Locomotive air filtering system self-cleaning device and self-cleaning method
By designing a self-cleaning device in the locomotive air filtration system, using a ventilator to increase the negative pressure of the dust outlet and automatically start the ventilator, the problem of dust entering the rear-end electrical components is solved, and the effect of reducing the failure rate and extending the maintenance cycle is achieved.
Patent Information
- Application Number
- CN202510224552.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-05-13
AI Technical Summary
When the locomotive air filtration system is insufficiently prepared, it is easy for dust to enter the rear-end electrical components, increasing the failure rate.
A locomotive air filtration system self-cleaning device is designed, including an air filter and a ventilator. The ventilator increases the negative pressure of the air filter dust discharge port, and combines the monitoring mechanism and controller to automatically start the ventilator to compensate for the dust discharge, when the dust reaches a certain threshold.
Effectively remove dust at the dust discharge port of the air filter, reduce the risk of secondary pollution of dust, reduce the failure rate of electrical components, and extend the maintenance and maintenance cycle of the air filtration system.
Smart Images
Figure CN119971657A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of railway locomotives, and in particular to a self-cleaning device and a self-cleaning method for a locomotive air filtration system. Background Art
[0002] With the rapid development of the economy, the mileage, grade and number of railways are increasing year by year, while the maintenance time of the locomotive depot is shortened. The maintenance of the air filtration system has become time-sensitive, heavy, and has increased maintenance costs. Insufficient maintenance of the air filtration system can easily lead to dust entering the electrical components at the rear end, resulting in a higher failure rate of the electrical components. Summary of the invention
[0003] The present invention provides a self-cleaning device and a self-cleaning method for a locomotive air filter system, which can remove dust at a dust outlet of an air filter, reduce the risk of secondary pollution caused by accumulated dust, and reduce the failure rate of electrical components.
[0004] According to one aspect of the present disclosure, a self-cleaning device for a locomotive air filtration system is provided, comprising an air filter and a ventilator; the ventilator is disposed adjacent to a dust exhaust port of the air filter, and the ventilator is used to increase the negative pressure at the dust exhaust port of the air filter.
[0005] In an exemplary embodiment of the present disclosure, the self-cleaning device of the locomotive air filtration system further includes a monitoring mechanism, which is disposed adjacent to the dust exhaust port of the air filter and is used to obtain the amount of dust at the dust exhaust port of the air filter.
[0006] In an exemplary embodiment of the present disclosure, the monitoring mechanism includes a position sensor, which is arranged adjacent to the dust exhaust port of the air filter. The position sensor is used to send a first signal when the dust height at the dust exhaust port of the air filter reaches a first height threshold, and the first signal is used to start the ventilator.
[0007] In an exemplary embodiment of the present disclosure, the locomotive air filtration system self-cleaning device also includes a controller, which is communicatively connected to the position sensor and the ventilator; the controller is used to generate a first dust removal signal in response to a first signal, and the ventilator is used to start in response to the first dust removal signal.
[0008] In an exemplary embodiment of the present disclosure, the position sensor is used to send a second signal when the dust height at the dust outlet of the air filter is lower than a second height threshold, and the second signal is used to shut down the ventilator.
[0009] In an exemplary embodiment of the present disclosure, the controller is used to generate a second dust exhaust signal in response to the second signal, and the ventilator is used to shut down in response to the second dust exhaust signal.
[0010] In an exemplary embodiment of the present disclosure, the controller is integrated with a wireless communication module, and the wireless communication module is used to upload the working status data and fault codes of the ventilator to the locomotive control system.
[0011] In an exemplary embodiment of the present disclosure, a PTC heating element is embedded in the motor winding of the ventilator, and the PTC heating element is used to automatically start when the ambient temperature is lower than 5°C.
[0012] In an exemplary embodiment of the present disclosure, the air filter is a cyclone air filter.
[0013] According to another aspect of the present disclosure, a self-cleaning method for a locomotive air filter system is provided, for performing self-cleaning using any of the above-mentioned self-cleaning devices for a locomotive air filter system, the method comprising:
[0014] Determine whether the dust removal conditions are met;
[0015] When the dust exhaust conditions are met, start the ventilator to exhaust dust from the dust exhaust port of the air filter;
[0016] Among them, the dust exhaust conditions include at least one of the following conditions:
[0017] The accumulated working time of the air filter since the last dust removal reaches the first time;
[0018] The dust height at the dust outlet of the air filter reaches a first height threshold;
[0019] When the locomotive passes through a long tunnel section.
[0020] The self-cleaning device of the locomotive air filtration system disclosed in the present invention can utilize a ventilator arranged adjacent to the dust exhaust port of the air filter to increase the negative pressure at the dust exhaust port of the air filter. When dust accumulates at the dust exhaust port of the air filter, the dust exhaust port of the air filter may not be able to remove the dust in time. Compensatory dust removal is performed by the ventilator, which can prevent the accumulated dust from reversely entering the air filter and causing secondary pollution to cooling components such as traction motors and auxiliary filter cabinets, thereby reducing the failure rate of electrical components.
[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.
[0023] Figure 1 It is a schematic diagram of an exemplary embodiment of the self-cleaning device of the motorcycle air filtration system disclosed in the present invention.
[0024] Figure 2 for Figure 1 A magnified schematic diagram of area A in the middle.
[0025] Description of reference numerals:
[0026] 1. Air filter; 2. Ventilator; 3. Position sensor; 4. Controller. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.
[0028] Unless otherwise specified or explained, the technical terms or scientific terms used in the present disclosure shall have the common meanings understood by people with ordinary skills in the field to which the present disclosure belongs. The terms "one", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to indicate an open-ended inclusion and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms "first" and "second" are used only as labels and are not used to limit the quantity, importance or order of their objects.
[0029] The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a movable connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.
[0030] The “Part A is arranged on Part B” mentioned in the present disclosure may mean that Part A is directly connected to Part B, or Part A may be arranged on Part C, and Part C may be arranged on Part B.
[0031] A “communication connection” can be a wired communication connection or a wireless communication connection, and can be direct communication or indirect signal connectivity through an intermediate medium.
[0032] According to one aspect of the present disclosure, a self-cleaning device for a locomotive air filter system is provided, referring to Figure 1 As shown, the self-cleaning device of the locomotive air filtration system includes an air filter 1 and a ventilator 2; the ventilator 2 is arranged adjacent to the dust exhaust port of the air filter 1, and the ventilator 2 is used to increase the negative pressure of the dust exhaust port of the air filter 1.
[0033] The self-cleaning device of the locomotive air filtration system disclosed in the present invention can utilize the ventilator 2 arranged adjacent to the dust exhaust port of the air filter 1 to increase the negative pressure at the dust exhaust port of the air filter 1. When dust accumulates at the dust exhaust port of the air filter 1, the dust exhaust port of the air filter may not be able to remove the dust in time. The ventilator 2 is used to compensate for the dust removal, which can prevent the accumulated dust from entering the air filter in reverse and causing secondary pollution to cooling components such as traction motors and auxiliary filter cabinets, thereby reducing the failure rate of electrical components.
[0034] Specifically, the ventilator 2 can be manually turned on by a locomotive crew, a driver, a maintenance section staff, etc. For example, after a locomotive crew, a driver, or a maintenance section staff observes dust accumulation at the dust outlet of the air filter 1, the ventilator 2 can be manually turned on to compensate for dust discharge.
[0035] In an exemplary embodiment of the present disclosure, the self-cleaning device of the locomotive air filtration system further includes a monitoring mechanism, which is disposed adjacent to the dust outlet of the air filter 1 and is used to obtain the amount of dust at the dust outlet of the air filter 1. It will be understood by those skilled in the art that the adjacent arrangement of component A and component B described in the present disclosure may refer to a partial structure of component A being adjacent to a partial structure of component B, rather than all structures of component A being adjacent to all structures of component B. For example, the adjacent arrangement of the ventilator 2 and the dust outlet of the air filter 1 may refer to an air outlet of the ventilator 2 being adjacent to the dust outlet of the air filter 1, while other parts of the ventilator 2, such as the motor winding, may not be adjacent to the dust outlet of the air filter 1.
[0036] Exemplarily, the monitoring mechanism may include a position sensor 3, referring to Figure 1 , Figure 2 As shown, the position sensor 3 is arranged adjacent to the dust exhaust port of the air filter 1 . Figure 2 A possible position of the position sensor 3 is shown. The position sensor 3 is used to send a first signal when the dust height at the dust outlet of the air filter 1 reaches a first height threshold, and the first signal is used to start the ventilator 2.
[0037] For example, the locomotive air filtration system self-cleaning device also includes a controller 4, which is in communication with the position sensor 3 and the ventilator 2; the controller 4 is used to generate a first dust removal signal in response to a first signal, and the ventilator 2 is used to start in response to the first dust removal signal.
[0038] During the operation of the air filter 1, dust is discharged from the dust outlet and accumulated at the dust outlet. The position sensor 3 can monitor the height of the accumulated dust. When the dust accumulates to a certain height, for example, the dust accumulates to the first height threshold and is about to cause secondary pollution, the position sensor 3 can send a first signal. The controller 4 can respond to the first signal and generate a first dust removal signal. The ventilator 2 can start in response to the first dust removal signal, perform compensatory dust removal at the dust outlet, and quickly discharge the accumulated dust to achieve self-cleaning. The position sensor 3 can be set at a position of the first height threshold from the bottom of the dust outlet where the dust accumulates. When the position sensor 3 detects dust, it means that the dust has accumulated to the first height threshold, and further accumulation may cause secondary pollution.
[0039] Exemplarily, the position sensor 3 may include a photoelectric sensor group, and the photoelectric sensor group may include four groups of infrared transmitting-receiving tubes arranged in a cross shape.
[0040] Exemplarily, the monitoring mechanism may include a pressure sensor. The pressure sensor is arranged adjacent to the dust outlet of the air filter 1. The pressure sensor is used to send a first signal when the dust weight at the dust outlet of the air filter 1 reaches a first weight threshold, and the first signal can be used to start the ventilator 2.
[0041] For example, the locomotive air filtration system self-cleaning device also includes a controller 4, which is in communication with the pressure sensor and the ventilator 2; the controller 4 is used to generate a first dust removal signal in response to a first signal, and the ventilator 2 is used to start in response to the first dust removal signal.
[0042] During the operation of the air filter 1, dust is discharged from the dust outlet and accumulated at the dust outlet. The pressure sensor can monitor the weight of the accumulated dust. When the dust accumulates to a certain extent, for example, when the dust accumulates to a first weight threshold and is about to cause secondary pollution, the pressure sensor can send a first signal. The controller 4 can respond to the first signal and generate a first dust removal signal. The fan 2 can start in response to the first dust removal signal, perform compensation dust removal at the dust outlet, and quickly discharge the accumulated dust to achieve self-cleaning. The pressure sensor can be arranged at the bottom of the dust outlet where the dust accumulates, so as to monitor the weight of the dust accumulated at the dust outlet.
[0043] In some exemplary embodiments of the present disclosure, the monitoring mechanism may include other types of sensors as long as they can monitor the amount of dust in the dust outlet of the air filter 1. The monitoring mechanism is used to send a first signal when the amount of dust in the dust outlet of the air filter 1 reaches a first threshold value (e.g., a first height threshold value, a first weight threshold value), and the controller 4 is communicatively connected with the monitoring mechanism; the controller 4 is used to generate a first dust exhaust signal in response to the first signal, and the ventilator 2 is used to start in response to the first dust exhaust signal.
[0044] Exemplarily, the ventilator 2 can also be manually turned off by a locomotive crew, a driver, a maintenance section staff, etc. For example, after the locomotive crew, the driver, or the maintenance section staff observes that the dust at the dust outlet of the air filter 1 is basically removed, the ventilator 2 can be manually turned off.
[0045] In an exemplary embodiment of the present disclosure, the position sensor 3 is used to send a second signal when the dust height at the dust outlet of the air filter 1 is lower than a second height threshold, and the second signal is used to shut down the ventilator 2 .
[0046] Exemplarily, the controller 4 is used to generate a second dust exhaust signal in response to the second signal, and the ventilator 2 is used to shut down in response to the second dust exhaust signal.
[0047] During the operation of the ventilator 2, the dust height at the dust outlet of the air filter 1 gradually decreases. When the dust height is reduced to a safety height threshold, i.e., a second height threshold, the position sensor 3 can send a second signal to the controller 4. The ventilator 2 stops ventilation in response to a second dust exhaust signal generated by the controller 4 corresponding to the second signal, thereby completing a self-cleaning working cycle.
[0048] In an exemplary embodiment of the present disclosure, the monitoring mechanism includes a pressure sensor. The pressure sensor is used to send a second signal when the dust weight at the dust discharge port of the air filter 1 is lower than a second weight threshold, and the second signal is used to shut down the ventilator 2. The controller 4 is used to generate a second dust discharge signal in response to the second signal, and the ventilator 2 is used to shut down in response to the second dust discharge signal.
[0049] During the operation of the ventilator 2, the dust at the dust outlet of the air filter 1 gradually decreases and the weight gradually decreases. When the dust weight is reduced to a safe weight threshold, i.e., a second weight threshold, the pressure sensor can send a second signal to the controller 4. The ventilator 2 stops ventilation in response to the second dust exhaust signal generated by the controller 4 corresponding to the second signal, thus completing a self-cleaning working cycle.
[0050] In some exemplary embodiments of the present disclosure, the monitoring mechanism may include other types of sensors as long as they can monitor the dust amount at the dust outlet of the air filter 1. The monitoring mechanism is used to send a second signal when the dust amount at the dust outlet of the air filter 1 is lower than a second threshold value (e.g., a first height threshold value, a first weight threshold value), and the controller 4 is communicatively connected with the monitoring mechanism; the controller 4 is used to generate a second dust exhaust signal in response to the second signal, and the ventilator 2 is used to stop working in response to the second dust exhaust signal.
[0051] In an exemplary embodiment of the present disclosure, the controller 4 is integrated with a wireless communication module, which is used to upload the working status data and fault codes of the ventilator 2 to the locomotive control system. Specifically, during the operation or maintenance of the locomotive, the working status data of the ventilator 2, such as working time, temperature, power, fan speed, etc., and the fault codes generated during the operation can be uploaded to the locomotive control system through the wireless communication module. Exemplarily, the locomotive crew, driver, maintenance section staff, etc. can see the working status data and fault codes of the ventilator 2 on the locomotive center console.
[0052] In an exemplary embodiment of the present disclosure, a PTC heating element is embedded in the motor winding of the ventilator 2. The PTC heating element can be automatically activated when the ambient temperature is lower than 5°C. For example, during the operation of a locomotive, a large geographical range is often covered, and the operating temperature span of the ventilator 2 may be large. The PTC heating element can heat the ventilator 2 to widen the operating temperature range of the ventilator 2.
[0053] In an exemplary embodiment of the present disclosure, the air filter 1 is a cyclone air filter 1. The air filter 1 may include a filter housing, on which a dusty air inlet, a clean air outlet, and a dust exhaust port are provided. Exemplarily, the dusty air inlet and the dust exhaust port may be provided on the same side of the filter housing, and the clean air outlet may be provided on the side of the filter housing opposite to the dusty air inlet and the dust exhaust port. Exemplarily, the clean air outlet may be connected to a cooling component at the rear end of the air filtration system, so that the clean air outlet enters the rear end for cooling.
[0054] According to another aspect of the present disclosure, there is also provided a locomotive air filter system self-cleaning method, which is used to perform self-cleaning using any of the locomotive air filter system self-cleaning devices described above, the method comprising:
[0055] Determine whether the dust removal conditions are met;
[0056] When the dust exhaust conditions are met, the ventilator 2 is started to exhaust dust from the dust exhaust port of the air filter 1;
[0057] Among them, the dust exhaust conditions include at least one of the following conditions:
[0058] The accumulated working time of air filter 1 since the last dust removal reaches the first time;
[0059] The dust height at the dust outlet of the air filter 1 reaches a first height threshold;
[0060] When the locomotive passes through a long tunnel section.
[0061] Exemplarily, the present disclosure provides a method for self-cleaning of a locomotive air filtration system, when the cumulative working time of the air filter 1 since the last dust removal reaches a set value, or when the dust height at the dust removal port of the air filter 1 reaches a first height threshold, or when the locomotive passes through a long tunnel section, the fan 2 can be automatically started to perform compensatory dust removal.
[0062] Specifically, a large amount of fine dust particles are easily accumulated in long tunnels. When a locomotive passes through a long tunnel, the air filtration system will instantly inhale a large amount of dust, which may cause the dust to accumulate at the dust outlet and cannot be discharged in time. The method provided by the present disclosure can achieve maintenance-free air filtration system after the locomotive passes through a long tunnel, reduce the inspection and maintenance cost of the air filtration system, and extend the inspection and maintenance cycle of the air filtration system.
[0063] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. A self-cleaning device for a locomotive air filtration system, characterized in that: It comprises an air filter (1) and a ventilator (2); the ventilator (2) is arranged adjacent to a dust exhaust port of the air filter (1), and the ventilator (2) is used to increase the negative pressure of the dust exhaust port of the air filter (1).
2. The self-cleaning device for the locomotive air filtration system according to claim 1, characterized in that: The locomotive air filter system self-cleaning device also includes a monitoring mechanism, which is arranged adjacent to the dust discharge port of the air filter (1) and is used to obtain the amount of dust at the dust discharge port of the air filter (1).
3. The self-cleaning device for the motorcycle air filtration system according to claim 2, characterized in that: The monitoring mechanism comprises a position sensor (3), wherein the position sensor (3) is arranged adjacent to the dust outlet of the air filter (1), and the position sensor (3) is used to send a first signal when the dust height at the dust outlet of the air filter (1) reaches a first height threshold, and the first signal is used to start the ventilator (2).
4. The self-cleaning device for the motorcycle air filtration system according to claim 3, characterized in that: The locomotive air filtration system self-cleaning device further comprises a controller (4), wherein the controller (4) is communicatively connected with the position sensor (3) and the ventilator (2); the controller (4) is used to generate a first dust removal signal in response to the first signal, and the ventilator (2) is used to start in response to the first dust removal signal.
5. The self-cleaning device for the motorcycle air filtration system according to claim 4, characterized in that: The position sensor (3) is used to send a second signal when the dust height at the dust outlet of the air filter (1) is lower than a second height threshold, and the second signal is used to shut down the ventilator (2).
6. The self-cleaning device for the motorcycle air filtration system according to claim 5, characterized in that: The controller (4) is used to generate a second dust exhaust signal in response to the second signal, and the ventilator (2) is used to shut down in response to the second dust exhaust signal.
7. The self-cleaning device for a motorcycle air filtration system according to claim 4, characterized in that: The controller (4) is integrated with a wireless communication module, and the wireless communication module is used to upload the working status data and fault code of the ventilator (2) to the locomotive control system.
8. The self-cleaning device for a motorcycle air filtration system according to claim 4, characterized in that: A PTC heating element is embedded in the motor winding of the ventilator (2), and the PTC heating element is used to automatically start when the ambient temperature is lower than 5°C.
9. The self-cleaning device for a motorcycle air filtration system according to claim 1, characterized in that: The air filter (1) is a cyclone-type air filter (1).
10. A self-cleaning method for a locomotive air filtration system, characterized in that: The method for performing self-cleaning using the self-cleaning device of the locomotive air filter system according to any one of claims 1 to 9 comprises: Determine whether the dust removal conditions are met; When the dust exhaust conditions are met, the ventilator (2) is started to exhaust dust from the dust exhaust port of the air filter (1); Wherein, the dust exhaust condition includes at least any one of the following conditions: The accumulated working time of the air filter (1) since the last dust removal reaches a first time length; The dust height at the dust outlet of the air filter (1) reaches a first height threshold; When the locomotive passes through a long tunnel section.