CN114542791A - Device and method for remotely judging action of direct current solenoid valve - Google Patents
Device and method for remotely judging action of direct current solenoid valve Download PDFInfo
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
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- 238000003745 diagnosis Methods 0.000 abstract description 2
- 230000000875 corresponding effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
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- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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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
- F16K37/0025—Electrical or magnetic means
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Abstract
The invention relates to the field of electromagnetic control, in particular to a device and a method for remotely judging the action of a direct current solenoid valve, which comprises the following steps: the sound sensor is used for detecting the sound of the action of the monitored solenoid valve; the first processing module is connected with the sound sensor and used for generating an electric signal according to the sound detected by the sound sensor; and the second processing module is connected with the first processing module and used for judging whether the monitored electromagnetic valve completes the action or not according to the electric signal generated by the first processing module and sending the action completion information to the control terminal. Particularly, under the condition of jamming failure of the coil or the electromagnetic valve body, whether the direct current electromagnetic valve finishes the action command of the control terminal can be directly judged remotely, and failure diagnosis and processing are facilitated.
Description
Technical Field
The invention relates to the field of electromagnetic control, in particular to a device and a method for remotely judging the action of a direct current solenoid valve.
Background
The electromagnetic valve is industrial equipment controlled by utilizing an electromagnetic principle, is applied to an industrial control system and is used for controlling the on-off of a medium. The direct current electromagnetic valve can be divided into a normally open type and a normally closed type, when the direct current electromagnetic valve is electrified, the electromagnetic coil generates electromagnetic force to lift or press the valve head from or on the valve seat, and the valve is opened or closed; when the power is cut off, the electromagnetic force generated by the electromagnetic coil disappears, and due to the action of the spring force, the valve head is pressed on the valve seat or lifted from the valve seat, and the valve is closed or opened.
Because the direct current solenoid valve has no limit switch, the feedback signal of the action of the direct current solenoid valve is a coil power-on signal or a power-off signal, so that the direct current solenoid valve can be remotely judged whether to be powered on or powered off, and if the coil works abnormally or the solenoid valve is jammed inside after being powered on or powered off, the action of the solenoid valve cannot be truly reflected by the power-on or power-off feedback signal alone.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that whether the action of the electromagnetic valve is finished or not cannot be truly reflected by a feedback signal of power failure or power failure, thereby providing a device and a method for remotely judging the action of the direct current electromagnetic valve, wherein the technical scheme is as follows:
in one aspect, the present application provides a device for remotely judging the action of a dc solenoid valve, which is used for being fixed on a monitored solenoid valve, and comprises:
the sound sensor is used for detecting the sound of the action of the monitored solenoid valve;
the first processing module is connected with the sound sensor and used for generating an electric signal according to the sound detected by the sound sensor;
and the second processing module is connected with the first processing module and used for judging whether the monitored electromagnetic valve completes the action or not according to the electric signal generated by the first processing module and sending the action completion information to the control terminal.
Optionally, the sound sensor comprises a plurality of sound sensors, the first processing module comprises a plurality of sound sensors, and each sound sensor is connected with at least one first processing module; or
The plurality of sound sensors are connected with the plurality of first processing modules in a one-to-one correspondence mode.
Optionally, the number of the sound sensors is 2, and the number of the first processing modules is 2.
Optionally, the apparatus further comprises: and the data amplification module is respectively connected with the first processing module and the second processing module and is used for amplifying the electric signal generated by the first processing module and transmitting the amplified electric signal to the second processing module.
Optionally, the apparatus further comprises: and the communication module is respectively connected with the second processing module and the control terminal, receives the judgment result of the second processing module and sends the action completion information to the control terminal.
In another aspect, the present application provides a method for remotely determining an action of a dc solenoid valve, which is applied to the above apparatus, and the method includes:
the sound sensor detects the sound of the action of the monitored solenoid valve and transmits the detected sound to the first processing module;
the first processing module processes the sound detected by the sound sensor, and generates an electric signal to be transmitted to the second processing module;
the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal and sends action completion information to the control terminal.
Optionally, the method further comprises: the control terminal sends an action instruction to the monitored electromagnetic valve; the second processing module receives a trigger signal of the action instruction;
after receiving the trigger signal, the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal, and sends action completion information to the control terminal.
Optionally, the determining whether the monitored solenoid valve completes the action based on the electrical signal includes: comparing the electric signal with a preset signal; the preset signal is an electric signal generated by the first processing module when the monitored electromagnetic valve does not act; if the electric signal is greater than a preset signal, the action of the monitored electromagnetic valve is finished; if the electrical signal is equal to a preset signal, the action of the monitored solenoid valve is not completed.
Optionally, the method further comprises: the first processing module sends the generated electric signal to a data amplification module; and the data amplification module amplifies the electric signal and sends the amplified electric signal to the second processing module.
Optionally, the method further comprises: the second processing module sends the judgment result to the communication module; and the communication module sends the judgment result to the control terminal.
The technical scheme of the invention has the following advantages:
according to the device for remotely judging the action of the direct current solenoid valve, sound can be generated when the monitored solenoid valve performs opening or closing action, the sound sensor monitors the sound of the action of the monitored solenoid valve in real time, the first processing module generates an electric signal according to the sound detected by the sound sensor, the second processing module judges whether the action (opening or closing) of the monitored solenoid valve is finished according to the electric signal generated by the first processing module, and the action finishing information of the monitored solenoid valve is sent to the control terminal, so that the action of the direct current solenoid valve is judged quickly, intuitively and accurately, and the operation state of a system is analyzed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus for remotely determining an operation of a dc solenoid valve according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a device for remotely judging the operation of a DC solenoid valve according to embodiment 1 of the present invention, which is installed on a monitored solenoid valve;
fig. 3 is a flowchart of a method for remotely determining the operation of a dc solenoid valve according to embodiment 2 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "coupled" and "connected" are used broadly and encompass, for example, direct coupling, indirect coupling via an intermediary agent, communication between two elements, wireless coupling, and wired coupling. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The direct current electromagnetic valve is fast in operation, and is particularly suitable for helium atmosphere, so that the direct current electromagnetic valve is widely applied to a fuel handling system of a high temperature gas cooled reactor nuclear power plant. High-pressure helium gas of about 7.0Mpa exists in the normal operation of a primary loop and a fuel loading and unloading system of the high-temperature gas cooled reactor, a direct-current electromagnetic valve of the fuel loading and unloading system can perform corresponding actions due to the change of the operation condition of the system, and the pipeline arrangement of the direct-current electromagnetic valve is complex and has strong radioactivity, so that the approach of personnel is very difficult. After the electromagnetic valve acts, the electromagnetic valve can only be judged through the power-on/power-off indication of the electromagnetic valve, and whether the electromagnetic valve acts can not be checked on site. The position of the electromagnetic valve cannot be accurately judged only by power on/off of the electromagnetic valve, and after a large number of electromagnetic valves have remotely operated in the current high-temperature gas cooled reactor demonstration engineering practice, a valve position feedback signal of a human-computer interface of a control terminal (DCS) is lost, and the condition of switch deviation fault is reported, so that the judgment of the operation state and the fault treatment are not facilitated.
Example 1
In the present embodiment, a device for remotely determining the operation of a dc solenoid valve is provided, as shown in fig. 1 and 2, the device 10 may be fixed to a monitored solenoid valve 30, and the monitored solenoid valve 30 is a dc solenoid valve. In this embodiment, the first hoop 302 and/or the second hoop 304 are adopted to cooperate with the first bolt 301 and/or the second bolt 303 respectively to detachably fix the apparatus 10 on the monitored solenoid valve 30, and the design of the first hoop 302 and the second hoop 304 not only facilitates adjustment according to the monitored solenoid valves 30 with different diameters, but also does not affect the heat dissipation of the monitored solenoid valve 30, i.e. the hoop cooperates with the bolt to fix the apparatus 10 on the monitored solenoid valve 30, and does not affect the monitored solenoid valve 30 itself.
As shown in fig. 1 and 2, the apparatus 10 includes a sound sensor, a first processing module and a second processing module 106, wherein the sound sensor is connected to the first processing module, and the first processing module is connected to the second processing module 106. The sound sensor may detect the sound of the monitored solenoid valve 30, the first processing module may convert the sound detected by the sound sensor into an electrical signal (e.g., a voltage signal or a current signal) proportional to the sound, and the second processing module 106 may determine whether the monitored solenoid valve 30 completes the operation according to the electrical signal generated by the first processing module, and transmit the operation completion information of the monitored solenoid valve 30 to the control terminal 20. The operation completion information indicates that the monitored solenoid valve 30 has completed the commanded operation or has not completed the commanded operation.
The control terminal 20 can send an action instruction to the monitored electromagnetic valve 30, the monitored electromagnetic valve 30 responds to the action instruction to execute opening or closing operation, sound generated when the monitored electromagnetic valve 30 is opened or closed is detected by the sound sensor, sound waves can enable capacitance inside the sound sensor to change, the first processing module generates a corresponding electric signal according to the capacitance change in the sound sensor, the second processing module judges whether the monitored electromagnetic valve 30 normally executes the opening or closing operation according to the electric signal generated by the first processing module, and sends action completion information of the monitored electromagnetic valve 30 to the control terminal 20, and an operator can timely and accurately know the action completion condition of the monitored electromagnetic valve 30 through the action completion information displayed by the control terminal 20. Particularly, under the condition of jamming failure of the coil or the electromagnetic valve body, whether the direct current electromagnetic valve finishes the action command of the control terminal can be directly judged remotely, and failure diagnosis and processing are facilitated.
In summary, when the monitored electromagnetic valve 30 performs the opening or closing operation, sound is generated, the sound sensor monitors the sound of the action of the monitored electromagnetic valve 30 in real time, the first processing module generates an electrical signal according to the sound detected by the sound sensor, the second processing module determines whether the monitored electromagnetic valve completes the action (opens or closes) according to the electrical signal generated by the first processing module, and sends the action completion information of the monitored electromagnetic valve 30 to the control terminal 20, so as to quickly, intuitively and accurately determine the action of the direct current electromagnetic valve, and facilitate analysis of the running state of the system.
If the coil or the movable iron group of the monitored electromagnetic valve fails, and the monitored electromagnetic valve does not execute the command action, the sound sensor cannot sense the sound wave parameters, the second processing module cannot send out electromagnetic valve action completion information, and the valve position feedback signal of the control system is not changed, so that control room personnel can judge that the electromagnetic valve does not act according to the command.
When the direct-current electromagnetic valve is applied to a fuel loading and unloading system of a high-temperature gas cooled reactor nuclear power plant, if the direct-current electromagnetic valve fails, the time for entering a radiation control area to verify the failure by hearing the sound of the direct-current electromagnetic valve can be reduced, the radiation dose of personnel is reduced, and radiation protection optimization is realized.
In one or more embodiments, the sound sensor includes a plurality, and the first processing module includes a plurality. Each sound sensor can be connected with at least one first processing module, or a plurality of sound sensors are connected with a plurality of first processing modules in a one-to-one correspondence mode. The plurality of sound sensors are arranged to monitor the sound of the action of the monitored electromagnetic valve 30 in real time, and the second processing module 106 performs OR operation on the detected sound, so that when one of the sound sensors fails, the sound sensor can be prevented from working through other sound sensors, and the stability and the service life of the device 10 are ensured.
For example, the number of the sound sensors is 2, and the number of the first processing modules is 2. As shown in fig. 1 and 2, the first acoustic sensor 101 is connected to the first processing module a103, and the second acoustic sensor 102 is connected to the first processing module b 104. The first sound sensor 101 and the second sound sensor 102 both monitor the sound of the operation of the monitored electromagnetic valve 30 in real time, if the first sound sensor 101 and the second sound sensor 102 both work normally, the second processing module 106 performs the determination by using the electric signal generated by the sound detected by the first sound sensor 101 or the second sound sensor 102, and if the first sound sensor 101 works normally and the second sound sensor 102 is damaged, the second processing module 106 performs the determination by using the electric signal generated by the sound detected by the first sound sensor 101.
In one or more embodiments, as shown in fig. 1 and 2, the apparatus 10 further includes a data amplification module 105 and a communication module 107, the data amplification module 105 is connected to the first processing module and the second processing module 106, respectively, and the communication module 107 is connected to the second processing module 106 and the control terminal 20, respectively. The first processing module converts the sound detected by the sound sensor into a corresponding electrical signal, and the data amplification module 105 amplifies the electrical signal generated by the first processing module by a suitable multiple and transmits the amplified electrical signal to the second processing module 106. The second processing module 106 determines whether the monitored electromagnetic valve 30 completes the action according to the amplified electric signal, and sends action completion information to the control terminal 20.
In one or more embodiments, the apparatus 10 further includes a power conversion module 108 and a housing (not shown). The power conversion module 108 may be configured to convert ac high voltage power to dc low voltage power, for example, 220V ac high voltage power to 5V dc low voltage power, to provide power to various electronic components in the device 10, and the various electronic components of the device 10 may be located in the housing to provide protection for the various electronic components. The signal cable (not shown) and the power line (not shown) of the device 10 are wrapped by an insulating wrapping (not shown) for signal and power transmission.
Example 2
Fig. 3 is a flowchart illustrating operation judgment of a monitored solenoid valve based on the apparatus for remotely judging operation of a dc solenoid valve provided in embodiment 1 according to some embodiments of the present disclosure. Although the processes described below include multiple operations that occur in a particular order, it should be clearly understood that the processes may include more or fewer operations that are performed sequentially or in parallel. The method includes the following steps (S101 to S103):
s101, a sound sensor detects the sound of the action of the monitored solenoid valve and transmits the detected sound to a first processing module.
The monitored electromagnetic valve can generate sound when acting, the sound sensor detects the sound of the action of the monitored electromagnetic valve in real time and transmits the detected sound wave parameters to the first processing module.
S102, the first processing module processes the sound detected by the sound sensor, and generates an electric signal to be transmitted to the second processing module.
The first processing module converts the sound detected by the sound sensor into an electric signal corresponding to the sound, and transmits the generated electric signal to the second processing module.
S103, the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal and sends action completion information to the control terminal.
The second processing module judges whether the monitored electromagnetic valve completes the action according to the action instruction or not according to the electric signal generated by the first processing module, and if the second processing module judges that the monitored electromagnetic valve normally completes the action according to the action instruction, the second processing module sends the completed instruction action to the control terminal; if the second processing module judges that the monitored electromagnetic valve does not normally complete the action according to the action instruction, the uncompleted instruction action is sent to the control terminal, and action completion information is displayed on the control terminal, so that the condition of the monitored electromagnetic valve can be known timely and accurately.
In one or more embodiments, the method further includes the steps (S201 to S203) of:
s201, the control terminal sends an action command to the monitored electromagnetic valve.
The control terminal can remotely control the opening or closing of the direct current electromagnetic valve, and when the direct current electromagnetic valve needs to be controlled to be opened or closed, the control terminal sends an action instruction to the monitored electromagnetic valve, and the action instruction is used for controlling the opening or closing of the monitored electromagnetic valve.
S202, the second processing module receives a trigger signal of the action instruction.
And after applying an action instruction to the monitored electromagnetic valve, the control terminal sends a trigger signal corresponding to the action instruction to the second processing module, and the trigger signal is used for controlling the second processing module to execute judgment operation.
And S203, after receiving the trigger signal, the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal, and sends action completion information to the control terminal.
And only after the second processing module receives the trigger signal, the second processing module executes judgment operation, namely, whether the monitored electromagnetic valve completes the action or not is judged based on the electric signal, and action completion information is sent to the control terminal, so that the data processing amount of the second processing module can be reduced. The second processing module performs logical AND operation on the trigger signal and the electric signal, and can more accurately judge the electric signal caused by the sound emitted by the direct current solenoid valve.
In one or more embodiments, determining whether the monitored solenoid valve completes the action based on the electrical signal may include the following steps (S301 to S303):
s301, comparing the electric signal with a preset signal.
The preset signal is an electric signal generated by the first processing module when the monitored electromagnetic valve does not act. Namely, the monitored electromagnetic valve does not act, noise possibly exists around the monitored electromagnetic valve, and an electric signal corresponding to the noise around the monitored electromagnetic valve is generated by using the sound sensor and the first processing module and serves as a preset signal. When the electric signal is greater than the preset signal, executing step S302 to finish the action of the monitored electromagnetic valve; and when the electric signal is equal to the preset signal, executing the step S303, wherein the action of the monitored electromagnetic valve is not finished. And the second processing module can transmit the action completion information of the monitored electromagnetic valve to the control terminal through a signal cable after judging the action completion information of the monitored electromagnetic valve, and display the action completion information of the monitored electromagnetic valve through the human-computer interface.
In one or more embodiments, the method further comprises:
the first processing module sends the generated electric signal to the data amplification module; the data amplification module is used for amplifying the electric signal and sending the amplified electric signal to the second processing module.
In one or more embodiments, the method further comprises:
the second processing module sends the judgment result to the communication module; and the communication module sends the judgment result to the control terminal.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A device for remotely judging the action of a direct current solenoid valve is fixed on a monitored solenoid valve and is characterized by comprising:
the sound sensor is used for detecting the sound of the action of the monitored solenoid valve;
the first processing module is connected with the sound sensor and used for generating an electric signal according to the sound detected by the sound sensor;
and the second processing module is connected with the first processing module and used for judging whether the monitored electromagnetic valve completes the action or not according to the electric signal generated by the first processing module and sending the action completion information to the control terminal.
2. The apparatus of claim 1, wherein said acoustic transducer comprises a plurality, said first processing module comprises a plurality, each said acoustic transducer is connected to at least one said first processing module; or
The plurality of sound sensors are connected with the plurality of first processing modules in a one-to-one correspondence mode.
3. The apparatus of claim 2, wherein the sound sensor comprises 2 and the first processing module comprises 2.
4. The apparatus of any of claims 1-3, wherein the apparatus further comprises:
and the data amplification module is respectively connected with the first processing module and the second processing module and is used for amplifying the electric signal generated by the first processing module and transmitting the amplified electric signal to the second processing module.
5. The apparatus of any of claims 1-4, wherein the apparatus further comprises:
and the communication module is respectively connected with the second processing module and the control terminal, receives the judgment result of the second processing module and sends the action completion information to the control terminal.
6. A method for remotely judging the action of a direct current solenoid valve, which is applied to the device of any one of claims 1 to 5, and is characterized by comprising the following steps:
the sound sensor detects the sound of the action of the monitored solenoid valve and transmits the detected sound to the first processing module;
the first processing module processes the sound detected by the sound sensor, and generates an electric signal to be transmitted to the second processing module;
the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal and sends action completion information to the control terminal.
7. The method of claim 6, wherein the method further comprises:
the control terminal sends an action instruction to the monitored electromagnetic valve;
the second processing module receives a trigger signal of the action instruction;
after receiving the trigger signal, the second processing module judges whether the monitored electromagnetic valve completes the action or not based on the electric signal, and sends action completion information to the control terminal.
8. The method of claim 6 or 7, wherein said determining whether the monitored solenoid valve completes an action based on the electrical signal comprises:
comparing the electric signal with a preset signal; the preset signal is an electric signal generated by the first processing module when the monitored electromagnetic valve does not act;
if the electric signal is greater than a preset signal, the action of the monitored electromagnetic valve is finished;
if the electrical signal is equal to a preset signal, the action of the monitored solenoid valve is not completed.
9. The method of any of claims 6-8, wherein the method further comprises:
the first processing module sends the generated electric signal to a data amplification module;
and the data amplification module amplifies the electric signal and sends the amplified electric signal to the second processing module.
10. The method of any of claims 6-9, wherein the method further comprises:
the second processing module sends the judgment result to the communication module;
and the communication module sends the judgment result to the control terminal.
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| CN202210223190.8A CN114542791A (en) | 2022-03-09 | 2022-03-09 | Device and method for remotely judging action of direct current solenoid valve |
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| CN202210223190.8A CN114542791A (en) | 2022-03-09 | 2022-03-09 | Device and method for remotely judging action of direct current solenoid valve |
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| KR102275195B1 (en) * | 2021-03-15 | 2021-07-09 | 유양에스엔지 주식회사 | Remote valve control device based on sound analysis |
| CN215264481U (en) * | 2021-05-10 | 2021-12-21 | 青海盐湖工业股份有限公司 | Polymerization kettle valve control system based on DCS |
| CN113156922A (en) * | 2021-05-25 | 2021-07-23 | 三门核电有限公司 | AP1000 nuclear-grade electromagnetic valve action parameter diagnosis device and method |
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