Intelligent safety protection device and method for hot ammonia defrosting
A technology of safety protection device and hot ammonia, applied in emergency protection circuit device, emergency protection device with automatic disconnection, circuit device, etc. Liquid hammer phenomenon, ensure safety, ensure safety effect
Active Publication Date: 2016-09-07
江苏亚盛金属制品有限公司
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Problems solved by technology
[0005] In the prior art, there is no effective detection and prevention method for hot ammonia defrosting accidents
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0037] see figure 1 As shown, the hot ammonia defrosting intelligent safety protection device of the present invention is uniformly provided with multiple groups of vibration sensors 6 and acoustic wave sensors 7 in the insulation layer 2 on the periphery of the ammonia pipeline 1; The valve 3 is equipped with a linkage electronic regulating valve 4 at the front end of the hot ammonia valve 3 .
[0038] The vibration sensor 6 detects the vibration information of the pipeline before the liquid hammer occurs in the ammonia pipeline;
[0039] The acoustic wave sensor 7 detects the fluid sound information in the ammonia pipeline; the vibration sensor 6 and the acoustic ...
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The invention discloses an intelligent safety protection device and method for hot ammonia defrosting. Multiple groups of vibration sensors and acoustic sensors are evenly arranged in a thermal insulation layer on the periphery of an ammonia gas pipeline; a hot ammonia valve is arranged on the ammonia gas pipeline; a linkage electronic regulator valve is arranged at the front end of the hot ammonia valve; the vibration sensors detect pipeline vibration information before a fluid hammer in the ammonia gas pipeline; the acoustic sensors detect fluid voice information in the ammonia gas pipeline; the vibration sensors and the acoustic sensors transmit the detected vibration information and voice information to a microcomputer processor in real time; and the microcomputer processor compares and judges the collected information and determines whether hot ammonia defrosting is generated or not and whether a fluid hammer phenomenon can be generated or not. By the intelligent safety protection device and method, judgment can be carried out in real time according to the fluid hammer state; the safety of the pipeline is ensured; and the fluid hammer phenomenon is avoided.
Description
technical field [0001] The invention relates to the technical field of ammonia gas protection, in particular to an intelligent safety protection device and method for hot ammonia defrosting. Background technique [0002] In recent years, there have been many hot ammonia defrosting accidents in the refrigeration industry, resulting in the liquid hammer phenomenon. The liquid hammer phenomenon refers to the sudden obstruction of the liquid flow in the pressurized pipeline, and the liquid behind has a certain kinetic energy. The kinetic energy suddenly Release, the phenomenon of large pressure fluctuations caused by rapid changes in the liquid flow rate, the pressure rises instantaneously, resulting in the bursting of the welding joints of the pipeline connections with serious welding defects, and the rupture of the accessories of the single freezer, resulting in the leakage of liquid ammonia and casualties. [0003] Before the liquid hammer is generated, there will be a "dong ...
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IPC IPC(8): H02H5/08
CPCH02H5/086
Inventor 吕文良吕忠华
Owner 江苏亚盛金属制品有限公司