Electrostatic risk reducing device and method for pipeline oil
A technology for pipe transportation of oil products and static electricity, applied in the direction of static electricity, electrical components, pipeline systems, etc., can solve the problems of harsh application conditions, the inability to conduct static electricity of oil products, and the inability to meet the flow rate requirements of oil products, so as to reduce the risk of static electricity, The effect of eliminating the risk of static electricity
Pending Publication Date: 2021-08-06
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0003] In the prior art, the methods for eliminating static electricity in pipeline oil products mainly include: (1) The metal casing is grounded to leak static electricity. It takes a certain amount of time to eliminate static electricity and cannot meet the oil flow rate requirements, so it is still difficult to avoid the occurrence of instantaneous discharge accidents
(2) Install a pipeline static eliminator, but the efficiency of electricity removal is very low, and the application conditions are relatively harsh
Method used
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0033] figure 1 A structural block diagram of an electrostatic risk reduction device for pipeline transportation of oil products according to an embodiment of the present invention is shown. Such as figure 1 As shown, the electrostatic risk reduction device includes a pipe section 101 , an injection pump 102 , a conductivity monitor 103 , a density meter 104 and a control module 105 .
[0034] The pipe section 101 is serially connected to the oil pipeline through a flange connection. Specifically, the pipe section 101 is the main equipment of the whole device. In one embodiment, the diameter of the pipe section 101 is consistent with that of the oil pipeline, both of which are 100mm.
[0035] A density meter 104 is arranged on the pipe sectio...
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The invention provides an electrostatic risk reducing device for pipeline oil. The device comprises a pipe section, a density meter, an injection pump, a conductivity monitor and a control module, wherein the pipe section is connected to an oil pipeline in series in a flange connection manner; the density meter is used for detecting the charge density of oil in the pipe section in real time; the injection pump is used for receiving an injection control instruction and injecting an antistatic additive into the pipe section under the control of the injection control instruction; the conductivity monitor is used for monitoring the conductivity of the oil in the pipe section in real time; and the control module is used for sending the injection control instruction to the injection pump and monitoring the change of the conductivity when the charge density is greater than a first threshold value and the duration is greater than a first preset time. With the device and the method, the charge density of the oil can be detected in real time, after the charge density is larger than a specific value and lasts for a certain time, the static risk of the oil is reduced by adding the antistatic additive to improve the conductivity of the oil, and the conductivity monitor is used for monitoring the conductivity in real time to ensure the adding effectiveness of the antistatic additive.
Description
technical field [0001] The invention relates to the technical field of petrochemical oil and gas storage and transportation, in particular to a static electricity risk reduction device and method for oil pipeline transportation. Background technique [0002] During the transportation of oil products, a large amount of static electricity will be generated during the transportation of oil products due to reasons such as low electrical conductivity of the oil products, excessive oil delivery speed, and impurities in the oil products. GB 12158-2006 "General Guidelines for the Prevention of Electrostatic Accidents" and GB 13348-2009 "Static Safety Regulations for Liquid Petroleum Products" clearly stipulate that a liquid static eliminator can be installed at the end of the pipeline to reduce static electricity accumulation. However, at present, static eliminators for oil pipelines are mainly passive static eliminators, which eliminate static electricity from oil products by induc...
Claims
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Login to View More IPC IPC(8): F17D1/08F17D3/12F17D3/01F17D5/00H05F3/00
CPCF17D1/086F17D3/12F17D3/01F17D5/00H05F3/00
Inventor 李义鹏刘全桢孙立富李亮亮
Owner CHINA PETROLEUM & CHEM CORP