CN216045710U - Self-cleaning type intelligent valve positioner - Google Patents
Self-cleaning type intelligent valve positioner Download PDFInfo
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- CN216045710U CN216045710U CN202122105797.XU CN202122105797U CN216045710U CN 216045710 U CN216045710 U CN 216045710U CN 202122105797 U CN202122105797 U CN 202122105797U CN 216045710 U CN216045710 U CN 216045710U
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Abstract
The utility model discloses a self-cleaning intelligent valve positioner, which relates to the field of valve positioners and comprises a coil, a magnet, a baffle and a nozzle; the magnet is arranged in the coil, the magnet is fixedly connected to the lower end of the baffle, the upper end of the baffle is arranged in front of the nozzle, driving current and sine square waves are input into the coil, and the purpose of dust removal is achieved by means of air flow through the fact that the baffle is subjected to frequency sweeping vibration in a frequency band. And the sweep frequency vibration of the baffle is realized by inputting a sine wave of a driving current and a zero current into the coil or inputting a driving current in a positive direction and a driving current in a negative direction in a time-sharing manner.
Description
Technical Field
The utility model relates to the field of valve positioners, in particular to a self-cleaning intelligent valve positioner.
Background
The intelligent positioner is driven and controlled in two modes, one mode is a driving amplifier structure taking a piezoelectric ceramic valve as a pilot, and the other mode is a driving valve driven by a nozzle baffle structure through gas path amplification;
the gas path amplification driving valve has simple structure, reliability and easy maintenance, and has far less strict requirement on gas source than that of a piezoelectric ceramic valve. When a small amount of impurities and water vapor appear in the air source, the impurities can be discharged automatically generally without influencing normal work, but the impurities are accumulated on the nozzle for a long time and need to be cleaned manually.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a self-cleaning intelligent valve positioner, which achieves the aim of removing dust by means of airflow by enabling a baffle to vibrate in a frequency sweep mode. And the sweep frequency vibration of the baffle is realized by inputting a sine wave of a driving current and a zero current into the coil or inputting a driving current in a positive direction and a driving current in a negative direction in a time-sharing manner.
A self-cleaning intelligent valve positioner comprises a coil, a magnet, a baffle and a nozzle; the magnet is arranged in the coil, the magnet is fixedly connected to the lower end of the baffle, the upper end of the baffle is arranged in front of the nozzle, and driving current and sine square waves are input into the coil.
Preferably, the sinusoidal square wave input in the coil can be replaced by other sinusoidal waveforms.
Preferably, the drive current and the sinusoidal square wave input into the coil can be replaced by time-sharing input of drive currents in the forward direction and the reverse direction.
The utility model has the advantages that: the structure is simple, the use is flexible, and the purpose of dust removal is achieved by means of air flow through the fact that the baffle vibrates in a frequency band in a frequency sweep mode. And the sweep frequency vibration of the baffle is realized by inputting a sine wave of a driving current and a zero current into the coil or inputting a driving current in a positive direction and a driving current in a negative direction in a time-sharing manner.
Drawings
FIG. 1 is a schematic diagram of the operation of a nozzle baffle in the present invention;
FIG. 2 is a schematic diagram of the one-way drive of the present invention;
FIG. 3 is a schematic view of the bi-directional drive scheme of the present invention;
the device comprises a coil 1, a coil 2, a magnet 3, a baffle 4 and a nozzle.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in fig. 1 to 3, the present solution includes a coil 1, a magnet 2, a baffle 3 and a nozzle 4, wherein the magnet 2 is located in the coil 1, the magnet 2 is fixedly connected to the lower end of the baffle 3, and the upper end of the baffle 3 is located in front of the nozzle 4.
The scheme realizes self-cleaning in the following way: the driving current and the square wave are input into the coil 1, so that the baffle vibrates in a frequency sweep mode, and the dust removal purpose is achieved by means of air flow.
Of course, the square wave input into the coil 1 can be replaced by other sine waves, and the effect of frequency sweeping vibration can be achieved.
Still another preferred method is: the driving current in the positive direction and the driving current in the negative direction are input in the coil 1 in a time-sharing manner, so that the baffle can also vibrate in a frequency sweep mode, and the aim of dust removal is achieved by means of airflow.
The specific implementation mode and principle are as follows:
a small current is introduced into the coil 1, the coil 1 can drive the magnet 2 to act after being electrified, and then the baffle 3 is driven to act, and the baffle 3 causes small changes between the nozzle 4 and the baffle 3, so that pressure changes leading to the amplifier can be obtained.
In actual use, cleaning of impurities in the nozzle is not as simple as imagination, the related parts of the positioner are often disassembled to clean the nozzle part, and for this reason, the parts of the positioner are also required to be disassembled, so that time and labor are wasted. We have a better solution to this problem.
A vibration dust removal method: the baffle 3 is vibrated in a frequency band by frequency sweeping, and the aim of dust removal is achieved by means of air flow. The frequency sweep is from low frequency to high frequency, and then from high frequency to low frequency. The impurity particles have different sizes and shapes, and the frequency sweeping aims to achieve the best dust removal effect when the vibration frequency is close to the inherent frequency of the dust particles. A great deal of experimental data show that the dust removal frequency of the nozzle of the positioner is best in the range of 2-10 Hz.
The implementation method comprises the following steps: the intelligent positioner is particularly simple to realize the dust removal method, a key is additionally designed on the positioner or other methods are used, even a HART remote instruction is used for starting a section of special program, square wave values (also other waveforms such as sine and the like) of driving current and zero current are output to the coil 1, and the dust removal purpose can be achieved by sweeping and outputting. The other method with better effect adopts bidirectional drive, outputs driving current in the positive direction and the negative direction to the coil 1 in a time-sharing way, the vibration amplitude of the baffle is larger, and the dust removal effect is better.
Based on the above, the utility model has simple structure and flexible use, and achieves the aim of dust removal by means of airflow by enabling the baffle to vibrate in a frequency band in a frequency sweep mode. And the sweep frequency vibration of the baffle is realized by inputting a sine wave of a driving current and a zero current into the coil or inputting a driving current in a positive direction and a driving current in a negative direction in a time-sharing manner.
It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (3)
1. A self-cleaning intelligent valve positioner is characterized by comprising a coil (1), a magnet (2), a baffle (3) and a nozzle (4); the magnet (2) is arranged in the coil (1), the magnet (2) is fixedly connected to the lower end of the baffle (3), the upper end of the baffle (3) is arranged in front of the nozzle (4), and driving current and square waves are input into the coil (1).
2. The self-cleanable intelligent valve positioner of claim 1, wherein: the square wave input in the coil (1) can be replaced by a sinusoidal waveform.
3. The self-cleanable intelligent valve positioner of claim 1, wherein: the drive current and the square wave input in the coil (1) can be replaced by time-sharing input of the drive current in the positive direction and the drive current in the negative direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202122105797.XU CN216045710U (en) | 2021-09-02 | 2021-09-02 | Self-cleaning type intelligent valve positioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202122105797.XU CN216045710U (en) | 2021-09-02 | 2021-09-02 | Self-cleaning type intelligent valve positioner |
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CN216045710U true CN216045710U (en) | 2022-03-15 |
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CN202122105797.XU Active CN216045710U (en) | 2021-09-02 | 2021-09-02 | Self-cleaning type intelligent valve positioner |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115500718A (en) * | 2022-09-20 | 2022-12-23 | 河南翰宇新能源技术有限公司 | Hot water shower screen is with anti-disassembly installation component |
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2021
- 2021-09-02 CN CN202122105797.XU patent/CN216045710U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115500718A (en) * | 2022-09-20 | 2022-12-23 | 河南翰宇新能源技术有限公司 | Hot water shower screen is with anti-disassembly installation component |
CN115500718B (en) * | 2022-09-20 | 2023-10-13 | 河南翰宇新能源技术有限公司 | Anti-disassembly installation component for hot water shower screen |
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