Pipeline station instrument equipment grounding device

Abstract

The invention discloses a pipeline instrument equipment grounding device. In the pipeline station instrument equipment grounding device, a barrier grounding ring (1) is added between an electric interface (13) and an anti-explosion barrier (2) of instrument equipment; the bottom of the barrier grounding ring (1) is connected with a line nose 1 (9) by a bolt 1(7) and a nut (8); the line nose 1(9) is connected with a grounding lead (5); the other end of the grounding lead (5) is connected with a line nose 2(10); the line nose 2(10) is connected to instrument grounding flat steel (11) by a bolt (15) and a nut; the instrument grounding flat steel (11) is connected with electric power grounding net flat steel (12); and the grounding lead (5) is fixed with an instrument protection tube (4) by acable bonding tape 1(6), a cable bonding tape 2(16) and a cable bonding tape 3(17). The pipeline station instrument equipment grounding device is safe, improves the precision and the stability of theinstrument equipment, is convenient to operate and maintain, and reduces equipment investment and construction cost.

Description

technical field [0001] The invention relates to a grounding device for instrumentation equipment in a pipeline station. It relates to the technical field of piping systems. Background technique [0002] For the grounding of instrumentation equipment in pipeline stations, in previous projects, the grounding of instrumentation equipment was directly connected to the buried instrument protection pipe, and the grounding method was realized through the contact between the instrument protection pipe and the earth, or by connecting with the instrument. The grounding method of the process pipeline and process equipment to achieve grounding. [0003] If the grounding of the instrument equipment is directly connected to the buried instrument protection pipe, the grounding of the instrument equipment is realized through the contact between the instrument protection pipe and the earth. Due to the large area of ​​the pipeline station and the wide distribution of instrument equipment, th...

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Problems solved by technology

[0003] If the grounding of the instrument equipment is directly connected to the buried instrument protection pipe, the grounding of the instrument equipment is realized through the contact between the instrument protection pipe and the earth. Due to the large area of ​​the pipeline station and the wide distribution of instrument equipment, the area where If the grounding potential of different areas is different, there will inevitably be a potential difference between the instrumentation equipment in different areas. It is easy to be directly attacked by lightning without damaging the instrumentation equipment under the condition of rapid discharge of the current; The equipment is connected by jumper wires, and the process equipment is grounded to realize the grounding of the instrumentation equipment. If the jumper wire is disconnected due to reasons such as weak connection or long-term corrosion, the potential difference will also be generated when lightning occurs. The strong current generated can easily cause damage to the on-site instrumentation equipment; at the same time, because many instrumentation equipment installed on the process pipeline are far away from the process equipment due to the long process pipeline, the grounding of the on-site instrumentation equipment through the process equipment is far away. , when lightning occurs, it is impossible to discharge the strong current at the nearest point as soon as possible, and the long-term current impact will easily cause damage to the instruments on site. Therefore, no matter which grounding method is used above, it will affect the instrument equipment. Safety, Reliability, Stability and Accuracy

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