber layer intact.
Three. more than two degree of injury, the carbon fiber layer has been damaged.
6.3.5 Structural Damage
Three. the original structure of the composite cylinder is changed, such composite cylinders or cylinder arc face any concave, convex phenomenon; internal mesh
Unit display metal liner deformation; and the cylinder valve connecting portion showing distortion and so on (see Figure F.9).
6.3.6 Thermal Damage
A. only the protective layer is black smoke, external surface cleaning treatment (Figure F.10).
Three levels. local composite cylinder drum kits, carbon fiber layer have significant thermal damage, shape deformation, deformation of the metal liner (Figure F.11).
Chemicals 6.3.7 Corrosion Damage
Three. winding layer by chemical corrosion damage, you should check whether the outer surface of the composite cylinders have chemical signs of corrosion. Such as winding layer
Partially discolored, dirty or sticky resin, unknown chemicals remain in the inner and outer surfaces of composite cylinders, etc. (eg F.1).
7 internal inspection and evaluation
7.1 by checking only composite cylinders inside the safe use of impact defects, the right of one of the following subjects bottles, scrap press.
a) the inner surface of the cracked composite cylinders;
b) within the linear deformation of composite cylinders;
c) the estimated depth of the pitting corrosion pits larger than 0.7mm composite cylinders;
d) the estimated depth of a linear corrosion pits larger than 0.5mm composite cylinders;
e) dispersion of the estimated depth of pitting corrosion pits larger than 0.5mm composite cylinders.
7.2 recording position and test results of the above defects in the "composite cylinders visual inspection assessment table".
8 bottle inspection and evaluation
8.1 Remove the ring, with the naked eye or low magnification magnifier by just checking the end face of the bottle, seal ring groove and bottle thread. Where the following circumstances
One bottle to be tested, according to scrap.
a) finish end surface cracks composite cylinders;
b) seal ring groove has cracks, dents and other damage in composite cylinders;
c) starts counting from the bottle, the continuous thread effective with fewer than 12 teeth composite cylinders;
d) Effective thread cracks or crack defects of composite cylinders;
e) Effective thread has more than two teeth gap, and the gap length of more than 1/5 of the circumference of the depth of more than 1/3 of high composite tooth
Cylinders;
f) the effective number of thread gap of less than 12 teeth composite cylinders.
Repair 8.2 bottle thread
There was gentle bottle thread corrosion, scratches and burrs can be used in line with GB/T 3464.1 of M18 × 1.5-6H tap repair, and then
After the accord with GB/T 3934 of M18 × 1.5-6H threaded plug test. For other specifications of silk thread, the application of appropriate standards
Cone and thread plug gauge repair and inspection. When the test results fail composite cylinders should be scrapped.
8.3 test results are recorded in the bottle "composite cylinders visual inspection assessment table".
9 hydrostatic test
9.1 to be tested bottles filled with water should be allowed to stand in the indoor test device more than 8h. Before the test, the application of rubber hammer tap to be tested bottle bottle, drained attached
The inner wall of the bottle of bubbles filled with water.
9.2 bottles shall be tested by only pressing GB/T 9251 requirements with measurable pressure test.
9.3 measured before the test vial to be tested and the water jacket test water temperature, the temperature difference between the water to be tested and bottle water jacket test water should not
At 3 ℃.
9.4 hydrostatic test pressure should be between 100% and 103% of the hydrostatic test pressure test bottles to be labeled, the dwell time of at least 60s.
9.5 hydrostatic test, the bottle is leaking pressure during Paul embossed with fallback phenomenon composite cylinders should be scrapped.
9.6 pressure test, should also be measured volume residual deformation rate, volume residual deformation rate of more than 5% of the composite cylinders should be scrapped. Correct
There are marked cylinders Cylinder volume elastic deformation (REE), the volume of the elastic deformation of the cylinder (EE) hydrostatic test should be measured, EE value
REE values exceed the mark on the cylinder of the cylinder should be scrapped.
10 Internal drying
10.1 drying method and requirements
10.1.1 pressure-tested qualified composite cylinders must be carried out only by internal drying.
10.1.2 the bottle upside down and for some time to bottle the residual water drain net, then use dry air purge, internal heat or other appropriate
Method to dry the inside.
10.1.3 When the internal drying temperature should not exceed 65 ℃; time should be long enough to ensure that the bottle is completely dry.
10.2 Drying health check
With the endoscope or small bulbs observation bottle drying conditions, such as the inner wall has been fully in dry state, you can install the cylinders.
11 bottle valve inspection and installation
11.1 Pingfa test
11.1.1 threaded cylinder valve response integrity check, if the gap, crack, incomplete or broken thread, the cylinder valve should be scrapped.
11.1.2 the body deal with inspection and, if abnormal deformation of the cylinder valve should be scrapped.
11.1.3 thread deformation repair
Bottle with screw connection being dropped, the impact caused by deformation of the thread should be used in line with GB/T 970.1 of M18 × 1.5-6h round
Dies for threaded cylinder valve repair, and then in line with GB/T 3934 of M18 × 1.5-6h threaded ring test. For other specifications
Threaded applications comply with the appropriate standard round die and threaded ring for repair and inspection. The cylinder valve should be scrapped when test results failed.
11.1.4 cylinder valve tightness test
Only the cylinder valve should be by air tightness test. If leakage should be replaced with new cylinders. For replacement of wearing parts such as seals, have to
Written authorization to the cylinder valve manufacturer and under its guidance, and requirements should be GB 15382 to re-do the valve tightness test.
11.2 cylinder valve assembly
On the cylinder valve thread and seals After applying the right amount of grease, first hand the bottle screw screwed into the cylinder valve and then treated with a composite gas cylinders clip it
Bottle, then tighten the cylinder valve torque wrench, torque is 80N · m ~ 100N · m.
Note. do not enter the rotating cylinder valve can not be forcibly screwed, you should check the cylinder valve thread.
12 air-tightness test
Composite cylinders 12.1 cylinders after the end of the installation shall be carried out only by tightness test.
12.2 Test apparatus and test methods shall comply with the requirements of GB/T 12137 inundation law.
12.3 tightness test of the medium is air, test pressure composite cylinders nominal working pressure.
12.4 tightness test, the test pressure in the bottle leaks composite cylinders, it should be scrapped.
Note. Due to improper assembly cylinder valve leakage of composite cylinders, allowing the re-assembly after its test.
Examination of the work of 13
13.1 check mark
13.1.1 inspection of composite cylinders, reference should "Gas Cylinder Safety Supervision" by the only good test mark.
13.1.2 check mark using 39mm × 22mm label sheets.
13.1.3 check mark Content.
a) Inspection Unit Code;
b) test color;
c) Inspection date (month and year);
d) the next test date (month and year).
Example.
13.1.4 Test color should follow the "Gas Cylinder Safety Supervision" requirement.
13.1.5 check mark should be at the end of the barrel near the bottle shoulder, circumferentially distributed. Each of the check mark should be suitably spaced arrangement
neat.
13.1.6 test high marks word 5mm ~ 10mm, should be broadly consistent with manufacturing marks, writing should be clear.
13.1.7 check mark paste method
In the composite cylinders with non-playing stenciled way to do check mark. Methods for testing on composite cylinders labeled as follows.
a) water with 400 # sandpaper polished on the surface slightly 13.1.5 predetermined position, an area of about 45mm × 25mm;
b) the inspection label on polished place, covered with a transparent epoxy test label.
13.2 inspection records and scrap
Save 13.2.1 Test record
The following recording applications written or electronic form to save the file.
a) "visual inspection of composite cylinders assessment form";
b) "cylinder hydraulic test equipment inspection table" in Appendix B;
c) "composite cylinders Hydrostatic Test Data Sheet" in Appendix C;
d) "composite cylinders Periodic Inspection Report" in Appendix D;
e) "composite cylinders scrapped notice" in Appendix E.
13.2.2 scrap
Scrapped composite cylinders filled by the inspector "composite cylinders scrapped notice", the technical person in charge of reviewing affix the seal of inspection, the cross
To archive and composite cylinders property unit scrapped composite cylinders were crushed or amputated and other destructive process.
Appendix A
(Informative)
Composite cylinder visual inspection evaluation form
Composite cylinder visual inspection evaluation form
Cylinders using Address Postal Code Phone
Cylinder water capacity cylinders number of cylinders color inspection date
Nominal working pressure Date of manufacture Degree Have gas bottle valve
You are repaired
Hydrostatic test date
External inspection
Signs of heat damage nicks for wear
Have any abnormal deformation stratified
The outer surface of the description
Defect position description
other
Eligible scrap judgment to be repaired
Internal inspection
There are the types and quantities of debris odorless
The inner surface condition description
Defect position description
other
Eligible scrap judgment to be repaired
Check the bottle screw
Thread size thread status description
Thread Status Assessment
other
Eligible scrap judgment to be repaired
Cylinder valve inspection
No cylinder valve cylinder valve and cylinder connecting thread status description
Airtightness description
Disc whether to replace if
Composite cylinders condition
Eligible cylinders adhesive labels
Attach a label to be repaired cylinders repair cleaning water pressure dropped
Other suggestions
The labeling of cylinders scrapped
Inspector qualification certificate number date
Appendix B
(Informative)
Hydraulic cylinders with measurable test equipment checklist
Hydraulic cylinders with measurable test equipment checklist
Standard bottle number.
Calibration date
year month day
Check time
-. -
Test pressure /
MPa
Standard volume
Full deformation
Δ Vp B/mL
Found volume
Full deformation
Δ Vp/mL
Residual volume
Deformation /
mL
Full deformation
Volume relative error
δ≤1%
Verifier Remarks
Description. 1. Standard full volume deformation Δ Vp B (mL), obtained from the standard bottle calibration certificate.
2. Volume residual deformation value (mL), deformation after pressure release should be zero.
Appendix C
(Informative)
Composite cylinders Hydrostatic Test Data Sheet
Composite cylinders Hydrostatic Test Data Sheet
Equipment Type. Standard bottle number. Test methods. external test temperature measurement method. ℃ Test Date. The date
Property Unit. Manufacturing Country. manufacturing units. Cylinder Model. Cylinder water capacity. L Nominal working pressure. MPa
Cylinders
Numbering
Factory
date
hydrostatictest
pressure/
MPa
compress time/
Volume
Full deformation
(Δ Vp) /
mL
Volume
Residual deformation value
([Delta] Vp ') /
mL
Volume
Residual deformation rate /
Happened
What bottle
Anomalies
test results
Pass Fail
Experimenter
Description. 1. Volume residual deformation rate = [volume residual deformation value (Δ Vp ')/full volume deformation (Δ Vp)] × 100%.
2. Composite cylinder volume residual deformation rate of ≤5% qualified.
3. Hydrostatic test pressure hydrostatic test pressure composite cylinders tested by bottle labels prescribed.
4. For the test invalid test bottles if the test pressure has been raised to the test pressure test bottle more than 90%, should increase the pressure test
0.7MPa, or increased to 1.1 times the original test pressure (whichever is smaller value), re-test.
5. For unqualified composite cylinders shall be indicated treatment, such as re-testing, scrapped.
Appendix D
(Informative)
Composite cylinders Periodic Inspection Report
Composite cylinders Periodic Inspection Report
(No. word)
According to "Gas Cylinder Safety Supervision" and "respirators periodic inspection of composite cylinders and assessment" requirement, the test, inspection your unit
Only composite cylinders, by this inspection and testing stations, qualified composite cylinders, a total only, bottle number is.
Notice is hereby given.
Inspector (signature or seal)
Technical unit responsible (signature or seal) (unit test chapter)
year month day
Appendix E
(Informative)
Composite cylinders scrapped notice
Composite cylinders scrapped notice
(No. word)
According to "Gas Cylinder Safety Supervision" and "respirators composite cyli...
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