A method for treating a filter screen of a fabric treatment apparatus and a fabric treatment apparatus

Abstract

The application provides a filter screen dirty blockage processing method of a fabric treatment device and a fabric treatment device, and belongs to the field of fabric treatment devices. The fabric treatment device comprises a fabric treatment cylinder and a circulating spraying device. The circulating spraying device comprises a spraying pipeline and a cleaning cavity arranged on the spraying pipeline. A filter screen is arranged in the cleaning cavity. The spraying pipeline is communicated with the fabric treatment cylinder through water inlet and outlet ports to form a circulating spraying flow path. A first water pump is arranged on the spraying pipeline. When the first water pump is running, washing water in the fabric treatment cylinder enters the cleaning cavity through the water inlet port of the spraying pipeline, is filtered through the filter screen, and is discharged back to the fabric treatment cylinder to make the fabric treatment device run the circulating spraying washing. The method comprises the following steps: obtaining washing state information of the fabric treatment device when the fabric treatment device runs the circulating spraying washing, determining whether the washing state information meets the requirements, determining that the filter screen does not have a dirty blockage if yes, and determining that the filter screen has a dirty blockage if no.

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 washing status information of the fabric processing equipment during circulating spray washing, it can promptly determine whether the filter is clogged, thus preventing poor circulating spray washing performance due to untimely filter clogging. Specifically:

[0006] The first aspect of this application provides a method for treating dirt and clogging in a fabric processing device. The fabric processing device includes a fabric processing cylinder and a circulating spray device. The circulating spray device includes a spray pipe and a cleaning chamber disposed between the pipe inlet and the pipe outlet of the spray pipe. A filter screen is built into the cleaning chamber. The spray pipe is connected to the fabric processing cylinder through the pipe inlet and the pipe outlet to form a circulating spray flow path. A first water pump is provided on the spray pipe. When the first water pump is running, the washing water in the fabric processing cylinder can enter the cleaning chamber through the water inlet of the spray pipe, and after being filtered by the filter screen, it can be discharged back to the fabric processing cylinder from the water outlet of the spray pipe, so that the fabric processing device can operate in a circulating spray washing mode.

[0007] Methods for dealing with dirt and blockage include:

[0008] When the fabric processing equipment is running a circulating spray washing process, the washing status information of the fabric processing equipment is obtained, and it is determined whether the washing status information meets the requirements.

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

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

[0011] The washing status information includes at least one of the following: water level change information in the fabric treatment drum and water flow rate change information in the spray pipe.

[0012] In the above technical solution, obtaining the washing status information of the fabric treatment equipment and determining whether the washing status information meets the requirements includes:

[0013] Determine whether the water level change information in the fabric treatment cylinder meets the requirements, and whether the water flow rate change information in the spray pipe meets the requirements;

[0014] If so, then it is confirmed that the filter is not clogged.

[0015] If not, then the filter is definitely clogged.

[0016] In the above technical solution, the water level change information in the fabric treatment cylinder includes the water level change value of the fabric treatment cylinder within a first preset time period, and the water flow rate change information in the spray pipe includes the average water flow rate of the spray pipe within a second preset time period.

[0017] Methods for dealing with clogged filters include:

[0018] Determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and determine whether the average water flow rate of the spray pipe within the second preset time period is less than the preset average value;

[0019] If the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, then it is determined that the filter screen is clogged.

[0020] If the water level change in the fabric treatment cylinder within the first preset time period is not less than the preset change value, and / or the average water flow rate in the spray pipe within the second preset time period is not less than the preset average value, then it is determined that the filter screen is not clogged.

[0021] In the above technical solution, determining whether the water level change value of the fabric treatment cylinder within a first preset time period is less than a preset change value, and determining whether the average water flow rate of the spray pipe within a second preset time period is less than a preset average value, includes:

[0022] First, determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value;

[0023] If the water level change value of the fabric treatment cylinder is less than the preset change value within the first preset time period, then check whether the average water flow rate of the further spray pipe is less than the preset average value within the second preset time period.

[0024] If the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, it is determined that the filter screen is clogged.

[0025] If the average water flow rate of the spray pipe within the second preset time period is not less than the preset average value, it is determined that the filter screen is not clogged.

[0026] In the above technical solution, a first spray pipe section is formed between the outlet of the first water pump and the spray pipe.

[0027] Determining whether the average water flow rate of the sprinkler pipe within a second preset time period is less than a preset average includes:

[0028] Determine whether the average water flow rate of the first spray pipe section within the second preset time period is less than the preset average value.

[0029] In the above technical solution, the fabric treatment equipment also has a filter self-cleaning program. Under the filter self-cleaning program, the circulating spray washing is stopped and the fabric treatment drum is drained. The washing water can be discharged into the cleaning chamber and filtered through the filter 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.

[0030] Methods for dealing with clogged filters also include:

[0031] 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 after the filter screen self-cleaning program runs is controlled according to the current washing stage of the fabric processing equipment.

[0032] The washing process includes a pre-wash stage and a main wash stage that runs after the pre-wash stage.

[0033] 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:

[0034] If the current washing stage is the pre-wash stage, drain the water in the fabric treatment drum to the empty drum level.

[0035] The above-mentioned technical solutions for treating filter clogging also include:

[0036] 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.

[0037] 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:

[0038] If the drainage time exceeds the preset drainage time, the pre-wash stage ends and the main wash stage begins.

[0039] 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.

[0040] 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:

[0041] 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.

[0042] A second aspect of this application provides a fabric treatment apparatus, comprising:

[0043] Fabric treatment tube, used to hold garments to be treated;

[0044] 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.

[0045] 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.

[0046] Sensors and controllers are used to acquire washing status information of the fabric processing equipment, and the controllers are used to determine whether the filter is dirty or clogged based on the washing status information.

[0047] In the above technical solution, the circulating spray device also includes a cleaning component that is rotatably installed in the cleaning chamber;

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] In the above technical solution, the cleaning component also includes:

[0053] An impeller is built into the cleaning chamber, and the impeller and scraper are connected together;

[0054] 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.

[0055] In the above technical solution, the cleaning chamber also has a second drain outlet;

[0056] The fabric treatment equipment also includes spray piping, which includes:

[0057] 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.

[0058] 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.

[0059] Fabric processing equipment also includes:

[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, and the first water pump is used to pump the washing water in the cleaning chamber into the fabric treatment cylinder;

[0063] A second water pump is installed on the second drain pipe or at the second drain outlet. The second water pump is used 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 sensors include a water level sensor located inside the fabric processing cylinder and a flow sensor located between the first water pump and the outlet of the first drain pipe.

[0066] In the above technical solution, the fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

[0067] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0068] In this embodiment, a filter screen is installed in the circulating spray device to filter the circulating spray water. At the same time, by acquiring the washing status information of the fabric treatment equipment when the circulating spray washing is running, it is possible to determine in a timely manner whether the filter screen is dirty and clogged, so as to avoid the problem of poor circulating spray washing effect caused by the filter screen not being cleaned in time. Attached Figure Description

[0069] Figure 1 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 1 ;

[0070] Figure 2 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 2 ;

[0071] Figure 3 The control flow of the dirt clogging treatment method for the fabric treatment equipment in this embodiment of the invention. Figure 3 ;

[0072] Figure 4 This is a schematic diagram of the overall structure of the fabric processing equipment in an embodiment of the present invention;

[0073] Figure 5 This is a cross-sectional view of the circulating spray device in an embodiment of the present invention;

[0074] Figure 6 This is a three-dimensional structural diagram of the impeller in an embodiment of the invention.

[0075] in:

[0076] 10-Clothing handling drum;

[0077] 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;

[0078] 30 - Inlet pipe;

[0079] 40 - First drain pipe; 401 - First water pump; 402 - Second water pump;

[0080] 50 - Second drain pipe;

[0081] 60 - Main flush pipe. Detailed Implementation

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] Example

[0090] like Figures 1-6 As shown, the first aspect of this application provides a method for treating dirt and clogging in a fabric processing device. The fabric processing device includes a fabric processing cylinder 10 and a circulating spray device 20. The circulating spray device 20 includes a spray pipe and a cleaning chamber 202 disposed between the pipe inlet and the pipe outlet of the spray pipe. A filter screen 201 is built into the cleaning chamber 202. The spray pipe is connected to the fabric processing cylinder 10 through the pipe inlet and the pipe outlet to form a circulating spray flow path. A first water pump 401 is provided on the spray pipe. When the first water pump 401 is running, the washing water in the fabric processing cylinder 10 can enter the cleaning chamber 202 through the water inlet of the spray pipe, and after being filtered by the filter screen 201, it can be discharged back to the fabric processing cylinder 10 from the water outlet of the spray pipe, so that the fabric processing device can operate a circulating spray washing.

[0091] Methods for dealing with dirt and blockage include:

[0092] When the fabric processing equipment is running a circulating spray washing process, the washing status information of the fabric processing equipment is obtained, and it is determined whether the washing status information meets the requirements.

[0093] If so, then it is confirmed that filter 201 is not clogged;

[0094] If not, then filter 201 is confirmed to be clogged.

[0095] The washing status information includes at least one of the following: water level change information in the fabric treatment drum and water flow rate change information in the spray pipe.

[0096] In this embodiment, a filter screen 201 is installed in the circulating spray device 20 to filter the circulating spray water. At the same time, by acquiring the washing status information of the fabric processing equipment when the circulating spray washing is running, it is possible to determine in a timely manner whether the filter screen 201 is dirty and clogged, so as to avoid the problem of poor circulating spray washing effect caused by the filter screen 201 being dirty and clogged and not being cleaned in time.

[0097] Furthermore, in some possible implementations, acquiring the washing status information of the fabric treatment equipment and determining whether the washing status information meets the requirements includes:

[0098] Determine whether the water level change information in the fabric treatment cylinder and the water flow rate change information in the spray pipe meet the requirements;

[0099] If so, then it is confirmed that filter 201 is not clogged;

[0100] If not, then filter 201 is confirmed to be clogged.

[0101] In this embodiment of the application, by judging whether multiple washing status information meets the requirements, it is possible to more accurately determine whether the filter screen 201 is clogged, avoiding the problem that inaccurate judgment may occur if only one parameter information is obtained.

[0102] Furthermore, in some possible implementations, the water level change information in the fabric treatment tube includes the water level change value of the fabric treatment tube within a first preset time period, and the water flow rate change information in the spray pipe includes the average water flow rate of the spray pipe within a second preset time period.

[0103] Methods for dealing with clogged filters include:

[0104] Determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and determine whether the average water flow rate of the spray pipe within the second preset time period is less than the preset average value;

[0105] If the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, then it is determined that the filter screen 201 is clogged.

[0106] If the water level change value of the fabric treatment cylinder within the first preset time period is not less than the preset change value, and / or the average water flow rate of the spray pipe within the second preset time period is not less than the preset average value, then it is determined that the filter screen 201 is not clogged.

[0107] It should be noted that if the filter screen 201 is clogged, the washing water cannot pass through the spray pipe during the circulating spray washing, and the water level in the fabric treatment drum 10 changes very little; if the filter screen is not clogged, the washing water will pass through the spray pipe and the water level in the fabric treatment drum 10 will change significantly over a certain period of time; similarly, if the filter screen 201 is clogged, the water flow rate in the spray pipe is small, and when the filter screen 201 is not clogged, the water flow rate in the spray pipe is large.

[0108] Furthermore, in some possible implementations, determining whether the water level change value of the fabric treatment cylinder within a first preset time period is less than a preset change value, and determining whether the average water flow rate of the spray pipe within a second preset time period is less than a preset average value, includes:

[0109] First, determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value;

[0110] If the water level change value of the fabric treatment cylinder is less than the preset change value within the first preset time period, then check whether the average water flow rate of the further spray pipe is less than the preset average value within the second preset time period.

[0111] If the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, it is determined that the filter screen 201 is clogged.

[0112] If the average water flow rate of the spray pipe within the second preset time period is not less than the preset average value, then it is determined that the filter screen 201 is not clogged.

[0113] The reason why the water level change is obtained first in this embodiment of the application, and the water flow rate in the spray pipe is obtained after the water level change does not meet the requirements, is that if there is insufficient washing water in the drum, the spray pipe will not be filled with water, causing the pump to run dry. The water flow rate detection of the spray pipe with air will also have a large error. Therefore, it is necessary to first determine whether the water level in the drum has reached the preset water level requirement.

[0114] Furthermore, in some possible implementations, a first spray pipe section is formed between the first water pump and the outlet of the spray pipe.

[0115] Determining whether the average water flow rate of the sprinkler pipe within a second preset time period is less than a preset average includes:

[0116] Determine whether the average water flow rate of the first spray pipe section within the second preset time period is less than the preset average value.

[0117] The reason for determining the water flow rate between the first water pump and the outlet of the spray pipe in this embodiment is that the flow rate at this location is more stable than the flow rate at other locations. This is because the water flow rate is relatively uniform after being pumped out of the pump body, with little abnormal fluctuation. Furthermore, the purpose of water flow rate detection is to detect whether the pump body is blocked. Therefore, determining the water flow rate between the first water pump and the outlet of the spray pipe can more accurately reflect the dirt and blockage of the filter screen.

[0118] Furthermore, in some possible embodiments, the fabric treatment equipment also has a filter self-cleaning program. Under the filter self-cleaning program, the circulating spray washing is stopped and the fabric treatment drum 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.

[0119] Methods for dealing with clogged filters also include:

[0120] 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 of 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.

[0121] The washing process includes a pre-wash stage and a main wash stage that runs after the pre-wash stage.

[0122] 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.

[0123] Furthermore, in some possible implementations, 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:

[0124] 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.

[0125] It is worth noting that the heating element inside the fabric treatment drum is not working during the pre-wash stage. During this stage, the decision to restart the circulating spray washing process is made based on the drainage time to determine whether the filter screen is still clogged.

[0126] Furthermore, in some possible implementations, the filter clogging treatment method also includes:

[0127] 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.

[0128] 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.

[0129] Furthermore, in some possible implementations, determining whether to re-run the circulating spray washing during the pre-washing stage based on the drainage time to determine if the filter screen is still clogged includes:

[0130] 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.

[0131] 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.

[0132] Specifically, in combination Figure 2 As shown, when the fabric treatment equipment is operating in the pre-wash stage, the main steps include:

[0133] S1; The process has progressed to the pre-wash stage.

[0134] S2; Open the inlet valve of the main wash water pipe 60 and fill the water to the pre-wash water level;

[0135] S3; Turn on the circulating spray, and the water level sensor detects the water level in the fabric treatment cylinder;

[0136] S31; Read the water level value within time T1;

[0137] S32; Determine whether the water level change value S1 is lower than the preset water level change value. If the water level change value S1 is lower than the preset water level change value, execute step S4; otherwise, end the pre-wash.

[0138] S4; The flow meter detects the water flow rate between the first water pump and the spray nozzle;

[0139] S41; Read the flow rate value within T2 seconds and calculate the average flow rate K1;

[0140] S42; Determine if the average flow rate K1 is lower than the normal spray flow rate; If the average flow rate K1 is lower than 80% of the normal spray flow rate K0, execute the filter cleaning logic step S5; otherwise, end the pre-wash.

[0141] S5; Perform the filter self-cleaning procedure;

[0142] S51; Turn off the circulating spray, turn on the second water pump, drain to the empty cylinder level, turn off the second water pump, and start timing the second water pump's running time;

[0143] If the cumulative running time of the second water pump exceeds t0, exit the filter cleaning program and proceed to step S6; if it does not exceed t0, return to step S2.

[0144] S6; End of pre-wash stage, proceed to main wash stage.

[0145] Furthermore, in some possible implementations, 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:

[0146] 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.

[0147] Specifically, in combination Figure 3 As shown, when the fabric treatment equipment is running the main wash stage, it mainly includes the following steps:

[0148] S1: The machine has entered the main washing stage;

[0149] S2: Turn on the circulating spray and the water level sensor detects the water level inside the cylinder;

[0150] S21: Read the water level value within time T1;

[0151] S22: Determine whether the water level change value S2 is lower than the preset water level change value; if the water level change value S2 is lower than the preset water level change value, execute step S3; otherwise, end the pre-wash.

[0152] S3: The flow meter detects the water flow rate between the water pump and the spray nozzle;

[0153] S31: Read the flow rate per minute and calculate the average flow rate K2;

[0154] S32: Determine if the average flow rate K2 is lower than the normal spray flow rate; if the average flow rate K2 is lower than 80% of the normal spray flow rate K0, execute the filter cleaning logic step S4; otherwise, end the pre-wash.

[0155] S4: Perform the filter self-cleaning procedure;

[0156] 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;

[0157] S42: Open the inlet valve of the main wash water pipe to replenish water to the main wash water level and continue to turn on the circulating spray;

[0158] S5: Continue with normal main wash.

[0159] Furthermore, a second aspect of this application also provides a fabric processing apparatus, comprising:

[0160] Fabric processing tube 10, used to hold the garments to be processed;

[0161] 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.

[0162] 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.

[0163] Sensors and controllers are used to acquire washing status information of the fabric processing equipment, and the controllers are used to determine whether the filter 201 is dirty or clogged based on the washing status information.

[0164] In this embodiment, a filter screen 201 is installed in the circulating spray device 20 to filter the circulating spray water. At the same time, by acquiring the washing status information of the fabric processing equipment when the circulating spray washing is running, it is possible to determine in a timely manner whether the filter screen 201 is dirty and clogged, so as to avoid the problem of poor circulating spray washing effect caused by the filter screen 201 being dirty and clogged and not being cleaned in time.

[0165] Furthermore, in some possible embodiments, the circulating spray device 20 also includes a cleaning component 203 that is rotatably disposed within the cleaning chamber;

[0166] 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.

[0167] 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.

[0168] Furthermore, such as Figure 5 As shown, in some possible 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.

[0169] 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;

[0170] 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.

[0171] 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.

[0172] Furthermore, in some embodiments, the cleaning component 203 also includes:

[0173] An impeller 2032 is built into the cleaning chamber 202, and the impeller 2032 and the scraper 2031 are connected together;

[0174] 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.

[0175] When the washing water in the fabric treatment cylinder 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.

[0176] Further optimization:

[0177] like Figure 6As shown, the impeller described above 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 structure 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 impeller 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.

[0178] 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.

[0179] Furthermore, in some possible implementations, such as Figure 4 and Figure 5 As shown, the cleaning chamber 202 also has a second drain outlet 2023;

[0180] The fabric treatment equipment also includes spray piping, which includes:

[0181] 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.

[0182] 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.

[0183] Fabric processing equipment also includes:

[0184] 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.

[0185] The inlet pipe 30, the first drain pipe 40, and the second drain pipe 50 can all be controlled to open independently.

[0186] Furthermore, in some possible implementations, a first water pump is provided on the first drain pipe, and the first water pump 401 is used to pump the washing water in the cleaning chamber 202 into the fabric treatment cylinder 10.

[0187] 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.

[0188] 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.

[0189] Furthermore, in some possible implementations, the aforementioned sensors include a water level sensor disposed inside the fabric processing tube, and a flow sensor disposed between the first water pump and the outlet of the first drain pipe.

[0190] Furthermore, in some possible implementations, the aforementioned fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

[0191] 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. After the circulating spray is turned on, the water level in the fabric treatment cylinder is detected by a water level sensor and the water level change value is calculated. If it is lower than the preset water level change value, it indicates that there may be a filter blockage. Then, the flow rate of the water path between the first water pump and the spray nozzle is detected by a flow meter during the circulating spray washing stage and compared with the initial flow rate of the system to determine the lint blockage of the filter 201. Thus, the filter 201 is actively and promptly cleaned by the filter self-cleaning program.

[0192] 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.

[0193] 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.

[0194] 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.

[0195] 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 treatment equipment includes a fabric treatment cylinder (10) and a circulating spray device (20). The circulating spray device (20) includes a spray pipeline and a cleaning chamber (202) between the pipeline inlet and the pipeline outlet of the spray pipeline. A filter screen (201) is built into the cleaning chamber (202). The spray pipeline is connected to the fabric treatment cylinder (10) through the pipeline inlet and the pipeline outlet to form a circulating spray flow path. A first water pump (401) is provided on the spray pipeline. When the first water pump (401) is running, the washing water in the fabric treatment cylinder (10) can enter the cleaning chamber (202) through the water inlet of the spray pipeline, and after being filtered by the filter screen (201), it is discharged back to the fabric treatment cylinder (10) from the water outlet of the spray pipeline, so that the fabric treatment equipment can operate a circulating spray washing. The method for treating dirt blockage includes: When the fabric processing equipment is running a cyclic spray washing process, the washing status information of the fabric processing equipment is acquired, and it is determined whether the washing status information meets the requirements. If so, then it is determined that the filter (201) is not clogged; If not, then it is determined that the filter screen (201) is clogged; The washing status information includes at least one of the water level change information in the fabric treatment drum and the water flow rate change information in the spray pipe; The water level change information in the fabric treatment cylinder includes the water level change value of the fabric treatment cylinder within a first preset time period, and the water flow rate change information in the spray pipe includes the average water flow rate of the spray pipe within a second preset time period. The method for treating filter clogging includes: Determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and determine whether the average water flow rate of the spray pipe within the second preset time period is less than the preset average value; If the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, and the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, then it is determined that the filter screen (201) is clogged. If the water level change value of the fabric treatment cylinder within the first preset time period is not less than the preset change value, and / or the average water flow rate of the spray pipe within the second preset time period is not less than the preset average 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, The determination of whether the water level change value of the fabric treatment cylinder within a first preset time period is less than a preset change value, and the determination of whether the average water flow rate of the spray pipe within a second preset time period is less than a preset average value, include: First, determine whether the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value; If the water level change value of the fabric treatment cylinder within the first preset time period is less than the preset change value, then it is further determined whether the average water flow rate of the spray pipe within the second preset time period is less than the preset average value. If the average water flow rate of the spray pipe within the second preset time period is less than the preset average value, it is determined that the filter screen (201) is clogged. If the average water flow rate of the spray pipe within the second preset time period is not less than the preset average value, then it is determined that the filter screen (201) is not clogged.

3. The method for treating filter clogging according to claim 1, characterized in that, A first spray pipe section is formed between the first water pump and the outlet of the spray pipe; The determination of whether the average water flow rate of the spray pipe within a second preset time period is less than a preset average includes: Determine whether the average water flow rate of the first spray pipe section within a second preset time period is less than the preset average value.

4. The method for treating filter clogging according to any one of claims 1-3, characterized in that, The fabric treatment equipment also has a filter self-cleaning program. Under the filter 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. 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 of 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 phases include a pre-wash phase and a main wash phase that runs after the pre-wash phase.

5. The method for treating filter clogging according to claim 4, 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.

6. The method for treating filter clogging according to claim 5, 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.

7. The method for treating filter clogging according to claim 6, 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.

8. The method for treating filter clogging according to claim 4, 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.

9. A fabric treatment device, characterized in that, The filter clogging treatment method according to any one of claims 1-8, wherein the fabric treatment equipment comprises: 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 washing status information of the fabric processing equipment, and the controller is used to determine whether the filter (201) is dirty or clogged based on the washing status information.

10. The fabric processing equipment according to claim 9, 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.

11. The fabric processing equipment according to claim 10, 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 filter screen (201) and in contact with 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).

12. The fabric processing equipment according to claim 11, 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).

13. The fabric processing equipment according to claim 9, characterized in that, The cleaning chamber (202) also has a second drain outlet (2023); The fabric treatment equipment further includes a spray pipeline, which comprises: 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 fabric processing equipment also includes: 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.

14. The fabric processing equipment according to claim 13, characterized in that, The first drain pipe is equipped with the first water pump, which 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.

15. The fabric processing equipment according to claim 14, characterized in that, The sensors include a water level sensor located inside the fabric processing tube and a flow sensor located between the first water pump and the outlet of the first drain pipe.

16. The fabric processing equipment according to claim 9, characterized in that, The fabric processing equipment is a drum washing machine or a drum washer-dryer combo.

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