CN109752179A - Valve maintenance assisting system and method - Google Patents
Valve maintenance assisting system and method Download PDFInfo
- Publication number
- CN109752179A CN109752179A CN201811312881.5A CN201811312881A CN109752179A CN 109752179 A CN109752179 A CN 109752179A CN 201811312881 A CN201811312881 A CN 201811312881A CN 109752179 A CN109752179 A CN 109752179A
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- Prior art keywords
- valve
- bellows
- value data
- diagnosis index
- aperture
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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)
- Testing And Monitoring For Control Systems (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The present invention provides a kind of valve maintenance assisting system and method, improves the efficiency of the upkeep operation of valve the case where especially for processing bellows valve.In the present invention, it will safeguard that candidate valve is set as bellows valve A, C, M (S201).According to the aperture measurement Value Data (D1) and pressure measurement Value Data (D2) of bellows valve A, C, M, diagnosis index F of the information relevant to the maximal friction of bellows valve A, C, M as the bellows valve is calculated, whether there is or not the indexs of fracture query to be presented to operator (S203~S206) as bellows is informed.In the case where the diagnosis index F of calculating is diagnosis index threshold value situation below, by the valve (valve that bellows produces fracture query) that the bellows valve is judged to needing to safeguard, and it is presented to operator (S208~S210).
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 12 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 the bellows valve VB as shown in Figure 12.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, the ripple shown in Figure 12
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
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 the purpose, valve maintenance assisting system (200) of the invention is to having undulatory bellows (108)
The upkeep operation of bellows valve (VB) supported, the bellows is to surround and spool (105) combined valve shaft
(104) mode of periphery is arranged, which has: measured value data store (1), and storage aperture is surveyed
Magnitude data (D1) and pressure measurement Value Data (D2), aperture of the aperture measurement Value Data from the measurement bellows valve
Aperture measurement portion (21) send, the pressure measurement Value Data from pressure measurement portion (22) send, the pressure survey
The measurement of amount portion is supplied to the Fluid pressure (Po) for the operator (103) for driving the bellows valve；Diagnosis index calculation section (3),
It is calculated according to the aperture measurement Value Data and the pressure measurement Value Data stored in the measured value data store
Diagnosis index (F) of the information relevant to the maximal friction of the bellows valve as the bellows valve；Diagnosis index is in
The diagnosis index of the bellows valve calculated by the diagnosis index calculation section is presented in existing portion (4).
In the present invention, the aperture measurement Value Data from aperture measurement portion is stored in measured value data store and come
Pressure measurement Value Data from pressure measurement portion.Diagnosis index calculation section is according to the institute stored in the measured value data store
Aperture measurement Value Data and the pressure measurement Value Data are stated, information relevant to the maximal friction of the bellows valve is calculated
Diagnosis index as the bellows valve.
It is generated in bellows valve, on bellows when the fracture such as being partly slit open (on bellows when aperture), keeps ripple tubular
The power of change is reduced.The maximal friction for making the reduction of the power of bellows deformation show as bellows valve (generates between valve shaft
Maximal friction) reduction, the diagnosis index of the bellows valve of calculating becomes smaller.The diagnosis index of the bellows valve of the calculating is made
To inform bellows, whether there is or not the indexs of fracture query to be presented to operator.
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, it is made according to aperture measurement Value Data and pressure measurement Value Data and wave
Diagnosis index of the relevant information of the maximal friction of line pipe valve as bellows valve, the diagnosis of the calculated bellows valve refer to
Be denoted as inform bellows whether there is or not fracture query index be presented to operator, especially for processing bellows valve feelings
Condition can improve the efficiency of the upkeep operation of valve.
Detailed description of the invention
Fig. 1 is to schematically show that there is no before the compression of the bellows in the case where fracture and compressing compressed shape
The figure of state.
Fig. 2 is before schematically showing the compression of the bellows in the case where fracture has occurred and to compress compressed state
Figure.
Fig. 3 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. 4 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. 5 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. 6 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. 7 is the flow chart to illustrate the movement of the valve maintenance assisting system.
Fig. 8 is the concept map for indicating an example of valve configuration of maintenance object factory.
Fig. 9 is the figure for indicating the variation of maximal friction of the valve (bellows valve) passed through along with the time.
Figure 10 is to indicate to safeguard that the diagnosis index of candidate valve (bellows valve) shows exemplary figure.
Figure 11 illustrates the factory of embodiments of the present invention 2 and its composition (the actual load example of embodiment 1) of equipment management system
Figure.
Figure 12 indicates the figure of an example of control valve (bellows valve).
Specific embodiment
(principle of invention)
Inventor notices following situation: using the bellows valve of bellows (bellows seal), ripple
It is generated on pipe when the fracture such as being partly slit open (on bellows when aperture), reduces the power of bellows deformation.
That is, relative to power required for the bellows entirety deformation of normal bellows is made, it is right in the case where producing fracture
The power for making its appropriate flexible deformation is not needed for breaking part, reduces power overall required for bellows deformation.For example,
In the case where bellows deformation as compressed spring, do not need to make its flexible deformation in the opening portion generated by fracture
Power.
Fig. 1 is to schematically show that there is no before the compression of the bellows in the case where fracture and compressing compressed shape
The figure of state.(a) of Fig. 1 indicates the state of the bellows before compression, and (b) of Fig. 1 indicates the state of compressed bellows.Ripple
There is no requiring the power of flexible deformation in all bending places in the case where fracture for pipe.
Fig. 2 is before schematically showing the compression of the bellows in the case where fracture has occurred and to compress compressed state
Figure.When bellows is broken, (opening portion) does not need the power for making its flexible deformation at fracture (separation), makes ripple
The power of tubular change is reduced.
If it is considered that the installation condition of bellows, this makes the reduction of the power of bellows deformation show as the maximum of bellows valve
The reduction of frictional force (maximal friction generated between valve shaft).Inventor expects: by by the maximum with the bellows valve
The relevant information of frictional force is presented to operator as the diagnosis index of bellows valve, and capable of estimating bellows, whether there is or not fractures to doubt
It asks.As a result, especially for processing bellows valve the case where, the efficiency of the upkeep operation of valve can be improved.
(embodiment 1)
In the following, with reference to the accompanying drawings, detailed description of embodiments of the present invention.The valve of Fig. 3 expression embodiments of the present invention 1
The block diagram of the composition of the mian part of door maintenance and support device.Herein, to simplify the explanation, the example etc. of the ID (identification information) of valve
It is 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, examine
Severed finger mark calculation section 3, diagnosis index presentation portion 4, determination unit 5, threshold value storage unit 6 and judgement result presentation portion 7.
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 being represented in Fig. 4 its flow chart, 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. 5
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. 6 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 12) 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. 7 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 12, 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. 8 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. 8 are flow measuring probe, and 13 be groove tank, and 14 be pressure transmitter.Furthermore in Fig. 8,
Record is omitted in valve other than valve ID " A ", " C ", " M ".
When the calculating instruction for having diagnosis index (step S202's be), diagnosis index calculation section 3 reads valve ID storage
ID " A ", " C ", " M " (the step S203) of the candidate valve of maintenance stored in portion 2, and with the valve ID " A " of the reading, " C ",
" M " accordingly reads and is stored in aperture measurement Value Data D1 and pressure measurement Value Data D2 (step in measured value data store 1
S204)。
Then, based on the aperture measurement Value Data D1 and pressure measurement Value Data D2 read from measured value data store 1,
Diagnosis index calculation section 3 calculates maximal friction (maximal friction generated between valve shaft) phase with bellows valve A, C, M
Diagnosis index F (F of the information of pass as bellows valve A, C, MA、FC、FM) (step S205).
Fig. 9 shows the variation of the maximal friction of the bellows valve passed through along with the time.Diagnosis index calculation section 3 is asked
Out under same aperture, so that the aperture of line pipe valve the required air pressure Po supplied to operator and is made bellows valve when becoming larger
The pressure difference of the required air pressure Po supplied to operator is as information relevant to maximal friction when aperture becomes smaller, by this with
Diagnosis index F of the relevant information of maximal friction as bellows valve.For example, will be used as in 24 hours before this diagnosis object phase
Between, information relevant to the maximal friction during the diagnosis object is found out as letter relevant with present maximal friction
Breath, using the information relevant to present maximal friction as the diagnosis index F of bellows valve.
Diagnosis index F (the F calculated by diagnosis index calculation section 3A、FC、FM) it is sent to diagnosis index presentation portion 4.Diagnosis
The diagnosis index F of index presentation portion self diagnosis index in 4 future calculation section 3 refers to as the diagnosis for safeguarding candidate valve (bellows valve)
Whether there is or not the indexs of fracture query to be presented to operator (step S206) for mark, i.e. informing bellows.
For example, as the presentation region of diagnosis index is indicated in Figure 10 in #1, with the ripple as the candidate valve of maintenance
Pipe valve A, C, M accordingly, i.e. accordingly calculate diagnosis index calculation section 3 with ID " A ", " C ", " M " of candidate valve is safeguarded
Diagnosis index FA、FC、FMNumerical value show over the display.
At this point, if as the presentation region that #2 indicates diagnosis object part, (display) diagnosis index is presented in Figure 10
Presentation region #1 in present (display) out diagnosis index FA、FC、FMIt is the bellows to be installed in bellows valve A, C, M
State be this content of object, then can in a quantitative manner to lack the maintenance in relation to bellows necessity knowledge operation
Member shows the necessity of the concern to bellows, therefore can reduce the risk that the missing inspection of bellows occurs.
Diagnosis index F (the F calculated by diagnosis index calculation section 3A、FC、FM) also it is sent to determination unit 5.For diagnosis index
The lower limit value of the normal range (NR) of F is stored in threshold value storage unit 6 as diagnosis index threshold value Fth.
When sending diagnosis index F from diagnosis index calculation section 3, determination unit 5 reads the diagnosis stored in threshold value storage unit 6
Metrics-thresholds Fth (step S207) compares the diagnosis index F and diagnosis index threshold value Fth from diagnosis index calculation section 3
Compared with (step S208).In this case, the diagnosis index F for index calculation section 3 of autotomying in the futureA、FC、FMRespectively with diagnosis index threshold
Value Fth is compared.
Herein, it (is walked in diagnosis index threshold value Fth situation below in the diagnosis index F from diagnosis index calculation section 3
Suddenly S208's is), the valve (step S209) which is judged to needing to safeguard by determination unit 5.For example, diagnosis
Index FA、FC、FMIn diagnosis index FMIn diagnosis index threshold value Fth situation below, bellows valve M is judged to needing
The valve of maintenance.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 S210) 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,
In the presentation region #1 of diagnosis index shown in Fig. 10, as the valve for thering is bellows to be broken, with red display ripple
The valve ID and diagnosis index F of pipe valve MM.In this case, with the valve ID and diagnosis index of black display bellows valve A, C
FA、FC.At this point, used diagnosis index threshold value Fth when judgement can also be shown in the presentation region #1 of diagnosis index.
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 diagnosis index calculation section 3 in this embodiment
A, C, M) calculate diagnosis index F, but diagnosis index F can also be calculated for all measurement object valves (valve A~Z).
In this case, the valve ID of all measurement object valves and diagnosis index F is subject in diagnosis index presentation portion 4
Association, for example, safeguarding that candidate valve with blue display, is not that the candidate valve of maintenance is indicated with black, determines what needs were safeguarded
Valve is indicated with red, distinguishes display each side in such a manner.
In addition, diagnosis index threshold value Fth depends on the fracture of which degree being considered as problem, according to the fracture because of bellows
And tradeoff of danger level and maintenance cost generated etc. is next at discretion.Being also based on hypothesis, there is no the pendulum of fracture
The frictional force apart from aggregate-value hour (original state) is moved to determine diagnosis index threshold value Fth.
(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 11 is the figure for indicating the composition of factory and its equipment management system, is marked to composition identical with Fig. 8
It is marked with same symbol.
In petroleum, chemical plant, it is provided with the equipment management system 8 for being controlled each equipment of the factory, being managed.It closes
The measured value data store 1 that illustrated in embodiment 1, valve ID storage unit 2, diagnosis index calculation section 3, determination unit 5,
Threshold value storage unit 6, due to the bulk information for wanting processing plant intrinsic, preferred actual load is in 8 side of equipment management system.
On the other hand, diagnosis index presentation portion 4, to determine that result presentation portion 7 provides in principle outstanding when the maintenance of valve judges
For required processing.In addition, the maintenance implementer operation responsible person of enterprise (maintenance be commissioned) is usually from plant owner enterprise
Accept commission and implement the maintenance of factory.Accordingly, it is contemplated that be object this case using not specific a large amount of factories, thus it is preferred that
Maintenance, which is commissioned in portable computer 9 entrained by the operation responsible person (operator) of enterprise, actual load diagnosis index presentation portion 4 and to be sentenced
Determine result presentation portion 7.
Computer 9 has CPU (Central Processing Unit), memory and interface.The equipment management system of factory
8 are temporarily connected in putting maintenance into practice operation using the communication function of Ethernet (registered trademark) etc. with computer 9.
When operator starts the application software on computer 9, the CPU of computer 9 is held according to the program stored in memory
Row processing, the calculating for sending diagnosis index to equipment management system 8 indicate, keep the maintenance of 8 pairs of equipment management system registrations candidate
The judgement whether valve (bellows valve) carries out the calculating of the diagnosis index and need to safeguard.It is calculated by the equipment management system 8
The diagnosis index of maintenance candidate valve (bellows valve) out and the judgement for whether needing to safeguard are as the result is shown in the aobvious of computer 9
Show on device.
Furthermore it is in this embodiment, registered in equipment management system 8 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 9 by operator.
The diagnosis index for the maintenance candidate valve (bellows valve) that operator shows on the display according to computer 9 and it is
It is no that the judgement result safeguarded is needed to confirm the valve that should especially notice in the maintenance of bellows (bellows valve).Confirmation
Afterwards, operator releases the connection of computer 9 and equipment management system 8.
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 diagnosis index calculation sections, 4 diagnosis index presentation portions, 5 determine
Portion, 6 threshold value storage units, 7 determine result presentation portion, 21 aperture measurement portions, 22 pressure measurement portions, 100 (100-1~100-N) valves
Door, 101 valve bodies, 102 locators, 103 operators, 104 valve shafts, 105 spools, 108 bellowss, VB bellows valve, 200 valves
Door maintenance and support device.
Claims (9)
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；
Diagnosis index calculation section, according to the aperture measurement Value Data that is stored in the measured value data store and described
Pressure measurement Value Data calculates diagnosis of the information relevant to the maximal friction of the bellows valve as the bellows valve
Index；And
The diagnosis index of the bellows valve calculated by the diagnosis index calculation section is presented in diagnosis index presentation portion.
2. valve maintenance assisting system according to claim 1, which is characterized in that have:
Threshold value storage unit, storage are directed to the lower limit value of the normal range (NR) of the diagnosis index as diagnosis index threshold value；
Determination unit, the bellows valve calculated by the diagnosis index calculation section diagnosis index in the diagnosis index threshold
It is worth in situation below, the determination unit determines the bellows valve 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.
3. valve maintenance assisting system according to claim 1 or 2, which is characterized in that
The diagnosis index calculation section by under same aperture, when the aperture of the bellows valve being made to become larger it is required to the behaviour
Make device supply Fluid pressure and make the aperture of the bellows valve when becoming smaller it is required to the operator supply fluid pressure
The pressure difference of power, as information relevant to the maximal friction of the bellows valve, to calculate the diagnosis of the bellows valve
Index.
4. valve maintenance assisting system according to claim 1 or 2, 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.
5. valve maintenance assisting system according to claim 3, 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 claim 1 or 2, 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 diagnosis index calculation section 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 calculate the diagnosis index for the candidate valve of each maintenance.
7. valve maintenance assisting system according to claim 3, 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 diagnosis index calculation section 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 calculate the diagnosis index for the candidate valve of each maintenance.
8. valve maintenance assisting system according to claim 4, 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 diagnosis index calculation section 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 calculate the diagnosis index for the candidate valve of each maintenance.
9. 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, 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；
Diagnosis index calculates step, according to the aperture measurement Value Data stored in the measured value data store and institute
Pressure measurement Value Data is stated, information examining as the bellows valve relevant to the maximal friction of the bellows valve is calculated
Severed finger mark；And
Diagnosis index rendering step presents and is referred to by the diagnosis that the diagnosis index calculates the bellows valve that step calculates
Mark.
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| JP2017214513A JP7000125B2 (en) | 2017-11-07 | 2017-11-07 | Valve maintenance support device and method |
| JP2017-214513 | 2017-11-07 |
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| Publication number | Publication date |
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| KR20190051872A (en) | 2019-05-15 |
| JP7000125B2 (en) | 2022-01-19 |
| KR102331824B1 (en) | 2021-11-30 |
| JP2019087003A (en) | 2019-06-06 |
| CN109752179B (en) | 2021-04-23 |
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