CN113476993B - Snow-resisting filtering device, snow-resisting method and locomotive - Google Patents
Snow-resisting filtering device, snow-resisting method and locomotive Download PDFInfo
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- CN113476993B CN113476993B CN202110782951.9A CN202110782951A CN113476993B CN 113476993 B CN113476993 B CN 113476993B CN 202110782951 A CN202110782951 A CN 202110782951A CN 113476993 B CN113476993 B CN 113476993B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
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Abstract
The disclosure relates to the technical field of locomotives, and particularly discloses a snow-resisting filtering device, a snow-resisting method and a locomotive. This hinder snow filter equipment includes filtering chamber and locates filtering chamber's filter core body, the chamber has entry and export, still includes: the first sensor is arranged at the inlet of the filtering device and is used for outputting a first signal when rain and/or snow are detected; the second sensor is arranged at the outlet of the filtering device and used for outputting a second signal when rain and/or snow are detected; the heating module is arranged in a filtering cavity of the filtering device and used for generating heat when a power supply is switched on; the control module is respectively connected with the first sensor, the second sensor and the heating module and used for starting the heating module when the first signal and the second signal are detected so as to control the heating module to heat the filtering chamber to melt snow and reduce or prevent the snow from entering the surface or the inside of an electrical appliance element.
Description
Technical Field
The disclosure relates to the technical field of locomotives, in particular to a snow-resisting filtering device, a snow-resisting method and a locomotive.
Background
The main function of the existing air filter is to purify dust and water drops in air, but not to filter snow in air, so that the snow enters electrical elements along with cooling air. When a large amount of snow enters the surface of the electrical element along with air, faults such as grounding of the electrical element and the like are easily caused.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to overcome the above-mentioned deficiencies of the prior art, and to provide a snow-blocking filter device, a snow-blocking method and a locomotive.
According to one aspect of the present disclosure, there is provided a snow blocking filter device comprising a filter chamber and a filter element disposed in the filter chamber, the chamber having an inlet and an outlet, further comprising:
the first sensor is arranged at the inlet of the filtering device and is used for outputting a first signal when rain and/or snow are detected;
the second sensor is arranged at the outlet of the filtering device and used for outputting a second signal when rain and/or snow are detected;
the heating module is arranged in a filtering cavity of the filtering device and used for generating heat when a power supply is switched on;
the control module is respectively connected with the first sensor, the second sensor and the heating module and is used for starting the heating module when the first signal and the second signal are detected so as to control the heating module to heat the filtering chamber.
Optionally, the temperature sensor is arranged in the filtering chamber, connected with the control module, and used for collecting the current temperature of the filtering chamber and feeding the current temperature back to the control module.
Optionally, the heating module is connected in series with the control module;
the control module is also used for determining a target temperature according to the current temperature when the second signal is detected, and outputting a temperature adjusting signal;
the temperature adjusting module is used for responding to the temperature adjusting signal and adjusting the working temperature of the heating module to the target temperature.
Optionally, a protection circuit is connected in series to a power supply loop of the heating module, and the protection circuit is configured to disconnect the power supply loop when detecting that a current of the power supply loop is greater than or equal to a current threshold.
Optionally, the filter device comprises a plurality of filter elements disposed in the filter chamber;
the heating module comprises a plurality of sub-heating units, and the sub-heating units are arranged corresponding to the filter core bodies.
Optionally, each of the sub-heating units is arranged in parallel.
Optionally, a through hole extending along the length direction is formed in the side wall of the filter core body, the through hole is isolated from the inner cavity of the filter core body, and the sub-heating unit is arranged in the through hole.
Optionally, the control module is further configured to turn off the heating module when the first signal is detected to disappear.
According to another aspect of the present disclosure, there is also provided a filtering device snow blocking method, performed by a control module, the method comprising:
detecting whether the first sensor and the second sensor have output signals;
if the first sensor is detected to output the first signal and the second sensor is detected to output the second signal, the heating module is started to control the heating module to heat the filtering chamber of the filtering device.
According to another aspect of the present disclosure, there is also provided a locomotive including the snow blocking filter device according to any embodiment of the present disclosure.
This is openly through the entry at air cleaner, export set up first sensor, second sensor, by control module according to the output signal automatic judgement climatic condition of first sensor and second sensor to when determining snowing weather, automatic start heating module work is with melting snow, thereby reduces or avoids snow to get into electrical components surface or inside, stops to make electrical components produce the trouble because of snow, promotes electrical components's security and reliability.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It should be apparent that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived by those of ordinary skill in the art without inventive effort.
FIG. 1 is a block diagram of the structure of the filtering device of the present disclosure;
FIG. 2 is a cross-sectional view of a filtration device of the present disclosure;
FIG. 3 is a schematic view of a filter element according to the present disclosure;
fig. 4 is a flow chart of a snow blocking method of the snow blocking filter device according to the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting as to the number of their objects.
The main functions of the existing air filter are to purify dust and water drops in air and not to filter snow in the air, and the main reason is that the snow land is light and cannot generate centrifugal inertia force required by filtering, so that a large amount of snow enters the surface of an electrical element along with air in snowy weather, and the electrical element is grounded. The problem that present air cleaner can not hinder snow is solved to this disclosed scheme, mainly increases sleet sensor around air cleaner, judges weather condition by the controller is automatic to when determining snowing weather, automatic start heating equipment work is with melting snow, thereby reduces or avoids snow to get into electrical components surface or inside, stops to make electrical components produce the trouble because of snow, promotes electrical components's security and reliability, the above principal that is this disclosed scheme. The following detailed description of the disclosed embodiments refers to the accompanying drawings.
The disclosed embodiments provide a snow blocking filter device that can be mounted on a locomotive and can automatically turn on the snow filtering function when the current snowing weather is detected automatically. Fig. 1 is a block diagram illustrating the structure of the filtering apparatus, which may include a filtering chamber 100 and a filter core disposed in the filtering chamber 100, the chamber having an inlet and an outlet, and may further include: a first sensor 10 provided at an inlet of the filtering device for outputting a first signal when rain and/or snow is detected; a second sensor 20 provided at an outlet of the filtering device for outputting a second signal when rain and/or snow are detected; a heating module 30 provided in the filtering chamber 100 of the filtering apparatus for generating heat when the power supply 40 is turned on; and the control module 50 is connected with the first sensor 10, the second sensor 20 and the heating module 30 respectively and is used for starting the heating module 30 to control the heating module 30 to heat the filtering chamber 100 when the first signal and the second signal are detected.
The filter device of the exemplary embodiment may be an air filter of a locomotive, which may be obtained by adding a sensor, a heating module 30 and configuring a control module 50 on the basis of an existing air filter. The first sensor 10 and the second sensor 20 are both rain and snow sensors, which may generate an output signal when rain and/or snow is detected, and not output a signal when rain or snow is not detected. The first sensor 10 is arranged at the inlet of the filtering device, the second sensor 20 is arranged at the outlet of the filtering device, the control module 50 can automatically judge the current climate condition by combining the output signal of the first sensor 10 and the output signal of the second sensor 20, and the current climate condition is snowy when the first sensor 10 and the second sensor 20 simultaneously output signals; the rainy day is when the first sensor 10 generates an output signal and the second sensor 20 does not generate an output signal. If the snow is snowy, the control module 50 starts the heating module 30 to realize the snow blocking function of the filtering device. This process is further described below.
In the case of snowy weather, the impurities in the cooling air entering from the inlet of the filtering device include not only dust particles, water droplets and snow, but also the filtering device utilizes the principle of centrifugal inertia force to filter the impurities, which can effectively filter the heavier dust and water droplets, but because the snow is lighter and cannot generate the centrifugal inertia force required by the filtering, the filtering device cannot effectively filter the snow in the air, i.e. the snow entering from the inlet of the filtering device can pass through the outlet of the filtering device. Based on this characteristic, by providing the first sensor 10 at the inlet of the filtering apparatus and the second sensor 20 at the outlet of the filtering apparatus, the control module 50 may determine whether it is snowing weather at present by combining the output signal of the first sensor 10 and the output signal of the second sensor 20. Specifically, when rain and/or snow enters from the inlet, the first sensor 10 outputs a first signal, that is, the control module 50 may determine that the weather is rainy day or snowy day when detecting that the first sensor 10 outputs the first signal; if the control module 50 detects that the second sensor 20 outputs the second signal, the control module 50 may determine that the snow is in the snow day, the control device starts the heating module 30 at this time, the heating module 30 generates heat in the filtering chamber 100 of the filtering device, and heats the snow entering from the inlet, so that the snow is melted into water and then filtered through the action of the filtering device, thereby realizing the snow blocking function. In the process, if the control module 50 continuously detects that the first sensor 10 outputs the first signal, which indicates that snow is always snowing, the control module 50 controls the heating module 30 to continuously work, so as to realize continuous snow blocking. If the control module 50 detects that the first sensor 10 is no longer outputting the first signal, indicating that the snow is stopped, the control module 50 controls the heating module 30 to stop heating.
In the exemplary embodiment, the control module 50 may be a programmable logic controller PLC, and of course, in other exemplary embodiments, the control module 50 may also be another type of controller.
It should be understood that the number of the first sensor 10 and the second sensor 20 in the present exemplary embodiment may be more than one, which may correspond to the number of inlets, outlets of the filter device, and when the filter device comprises more than one inlet and/or more than one outlet, respectively, the number of the first sensor 10 and/or the second sensor 20 may be more than one. When the number of the first sensors 10 and the second sensors 20 is more than one, the control module 50 may determine that the snow weather is present when detecting that any pair of the first sensors 10 and the second sensors 20 simultaneously generates the output signals. Of course, in other exemplary embodiments, when the number of the first sensor 10 and the second sensor 20 is more than one, the control module 50 may determine whether it is snowy weather according to other determination logics.
As shown in fig. 2, which is a cross-sectional view of the filtering apparatus of the present disclosure, the filtering apparatus may include a plurality of filter core bodies 101, and the heating module 30 in the present exemplary embodiment may include a plurality of sub-heating units 31, the plurality of sub-heating units 31 being provided in correspondence with the plurality of filter core bodies 101. Through corresponding with a plurality of filter core bodies 101 and setting up a plurality of sub-heating unit 31, on the one hand can increase the heat that produces in the unit interval, help improving the speed of melting to snow, on the other hand a plurality of sub-heating unit 31 evenly lay in filtering cavity 100 to soaking filtering cavity 100 helps the make full use of heat energy. So that the filtering apparatus can rapidly melt the snow entering the filtering chamber 100 to perform the snow blocking function. The sub-heating unit 31 in the present exemplary embodiment may be a commonly used resistance heater, and of course, in other exemplary embodiments, the sub-heating unit 31 may also be other types of heaters.
The filter device in the present exemplary embodiment can be improved based on the existing air filter, as shown in fig. 3, which is a schematic structural diagram of a filter core body provided by the present disclosure, the filter core body 101 has a certain length, the perforations 102 extending in the length direction can be provided on the side wall of the filter core body 101, the width and thickness of the perforations 102 are adapted to the width and thickness of the sub-heating units 31, and the sub-heating units 31 are provided and fixed in the perforations 102, so that the filter core body 101 can heat and melt the entering snow through the sub-heating units 31, and because the perforations 102 are provided in a manner of being isolated from the inner cavity of the filter core body 101, the sub-heating units 31 can be effectively isolated from the snow water, and the sub-heating units 31 can be prevented from being damaged due to the entering of the snow water into the sub-heating units 31. In the present exemplary embodiment, the blocking structures may be disposed at both ends of the through hole 102, and after the sub-heating unit 31 is placed in the through hole 102, the blocking structures at both ends of the through hole 102 may limit the sub-heating unit 31 therein, so that the sub-heating unit 31 may be prevented from moving. Alternatively, the through hole 102 penetrates only one end of the filter element body 101, so that a single-end open cavity is formed in the side wall of the filter element body 101, and the sub-heating unit 31 is enclosed in the through hole 101 by providing an end cover at the open end. Of course, in other exemplary embodiments, the sub-heating unit 31 may be fixed in the through hole 102 in other manners. Furthermore, it should be understood that the length of the sub-heating unit 31 may be comparable to the length of the filter core body 101, i.e. extending from one end to the other, or may also be smaller than the length of the filter core body 101.
As shown in fig. 1, in the present exemplary embodiment, the sub-heating units 31 are arranged in parallel, that is, the sub-heating units 31 are connected in parallel and then connected to the power supply 40. Therefore, the independent work of each sub-heating unit 31 can be ensured, even if one or more sub-heating units 31 fail and do not work, other sub-heating units 31 can still work normally, and the condition that the whole heating module 30 stops working due to the failure of one sub-heating unit 31 can be avoided.
In the present exemplary embodiment, the heating module 30 may employ independent power supply. The power supply line of the power supply 40 can enter the embedded part of the filter core body 101 through the end part of the filter core body 101 and then is connected with each sub-heating unit 31, and the end part is provided with a baffle plate to block and isolate the power supply line.
As shown in fig. 1, in the present exemplary embodiment, a protection circuit 60 is connected in series to the power supply loop of the heating module 30, and the protection circuit 60 is configured to disconnect the power supply loop when detecting that the current of the power supply loop is greater than or equal to a current threshold value. By providing the protection circuit 60 in the power supply circuit of the heating module 30, it is possible to protect the normal operation of the power supply 40 and even the entire filter device in the event of a short-circuit failure of the heating module 30. The protection circuit 60 in the present exemplary embodiment may be a fuse, and of course, in other exemplary embodiments, the protection circuit 60 may also be other circuit protection devices.
Given that the heat generated by the heating module 30 is not necessarily able to completely melt the snow entering the filtering device, the present exemplary embodiment also provides temperature feedback and regulation means to control the temperature of the heating module 30. The temperature feedback and regulation device is further described below.
As shown in fig. 1, in the exemplary embodiment, the filtering apparatus further includes a temperature sensor 70 disposed in the filtering chamber 100 and connected to the control module 50 for collecting the current temperature of the filtering chamber 100 and feeding back the current temperature to the control module 50. A temperature sensor 70 may be provided in the filtering chamber 100 to collect the temperature of the filtering chamber 100 in real time. The temperature sensor 70 is connected to the control module 50 so that the control module 50 can obtain real-time temperature of the filter chamber 100 in real time. In other exemplary embodiments, the temperature sensor 70 may also be disposed in close proximity to the sub-heating unit 31 to acquire the real-time temperature of the sub-heating unit 31.
It should be understood that the number of the temperature sensors 70 in the present exemplary embodiment may be more than one, and when a plurality of temperature sensors 70 are provided, the control module 50 may determine an average temperature based on the temperature values of the plurality of temperature sensors 70, and use the average temperature as a basis for adjusting the operating temperature of the heating module 30. Alternatively, in other exemplary embodiments, the temperature sensor 70 may be disposed corresponding to the sub-heating units 31 in the heating module 30, that is, each sub-heating unit 31 has a corresponding temperature sensor 70 to acquire the temperature of the heating area thereof, so that the control module 50 may adjust the operating temperature of the sub-heating unit 31 at the corresponding position according to the temperature fed back by the temperature sensor 70, that is, independently adjust the operating temperature of each sub-heating unit 31.
As shown in fig. 1, in the exemplary embodiment, the filtering apparatus may further include a temperature adjustment module 80, the temperature adjustment module 80 being connected in series between the heating module 30 and the control module 50; the control module 50 is further configured to determine a target temperature according to the current temperature when the second signal is detected, and output a temperature adjustment signal; the temperature adjustment module 80 is configured to adjust the operating temperature of the heating module 30 to a target temperature in response to the temperature adjustment signal. Wherein the temperature adjustment module 80 performs specific temperature adjustments to the heating module 30 in response to the temperature adjustment signal of the control module 50. Upon acquiring the first and second signals, the control module 50 may determine that it is snowing weather, and thus the control module 50 may activate the heating module 30 to begin heating. After a period of heating, if the second sensor 20 still outputs the second signal, it indicates that there is still snow flowing out of the filter device, i.e., the filter device does not completely filter out the snow, the control module 50 determines a target temperature based on the current temperature output by the temperature sensor 70, and outputs a temperature adjusting signal to the temperature adjusting module 80, the temperature adjusting module 80 adjusts the working temperature of the heating module 30 to the target temperature in response to the temperature adjusting signal, if the second sensor 20 still outputs the second signal, the control module 50 repeats the temperature adjusting process, and controls the temperature adjusting module 80 to continuously adjust the working temperature of the heating module 30 until the first sensor 10 outputs the first signal and the second sensor 20 does not output the second signal any more, the control module 50 determines that the heating temperature at this time is proper, and the filtering device can play a role in snow resistance.
It is understood that in other exemplary embodiments, the temperature adjustment module 80 may also employ a PID controller, and in this case, the temperature sensor 70 may be connected to the PID controller to directly feed back the current temperature of the heating module 30 to the PID controller. The PID controller sets the temperature value of the heating module 30, when the filtering device is started, at intervals (such as 1 minute, 2 minutes, 3 minutes and the like), the first sensor 10 still outputs a first signal and the second sensor 20 still outputs a second signal, which indicates that snow still enters an electric appliance element through the air filter, and indicates that the temperature of the heating module 30 is not enough to melt the snow, at the moment, the PID controller can adjust the temperature value of the heating module 30, and the temperature is increased progressively from the originally set temperature as required (such as 1k, 2k and the like), so that the snow blocking function of the filtering device is realized. Finally, when the first sensor 10 outputs the first signal and the second sensor 20 no longer outputs the second signal, the PID controller judges that the working temperature of the heating module 30 is appropriate, and the filtering device realizes the snow blocking function.
It should be understood that the temperature value determined by the control module 50 or the PID controller in this exemplary embodiment cannot exceed the maximum allowable heating temperature of the heating module 30. If the maximum heating temperature of the temperature sensor 70 is 60 deg.C, the target temperature determined by the control module 50 or PID controller cannot exceed 60 deg.C.
As shown in fig. 1, in other exemplary embodiments, the snow blocking filter device further includes a human-machine interaction module 90, the human-machine interaction module 90 is connected to the control module 50 and the temperature adjustment module 80, and parameters such as a starting temperature of the heating module 30, a detection interval time, a warming interval temperature, an automatic control, a manual control, and the like can be set through the human-machine interaction module 90. It should be understood that, when the control module 50 has the human-machine interaction function, the human-machine interaction function of the control module 50 can also be used to implement the above-mentioned function of the human-machine interaction module 90, and an additional human-machine interaction module 90 is not required. The human-machine interaction module 90 may be a PLC sub-module including a human-machine interaction interface, such as when the control module 50 is a PLC controller.
It should be understood that the control module 50 described in the exemplary embodiment may be set to a manual mode, such as the control module 50 is set to a manual control mode through the human-machine interaction module 90, in which case, a user may manually start the operation of the heating module 30, which may be typically the case that, in the case of icing, the user may start the operation of the heating module 30, the ice covered on the surface of the filter core is melted by the heat generated by the heating module 30, and the ice water is filtered by the centrifugal action of the filtering device, so that the filtering device has the deicing function.
Fig. 4 is a flowchart of a snow blocking method of a snow blocking filter device provided by the present disclosure, which is applicable to the snow blocking filter device according to any of the above embodiments and is executed by a control module, and the method includes the following steps:
s410, detecting whether the first sensor and the second sensor have output signals or not;
and S420, if the first sensor is detected to output the first signal and the second sensor is detected to output the second signal, starting the heating module to control the heating module to heat the filtering chamber of the filtering device.
In step S410, the control module determines whether the current day is snowy by detecting whether the first sensor and the second sensor have output signals. Specifically, the first sensor and the second sensor are both rain and snow sensors that generate an output signal when snow or rain is detected. When the first sensor outputs the first signal and the second sensor outputs the second signal, indicating that the weather is snowing; when the first sensor outputs the first signal and the second sensor does not output the second signal, the weather is rainy; when the first sensor and the second sensor do not output signals, weather except rain and snow at the moment is indicated.
In step S420, the control module determines whether the heating module needs to be activated according to whether the first sensor and the second sensor have output signals. Specifically, when first sensor and second sensor all produced output signal, control module judges that this moment is snowing weather, and control module starts the heating module and begins the heating to through heating module production heat in order to melt the snow that gets into filter equipment, and filter the snow water that will melt through filter equipment's centrifugal action, thereby realize filter equipment's the function of hindering the snow.
In addition, in the heating process, the control module also acquires the temperature of the filtering chamber of the filtering device in real time, and feeds back and adjusts the heating temperature of the heating module, so that the heating module can fully melt snow entering the filtering device, and the snow blocking function of the filtering device is realized. For example, when the control module detects that the second sensor outputs the second signal, the control module determines a target temperature according to the current temperature and outputs a temperature adjusting signal; the temperature adjusting module responds to the temperature adjusting signal and adjusts the working temperature of the heating module to the target temperature. For the feedback adjustment of the temperature, reference is made to the description of the above embodiments of the apparatus, and the description thereof is omitted here.
It should be appreciated that the filtering device snow-blocking method provided by the exemplary embodiment has the advantages described in any of the above embodiments.
The present disclosure also provides a locomotive comprising the snow blocking filter apparatus of any of the embodiments described above. The present exemplary embodiment thus also includes the advantageous effects described in any of the embodiments described above.
It should be noted that although the steps of the snow arrest method of the filter apparatus of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order or that all of the depicted steps must be performed to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken into multiple step executions, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (6)
1. A snow-blocking filter device, comprising a filter chamber and a plurality of filter elements disposed in the filter chamber, the chamber having an inlet and an outlet, further comprising:
the first sensor is arranged at the inlet of the filtering device and is used for outputting a first signal when rain and/or snow are detected;
the second sensor is arranged at the outlet of the filtering device and is used for outputting a second signal when rain and/or snow are detected;
the heating module is arranged in the filtering cavity of the filtering device and used for generating heat when a power supply is switched on;
the control module is respectively connected with the first sensor, the second sensor and the heating module, and is used for starting the heating module to control the heating module to heat the filtering chamber when detecting the first signal and the second signal, and closing the heating module when detecting that the first signal disappears;
the heating module comprises a plurality of sub-heating units, the sub-heating units are arranged corresponding to the filter core bodies, and the sub-heating units are arranged in parallel;
the lateral wall of the filter element body is provided with a through hole extending along the length direction, the through hole is isolated from the inner cavity of the filter element body, and the sub-heating unit is arranged in the through hole.
2. A snow-resistant filter arrangement as claimed in claim 1, further comprising a temperature sensor disposed within the filter chamber and connected to the control module for acquiring a current temperature of the filter chamber and feeding the current temperature back to the control module.
3. The snow blocking filter apparatus of claim 2, further comprising a temperature conditioning module connected in series between the heating module and the control module;
the control module is also used for determining a target temperature according to the current temperature when the second signal is detected and outputting a temperature adjusting signal;
the temperature adjusting module is used for responding to the temperature adjusting signal and adjusting the working temperature of the heating module to the target temperature.
4. A snow-resistant filter device as claimed in claim 1, characterized in that a protection circuit is connected in series with the power supply circuit of said heating module, said protection circuit being adapted to disconnect said power supply circuit when it is detected that the current of said power supply circuit is greater than or equal to a current threshold value.
5. A snow-arresting filtering device, characterized in that it is applied to a snow-arresting filtering device according to any one of claims 1 to 4, said method being performed by a control module, said method comprising:
detecting whether the first sensor and the second sensor have output signals or not;
and if the first sensor is detected to output a first signal and the second sensor is detected to output a second signal, starting the heating module to control the heating module to heat the filtering chamber of the filtering device.
6. A locomotive comprising a snow-arresting filtering device according to any one of claims 1 to 4.
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| CN202110782951.9A CN113476993B (en) | 2021-07-12 | 2021-07-12 | Snow-resisting filtering device, snow-resisting method and locomotive |
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| CN202110782951.9A CN113476993B (en) | 2021-07-12 | 2021-07-12 | Snow-resisting filtering device, snow-resisting method and locomotive |
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| CN113476993B true CN113476993B (en) | 2022-07-26 |
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| BR102014024967A2 (en) * | 2014-10-06 | 2016-05-24 | Carlos Eduardo Coelho Ferreira | filter |
| KR101688037B1 (en) * | 2015-05-19 | 2017-01-02 | 공주대학교 산학협력단 | Heating apparatus and method for fuel filter |
| CN206770662U (en) * | 2017-05-25 | 2017-12-19 | 浙江万安科技股份有限公司 | A kind of band heater automatic drain valve |
| CN208193896U (en) * | 2018-03-20 | 2018-12-07 | 南京老山暖通设备有限公司 | A kind of snow defence strainer |
| US10982629B2 (en) * | 2019-01-30 | 2021-04-20 | Volvo Car Corporation | Vehicle intake air heater |
| CN111775856B (en) * | 2020-08-05 | 2021-04-23 | 王国灿 | Navigator supporting seat with automobile glass defogging function |
| CN112942098A (en) * | 2021-03-31 | 2021-06-11 | 南京威日通电子科技有限公司 | Monitoring equipment with snow removing function |
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2021
- 2021-07-12 CN CN202110782951.9A patent/CN113476993B/en active Active
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