CN113450519A - Multidimensional field equipment leakage monitoring system and monitoring method thereof - Google Patents
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- G—PHYSICS
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- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
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- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
Abstract
The invention discloses a multi-dimensional field device leakage monitoring system, which comprises: the medium leakage monitoring module is used for collecting relevant information of field medium leakage; the leakage data edge calculation device is used for analyzing, calculating and processing the field medium leakage related information; and the leakage source determining and predicting early warning platform is used for carrying out early warning judgment processing on the analysis and calculation processing result and pushing the early warning judgment processing result to related responsible personnel. The monitoring method of the field device leakage monitoring system based on the multi-dimension is further disclosed. The invention greatly solves the problems of short detection distance, single mode, low detection precision and the like of the traditional method, has the characteristics of high detection precision, strong timeliness, no influence of field environment and the like, and simultaneously reduces the working strength of the inspection personnel and ensures the personal safety of the inspection personnel.
Description
Technical Field
The invention relates to the technical field of medium leakage monitoring systems, in particular to a multidimensional field device leakage monitoring system and a monitoring method thereof.
Background
At present, in a petrochemical production device, because dynamic and static equipment is dense, leakage points are numerous, and the leakage is often difficult to detect and maintain by inspection personnel in real time, a large number of high-risk process parts and sealing points exist. Leakage sources after a leak occurs are difficult to locate in time and safety risks cannot be investigated in the first time. At present, petrochemical enterprises mostly use the inspection personnel which are firstly divided according to teams and groups and inspection periods, and then the inspection personnel use handheld equipment to detect. When the leakage condition is found, the maintenance personnel are informed to carry out maintenance. In view of the large scope of the inspection, the environmental factors are also severe during the inspection, and the inspection is difficult to detect especially at some inaccessible points. Some key areas may be able to perform a patrol once a day, but inaccessible key areas may be able to perform a routine patrol for several days.
In view of this, the current inspection mode for petrochemical production equipment has the following defects:
1. the manual inspection needs to divide an inspection area in advance according to inspection time and inspection personnel, each inspection personnel needs to inspect a specific area within specific time according to regulations, but due to the comprehensive influence of factors such as weather and environment, the inspection personnel are often difficult to finish an inspection task within specific time, the leakage treatment can be finished within a long time after the leakage occurs, and the timeliness is difficult to guarantee.
2. At present, most petrochemical enterprises adopt a manual inspection mode to detect equipment or devices, inspection personnel detect parts with possible leakage through portable instruments such as a PID detector and an FID detector, but the detection mode is greatly influenced by the manual operation habit and the proficiency of the inspection personnel, and the detection precision is poor. Meanwhile, the informatization of manual inspection is low, inspection information is difficult to be uploaded to a data platform or a server at the rear end for analysis in the first time, and predictive maintenance is difficult to be carried out in time when leakage or abnormal states occur.
3. When daily patrolling and examining and taking place to leak or peculiar smell, the personnel of patrolling and examining need emerge life danger and go to look for the leak point, and in view of on-the-spot sound equipment numerous, some leak point position is far away from ground, and artifical handheld instrument is difficult to be close to the detection site, looks for the leak point and not only wastes time and energy, and the leak point position is difficult to in time discover, still causes the injury to staff's physical and mental health easily.
4. In a traditional mode, an environmental protection department can only monitor large-scale and large-scale areas and cannot go deep into the interior of an enterprise, particularly the interior of equipment or devices, so that only medium leakage at a factory level can be monitored, and when leakage occurs in a large scale, although the leakage occurring in which factory can be monitored, in view of large area of the factory, the leakage accident caused by the failure of which equipment or pump in the factory cannot be obtained, the field leakage condition can be confirmed only by performing leak tracing; in addition, when small-scale leakage accidents occur in a factory, the leakage accidents cannot be found in time by the existing environment-friendly monitoring means.
The applicant has therefore sought to solve the above problems, through the useful search and research, against which the technical solutions that will be described below have been derived.
Disclosure of Invention
One of the technical problems to be solved by the present invention is: the field device leakage monitoring system based on multiple dimensions is provided aiming at the defects of the existing manual inspection mode.
The second technical problem to be solved by the present invention is: the monitoring method of the field device leakage monitoring system based on the multiple dimensions is provided.
A multi-dimensional based field device leak monitoring system as a first aspect of the present invention includes:
the medium leakage monitoring module is arranged in a field area needing to be inspected and is used for acquiring field medium leakage related information;
the leakage data edge computing device is used for receiving the field medium leakage related information acquired by the medium leakage monitoring module in real time and analyzing, calculating and processing the field medium leakage related information; and
and the leakage source determining and forecasting early warning platform is used for receiving the analysis calculation processing result generated by the leakage data calculation device in real time, carrying out early warning judgment processing on the analysis calculation processing result and pushing the early warning judgment processing result to related responsible personnel.
In a preferred embodiment of the present invention, the medium leakage monitoring module includes:
the environment multi-element monitor is used for monitoring the field wind direction, wind speed and environment temperature and humidity;
the system comprises a visible light image monitor, a data acquisition and processing unit, a data processing unit and a data processing unit, wherein the visible light image monitor is used for monitoring the readings of various instruments on site, the states of valves and image information in the inspection process;
the infrared imaging monitor is used for visually monitoring the site leakage medium;
the system comprises a fixed array monitor, a data processing unit and a data processing unit, wherein the fixed array monitor is used for monitoring concentration information of a field leakage medium;
the laser gas monitor is used for remotely monitoring the leakage state of the combustible gas; and
the ultrasonic leakage monitoring device is used for monitoring abnormal sound generated when a field medium leaks.
In a preferred embodiment of the present invention, the leakage data edge calculation device is in communication connection with the medium leakage monitoring module in a wired manner or a wireless manner.
In a preferred embodiment of the present invention, the leakage data edge calculation device is in communication connection with the leakage source-determining, predicting and warning platform in a wired or wireless manner.
In a preferred embodiment of the present invention, the leakage data edge calculation device further comprises an audible and visual alarm which gives an alarm according to the analysis calculation processing result generated by the leakage data edge calculation device.
The monitoring method of the multi-dimensional field device leakage monitoring system as the second aspect of the invention comprises the following steps:
collecting relevant information of field medium leakage;
analyzing, calculating and processing the collected field medium leakage related information to generate an analyzing, calculating and processing result; and
and carrying out early warning judgment processing on the analysis calculation processing result to generate an early warning judgment processing result, and pushing the early warning judgment processing result to related responsible personnel.
In a preferred embodiment of the present invention, the information related to the leakage of the medium in the field includes a wind direction in the field, a wind speed in the field, a temperature and a humidity in the environment in the field, readings of various meters and valves in the field, image information in an inspection process, an infrared imaging diagram of the medium leaked in the field, concentration information of the medium leaked in the field, a leakage state of the combustible gas, and an abnormal sound condition generated when the medium leaks in the field.
In a preferred embodiment of the present invention, the analyzing, calculating and processing the collected information related to the leakage of the field medium includes the following steps:
constructing a gas diffusion model according to the relevant information of the field medium leakage;
carrying out prediction processing on the gas diffusion model and generating a prediction result;
integrating the prediction result with the maximum concentration value in the current monitoring data to obtain an ideal measurement value;
and comparing the ideal measured value with the actually received measured value, judging whether the difference value between the ideal measured value and the actually received measured value is lower than a convergence threshold, if so, terminating iteration, and otherwise, performing prediction processing on the gas diffusion model again.
In a preferred embodiment of the present invention, the early warning judgment processing result includes a type of a leaking medium, a medium leaking direction, a medium leaking risk level, and a medium leakage monitoring information table.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: according to the invention, the medium leakage condition is monitored in multiple dimensions, the relevant information of the field medium leakage is analyzed and calculated in real time through the leakage data edge calculation device, and the relevant early warning judgment processing result is pushed to relevant responsible personnel through the leakage source determination and prediction early warning platform, so that the problems of short detection distance, single mode, low detection precision and the like in the traditional method are greatly solved, the characteristics of high detection precision, strong timeliness, no influence of field environment and the like are provided, meanwhile, the working intensity of the inspection personnel is reduced, and the personal safety of the inspection personnel is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a multi-dimensional field device leakage monitoring system according to the present invention.
FIG. 2 is a flow diagram of a monitoring method of the multi-dimensional field device based leak monitoring system of the present invention.
Fig. 3 is a flow chart illustrating the process of analyzing and calculating the information related to the leakage of the field medium according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, a field device leakage monitoring system based on multiple dimensions is shown, which includes a medium leakage monitoring module 100, a leakage data edge calculation device 200, and a leakage source-determining, tracing, predicting and early-warning platform 300.
The medium leakage monitoring module 100 is arranged at a field area needing to be inspected and is used for collecting field medium leakage related information. Specifically, the medium leakage monitoring module 100 includes an environmental multi-element monitor 110, a visible light image monitor 120, an infrared imaging monitor 130, a fixed array monitor 140, a laser gas monitor 150, and an ultrasonic leakage monitor 160. The environmental multi-factor monitor 110 is used for monitoring the wind direction, the wind speed, and the environmental temperature and humidity on site. The visible light image monitor 120 is used for monitoring the reading of various instruments on site, the state of a valve and image information in the inspection process. The infrared imaging monitor 130 is used for visually monitoring the site leakage medium. The fixed array monitor 140 is used to monitor the concentration information of the leaked media in the field. The laser gas monitor 150 is used for remotely monitoring the leakage state of the combustible gas. The ultrasonic leakage monitor 160 is used for monitoring abnormal sound generated when a field medium leaks. According to the invention, the medium leakage condition is monitored in multiple dimensions through the medium leakage monitoring module 100, so that the detection precision is effectively improved.
The leakage data edge calculation device 200 is in communication connection with the medium leakage monitoring module 100 in a wired manner or a wireless manner. The system is used for receiving the field medium leakage related information collected by the medium leakage monitoring module 100 in real time and analyzing, calculating and processing the field medium leakage related information. The leakage data edge calculation device 200 meets the severe field use environment, is suitable for different people to use, and gives consideration to the safety of data network transmission.
The leakage source-determining and forecasting and early-warning platform 300 is in communication connection with the leakage data edge computing device 200 in a wired or wireless mode, and is used for receiving an analysis and calculation processing result generated by the leakage data computing device in real time, performing early-warning judgment processing on the analysis and calculation processing result, and pushing the early-warning judgment processing result to related responsible persons, so that the related responsible persons can perform predictive maintenance on equipment conveniently, closed-loop operation from monitoring and routing inspection to data following is automatically formed, the safety risk level is improved, and the loss of personnel and property is reduced.
The multidimensional field equipment leakage monitoring system also comprises an audible and visual alarm 400, wherein the audible and visual alarm 400 is connected with the leakage data edge calculation device 200 in a wired mode or a wireless mode, and alarms according to an analysis calculation processing result generated by the leakage data edge calculation device 200 so as to remind field inspection personnel to arrange maintenance in time.
Referring to fig. 2, a method for monitoring a multi-dimensional field device based leak monitoring system is shown, comprising the steps of:
and step S10, collecting relevant information of the field medium leakage. The information related to the leakage of the medium on site comprises site wind direction, site wind speed, site environment temperature and humidity, readings of various instruments on site, valve states, image information in the inspection process, an infrared imaging graph of the medium leaked on site, concentration information of the medium leaked on site, the leakage state of combustible gas and abnormal sound generated when the medium leaked on site.
And step S20, analyzing and calculating the collected field medium leakage related information to generate an analyzing and calculating processing result.
And step S30, performing early warning judgment processing on the analysis and calculation processing result to generate an early warning judgment processing result, and pushing the early warning judgment processing result to the related responsible person, so that the related responsible person can perform predictive maintenance on the equipment conveniently, closed-loop operation from monitoring and routing inspection to documented operation is automatically formed, the safety risk level is improved, and the loss of personnel and property is reduced. The early warning judgment processing result comprises a leakage medium type, a medium leakage direction, a medium leakage danger level and a medium leakage monitoring information table.
In step S20, the analyzing, calculating and processing of the collected information related to the field medium leakage includes the following steps:
and step S21, constructing a gas diffusion model according to the relevant information of the on-site medium leakage. Specifically, assuming that the initial point of gas leakage is the highest concentration, which is considered as a source of strong and diffuse around in an open environment with a certain diffusion coefficient, the wind gas diffusion model has the following formula:
wherein the parameter C (x, y, z; t) represents the gas concentration at the point (x, y, z) at t, Q is the gas source intensity, k is the gas diffusion coefficient,
At the time of actual detection, it is considered that the diffusion of gas reaches a steady state, t → + ∞, and the expression is rewritten as:
the distance versus concentration relationship translates into:
n monitors need to be deployed in the monitoring environment, and the random position is ri＝(xi,yi). In actual monitoring, each monitoring node has a threshold value TthAnd monitoring by a monitor only when the current concentration value exceeds a threshold value. Monitors in the region are in an activated state, the measured values of all the monitors are collected, information preprocessing is carried out by utilizing a gas source weighted centroid algorithm, and the task management monitors are positioned in an iterative cycle mode.
In step S22, a prediction process is performed on the gas diffusion model, and a prediction result is generated. In particular, the amount of the solvent to be used,
(a) initialization: t is 0, m particles are extracted from the initial parameter, their initial weight w0 j1/m, a priori probability p (x)0)；
(b) And in the updating process, at the moment t, constructing a likelihood function, and updating the weight value of the particle:
wt j＝wt-1 jp(Zt|Xt j),j＝1,2,...,m
normalizing the weight to obtain:
then the minimum mean square estimation value of the unknown parameter X at time t can be obtained as follows:
(c) resampling: calculating the effective particle number:
if M iseff＜MT,MTFor the threshold, generally take 0.5: obtaining M random sample X by residual resamplingj 0:TAt the same time make
(d) And (3) prediction: predicting unknown parameter X using equation of state fj t+1；
(e) And (c) turning to the step (b) when the time t is t + 1.
Step S23, the predicted result is integrated with the maximum concentration value in the current monitoring data to obtain an ideal measured value.
Step S24, comparing the ideal measured value with the actually received measured value, and judging the difference ξ ═ Z between the twomax/ZtAnd if the sum of 1+ epsilon is lower than the convergence threshold, terminating the iteration if epsilon is lower than the convergence threshold, and otherwise, performing prediction processing on the gas diffusion model again, namely returning to the step S22.
According to the invention, the medium leakage condition is monitored in multiple dimensions, the relevant information of the field medium leakage is analyzed and calculated in real time through the leakage data edge calculation device, and the relevant early warning judgment processing result is pushed to relevant responsible personnel through the leakage source determination and prediction early warning platform, so that the problems of short detection distance, single mode, low detection precision and the like in the traditional method are greatly solved, the characteristics of high detection precision, strong timeliness, no influence of field environment and the like are provided, meanwhile, the working intensity of the inspection personnel is reduced, and the personal safety of the inspection personnel is ensured.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A multi-dimensional based field device leak monitoring system, comprising:
the medium leakage monitoring module is arranged in a field area needing to be inspected and is used for acquiring field medium leakage related information;
the leakage data edge computing device is used for receiving the field medium leakage related information acquired by the medium leakage monitoring module in real time and analyzing, calculating and processing the field medium leakage related information; and
and the leakage source determining and forecasting early warning platform is used for receiving the analysis calculation processing result generated by the leakage data calculation device in real time, carrying out early warning judgment processing on the analysis calculation processing result and pushing the early warning judgment processing result to related responsible personnel.
2. The multi-dimensional based field device leak monitoring system of claim 1, wherein the media leak monitoring module comprises:
the environment multi-element monitor is used for monitoring the field wind direction, wind speed and environment temperature and humidity;
the system comprises a visible light image monitor, a data acquisition and processing unit, a data processing unit and a data processing unit, wherein the visible light image monitor is used for monitoring the readings of various instruments on site, the states of valves and image information in the inspection process;
the infrared imaging monitor is used for visually monitoring the site leakage medium;
the system comprises a fixed array monitor, a data processing unit and a data processing unit, wherein the fixed array monitor is used for monitoring concentration information of a field leakage medium;
the laser gas monitor is used for remotely monitoring the leakage state of the combustible gas; and
the ultrasonic leakage monitoring device is used for monitoring abnormal sound generated when a field medium leaks.
3. The multi-dimensional based field device leak monitoring system of claim 1, wherein the leak data edge calculation device is communicatively coupled to the media leak monitoring module via a wired or wireless connection.
4. The multi-dimensional based field device leakage monitoring system of claim 1, wherein the leakage data edge calculation device is communicatively connected to the source-tracing prediction and early-warning platform in a wired or wireless manner.
5. The multi-dimensional based field device leak monitoring system of any of claims 1-5, further comprising an audible and visual alarm that alarms based on the analytical computational processing results generated by the leak data edge calculation means.
6. A method of monitoring a multi-dimensional based field device leak monitoring system as claimed in any one of claims 1 to 5, comprising the steps of:
collecting relevant information of field medium leakage;
analyzing, calculating and processing the collected field medium leakage related information to generate an analyzing, calculating and processing result; and
and carrying out early warning judgment processing on the analysis calculation processing result to generate an early warning judgment processing result, and pushing the early warning judgment processing result to related responsible personnel.
7. The monitoring method according to claim 6, wherein the information related to the leakage of the medium on site comprises wind direction on site, wind speed on site, temperature and humidity of environment on site, readings of various instruments and valves on site, image information in the inspection process, infrared imaging graph of the medium leaked on site, concentration information of the medium leaked on site, leakage state of combustible gas and abnormal sound generated when the medium leaks on site.
8. The monitoring method according to claim 6, wherein the analyzing, calculating and processing the collected information related to the leakage of the field medium comprises the following steps:
constructing a gas diffusion model according to the relevant information of the field medium leakage;
carrying out prediction processing on the gas diffusion model and generating a prediction result;
integrating the prediction result with the maximum concentration value in the current monitoring data to obtain an ideal measurement value;
and comparing the ideal measured value with the actually received measured value, judging whether the difference value between the ideal measured value and the actually received measured value is lower than a convergence threshold, if so, terminating iteration, and otherwise, performing prediction processing on the gas diffusion model again.
9. The monitoring method according to claim 6, wherein the early warning judgment processing result comprises a leaked medium type, a medium leakage direction, a medium leakage danger level and a medium leakage monitoring information table.
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