(1) Equipment usage, working principle and characteristics
The external test method hydraulic test line is a test equipment used to detect the residual deformation rate of gas cylinders, including weighing, watering, testing (measurement of residual deformation rate), loading and unloading, water discharge, and drying.
The hydraulic test section of the pipeline should be automatically carried out by the computer controlled test process, and automatically complete the pressure increase (self-tightening pressure), pressure holding, pressure relief, pressure increase (water pressure test pressure), pressure holding, and pressure relief; through the computer Collect hydraulic test pressure data and pre-tightening pressure data, and automatically calculate the residual deformation rate. The entire hydraulic test process is automatically completed, and related test data and graphs can be stored.
Its working principle is: put the test bottle in a special water jacket, and use a high-pressure pump to pressurize the test bottle.
After reaching the set pressure, it automatically enters the pressure-holding state, and the pressure test is performed on the tested bottle. At the same time, the gas cylinder expands under the test pressure, squeezing a part of the water in the water jacket into the measuring cup, so that the The amount of water increases, and the increased amount of water is the full deformation of the cylinder (automatically transmitted to the industrial computer). After the cylinder is depressurized, the elastic deformation disappears, so the water in the measuring cup returns to the water jacket, but the water in the measuring cup is still It is more than before the cylinder is pressurized. The extra water is the volume residual deformation of the cylinder (automatically transmitted to the industrial computer), and the ratio of the volume residual deformation to the total deformation is the volume residual deformation rate of the cylinder.
The flexible guide rail conveying hydraulic test line is equipped with a smart flexible guide rail suspension conveyor, which can realize manual fixed-point horizontal conveying, electric hoist lifting, easy, convenient, stable and reliable.
This machine is simple to operate and easy to maintain. It is fully developed in accordance with the national standard GB/T9251-2011 "Cylinder Pressure Test Method" and the American DOT standard. It is an ideal selection equipment for natural gas cylinders and seamless gas cylinder manufacturers and testing units.
Cylinder parameters
1. Length of gas cylinder: 800~2700mm
2. Diameter: 279~540 mm
3. Volume: 40~310L
4. The weight of the gas cylinder: ≤150Kg
(3) On-site working environment
1. Relative humidity: ≤85%
2. Compressed air: 0.4~0.7MPa
3. Saturated steam: ≥140ºC, 0.5Mpa
4. Electricity: 415V±10% 50Hz±2Hz
5. The driving track height of the workshop: 7m
(4) Technical specifications and requirements
1. Production program and usage: 8 hours/shift, 2 shifts/day, 252 days/year.
2. Beat: 16-20 pcs/hour/set (including loading and unloading time, taking 65L steel gas cylinder as an example, holding pressure for 30s)
3. System design pressure: 50 MPa
4. Water pressure test pressure: 20~40MPa
5. Minimum resolution of residual deformation: 0.1g
6. Water volume measurement accuracy: ≤0.1ml
7. Gas cylinder weighing range: 600kg, accuracy of electronic scale: 200g
8. Accuracy of pressure sensor: 0.25%
9. Precision pressure gauge: 0.25 level (PSI, MPa double reading value) Working pressure gauge: 1.0 level
10. Saturated steam temperature/pressure: 150ºC/0.4-0.5MPa
Product Parameters
Feeding power conveying line---dynamic weighing of empty bottles---clamping and flipping---automatic filling---upper cap---full bottle hanging weighing and volume measurement---manual translation feeding-- -Automatically fall into the water jacket, automatic water replenishment and exhaust---Airbag automatic sealing---Hydraulic pressure test pressure, pressure retention, pressure relief, storage test results---Airbag automatic retraction, sealing release, automatic cylinder lifting- --Manually transfer to the unloading area---Unloading jacket cover---Clamping and turning rollers for conveying and feeding---Automatic water pouring and drying (compressed air steam source and pipe valve are provided by the buyer)---Out Material power conveyor line
Expansion online testing machine
Testing pressure:0~60MPa(adjustable)
Testing efficiency:16~20pcs/hour
(2 main engine,four water jacket,50L CNG cylinder as a example)
Working air source pressure:0.6~1.0MPa;
Working gas source flow:1.5 m3/min;
Water volume measurement accuracy:≤0.1g;
External power supply voltage:220V /50Hz;
Internal pressure sealed threaded joint;
Working medium:water;
Max design pressure:60MPa;
Pressure increasing rate:≥0.25MPa/s
Main functions of the equipment:
1) Bottle mouth sealing (using our company's patent-internal pressure sealed threaded joint. Patent number: ZL2008 1 0234345.7)
2) Airbag sealing water jacket (utility model patent: ZL2009 2 0042903.0)
3) Equipped with pressure fine-tuning device
4) Automatic water injection (using the principle of fuel gun)
5) The weight of the empty bottle is weighed in a dynamic way, the weight of the bottle is weighed in the hanging way, the weight of the empty bottle and the weight of the bottle are automatically read, and the volume is automatically calculated
6) System background parameter setting
7) Standard bottle hydrostatic test and hydrostatic test report
8) Parameter setting of cylinder water pressure test
9) Automatically collect and save water volume (deformation value), pressure, and time data sets
10) Dynamic display of pressure-water inflow, pressure-time, time-water inflow curve
11) Cylinder water pressure test, automatically calculate the residual deformation rate of the test cylinder and determine the test result, and save the test data automatically;
12) Can query and reproduce the test parameters and test process of the gas cylinders that have been subjected to the hydraulic test
13) Automatically generate and output hydraulic test report
14) It can switch between automatic and manual tests to ensure that every manual action can be realized
15) Computer remote control and maintenance functions
16) The smart flexible guide rail type suspension conveyor can realize manual fixed-point horizontal transportation, electric hoist lifting, easy and convenient, stable and reliable.
Test screen display
1. The relevant data of the tested gas cylinder, the batch number of the tested gas cylinder, the factory number, the nominal working pressure, the hydraulic test pressure, the volume of the gas cylinder, and the date of manufacture;
2. Test date;
3. Temperature of test water;
4. Pressure-time curve of the tested gas cylinder;
5. The actual volume of the tested gas cylinder;
6. The total deformation of the tested gas cylinder;
7. The volumetric residual deformation rate of the tested gas cylinder;
Company Profile
WUXI LONGTERM is the manufacturer in the field of hot spinning forming machinery in China, with a well established reputation for outstanding performance.Recognized worldwide for its proprietary design and manufacturing know how. LONGTERM has been involved in this industry since 1990. We got here on the basis of providing strong support to clients who buy our machinery. our machines have been exported to Russia, Ukraine, USA, UK, Turkey, Australia, Kenya, Egypt, India etc...
When you 'down' - our job is get you back 'up'
Servicing on our machinery has been greatly facilitated by advances in remote control software. This allows us to troubleshoot issues half way around the world and gets you up and running in time frames!
We understand what our customers need to stay competitive:
Custom quality parts
At an affordable rate
In the fastest possible
Meeting these goals requires precision in everything we do.
We are proud to offer these hot spin forming services. But more importantly, we're proud we've helped our customers meet their component manufacturing demands, to grow their business.
Packaging & Shipping
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Q: How can we guarantee quality?
A: Always a pre-production sample before mass production; Always final Inspection before shipment;
Q: What can you buy from us?
A: All the machine for the CNG cylinder production line.
Q: Why should you buy from us not from other suppliers?
A: Wuxi Longterm Group is group corporation which are professional supplier of cable, LPG gas cylinder, steel drum, LNG and CNG
machinery with more than 25 years of experience and a strong professional R & D team
Q: What services can we provide?
A: Online technical support, On-site installation, Spare parts...
We need to know the following information to make the quotation to you:1. The technical drawing of the cylinder.
2. Daily capacity.
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