一、Product Introduction
The Static Evaporation Rate Tester manufactured by Jinan SUPER Technology Co., Ltd. complies with GB/T 18443.5-2010 Performance Test Methods for Vacuum Insulated Cryogenic Equipment – Part 5: Measurement of Static Evaporation Rate in terms of test procedures and measurement quantity.
It adopts the gas mass flowmeter method with liquid nitrogen as the test medium. The instrument uses a gas mass flowmeter to measure the mass flow rate of gas evaporated from the liquid inside the test piece per unit time, and calculates the test evaporation rate and static evaporation rate based on the measured gas mass flow data.
This equipment is applied to the leakage rate detection of LNG cylinders, liquid nitrogen cylinders and liquid oxygen cylinders. It adopts the gas mass method for detection, and is suitable for static evaporation rate measurement of vacuum insulated cryogenic pressure vessels, vacuum insulated cryogenic gas cylinders, vacuum insulated pipes and pipe fittings, as well as other vacuum insulated cryogenic equipment.
二、Main Technical Parameters of Static Evaporation Rate Tester
Test Method: Gas Mass Flowmeter Method
Compliance Standard: GB/T 18443.5-2010 Performance Test Methods for Vacuum Insulated Cryogenic Equipment – Part 5: Measurement of Static Evaporation Rate
Accuracy: ±1% F.S
Linearity: ±0.5% F.S
Repeatability: ±0.2% F.S
Response Time: ≤4 sec
Pressure Resistance: ≥10 MPa
Data Storage: Test data is automatically saved upon power failure without affecting subsequent tests
Test Medium: LNG, Liquid Nitrogen
Structure Type: Mobile Type

Two working principle diagrams of the static evaporation rate tester.
At present, the equipment adopts the second method — gas mass flowmeter method.

III. Configuration of Static Evaporation Rate Tester
Mass Flowmeter: 4 sets
Flow Test Bench (equipped with level gauge, temperature sensor, pressure sensor and storage battery): 4 sets
Imported Bellows: 4 pieces (2m, 5m)
Inkjet Printer: 1 unit
Mobile Computer Workstation: Branded host, 8G RAM, 1TB hard disk, independent graphics card, 2GB video memory
Data Acquisition Device (with control software): 1 unit

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