CN106499857A - Electric valve executing mechanism opens force moment protection modification method and system - Google Patents
Electric valve executing mechanism opens force moment protection modification method and system Download PDFInfo
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- CN106499857A CN106499857A CN201611203969.4A CN201611203969A CN106499857A CN 106499857 A CN106499857 A CN 106499857A CN 201611203969 A CN201611203969 A CN 201611203969A CN 106499857 A CN106499857 A CN 106499857A
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- valve
- executing mechanism
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- bypass
- electric valve
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
A kind of electric valve executing mechanism opens force moment protection modification method and system, including：Increase valve opening bypass at the two ends of electric valve executing mechanism protection act device；Proportionate relationship according to the corresponding number of turns between the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft；Whole duration of valve opening according to the proportionate relationship and the electric valve executing mechanism determines the valve opening bypass time relational expression；According to the valve opening bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value；System includes device (A, B, C, D, E, F)；Implement the present invention, solve the protection problem due to opening the circuit arrangement that bypass brings, improve the debugging efficiency of electric operator, improve the unlatching performance of valve, reduce the infringement for bypass being opened to upstream and downstream protection equipment, with extensive promotional value.
Description
Technical field
The present invention relates to electric valve executing mechanism resist technology field, more particularly, it relates to a kind of electric valve is held
Row mechanism opens force moment protection modification method and system.
Background technology
During the daily Power operation of Yangjiang Nuclear Power factory, repeatedly occur nuclear island poplar repair electric operator cannot normally-open valve
Door, check find electric operator open force moment protection triggering, manually opened once after, valve switch function is recovered normally again,
Initial analysis valve opening moment causes triggering electric operator to open force moment protection as stiction is excessive.
The unit of Yangjiang 3 from debugging to business fortune after poplar repair electric operator opening force square Trigger Problems feedback as follows：
During on November 19th, 2015, No. 3 unit regulations, Y3RRI170VN electric operator opening force squares protection mechanism is moved
Make valve to open.
On 04 09th, 2016, during No. 3 unit day-to-day operations, executing Y3RRI313VN when T3RPB025 is tested cannot open
Open.
On 06 04th, 2016, during No. 3 unit day-to-day operations, executing Y3RRI304VN when T3RPA025 is tested cannot open
Open.
Want normally Open valve, it is necessary to consider the valve opening frictional force problem of valve opening moment, according to feedback, exploitation
Even if after moment valve element is completely disengaged, it is possible to force moment protection is opened in triggering, illustrate that valve opening frictional force has very big not knowing
Property, therefore, after Open valve and Open valve to the impact that whole control circuit upstream and downstream controls protection to be how normally
The application key problems-solving.
From in terms of onsite application situation, poplar repair electric operator in closed positions valve opening opening force square triggering problem compared with
Many, therefore on the premise of equipment safety is ensured, it is necessary to the setting of fully closed position electric operator opening force square bypass under analysis
The reasonability of value.
Content of the invention
For raising the circuit protection of repairing that electric operator cannot be triggered after normally-open valve and normally-open valve
Problem, repaiies the adaptive setting analysis that electric operator opens force moment protection bypass by the domestic 1E levels K3 class poplar to valve, carries
Go out a kind of electric valve executing mechanism and open force moment protection modification method and system, other by increasing at the spacing two ends of opening force square
Road, in such cases, even if the spacing disconnection of opening force square, the control loop of valve is still turned on, and realizes the normally-open of valve, then
The adaptive setting analysis that electric operator opens force moment protection bypass is repaiied by the domestic 1E levels K3 class poplar to valve, bypass is obtained
The reasonable set value of time, solves the protection problem due to opening the circuit arrangement that bypass brings, improves electronic execution machine
The debugging efficiency of structure, improves the unlatching performance of valve, reduces the infringement for opening bypass to upstream and downstream protection equipment, with wide
General promotional value.
On the one hand, propose a kind of electric valve executing mechanism and open force moment protection modification method, including：
Increase valve opening bypass at the two ends of electric valve executing mechanism protection act device；
According to the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft it
Between the corresponding number of turns proportionate relationship；
Whole duration of valve opening according to the proportionate relationship and the electric valve executing mechanism determines that the valve is opened
Open bypass time relational expression：
When being bypassed according to the valve opening bypass time relational expression and the electric valve executing mechanism parameter determination
Between be worth.
Force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, by the valve opening
Road includes the by-pass switch movement device for shut-off bypass.
Force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, described according to the valve
The ratio of the adjustment number of turns between door electric operator parameter determination by-pass switch movement device adjustment axis and valve output shaft
Relation, including：
Axis helical teeth number, the stroke shaft number of teeth, by-pass switch are exported according to the electric valve executing mechanism parameter determination valve
The movement device adjustment axis number of teeth and the trip count number of teeth；
The by-pass switch movement device adjustment axis number of teeth and stroke according to the electric valve executing mechanism of different model
Count the number of teeth and determine by-pass switch movement device adjustment axis and the corresponding number of turns ratio of valve output shaft.
Force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, described according to the ratio
The whole duration of valve opening of example relation and the electric valve executing mechanism determines the valve opening bypass time relational expression：
Including：
The valve output shaft number of turns according to the parameter acquiring of the electric operator；
Rotating speed according to the valve output shaft number of turns and the electric operator determines that the valve is whole and opens
Time.
Force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, is opened according to the valve
Bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value is opened, including：
Being determined according to the stroke of the valve needs out the open range of bypass；
Determined according to the open range and the valve opening bypass time relational expression and open bypass time value.
Force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, the electric valve is held
Row mechanism opens force moment protection modification method also to be included：
Upstream and downstream protection equipment according to the residing control circuit of the electric operator of the valve determines the valve
Opening time.
On the other hand, propose a kind of electric valve executing mechanism and open force moment protection update the system, including：
For increasing the device of valve opening bypass at the two ends of electric valve executing mechanism protection act device, being used for root
According to the correspondence ring between the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The device of several proportionate relationships, for according to the whole duration of valve opening of the proportionate relationship and the electric valve executing mechanism
Determine the valve opening bypass time relational expression：
Device and be used for according to the valve opening bypass time relational expression and described
The device of electric valve executing mechanism parameter determination bypass time value.
Force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, described for according to institute
State the corresponding number of turns between electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The device of proportionate relationship includes：
For exporting axis helical teeth number, the stroke shaft number of teeth, bypass according to the electric valve executing mechanism parameter determination valve
The device of the switch motion device adjustment axis number of teeth and the trip count number of teeth and for the valve electricity according to different model
The by-pass switch movement device adjustment axis number of teeth of dynamic executing agency and the trip count number of teeth determine that by-pass switch movement device is adjusted
Axle and the device of the corresponding number of turns ratio of valve output shaft.
Force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, described for described
The valve opening bypass time is determined according to the whole duration of valve opening of the proportionate relationship and the electric valve executing mechanism
Relational expression：
Device include：
For the device of the valve output shaft number of turns according to the parameter acquiring of the electric operator and for root
The valve whole process open-interval device is determined according to the rotating speed of the valve output shaft number of turns and the electric operator.
Force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, described for according to institute
The device for stating valve opening bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value includes
For determining the device of the open range for needing out bypass according to the stroke of the valve and being used for according to the open range
And the valve opening bypass time relational expression determines the device for opening bypass time value.
Force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, the electric valve is held
Row mechanism opens force moment protection update the system also to be included：
Described in being determined according to the upstream and downstream protection equipment of the residing control circuit of the electric operator of the valve
The device of valve opening time.
Implement a kind of electric valve executing mechanism in the present invention and open force moment protection modification method and system, by valve
Domestic 1E levels K3 class poplar repaiies the adaptive setting analysis that electric operator opens force moment protection bypass, proposes a kind of electric valve and executes
Mechanism opens force moment protection modification method and system, by increasing bypass at the spacing two ends of opening force square, in such cases, even if opening
The spacing disconnection of torque, the control loop of valve are still turned on, and realize the normally-open of valve, then by the domestic 1E levels to valve
K3 class poplars repair the adaptive setting analysis that electric operator opens force moment protection bypass, obtain the reasonable set value of bypass time, solution
The protection problem that has determined due to opening the circuit arrangement that bypass brings, improves the debugging efficiency of electric operator, improves
The unlatching performance of valve, with extensive promotional value.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is that a kind of electric valve executing mechanism of the invention opens force moment protection modification method embodiment flow chart；
Fig. 2 is the sub-step flow process that a kind of electric valve executing mechanism of the invention opens step S2 in force moment protection modification method
Schematic diagram；
Fig. 3 is the sub-step flow process that a kind of electric valve executing mechanism of the invention opens step S3 in force moment protection modification method
Schematic diagram；
Fig. 4 is the sub-step flow process that a kind of electric valve executing mechanism of the invention opens step S4 in force moment protection modification method
Schematic diagram；
Fig. 5 is the schematic diagram of type electric operator control principle embodiment in valve torque pass in the present invention；
Fig. 6 is the operation torque characteristic curve schematic diagram of two kinds of valves in the present invention；
Specific embodiment
During the daily Power operation of Yangjiang Nuclear Power factory, repeatedly occur nuclear island poplar repair electric operator cannot normally-open valve
Door, check find electric operator open force moment protection triggering, manually opened once after, valve switch function is recovered normally again,
Initial analysis valve opening moment causes triggering electric operator to open force moment protection as stiction is excessive.Want normally
Open valve, it is necessary to consider the valve opening frictional force problem of valve opening moment, according to feedback, even if exploitation moment valve element takes off completely
After opening, it is possible to force moment protection is opened in triggering, illustrate that valve opening frictional force has very big uncertainty.
The problem to be solved in the present invention is：Raise and repair the valve of electric operator and normally cannot open, increasing bypass
Afterwards, valve normally can be opened, but the problem to the whole control circuit upstream and downstream control protection equipment triggering residing for valve.
Technical scheme proposed by the present invention is：Propose a kind of electric valve executing mechanism to open force moment protection modification method and be
System, system are included for the device A in the two ends of electric valve executing mechanism protection act device increase valve opening bypass, use
According to the correspondence ring between electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The device B of several proportionate relationships, under a proportional relationship and the whole duration of valve opening of electric valve executing mechanism determines valve
Door opens bypass time relational expression：
Device C and be used for according to valve opening bypass time relational expression and valve electricity
It is other that dynamic parameter of actuating mechanism determines that the device D of bypass time value, device A increase in the control circuit of electric valve executing mechanism
Road, accordingly even when, electric valve executing mechanism protection device action excessive in valve opening moment stiction, the bypass of increase
Remain to make valve in loop, continue on；After bypass is opened, the electric operator of valve loses out force moment protection, this
When once can only be according to the problems such as the excessive caused electrical equipment excessively stream of the valve stiction that caused due to valve extremely, overload
Protection equipment by the upstream carries out related protection to the electric operator of valve, but so can substantially increase upstream protection equipment
Burden, cause loss and the fault rate of upstream protection equipment, therefore want what the time of split bypass carried out reasonably to adjust, comprehensive
The control loop of occlusal equilibration invention executing agency opens bypass time, and device B, C are adjusted according to the by-pass switch movement device of valve
Axle determines adjusting for valve opening bypass time with the proportionate relationship of the valve output shaft number of turns and valve whole opening time
Value, the effect of device D is to make to need to consider the stroke of valve and upstream and downstream protection equipment during valve opening bypass time
Range ability come determine bypass the opening time；The normally-open of valve is realized, then by the domestic 1E levels K3 class to valve
Poplar repaiies the adaptive setting analysis that electric operator opens force moment protection bypass, obtains the reasonable set value of bypass time, solves
Due to opening the protection problem of the circuit arrangement that bypass brings, the debugging efficiency of electric operator is improve, valve is improved
Unlatching performance, with extensive promotional value.In detail the present invention is explained below in conjunction with accompanying drawing.
First, embodiment of the method
Fig. 1 is that a kind of electric valve executing mechanism of the invention opens force moment protection modification method embodiment flow chart, refer to
Fig. 1, S1, electric valve executing mechanism protection act device two ends increase valve opening bypass.
Fig. 5 is the schematic diagram of type electric operator control principle embodiment in valve torque pass in the present invention, such as Fig. 5, S2
It is electric valve executing mechanism protection device, S7 is by-pass switch movement device, S8 is out Torque Control contact, and S1 is to close torque
Control contact, CO are that valve opens control coil, and CF is that valve closes control coil, and the two ends of bypass are moved with electric valve executing mechanism
The two ends for making device S2 connect
Valve opens electric valve executing mechanism movement device S2 conductings, the opening force square control of control loop in closed positions
S8 conductings in contact processed, while by by-pass switch movement device S7, by the short circuit of electric valve executing mechanism movement device, this kind of feelings
Under condition, even if electric valve executing mechanism protection device action, valve is opened control loop and is still turned on, and valve still is able to valve opening, from
And realize that valve opening moment bypasses the function of opening force square.After valve opening certain aperture, close terminal contact and disconnect, open bypass functionality
Exit, opening force square functional rehabilitation is normal.Bypassed by increasing, solve and asked due to the protection for opening the circuit arrangement that bypass brings
Topic, makes valve open moment, remains to turn on valve control loop during the protection device action of electric valve executing mechanism, make
Valve is normally-open.
S2, according between electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The corresponding number of turns proportionate relationship.Fig. 2 is that a kind of electric valve executing mechanism of the invention opens step in force moment protection modification method
The sub-step schematic flow sheet of S2, refer to Fig. 2, and step S2 includes：S1, according to electric valve executing mechanism parameter determination valve
Output axis helical teeth number, the stroke shaft number of teeth, the by-pass switch movement device adjustment axis number of teeth and the trip count number of teeth.S2, basis are not
The by-pass switch movement device adjustment axis number of teeth of the electric valve executing mechanism of same model and the trip count number of teeth determine that bypass is opened
Close movement device adjustment axis and the corresponding number of turns ratio of valve output shaft.Subordinate list 1 and 2 is electric valve executing mechanism parameter respectively
With internal drive relation,
The parameter of 1. electric valve executing mechanism of subordinate list
2. electric valve executing mechanism internal drive relation of subordinate list
For the electric operator of valve different model, although valve output shaft is different with the stroke shaft number of teeth, but fast
Than being identical, all it is about 0.7, such as subordinate list 2, the ESM input gears number of the electric operator of all models and trip count
The number of teeth is all 16 and 20, i.e., the ESM by-pass switch movement devices adjustment axis of all electric operators adjust 1 to enclose, valve output shaft
The corresponding number of turns is 0.875 circle.
S3, under a proportional relationship and the whole duration of valve opening of electric valve executing mechanism determines valve opening bypass time
Relational expression：
Fig. 3 is the sub-step flow process that a kind of electric valve executing mechanism of the invention opens step S3 in force moment protection modification method
Schematic diagram, refer to Fig. 3, S31, the parameter acquiring valve output shaft number of turns according to electric operator.S32, defeated according to valve
The rotating speed of the shaft number of turns and electric operator determines the valve whole process opening time.
After obtaining the relational expression of by-pass switch movement device adjustment axis and valve output shaft, fill further according to by-pass switch action
Put adjustment axis and the by-pass switch movement device 1 corresponding theoretical time of circle of adjustment is can be obtained by with the relational expression of bypass time, such as
Subordinate list 3, the by-pass switch movement device adjustment 1 of 3. different model electric operator of subordinate list enclose corresponding theoretical time.
Corresponding theoretical time is enclosed in the by-pass switch movement device adjustment 1 of 3. different model electric operator of subordinate list
| Model | Rotating speed | Turn-take number | Total travel time s | Theoretical bypass time s |
| K3-2HA3022-9FA00-0EC2-ZY01 | 20 | 4 | 11.8 | 2.5 |
| K3-2HA3022-9GA00-0EA2-ZY40 | 28 | 19 | 37.5 | 2.6 |
| K3-2HA3012-9HA00-0EA2-ZY40 | 40 | 14 | 18.8 | 2.4 |
| K3-2HA3032-9JA01-0EA2-ZY40 | 56 | 20 | 18 | 2 |
| K3-2HA3022-9KA00-0EC2-ZY40 | 80 | 19 | 13.5 | 1.9 |
The bypass opening time is set according to the adjustment number of turns of by-pass switch movement device so, true according to the stroke of valve
Its open range fixed, determines the time for needing bypass to open further according to its open range.
S4, according to valve opening bypass time relational expression and electric valve executing mechanism parameter determination bypass time value.
Fig. 4 is the sub-step schematic flow sheet that a kind of electric valve executing mechanism of the invention opens step S4 in force moment protection modification method,
Refer to Fig. 4, S41, determined according to the stroke of valve and need out the open range of bypass.S42, according to open range and valve
Open the determination of bypass time relational expression and open bypass time value.
Fig. 6 is the operation torque characteristic curve schematic diagram of two kinds of valves in the present invention, refer to Fig. 6, according to valve operation
Characteristic curve understands that, in 0%-20% open ranges, the operation torque of valve is larger for valve, and valve is in design, type selecting stage
The operating characteristic of valve actually have also contemplated that, therefore, in the range of this valve opening, the loading moment that electric operator bears
Also accordingly larger, it is the reliability for improving valve valve opening, bypass time also should be in the 0%-20% open ranges of valve total travel
Interior setting, but for the valve of big stroke cannot treat different things as the same, need the consideration bypass real time.Such as 4 electronic execution machine of subordinate list
The time of structure valve element abjection and bypass time contrast table,
The time of 4. electric operator valve element of subordinate list abjection and bypass time contrast table
According to No. 3 unit 3RRI313VN, 3RRI304VN feedbacks, in valve opening moment, even if after valve element is completely disengaged, still having
May trigger and open force moment protection, further prove that the frictional force of valve valve opening has very big uncertainty, therefore opening bypass needs
Emphasis is wanted to consider the uncertainty of frictional force, on the premise of equipment safety is ensured, proper extension opens bypass time, to ensure valve
Door is reliable to be opened.
Therefore, from for protection equipment safety, as long as opening force square bypass time can overcome unlatching instantaneous friction；
From for improving valve opening performance, opening force square bypass time slightly length is conducive to valve reliably to open, and both need balanced consideration,
Several factors such as comprehensive valve valve opening moment resistance characteristic, bypass stroke, upstream switch protection impact, and combine scene adjustment
Actual operability, analysis have shown that nuclear island is raised and have repaiied the rational opening force square bypass setting principle of electric operator, i.e., by electronic
The rotating speed of executing agency come adjust opening force square bypass.Such as 5. electric operator rotating speed of subordinate list and by-pass switch movement device S7
The contrast table of the adjustment number of turns, the time of valve element abjection and bypass time contrast table
The contrast table of the adjustment number of turns of 5. electric operator rotating speed of subordinate list and by-pass switch movement device S7
A kind of electric valve executing mechanism according to the present invention opens force moment protection modification method, and electric valve executing mechanism is opened
Force moment protection modification method also includes：True according to the upstream and downstream protection equipment of the residing control circuit of the electric operator of valve
Determine valve opening time.
After valve opening moment, opening force square bypass input, open force moment protection and fail in short-term, the protection of equipment can only pass through upstream
The overcurrent protection of switch and overload protection are realizing.Upstream switch relaying configuration such as Y2RRI011VN electric operators is shown in Table
6.
The control loop upstream and downstream switch protection allocation list at the place of 6. electric valve executing mechanism of table
Overcurrent protection is realized by the fast tripping protection of fuse, mainly prevents downstream load ground connection, winding interturn short-circuit
Deng major accident, device damage is prevented.Overload protection is realized by the inverse time-lag protection of electrothermal relay, mainly prevents from down swimming across
Load, bite etc., prevent motor damage because of overload or valve occur bite and damage valve.Just enable from bypass functionality below
Afterwards, affect to be analyzed in terms of opening force square bypass setting time is on overcurrent protection and overload protection two.
(1) opening force square bypasses the long impact to overcurrent protection
Valve opening moment, in the case of nothing opens force moment protection, if there is true ground connection or winding interturn short-circuit in downstream motor, its
Fault current is 6-8 times of rated current, and upstream switch fuse can be fused and protection equipment rapidly.Therefore in valve opening moment,
The time length of opening force square bypass is on overcurrent protection without impact.
(2) opening force square bypasses the long impact to overload protection
Within the time period of opening force square bypass, electric operator output is the power of torque capacity, and its electric current is also maximum
Torque current, by taking RRI011VN as an example, electric operator motor model 1LP1089-2WQ, torque capacity electric current is
13.5A.
According to thermocouple characteristic curve, under torque capacity current conditions, the actuation time of thermocouple is 60S or so.Power
The time of thermocouple action when the time of square bypass is much smaller than torque capacity electric current, therefore, in the case of valve non-genuine bite, other
Maximum control torque current in the time of road will not trigger upstream thermocouple protection act, on overload protection without impact.
It should be noted that the bypass opening time was set to the upstream and downstream protection of the control loop that valve is located in valve opening moment
Standby have no too much influence, but the time of the larger valve valve opening of some strokes is longer, the damage caused by upstream and downstream protection equipment
Evil be can not ignore, it is therefore desirable to which the time value that bypass is opened is modified, by implementing a kind of valve electricity proposed by the present invention
Dynamic executing agency opens force moment protection modification method, by setting the suitable bypass opening time, reduces because opening bypass to upper
Infringement and burden that downstream protection device is caused.
On the other hand, propose a kind of electric valve executing mechanism and open force moment protection update the system, including：
For increasing the device A of valve opening bypass at the two ends of electric valve executing mechanism protection act device, being used for
According to the corresponding number of turns between electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
Proportionate relationship device B, under a proportional relationship and the whole duration of valve opening of electric valve executing mechanism determines valve
Open bypass time relational expression：
Device C and be used for according to valve opening bypass time relational expression and valve electricity
Dynamic parameter of actuating mechanism determines the device D of bypass time value.
A kind of electric valve executing mechanism according to the present invention opens force moment protection update the system, for being held according to electric valve
Row mechanism parameter determines the dress of the proportionate relationship of the corresponding number of turns between by-pass switch movement device adjustment axis and valve output shaft
Put including：
For exporting axis helical teeth number, the stroke shaft number of teeth, by-pass switch according to electric valve executing mechanism parameter determination valve
The device B1 of the movement device adjustment axis number of teeth and the trip count number of teeth and for according to the electric valve of different model execute
The by-pass switch movement device adjustment axis number of teeth of mechanism and the trip count number of teeth determine by-pass switch movement device adjustment axis and valve
The device B2 of the corresponding number of turns ratio of door output shaft.
According to the present invention a kind of electric valve executing mechanism open force moment protection update the system, under a proportional relationship with
And the whole duration of valve opening of electric valve executing mechanism determines valve opening bypass time relational expression：
Device C include：
Device C1 for the parameter acquiring valve output shaft number of turns according to electric operator and it is used for according to valve
The rotating speed of the output shaft number of turns and electric operator determines valve whole process open-interval device C2.
A kind of electric valve executing mechanism according to the present invention opens force moment protection update the system, by according to valve opening
The device D of road time history form and electric valve executing mechanism parameter determination bypass time value is included for the row according to valve
Journey determines the device D1 of the open range for needing out bypass and is used for being closed according to open range and valve opening bypass time
It is that formula determines the device D2 for opening bypass time value.
A kind of electric valve executing mechanism according to the present invention opens force moment protection update the system, and electric valve executing mechanism is opened
Force moment protection update the system also includes：
Upstream and downstream protection equipment for the residing control circuit according to the electric operator of valve determines valve opening
The device E of time.
Force moment protection update the system is opened according to a kind of electric valve executing mechanism proposed by the present invention, electric valve executes machine
Structure open force moment protection update the system also include for open force moment protection valve actuator protection act device S2 and
For being switched on and off the by-pass switch movement device S7 for bypassing.
Implement a kind of electric valve executing mechanism in the present invention and open force moment protection modification method and system, by valve
Domestic 1E levels K3 class poplar repaiies the adaptive setting analysis that electric operator opens force moment protection bypass, proposes a kind of electric valve and executes
Mechanism opens force moment protection modification method and system, by increasing bypass at the spacing two ends of opening force square, in such cases, even if opening
The spacing disconnection of torque, the control loop of valve are still turned on, and realize the normally-open of valve, then by the domestic 1E levels to valve
K3 class poplars repair the adaptive setting analysis that electric operator opens force moment protection bypass, obtain the reasonable set value of bypass time, solution
The protection problem that has determined due to opening the circuit arrangement that bypass brings, improves the debugging efficiency of electric operator, improves
The unlatching performance of valve, reduces the infringement to upstream and downstream protection equipment, with extensive promotional value.
More than, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, any ripe
Know those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of electric valve executing mechanism opens force moment protection modification method, it is characterised in that include：
Increase valve opening bypass at the two ends of electric valve executing mechanism protection act device (S2)；
According between the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The proportionate relationship of the corresponding number of turns；
Whole duration of valve opening according to the proportionate relationship and the electric valve executing mechanism is determined by the valve opening
Road time history form：
According to the valve opening bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value.
2. force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
Valve opening bypass includes the by-pass switch movement device (S7) for shut-off bypass.
3. force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
According to the adjustment between the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The proportionate relationship of the number of turns, including：
Axis helical teeth number, the stroke shaft number of teeth, by-pass switch action are exported according to the electric valve executing mechanism parameter determination valve
The device adjustment axis number of teeth and the trip count number of teeth；
The by-pass switch movement device adjustment axis number of teeth and trip count according to the electric valve executing mechanism of different model
The number of teeth determines by-pass switch movement device adjustment axis and the corresponding number of turns ratio of valve output shaft.
4. force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
When whole duration of valve opening according to the proportionate relationship and the electric valve executing mechanism determines that the valve opening is bypassed
Between relational expression：
Including：
The valve output shaft number of turns according to the parameter acquiring of the electric operator；
Rotating speed according to the valve output shaft number of turns and the electric operator determines the valve whole process opening time.
5. force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that according to
The valve opening bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value, including：
Being determined according to the stroke of the valve needs out the open range of bypass；
Determined according to the open range and the valve opening bypass time relational expression and open bypass time value.
6. force moment protection modification method is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
Electric valve executing mechanism opens force moment protection modification method also to be included：
Upstream and downstream protection equipment according to the residing control circuit of the electric operator of the valve determines the valve opening
Time.
7. a kind of electric valve executing mechanism opens force moment protection update the system, it is characterised in that include：
For increasing the device (A) of valve opening bypass at the two ends of electric valve executing mechanism protection act device (S2), using
In according between electric valve executing mechanism parameter determination by-pass switch movement device (S7) adjustment axis and valve output shaft
The corresponding number of turns proportionate relationship device (B), for according to the proportionate relationship and the electric valve executing mechanism
Whole duration of valve opening determines the valve opening bypass time relational expression：
And be used for according to the valve opening bypass time relational expression
And the device (D) of the electric valve executing mechanism parameter determination bypass time value.
8. force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
For according between the electric valve executing mechanism parameter determination by-pass switch movement device adjustment axis and valve output shaft
The device (B) of the proportionate relationship of the corresponding number of turns includes：
For exporting axis helical teeth number, the stroke shaft number of teeth, by-pass switch according to the electric valve executing mechanism parameter determination valve
The device (B1) of the movement device adjustment axis number of teeth and the trip count number of teeth and for the valve electricity according to different model
The by-pass switch movement device adjustment axis number of teeth of dynamic executing agency and the trip count number of teeth determine that by-pass switch movement device is adjusted
Axle and the device (B2) of the corresponding number of turns ratio of valve output shaft.
9. force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
Determine that the valve is opened for the whole duration of valve opening according to the proportionate relationship and the electric valve executing mechanism
Open bypass time relational expression：
Including：
Device (C1) for the valve output shaft number of turns according to the parameter acquiring of the electric operator and it is used for root
The valve whole process open-interval device is determined according to the rotating speed of the valve output shaft number of turns and the electric operator
(C2).
10. force moment protection update the system is opened according to a kind of electric valve executing mechanism of the present invention, it is characterised in that described
For according to the valve opening bypass time relational expression and the electric valve executing mechanism parameter determination bypass time value
Device (D) include for according to the stroke of the valve determine need out bypass open range device (D1) and be used for
The device (D2) for opening bypass time value is determined according to the open range and the valve opening bypass time relational expression；Described
Electric valve executing mechanism opens force moment protection update the system also to be included：For according to residing for the electric operator of the valve
The upstream and downstream protection equipment of control circuit determines the device (F) of the valve opening time.
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| CN201611203969.4A CN106499857B (en) | 2016-12-22 | 2016-12-22 | Electric valve executing mechanism opens force moment protection modification method and system |
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| CN201611203969.4A CN106499857B (en) | 2016-12-22 | 2016-12-22 | Electric valve executing mechanism opens force moment protection modification method and system |
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| CN106499857B (en) | 2019-04-26 |
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