CN108693398A - Apparatus for diagnosing deterioration and method - Google Patents
Apparatus for diagnosing deterioration and method Download PDFInfo
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- CN108693398A CN108693398A CN201810270708.7A CN201810270708A CN108693398A CN 108693398 A CN108693398 A CN 108693398A CN 201810270708 A CN201810270708 A CN 201810270708A CN 108693398 A CN108693398 A CN 108693398A
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- value
- heater
- controlling value
- state
- deterioration
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16585—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 for individual pulses, ripple or noise and other applications where timing or duration is of importance
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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
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
Abstract
The present invention relates to apparatus for diagnosing deterioration and methods.It being capable of exception that is easier and more quickly judging heater.Controlling value determination unit (103) judges which side that heater (111) is set as the disconnection controlling value of off-state or is set as heater (111) in the connection controlling value of on-state be controlling value be.Being inscribed when passing through for delay time is being have passed through from the connection transfer moment, delay acquisition unit (105) obtains the measured value measured by amperometric determination portion (104), and the connection transfer moment is at the time of being determined as that the state for disconnecting controlling value is transferred to the state for being determined as connecting controlling value from controlling value determination unit (103).In the case that the measured value obtained in delay acquisition unit (105) under by the moment is more than permissible range, deterioration judging portion (106) are determined as that heater (111) or operation portion (112) are deteriorated.
Description
Technical field
The present invention relates to a kind of apparatus for diagnosing deterioration and method of the deterioration for the heating device for diagnosing and having heater.
Background technology
In industrial technology, there is the technique largely heated to material.In the technique of such heating, generally make
With electric heater (heater).In addition, temperature in use adjusts meter in the action control of electric heater.Attemperator uses thermoelectricity
The temperature for the process object (supervision object) that HEATER FOR MEASURING of the temperature sensors such as idol, temperature detecting resistance body coming is heated.It measures
The temperature gone out carries out numerical value in attemperator and shows.
In addition, in attemperator, according to the temperature (PV values) and set temperature (SP values) detected, it is defeated to find out control
Go out (MV values).Calculated control is output to the heater operation device being made of power regulator etc..Pass through heater
Operator, exports and controls the driving current of the 100V from source power supply according to above-mentioned control, and is output to heater.Pass through
The heating of the heater controlled in this way carrys out the temperature of control process object.In addition, attemperator has abnormal detection function, and
The abnormal temperature of the process object as supervision object, exception of temperature sensor etc. are detected, the abnormal phenomenon detected is made
It is output to outside for event information, to carry out alarm (warning) display.Such as the display that numerical value is shown is being carried out to temperature
Alarm is carried out in device to show.
In addition, in attemperator, the heaters such as the broken string of the heater exceptions of itself is detected (referring to patent document 1,
2).For example, measure be applied to heater current/voltage and find out virtual value electric power, according to the relationship of electric current and voltage into
Resistance value is found out to one step, the deterioration of heater is judged according to the difference of the degree of the variation of calculated resistance value, variation
(referring to patent document 1).In addition, judging with data obtained by the actual measurement measuring point tabular of current value using by control output
Heater deterioration (with reference to patent document 2).
Existing technical literature
Patent document
Patent document 1:No. 2683851 bulletin of patent
Patent document 2:No. 3988942 bulletin of patent
Invention content
Technical problems to be solved by the inivention
However, in the above-described techniques, firstly, it is necessary to measure the electric current for flowing to heater and the electricity for being applied to heater
Pressure.In addition, in the above-described techniques, the calculating for abnormality diagnostic parameter such as resistance value is cumbersome.In addition, in the above-described techniques,
In the presence of in order to investigate the time change of resistance value, time this problem is needed by the measurement of time etc..In this way, in above-mentioned skill
In art, until abnormal judgement, cumbersome calculating and measurement are needed.
The present invention completes to release above-described problem, and its object is to can be easier and more quickly judge
The exception of heater.
Solve the technological means of technical problem
The present invention relates to a kind of deterioration diagnosis methods, have:1st process, for being supplied to heating according in following times
The controlling value of device and be supplied to the current value of heater to determine upside feasible value and downside feasible value, to which setting is used for
The permissible range of the deterioration judging of heating device is carried out, which is the heating for constituting the heating device as deterioration diagnosis object
Device it is normal when;2nd process, to adding up to being supplied to from off-state is changed to on-state from heater when making normal
Time until the current value of hot device is in permissible range measures, and is set as delay time;3rd process, judgement control
Value processed is that heater is set as the disconnection controlling value of off-state or heater is set as in the connection controlling value of on-state
Which side;4th process is determined being judged as being transferred to by disconnecting the state of controlling value by the 3rd process from controlling value
Connection to connect the state of controlling value have passed through being inscribed when passing through for delay time from shifting the moment, and measurement is supplied to heater
Electric current and obtain measured value;And the 5th process, it is more than to allow model that the measured value obtained by the 4th process is inscribed when passing through
In the case of enclosing, it is determined as that heating device is deteriorated.
It, can also be in the 4th process, up to being by the moment from connecting and shifting the moment in above-mentioned deterioration diagnosis method
Only, it measures and is supplied to the electric current of heater and obtains measured value, be more than the time of permissible range in measured value in the 5th process
In the case of more than the set judgement time, it is determined as that heating device is deteriorated.
In above-mentioned deterioration diagnosis method, can also have:6th process is judged as breaking in controlling value by the 3rd process
In the state of opening controlling value, measures the electric current for being supplied to heater and obtain measured value;And the 7th process, when passing through the 6th process
The measured value of acquirement is in the case that 0 state other than around continue for the set abnormal determination time, to be determined as heater
It is abnormal.
Moreover, it relates to which a kind of apparatus for diagnosing deterioration, has:1st storage part stores permissible range, this is allowed
Range is to be used to carry out heating device according to set the determined upside feasible value of current value and downside feasible value
Deterioration judging permissible range, the current value supplies according to the controlling value for being supplied to the heating device in following times
To heater, the time be constitute the heating device that object is diagnosed as deterioration the heater it is normal when;2nd deposits
Storage portion, the storage delay time, the delay time be measure it is normal when heater from off-state is changed to on-state
Time until being supplied to the current value of heater in permissible range and obtain;Controlling value determination unit, consists of
Judge that controlling value is that heater is set as the disconnection controlling value of off-state or heater is set as to the connection control of on-state
Which side in value processed;Amperometric determination portion consists of the electric current for measuring and being supplied to heater;Postpone acquisition unit, from connecing
Being inscribed when passing through for delay time is have passed through from the logical transfer moment, obtains the measured value measured by amperometric determination portion, which turns
It is from being to disconnect the state of controlling value to be transferred to and be judged to being to turn on controlling value by controlling value determination unit judgement controlling value to move the moment
State at the time of;And deterioration judging portion, it consists of and surpasses when inscribing the measured value obtained by delay acquisition unit when passing through
In the case of crossing permissible range, it is determined as that heating device deteriorates.
In above-mentioned apparatus for diagnosing deterioration, delay acquisition unit can also be configured to obtain from connecting and shifting the moment up to warp
The measured value measured by amperometric determination portion until spending the moment, it is super that deterioration judging portion is configured to the measured value obtained in delay acquisition unit
The time of permissible range is spent more than in the case of the set judgement time, is determined as that heating device is deteriorated.
In above-mentioned apparatus for diagnosing deterioration, can also have:Acquisition unit when stopping is determined as by controlling value determination unit
In the state of disconnecting controlling value, measures the electric current for being supplied to heater and obtain measured value;And abnormality determination unit, stopping
When the measured value that obtains of acquisition unit be judgement in the case that 0 state other than around continue for the set abnormal determination time
Exception has occurred for heater.
Invention effect
Based on described above, according to the present invention it is possible to which obtaining being capable of exception that is easier and more quickly judging heater
Such excellent effect.
Description of the drawings
Fig. 1 is the composition figure for the composition for showing the apparatus for diagnosing deterioration 100 in embodiments of the present invention 1.
Fig. 2 is the flow chart for illustrating the deterioration diagnosis method in embodiments of the present invention 1.
Fig. 3 is the composition figure for the composition for showing the apparatus for diagnosing deterioration 100 in embodiments of the present invention 2.
Fig. 4 is the flow chart for illustrating the deterioration diagnosis method in embodiments of the present invention 2.
Specific implementation mode
In the following, with reference to attached drawing, illustrate embodiments of the present invention.
[Embodiment 1]
First, embodiments of the present invention 1 are illustrated using Fig. 1.Fig. 1 be show it is bad in embodiments of the present invention 1
Change the composition figure of the composition of diagnostic device 100.The apparatus for diagnosing deterioration 100 has benchmark storage part (the 1st storage part) 101, prolongs
Slow time storage part (the 2nd storage part) 102, controlling value determination unit 103, amperometric determination portion 104, delay acquisition unit 105, deterioration are sentenced
Determine portion 106 and display unit 107.The diagnosis of apparatus for diagnosing deterioration 100 is filled by the heating that heater 111 and operation portion 112 are constituted
The deterioration set.
Permissible range of the storage of benchmark storage part 101 for the deterioration diagnosis of heater 111 and operation portion 112 is (normal
Range).Permissible range be according to it is normal when be supplied to the controlling value of operation portion 112 (heating device) and be supplied to heater
The upside feasible value and downside feasible value of 111 current value is set.Permissible range is for carrying out heater 111 and behaviour
Make the deterioration judging of portion 112 (heating device).
For example, making datum line using heater-performance characteristic, heater-performance characteristic expression provides heater 111 continuous
The controlling value of variation with corresponding to the controlling value it is normal when heater 111 in electric current variation relationship.It can also incite somebody to action
Heater-performance characteristic itself is set as datum line.It is approached using as datum line alternatively, it is also possible to carry out broken line to heater-performance characteristic.Separately
Outside, can also by controlling value based on Discrete Change with corresponding to the controlling value it is normal when heater 111 in it is discrete
The broken line of the current value of variation approaches to make datum line.
It is set according to the upside feasible value of the current value relative to controlling value on the datum line and downside feasible value
Permissible range.By upside feasible value obtained by the upside feasible value based on the current value relative to controlling value on datum line
Line with based on downside feasible value line obtained by the downside feasible value relative to the current value relative to controlling value on datum line it
Between range as can heater 111 or operation portion 112 be considered as normal permissible range.
The 102 storage delay time of delay time storage part, the delay time be to from it is normal when for heater 111 and
Since off-state is to on-state change control until the current value for being supplied to heater 111 is in permissible range
Time be measured.The above-mentioned time is measured in advance.
Controlling value determination unit 103 judges that controlling value is that heater 111 is set as the disconnection controlling value of off-state or is incited somebody to action
Which side in the connection controlling value of on-state heater 111 be set as.Each controlling value is exported from control unit 113.According to by temperature
The measured value and set setting value that degree determination part 114 determines, each controlling value are calculated by control unit 113, and defeated
Go out to operation portion 112.
Control unit 113 is, for example, attemperator.Operation portion 112 is for example made of well known power regulator.Control unit
113 are controlled by well known on-off, and output disconnects controlling value or connects controlling value.In addition, control unit 113 is not by solid
Fixed cycle and make the output time of connection controlling value and disconnect the output time of controlling value respectively and temperature measuring value and warm
The deviation of degree setting value correspondingly changes and exports.It controls in this way, more stable temperature control can be carried out.
The driving current of the 100V obtained from commercial power supply is supplied to by operation portion 112 when receiving connection controlling value
Heater 111, and heater 111 is set as on-state.On the other hand, operation portion 112 stops when receiving disconnection controlling value
Heater 111 is set as off-state by the supply to the driving current of heater 111.Controlling value acquisition unit 103 is obtained from control
The function part (referring to patent document 1) of disconnection controlling value or connection controlling value that portion 113 processed exports.
Amperometric determination portion 104 measures the electric current for being supplied to heater 111.For example, amperometric determination portion 104 obtains effective current
Value is used as measured value.Amperometric determination portion 104 is for example made of well known current transformer.In the embodiment 1, amperometric determination
Portion 104 is used as the output of the alarm in the control unit 113 of attemperator.In this case, amperometric determination portion 104 is detected
The driving current value of heater 111 is flowed to, and is output to control unit 113, control unit 113 is by preset Alert Level and is somebody's turn to do
Detected value is compared, and when detected value is more than Alert Level, output indicates the abnormal alarm signal of heating temperature.In addition,
Measured value can also be average current value.
Being inscribed when passing through for delay time is being have passed through from the connection transfer moment, delay acquisition unit 105 obtains amperometric determination
The measured value that portion 104 measures, connection transfer moment are to judge controlling value from controlling value determination unit 103 to disconnect the shape of controlling value
At the time of state is transferred to the state for being determined as connecting controlling value.
In the case where the measured value for inscribing acquirement in postponing acquisition unit 105 when passing through is more than permissible range, deterioration
Determination unit 106 is determined as that heater 111 or operation portion 112 (heating device) deteriorate.For example, in delay acquisition unit 105
In the case that the measured value of acquirement is less than the downside feasible value for constituting permissible range or is more than upside feasible value, deterioration judging portion
106 are judged as the deterioration of heater 111 or operation portion 112.
In addition, delay acquisition unit 105 can also be configured to from connecting and shifting the moment until by the moment continuously
Obtain the measured value that amperometric determination portion 104 is measured.In addition, it is more than to allow that the measured value obtained in delay acquisition unit 105, which becomes,
The time of the exceptional value of range adds up to more than in the case of the set judgement time, and deterioration judging portion 106 is judged to heating
Device 111 or operation portion 112 deteriorate.
Such as in the case where being switched on control with control is disconnected with short interval, even if measured value is more than to allow model
It encloses, can not also measure sometimes.In addition, even if being measured out, the case where measured value during delay time is not used in judgement
Under, if being switched on disconnection before by delay time, can not also be judged.In this case, connect as described above
Measured value is obtained continuously, and total in the time as exceptional value is judged as deterioration more than in the case of judging the time.
According to the judgement of above-mentioned deterioration, it is not limited to the deterioration of heater 111, additionally it is possible to deterioration in decision portion 112,
Failure.Even if heater 111 do not have exception in the case of, sometimes also due to operation portion 112 it is in poor shape, be supplied to plus
The electric current of hot device 111 is abnormal.
In addition, in display unit 107 display will allow for range and the controlling value that is obtained by controlling value acquisition unit 103 and by
Measuring point configuration determined by the measured value that amperometric determination portion 104 obtains is sat using controlling value and measured value as 2 dimensional planes of axis
The chart put on.Said reference line can also be shown in display unit 107 together with permissible range.
In addition, apparatus for diagnosing deterioration 100 is that have CPU (Central Processing Unit;Central operation processing dress
Set), the computer equipments of main storage means, external memory and network connection device etc..Deterioration as computer equipment
Diagnostic device 100 enables CPU be acted according to the program being performed in main storage means, to realize above-mentioned each function.In addition,
Each function can also be made to be scattered in multiple computer equipments.
Next, illustrating the action of the apparatus for diagnosing deterioration 100 in embodiments of the present invention 1 using the flow chart of Fig. 2
Example (deterioration diagnosis method).
First, in step s 201, setting is for carrying out the deterioration judging as the heater 111 for deteriorating diagnosis object
Permissible range, and store to 101 Zhong [ of benchmark storage part;1st Gong Xu ].Permissible range by for according to it is normal when for behaviour
The current value made the controlling value in portion 112 and be supplied to heater 111 determines upside feasible value and downside feasible value to set.
Next, in step S202, sets delay time and store to 102 Zhong [ of delay time storage part;2nd Gong Xu ].
To from the heater 111 when making normal from off-state is changed to on-state up to being supplied to the current value of heater 111
Time until in permissible range measures, and is set as delay time.
Next, in step S203, deterioration judging portion 106 judges the beginning of judgement.Such as implement judgement by accepting
The input of instruction judged.In addition, judgement cycle time can also be for example set, according to the process of judgement cycle time
And it is set as the beginning of judgement.
When being judged as that judgement starts ("Yes" of step S203), in step S204, the judgement of controlling value determination unit 103 comes
From the controlling value of control unit 113;3rd Gong Xu ].Controlling value determination unit 103 judges that controlling value is to be set as heater 111 to disconnect shape
Which side in the connection controlling value of on-state heater 111 is set as by the disconnection controlling value of state.
Next, in step S205, delay acquisition unit 105 judges whether to be transferred to from the state for obtaining disconnection controlling value
Obtain the state for connecting controlling value.The state for connecting controlling value is obtained when being judged as being transferred to from the state for obtaining disconnection controlling value
When ("Yes" of step S205), in step S206, delay acquisition unit 105 starts to obtain the survey that amperometric determination portion 104 is measured
Definite value.Next, in step S207, delay acquisition unit 105 judges the delay time stored in delay time storage part 102
Process.When being judged as have passed through delay time ("Yes" of step S207), delay acquisition unit 105 terminates taking for measured value
, and enter step S208[4th Gong Xu ].
Next, in step S208, deterioration judging portion 106 under at the time of being judged as have passed through delay time by
Whether the measured value that delay acquisition unit 105 obtains is judged more than permissible range.It is more than the feelings of permissible range in measured value
Under condition, deterioration judging portion 106 is determined as that deterioration [ occurs for heater 111;5th Gong Xu ].Alternatively, it is also possible to when from transfer is connected
Having carved the time that the measured value obtained by delay acquisition unit 105 in a period of by until the moment is more than permissible range is more than
In the case of the set judgement time, deterioration judging portion 106 is determined as that heater 111 deteriorates.
Next, when deterioration judging portion 106 is determined as that heater 111 deteriorates ("Yes" of step S208), in step
In rapid S209, the state is notified.For example, by showing alarm in display unit 107, the deterioration of heater 111 is notified user
Judgement.
As described above, in the embodiment 1, it (is surveyed according to the current value being measured under real use state
Definite value) more than permissible range the case where judge to deteriorate.Therefore, according to embodiment 1, need not to the parameter for judgement into
Row calculating etc., also, the time change etc. of current value need not be measured.As a result, according to embodiment 1, it can be easier
And more quickly judge the exception of heater.
[Embodiment 2]
Next, illustrating embodiments of the present invention 2 using Fig. 3.Fig. 3 is the deterioration shown in embodiments of the present invention 2
The composition figure of the composition of diagnostic device 100a.Apparatus for diagnosing deterioration 100a has:Benchmark storage part (the 1st storage part) 101 prolongs
Slow time storage part (the 2nd storage part) 102, controlling value determination unit 103, amperometric determination portion 104, delay acquisition unit 105, deterioration are sentenced
Determine portion 106 and display unit 107.These compositions are identical as the above embodiment 1.Apparatus for diagnosing deterioration in embodiment 2
Acquisition unit 108 and abnormality determination unit 109 when 100a has stopping.In addition, the apparatus for diagnosing deterioration 100a in embodiment 2 is removed
Except the deterioration diagnosis for carrying out the heating device being made of heater 111 and operation portion 112, abnormal judgement is also carried out.
In the state that controlling value determination unit 103 is judged to controlling value to disconnect controlling value, acquisition unit 108 obtains when stopping
The measured value that amperometric determination portion 104 is measured.The measured value that acquisition unit 108 obtains when stopping is that 0 state other than around is held
In the case of having continued the set abnormal determination time, abnormality determination unit 109 is determined as that heater 111 is abnormal.
In addition, apparatus for diagnosing deterioration 100a is that have CPU (Central Processing Unit;Central operation processing dress
Set), the computer equipments of main storage means, external memory and network connection device etc..Deterioration as computer equipment
Diagnostic device 100a enables CPU be acted according to the program being performed in main storage means, to realize above-mentioned each function.Separately
Outside, each function can also be made to be scattered in multiple computer equipments.
Next, illustrating that the apparatus for diagnosing deterioration 100a's in embodiments of the present invention 2 is dynamic using the flow chart of Fig. 4
Make example (deterioration diagnosis method).
First, in step S401, the deterioration judging for carrying out the heater 111 as deterioration diagnosis object is set
Permissible range, and store to 101 Zhong [ of benchmark storage part;1st Gong Xu ].Permissible range be according to according to it is normal when for operation
The controlling value in portion 112 and upside feasible value and the downside feasible value of the current value of heater 111 is supplied to set.
Next, in step S402, sets delay time and store to 102 Zhong [ of delay time storage part;2nd Gong Xu ].
To from the heater 111 when making normal from off-state is changed to on-state up to supply to heater 111 current value
Time until in permissible range measures, and is set as delay time.
Next, in step S403, deterioration judging portion 106 judges the beginning of judgement.For example, implementing judgement by accepting
The input of instruction judged.In addition, for example, it is also possible to judgement cycle time is set, according to the warp of judgement cycle time
Cross and be set as the beginning of judgement.
When being judged as that judgement starts ("Yes" of step S403), in step s 404, the judgement of controlling value determination unit 103 comes
From the controlling value of control unit 113;3rd Gong Xu ].Controlling value determination unit 103 judges that controlling value is to be set as heater 111 to disconnect shape
Which side in the connection controlling value of on-state heater 111 is set as by the disconnection controlling value of state.
Next, in step S405, delay acquisition unit 105 judges whether to be transferred to from the state for obtaining disconnection controlling value
Obtain the state for connecting controlling value.The state for connecting controlling value is obtained when being judged as being transferred to from the state for obtaining disconnection controlling value
When ("Yes" of step S405), in step S406, delay acquisition unit 105 starts to obtain the survey that amperometric determination portion 104 is measured
Definite value.Next, in step S 407, delay acquisition unit 105 judges the delay time stored in delay time storage part 102
Process.When being judged as have passed through delay time ("Yes" of step S407), delay acquisition unit 105 terminates taking for measured value
, and enter step S408[4th Gong Xu ].
Next, in step S408, deterioration judging portion 106 is to passing through under at the time of being judged as have passed through delay time
Whether the measured value that delay acquisition unit 105 obtains is judged more than permissible range.The case where measured value is more than permissible range
Under, deterioration judging portion 106 is determined as that deterioration [ occurs for heater 111;5th Gong Xu ].Alternatively, it is also possible to when from transfer is connected
Having carved the time that the measured value obtained by delay acquisition unit 105 in a period of by until the moment is more than permissible range is more than
In the case of the set judgement time, deterioration judging portion 106 is determined as that heater 111 deteriorates.
Next, when deterioration judging portion 106 is determined as that heater 111 deteriorates ("Yes" of step S408), in step
In rapid S409, the state is notified.Such as by showing alarm in display unit 107, the deterioration of heater 111 is notified to sentence user
It is fixed.
On the other hand, in step S405, continue in the state that delay acquisition unit 105 makes acquirement disconnect controlling value and do not take
In the case of controlling value must being connected ("No" of step S405), in step S410, acquisition unit 108 obtains amperometric determination when stopping
The measured value that portion 104 is measured.Next, in step S411, acquisition unit 108 obtains when the judgement of abnormality determination unit 109 stops
Measured value whether be 0 other than around.In the case where measured value is 0 ("No" of step S411), step S404, control are returned to
Value determination unit 103 processed continues the judgement of the controlling value from control unit 113.
On the other hand, stop when acquisition unit 108 obtain measured value be 0 other than around in the case of (step S411
"Yes"), in step S412, abnormality determination unit 109 is added the time for obtaining 0 measured value other than around.Next,
In step S403, abnormality determination unit 109 judges whether the time being added is more than the set abnormal determination time.In addition
In the case that time is less than the abnormal determination time ("No" of step S413), step S404, controlling value determination unit 103 are returned to
Continue the judgement of the controlling value from control unit 113.
On the other hand, (the step in the case where deterioration judging portion 106 is judged as that the time being added is more than the abnormal determination time
The "Yes" of S413), in step S411, notify the state (exception).Such as by showing alarm in display unit 107, to
Family notifies the abnormal determination of heater 111.
It as described above,, can be easier and more fast in the same manner as the above embodiment 1 according to embodiment 2
The exception of heater is judged fastly.In addition, according to embodiment 2, due to measuring current value when it is disconnected, so can sentence
It is abnormal to determine broken string of heater etc..
As described above, in accordance with the invention it is possible to exception that is easier and more quickly judging heater.According to
The present invention, the instantaneous value of the heater current value obtained to service life in abnormal judgement, in order to be judged,
The tendency that temporal variation need not be found out, so as to promptly implement to judge.
In addition, due to the use of the permissible range based on datum line, so permissible range is in the model that can get controlling value
Enclose interior continuous determinating reference.Therefore, from table reference situations such as, is different, and interpolation etc. need not be carried out in judgement.In addition, by
The current value of heater is flowed in measurement, so, voltage need not be measured, also, need not specially find out resistance value.
But it is also possible to be judged like that as follows.For example, it is also possible to extend the setting of permissible range, only sending out
It is determined as exception when having given birth to larger exception.Setting (difference relative to datum line) alternatively, it is also possible to will allow for range is divided into
Multiple stages are judged.For example, in the 1st stage, it is judged as the possibility for having deterioration.In the 2nd stage, it is judged as there is deterioration
The possibility of exacerbation.In the 3rd stage, it is judged as that deterioration is implicitly present in.Degree more than this is judged as failure, broken string.
Alternatively, it is also possible to no matter which type of controlling value heater current measured value being all always feelings near 0 for
Under condition, it is determined as the broken string (or complete failure of the failure of power regulator, other and the relevant device of heating) of heater.
In addition, in the case of setting delay time in judgement, it can also be when by more than certain number continuously occurring
After the exception of instantaneous value, just it is determined as that deterioration is implicitly present in.Alternatively, if measured value close to 0, can also be judged to breaking
Line.Even if can accurately be judged if so that permissible range is narrowed as a result,.In addition, can be according to deviating from normal range (NR)
Amplitude is abnormal into the latitude of emulsion to judge.
Judged in addition, though measuring heater current value, but in terms of instrument, it sometimes also can be because supplying electric power
Reduce, power regulator (operation portion) in poor shape and there is the case where measured value is more than permissible range.Thus, it can be known that in sight
Make, in the case where being judged as that heater, which is replaced with normal product, later extremely can not release abnormal judgement, heating
Position other than device is problematic.In this way, the present invention can be used as so-called loop diagnostic.
Herein, datum line is described in more detail.As datum line, it can also use and heater-performance characteristic progress broken line is forced
Line obtained from close.Datum line after broken line approaches is on the 2 dimensional plane coordinates using controlling value and measured value as axis by 1
What above line segment (simple equation) was constituted.Datum line after being approached by using such broken line sets permissible range, energy
Enough greatly reduce the data volume kept as permissible range.Datum line is made of the combination of straight line (simple equation),
Therefore permissible range is also made of the combination of straight line (simple equation), and data volume is considerably less.
For example, to it is normal when the heater-performance characteristic of heater be measured, approached using broken line, according to determining plus
Hot device characteristic, to find out datum line.Stated number is set on the curve of obtained heater-performance characteristic with defined condition
The set point (inflection point) of amount, the set point for being used in combination straight line (line segment) connection set is to be used as datum line.In addition, advising
The electric current relative to controlling value in heater (heating device) when measuring normal at the measuring point of fixed number amount is to obtain electric current
Value, and the set point based on controlling value and current value of specified quantity is set, adjacent set point is connected to be set as with straight line
Datum line.
9 set points are set on curve on the 2 dimensional plane coordinates using controlling value and measured value as axis.In addition, extremely
It is few that set point is set separately to the minimum value of controlling value and the maximum value of controlling value.Next, by with straight line by adjacent 2
A set point is connected to each other, to make datum line.For example, being sequentially connected 9 set points and making datum line.Datum line is by 8
Line segment is constituted.
In addition, the set point for making datum line can also be set as shown below.First, with controlling value and survey
Definite value is minimum value and maximum value pair with the controlling value on the curve of expression heater-performance characteristic on 2 dimensional plane coordinates of axis
Match position set point with answering, setting connects their the 1st and approaches line.In addition, approaching upside feasible value as defined in line setting for the 1st
Line and downside feasible value line.It is the candidate of permissible range by the region that upside feasible value line and downside feasible value wire clamp are held.
Determining that the 1st approaches line and in the state of set the candidate of permissible range as described above by 2 set points,
Judgment curves converge in the candidate of permissible range, and the 1st maximum deviation for approaching line and curve is less than and preset allows
The case where deviation.In curve convergence in permissible range and in the case that maximum deviation is less than allowable deviation, approaches line by the 1st and make
On the basis of line.
On the other hand, it in the case where generating region of the curve more than permissible range, approaches line for the 1st and finds out in measured value
On negative direction and position that the deviation of curve is maximum value and in the positive direction of measured value and the deviation of curve is maximum
The position of value.
Next, the additional new set point on the curve at 2 calculated positions.Next, setting will be by chasing after
Line is approached in new the 2nd for adding and becoming 4 control point connections.Hold in addition, approaching upside as defined in line setting for the new the 2nd
Perhaps it is worth line and downside feasible value line.
Curve convergence is confirmed in the appearance formed based on the upside feasible value line and downside feasible value line that obtain in this way
Perhaps range and the case where the 2nd maximum deviation for approaching line and curve is less than allowable deviation.For example, in this stage, curve convergence
The maximum deviation that line and curve are approached in permissible range inscribe the 2nd is less than allowable deviation, so, line is approached as benchmark using the 2nd
Line.
According to the production method of said reference line, by suitably setting maximum deviation, it can not bootlessly increase setting
It puts and sets the permissible range that can carry out practical deterioration judging.In addition, according to the setting condition of allowable deviation, position is not necessarily to
It is compared with permissible range and approximating curve is only determined by the comparison of allowable deviation and maximum deviation.
Alternatively, it is also possible to make datum line as shown below.First, in heater when normal (heating device),
The multiple controlling values of setting in the min/max range of controlling value, measure heater current value at set each controlling value.
For example, controlling value is made to be changed by 10% amplitude in the range of 0~100%, and heater electricity is measured at each controlling value
Flow valuve.As the measurement as a result, using multiple set points based on obtained each controlling value and each heater current value, will use
Straight line connects broken line obtained from adjacent set point and is set as carrying out datum line obtained from broken line approaches to heater-performance characteristic.
In addition, the present invention is not limited to embodiments described above, it in the technological thought of the present invention, can be by this
It is obvious that the commonsense people in field, which implements a large amount of deformation and combination,.
Symbol description
101 ... benchmark storage parts (the 1st storage part);102 ... delay time storage parts (the 2nd storage part);103 ... controlling values
Determination unit;104 ... amperometric determination portions;105 ... delay acquisition units;106 ... deterioration judging portions;107 ... display units;111 ... heating
Device;112 ... operation portions;113 ... control units;114 ... temperature measuring portions.
Claims (6)
1. a kind of deterioration diagnosis method, which is characterized in that have:
1st process, the current value for being supplied to heater according to the controlling value for being supplied to heating device in following times come
Determine upside feasible value and downside feasible value, the deterioration judging to setting for carrying out the heating device allows model
Enclose, the time be constitute as deterioration diagnose object the heating device the heater it is normal when;
2nd process, to described up to being supplied to from off-state is changed to on-state from heater when making normal
Time until the current value of heater is in the permissible range measures, and is set as delay time;
3rd process judges that the controlling value is that the heater is set as the disconnection controlling value of off-state or described will be added
Which side in the connection controlling value of on-state hot device be set as;
4th process is transferred to by being judged as the state for disconnecting controlling value by the 3rd process from the controlling value
Being inscribed when passing through for the delay time is have passed through from the connection transfer moment for being judged as the state for connecting controlling value, is surveyed
Surely it is supplied to the electric current of the heater and obtains measured value;And
5th process, it is more than the permissible range to be inscribed in described pass through through the measured value that the 4th process obtains
In the case of, it is determined as that the heating device is deteriorated.
2. deterioration diagnosis method according to claim 1, which is characterized in that
It is from the moment is shifted in the connection until described by until the moment, measurement is supplied to described add in the 4th process
The electric current of hot device simultaneously obtains measured value,
It it is more than the set judgement time in the time that the measured value is more than the permissible range in the 5th process
In the case of, it is determined as that the heating device is deteriorated.
3. deterioration diagnosis method according to claim 1 or 2, which is characterized in that have:
6th process is measured and is supplied in the state that the controlling value is judged as the disconnection controlling value by the 3rd process
It is given to the electric current of the heater and obtains measured value;And
7th process, when the measured value obtained by the 6th process is that 0 state other than around continue for set exception
In the case of judging the time, it is determined as that the heater is abnormal.
4. a kind of apparatus for diagnosing deterioration, which is characterized in that have:
1st storage part, stores permissible range, the permissible range be according to for the determined upside feasible value of current value and
Downside feasible value and set for carry out heating device deterioration judging permissible range, the current value is according to when following
Between be supplied to the controlling value of the heating device and be supplied to heater, the time be constitute as deterioration diagnose object it is described
The heater of heating device it is normal when;
2nd storage part, storage delay time, the delay time are that heater when measuring normal is changed from off-state
It is risen for on-state obtained from the time until the current value for being supplied to the heater is in the permissible range;
Controlling value determination unit, it is that the heater is set as to the disconnection controlling value of off-state to consist of the judgement controlling value
Or which side in the connection controlling value of on-state the heater is set as;
Amperometric determination portion consists of the electric current for measuring and being supplied to the heater;
Postpone acquisition unit, being inscribed when passing through for the delay time is being have passed through from connecting and shifting the moment, is being obtained by described
The measured value that amperometric determination portion measures, the connection transfer moment is to be determined as the controlling value from by the controlling value determination unit
Be it is described disconnect controlling value state be transferred to be determined as be it is described connect controlling value state at the time of;And
Deterioration judging portion, consisting of the measured value inscribed when in described pass through and obtained by the delay acquisition unit is more than
In the case of the permissible range, it is determined as that the heating device is deteriorated.
5. apparatus for diagnosing deterioration according to claim 4, which is characterized in that
The delay acquisition unit is configured to obtain from the moment is shifted in the connection until the process moment by the electricity
The measured value that determination part measures is flowed,
The deterioration judging portion is configured to surpass in the time that the measured value that the delay acquisition unit obtains is more than the permissible range
In the case of spending the set judgement time, it is determined as that the heating device is deteriorated.
6. according to the apparatus for diagnosing deterioration described in claim 4 or 5, which is characterized in that have:
Acquisition unit when stopping measures supply in the state of being determined as the disconnection controlling value by the controlling value determination unit
To the heater electric current and obtain measured value;And
Abnormality determination unit, the measured value that acquisition unit obtains in the stopping continue for set for 0 state other than around
The abnormal determination time in the case of, be determined as that exception has occurred in the heater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017070259A JP2018174047A (en) | 2017-03-31 | 2017-03-31 | Device and method for degradation diagnosis |
| JP2017-070259 | 2017-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108693398A true CN108693398A (en) | 2018-10-23 |
Family
ID=63844688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810270708.7A Pending CN108693398A (en) | 2017-03-31 | 2018-03-29 | Apparatus for diagnosing deterioration and method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2018174047A (en) |
| KR (1) | KR20180111569A (en) |
| CN (1) | CN108693398A (en) |
| TW (1) | TWI645199B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261666A (en) * | 2019-07-12 | 2019-09-20 | 江苏丰东热技术有限公司 | A kind of multi-region current test method and multi-region current detecting system |
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- 2018-03-27 KR KR1020180034972A patent/KR20180111569A/en not_active Application Discontinuation
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| JPH02227980A (en) * | 1989-02-28 | 1990-09-11 | Omron Tateisi Electron Co | Heater discontinuity sensing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201837479A (en) | 2018-10-16 |
| JP2018174047A (en) | 2018-11-08 |
| KR20180111569A (en) | 2018-10-11 |
| TWI645199B (en) | 2018-12-21 |
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