A method for treating filter clogging in a fabric treatment device and a fabric treatment device.

Abstract

This application provides a method for treating filter clogging in a fabric processing device. The fabric processing device includes a fabric processing cylinder and a circulating spray device, which are connected to form a circulating spray flow path. A first water pump is provided on the circulating spray flow path. The circulating spray device includes a cleaning chamber with a built-in filter. When the first water pump is running, the washing water in the fabric processing cylinder is discharged into the cleaning chamber, filtered by the filter, and then discharged back into the fabric processing cylinder. The method for treating filter clogging includes: when the first water pump is running, acquiring the operating parameters of the first water pump motor and determining whether the operating parameters meet the requirements; if yes, it is determined that the filter is not clogged; if no, it is determined that the filter is clogged.

Description

Technical Field

[0001] This application relates to the field of fabric processing equipment technology, and in particular to a method for treating filter clogging in fabric processing equipment and a fabric processing equipment. Background Technology

[0002] Some existing fabric processing equipment has a circulating spray washing function, that is, the washing water in the fabric processing equipment can be recycled through a circulating spray device.

[0003] However, lint is generated during the washing process. To prevent lint from clogging the circulating spray device, a filter screen is usually installed in the circulating spray device. The filter screen can effectively isolate lint in the water.

[0004] However, if the lint on the filter screen accumulates to a certain extent and is not cleaned in time, it will affect the spray flow of the circulating spray device, thereby affecting the circulating spray effect. Summary of the Invention

[0005] To overcome the problem that untimely cleaning of filters in existing fabric processing equipment can negatively impact the effectiveness of the circulating spray washing process, this invention proposes a method for treating filter clogging in fabric processing equipment and a fabric processing device itself. This method uses a filter in the circulating spray device to filter the circulating spray water. Simultaneously, by acquiring the operating parameters of the first water pump, the degree of filter clogging can be determined, allowing for timely cleaning of the filter and preventing poor circulating spray washing performance due to untimely filter cleaning. Specifically:

[0006] The first aspect of this application provides a method for treating filter clogging in a fabric processing device. The fabric processing device includes a fabric processing cylinder and a circulating spray device. The fabric processing cylinder and the circulating spray device are connected to form a circulating spray flow path. A first water pump and a filter screen are provided on the circulating spray flow path. When the first water pump is running, the washing water can circulate in the circulating spray flow path so that the washing water discharged from the fabric processing cylinder can be filtered by the filter screen and discharged back into the fabric processing cylinder.

[0007] Methods for dealing with clogged filters include:

[0008] When the first water pump is running, the operating parameters of the first water pump motor are obtained, and it is determined whether the operating parameters meet the requirements. The operating parameters of the first water pump motor include at least one of the motor output power and the motor input current.

[0009] If so, then it is confirmed that the filter is not clogged.

[0010] If not, then the filter is definitely clogged.

[0011] In the above technical solution, obtaining the operating parameters of the first water pump motor and determining whether the operating parameters meet the requirements includes:

[0012] Check whether all operating parameters of the first water pump motor meet the requirements;

[0013] If so, then it is confirmed that the filter is not clogged.

[0014] If not, then the filter is definitely clogged.

[0015] In the above technical solution, the multiple operating parameters of the first water pump motor include at least the average power value of the first water pump motor within a first preset time period and the temperature rise value of the first water pump motor within a second preset time period.

[0016] In the above technical solution, the methods for determining whether multiple operating parameters of the first water pump motor are not up to standard include:

[0017] Determine whether the average power value of the first water pump motor within a first preset time period is less than the preset power value, and whether the temperature rise value of the first water pump motor within a second preset time period is greater than the preset temperature rise value;

[0018] If the average power value of the first water pump motor within the first preset time period is less than the preset power value, and the temperature rise value of the first water pump motor within the second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump motor do not meet the requirements, and it is determined that the filter screen is clogged.

[0019] If the average power value of the first water pump motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump motor within the second preset time period is not greater than the preset temperature rise value, then it is determined that the filter screen is not clogged.

[0020] In the above technical solution, if the average power value of the first water pump motor within a first preset time period is less than the preset power value, and the temperature rise value of the first water pump motor within a second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump motor do not meet the requirements, and it is determined that the filter screen is clogged, including:

[0021] First, determine whether the average power value of the first water pump motor within a first preset time period is less than a preset power value;

[0022] If the average power value of the first water pump motor within the first preset time period is less than the preset power value, then it is further determined whether the temperature rise value of the first water pump motor within the second preset time period is greater than the preset temperature rise value.

[0023] If the temperature rise of the first water pump motor within the second preset time period is greater than the preset temperature rise value, it is determined that the filter screen is clogged.

[0024] The above-mentioned technical solutions for treating filter clogging also include:

[0025] When the speed of the first water pump motor reaches the first preset speed, the operating parameters of the first water pump motor are acquired;

[0026] The first preset speed is between 1000 r / min and 10000 r / min.

[0027] In the above technical solution, the first water pump motor includes motor windings;

[0028] Whether the temperature rise value of the first water pump motor within a second preset time period is greater than a preset temperature rise value includes:

[0029] Whether the temperature rise value of the motor winding of the first water pump is greater than the preset temperature rise value within a second preset time period.

[0030] In the above technical solution, the circulating spray device includes a cleaning chamber with a built-in filter screen. The fabric treatment equipment also has a filter screen self-cleaning program. Under the filter screen self-cleaning program, the circulating spray washing is stopped and the fabric treatment drum is controlled to drain water. The washing water can be discharged into the cleaning chamber and filtered through the filter screen before being discharged from the cleaning chamber. The circulating spray device also includes a cleaning component that is rotatably installed in the cleaning chamber. The cleaning component can rotate under the impact of the water flow into the cleaning chamber and clean the surface of the filter screen by contacting it during rotation.

[0031] Methods for dealing with clogged filters also include:

[0032] When it is determined that the filter screen is clogged, the fabric processing equipment is controlled to run the filter screen self-cleaning program, and the water level in the fabric processing drum is controlled after the filter screen self-cleaning program runs, according to the current washing stage of the fabric processing equipment.

[0033] The washing process includes a pre-wash stage and a main wash stage.

[0034] In the above technical solution, controlling the water level in the fabric treatment drum after the filter self-cleaning program has run, based on the current washing stage of the fabric treatment equipment, includes:

[0035] If the current washing stage is the pre-wash stage, drain the water in the fabric treatment drum to the empty drum level.

[0036] The above-mentioned technical solutions for treating filter clogging also include:

[0037] When performing the filter self-cleaning program during the pre-wash stage, calculate the drainage time of the fabric treatment equipment when the washing water in the fabric treatment drum is drained to the empty drum water level, and determine whether to re-run the circulating spray washing in the pre-wash stage based on the drainage time to judge whether the filter screen is still dirty and clogged.

[0038] In the above technical solution, determining whether to restart the circulating spray washing during the pre-washing stage based on the drainage time to judge whether the filter screen is still clogged includes:

[0039] If the drainage time exceeds the preset drainage time, the pre-wash stage ends and the main wash stage begins.

[0040] If the drainage time does not exceed the preset drainage time, the circulating spray washing will be restarted during the pre-washing stage, and the filter screen will be checked for dirt and blockage during the circulating spray washing.

[0041] In the above technical solution, controlling the water level in the fabric treatment drum after the filter self-cleaning program has run, based on the current washing stage of the fabric treatment equipment, includes:

[0042] If the current washing stage is the main wash stage, drain the water level in the fabric treatment drum to the heating safety level, and after draining the water level in the fabric treatment drum to the heating safety level, refill the main wash water level to continue the main wash stage until the main wash stage ends.

[0043] A second aspect of this application provides a fabric treatment apparatus, comprising:

[0044] Fabric treatment tube, used to hold garments to be treated;

[0045] A circulating spray device includes a cleaning chamber with a built-in filter screen, the cleaning chamber having an inlet and a first drain outlet connected to a fabric treatment cylinder.

[0046] The first water pump, when running, can discharge the washing water in the fabric treatment drum into the cleaning chamber, and after being filtered by the filter screen, it is discharged back into the fabric treatment drum from the cleaning chamber.

[0047] The system includes sensors and a controller. The sensors are used to acquire the operating parameters of the first water pump, and the controller is used to determine whether the filter screen is clogged based on the operating parameters.

[0048] In the above technical solution, the circulating spray device also includes a cleaning component that is rotatably installed in the cleaning chamber;

[0049] When water enters the cleaning chamber, the cleaning component can rotate under the impact of the incoming water flow, and clean the surface of the filter screen by contacting it during rotation.

[0050] In the above technical solution, the filter screen includes a cylindrical mesh structure built into the cleaning chamber. The filter screen of the cylindrical mesh structure is arranged to form a cavity that communicates with the cleaning chamber through the filter screen holes. The cavity is connected to the first drain outlet.

[0051] The cleaning component includes a scraper that is fitted around the outer periphery of the cylindrical filter screen and adheres to the outer periphery of the filter screen.

[0052] The scraper can be driven to rotate around the outer periphery of the filter screen when water enters the cleaning chamber, so as to scrape and clean the outer periphery of the filter screen.

[0053] In the above technical solution, the cleaning component also includes:

[0054] An impeller is built into the cleaning chamber, and the impeller and scraper are connected together;

[0055] When water enters the cleaning chamber, the impeller rotates under the impact of the incoming water flow, which drives the scraper to rotate around the outer circumference of the filter screen to scrape and clean the outer surface of the filter screen.

[0056] In the above technical solution, the cleaning chamber also has a second drain outlet;

[0057] Fabric processing equipment also includes:

[0058] The water inlet pipe is connected between the water inlet of the cleaning chamber and the bottom of the fabric treatment drum, and is used to receive washing water from the fabric treatment drum.

[0059] The first drain pipe is connected between the first drain outlet of the cleaning chamber and the top of the fabric treatment cylinder, and is used to discharge the filtered washing water in the cleaning chamber back into the fabric treatment cylinder.

[0060] The second drain pipe is connected to the second drain outlet of the cleaning chamber and is used to drain the water from the cleaning chamber.

[0061] The inlet pipe, the first drain pipe, and the second drain pipe can all be controlled to open independently.

[0062] In the above technical solution, a first water pump is provided on the first drain pipe or at the first drain outlet, and the first water pump is used to pump the washing water in the cleaning chamber into the fabric treatment drum.

[0063] A second water pump is installed on the second drain pipe or at the second drain outlet to discharge the washing water in the cleaning chamber out of the fabric processing equipment.

[0064] The fabric treatment equipment also includes a main wash water pipe with an inlet valve, through which washing water can be injected into the fabric treatment drum when the inlet valve is opened.

[0065] In the above technical solution, the fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

[0066] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0067] This invention proposes a method for treating filter clogging in a fabric processing device and a fabric processing device. By setting a filter screen in a circulating spray device to filter the circulating spray water, and by obtaining the operating parameters of the first water pump, the clogging status of the filter screen can be determined, thereby enabling timely cleaning of the filter screen and avoiding the problem of poor circulating spray washing effect due to the filter screen not being cleaned in time. Attached Figure Description

[0068] Figure 1 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 1 ;

[0069] Figure 2 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 2 ;

[0070] Figure 3 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 3 ;

[0071] Figure 4 This is a schematic diagram of the overall structure of the fabric processing equipment in an embodiment of the present invention;

[0072] Figure 5 This is a cross-sectional view of the circulating spray device in an embodiment of the present invention;

[0073] Figure 6 This is a three-dimensional structural diagram of the impeller in an embodiment of this application.

[0074] in:

[0075] 10-Clothing handling drum;

[0076] 20-Circulating spray device; 201-Filter screen; 202-Cleaning chamber; 2021-Water inlet; 2022-First drain outlet; 2023-Second drain outlet; 203-Cleaning component; 2031-Scraper blade; 2032-Impeller;

[0077] 30 - Inlet pipe;

[0078] 40 - First drain pipe; 401 - First water pump; 402 - Second water pump;

[0079] 50 - Second drain pipe;

[0080] 60 - Main flush pipe. Detailed Implementation

[0081] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0082] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples.

[0083] In the description of this invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments," as used herein, does not necessarily refer to the same embodiment when used multiple times, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or," unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "used as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided in this invention should not be construed as limiting the scope of protection of this invention.

[0084] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0086] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0087] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0088] Example

[0089] like Figures 1-6 As shown, the first aspect of this application provides a method for treating filter clogging in a fabric processing device. The fabric processing device includes a fabric processing cylinder 10 and a circulating spray device 20. The fabric processing cylinder 10 and the circulating spray device 20 are connected to form a circulating spray flow path. A first water pump 401 and a filter screen 201 are provided on the circulating spray flow path. When the first water pump 401 is running, the washing water can circulate in the circulating spray flow path so that the washing water discharged from the fabric processing cylinder 10 can be filtered by the filter screen 201 and discharged back into the fabric processing cylinder 10.

[0090] Methods for dealing with clogged filters include:

[0091] When the first water pump 401 is running, the operating parameters of the motor of the first water pump 401 are obtained, and it is determined whether the operating parameters meet the requirements. The operating parameters of the first water pump motor include at least one of the motor output power and the motor input current.

[0092] If so, then it is confirmed that filter 201 is not clogged;

[0093] If not, then filter 201 is confirmed to be clogged.

[0094] In this embodiment, a filter screen 20 is installed in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the operating parameters of the first water pump 401, it is possible to determine whether the filter screen 201 is dirty or clogged, so that the filter screen 201 can be cleaned in time, avoiding the problem of poor circulating spray washing effect of the fabric processing equipment due to the filter screen 201 not being cleaned in time after it is dirty or clogged.

[0095] Furthermore, in some embodiments, obtaining the operating parameters of the first water pump 401 motor and determining whether the operating parameters meet the requirements includes:

[0096] Check whether the multiple operating parameters of the first water pump 401 motor meet the requirements;

[0097] If so, then it is confirmed that filter 201 is not clogged;

[0098] If not, then filter 201 is confirmed to be clogged.

[0099] In this embodiment, by determining whether multiple operating parameters of the motor meet the requirements, it is possible to more accurately determine whether the filter 201 is clogged, avoiding the problem of inaccurate judgment that may occur if only one parameter is obtained.

[0100] Furthermore, in some embodiments, the multiple operating parameters of the first water pump 401 motor include at least the average power value of the first water pump 401 motor within a first preset time period and the temperature rise value of the first water pump 401 motor within a second preset time period.

[0101] It should be noted that when the filter screen 201 is clogged, the average power value of the first water pump 401 motor in the first preset time period will be lower than the preset average power value of the first water pump 401 motor in the first preset time period. Also, when the filter screen 201 is clogged, the first water pump will run dry, which will cause the temperature of the first water pump motor to rise faster, resulting in the temperature rise value of the first water pump 401 motor in the second preset time period being greater than the preset temperature rise value.

[0102] It should be noted that when the filter screen 201 is clogged, the water flow through the first water pump 401 will decrease, the work done by the first water pump 401 will decrease, and therefore the average power of the first water pump will be lower than the preset average power.

[0103] It should also be noted that the first preset duration and the second preset duration mentioned above may be the same or different.

[0104] Therefore, in some embodiments, the method for determining whether multiple operating parameters of the first water pump 401 motor are not satisfactory includes:

[0105] Determine whether the average power value of the first water pump 401 motor within a first preset time period is less than the preset power value, and whether the temperature rise value of the first water pump 401 motor within a second preset time period is greater than the preset temperature rise value.

[0106] If the average power value of the first water pump 401 motor in the first preset time period is less than the preset power value, and the temperature rise value of the first water pump 401 motor in the second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump 401 motor do not meet the requirements, and it is determined that the filter screen 201 is clogged.

[0107] If the average power value of the first water pump 401 motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump 401 motor within the second preset time period is not greater than the preset temperature rise value, then it is determined that the filter screen 201 is not clogged.

[0108] Furthermore, in some embodiments, if the average power value of the first water pump 401 motor within a first preset time period is less than a preset power value, and the temperature rise value of the first water pump 401 motor within a second preset time period is greater than a preset temperature rise value, then multiple operating parameters of the first water pump 401 motor do not meet the requirements, and it is determined that the filter screen is clogged, including:

[0109] First, determine whether the average power value of the first water pump 401 motor within a first preset time period is less than the preset power value;

[0110] If the average power value of the first water pump 401 motor within the first preset time period is less than the preset power value, then it is further determined whether the temperature rise value of the first water pump 401 motor within the second preset time period is greater than the preset temperature rise value.

[0111] If the temperature rise of the first water pump 401 motor within the second preset time period is greater than the preset temperature rise value, it is determined that the filter screen 201 is clogged.

[0112] It should be noted that the reason why the average power value of the motor is obtained first in this embodiment of the application, and the motor temperature rise value is obtained after the power value does not meet the requirements, is because the water pump motor itself will generate heat under normal operating conditions. Therefore, directly obtaining the motor temperature rise is not the most accurate judgment condition. It is still necessary to obtain the abnormality of the power value first, and then judge the motor temperature rise.

[0113] Furthermore, in some embodiments, the filter clogging treatment method also includes:

[0114] When the speed of the first water pump 401 motor reaches the first preset speed, the operating parameters of the first water pump 401 motor are acquired;

[0115] The first preset speed is between 1000 r / min and 10000 r / min.

[0116] It should be noted that when the speed of the first water pump motor is between 1000r / min and 10000r / min, the difference will be more obvious when obtaining the average power of the motor within the preset time, making it easier to determine whether the filter is clogged.

[0117] Furthermore, in some embodiments, the first water pump 401 motor includes motor windings;

[0118] Whether the temperature rise value of the first water pump 401 motor within a second preset time period is greater than a preset temperature rise value includes:

[0119] Whether the temperature rise value of the motor winding of the first water pump 401 within a second preset time period is greater than the preset temperature rise value.

[0120] It should be noted that, in this embodiment of the application, the temperature rise value of the motor of the first water pump is obtained from the temperature rise value of the motor winding because the temperature of the motor winding is the closest to the actual temperature of the motor.

[0121] Furthermore, in some embodiments, the circulating spray device 20 includes a cleaning chamber 202 with a built-in filter screen 201. The fabric treatment equipment also has a filter screen self-cleaning program. Under the filter screen self-cleaning program, the circulating spray washing is stopped and the fabric treatment cylinder 10 is controlled to drain water. The washing water can be discharged into the cleaning chamber 202 and filtered through the filter screen 201 before being discharged from the cleaning chamber 202. The circulating spray device 20 also includes a cleaning component 203 that is rotatably disposed in the cleaning chamber 202. The cleaning component 203 can rotate under the impact of the water flow into the cleaning chamber 202 and clean the surface of the filter screen 201 by contacting it during rotation.

[0122] Methods for dealing with clogged filters also include:

[0123] When it is determined that the filter screen 201 is clogged, the fabric processing equipment is controlled to run the filter screen self-cleaning program, and the water level in the fabric processing drum 10 after the filter screen self-cleaning program is run is controlled according to the current washing stage of the fabric processing equipment.

[0124] The washing process includes a pre-wash stage and a main wash stage.

[0125] In this embodiment of the application, when the filter screen self-cleaning program is running, by controlling the fabric treatment cylinder 10 to drain water, the impact force during drainage can be used to drive the cleaning component 203 in the cleaning chamber 202 to rotate, thereby cleaning the filter screen 201 by rotating the cleaning component 203. The dust that falls off the filter screen 201 during cleaning can be discharged from the cleaning chamber 202 along with the washing water.

[0126] Furthermore, in some embodiments, the filter self-cleaning program is controlled to maintain the water level in the fabric treatment drum after operation, based on the current washing stage of the fabric treatment equipment, including:

[0127] If the current washing stage is the pre-wash stage, drain the water in the fabric treatment drum 10 to the empty drum water level.

[0128] It should be noted that the heating element does not work during the pre-wash stage, but is activated during the main wash stage. The operation of the pre-wash stage is to increase the soaking and washing time of the clothes, thereby improving the washing efficiency.

[0129] Furthermore, in some embodiments, the filter clogging treatment method also includes:

[0130] When the filter self-cleaning program is executed during the pre-washing stage, the drainage time of the fabric treatment equipment when the washing water in the fabric treatment drum 10 is drained to the empty drum water level is calculated, and the drainage time is used to determine whether the circulating spray washing should be restarted in the pre-washing stage to determine whether the filter is still dirty and clogged.

[0131] The reason for obtaining the drainage time in the pre-washing stage in this embodiment is that the amount of water in the fabric treatment drum is uncertain, and the length of the drainage time directly reflects the cleaning time of the filter screen, thus indirectly reflecting whether the filter screen can be sufficiently cleaned within this drainage time.

[0132] Furthermore, in some implementations, determining whether to re-run the circulating spray washing during the pre-washing stage based on the drainage time to determine whether the filter screen is still clogged includes:

[0133] If the drainage time exceeds the preset drainage time, it means that the drainage time is long enough and can effectively clean the filter screen for a long time. At this point, the pre-wash stage can be ended and the main wash stage can begin.

[0134] If the drainage time does not exceed the preset drainage time, it means that the drainage time is not long enough to determine whether the filter screen has been cleaned sufficiently. In this case, it is necessary to restart the circulating spray washing during the pre-washing stage and re-obtain the operating parameters of the first water pump during the circulating spray washing to determine whether the filter screen is still clogged.

[0135] Specifically, in combination Figure 2 When the fabric treatment equipment is in the pre-wash stage, the main steps include:

[0136] S1: The machine has entered the pre-wash stage;

[0137] S2: Open the water inlet valve and fill the water to the pre-wash water level;

[0138] S3: Turn on the circulating spray, and the first water pump motor speeds up to n revolutions;

[0139] S31: Read the power value of the first water pump motor within T1 seconds and calculate the average power value P1;

[0140] S32: Determine whether the average power P1 is lower than the power during normal spraying; when the average power P1 is lower than 80% of the water pump motor power P0 during normal spraying, execute the temperature rise judgment logic S4 step, otherwise end the pre-wash;

[0141] S4: Provide a stable current to the first water pump motor and read the temperature of the spray water pump motor windings. {It is worth noting that under normal circumstances, the current provided will vary according to the resistance of the water flow; if the filter is clogged, the water pump will run dry, causing the motor temperature to rise rapidly.}

[0142] S41: Calculate the motor temperature rise value W1 over a specified time T2 seconds;

[0143] S42 determines whether the temperature rise value W1 of the first water pump motor is greater than the temperature rise value during normal spraying. If the temperature rise value W1 of the first water pump motor is greater than the preset temperature rise value, execute step S5; otherwise, end the pre-wash.

[0144] S5: Perform filter cleaning control;

[0145] S51 shuts off the circulating spray, turns on the second water pump, drains the water to the empty cylinder level, shuts off the drain pump, and times the running time of the second water pump.

[0146] If the cumulative running time of the second water pump exceeds t0, exit the filter cleaning program and proceed to step S5; if it does not exceed t0, return to step S2.

[0147] S6: End of pre-wash stage, proceed to main wash stage.

[0148] Furthermore, in some embodiments, the filter self-cleaning program is controlled to maintain the water level in the fabric treatment drum after operation, based on the current washing stage of the fabric treatment equipment, including:

[0149] If the current washing stage is the main wash stage, drain the water level in the fabric treatment drum to the heating safety level, and after draining the water level in the fabric treatment drum to the heating safety level, refill the main wash water level to continue the main wash stage until the main wash stage ends.

[0150] Specifically, in combination Figure 3 As shown, when the fabric treatment equipment is running the main wash stage, it mainly includes the following steps:

[0151] S1: The machine has entered the main washing stage;

[0152] S2: Turn on the circulating spray, and the DC first water pump motor speeds up to n revolutions;

[0153] S21: Read the power value of the first water pump motor within T seconds and calculate the average power value P2;

[0154] S22: Determine if the average power P2 is lower than the power during normal spraying; if the average power P2 is less than 80% of the water pump motor power P0 during normal spraying, execute the temperature rise judgment step S3; otherwise, continue the main wash.

[0155] S3: Provide a stable current to the first water pump motor and read the temperature of the spray water pump motor windings;

[0156] S31: Calculate the motor temperature rise value W2 over a specified time T2 seconds.

[0157] S32: Determine whether the motor temperature rise value W2 is greater than the normal spray temperature rise value. If the motor temperature rise value W2 is greater than the preset temperature rise value, execute step S4; otherwise, continue the main wash.

[0158] S4: Perform filter cleaning control;

[0159] S41: Turn off the circulating spray, turn on the second water pump, drain to the safe heating water level, and then turn off the second water pump;

[0160] S42: Open the water inlet valve to add water to the main wash water level and continue to turn on the circulating spray.

[0161] S5: Continue with the normal main wash until finished.

[0162] Furthermore, such as Figure 4 and Figure 5 As shown, a second aspect of this application also provides a fabric processing apparatus, comprising:

[0163] Fabric processing tube 10, used to hold the garments to be processed;

[0164] The circulating spray device 20 includes a cleaning chamber with a built-in filter screen 201. The cleaning chamber 202 has a water inlet 2021 and a first drain outlet 2022 that are connected to the fabric processing cylinder 10.

[0165] The first water pump 401, when running, can discharge the washing water in the fabric treatment drum 10 into the cleaning chamber 202, and after being filtered by the filter screen 201, it is discharged back into the fabric treatment drum 10 from the cleaning chamber 202.

[0166] The sensor is used to acquire the operating parameters of the first water pump 401 during operation, and the controller is used to determine whether the filter screen 201 is dirty or clogged based on the operating parameters.

[0167] In this embodiment, a filter screen 20 is installed in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the operating parameters of the first water pump 401, it is possible to determine whether the filter screen 201 is dirty or clogged, so that the filter screen 201 can be cleaned in time, avoiding the problem of poor circulating spray washing effect of the fabric processing equipment due to the filter screen 201 not being cleaned in time after it is dirty or clogged.

[0168] Furthermore, in some embodiments, the circulating spray device 20 also includes a cleaning component 203 rotatably disposed within the cleaning chamber;

[0169] When water enters the cleaning chamber 202, the cleaning component 203 can rotate under the impact of the incoming water flow, and clean the surface of the filter screen 201 by contacting the filter screen 201 during rotation.

[0170] In this embodiment, a cleaning component 203 that can rotate under the impact of water flow is provided in the cleaning chamber 202. The rotation of the cleaning component 203 can clean the surface of the filter screen 201, thereby achieving the self-cleaning effect of the filter screen 201 through the drainage operation of the fabric treatment cylinder.

[0171] Furthermore, such as Figure 5 As shown, in some embodiments, the filter screen 201 includes a cylindrical mesh structure built into the cleaning chamber 202. The filter screen 201 with the cylindrical mesh structure is configured to form a cavity that communicates with the cleaning chamber 202 through the filter screen holes. The cavity communicates with the first drain outlet 2022.

[0172] Cleaning component 203 includes a scraper 2031 that is sleeved on the outer periphery of cylindrical filter screen 201 and adheres to the outer periphery of the filter screen;

[0173] When water enters the cleaning chamber 202, the scraper 2031 can be driven to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer periphery of the filter screen 201.

[0174] When the washing water in the fabric treatment drum 10 enters the cleaning chamber 202, the cleaning component 203 with scraper 2031 in the cleaning chamber 203 rotates under the impact of the water flow, thereby scraping and cleaning the outer peripheral surface of the filter screen 201.

[0175] Furthermore, in some embodiments, the cleaning component 203 also includes:

[0176] An impeller 2032 is built into the cleaning chamber 202, and the impeller 2032 and the scraper 2031 are connected together;

[0177] When water enters the cleaning chamber 202, the impeller 2032 can rotate under the impact of the incoming water flow, thereby driving the scraper 2031 to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer periphery of the filter screen 201.

[0178] When the washing water in the fabric treatment drum 10 enters the cleaning chamber 202, the water flow impacts the impeller 2032, causing it to rotate. The impeller 2032 then drives the scraper 2031 to rotate, thereby achieving a cleaning effect on the surface of the filter screen 201.

[0179] Further optimization:

[0180] The aforementioned impeller is an inclined impeller, which can rotate on its own under the impact of the water flow at the inlet. The cleaning component also includes a cleaning component motor that can be switched on and off with the impeller. A clutch mechanism is provided between the cleaning component motor and the impeller shaft, which can be used to control the connection and disconnection of the cleaning component motor and the shaft. When the filter screen is severely clogged, in order to avoid overloading the cleaning component motor, the clutch mechanism can be controlled to disconnect the cleaning component motor and the shaft, so that the impeller rotates completely under the action of the water flow, creating a negative pressure effect at the inlet, thereby facilitating the rapid inflow and discharge of wastewater.

[0181] Furthermore, the drain valve at the second drain outlet can be controlled to open and close according to preset rules. For example, when the filter screen is severely clogged, the drain valve can be controlled to open and close intermittently at a certain rhythm to create an agitation effect on the water in the treatment chamber, so that more dirt can be shaken away with the water flow.

[0182] Furthermore, in some implementations, such as Figure 4 and Figure 5 As shown, the cleaning chamber 202 also has a second drain outlet 2023;

[0183] Fabric processing equipment also includes:

[0184] Water inlet pipe 30 is connected between the water inlet 2021 of the cleaning chamber 202 and the bottom of the fabric treatment drum 10, and is used to receive washing water from the fabric treatment drum 10.

[0185] The first drain pipe 40 is connected between the first drain port 2022 of the cleaning chamber 202 and the top of the fabric treatment cylinder 10, and is used to discharge the filtered washing water in the cleaning chamber 202 back into the fabric treatment cylinder.

[0186] The second drain pipe 50 is connected to the second drain outlet 2023 of the cleaning chamber 202 and is used to drain the water in the cleaning chamber 2023.

[0187] The inlet pipe 30, the first drain pipe 40, and the second drain pipe 50 can all be controlled to open independently.

[0188] Furthermore, in some embodiments, a first water pump 401 is provided on the first drain pipe 40 or at the first drain outlet 2022, and the first water pump 401 is used to pump the washing water in the cleaning chamber 202 into the fabric treatment cylinder 10.

[0189] A second water pump 402 is provided on the second drain pipe 50 or at the second drain outlet 2023 to discharge the washing water in the cleaning chamber 202 out of the fabric processing equipment.

[0190] The fabric treatment equipment also includes a main wash water pipe 60 with an inlet valve, through which washing water can be injected into the fabric treatment cylinder 10 when the inlet valve is opened.

[0191] Furthermore, in any of the above embodiments, the fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

[0192] In summary, this application provides a device with a self-cleaning function for a circulating spray filter and a control method for cleaning the filter. The device can intelligently determine the accumulation of lint in the filter unit by the power and temperature rise of the water pump. By setting a cleaning component 203 in the circulating spray device 20, the filter can be cleaned automatically and in a timely manner, achieving the effect of intelligently identifying the dirt and blockage of the filter 201 and intelligently cleaning the filter 201.

[0193] In the above embodiments of this application, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The steps illustrated in the related flowcharts can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown here. In other words, the order of steps described in the foregoing embodiments is merely an example. Reasonable adjustments to the order of steps based on the content of the embodiments of this application are also within the protection scope of the embodiments of this application.

[0194] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0195] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0196] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for treating filter clogging in a fabric processing device, characterized in that, The fabric processing equipment includes a fabric processing cylinder (10) and a circulating spray device (20). The fabric processing cylinder (10) and the circulating spray device (20) are connected to form a circulating spray flow path. A first water pump (401) and a filter screen (201) are provided on the circulating spray flow path. When the first water pump (401) is running, the washing water can circulate in the circulating spray flow path so that the washing water can be discharged from the fabric processing cylinder (10) and then filtered by the filter screen (201) and discharged back into the fabric processing cylinder (10). The method for treating filter clogging includes: When the first water pump (401) is running, the operating parameters of the first water pump (401) motor are obtained, and it is determined whether the operating parameters of the first water pump (401) motor meet the requirements. The operating parameters of the first water pump (401) motor include at least one of the following: the average power value of the first water pump (401) motor in a first preset time period, the temperature rise value of the first water pump (401) motor in a second preset time period, the motor output power, and the motor input current. in If the average power value of the first water pump (401) motor within the first preset time period is less than the preset power value, and the temperature rise value of the first water pump (401) motor within the second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump (401) motor do not meet the requirements, and it is determined that the filter screen (201) is clogged. If the average power value of the first water pump (401) motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump (401) motor within the second preset time period is not greater than the preset temperature rise value, then it is determined that the filter screen (201) is not clogged.

2. The method for treating filter clogging according to claim 1, characterized in that, If the average power value of the first water pump (401) motor within a first preset time period is less than the preset power value, and the temperature rise value of the first water pump (401) motor within a second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump (401) motor do not meet the requirements, and it is determined that the filter screen is clogged, including: First, determine whether the average power value of the first water pump (401) motor within the first preset time period is less than the preset power value; If the average power value of the first water pump (401) motor in the first preset time period is less than the preset power value, then it is further determined whether the temperature rise value of the first water pump (401) motor in the second preset time period is greater than the preset temperature rise value. If the temperature rise of the first water pump (401) motor within the second preset time period is greater than the preset temperature rise value, then it is determined that the filter screen (201) is clogged.

3. The method for treating filter clogging according to claim 2, characterized in that, The method for treating filter clogging also includes: When the speed of the first water pump (401) motor reaches the first preset speed, the operating parameters of the first water pump (401) motor are obtained; The first preset speed is between 1000 r / min and 10000 r / min.

4. The method for treating filter clogging according to claim 2 or 3, characterized in that, The first water pump (401) motor includes motor windings; The step of determining whether the temperature rise value of the first water pump (401) motor within a second preset time period is greater than a preset temperature rise value includes: Whether the temperature rise value of the motor winding of the first water pump (401) within a second preset time period is greater than the preset temperature rise value.

5. The method for treating filter clogging according to claim 1, characterized in that, The circulating spray device (20) includes a cleaning chamber (202) with the filter screen (201) built in. The fabric treatment device also has a filter screen self-cleaning program. Under the filter screen self-cleaning program, the circulating spray washing is stopped and the fabric treatment cylinder (10) is controlled to drain water. The washing water can be discharged into the cleaning chamber (202) and filtered by the filter screen (201) before being discharged from the cleaning chamber (202). The circulating spray device (20) also includes a cleaning component (203) that is rotatably disposed in the cleaning chamber (202). The cleaning component (203) can rotate under the impact of the water flow into the cleaning chamber (202) and clean the surface of the filter screen (201) by contacting it during rotation. The method for treating filter clogging also includes: When it is determined that the filter screen (201) is clogged, the fabric processing equipment is controlled to run the filter screen self-cleaning program, and the water level in the fabric processing drum (10) after the filter screen self-cleaning program is run is controlled according to the current washing stage of the fabric processing equipment. The washing stages include a pre-wash stage and a main wash stage.

6. The method for treating filter clogging according to claim 5, characterized in that, The step of controlling the water level in the fabric treatment drum after the filter self-cleaning program has run, based on the current washing stage of the fabric treatment equipment, includes: If the current washing stage is the pre-wash stage, drain the water in the fabric treatment drum (10) to the empty drum water level.

7. The method for treating filter clogging according to claim 6, characterized in that, The method for treating filter clogging also includes: When performing the filter self-cleaning procedure during the pre-washing stage, the drainage time of the fabric processing equipment when draining the washing water in the fabric processing drum (10) to the empty drum water level is calculated, and the drainage time is used to determine whether to run the circulating spray washing again in the pre-washing stage to determine whether the filter is still dirty and clogged.

8. The method for treating filter clogging according to claim 7, characterized in that, The method of determining whether to restart the circulating spray washing during the pre-washing stage based on the drainage time to judge whether the filter screen is still clogged includes: If the drainage time exceeds the preset drainage time, the pre-wash stage ends and the main wash stage begins. If the drainage time does not exceed the preset drainage time, the circulating spray washing will be restarted during the pre-washing stage, and the filter screen will be checked for dirt and blockage during the circulating spray washing.

9. The method for treating filter clogging according to claim 5, characterized in that, The step of controlling the water level in the fabric treatment drum after the filter self-cleaning program has run, based on the current washing stage of the fabric treatment equipment, includes: If the current washing stage is the main wash stage, drain the water level in the fabric treatment drum to the heating safety level, and after draining the water level in the fabric treatment drum to the heating safety level, refill the main wash water level to continue the main wash stage until the main wash stage ends.

10. A fabric treatment device, characterized in that, include: Fabric processing tube (10), the fabric processing tube (10) is used to hold the garments to be processed; A circulating spray device (20) includes a cleaning chamber with a built-in filter screen (201), the cleaning chamber (202) having an inlet (2021) and a first outlet (2022) communicating with the fabric treatment cylinder (10). The first water pump (401) is able to discharge the washing water in the fabric treatment drum (10) into the cleaning chamber (202) when it is running, and after being filtered by the filter screen (201), it is discharged back into the fabric treatment drum (10) from the cleaning chamber (202). The sensor is used to acquire the operating parameters of the first water pump (401) during operation, and the controller is used to determine whether the filter screen (201) is clogged based on the operating parameters.

11. The fabric processing equipment according to claim 10, characterized in that, The circulating spray device (20) also includes a cleaning component (203) that is rotatably disposed within the cleaning chamber; When water enters the cleaning chamber (202), the cleaning component (203) can rotate under the impact of the incoming water flow, and clean the surface of the filter screen (201) by contacting it during rotation.

12. The fabric processing equipment according to claim 11, characterized in that, The filter screen (201) includes a cylindrical mesh structure built into the cleaning chamber (202). The filter screen (201) of the cylindrical mesh structure is configured to form a cavity that communicates with the cleaning chamber (202) through the filter screen holes. The cavity is connected to the first drain outlet (2022). The cleaning component (203) includes a scraper (2031) sleeved on the outer periphery of the cylindrical filter screen (201) and attached to the outer periphery of the filter screen. The scraper (2031) is driven to rotate around the outer periphery of the filter screen (201) when water enters the cleaning chamber (202) to scrape and clean the outer peripheral surface of the filter screen (201).

13. The fabric processing equipment according to claim 12, characterized in that, The cleaning component (203) also includes: An impeller (2032) is built into the cleaning chamber (202), and the impeller (2032) and the scraper (2031) are connected together; When water enters the cleaning chamber (202), the impeller (2032) can rotate under the impact of the incoming water flow, thereby driving the scraper (2031) to rotate around the outer periphery of the filter screen (201) to scrape and clean the outer periphery of the filter screen (201).

14. The fabric processing equipment according to claim 10, characterized in that, The cleaning chamber (202) also has a second drain outlet (2023); The fabric processing equipment also includes: Water inlet pipe (30), which is connected between the water inlet (2021) of the cleaning chamber (202) and the bottom of the fabric treatment tube (10), is used to receive washing water from the fabric treatment tube (10); The first drain pipe (40) is connected between the first drain outlet (2022) of the cleaning chamber (202) and the top of the fabric treatment tube (10) to discharge the filtered washing water in the cleaning chamber (202) back into the fabric treatment tube. The second drain pipe (50) is connected to the second drain outlet (2023) of the cleaning chamber (202) for draining water from the cleaning chamber (202); The water inlet pipe (30), the first drain pipe (40) and the second drain pipe (50) can all be individually controlled to open.

15. The fabric processing equipment according to claim 14, characterized in that, The first water pump (401) is provided on the first drain pipe (40) or at the first drain outlet (2022). The first water pump (401) is used to pump the washing water in the cleaning chamber (202) into the fabric treatment cylinder (10). A second water pump (402) is provided on the second drain pipe (50) or at the second drain outlet (2023). The second water pump (402) is used to discharge the washing water in the cleaning chamber (202) out of the fabric processing equipment. The fabric treatment equipment also includes a main washing pipe (60) with a water inlet valve, which allows washing water to be injected into the fabric treatment cylinder (10) through the main washing pipe (60) when the water inlet valve is opened.

16. The fabric processing equipment according to claim 10, characterized in that, The fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

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