CN113064014A - Method, device, equipment and medium for detecting electric tracing band - Google Patents
Method, device, equipment and medium for detecting electric tracing band Download PDFInfo
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- CN113064014A CN113064014A CN202110358850.9A CN202110358850A CN113064014A CN 113064014 A CN113064014 A CN 113064014A CN 202110358850 A CN202110358850 A CN 202110358850A CN 113064014 A CN113064014 A CN 113064014A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention relates to the technical field of electric tracing bands, in particular to a detection method, a device, equipment and a medium of an electric tracing band, wherein the method comprises the following steps: acquiring operating parameters of a first electric tracing band and operating parameters of a second electric tracing band, wherein the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline; obtaining a first operation coefficient according to the operation parameters of the first electric tracing band; obtaining a second operation coefficient according to the operation parameters of the second electric tracing band; and judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient. Therefore, the damage of the electric tracing band is detected, and the technical effect of influencing a production line in the field of steel making is avoided.
Description
Technical Field
The invention relates to the technical field of electric tracing bands, in particular to a method, a device, equipment and a medium for detecting an electric tracing band.
Background
The electric tracing band is widely applied in the field of steel making and is often used as a heat insulation material of equipment to prevent water in a pipeline from being cooled and frozen. After the electric tracing band is wound on the pipeline, the electric tracing band is wrapped by using heat insulation cotton and then is protected and fixed by an iron sheet. Therefore, after the electric tracing band is put into use, the operating temperatures of all parts of the electric tracing band on the pipeline cannot be detected by directly touching or using temperature measuring equipment, and the situation that the electric tracing band is locally damaged usually occurs, so that the accuracy of judging whether the electric tracing band on the pipeline has a fault is low.
Disclosure of Invention
The embodiment of the application provides a detection method, a detection device, equipment and a detection medium for the electric tracing band, solves the technical problem that in the prior art, the accuracy for judging whether the electric tracing band on the pipeline has a fault is low, realizes the detection of the damage of the electric tracing band, and avoids the technical effect of influencing the production line in the field of steel making.
In a first aspect, an embodiment of the present invention provides a method for detecting an electric tracing band, including:
acquiring operating parameters of a first electric tracing band and operating parameters of a second electric tracing band, wherein the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline;
obtaining a first operation coefficient according to the operation parameters of the first electric tracing band;
obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient.
Preferably, the operating parameters of the first electric tracing band include: a length of the first electric trace band and a current operating current of the first electric trace band;
the operating parameters of the second electric tracing band comprise: a length of the second electric trace band and a current operating current of the second electric trace band;
the acquiring of the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band comprises:
acquiring the length of the first electric trace band arranged on the pipeline and the length of the second electric trace band arranged on the pipeline;
detecting the current running current of the first electric tracing band through a first current transformer when the first electric tracing band works, wherein the first current transformer is arranged on the first electric tracing band;
when the second electric tracing band works, detecting the current running current of the second electric tracing band through a second current transformer, wherein the second current transformer is arranged on the second electric tracing band.
Preferably, the obtaining a first operation coefficient according to the operation parameter of the first electric tracing band includes:
obtaining the first operation coefficient according to the length of the first electric tracing band and the current operation current of the first electric tracing band;
the obtaining of the second operation coefficient according to the operation parameters of the second electric tracing band comprises:
and obtaining the second operation coefficient according to the length of the second electric tracing band and the current operation current of the second electric tracing band.
Preferably, the determining whether the first electric trace band and/or the second electric trace band has a fault according to the first operation coefficient and the second operation coefficient includes:
obtaining a first ratio according to the first operation coefficient and the second operation coefficient;
judging whether the first ratio is within an operation threshold range;
if so, transmitting first result information, wherein the first result information indicates that no fault exists in the first electric tracing band and the second electric tracing band;
and if not, sending second result information, wherein the second result information indicates that the first electric tracing band and/or the second electric tracing band have faults.
Preferably, if not, after sending the second result information, the method further includes:
acquiring historical operating current of the first electric tracing band, wherein the historical operating current of the first electric tracing band is the operating current of the first electric tracing band under a historical environment temperature, and the historical environment temperature is consistent with the current environment temperature;
obtaining a third operation coefficient according to the length of the first electric tracing band and the historical operation current of the first electric tracing band;
obtaining a second ratio according to the first operation coefficient and the third operation coefficient;
judging whether the second ratio is within an operation threshold range;
if so, determining that the first electric tracing band has no fault;
if not, determining that the first electric tracing band has a fault.
Preferably, if not, after sending the second result information, the method further includes:
acquiring historical operating current of the second electric tracing band, wherein the historical operating current of the second electric tracing band is the operating current of the second electric tracing band at the historical environmental temperature;
obtaining a fourth operation coefficient according to the length of the second electric tracing band and the historical operation current of the second electric tracing band;
obtaining a third ratio according to the second operation coefficient and the fourth operation coefficient;
judging whether the third ratio is within an operation threshold range;
if so, determining that the second electric tracing band has no fault;
if not, determining that the second electric tracing band has a fault.
Preferably, before the acquiring the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band, the method further comprises:
acquiring a temperature ratio of a first environment temperature of the first electric tracing band and a second environment temperature of the second electric tracing band, wherein the first environment temperature is obtained by detecting the first electric tracing band through a first temperature remote transmission meter, and the second environment temperature is obtained by detecting the second electric tracing band through a second temperature remote transmission meter;
if the temperature ratio is within a set temperature threshold range, determining that the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and starting to execute the step of acquiring the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band;
and if the temperature ratio is not in the range of the set temperature threshold value, determining that the first electric tracing band and the second electric tracing band are not in the same current environmental temperature, and sending prompt information.
Based on the same inventive concept, in a second aspect, the present invention further provides a device for detecting an electric tracing band, including:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operating parameters of a first electric tracing band and a second electric tracing band, the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline;
the calculation module is used for obtaining a first operation coefficient according to the operation parameters of the first electric tracing band; obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and the judging module is used for judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient.
Based on the same inventive concept, in a third aspect, the present invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for detecting an electric trace band when executing the program.
Based on the same inventive concept, in a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for detecting an electric tracing band.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
in the embodiment of the application, the operation coefficient of the first electric tracing band and the operation coefficient of the second electric tracing band are respectively obtained through the operation parameters of the first electric tracing band and the operation parameters of the second electric tracing band, and the two operation coefficients are used for judging whether the first electric tracing band and/or the second electric tracing band has faults or not. Therefore, whether the electric tracing band on the pipeline has faults or not is detected, and the damaged electric tracing band can be found and replaced in time, so that the pipeline is prevented from being frozen, the process flow is prevented from being influenced, and the economic loss is reduced. Therefore, the technical problem of how to detect the faults of the electric tracing band is solved.
2, in the embodiment of the present application, in order to ensure that the two detected electric tracing bands are at the same environmental temperature, the environmental temperature of the two electric tracing bands is determined through the temperature remote table. The temperature remote meter is usually arranged at the head end or the tail end of the detected electric tracing band or in heat insulation cotton wound on the electric tracing band, so that the environmental temperature of each section of the electric tracing band can be conveniently measured, and the problem of measuring the environmental temperature by damaging a pipeline or damaging the completely installed electric tracing band is solved
In the embodiment of the application, the operation coefficient is obtained by dividing the length of the electric tracing band by the operation current of the electric tracing band, so that the real working condition of the electric tracing band is represented by the operation coefficient, and the basis for accurately and reliably judging whether the electric tracing band has faults is provided.
4, in the embodiment of the application, in order to further detect which electric tracing band of the two sections of electric tracing bands has a fault, the fault detection of the same electric tracing band under the historical environmental temperature is carried out, and objective and reliable result data are obtained.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart showing steps of a method for detecting an electric tracing band in an embodiment of the present invention;
FIG. 2 is a block diagram showing a detection apparatus of an electric tracing band in the embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a computer device in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
A first embodiment of the present invention provides a method for detecting an electric tracing band, as shown in fig. 1, including:
s101, obtaining operation parameters of a first electric tracing band and operation parameters of a second electric tracing band, wherein the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline;
s102, obtaining a first operation coefficient according to the operation parameters of the first electric tracing band;
s103, obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and S104, judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient.
According to the method, the operation coefficient of the first electric tracing band and the operation coefficient of the second electric tracing band are respectively obtained through the operation parameters of the first electric tracing band and the operation parameters of the second electric tracing band, and then whether the first electric tracing band and/or the second electric tracing band have faults or not is judged according to the two operation coefficients. Therefore, whether the electric tracing band on the pipeline has a fault or not is detected, and when the fault of any electric tracing band is detected, the damaged electric tracing band can be replaced in time, so that the pipeline is prevented from being frozen, the process flow is prevented from being influenced, and the economic loss is reduced.
It should be noted that, the method of this embodiment is a detection method performed for any two sections of electric tracing bands with the same material type under the same current environmental temperature, where the any two sections of electric tracing bands with the same material type under the same current environmental temperature refer to any two sections of electric tracing bands with the same material type in the same pipeline or any two sections of electric tracing bands with the same material type in different pipelines under the same current environmental temperature. It is also emphasized that any two sections of electric tracing bands with the same material type are two parts of the same electric tracing band or different parts of different electric tracing bands.
In order to ensure that any two detected electric tracing bands are at the same current environmental temperature, the environmental temperatures of the two detected electric tracing bands need to be judged, and the method specifically includes:
acquiring a temperature ratio of a first environment temperature of the first electric tracing band and a second environment temperature of the second electric tracing band, wherein the first environment temperature is obtained by detecting the first electric tracing band through a first temperature remote transmission table, and the second environment temperature is obtained by detecting the second electric tracing band through a second temperature remote transmission table;
if the temperature ratio is within the set temperature threshold range, determining that the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and starting to acquire the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band;
and if the temperature ratio is not within the set temperature threshold range, determining that the first electric tracing band and the second electric tracing band are not at the same current environmental temperature, and sending prompt information, wherein the prompt information is used for prompting an operator.
Specifically, a first environment temperature of the first electric tracing band is detected through a first temperature remote transmission meter, wherein the first temperature remote transmission meter is arranged at the head end and/or the tail end of the first electric tracing band; and detecting the ambient temperature of the second electric tracing band through a second temperature remote transmitting meter, wherein the second temperature remote transmitting meter is arranged at the head end and/or the tail end of the second electric tracing band.
It should be noted that the temperature remote-transmitting meter is used for detecting the ambient temperature of each section of electric tracing band, and is usually disposed at the head end or the tail end of the detected electric tracing band or in the heat insulation cotton wound around the electric tracing band, so as to facilitate the measurement of the ambient temperature of each section of electric tracing band, and avoid the problem of measuring the ambient temperature by damaging the pipeline or the completely installed electric tracing band. The first temperature remote transmission meter and the second temperature remote transmission meter can be used for measuring the temperature by using the same temperature remote transmission meter, and also can be used for simultaneously measuring the temperature by using the two temperature remote transmission meters.
The temperature ratio is obtained by dividing a first ambient temperature of the first electric tracing band and a second ambient temperature of the second electric tracing band; or obtained by dividing the first ambient temperature and the second ambient temperature and multiplying the divided values by corresponding coefficients, which is not particularly limited herein.
In practice, the temperature threshold range is obtained by a plurality of experimental data, and is usually 0.75 to 1.35. Of course, the temperature threshold range can also be set according to actual requirements. When the first temperature remote meter detects the ambient temperature of the first electric tracing band, the ambient temperature is recorded as T1; when the second temperature remote meter detects the ambient temperature of the second electric tracing band, the ambient temperature is marked as T2; then, T1 and T2 were divided to obtain the temperature ratio. Or dividing T1 and T2, and multiplying by corresponding coefficients to obtain a temperature ratio, wherein if the temperature ratio is represented by W and the coefficient is represented by a, W is determined to be (T1/T2). times.a, and the value of a is usually between 0 and 1. And if the temperature ratio is in the set temperature threshold range, indicating that the two detected electric tracing bands are in the same current environmental temperature, starting to perform fault detection on the two electric tracing bands. If the temperature ratio is not in the range of the set temperature threshold, the two detected electric tracing bands are not in the same current environmental temperature, prompt information needs to be sent to remind an operator that the two detected electric tracing bands are not in the same current environmental temperature.
And after confirming that the two detected electric tracing bands are at the same current environmental temperature, executing the step S101 to obtain the operation parameters of the first electric tracing band and the second electric tracing band.
Wherein, the operating parameters of the first electric tracing band comprise: a length of the first electric trace band and a current operating current of the first electric trace band. Operating parameters of the second electric tracing band include: a length of the second electric tracing band and a current operation current of the second electric tracing band;
the specific steps of obtaining the length of the first electric tracing band and the length of the second electric tracing band are as follows: when the pipeline is laid, namely, the plurality of sections of electric tracing bands are laid on the pipeline, the length of each section of electric tracing band is recorded and stored. Therefore, the length of the first electric trace band disposed on the pipe and the length of the second electric trace band disposed on the pipe are obtained, that is, the length of the first electric trace band and the length of the second electric trace band are obtained.
The specific steps of obtaining the current operation current of the first electric tracing band and the current operation current of the second electric tracing band are as follows:
when the first electric tracing band works, detecting the current running current of the first electric tracing band through a first current transformer, wherein the first current transformer is arranged on the first electric tracing band; when the second electric tracing band works, the current running current of the second electric tracing band is detected through a second current transformer, wherein the second current transformer is arranged on the second electric tracing band.
It should be noted that the first current transformer and the second current transformer may be the same current transformer for measuring the detected current of the two electric tracing bands in operation, or may be two current transformers for respectively and simultaneously measuring, that is, one current transformer measures the current of one electric tracing band in operation, and the other current transformer measures the current of the other electric tracing band in operation.
In step S101, when the electric tracing band is laid on the pipeline, the length of the electric tracing band is obtained in advance, and the material model of the electric tracing band is also obtained to ensure that the electric tracing band on the pipeline is the same material model, so as to prepare basic conditions for a subsequent detection method of the electric tracing band.
Next, step S102 and step S103 are executed, it should be noted that the execution order of step S102 and step S103 in this embodiment may be changed, or may be executed simultaneously, and the present invention is not limited herein.
Step S102, obtaining a first operation coefficient according to the operation parameters of the first electric tracing band, and specifically comprising the following steps:
a first operation coefficient is obtained according to the length of the first electric trace band and the current operation current of the first electric trace band.
Step S103, obtaining a second operation coefficient according to the operation parameters of the second electric tracing band, which specifically comprises the following steps:
and obtaining a second operation coefficient according to the length of the second electric tracing band and the current operation current of the second electric tracing band.
In a specific implementation, the operation coefficient of the electric tracing band is obtained by dividing the length of the electric tracing band and the operation current of the electric tracing band, i.e., based on the equation λ ═ L/I, where λ is the operation coefficient of the electric tracing band, L is the length of the electric tracing band, and I is the operation current of the electric tracing band. Therefore, the first operating coefficient is represented by λ 1, the length of the first electric trace is represented by L1, the current operating current of the first electric trace is represented by I1, and the first operating coefficient is determined based on the equation λ 1 — L1/I1. Similarly, the second operating coefficient is represented by λ 2, the length of the second electric trace is represented by L2, the current operating current of the second electric trace is represented by I2, and the second operating coefficient is obtained based on the equation λ 2 — L2/I2.
Or the operation coefficient of the electric tracing band is obtained by dividing the length of the electric tracing band by the operation current of the electric tracing band and then multiplying the division by the corresponding coefficient, namely based on the equation lambda ═ (L/I). times.b, wherein b is a coefficient, and the value of b is usually between 0 and 1.
In step S102 and step S103, the operation coefficient of the electric tracing band is used to represent the working condition of the electric tracing band, and data with high reliability and high accuracy is obtained to reflect the real working condition of the electric tracing band, so as to provide a reliable and accurate basis for judging whether the electric tracing band has a fault.
After the first operation coefficient and the second operation coefficient are obtained, step S104 is executed to determine whether the first electric trace band and/or the second electric trace band has a fault according to the first operation coefficient and the second operation coefficient, which specifically includes:
obtaining a first ratio according to the first operation coefficient and the second operation coefficient;
judging whether the first ratio is within the operation threshold range;
if so, transmitting first result information, wherein the first result information indicates that the first electric tracing band and the second electric tracing band have no fault;
and if not, sending second result information, wherein the second result information indicates that the first electric tracing band and/or the second electric tracing band have faults.
It should be noted that the operation threshold range is obtained according to a great amount of experimental experience, and the operation threshold range is usually set to 0.85 to 1.15, and may also be set according to actual requirements.
Specifically, the first ratio B1 is obtained by dividing the first operation coefficient λ 1 by the second operation coefficient λ 2, and is represented as B1 ═ λ 1: and 2. lambda.2. Or the first ratio B1 is obtained by dividing the first operation coefficient λ 1 by the second operation coefficient λ 2 and then multiplying by the corresponding coefficient c, and is denoted as B1 ═ λ 1/λ 2) × c, where c is usually between 0 and 1. And when the B1 is more than or equal to 0.85 and less than or equal to 1.15, the first electric tracing band and the second electric tracing band have no fault, and first result information is sent to remind an operator that the first electric tracing band and the second electric tracing band are normal. And when the B1 is less than or equal to 0.85 or the B1 is more than or equal to 1.15, the first electric tracing band and/or the second electric tracing band have faults, and second result information is sent to remind an operator that the first electric tracing band has the faults or the second electric tracing band has the faults or both the first electric tracing band and the second electric tracing band have the faults.
In step S104, whether the electric tracing band has a fault is determined based on the accurate working condition of the electric tracing band, and the obtained result data is also reliable and accurate.
After the second result information is transmitted, in order to further detect whether the first electric trace band has a fault, the following steps are performed:
acquiring historical operating current of the first electric tracing band, wherein the historical operating current of the first electric tracing band is the operating current of the first electric tracing band at a historical environment temperature, and the historical environment temperature is consistent with the current environment temperature;
obtaining a third operation coefficient according to the length of the first electric tracing band and the historical operation current of the first electric tracing band;
obtaining a second ratio according to the first operation coefficient and the third operation coefficient;
judging whether the second ratio is within the operation threshold range;
if so, determining that the first electric tracing band has no fault; if not, determining that the first electric tracing band has a fault.
It should be noted that, when the electric tracing band works, the running current of each section of electric tracing band at each time every day is automatically stored. In the specific implementation process, since the operation current of the same electric tracing band measured at the same time on two adjacent days is considered as the operation current of the same electric tracing band measured under the same condition, the historical operation current of the same electric tracing band is generally the operation current of the electric tracing band at the same time on the previous day. Of course, if the historical ambient temperature at other times on other dates is consistent with the current ambient temperature, the historical operating current of the electric tracing band may be the operating current at other times on other dates before the current operating current. In order to further ensure the reliability and accuracy of the data, the historical ambient temperature of the same electric tracing band can be compared with the current ambient temperature, and the electric tracing band is verified to be under the same condition. The verification method of the environmental temperature of the electric tracing band is a method of judging whether the two detected electric tracing bands are at the same current environmental temperature or other verification methods, and is not limited herein.
The second ratio is obtained by dividing the first operating coefficient by the third operating coefficient, or by dividing the first operating coefficient by the third operating coefficient and multiplying the divided operating coefficient by the corresponding coefficient d. Wherein d is usually between 0 and 1.
Specifically, the historical operating current of the first electric tracing band is recorded as I1 ', the third operating coefficient is recorded as λ 1', and the second ratio is recorded as B2. First, λ 1 ' is obtained based on the equation λ 1 ' ═ L1/I1 '. Based on the equation B2 ═ λ 1'/λ 1, B2 was obtained. If the B2 is in the operation threshold range, the first electric tracing band has no fault; otherwise, determining that the first electric tracing band has a fault. When the first electric tracing band is determined to have a fault, alarm information can be sent out to prompt an operator that the first electric tracing band has the fault.
Similarly, it can be seen that the following steps need to be performed to detect whether the second electric tracing band has a fault:
and acquiring the historical operating current of the second electric tracing band, wherein the historical operating current of the second electric tracing band is the operating current of the second electric tracing band under the historical environmental temperature.
Obtaining a fourth operation coefficient according to the length of the second electric tracing band and the historical operation current of the second electric tracing band;
obtaining a third ratio according to the second operation coefficient and the fourth operation coefficient;
judging whether the third ratio is within the operation threshold range;
if so, determining that the second electric tracing band has no fault; if not, determining that the second electric tracing band has a fault.
The third ratio is obtained by dividing the second operation coefficient by the fourth operation coefficient, or by dividing the second operation coefficient by the fourth operation coefficient and then multiplying the result by the corresponding coefficient d. Wherein d is usually between 0 and 1.
Specifically, the historical operating current of the second electric tracing band is recorded as I2 ', the fourth operating coefficient is recorded as λ 2', and the third ratio is recorded as B3. First, λ 2 ' is obtained based on the equation λ 2 ' ═ L2/I2 '. Based on the equation B3 ═ λ 2'/λ 2, B3 was obtained. If the B3 is in the operation threshold range, the second electric tracing band has no fault; otherwise, determining that the second electric tracing band has a fault. When the second electric tracing band is determined to have a fault, alarm information can be sent out to prompt an operator that the second electric tracing band has the fault.
When the first electric tracing band and/or the second electric tracing band are/is judged to have faults, fault detection of the same electric tracing band at the same time on two adjacent days is adopted, and objective and reliable result data are obtained.
The method of the embodiment is to detect the fault of any two sections of electric tracing bands under the same condition, wherein the same condition refers to that: the two sections of electric tracing bands are in the same environmental temperature or in the same pipeline, the material models of the two sections of electric tracing bands are the same, and the power supply voltages of the two sections of electric tracing bands are the same. The power supply voltages of the electric tracing bands are all 220V, so that the power supply voltages are all the same, and the power supply voltage of each section of electric tracing band does not need to be detected separately.
The method of the embodiment involves the following principles:
the operation coefficient lambda is determined by the power supply voltage of the electric tracing band, the material model of the electric tracing band and the ambient temperature. In the method of the present embodiment, the supply voltage of 220V is fixed; the material type of the electric tracing heat is the same, and the material type is the same; the environmental temperature is the same pipeline or different pipelines of the same environment, so the environmental temperature is the same; then λ is fixed.
According to the common knowledge, the voltage U ═ current I ═ resistance R is denoted as U ═ I ×, where the resistance R is a resistance of any length of the electric trace band, and R ═ U/I is obtained.
The resistance R is the resistance R of the electric tracing band of one meter/the length L of the electric tracing band, which influences the factor theta
The resistance value of R is influenced by environmental factors, and the higher the temperature is, the larger the resistance is; and is also influenced by the material of the device. When the temperature is the same and the material is the same, these two influencing factors are called as θ, that is, θ is the same in the method of the present embodiment.
And U/R theta is obtained by converting the above formula.
Since the supply voltages are 220V identical, i.e., U is identical; theta are the same; the resistance values of the electric tracing band of one meter affected by other factors are the same, and r is the same. Then, U/r θ is a relatively stable value, defined as the coefficient of operation λ.
Then λ ═ I/L or λ ═ L/I.
The electric tracing band is a core band which is uniformly extruded with a layer of PTC (Positive Temperature Coefficient) material between two parallel buses to form a PTC parallel loop of the core band. The PTC layer is a resistance heating body which is continuously connected in parallel between the buses, and converts electric energy into heat energy. In normal operation, 220V voltage is applied between the two lines, the part of heat generated between the two lines is absorbed by the electric tracing band, and the conductivity of the electric tracing band changes along with the change of the ambient temperature. When the environmental temperature rises to a certain value, the current of the electric tracing band is reduced to the minimum value.
Taking the first electric trace band a1 and the second electric trace band a2 as examples, the detection method of the electric trace band of the present embodiment is specifically explained.
Firstly, judging whether A1 and A2 are at the same current ambient temperature, detecting the ambient temperature T1 of a first electric tracing band through a first temperature remote transmission table, and detecting the ambient temperature T2 of a second electric tracing band through a second temperature remote transmission table; the temperature ratio W is obtained by dividing T1 and T2 (i.e., by the equation W ═ T1/T2).
If W is within the set temperature threshold range, then A1 and A2 are at the same current ambient temperature, and step S101 is executed next. And if the W is not in the set temperature threshold range, the A1 and the A2 are not in the same current environment temperature, and prompt information is sent.
And when the A1 and the A2 are at the same current ambient temperature, acquiring the operating parameters of A1 and the operating parameters of A2. The operating parameters of a1 include: the operating parameters of the current operating current I1, a2 of the length L1 and a1 of a1 include: length L2 of a2 and current operating current I2 of a 2.
The first operating factor λ 1 is determined from the operating parameters of a1 and on the basis of the equation λ 1 — L1/I1. The second operating factor λ 2 is determined from the operating parameters of a2 and on the basis of the equation λ 2 — L2/I2.
Then, based on the first operating coefficient λ 1 and the second operating coefficient λ 2, and based on equation B1 ═ λ 1: λ 2, obtaining a first ratio B1. If the B1 is within the operation threshold range, the first electric trace band a1 and the second electric trace band a2 do not have a fault, and first result information is transmitted. If B1 is not within the operational threshold range, then there is a fault with A1 and/or A2.
To further detect whether a1 has a fault, the following steps are performed:
acquiring historical operating current I1' of A1; the third operating coefficient λ 1 'is obtained from L1 and I1' and based on the equation λ 1 '═ L1/I1'. Based on the equation B2 ═ λ 1'/λ 1, a second ratio B2 is obtained. If B2 is within the operating threshold range, then there is no fault with A1; otherwise, it is determined that a1 has a fault.
To further detect whether a2 has a fault, the following steps are performed:
acquiring historical operating current I2' of A2; the fourth operating coefficient λ 2 'is obtained from L2 and I2' and based on the equation λ 2 '═ L2/I2'. Based on the equation B3 ═ λ 2'/λ 2, a third ratio B3 is obtained. If B3 is within the operating threshold range, then there is no fault with A2; otherwise, it is determined that a2 has a fault.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
in this embodiment, an operation coefficient of the first electric tracing band and an operation coefficient of the second electric tracing band are obtained by an operation parameter of the first electric tracing band and an operation parameter of the second electric tracing band, and whether the first electric tracing band and/or the second electric tracing band has a fault is determined by the two operation coefficients. Therefore, whether the electric tracing band on the pipeline has faults or not is detected, and the damaged electric tracing band can be found and replaced in time, so that the pipeline is prevented from being frozen, the process flow is prevented from being influenced, and the economic loss is reduced. Therefore, the technical problem of how to detect the faults of the electric tracing band is solved.
In this embodiment, in order to ensure that the two detected electric tracing bands are at the same environmental temperature, the environmental temperature of the two electric tracing bands is determined through the temperature remote table. The temperature remote meter is usually arranged at the head end or the tail end of the detected electric tracing band or in heat insulation cotton wound on the electric tracing band, so that the environmental temperature of each section of the electric tracing band can be conveniently measured, and the problem of measuring the environmental temperature by damaging a pipeline or damaging the completely installed electric tracing band is solved
In the embodiment, the operation coefficient is obtained by dividing the length of the electric tracing band by the operation current of the electric tracing band, so that the real working condition of the electric tracing band is represented by the operation coefficient, and the basis for accurately and reliably judging whether the electric tracing band has faults is provided.
In the embodiment, in order to further detect which electric tracing band of the two electric tracing bands has a fault, fault detection of the same electric tracing band under the historical environmental temperature is carried out, and objective and reliable result data are obtained.
Example two
Based on the same inventive concept, a second embodiment of the present invention further provides a detection apparatus for an electric tracing band, as shown in fig. 2, including:
an obtaining module 201, configured to obtain an operating parameter of a first electric trace band and an operating parameter of a second electric trace band, where the first electric trace band and the second electric trace band are at a same current ambient temperature, and the first electric trace band and the second electric trace band are disposed on a pipeline;
the calculation module 202 is used for obtaining a first operation coefficient according to the operation parameters of the first electric tracing band; obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and the judging module 203 is configured to judge whether the first electric trace band and/or the second electric trace band has a fault according to the first operation coefficient and the second operation coefficient.
As an alternative embodiment, the operation parameters of the first electric tracing band include: a length of the first electric trace band and a current operating current of the first electric trace band;
the operating parameters of the second electric tracing band comprise: a length of the second electric trace band and a current operating current of the second electric trace band;
an acquisition module 201, comprising:
acquiring the length of the first electric trace band arranged on the pipeline and the length of the second electric trace band arranged on the pipeline;
detecting the current running current of the first electric tracing band through a first current transformer when the first electric tracing band works, wherein the first current transformer is arranged on the first electric tracing band;
when the second electric tracing band works, detecting the current running current of the second electric tracing band through a second current transformer, wherein the second current transformer is arranged on the second electric tracing band.
As an alternative embodiment, the calculation module 202 is further configured to:
obtaining the first operation coefficient according to the length of the first electric tracing band and the current operation current of the first electric tracing band; and obtaining the second operation coefficient according to the length of the second electric tracing band and the current operation current of the second electric tracing band.
As an alternative embodiment, the determining module 203 is further configured to:
obtaining a first ratio according to the first operation coefficient and the second operation coefficient;
judging whether the first ratio is within an operation threshold range;
if so, transmitting first result information, wherein the first result information indicates that no fault exists in the first electric tracing band and the second electric tracing band;
and if not, sending second result information, wherein the second result information indicates that the first electric tracing band and/or the second electric tracing band have faults.
As an optional embodiment, if not, after sending the second result information, the method further includes:
the obtaining module 201 is further configured to obtain a historical operating current of the first electric tracing band, where the historical operating current of the first electric tracing band is an operating current of the first electric tracing band at a historical ambient temperature, and the historical ambient temperature is consistent with the current ambient temperature;
the calculation module 202 is further configured to obtain a third operation coefficient according to the length of the first electric trace band and a historical operation current of the first electric trace band;
the judging module 203 is further configured to obtain a second ratio according to the first operation coefficient and the third operation coefficient; judging whether the second ratio is within an operation threshold range; if so, determining that the first electric tracing band has no fault; if not, determining that the first electric tracing band has a fault.
As an optional embodiment, if not, after sending the second result information, the method further includes:
the obtaining module 201 is further configured to obtain a historical operating current of the second electric tracing band, where the historical operating current of the second electric tracing band is an operating current of the second electric tracing band at the historical ambient temperature;
the calculation module 202 is further configured to obtain a fourth operation coefficient according to the length of the second electric trace band and the historical operation current of the second electric trace band;
the judging module 203 is further configured to obtain a third ratio according to the second operation coefficient and the fourth operation coefficient; judging whether the third ratio is within an operation threshold range; if so, determining that the second electric tracing band has no fault; if not, determining that the second electric tracing band has a fault.
As an alternative embodiment, before the obtaining of the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band, the apparatus further comprises: the temperature determination module 204 determines whether the temperature of the object is within a predetermined range,
the temperature judging module 204 is configured to obtain a temperature ratio of a first ambient temperature of the first electric trace band to a second ambient temperature of the second electric trace band, where the first ambient temperature is obtained by detecting the first electric trace band through a first temperature remote table, and the second ambient temperature is obtained by detecting the second electric trace band through a second temperature remote table;
if the temperature ratio is within a set temperature threshold range, determining that the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and starting to execute the step of acquiring the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band;
and if the temperature ratio is not in the range of the set temperature threshold value, determining that the first electric tracing band and the second electric tracing band are not in the same current environmental temperature, and sending prompt information.
Since the detection device of the electric trace band described in this embodiment is a device used for implementing the detection method of the electric trace band in the first embodiment of this application, based on the detection method of the electric trace band described in the first embodiment of this application, a person skilled in the art can understand the specific implementation of the detection device of the electric trace band in this embodiment and various modifications thereof, and therefore, how to implement the method in the first embodiment of this application for the detection device of the electric trace band is not described in detail herein. The device used by those skilled in the art to implement the method for detecting an electric tracing band in the first embodiment of the present application is within the protection scope of the present application.
EXAMPLE III
Based on the same inventive concept, the third embodiment of the present invention further provides a computer apparatus, as shown in fig. 3, including a memory 304, a processor 302, and a computer program stored on the memory 304 and executable on the processor 302, wherein the processor 302 implements the steps of any one of the above-mentioned electric tracing band detection methods when executing the program.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example four
Based on the same inventive concept, a fourth embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of any one of the methods of detecting an electric tracing band described in the previous embodiment.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for detecting an electric tracing band, comprising:
acquiring operating parameters of a first electric tracing band and operating parameters of a second electric tracing band, wherein the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline;
obtaining a first operation coefficient according to the operation parameters of the first electric tracing band;
obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient.
2. The method of claim 1, wherein the operating parameters of the first electric tracing band include: a length of the first electric trace band and a current operating current of the first electric trace band;
the operating parameters of the second electric tracing band comprise: a length of the second electric trace band and a current operating current of the second electric trace band;
the acquiring of the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band comprises:
acquiring the length of the first electric trace band arranged on the pipeline and the length of the second electric trace band arranged on the pipeline;
detecting the current running current of the first electric tracing band through a first current transformer when the first electric tracing band works, wherein the first current transformer is arranged on the first electric tracing band;
when the second electric tracing band works, detecting the current running current of the second electric tracing band through a second current transformer, wherein the second current transformer is arranged on the second electric tracing band.
3. The method of claim 2, wherein the obtaining a first operation coefficient according to the operation parameter of the first electric tracing band comprises:
obtaining the first operation coefficient according to the length of the first electric tracing band and the current operation current of the first electric tracing band;
the obtaining of the second operation coefficient according to the operation parameters of the second electric tracing band comprises:
and obtaining the second operation coefficient according to the length of the second electric tracing band and the current operation current of the second electric tracing band.
4. The method according to claim 2, wherein the judging whether the first electric trace band and/or the second electric trace band have/has a fault according to the first operation coefficient and the second operation coefficient includes:
obtaining a first ratio according to the first operation coefficient and the second operation coefficient;
judging whether the first ratio is within an operation threshold range;
if so, transmitting first result information, wherein the first result information indicates that no fault exists in the first electric tracing band and the second electric tracing band;
and if not, sending second result information, wherein the second result information indicates that the first electric tracing band and/or the second electric tracing band have faults.
5. The method of claim 4, wherein if not, after sending the second result information, further comprising:
acquiring historical operating current of the first electric tracing band, wherein the historical operating current of the first electric tracing band is the operating current of the first electric tracing band under a historical environment temperature, and the historical environment temperature is consistent with the current environment temperature;
obtaining a third operation coefficient according to the length of the first electric tracing band and the historical operation current of the first electric tracing band;
obtaining a second ratio according to the first operation coefficient and the third operation coefficient;
judging whether the second ratio is within an operation threshold range;
if so, determining that the first electric tracing band has no fault;
if not, determining that the first electric tracing band has a fault.
6. The method of claim 5, wherein if not, after sending the second result information, further comprising:
acquiring historical operating current of the second electric tracing band, wherein the historical operating current of the second electric tracing band is the operating current of the second electric tracing band at the historical environmental temperature;
obtaining a fourth operation coefficient according to the length of the second electric tracing band and the historical operation current of the second electric tracing band;
obtaining a third ratio according to the second operation coefficient and the fourth operation coefficient;
judging whether the third ratio is within an operation threshold range;
if so, determining that the second electric tracing band has no fault;
if not, determining that the second electric tracing band has a fault.
7. The method of claim 1, wherein the obtaining of the operating parameters of the first electric trace band and the operating parameters of the second electric trace band further comprises:
acquiring a temperature ratio of a first environment temperature of the first electric tracing band and a second environment temperature of the second electric tracing band, wherein the first environment temperature is obtained by detecting the first electric tracing band through a first temperature remote transmission meter, and the second environment temperature is obtained by detecting the second electric tracing band through a second temperature remote transmission meter;
if the temperature ratio is within a set temperature threshold range, determining that the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and starting to execute the step of acquiring the operating parameters of the first electric tracing band and the operating parameters of the second electric tracing band;
and if the temperature ratio is not in the range of the set temperature threshold value, determining that the first electric tracing band and the second electric tracing band are not in the same current environmental temperature, and sending prompt information.
8. A detection device for an electric tracing band, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operating parameters of a first electric tracing band and a second electric tracing band, the first electric tracing band and the second electric tracing band are at the same current environmental temperature, and the first electric tracing band and the second electric tracing band are arranged on a pipeline;
the calculation module is used for obtaining a first operation coefficient according to the operation parameters of the first electric tracing band; obtaining a second operation coefficient according to the operation parameters of the second electric tracing band;
and the judging module is used for judging whether the first electric tracing band and/or the second electric tracing band have faults or not according to the first operation coefficient and the second operation coefficient.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.
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