CN100511064C

CN100511064C - Flow regulation control system

Info

Publication number: CN100511064C
Application number: CNB2006100017046A
Authority: CN
Inventors: 黄依华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-23
Filing date: 2006-01-23
Publication date: 2009-07-08
Anticipated expiration: 2026-01-23
Also published as: CN101008853A

Abstract

The flow regulating valve control system acts on a flow regulating mechanism, the opening of a flow regulating valve arranged in the flow regulating mechanism is changed to regulate the flow, the rotation of a motor is used as the power of the opening of the flow regulating valve, the power of the motor is transmitted to a terminal output shaft through a plurality of speed change gears and clutch gears, and the terminal output shaft drives the opening of the flow regulating valve to change; calculating the revolution number of the terminal output shaft through a magnet which synchronously rotates with the terminal output shaft and a magnetic induction component corresponding to the magnet to obtain different feedback signals, and obtaining the opening degree of the flow regulating valve; when the terminal output shaft cannot rotate any more in the maximum and minimum opening states of the flow regulating valve, the clutch gear generates the action of protection disengagement to enable the magnetic induction assembly not to detect the feedback signal, and the maximum or minimum opening of the flow regulating valve is known by referring to the positive and negative rotation of the motor to serve as a reference method for zero resetting and correcting the frequency signal of the flow regulating valve control system.

Description

Flow regulating control system

Technical field

The present invention is a kind of flow regulating control system, refers to a kind of system of burner so that flow regulation and control are carried out in combustion gas that be applied to especially, regulates even can carry out gas flow to the burner with two fire rows, controls accurately with the firepower to burner.

Background technology

Traditional mechanical flow adjustment control method, generally all use linear transducer, or the position transducer that is equal to of variohm is regulated and the signal of feedback position, so linear transducer often exist abrasion in the use, life-span can't be for a long time and control system complicated or the like defective, and difficult the flow control valve that has two outlets is simultaneously carried out correct control.

Before take off relevant existing machinery formula flow regulator means, though can use the driven unit of stepping motors as flow regulator, it is bigger so to belong to power consumption owing to the needed drive current of stepping motors and operating voltage are higher, for with the control device of dry cell as power source, for example: gas heater, gas oven ... Deng the running of the flow control valve in the burner with and igniting, the power source of control system running, the certain difficulty degree is often arranged on applying, the electric power that is difficult to provide extra drives stepping motors, especially when being provided with a large amount of electronics in this burner, the greatest problem point that the problem of its power consumption is often faced on applying for existing machinery formula flow regulator.

Summary of the invention

The present invention seeks at above-mentioned problem points, design the low Flux Valve Control system of a kind of power consumption, so that getting directly, burner provide the Flux Valve Control system required electric power with built-in dry cell, so that burner must be adopted comprehensive electronization control, and meet the demand of industry.

Flux Valve Control of the present invention system, be to act on the flow governor motion, so that the aperture size of set flow control valve changes and reaches flow regulation in the flow control device, it is characterized in that: the Flux Valve Control system is with the rotation of the general direct current low-power motor power as flow control device aperture size, the rotation of this motor behind several speed gears and clutch gear to the terminal output shaft, drive flow control valve with the terminal output shaft again, so that the aperture size of flow control valve changes; And aforementioned Flux Valve Control system also includes with the terminal output shaft and carries out the magnet of synchronous turn and the magnetic induction assembly corresponding with aforementioned magnet, revolution with the computing terminal output shaft obtains different feedback signals, and further learns the aperture size of flow control valve; The terminal output shaft is at the aperture maximum of flow control valve and minimum state and can't rotate the time again; the action that clutch gear produces the protection disengaging can't detect feedback signal to make the magnetic induction assembly; and the aperture that can learn flow control valve with reference to the rotating of motor is for maximum or minimum, according to this as Flux Valve Control system frequency signal zero-in pedestal method.

In view of the above, Flux Valve Control of the present invention system can see through direct current low-power motor and come carry out the adjustment of aperture size for flow control device, in other words, enforcement of the present invention is more saved electric power compared to prior art, therefore is more suitable for being used in dry cell as on the burner of implementing.

Secondly, flow control valve can further comprise one driven by the terminal output shaft and produces linearly moving valve plug group, move to change the aperture of flow control device by linearity by the valve plug group, the aperture minimum state of aforementioned flow control valve is meant that the valve plug group valve port that flow control valve is set is sealed the state that ends again.And also can further comprising the set minimum flow through hole of little rod of a flow and flow control valve, the valve plug group cooperates, little rod of flow is linear with the valve plug group can back and forth to shuttle back and forth in the minimum flow through hole when mobile, and be preset with the circulation section of different flow on little rod of flow, be its feature so that little rod of flow produces different flow supply effects when shuttling back and forth in the low discharge through hole.

What deserves to be mentioned is, because Flux Valve Control of the present invention system can carry out accurate Electronic Control to the aperture of flow control valve, therefore the present invention is more suitable for being used on the burner with two fire rows, for example: flow control valve can further have a primary valve and slow opening, and the valve plug group is provided with main valve plug, slow open valve plug respectively with aforementioned primary valve, slow opening correspondence, carry out linear when mobile and make main valve plug be opened into one when setting aperture in the valve plug group, the slow valve plug of holding just can be opened and makes slow opening be open state, see through of the control of Flux Valve Control of the present invention system to the valve plug group, can make primary valve and slow opening open accurately, and aperture accurately controlled, so that make primary valve and slow opening be more conducive to electronization or digitized control.

In addition, the flow control valve and one that aforementioned flow control device also can include a plurality of parallel connections and independent running simultaneously is located at the main valve of each flow control valve upstream extremity, the power of this main valve is provided by a blunt low-power motor equally, and each flow control valve and main valve are integrated control with Flux Valve Control of the present invention system, when a flow control valve wherein breaks down can't cut out the time, can be by stop the circulation of fluid by closing of main valve, and this kind technological means especially is fit to use for burner, to prevent and can easily unexpectedly take place.

The effect of the technology of the present invention

1. Flux Valve Control of the present invention system is founded, and can make flow control device obtain Electronic Control more accurately, so that the aperture size of each set flow control valve is more accurate in the flow control device, to meet user's demand.

2. Flux Valve Control system employs of the present invention can further accurately be controlled the firepower size of burner through flow control when burner, and can see through the low discharge through hole carry out minimum firepower to burner gas supply.

3. because Flux Valve Control of the present invention system can carry out accurate Electronic Control to the aperture of flow control valve, so the present invention is more suitable for being used on the burners with two fire rows.

4. Flux Valve Control of the present invention system is beneficial to the integral body of burner and carries out electronization or digitized control, so that security mechanism and controlling mechanism are more complete.

5. when the flow control valve and that includes a plurality of parallel connections and independent running when the flow control device of burner is located at the main valve of each flow control valve upstream extremity, Flux Valve Control of the present invention system can be integrated control to each flow control valve and this main valve, so that the use of burner is safer.

Description of drawings

Fig. 1: embodiments of the invention cut-open view;

Fig. 2: the motor drive mechanism synoptic diagram of the embodiment of the invention;

Fig. 3: another of flow regulation rod of the present invention executed sample attitude synoptic diagram;

Fig. 4: the another sample attitude synoptic diagram of executing of flow regulation rod of the present invention;

Fig. 5: flow regulation rod of the present invention one execute sample attitude synoptic diagram again;

Fig. 6: the invention process is in the synoptic diagram with many fire doors gas oven;

Fig. 7: the invention process is in the action flow chart of safe traffic variable valve.

[primary clustering symbol description]

100 flow control devices

10 flow control valves

101 primary valves

102 slow openings

11 valve plug groups

111 main valve plugs

The 112 slow valve plugs of opening

113 elastic partss

Little rod of 12 flows

121 through holes

122 breach

13 minimum flow through holes

20 motors

21 speed gears

22 clutch gears

23 terminal output shafts

30 magnet

31 magnetic induction assemblies

40 main valves

50 igniting boxes

60 igniting and flame detect pin

200 fire doors

Stove fire row in 201

202 outer stove fire rows

300 control panels

Embodiment

Following foundation technological means of the present invention lists and is suitable for mode of the invention process, and cooperates graphic explanation as the back:

Please consult Figure 1 and Figure 2 simultaneously, wherein Fig. 1 is that embodiments of the invention cut-open view, Fig. 2 are the motor drive mechanism synoptic diagram of the embodiment of the invention, disclosing the Flux Valve Control system among the figure is to act on the flow governor motion 100, so that the aperture size of set flow control valve 10 changes and reaches flow accent person in the flow control device 100.

This Flux Valve Control system is with the rotation of motor 20 power as flow control device 100 aperture sizes, the rotation of this motor behind several speed gears 21 and clutch gear 22 to terminal output shaft 23, drive flow control valve 10 with terminal output shaft 23 again, so that the aperture size of flow control valve 10 changes.

And aforementioned Flux Valve Control system also includes with terminal output shaft 23 and carries out the magnet 30 of synchronous turn and the magnetic induction assembly 31 corresponding with aforementioned magnet 30, revolution with computing terminal output shaft 23 obtains different feedback signals, and further learns the aperture size of flow control valve 10.

Terminal output shaft 23 is at the aperture maximum of flow control valve 10 and minimum state and can't rotate the time again; the action that clutch gear 22 produces the protection disengaging can't detect feedback signal to make magnetic induction assembly 31; and the aperture that can learn flow control valve 10 with reference to the rotating of motor is for maximum or minimum, according to this as Flux Valve Control system frequency signal zero-in pedestal method.

Flow control valve 10 further comprises one driven by terminal output shaft 23 and produces linearly moving valve plug group 11, move to change the aperture of flow control device 100 by linearity by valve plug group 11, the aperture minimum state of aforementioned again flow control valve 10 is meant that valve plug group 11 sealed flow control valve 10 set valve ports the state that ends.

Wherein valve plug group 11 further comprises a flow little rod 12 and flow control valve 10 set minimum flow through holes 13 and cooperates, little rod of flow 12 is linear with valve plug group 11 can back and forth to shuttle back and forth in minimum flow through hole 13 when mobile, and be preset with the circulation section of different flow on little rod of flow 12, so that little rod of flow 12 produces different flow supply effects when shuttling back and forth in low discharge through hole 13, for example: little rod of flow 12 for right cylinder with tapering so that little rod of flow 12 produces the change of flow in the process of low discharge through hole 13 in shuttling back and forth.

In addition, because the present invention is by by the running of aforementioned motor 20 and see through magnet 30 and make the linear displacement of valve plug group 11 obtain accurately to control cooperating of magnetic induction assembly 31, also therefore, the present invention especially is fit to utilization to have on two flow control valves 10 that export, so that the two fire rows' of sacrificial vessel burner uses.

Flow control valve 10 can further have a primary valve 101 and slow opening 102 on the implementation, and valve plug group 11 is provided with main valve plug 111, the slow valve plug 112 of opening is corresponding with aforementioned primary valve 101, slow opening 102 respectively, carry out linearly when mobile and make main valve plug 111 be opened into one when setting aperture in valve plug group 11, the slow valve plug 112 of holding just can be opened and makes slow opening be open state.

Aforementioned slow opening 102 is to utilize an elastic parts 113 to provide slow to open valve plug 112 1 and push away the strength of stretching, and makes valve plug group 11 driven by direct current low-power motor 20 and linear when mobile, main valve plug 111 start that changes of aperture in advance; When the displacement of valve plug group 11 reached the extension limit of elastic parts 113, the slow valve plug 112 of holding just can be with the moving change that produces aperture of the displacement of valve plug group 11, delayed the effect of opening and reach by the drop of one stroke thus; The slow utilization of opening effect of this kind especially is fit to be used on the gas oven fire door with interior stove fire row and outer stove fire row, so that the interior stove fire row of gas oven fire door can present the difference of stage for fire with outer stove fire row; And look user demand, the slow valve plug 112 of opening of a plurality of slow openings 102 and respective amount also can be set, so that valve body fire more than 10 pairs row's fire door carries out gas supply stage by stage in same valve body 10.

Shown in Figure 3, be that another of flow regulation rod of the present invention executed sample attitude synoptic diagram, little rod of flow 12 can be the right cylinder with scalariform drop on the implementation, and the circulation bore that utilizes the scalariform drop to present changes and presents the variation of flow size.

Shown in Figure 4, it is the another sample attitude synoptic diagram of executing of flow regulation rod of the present invention, little rod of flow 12 is channelled hollow tube, and little rod of flow 12 is provided with the through hole 121 of a plurality of continue arrangement and aperture gradual changes, to present the variation of flow size by the displacement by through hole 121.

Shown in Fig. 5 figure, be flow regulation rod of the present invention one execute sample attitude synoptic diagram again, perhaps little rod of flow 12 is channelled hollow tube, and little rod of flow 12 is provided with the breach 122 of a width gradual change, presents the variation of flow size by the displacement by breach 122.

Shown in Figure 6, be that the invention process is in the synoptic diagram with many fire doors gas oven, the flow control valve 10 that the flow control device 100 of this gas oven includes a plurality of parallel connections and independent running is corresponding with each fire door 200, and each fire door 200 also can be the design with interior stove fire row 201 and outer stove fire row 202, and when each flow control valve 10 upstream extremity can be put a main valve 40, can the one lower powered d.c. motor 20 that this main valve 40 is same was as power resources.

Also can utilize a control panel 300 to show every operating state of gas oven on the implementation, and provide the user to carry out the setting of operations, and Flux Valve Control of the present invention system can be to each flow control valve 10, main valve 40, set igniting box 50 on control panel 300 and the gas oven, igniting and flame detect pin 60 and are integrated control, so that the use of gas oven is safer, when a flow control valve 10 wherein breaks down can't cut out the time, can be by stop the circulation of fluid by closing of main valve 40, and this kind technological means especially is fit to use for burner, to prevent possible easily outer the generation; Moreover the present invention has the characteristics of low power consumption on the implementation, therefore can directly be used as providing of power supply with a dry cell 70.

And that the action flow chart of relevant aforementioned safe traffic variable valve can be consulted is shown in Figure 7, when Flux Valve Control system employs of the present invention during in burner, can see through the adjustment that the accurate supply of combustion gas is reached firepower, because graphic plate face is limited, so in Fig. 7, there is partial content only to represent with code name, the theing contents are as follows of its code name and representative:

N1 is motor 20 pulse positions before regulating;

N is motor 20 current pulse positions;

B is motor 20 one section of rise or reduces one section umber of pulse (constant);

C is that maximum fire arrives one section firepower umber of pulse of downward modulation.

Its main operation steps is as follows; Close flow control valve S2 even Flux Valve Control system motor after preliminary examination powers on S1 is rotated in the forward, next detecting pulse has not S3, then represents flow control valve also not close if pulse exists, and then make motor continue to be rotated in the forward this moment.

There is not S3 record pulse when not existing when detecting pulse, represent flow control valve to close, the S4 even motor stops operating, igniting S5 can start shooting after motor stops, and make motor reverse rotation reverse rotation pulse N that firepower is adjusted to moderate heat S6, promptly detecting fire door afterwards, flame is arranged denys S7, if no flame promptly judges whether to light a fire overtime (S8), if if not the overtime detection overtime S9 and return again motor and be rotated in the forward the step of closing flow control valve S2 of promptly stopping to light a fire that lights a fire that promptly continues that lights a fire.

Flame is arranged denys S7 testing result when existing for flame is arranged when detecting fire door, promptly stops the S10 that lights a fire, and detects that flame is arranged denys S11 this moment, returns again motor when existing as if no flame and is rotated in the forward the step of closing flow control valve S2.

Flame is arranged denys S11 when flame is arranged when detection, promptly compares S12 to setting firepower with current firepower, and flame is arranged denys the cycle detection that the step of S11 continues if set the identical i.e. recurrence with current firepower of firepower.

When firepower is compared S12 for greater than current firepower the time with current firepower, promptly being set at maximum fire denys the judgement of S13, promptly carry out firepower and raise one section, the step of motor reverse rotation pulse B, current motor pulse position N=N1+BS14 if not be set at maximum fire, and in back recurrence flame is arranged denys the cycle detection that the step of S11 continues.

If promptly be set at maximum fire deny S13 be when being set at maximum fire, promptly carry out the step of one section of firepower rise, motor reverse rotation step-by-step counting S15, then carry out pulse detection the more not step of S16 is arranged, if having pulse then to continue paired pulses detects, when falling for the no pulse state, promptly carry out the step that the count pulse number is CS17, and in back recurrence flame is arranged denys the cycle detection that the step of S11 continues.

Aforementioned setting firepower compare with current firepower S12 for less than state the time, promptly carrying out current denys the step of S18 for maximum fire, promptly enter one section of firepower downward modulation, motor if yes and be rotated in the forward the step of pulse C, current motor pulse position N=N1-CS19, and in back recurrence flame is arranged denys the cycle detection that the step of S11 continues.

Aforementioned current deny the step of S18 for maximum fire, if in the time of not, promptly carry out one section of firepower downward modulation, motor and be rotated in the forward the step of pulse B, current motor pulse position N=N1-BS20, and in back recurrence flame is arranged denys the cycle detection that the step of S11 continues.

But, above implementation and graphic shown in, be preferred embodiment person of the present invention, be not to limit to the present invention with this, so, approximate with structure of the present invention, device, feature etc. such as or identical mutually person, all should belong to of the present invention found purpose and claim in.

Claims

1. a Flux Valve Control system is to act on the flow governor motion, the aperture size of flow control valve set in this flow control device is changed, thereby reach flow regulation, it is characterized in that:

The Flux Valve Control system is with the rotation of the motor power as flow control device aperture size, behind this motor moving several speed gears of generation and the clutch gear to making the rotation of terminal output shaft, drive flow control valve with the terminal output shaft again, the aperture size of flow control valve is changed; And aforementioned Flux Valve Control system also includes with the terminal output shaft and carries out the magnet of synchronous turn and the magnetic induction assembly corresponding with aforementioned magnet, obtain different feedback signals with the revolution of computing terminal output shaft, and further learn the aperture size of flow control valve; The terminal output shaft is at the aperture maximum of flow control valve and minimum state and can't rotate the time again, the action that clutch gear produces the protection disengaging can't detect feedback signal to make the magnetic induction assembly, and the aperture that can learn flow control valve with reference to the rotating of motor is for maximum or minimum, according to this as Flux Valve Control system frequency signal zero-in pedestal method;

Described this flow control valve further comprises one driven by the terminal output shaft and produces linearly moving valve plug group, move to change the aperture of flow control device by linearity by the valve plug group, the aperture minimum state of aforementioned flow control valve is meant that the valve plug group valve port that flow control valve is set is sealed the state that ends again;

Described this valve plug group further comprises the set minimum flow through hole of little rod of a flow and flow control valve and cooperates, little rod of flow is linear with the valve plug group can back and forth to shuttle back and forth in the minimum flow through hole when mobile, and be preset with the circulation section of different flow on little rod of flow, so that little rod of flow produces different flow supply effects when shuttling back and forth in the minimum flow through hole.

2. Flux Valve Control system according to claim 1, it is characterized in that: little rod of described this flow is the right cylinder with tapering.

3. Flux Valve Control system according to claim 1, it is characterized in that: little rod of described this amount is the right cylinder with scalariform drop.

4. Flux Valve Control system according to claim 1, it is characterized in that: little rod of described this flow is channelled hollow tube, little rod of flow is provided with a plurality of continuing and arranges and the through hole of aperture gradual changes.

5. Flux Valve Control system according to claim 1, it is characterized in that: little rod of described this flow is channelled hollow tube, and little rod of flow is provided with the breach of a width gradual change, presents the variation of flow size by the displacement by breach.

6. Flux Valve Control system according to claim 1, it is characterized in that: described this flow control valve further has a primary valve and slow opening, and the valve plug group is provided with main valve plug, the slow valve plug of opening is corresponding with aforementioned primary valve, slow opening respectively, carry out linearly when mobile and make main valve plug be opened into one when setting aperture in the valve plug group, the slow valve plug of holding just can be opened and makes slow opening be open state.

7. Flux Valve Control system according to claim 1, it is characterized in that: the flow control valve and that described this flow control device includes a plurality of parallel connections and independent running simultaneously is located at the main valve of each flow control valve upstream extremity, and this main valve is as the source of power equally with the rotation of motor.