CN109752178A - Valve maintenance assisting system and method - Google Patents
Valve maintenance assisting system and method Download PDFInfo
- Publication number
- CN109752178A CN109752178A CN201811312880.0A CN201811312880A CN109752178A CN 109752178 A CN109752178 A CN 109752178A CN 201811312880 A CN201811312880 A CN 201811312880A CN 109752178 A CN109752178 A CN 109752178A
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- Prior art keywords
- valve
- bellows
- aperture
- value data
- signature
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Details Of Valves (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
Valve maintenance assisting system of the present invention and method, especially for the efficiency for improving the upkeep operation of valve the case where handling bellows valve.In the present invention, it will safeguard that candidate valve is set as bellows valve A, C, M (S201).The valve signature (VS) (I, II) of bellows valve A, C, M are made according to the aperture measurement Value Data (D1) of bellows valve A, C, M and pressure measurement Value Data (D2), and whether there is or not the indexs of damaged query to be presented to operator (S203~S207) as bellows is informed.
Description
Technical field
The present invention relates to a kind of valve maintenance assisting system and methods, and to having undulatory bellows, (bellows is close
Sealing) the upkeep operation of bellows valve supported, the bellows is outer with the combined valve shaft of spool to surround
The mode in week is arranged.
Background technique
All the time, the valve used in such as petroleum, chemical plant must pay special attention to safety, therefore carry out periodically
Maintenance.Figure 15 shows an example of the valve (control valve) used in such as petroleum, chemical plant.
The valve 100 has valve body 101, locator 102 and operator 103.Operator 103 is spring type diaphragm knot
Structure, according to supplied from locator 102 air pressure Po make diaphragm (diaphragm of operator) 103a resist spring 103b power and position
It moves, so that valve shaft (valve rod) 104 is moved up and down, so that the aperture of control valve is (between spool 105 and seat ring 106
Gap).That is, adjusting the flowing of fluid.
Locator 102 detects valve shaft according to the rotational angle position of the feedback rod 107 to link together with valve shaft 104
The 104 practical aperture of lift location, that is, valve, and will be corresponding with the difference of setting aperture empty with the practical aperture detected
Air pressure Po is supplied to operator 103.
In the valve 100, the periphery with the combined valve shaft 104 of spool 105 is provided with undulatory ripple
(bellows seal) 108 is managed, to prevent the External leakage of fluid.The bellows 108 is by with corrosion proof metal material structure
At, by around valve shaft 104 periphery in a manner of be arranged in the lower flange 109 to link together with valve body 101.
In lower flange 109, bellows 108 is supported between ripple pipeloop 111 and ripple Pipe Flange 112, the ripple
Pipeloop 111 is inlaid on valve shaft 104, and the ripple Pipe Flange 112 is clipped between lower flange 109 and upper flange 110.In upper flange
In 110, it is provided with gland packing 113 between the outer peripheral surface of valve shaft 104 and the inner peripheral surface of upper flange 110, to further prevent
The External leakage of fluid.
This valve 100 for having undulatory bellows 108 is known as bellows valve (such as referenced patent document 1).
Hereinafter, with symbol VB indicates bellows valve and is distinguish with the valve of other forms 100.In the following description, it is being known as
In the case where valve 100, refer to the valve including bellows valve VB.
Furthermore there is the case where using the case where inverse actuation operator and using positive actuation operator in valve 100.Inverse actuation
Operator is that the aperture of valve is exerted a force towards closing direction using the power of spring as bellows valve VB shown in figure 15.Just
Actuation operator is on the contrary, be that the aperture of valve is exerted a force towards opening direction using the power of spring.In addition, in ripple shown in figure 15
It is to make 103 actuation of operator by air pressure, but also have through the hydraulic type for making 103 actuation of operator in pipe valve VB.
It is being provided in factory of this valve etc., must efficiently safeguard a large amount of valves, in order to improve the upkeep operation
Efficiency, it has been suggested that have valve stick-slip detection (such as referenced patent document 2), valve oscillation test (such as referenced patent document
3), the methods of valve scale attachment detection (such as referenced patent document 4).
[existing technical literature]
[patent document]
[patent document 1] Japanese Patent Laid-Open 2007-154929 bulletin
No. 3254624 bulletins of [patent document 2] Japanese Patent No.
[patent document 3] Japanese Patent Laid-Open 2015-114942 bulletin
[patent document 4] Japanese Patent Laid-Open 2015-114943 bulletin
[patent document 5] Japanese Patent Laid-Open 2017-54409 bulletin
[patent document 6] Japanese patent special table 2014-524026 bulletin
Summary of the invention
[problems to be solved by the invention]
However, being without it may be said that complete, the sufficient upper limit for the efficiency of safety, upkeep operation.Stone
Use has a large amount of valves in oil, chemical plant etc., therefore, is seeking the further improvement of the efficiency of upkeep operation always.
The present invention is to form in order to solve this problem, and its purpose is to provide one kind especially for processing bellows valve
The case where can improve valve upkeep operation efficiency valve maintenance assisting system and method.
[technical means to solve problem]
In order to reach this purpose, the present invention is a kind of valve maintenance assisting system (200), to having undulatory wave
The upkeep operation of the bellows valve (VB) of line pipe (108) is supported, and bellows is combined with spool (105) to surround
The mode of the periphery of valve shaft (104) is arranged, which has: measured value data store (1),
Storage aperture measurement Value Data (D1) and pressure measurement Value Data (D2), aperture measurement Value Data are opened from measuring bellow valve
The aperture measurement portion (21) of degree is sent, and pressure measurement Value Data is sent from pressure measurement portion (22), the pressure measurement
The Fluid pressure (Po) of portion's measurement supply extremely operator (103) of driving bellows valve；Valve signature preparing department (3), basis
The aperture measurement Value Data and pressure measurement Value Data stored in measured value data store, production make the aperture court of bellows valve
The relationship of the aperture of the required Fluid pressure and bellows valve to operator and make ripple when increasing the direction change gone down
The pass of the aperture of the required Fluid pressure and bellows valve to operator when the direction change that the aperture of pipe valve is gone down towards reduction
System, as valve signature (VS (I, II))；And diagnosis index presentation portion (4), presentation are made by valve signature preparing department
Diagnosis index of the valve signature out as bellows valve.
In the present invention, in measured value data store aperture measurement Value Data of the storage from aperture measurement portion and
Pressure measurement Value Data from pressure measurement portion.Valve signature preparing department is according to the aperture stored in measured value data store
Value Data and pressure measurement Value Data are measured, pair required when the direction change for making the aperture of bellows valve go down towards increase is made
The relationship of the aperture of the Fluid pressure and bellows valve of operator and the direction change for making the aperture of bellows valve go down towards reduction
The relationship of the aperture of the required Fluid pressure and bellows valve to operator is as valve signature when change.
In bellows valve, when bellows occurs when bending part generates the breakage such as cracking (when generation is drawn in bellows
When stretching slightly opening and when bellows is compressed, opening is plugged such breakage), especially bellows with tension spring that
In the opening amount region (stretch zones) that the form of sample deforms, the power of bellows deformation is made to will appear variation.This makes bellows
The variation of the power of deformation is showed in the form of the variation of valve signature.In the present invention, by with the diagnosis of bellows valve
The valve signature is presented in the form of index and whether there is or not damaged queries to inform operator by bellows.That is, operator can according to
The variation of the valve signature that the form of diagnosis index is presented infers whether bellows has occurred breakage.
Furthermore it in the above description, as an example, is illustrated using parenthesized reference symbol and is wanted with the composition of invention
Constituent element on the corresponding attached drawing of element.
[The effect of invention]
As mentioned above, according to the present invention, ripple is made according to aperture measurement Value Data and pressure measurement Value Data
The valve signature of pipe valve, the valve signature produced (inform that whether there is or not damaged queries for bellows with the diagnosis index of bellows valve
Index) form be presented to operator, especially for processing bellows valve the case where, the upkeep operation of valve can be improved
Efficiency.
Detailed description of the invention
Fig. 1 is tensional state (low aperture side) and the compression for schematically showing the bellows in the case where breakage has occurred
The figure of state (side Gao Kaidu).
Fig. 2 is the block diagram for indicating the composition of the mian part of valve maintenance assisting system of embodiments of the present invention 1.
Fig. 3 is to indicate to accumulate aperture measurement Value Data and pressure in the measured value data store of the valve maintenance assisting system
Measure the flow chart of the situation of Value Data.
Fig. 4 is opening for the valve in 1 up and down motion illustrated in the case that the operator of valve is set as inverse actuation operator
Spend the figure of the variation of θ and air pressure Po.
Fig. 5 is opening for the valve in 1 up and down motion illustrated in the case that the operator of valve is set as positive actuation operator
Spend the figure of the variation of θ and air pressure Po.
Fig. 6 is the flow chart to illustrate the movement of the valve maintenance assisting system.
Fig. 7 is the concept map for indicating an example of valve configuration of maintenance object factory.
Fig. 8 is the figure of the variation of the setting aperture θ sp (SP) and practical aperture θ pv (PV) when indicating valve signature test.
Fig. 9 is to open up the valve signature VS (I, II) under the normal condition of bellows valve together with benchmark (least square straight line L)
The figure shown.
Figure 10 is the valve signature VS (I, II) and benchmark (least square straight line L) one in the case that bellows to be had occurred to breakage
And the figure shown.
Figure 11 is to indicate to safeguard that the diagnosis index of candidate valve (bellows valve) shows exemplary figure.
Figure 12 is to indicate the valve signature VS (I, II) under the normal condition of bellows valve being shown in same picture as benchmark
On example figure.
Figure 13 is to indicate that the figure for simplifying the example that index presentation portion replaces diagnosis index presentation portion and benchmark presentation portion is arranged.
Figure 14 is the factory for illustrating embodiments of the present invention 2 and its composition (actual load of embodiment 1 of equipment management system
Example) figure.
Figure 15 is the figure for indicating an example of control valve (bellows valve).
Specific embodiment
(principle of invention)
Inventor notices following situation: using the bellows valve of bellows (bellows seal), working as wave
Line pipe occur bending part generate cracking etc. it is damaged when (when slightly opening occurs when bellows is stretched and in bellows quilt
When opening is plugged such breakage when compression), especially (stretched in the opening amount region to deform in the form of as tension spring
Region) in, so that the power of bellows deformation is will appear variation.
That is, in the case where deforming in the form of as compressed spring, damaged portion can maintain tightlock status (with
Not damaged same state), in contrast, damaged portion can become in the case where deforming in the form of as tension spring
Therefore disengaged condition generates difference under compressive state and tensional state.
Fig. 1 schematically shows the tensional state and compressive state of the bellows in the case where breakage has occurred.Fig. 1's
(a) indicate that tensional state, (b) of Fig. 1 indicate compressive state.As shown in (a) of Fig. 1, in the case where being deformed as tension spring,
Damaged part is stretched and causes damaged (cracking) that deterioration etc. occurs, and is easy to have an impact the movement of valve as a result,.Another party
Face, as shown in (b) of Fig. 1, in the case where being deformed as compressed spring, even if damaged part is compressed, damaged part
It can touch, therefore the deterioration etc. for being not susceptible to damaged (cracking) is therefore not easy to produce influence to the movement of valve.Furthermore if
It is bellows valve VB shown in figure 15, then becoming form as compressed spring is high aperture side, becomes form as tension spring
For low aperture side.
In view of the installation condition of bellows, this makes the variation of the power of bellows deformation in the form of the variation of valve signature
It shows.That is, " aperture of bellows valve will be made towards the fluid pressure to operator required when increasing the direction change gone down
The relationship of power and the aperture of bellows valve and make the aperture of bellows valve towards required to behaviour when reducing the direction change gone down
Make the relationship of the Fluid pressure of device and the aperture of bellows valve " as in the case where valve signature, with the variation of the valve signature
Form show.Furthermore about valve signature, due to also having displaying in patent document 5,6 etc., so herein detailed
Describe bright be omitted in detail.
Inventor expects following content: the valve signature is presented to operation in the form of the diagnosis index of bellows valve
Member, thereby, it is possible to infer bellows, whether there is or not damaged queries.That is, in the constricted zone (high opening amount region) relative to valve signature
For be biased to stretch zones (low opening amount region) and characteristic variations have occurred under such circumstances, operator may infer that bellows
There is damaged query.As a result, especially for processing bellows valve the case where, the efficiency of the upkeep operation of valve can be improved.
Furthermore it can be using the valve signature under the normal condition of bellows valve as the benchmark for the diagnosis index produced
It shows, or will be in the intermediate valuable average line in aperture side of bellows valve (such as the number using aperture 10~90%
According to the least square straight line of the reciprocal data found out) it is showed as the benchmark for the diagnosis index produced.As a result, can
The characteristic variations of the valve signature of bellows valve are recognized in the form of the difference with benchmark.
(embodiment 1)
In the following, with reference to the accompanying drawings, detailed description of embodiments of the present invention.Fig. 2 is to indicate embodiments of the present invention 1
The block diagram of the composition of the mian part of valve maintenance assisting system.Herein, to simplify the explanation, the example of the ID (identification information) of valve
Deng simpler than being utilized in actual factory.
The valve maintenance assisting system 200 of present embodiment by the hardware that is made of processor and storage device and with
These hardware cooperate and realize the program of various functions to realize, have measured value data store 1, valve ID storage unit 2, valve
Door feature preparing department 3, determination unit 5, threshold value storage unit 6, determines result presentation portion 7 and benchmark presentation portion at diagnosis index presentation portion 4
8。
In the valve maintenance assisting system 200, storage valve used in the factory in measured value data store 1
The aperture measurement Value Data D1 that 100 aperture measurement portion 21 is sent and the pressure measuring value sent from pressure measurement portion 22
Data D2.
That is, valve 100 used in factory has the aperture measurement portion 21 for the aperture θ for measuring the valve and measurement supplies extremely
The pressure measurement portion 22 of the air pressure Po of the operator of the valve.Aperture measurement portion 21 using the aperture θ for the valve measured as
Aperture measurement Value Data D1 is sent to valve maintenance assisting system 200, pressure measurement portion 22 using the air measured pressure Po as
Pressure measurement Value Data D2 is sent to valve maintenance assisting system 200.
As indicating its flow chart in Fig. 3, when receiving the aperture measurement Value Data D1 from aperture measurement portion 21
When (step S101's be), the aperture measurement Value Data D1 that valve maintenance assisting system 200 receives this is stored to measured value
Data store 1 (step S102), when receiving the pressure measurement Value Data D2 from pressure measurement portion 22 (step S103's
It is), the pressure measurement Value Data D2 that valve maintenance assisting system 200 receives this is stored to (the step of measured value data store 1
Rapid S104).
The valve in 1 up and down motion in the case that the operator of valve 100 is set as inverse actuation operator is illustrated in Fig. 4
The aperture θ (aperture measurement Value Data D1) and air of door press the variation of Po (pressure measurement Value Data D2), illustrate in Fig. 5 by valve
Door 100 operator be set as positive actuation operator in the case where 1 time move up and down in valve aperture θ (aperture measurement value
Data D1) and air pressure Po (pressure measurement Value Data D2) variation.
Furthermore in the present embodiment, from the aperture measurement portion 21 of valve 100 and pressure measurement portion 22 by aperture measurement value
Data D1 and pressure measurement Value Data D2 are periodically sent to measured value data store 1, in the form of time series data
Accumulation is gone down.
In addition, being provided with a large amount of valves including bellows valve VB (Figure 15) in the present embodiment, in factory
100, come from the aperture measurement Value Data D1 (D1 of these valves 100 (100-1~100-N)1~D1N) and pressure measurement Value Data
D2(D21~D2N) be associated with the ID of the valve and accumulate in measured value data store 1.
In the following, referring to flow chart shown in fig. 6 on one side, the movement of the valve maintenance assisting system 200 is being mingled on one side
It is specifically described in the case where the function in each portion.
Operator is using the valve 100-1~100-N being arranged in factory as measurement object, from measurement object valve 100-1
It determines to safeguard candidate valve in~100-N, and registers maintenance candidate's valve (step S201).
In this case, it is registered as safeguarding that the ID (hereinafter also referred to valve ID) of the valve of candidate valve is stored to valve dimension
Protect the valve ID storage unit 2 of assisting system 200.
For example, there is 26 valves 100 in factory, to this 26 valves 100 allocated in advance respectively " A ", " B ", " C " ...,
" M " ..., " X ", " Y ", the intrinsic ID such as " Z ".In the case where valve A, M, C are set to maintenance candidate's valve, operator's input
" A ", " M ", " C " are used as valve ID.
In the present embodiment, valve A, M, C is bellows valve VB as shown in Figure 15, it is assumed that in specific regular work
Prepreerence maintenance object can be chosen to be in factory's maintenance.Hereinafter, valve A, M, C are also referred to as bellows valve A, M, C.
Fig. 7 is the concept map for indicating an example of valve configuration of maintenance object factory.In the present embodiment, valve ID
Valve 100-A (bellows valve A), the 100-M (bellows valve M) of " A ", " M " are disposed on the flow path 11-1 of flow path ID " 1 ", valve
The valve 100-C (bellows valve C) of door ID " C " is disposed on the flow path 11-3 of flow path ID " 3 ".
12-A, 12-C, 12-M in Fig. 7 are flow measuring probe, and 13 be groove tank, and 14 be pressure transmitter.Furthermore in Fig. 7,
Record is omitted in valve other than valve ID " A ", " C ", " M ".
When the production instruction for having diagnosis index (step S202's be), valve signature preparing department 3 reads valve ID storage
ID " A ", " C ", " M " (the step S203) of the candidate valve of maintenance stored in portion 2, and the valve ID " A " to the reading, " C ",
The valve 100 of " M " carries out valve signature test (step S204).
In valve signature test, act valve 100 slowly according to fully closed → standard-sized sheet → fully closed sequence.Figure
8 indicate the variation of setting aperture θ sp (SP) and the variation of practical aperture θ pv (PV).The valve obtained by valve signature test
The aperture measurement Value Data D1 and pressure measurement Value Data D2 of door 100 are stored as test data to measured value data store 1.
When terminate to valve ID " A ", " C ", " M " valve 100 valve signature test namely terminate to bellows valve
A, when the valve signature test of M, C, valve signature preparing department 3 is read in measured value data store 1 in the form of test data
The aperture measurement Value Data D1 and pressure measurement Value Data D2 (step S205) of bellows valve A, M, C of storage.
Then, valve signature preparing department 3 is according to the aperture measurement Value Data D1 and pressure read from measured value data store 1
Power measures Value Data D2, makes required to operation when the direction change for making the aperture θ of bellows valve (A, M, C) go down towards increase
The relationship (aperture-pressure change characteristic I that court shown in Fig. 9 goes to direction) of the aperture θ of the Fluid pressure Po and bellows valve of device
And make the aperture θ of bellows valve towards required Fluid pressure Po and bellows to operator when reducing the direction change gone down
The relationship (aperture-pressure change characteristic II that direction is gone back to by court shown in Fig. 9) of the aperture θ of valve is used as valve signature VS (I, II)
(step S206).
The valve signature VS (I, II) produced by valve signature preparing department 3 is sent to diagnosis index presentation portion 4.Diagnosis index
The examining as maintenance candidate valve (bellows valve) by the valve signature VS (I, II) from valve signature preparing department 3 of presentation portion 4
Namely as bellows is informed, whether there is or not the indexs of damaged query, and (display) is presented to operator (step S207) for severed finger mark.
In addition, valve signature preparing department 3, which will produce valve signature VS (I, II) this content, informs benchmark presentation portion
8.Benchmark presentation portion 8 receives this notice, will be (shown in Fig. 9 straight in the intermediate valuable average line in aperture side of bellows valve
Line L) as bellows valve diagnosis index VS (I, II) benchmark present (display) out (step S208).
In this embodiment, the least square straight line that reciprocal data are sought using the data of aperture 10~90%, this is found out
Least square straight line is set as straight line L (benchmark), is shown together with the diagnosis index VS (I, II) of bellows valve.Hereinafter, will
Straight line L is known as least square straight line L.
Fig. 9 illustrates the valve signature VS (I, II) under the normal condition of bellows valve.Breakage does not occur in bellows
In the case of, making the power of bellows deformation is not in variation.Therefore, come visually as that can utilize with the difference of least square straight line L
Like that, the VS (I, II) of valve signature does not both generate the characteristic variations for being biased to constricted zone (high opening amount region) for confirmation, does not also produce
The raw characteristic variations for being biased to stretch zones (low opening amount region).Operator may infer that bellows without damaged query as a result,.Again
10% or less aperture is considered as stretch zones (low opening amount region), 90% or more aperture is considered as constricted zone by person in this embodiment
(high opening amount region).
Figure 10 illustrates bellows and the valve signature VS (I, II) in the case where breakage has occurred.Breakage has occurred in bellows
In the case where, so that the power of bellows deformation is will appear variation.Especially in stretch zones (low opening amount region), keep ripple tubular
The power of change will appear variation.Therefore, as can utilize and carry out visual confirmation with the difference of least square straight line L, valve signature
VS (I, II) generates the characteristic variations for being only biased to stretch zones (low opening amount region).That is, in stretch zones (low opening amount region),
Biggish difference is generated between the difference and characteristic II and the difference of least square straight line L of characteristic I and least square straight line L.It operates as a result,
Member may infer that bellows has damaged query.
Figure 11 indicates the display example of the diagnosis index VS of bellows valve.In this embodiment, as indicate diagnosis index with #1 is in
Existing region is such, and the valve signature VS produced by valve signature preparing department 3 is associated with to as the ripple for safeguarding candidate valve
Pipe valve A, C, M be namely associated with to safeguard the ID " A " of candidate valve, " C ", " M " and with diagnosis index VSA、VSC、VSMForm
Display is over the display.
At this point, if as the presentation region that #2 indicates diagnosis object part, (display) diagnosis index is presented in Figure 11
Presentation region #1 in present (display) out diagnosis index VSA、VSC、VSMIt is the ripple to be installed in bellows valve A, C, M
The state of pipe is this content of object, then can the knowledge of the necessity of the maintenance to related shortage bellows in a quantitative manner behaviour
Work person shows the necessity of the concern to bellows, therefore can reduce the risk that the missing inspection of bellows occurs.
It the valve signature VS (diagnosis index VS) that is produced by valve signature preparing department 3 and is found out by benchmark presentation portion 8
Least square straight line L also send to determination unit 5.The upper limit value of the difference of diagnosis index VS and least square straight line L (benchmark) with
The form of diagnosis index threshold value Sth is stored in threshold value storage unit 6.
When sending diagnosis index VS from valve signature preparing department 3, determination unit 5 asks diagnosis index VS and least square straight
The difference S (step S209) of line L (benchmark).In this embodiment, at least in stretch zones (low opening amount region) and constricted zone, (height is opened
Degree region) in ask the absolute value of the difference of characteristic I and least square straight line L as the side characteristic I difference, ask characteristic II and least square
Difference of the absolute value of the difference of straight line L as the side characteristic II, it is (exhausted so as to find out the difference of the side characteristic I and the difference of the difference of the side characteristic II
To value) it is used as difference S.It, can also be on multiple aperture positions furthermore difference S can be the difference on 1 aperture position of representative
The average value etc. of the difference found out.
Then, determination unit 5 reads the diagnosis index threshold value Sth (step S210) stored in threshold value storage unit 6, to according to next
The difference S found out from the diagnosis index VS of valve signature preparing department 3 is compared (step S211) with diagnosis index threshold value Sth.
It in this case, will be according to the diagnosis index VS from valve signature preparing department 3A、VSC、VSMEach difference S found outA、SC、SMWith
Diagnosis index threshold value Sth is compared.
Herein, only (low in stretch zones in the difference S found out according to the diagnosis index VS from valve signature preparing department 3
Opening amount region) in for (step S211's be) in the case where diagnosis index threshold value Sth or more, determination unit 5 is by the valve (bellows
Valve) it is determined as being the valve (step S212) for needing to safeguard.For example, in difference SA、SC、SMIn difference SMOnly in stretch zones
In the case where being diagnosis index threshold value Sth or more in (low opening amount region), bellows valve M is determined as it being the valve for needing to safeguard
Door.Determination unit 5 send the judgement result to judgement result presentation portion 7.
Determine that the judgement result from determination unit 5 is presented to operator (step S213) by result presentation portion 7.For example,
In the case where being judged as the valve for needing to safeguard as the bellows valve M in bellows valve A, C, the M for safeguarding candidate valve,
It is aobvious with red as the valve for having bellows that damaged query has occurred in the presentation region #1 of diagnosis index shown in Figure 11
Show the valve ID and diagnosis index VS (such as outline border around the display area of diagnosis index VS) of bellows valve M.In the situation
Under, with the valve ID of black display bellows valve A, C.At this point, when can also show judgement in the presentation region #1 of diagnosis index
Used diagnosis index threshold value Sth.
Furthermore in this embodiment, be the diagnosis index that will safeguard candidate valve (bellows valve A, C, M), whether be
The judgement for the valve for needing to safeguard as the result is shown over the display, but can also be used printer etc. and type it out, and voice can also be used
To inform.
In addition, being only for the candidate valve (bellows valve of maintenance in valve signature preparing department 3 in this embodiment
A, C, M) make diagnosis index VS, but diagnosis index VS can also be made for all measurement object valves (valve A~Z).
In this case, in diagnosis index presentation portion 4, the valve ID of all measurement object valves and diagnosis index VS is added
With association, for example, safeguarding that candidate valve is not that the candidate valve of maintenance indicates that judgement needs to safeguard with black with blue display
Valve with red indicates, in such a manner distinguish show each side.
In addition, diagnosis index threshold value Sth depends on the breakage of which degree being considered as problem, according to the breakage because of bellows
And tradeoff of danger level and maintenance cost generated etc. is next at discretion.
In addition, being to show least square straight line L as the diagnosis index VS for being directed to bellows valve in this embodiment
The benchmark of (I, II) still, such as can also link under the median and 80% aperture of the characteristic I and characteristic II under 20% aperture
The median of characteristic I and characteristic II, thus show median under 20% aperture of connection and the median under 80% aperture and
The line obtained is as benchmark etc..
In addition, the benchmark for the diagnosis index VS (I, II) of bellows valve is not necessarily as least square straight line
Straight line, for example, can also be presented the valve signature VS (I, II) under the normal condition of bellows valve as benchmark.For example,
Can also as shown in Figure 12 in same picture G by the diagnosis index VS (I, II) produced as current state, side by side
Valve signature VS (I, II) under column display normal condition (usually original state), can also be overlapped display.
In addition, can also be in as simplified index presentation portion 9 is arranged as shown in Figure 13 instead of diagnosis index presentation portion 4 and benchmark
Existing portion 8, the representation position of the high opening amount region (constricted zone) of (display) valve signature VS (I, II) is presented, and (such as 80% open
Degree) on the representative with the low opening amount region (stretch zones) of the difference S and valve signature VS (I, II) of least square straight line L
On position (such as 20% aperture) with the difference S of least square straight line L as simplified diagnosis index.
In addition, in this embodiment, in the case where the production instruction for having diagnosis index, can to safeguard candidate valve into
The test of row valve signature, but valve signature test is not necessarily carried out, the dimension stored in measured value data store 1 can also be used
The aperture measurement Value Data D1 and pressure measurement Value Data D2 of candidate valve are protected to make valve signature VS (I, II).For example,
Valve can not be made using the aperture measurement Value Data D1 and pressure measurement Value Data D2 that store in measured value data store 1
In the case where feature VS (I, II), valve signature test is carried out to the candidate valve of maintenance.
(embodiment 2)
Then, the valve maintenance assisting system of embodiments of the present invention 2 is illustrated.Embodiment 2 is to embodiment 1
Actual load example be illustrated.Figure 14 is the figure for indicating the composition of factory and its equipment management system, is marked to composition same as figure 7
It is marked with same symbol.
In petroleum, chemical plant, it is provided with the equipment management system 15 for being controlled each equipment of the factory, being managed.
About illustrated in embodiment 1 measured value data store 1, valve ID storage unit 2, valve signature preparing department 3, determination unit
5, threshold value storage unit 6, due to the bulk information for wanting processing plant intrinsic, preferred actual load is in 15 side of equipment management system.
On the other hand, diagnosis index presentation portion 4, judgement result presentation portion 7, benchmark presentation portion 8 provide valve in principle
Processing especially required when maintenance judges.In addition, the maintenance implementer operation responsible person of enterprise (maintenance be commissioned) is usually from work
Owner enterprise, factory accepts commission and implements the maintenance of factory.Accordingly, it is contemplated that using not specific a large amount of factories as this feelings of object
Condition, to it is preferred that refer to safeguarding that actual load in portable computer 16 entrained by the operation responsible person (operator) of enterprise of being commissioned diagnoses
It marks presentation portion 4 and determines result presentation portion 7.
Computer 16 has CPU (Central Processing Unit), memory and interface.The equipment management system of factory
System 15 is temporarily connected in putting maintenance into practice operation using the communication function of Ethernet (registered trademark) etc. with computer 16.
When operator starts the application software on computer 16, the CPU of computer 16 comes according to the program stored in memory
Processing is executed, the production for sending diagnosis index to equipment management system 15 indicates, makes the maintenance of 15 pairs of equipment management system registrations
The judgement whether what candidate valve (bellows valve) carried out the diagnosis index production (production of valve signature) and need to safeguard.
The diagnosis index of the maintenance candidate valve (bellows valve) produced by the equipment management system 15 and whether need to safeguard
Determine as the result is shown on the display of computer 16.
Furthermore it is in this embodiment, registered in equipment management system 15 to have a candidate valve (bellows valve) of maintenance, but can also be with
Registration, the change of maintenance candidate valve (bellows valve) are carried out using computer 16 by operator.
The diagnosis index for the maintenance candidate valve (bellows valve) that operator shows on the display according to computer 16 and
The judgement result for whether needing to safeguard confirms the valve that should especially notice in the maintenance of bellows (bellows valve).Confirmation
Afterwards, operator releases the connection of computer 16 and equipment management system 15.
In this way, the valve maintenance assisting system 200 illustrated in embodiment 1 can be applied to actual factory.
(extension of embodiment)
More than, the present invention is described for reference implementation mode, but the present invention is not limited to above embodiment.It can be
In the range of technical idea of the invention to composition of the invention, details carry out skilled artisans appreciate that various changes
More.
Symbol description
1 measured value data store
2 valve ID storage units
3 valve signature preparing department
4 diagnosis index presentation portions
5 determination units
6 threshold value storage units
7 determine result presentation portion
8 benchmark presentation portions
9 simplify index presentation portion
21 aperture measurement portions
22 pressure measurement portions
100 (100-1~100-N) valves
101 valve bodies
102 locators
103 operators
104 valve shafts
105 spools
108 bellowss
VB bellows valve
200 valve maintenance assisting systems.
Claims (8)
1. a kind of valve maintenance assisting system, props up the upkeep operation for the bellows valve for having undulatory bellows
It helps, the bellows is arranged in a manner of surrounding the periphery with the combined valve shaft of spool, the valve maintenance assisting system
It is characterized in that having:
Measured value data store stores aperture measurement Value Data and pressure measurement Value Data, the aperture measurement value number
It is sent according to from the aperture measurement portion for the aperture for measuring the bellows valve, the pressure measurement Value Data is from pressure measurement portion
It sends, the Fluid pressure of pressure measurement portion measurement supply to the operator for driving the bellows valve；
Valve signature preparing department, according to the aperture measurement Value Data that is stored in the measured value data store and described
Pressure measurement Value Data makes required to the operation when direction change for making the aperture of the bellows valve go down towards increase
The relationship of the aperture of the Fluid pressure of device and the bellows valve and the side for making the aperture of the bellows valve go down towards reduction
To the relationship of the required Fluid pressure to operator when variation and the aperture of the bellows valve, as valve spy
Sign；And
The valve signature produced by the valve signature preparing department is presented as the bellows valve in diagnosis index presentation portion
Diagnosis index.
2. valve maintenance assisting system according to claim 1, which is characterized in that
Has benchmark presentation portion, the work of the valve signature under the normal condition of the bellows valve is presented in benchmark presentation portion
For the benchmark of the diagnosis index for the bellows valve.
3. valve maintenance assisting system according to claim 1, which is characterized in that
Has benchmark presentation portion, there is the average line of weight in the intermediate aperture side that benchmark presentation portion is presented on the bellows valve
Benchmark as the diagnosis index for the bellows valve.
4. valve maintenance assisting system according to claim 2 or 3, which is characterized in that have:
Threshold value storage unit, the diagnosis index for storing the bellows valve and the upper limit value of the difference of the benchmark refer to as diagnosis
Mark threshold value；
Determination unit, in the diagnosis index of the bellows valve and the difference of the benchmark only in the stretch zones of the bellows
It is interior be more than the diagnosis index threshold value in the case where, which is determined as it being to need the valve safeguarded；And
Determine result presentation portion, the bellows valve for being judged to needing to safeguard by the determination unit is presented.
5. valve maintenance assisting system according to any one of claims 1 to 4, which is characterized in that
Diagnosis index presentation portion by the diagnosis index be using the state for the bellows installed in the bellows valve as object this
One content and the diagnosis index of the bellows valve are presented together.
6. valve maintenance assisting system according to any one of claims 1 to 5, which is characterized in that
Has valve identification information storage, the valve identification information storage storage is registered as safeguarding the ripple of candidate valve
The identification information of pipe valve,
The measured value data store using will including it is described safeguard candidate valve including multiple valves as measurement object, simultaneously
The mode being associated for this each measurement object valve with the identification information of the valve, stores the aperture measurement value number
According to and the pressure measurement Value Data,
The valve signature preparing department reads the knowledge of the maintenance candidate valve stored in the valve identification information storage
Other information, be associated with according to the identification information with the reading and the aperture measurement that is stored in the measured value data store
Value Data and the pressure measurement Value Data make the valve signature for the candidate valve of each maintenance.
7. valve maintenance assisting system according to claim 2 or 3, which is characterized in that
Have simplified index presentation portion and replace diagnosis index presentation portion and benchmark presentation portion,
On the representation position for the high opening amount region that the valve signature is presented in the simplified index presentation portion with the benchmark
Being examined with the difference of the benchmark as simplified on the representation position of the low opening amount region of difference and the valve signature
Severed finger mark.
8. a kind of valve maintenance support method, props up the upkeep operation for the bellows valve for having undulatory bellows
It helps, the bellows is arranged in a manner of surrounding the periphery with the combined valve shaft of spool, the valve maintenance support method
It is characterized in that having:
Measured value data storing steps store aperture measurement Value Data and pressure measurement Value Data to measurement Value Data storage
Portion, the aperture measurement Value Data are sent from the aperture measurement portion for the aperture for measuring the bellows valve, and the pressure is surveyed
Magnitude data is sent from pressure measurement portion, pressure measurement portion measurement supply to the operator for driving the bellows valve
Fluid pressure；
Valve signature making step, according to the aperture measurement Value Data that is stored in the measured value data store and described
Pressure measurement Value Data makes required to the operation when direction change for making the aperture of the bellows valve go down towards increase
The relationship of the aperture of the Fluid pressure of device and the bellows valve and the side for making the aperture of the bellows valve go down towards reduction
To the relationship of the required Fluid pressure to operator when variation and the aperture of the bellows valve, as valve spy
Sign；And
Diagnosis index rendering step is presented by valve signature that the valve signature making step is produced as the ripple
The diagnosis index of pipe valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-214511 | 2017-11-07 | ||
| JP2017214511A JP7000123B2 (en) | 2017-11-07 | 2017-11-07 | Valve maintenance support device, valve maintenance support method, and program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109752178A true CN109752178A (en) | 2019-05-14 |
| CN109752178B CN109752178B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811312880.0A Active CN109752178B (en) | 2017-11-07 | 2018-11-06 | Valve maintenance support device and method |
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| Country | Link |
|---|---|
| JP (1) | JP7000123B2 (en) |
| KR (1) | KR102161730B1 (en) |
| CN (1) | CN109752178B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325824A (en) * | 2021-06-02 | 2021-08-31 | 三门核电有限公司 | Regulating valve abnormity identification method and system based on threshold monitoring |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102161730B1 (en) | 2020-10-05 |
| KR20190051845A (en) | 2019-05-15 |
| JP2019086082A (en) | 2019-06-06 |
| CN109752178B (en) | 2020-12-25 |
| JP7000123B2 (en) | 2022-01-19 |
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