US 12,332,095 B2
High-detection accuracy differential flowmeter capable of being repeatedly disinfected
Longchao Zhao, Guangdong (CN); Caixin Sun, Guangdong (CN); and Hui Dong, Guangdong (CN)
Assigned to GUANGZHOU LANSWICK MEDICAL TECHNOLOGY CO., LTD., Guangzhou (CN)
Appl. No. 18/031,876
Filed by GUANGZHOU LANSWICK MEDICAL TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Jul. 19, 2022, PCT No. PCT/CN2022/106345
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2023/115923, PCT Pub. Date Jun. 29, 2023.
Claims priority of application No. 20111596328.0 (CN), filed on Dec. 24, 2021.
Prior Publication US 2024/0369394 A1, Nov. 7, 2024
Int. Cl. G01F 1/40 (2006.01); G01F 1/34 (2006.01); G01F 1/36 (2006.01); G01F 1/42 (2006.01)
CPC G01F 1/40 (2013.01) [G01F 1/34 (2013.01); G01F 1/36 (2013.01); G01F 1/42 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A high-detection accuracy differential pressure flow meter capable of being repeatedly disinfected, comprising: a body (1) and a processing module (2); wherein the body (1) is connected to a gas pipeline, and the body (1) is provided with an antihypertensive component (3), and two ends of the antihypertensive component (3) are provided with a first air inlet (31) and a second air inlet (32) respectively; the first air inlet (31) is connected and communicated with the processing module (2) through a first interface (33), and the second air inlet (32) is connected and communicated with the processing module (2) through a second interface (34), and both the first interface (33) and the second interface (34) are provided on the body (1);
wherein the antihypertensive component (3) further comprises at least one group of bidirectional decompression components; each group of the two-way decompression components comprise two decompression devices (4), and two of the two-way decompression components in each group are independent and symmetrically set up, and capable of decompressing forward and reverse air flow on the gas pipeline;
wherein the decompression device (4) comprises a circulation (5); an outer wall of the circulation (5) is connected to the inner wall of the body (1), and the circulation (5) is provided with a first airway (51), a second airway (52), and a third airway (53), and a fourth airway (54); wherein:
the first airway (51) and the fourth airway (54) are connected in a straight way, and the first airway (51) and the fourth airway (54) run through two ends of the circulation (5);
the second airway (52) is located above the first airway (51), and an extension direction of the second airway (52) in the circulation (5) is the same as that of the first airway (51), and the second airway (52) is connected to the first airway (51) through the third airway (53); and
the angle between the third airway (53) and the second airway (52) is an acute angle, and a circulation direction of the third airway (53) is different from the gas circulation direction in the first airway (51).