Online dredging and anti-blocking method for pressure guide pipe

Abstract

The invention discloses an online dredging and anti-blocking method for a pressure guide pipe, and belongs to the field of detection. Three two-position three-way electromagnetic valves, two manual discharge valves and corresponding communicating pipelines are additionally arranged on a pressure guide pipe of a pressure transmitter and a pressure gauge on an original cooling water main pipeline. By switching and operating related valves, on the premise of ensuring that the pressure transmitter continuously detects pressure value data of the cooling water main pipeline online, online cleaning and dredging can be carried out on the pressure guide pipe of the pressure transmitter and the pressure gauge online at any time, blockage of the pressure guide pipe can be reliably prevented, and false alarm of equipment operation parameters and mistaken parking faults can be avoided. The online dredging and anti-blocking method can be widely applied to the fields of operation maintenance and daily overhaul of the pressure guide pipes of various pressure transmitters and pressure gauges.

Description

technical field [0001] The invention belongs to the detection field, and in particular relates to an online dredging and anti-blocking method for a pressure guiding pipe used for instrument detection. Background technique [0002] In the industrial production process, cooling water is usually used to cool the production equipment or process medium, so as to protect the production equipment and the normal production process. Therefore, it is necessary to monitor the pressure in the cooling water pipeline to ensure normal production. required pressure parameters. [0003] see figure 1 As shown in , the nitrogen compressor is a device that compresses and boosts low-pressure nitrogen to the pressure required by the user and delivers it to the user. The low-pressure nitrogen is compressed by the first-stage impeller and then cooled by the first-stage cooler, then sent to the next-stage impeller for compression and cooling until after three times of compression and three times o...

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Problems solved by technology

[0023] Obviously, none of the technical solutions disclosed in the above patent documents can solve the problems faced by the present invention. On the premise of ensuring the continuous and uninterrupted online detection of the pressure value data of the main cooling water pipeline in the pressure transmitter, it can be detected at any time. Technical Problems of On-Line Dredging and Cleaning of Pressure Inducing Pipes

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