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Quality inspection of plate heat exchanger
Source: Time: 2020-09-17 15:44:07 Hit:
The quality of plate heat exchangers has always been the primary consideration for users. Without a good quality, no matter how cheap the price is, it is useless. Yojo is committed to the production and development of heat exchangers. Of course, it is also important for plate heat exchangers. The inspection is very experienced, let's see how the quality of the plate heat exchanger should be guaranteed.
Quality inspection content:
The inspection during the equipment manufacturing process includes raw material inspection, inter-process inspection and pressure test.(1 Check the size and geometry of raw materials and equipment parts.
(2) The chemical composition analysis, mechanical property analysis test and metallographic inspection of raw materials and welds are collectively referred to as failure test.
(3) Inspection of internal defects of raw materials and welds. The inspection methods are non-destructive testing, including: radiographic testing, ultrasonic testing, magnetic particle testing, penetrant testing, etc.
(4) Equipment pressure test, including water pressure test, medium test, air tightness test, etc.
Pressure test and air tightness test:
The manufactured heat exchanger shall be subjected to pressure test or increased air-tightness test on the connection joints, tube side and shell side of the heat exchanger tube sheet. The pressure test includes hydraulic pressure test and air pressure test. Generally, the water pressure test is performed on the heat exchanger, but when the liquid cannot be filled due to the structure or support, or the residual test liquid is not allowed under the operating conditions, the air pressure test can be used. If the medium is very toxic, very dangerous, or there is no trace leakage between the tube and the shell side, the air tightness test must be increased.
YOJO has become a domestic professional manufacturer integrating R&D, production and sales of plate heat exchangers. It is widely used in heating, HVAC, chemical, machinery, metallurgy, steel, medicine, oilfield, shipbuilding, light industry and other industries. There are offices and two R&D and production institutions in large and medium cities across the country, forming a complete sales and service network, exported to more than a dozen countries and regions in Europe, America and Southeast Asia, and long-term production of international heat exchangers for the United States, France, Singapore, Thailand, etc. Manufacturers supporting, provide customers with a full range of services.
Tag: Plate heat exchanger quality, plate heat exchanger research and development
