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ProductsHebei Runfeng cryogenic equipment Co., Ltd. is a new high-tech enterprise specializing in the design, manufacture and research of low-temperature pressure vessels.
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NewsThe company invests a large amount of income every year for the development and test of new technologies and new products. Strive to create a standard enterprise in low temperature industry.
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13
2023
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04
Inspection link of the use of cryogenic insulated gas cylinders
Low-temperature storage tank insulation performance is not good, the safety valve emissions will frequently increase geometrically. So in the absence of vacuum in the tank, you must use a professional vacuum pumping unit to make up for the vacuum in the tank jacket, once the vacuum is restored to the factory value, it can significantly improve the insulation performance of the tank.
The current use of overdue LNG Dewar bottle has a large security risks. Therefore, the use of low-temperature insulated gas cylinders should be checked frequently, and professional inspection agencies should be asked to inspect the cylinders once every three years. Regular inspection items include: safety accessories and piping, valve inspection, static evaporation rate test, air tightness test, etc. Dewar cylinder periodic inspection is particularly important, must be to have the testing of qualified enterprises, the regular inspection of low-temperature insulated gas cylinders.
Low-temperature gas cylinder inspection program includes the following: data review, appearance inspection, internal inspection, safety accessories and valve inspection, pressure test, gas tightness test, static evaporation rate test, if necessary, the need to measure the true.If necessary, it is necessary to measure the vacuum, leakage rate, gas leakage rate and non-destructive testing.
Ultrasonic thickness measurement
1.Connect the ultrasonic flaw detector of the two measuring line
2.Open the ultrasonic thickness gauge power supply until the boot is complete.
3.Adjust the speed of sound to 5900
4.Measure the thickness of the standard block, low-temperature gas cylinder testing requires those information, the thickness of the standard block is 4.0.
5.Apply the adhesive to the part to be measured, gas cylinder testing, put the probe in the location, nitrogen cylinder testing station phone, look at the required data, record the measurement results.
Bottle valve loading and unloading
1.Push the cylinder so that the cylinder nozzle in the bottle valve fixture position, adjust the motor lift so that the cylinder nozzle is facing the fixture bayonet, low-temperature adiabatic gas cylinder testing station phone, adjust the fixture so that it is in the middle position, convenient thread expansion.
2.Press the cylinder clamping, so that the clamping cylinder clamping cylinder
3.Press the cylinder unscrew button, at this time the motor rotates to unscrew the bottle valve, feel the bottle valve has been loose when press the stop button (red), the motor stops rotating at this time, press the cylinder loose, take off the bottle valve by hand.
4.Push the cylinder with the valve removed by hand to the position of the flip cylinder, press the cylinder flip out button to let the cylinder flip out, the disassembly of the cylinder valve is completed.
Pressure Vessel,Small Liquid Nitrogen Dewar,cryogenic cylinder,cryo cylinder,Co2 Welding Gas Bottles
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