Hydrostatic testing machine
An overview of the
This device is suitable for all kinds of high pressure gas cylinders do hydrostatic test measurement method, using industrial computer to empty cylinders weighing bottle, water injection, exhaust, the bottle says
Weight, water pressure test, etc of a complete set of operation test. Through the experiments, can accurately measure the cylinder's volume residual deformation rate, to ensure the safe use of gas cylinders. The product
According to the G/B T9521 cylinder hydrostatic test method design, manufacture. Applicable to the design, manufacture nominal working pressure is 16-25 m P. A, nominal capacity
For 30-200 - l, satisfy the compressed gas cylinders with different types and specifications of the steel lined with toroidal winding cylinder inspection on a regular basis.
The principle
Outside the cylinder hydrostatic test machine is mainly used for measuring method of the test cylinder pressure test at the same time get the bottles of the volume of residual deformation rate, using the computer
Control. Its working principle is: subjects in a special bottle of water within the set of the subjects bottle by high-pressure pump pressurized, after setting pressure automatically
Cancelling pressure, to withstand voltage test subjects bottles, at the same time, the cylinder volume expansion under the testing pressure, squeeze a part of the water in the water jacket to the quantity
Water cup, this part is the bottles of the volume of deformation by testing, through the transmission of water collection system to industrial control, gas cylinders after unloading, elastic deformation
Lost, so the water in the cup back to the water jacket, did not return the amount of water is a bottle of residual deformation capacity, transmission through the water collecting system to work
Machine control, residual deformation volume and the percentage of the total deformation is a cylinder volume residual deformation rate.
Structural components
The entire device is composed of four most: hoisting equipment, weighing equipment, water jacket portion of cylinder hydrostatic test and test. Gas cylinders to the weighing area, hung
Weigh the empty bottle weight, data transfer to computer. By industrial PC set parameters, pressure, gas bottle weight sensor detection system, a data acquisition card
Into the industrial computer. Industrial computer can control the whole test process operation, and water jacket hydrating - exhaust - measuring cup filling water exhaust pipeline leak - on - pressure maintaining test - down
- pressure - pressure relief - to store data.
function
1, outside measurement method to test on a cylinder hydrostatic test can measure the cylinder volume residual deformation rate at the same time.
Outside the cylinder measuring method using gas-liquid booster, hydraulic parts adopt stainless steel material;
A variety of different types of water jacket and meet the requirements of a variety of test specifications;
Software using the labview software, record the corresponding test pressure and residual deformation;
The pressure test, industrial computer acquisition test levels, end of the highest water level, the highest pressure and water level, through the calculation of upper machine
Get a cylinder full deformation value, residual deformation and residual deformation rate;
Industrial weighing sensor data, the sensor can accurately show the residual deformation;
2, realize the automatic control function: industrial PC set parameters, booster pump automatic start to cylinder pressure, pressure and nominal pressure pressure maintaining test leakage, no leakage
Booster pump leakage automatic booster to the automatic pressure maintaining test pressure, pressure maintaining complete automatic unloading and automatic calculation shows that the residual deformation, deformation rate, deposit automatically
Store the test results, and can be arbitrary print test reports; Print content including test items, work pressure, test time, cylinder factory number, model,
Test number and inspectors, etc
3, the system automatically save all stress in hydrostatic test period, the deformation data - time curve, pressure - time curve and deformation, deformation
Pressure curve. All trials in the historical data can be back to check.
4, pressure test bench is equipped with manual button, the computer control fails, can be a manual test. Emergency stop devices appear, can be manually
Internal pressure relief in addition to the sample and equipment
5, test device design maximum working pressure of 40 mpa, the actual test pressure control precision is not lower than 10 psig, the equipment is mainly test the cylinders in the resistance
Under the pressure of the residual deformation, and is the necessary testing equipment testing institutions
Main technical parameters
(1) test pressure: 0 to 40 mpa
(2) the test scope: cylinder diameter: cylinders from 219-219 mm length: 600-2000 - mm
(3) working air pressure: 0.6-0.6 MPa
(4) working air flow: p 1 m3 / min
(5) the external power supply voltage: 220 v / 50 hz
(6) control adopts: industrial PC + (NI) data acquisition card, control software
Software applications: independent development based on labview application development environment
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