Self-deblocking pipe cleaner provided with rotary heads and gas throttling preventing device
A technology of gas throttling and pipe cleaning, which is applied in the direction of cleaning hollow objects, cleaning methods and utensils, chemical instruments and methods, etc., to achieve the effects of strong plugging removal ability, wide application range, and improved pigging effect
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0044] Such as figure 1 , 2 As shown, a self-blocking pig with a rotating head and a gas throttling prevention device includes a pipe 1, a leather cup 2, a cylindrical frame 3, an air bag 4, an air bag cavity 5, a spring fixing column 9 and a spring 10 , the pig is in the pipeline 1, the leather cup 2 surrounds the outside of the cylindrical frame 35, the air bag 4 is connected with the spring 10 in the air bag cavity 5, the spring 10 is fixed on the spring fixing column 9, and the pig The device also includes a pigging module, a self-clogging module and a gas throttling prevention module;
[0045] To prevent gas throttling the module prevents throttling as follows:
[0046] k1: the first battery pack 113 outputs a direct current and flows into the inverter 112;
[0047] k2: the current flowing out of the inverter 112 is an alternating curr...
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