CN110595537B - Cold water circulation monitoring method applied to rail transit - Google Patents
Cold water circulation monitoring method applied to rail transit Download PDFInfo
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- CN110595537B CN110595537B CN201910840284.8A CN201910840284A CN110595537B CN 110595537 B CN110595537 B CN 110595537B CN 201910840284 A CN201910840284 A CN 201910840284A CN 110595537 B CN110595537 B CN 110595537B
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06311—Scheduling, planning or task assignment for a person or group
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- G—PHYSICS
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q10/20—Administration of product repair or maintenance
Abstract
The invention relates to a cold water circulation monitoring method applied to rail transit, which is realized based on a pre-established detection system, and realizes the detection, early warning and work order classified issuing of cold water rail transit and rail transit pipelines by an automatic means; the detection cost is reduced by determining the power, the temperature and the flow in the detection process, and the detection result is quantized, firstly through an automatic processing mode, and then a work order is generated by early warning, so that the abnormal processing efficiency is improved, the labor cost is saved, and the workers are reasonably distributed and utilized.
Description
Technical Field
The invention relates to a cold water circulation monitoring method applied to rail transit.
Background
The rail transit is an indispensable vehicle in daily life of people, the rail transit station has special internal environment, is less in contact with the outside, is not easy to ventilate and radiate, and requires to keep a dry and cool environment for a long time, so that a large-scale ventilation air-conditioning system and an air-conditioning water system are required to be introduced for mutual cooperation; the air-conditioning water system is an important component of the air-conditioning system and is also main refrigeration equipment in a station, and self stepless regulation is completed according to the change of the heat load in the station to meet the internal environment of the station, so that the temperature and the humidity in the rail transit station meet the requirements of personnel and machine room equipment. Therefore, the method has great significance for the research on the energy-saving system of the cold water circulation of the rail transit.
In the prior art, equipment in an air-conditioning water system usually has poor heat dissipation effect due to long installation position and operation time and the like, and the maintenance difficulty is increased due to inconvenient maintenance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problems of difficulty in detection, inconvenience in maintenance and the like in an energy-saving system applied to rail transit cold water circulation in the prior art are solved, and the cold water circulation monitoring method applied to rail transit is provided.
The method is implemented using a pre-established detection system comprising: a first check out test set for being directed at cooling water equipment carries out state monitoring for the second check out test set that track traffic pipeline detected, wherein, first check out test set realizes the detection to equipment parameter, and equipment parameter includes: the device power W, and a theoretical water flow L, a cooling water temperature T1, a cooling water flow L1 and an environment target temperature T which correspond to the device power W under the power; the second detection device obtains the pipeline parameters, and specifically comprises: line outside temperature T2, line flow L2; and the number of the first and second groups,
the information processing device is used for receiving the detection information sent by the first detection equipment and the second detection equipment and calculating a system state index according to the detection information; the detection information comprises equipment parameters and pipeline parameters;
the early warning device is used for determining whether an alarm needs to be generated according to the system state index and reporting the alarm to the management center;
the management center generates a maintenance work order according to the alarm; wherein the work order comprises an automatic work order and a manual work order;
the manual work order is issued to the hands of the maintenance personnel according to the current time interval, the distance between the maintenance personnel and the two stations and the pedestrian volume of the two stations, wherein the work order comprises a suggested route reaching the maintenance point.
Wherein the system state index P is:
when the value of P is larger than the corresponding threshold value, determining whether W is adjustable, if so, adjusting the value of W to one level upwards, and if the value of P is in a normal range, recording the log and continuing to detect; if the value of P is still larger than the corresponding threshold value after the W is adjusted upwards, continuing to adjust the value of the W upwards until the W is not adjustable or the value of the P is smaller than or equal to the corresponding threshold value;
if W is not adjustable, alarm information is generated and reported to a management center, the management center judges the abnormal degree of the flow according to the values of (L-L1) and (L-L2), if (L-L1) is larger than a first threshold value, the rail transit pipeline is determined to have a problem, if (L-L2) is larger than a second threshold value, the rail transit pipeline is determined to have a problem, and then a maintenance work order is determined according to the problem.
The system also comprises an automatic cleaning system, wherein after the monitoring center receives early warning, whether the absolute value of T2-T is larger than a corresponding threshold value is determined, and if yes, the current environment abnormality degree Q is calculated to determine whether the ventilation system needs to be adjusted;
wherein the content of the first and second substances,
wherein R1 and R2 are the average value of the passenger flow of the cold water equipment at two stations in a specific time period, D is the distance between the two stations, and W is the distance between the two stationsmaxAnd WWind powerRespectively the maximum value and the current value of the fan power; t3 is the average temperature of the two stations in the current time period;
when Q is larger than a specified threshold value, increasing the ventilation capacity of the ventilation system; otherwise, judge (W)max-WWind power) If the air flow rate is larger than the air flow rate threshold value, increasing the air flow capacity of the air flow system; and if not, generating a maintenance work order.
The invention has the advantages that the detection, early warning and work order classified issuing of the cold water equipment and the rail transit pipeline are realized by an automatic means; the detection process needs to follow power, temperature and flow for quantitative determination, so that detection cost is reduced, an automatic processing mode is utilized through quantification of detection results, and then a work order is generated through early warning, so that abnormal processing efficiency is improved, labor cost is saved, and workers are reasonably distributed and utilized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The technical problem to be solved by the invention is as follows: the technical problems of difficulty in detection, inconvenience in maintenance and the like in an energy-saving system applied to rail transit cold water circulation in the prior art are solved, and the cold water circulation monitoring method applied to rail transit is provided.
The method is implemented using a pre-established detection system, as shown in fig. 1, the system comprising: the system comprises a first detection device and a second detection device, wherein the first detection device is used for monitoring the state of cold water equipment, and the second detection device is used for detecting a rail transit pipeline; and the number of the first and second groups,
information processing means for receiving detection information from the first and second detection devices and calculating a system status index based on the detection information;
the early warning device is used for determining whether an alarm needs to be generated according to the system state index and reporting the alarm to the management center;
the management center generates a maintenance work order according to the alarm; wherein the work order comprises an automatic work order and a manual work order.
The automatic means of the system realizes detection, early warning and work order classification issuing of pipelines in the water cooling equipment and the rail transit tunnel, can effectively improve the automation degree, reduces the difficulty of manual detection, and saves a large amount of manpower and material resources.
Wherein, first check out test set realizes the detection to rail transit cooling water equipment parameter, and rail transit cooling water equipment parameter includes: the method comprises the following steps of (1) obtaining power W of rail transit water cooling equipment, and corresponding theoretical water flow L, cooling water temperature T1, cooling water flow L1 and environment target temperature T (the expected environment target temperature) under the power; the second detection device obtains the pipeline parameters, and specifically comprises: line outside temperature T2, line flow L2; the above parameters may be implemented by using a representation method known in the art, or may be quantized in a level manner according to an existing representation method, and then operated by using the quantized values.
The system state index P is:
when the value of P is larger than the corresponding threshold value, determining whether W is adjustable, if so, adjusting the value of W by one step upwards, and if the value of P is in a normal range, recording the log and continuing to detect; if the value of P is still larger than the corresponding threshold value, continuing to adjust the value of W upwards until the value of W is not adjustable or the value of P is smaller than or equal to the corresponding threshold value;
if W is not adjustable, alarm information is generated and reported to a management center, the management center judges the abnormal degree of the flow according to the values of (L-L1) and (L-L2), if (L-L1) is larger than a first threshold value, the rail transit pipeline is determined to have a problem, if (L-L2) is larger than a second threshold value, the rail transit pipeline is determined to have a problem, and then a maintenance work order is determined according to the problem.
In the process, the automation degree of detection is improved by detecting the cold water rail transit and the tunnel pipeline, and in the process, the system state indexes are obtained mainly aiming at the detection of temperature and flow and through the detection of a plurality of temperatures and flows so as to determine whether the automatic adjustment is needed or not and whether the alarm is needed or not; the state of the system environment can be accurately tested through the calculation of the indexes, and the detection accuracy is improved on the basis of reducing the detection cost.
The system also comprises an automatic cleaning system, wherein after the monitoring center receives early warning, whether the absolute value of T2-T is larger than a corresponding threshold value is determined, and if yes, the current environment abnormality degree Q is calculated to determine whether the ventilation system needs to be adjusted; because under normal conditions, the temperature of the station is higher than the outside temperature of the pipeline under the same ventilation condition due to equipment, people flow and the like, under the condition, the current environment abnormality degree Q is as follows:
since cold water rail traffic may sometimes be at some intermediate or terminal station, at this time,
degree of abnormality of current environment
Wherein R is the passenger flow of the station where the cold water rail transit is located in a specific time period, and T3 is the temperature of the current station; the specific time period is a time period in which maintenance is expected.
When Q is larger than a specified threshold value, increasing the ventilation capacity of the ventilation system; otherwise, judge (W)max-WWind power) If the air flow rate is larger than the air flow rate threshold value, increasing the air flow capacity of the air flow system; and if not, generating a maintenance work order.
The water cooling equipment can comprise at least one of a water chilling unit, a chilled water pump, a cooling water pump, a water dividing and collecting device, a cooling tower and an electric butterfly valve of a water channel; the maintenance work order includes maintenance solutions relating to the above-described cold water plant.
The manual work order is issued to the hands of the maintenance personnel according to the current time interval, the distance between the maintenance personnel and the two stations and the pedestrian volume of the two stations, wherein the work order comprises a suggested route reaching the maintenance point.
After acquiring the manual work order, the management center firstly acquires maintenance personnel information of accessories, then calculates a maintenance time period (which can be the current time period or a reserved time period) t, distances d1 and d2 from a station 1 and a station 2 at two ends of an abnormal position, distances d3 and d4 from positions needing to be maintained to the station 1 and the station 2, and pedestrian flow rates r1 and r2 of the station 1 and the station 2, and then calculates a traffic cost B.
When the abnormal position is located at a non-stationAt the time of the point, the point is,
when B is larger than a preset threshold value, selecting a station 2 as an approach station, when a plurality of maintainers to be selected exist, calculating working cost B' corresponding to each maintainer, wherein the working cost is determined by maintenance urgency (classified into urgency, common and the like), working time delta T of the day, for example, for a worksheet in an emergency state, selecting a maintainer with a short distance according to traffic cost B and working time, namely selecting a worksheet in a middle level according to traffic cost B and working time, namely
And (a and B are constants and are selected and set according to actual experience), the maintenance personnel with lower working cost B' are selected to receive the work order, and if the work order is a common work order, the maintenance personnel with the shortest working time length are selected.
By means of the method, maintenance personnel can be reasonably scheduled, and human resources are fully utilized under the condition that the work orders are timely processed.
The above parameters may be implemented by using a representation method known in the art, or may be quantized in a level according to an existing representation method, and then calculated by using the quantized values, so as to reduce the complexity of the calculation and improve the calculation efficiency.
The invention has the advantages that the detection, early warning and work order classified issuing of cold water rail transit and rail transit pipelines are realized by an automatic means; the detection cost is reduced by determining the power, the temperature and the flow in the detection process, and the detection result is quantized, firstly through an automatic processing mode, and then a work order is generated by early warning, so that the abnormal processing efficiency is improved, the labor cost is saved, and the workers are reasonably distributed and utilized.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. A cold water circulation monitoring method applied to rail transit, characterized in that the method is implemented by using a pre-established monitoring system, and the system comprises: a first check out test set for being directed at cooling water equipment carries out state monitoring for the second check out test set that track traffic pipeline detected, wherein, first check out test set realizes the detection to equipment parameter, and equipment parameter includes: the device power W, and a theoretical water flow L, a cooling water temperature T1, a cooling water flow L1 and an environment target temperature T which correspond to the device power W under the power; the second detection device obtains the pipeline parameters, and specifically comprises: line outside temperature T2, line flow L2; and the number of the first and second groups,
the information processing device is used for receiving the detection information sent by the first detection equipment and the second detection equipment and calculating a system state index according to the detection information; the detection information comprises equipment parameters and pipeline parameters;
the early warning device is used for determining whether an alarm needs to be generated according to the system state index and reporting the alarm to the management center;
the management center generates a maintenance work order according to the alarm; wherein the work order comprises an automatic work order and a manual work order;
the manual work order is issued to the hands of the maintenance personnel according to the current time interval, the distance between the maintenance personnel and the two stations and the pedestrian volume of the two stations, wherein the work order comprises a suggested route reaching the maintenance point;
the system state index P is:
when the value of P is larger than the corresponding threshold value, determining whether W is adjustable, if so, adjusting the value of W to one level upwards, and if the value of P is in a normal range, recording the log and continuing to detect; if the value of P is still larger than the corresponding threshold value after the W is adjusted upwards, continuing to adjust the value of the W upwards until the W is not adjustable or the value of the P is smaller than or equal to the corresponding threshold value;
if W is not adjustable, generating alarm information, reporting to a management center, judging the abnormal degree of the flow by the management center according to the values of (L-L1) and (L-L2), if (L-L1) is larger than a first threshold value, determining that a problem exists in the rail transit pipeline, if (L-L2) is larger than a second threshold value, determining that a problem exists in the rail transit pipeline, and then determining a maintenance work order according to the problem;
the system also comprises an automatic cleaning system, when the monitoring center receives the early warning, whether the absolute value of T2-T is larger than a corresponding threshold value is determined, if yes, the current environment abnormality degree Q is calculated to determine whether the ventilation system needs to be adjusted;
wherein the content of the first and second substances,
wherein R1 and R2 are the average value of the passenger flow of the cold water equipment at two stations in a specific time period, D is the distance between the two stations, and W is the distance between the two stationsmaxAnd WWind powerRespectively the maximum value and the current value of the fan power; t3 is the average temperature of the two stations in the current time period;
when Q is larger than a specified threshold value, increasing the ventilation capacity of the ventilation system; otherwise, judge (W)max-WWind power) If the air flow rate is larger than the air flow rate threshold value, increasing the air flow capacity of the air flow system; and if not, generating a maintenance work order.
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