CN-122021455-A - Accident emergency liquid pressureless pipeline assessment method and system for enterprises

CN122021455ACN 122021455 ACN122021455 ACN 122021455ACN-122021455-A

Abstract

The invention belongs to the technical field of pipeline evaluation, and provides a method and a system for evaluating emergency liquid pressureless pipelines in accident of enterprises, wherein the method comprises the steps of firstly obtaining the loss of test water according to the volume of the test water and the volume of recovered water; the method comprises the steps of obtaining a loss rate according to the loss amount and the volume of test water, determining whether a leakage phenomenon occurs according to the loss rate, determining the position of a leakage point on a pressureless pipeline to be evaluated if the leakage phenomenon occurs, ending the evaluation, finally determining a leakage form according to the position of the leakage point on the pressureless pipeline to be evaluated and the loss rate, determining whether maintenance is required according to the leakage form, avoiding a maintenance mode only by evaluating the leakage, determining whether the leakage phenomenon occurs according to the leakage form, meeting the use requirement, and ensuring the maintenance requirement, and avoiding the cost problem caused by maintenance on the basis of ensuring the accident liquid transportation.

Inventors

SUN ZHONGJIN
Meng Qingzhai
CAO GUANGMING
WANG MINGQIANG
LI SEN
Bi Linan
KONG YAWEN
ZHANG LIHONG
QI KE

Assignees

山东省地矿工程勘察院(山东省地质矿产勘查开发局八〇一水文地质工程地质大队)
山东省地矿建设有限公司

Dates

Publication Date: 20260512
Application Date: 20260318

Claims (10)

1. An accident emergency liquid pressureless pipeline assessment method in a production enterprise, which is characterized by comprising the following steps: Acquiring the volume of test water injected into a pressureless pipeline to be evaluated and the volume of reclaimed water; Obtaining the loss of the test water according to the volume of the test water and the volume of the recovered water, and obtaining the loss rate according to the loss and the volume of the test water; determining whether leakage occurs according to the loss rate, if so, determining the position of the leakage point on the pressureless pipeline to be evaluated, otherwise, ending the evaluation; and determining a leakage form according to the position of the leakage point on the pressureless pipeline to be evaluated and the loss rate, and determining whether an evaluation result of maintenance is needed according to the leakage form.
2. The method of claim 1, wherein the loss is equal to a difference between the volume of test water and the volume of reclaimed water, and the loss rate is equal to a ratio of the loss to the volume of test water.
3. The method for evaluating the emergency liquid pressureless pipeline in the accident of enterprises according to claim 2, wherein, when the loss is calculated, adding a correction factor: ; Wherein, the The corrected loss amount; Is a correction value; The volume of water attached to the inner wall of the pipeline in unit area; is the length of the pipeline; Is the inner diameter of the pipeline.
4. The method for evaluating emergency liquid pressureless pipelines in production enterprises according to claim 1, wherein if the loss rate is larger than a first preset value, the leakage is considered to occur, when the leakage occurs, if the leakage is in the form of leakage points at the bottom of the pressureless pipeline to be evaluated and the loss rate is smaller than or equal to a second preset value, maintenance is not needed, otherwise, maintenance is needed, if the leakage is in the form of leakage points at the side of the pressureless pipeline to be evaluated and the loss rate is smaller than or equal to a third preset value, transportation of dangerous chemicals is not needed, otherwise, maintenance is needed, if the leakage is in the form of leakage points at the top of the pressureless pipeline to be evaluated and the loss rate is smaller than or equal to a fourth preset value, maintenance is not needed, otherwise, the second preset value is larger than the first preset value, the third preset value is larger than the second preset value, and the fourth preset value is larger than the third preset value.
5. The method of evaluating an emergency liquid pressureless pipe for an accident in a manufacturing facility according to claim 4, wherein the predetermined values are increased as the viscosity of the dangerous chemical increases, and the predetermined values are decreased as the viscosity of the dangerous chemical decreases.
6. The method for evaluating emergency liquid pressureless pipes for industrial accidents according to claim 5, wherein each preset value is increased or decreased by: ; ; Wherein, the Increasing the value for each preset value; in order to set the value of the preset value, =1, 2,3,4, Corresponding to the first preset value, the second preset value, the third preset value and the fourth preset value, respectively; To adjust parameters; Is a preset standard liquid viscosity; To an increased viscosity; A value reduced for each preset value; To adjust parameters; to reduce the viscosity after the reaction.
7. An accident emergency liquid pressureless pipe assessment system in a production enterprise, comprising: The data acquisition module is configured to acquire the volume of test water injected into the pressureless pipeline to be evaluated and the volume of reclaimed water; The loss rate determining module is configured to obtain the loss amount of the test water according to the volume of the test water and the volume of the recovered water; the leakage phenomenon judging module is configured to determine whether leakage phenomenon occurs according to the loss rate, if so, determine the position of the leakage point on the pressureless pipeline to be evaluated, and if not, end the evaluation; And the evaluation module is configured to determine a leakage form according to the position of the leakage point on the pressureless pipeline to be evaluated and the loss rate, and determine an evaluation result of whether maintenance is needed according to the leakage form.
8. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the method for assessing an emergency liquid pressureless pipe in an enterprise accident according to any one of claims 1 to 6.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the steps of the method for assessing emergency liquid pressureless pipes in an enterprise accident, as claimed in any one of claims 1 to 6, when the program is executed by the processor.
10. A computer program product, characterized in that the computer program product comprises a computer program which, when being executed by a processor, implements the steps of the method for assessing an emergency liquid pressureless pipe in an enterprise accident according to any one of claims 1 to 6.

Description

Accident emergency liquid pressureless pipeline assessment method and system for enterprises Technical Field The invention belongs to the technical field of pipeline evaluation, and particularly relates to a method and a system for evaluating accident emergency liquid pressureless pipelines of enterprises. Background The accident emergency liquid pressureless pipeline is usually used in liquid warehouse, production workshop and other places, and is used only when accident leaks to convey dangerous chemical accident liquid to the accident emergency pool. The pipeline has extremely low utilization rate, is never used by many enterprises, has long construction years, is often laid underground by accident emergency liquid pressureless pipelines, is difficult to check, and can not be basically replaced if damaged, and has extremely high maintenance difficulty. When the current full water test or negative pressure evaluation method is adopted for evaluation, the leakage phenomenon can be evaluated, once leakage is evaluated, maintenance is needed, but when the accident occurrence probability of enterprises is extremely low, dangerous chemicals are commonly used for barreling, when single barrel is leaked, the total pollution mathematical expectation value is extremely low, at the moment, although some pipelines do not necessarily meet the full water condition, but meet the low-loss or no-loss flux test, the pipelines can still be used continuously, if the leakage is evaluated, the maintenance cost is increased, even temporary production stopping is needed in enterprises, the cost is high, and the evaluation result obtained by the current evaluation method cannot confirm whether the use requirement is met when the leakage phenomenon occurs, and whether the maintenance is needed or not. Disclosure of Invention In order to solve the problems, the invention provides a method and a system for evaluating emergency liquid pressureless pipelines in accident of enterprises, which determine whether maintenance is needed according to a leakage form, avoid a maintenance mode when leakage is evaluated, determine whether the use requirement is met when the leakage phenomenon occurs according to the leakage form, and whether the maintenance is needed according to the leakage form, and avoid the cost problem caused by the maintenance on the basis of ensuring the transportation of the accident liquid. In order to achieve the above object, the present invention is realized by the following technical scheme: In a first aspect, the invention provides a method for evaluating accident emergency liquid pressureless pipelines in enterprises, comprising the following steps: Acquiring the volume of test water injected into a pressureless pipeline to be evaluated and the volume of reclaimed water; Obtaining the loss of the test water according to the volume of the test water and the volume of the recovered water, and obtaining the loss rate according to the loss and the volume of the test water; determining whether leakage occurs according to the loss rate, if so, determining the position of the leakage point on the pressureless pipeline to be evaluated, otherwise, ending the evaluation; and determining a leakage form according to the position of the leakage point on the pressureless pipeline to be evaluated and the loss rate, and determining whether an evaluation result of maintenance is needed according to the leakage form. Further, the loss is equal to the difference between the volume of the test water and the volume of the reclaimed water, and the loss rate is equal to the ratio of the loss to the volume of the test water. Further, during the calculation of the loss amount, a correction coefficient is added: ; Wherein, the The corrected loss amount; Is a correction value; The volume of water attached to the inner wall of the pipeline in unit area; is the length of the pipeline; Is the inner diameter of the pipeline. Further, if the loss rate is larger than a first preset value, the leakage phenomenon is considered to occur, when the leakage phenomenon occurs, if the leakage form is that a leakage point is positioned at the bottom of the pressureless pipeline to be evaluated, and the loss rate is smaller than or equal to a second preset value, maintenance is not needed, otherwise, maintenance is needed, if the leakage form is that the leakage point is positioned at the side surface of the pressureless pipeline to be evaluated, and the loss rate is smaller than or equal to a third preset value, transportation of dangerous chemicals is not needed, maintenance is not needed, otherwise, maintenance is not needed, if the leakage form is that the leakage point is positioned at the top of the pressureless pipeline to be evaluated, and the loss rate is smaller than or equal to a fourth preset value, maintenance is not needed, otherwise, the second preset value is larger than the first preset value, the third preset value is larger than the