Hydrophobic filter integrity test device
A testing device and filter technology, applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of filter damage, inability to guarantee the sterility requirements of equipment, influence of test results, etc., to achieve a high degree of automation, use Wide-ranging, easy-to-operate effects
Pending Publication Date: 2018-10-02
NA SHENG CLEAN TECH SUZHOU CO LTD
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Problems solved by technology
[0002] In fields such as biology and pharmaceuticals that require aseptic assurance, key equipment such as water for injection storage tanks, liquid dispensing tanks, sterilizers, and freeze dryers that have sterile environment requirements need to be connected to the outside air through hydrophobic filters or Exhaust to achieve pressure balance. At the same time, it is necessary to ensure that the filter element is in a complete state. In practical applications, high-temperature sterilization of equipment often leads to damage to the filter and cannot guarantee the sterility requirements of the equipment. This requires pre-production Integrity testing of filters after production to confirm that the filtration process is in compliance with sterile requirements
The existing technology of testing the integrity of the filter is detected by the detection method of the bubble point, which will affect the detection result due to the inconspicuous bubble point during actual operation
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[0026] The technical solution of the present invention will be described in further non-limiting detail below in combination with preferred embodiments and accompanying drawings.
[0027] Such as figure 1 As shown, the first water storage tank 5 is equipped with a second liquid level gauge L1 for detecting the water level in the tank, and the wetting liquid is connected to the first water storage tank 5 through a fifth pipeline C5 equipped with a fifteenth valve V15. The first water storage tank 5 is connected to an external compressed air source through a sixth pipeline C6, and the sixth pipeline C6 is provided with a pressure control valve V17, an air filter 3 and a fourteenth valve V14. The second water storage tank 4 is connected to the sixth pipeline C6 through the eighth pipeline C8. A fourth pipeline C4 in liquid communication is arranged between the first water storage tank 5 and the second water storage tank 4, and a twelfth valve V12 is arranged on the fourth pipeli...
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The present invention discloses a hydrophobic filter integrity testing device. The hydrophobic filter integrity testing device includes valves, pipes, a first water storage tank (5) and a second waterstorage tank (4); hydrophobic filters (2) connected through the pipes are arranged in the first water storage tank (5) and the second water storage tank (4); a first pressure sensor (P2) and a firstliquid level In the meter (L2) are arranged on the second water storage tank (4); the first water storage tank (5) and the second water storage tank (4) are connected to a compressed air source through the pipes; and the valves is mounted on the pipes. The test device has a wide application range, is easy to operate, is high in efficiency, and can meet the detection requirements.
Description
technical field [0001] The invention relates to the field of filter integrity testing, in particular to a hydrophobic filter integrity testing device. Background technique [0002] In fields such as biology and pharmaceuticals that require aseptic protection, key equipment such as water for injection storage tanks, liquid dispensing tanks, sterilizers, and freeze dryers that have sterile environment requirements need to be connected to the outside air through hydrophobic filters or Exhaust to achieve pressure balance. At the same time, it is necessary to ensure that the filter element is in a complete state. In practical applications, high-temperature sterilization of equipment often leads to damage to the filter and cannot guarantee the sterility requirements of the equipment. This requires pre-production Integrity testing of filters after production to confirm that the filtration process is in compliance with sterility requirements. The existing technology for testing the...
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IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 赵菊霞
Owner NA SHENG CLEAN TECH SUZHOU CO LTD