Filter screen filth blockage treatment method of fabric treatment equipment and fabric treatment equipment

Abstract

The invention provides a filter screen filth blockage treatment method of fabric treatment equipment and the fabric treatment equipment, and belongs to the field of fabric treatment equipment. The fabric processing equipment comprises a fabric processing barrel 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 processing barrel through a water inlet and a water outlet to form a circulating spraying flow path, and a first water pump is arranged on the spraying pipeline. When the first water pump runs, washing water in the fabric treatment barrel enters the cleaning cavity through the water inlet of the spraying pipeline, is filtered by the filter screen and then is discharged back into the fabric treatment barrel, so that the fabric treatment equipment runs to circularly spray and wash; the method comprises the following steps: acquiring washing state information of the fabric processing equipment when the fabric processing equipment runs circulating spray washing, and judging whether the washing state information meets requirements or not; if yes, determining that the filter screen has no filth blockage condition; and if not, determining that the filter screen has filth blockage.

Description

Technical Field

[0001] The present application relates to the technical field of fabric processing equipment, and in particular to a method for processing filter blockage of fabric processing equipment and a fabric processing equipment. Background Art

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

[0003] However, during the washing process, dandruff is generated. In order to prevent the dandruff from clogging the circulating spray device, a filter is usually provided in the circulating spray device. The filter can effectively isolate the dandruff in the water path.

[0004] However, when the hair debris on the filter screen accumulates to a certain extent, if it 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] In order to overcome the problem that the filter in the existing fabric processing equipment is not cleaned in time and easily affects the circulating spray washing effect of the fabric processing equipment, the embodiment of the present invention proposes a method for processing dirty and blocked filters of fabric processing equipment and a fabric processing equipment, which filters the circulating spray water by setting a filter in the circulating spray device, and at the same time obtains the washing status information of the fabric processing equipment when the fabric processing equipment is running the circulating spray washing, so as to timely determine whether the filter is dirty and blocked, and avoid the problem that the filter is dirty and blocked and is not cleaned in time, resulting in poor circulating spray washing effect. Specifically:

[0006] In a first aspect, an embodiment of the present application provides a method for treating dirt and blockage of a fabric treatment device, wherein the fabric treatment device comprises a fabric treatment drum and a circulating spray device, wherein the circulating spray device comprises a spray pipeline and a cleaning chamber arranged between a pipeline inlet and a pipeline outlet of the spray pipeline, wherein a filter is built in the cleaning chamber, and the spray pipeline is connected to the fabric treatment drum through a pipeline inlet and a pipeline outlet to form a circulating spray flow path, wherein a first water pump is arranged on the spray pipeline, wherein when the first water pump is in operation, washing water in the fabric treatment drum can enter the cleaning chamber through a water inlet of the spray pipeline, and after being filtered through the filter, be discharged back to the fabric treatment drum from a water outlet of the spray pipeline, so that the fabric treatment device can perform circulating spray washing;

[0007] Dirt blockage treatment methods include:

[0008] When the fabric processing device runs a cyclic spray washing, the washing state information of the fabric processing device is obtained, and it is determined whether the washing state information meets the requirements;

[0009] If so, make sure the filter is not dirty or blocked;

[0010] If not, it is determined that the filter is dirty and blocked;

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

[0012] In the above technical solution, obtaining the washing status information of the fabric processing device and judging whether the washing status information meets the requirements include:

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

[0014] If so, make sure the filter is not dirty or blocked;

[0015] If not, it is determined that the filter is dirty and blocked.

[0016] In the above technical solution, the water level change information in the fabric treatment drum includes the water level change value of the fabric treatment drum within a first preset time length, and the water flow change information in the spray pipeline includes the average water flow rate of the spray pipeline within a second preset time length;

[0017] The methods for dealing with dirty filter blockage include:

[0018] Determining whether a water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and determining whether an average water flow rate of the spray pipeline within a second preset time period is less than a preset average value;

[0019] If the water level change value of the fabric treatment drum 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, it is determined that the filter screen is dirty and blocked;

[0020] If the water level change value of the fabric treatment drum within the first preset time period is not less than the preset change value, and / or the average water flow rate of the spray pipeline within the second preset time period is not less than the preset average value, it is determined that the filter screen is not dirty or blocked.

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

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

[0023] If the water level change value of the fabric treatment drum within the first preset time period is less than the preset change value, further checking whether the average water flow rate of the spray pipeline within the second preset time period is less than the preset average value;

[0024] If the average water flow rate of the sprinkler pipe within the second preset time period is less than the preset average value, it is determined that the filter screen is dirty and blocked;

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

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

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

[0028] It is determined 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 device also has a filter self-cleaning program. In the filter self-cleaning program, the circulating spray washing is stopped and the fabric treatment drum is controlled to drain water, and the washing water can be discharged into the cleaning chamber and discharged from the cleaning chamber after being filtered by the filter. The circulating spray device also includes a cleaning member rotatably arranged in the cleaning chamber, wherein the cleaning member can rotate under the impact of the water flow entering the cleaning chamber, and clean the surface of the filter by contacting with the filter during rotation.

[0030] The methods for dealing with dirty filter blockage also include:

[0031] When it is determined that the filter is dirty and clogged, the fabric processing device is controlled to run a filter self-cleaning program, and the water level of the fabric processing drum after the filter self-cleaning program is run is controlled according to the current washing stage of the fabric processing device;

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

[0033] In the above technical solution, according to the current washing stage of the fabric treatment device, the water level of the fabric treatment drum after the filter self-cleaning program is run is controlled, including:

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

[0035] In the above technical solution, the filter screen dirty blockage treatment method also includes:

[0036] When the filter self-cleaning program is executed in the pre-wash stage, the drainage time of the fabric treatment device when draining the washing water in the fabric treatment drum to the empty drum water level is calculated, and based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-wash stage to determine whether the filter is still dirty and blocked.

[0037] In the above technical solution, whether to re-run the cyclic spray washing in the pre-washing stage to judge whether the filter is still dirty and blocked is determined according to the drainage time, including:

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

[0039] If the drainage time does not exceed the preset drainage time, re-run the circulating spray washing in the pre-wash stage, and determine whether the filter is still dirty or blocked under the circulating spray washing.

[0040] In the above technical solution, according to the current washing stage of the fabric treatment device, the water level of the fabric treatment drum after the filter self-cleaning program is run is controlled, including:

[0041] If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

[0042] A second aspect of an embodiment of the present application provides a fabric processing device, comprising:

[0043] A fabric treatment drum, the fabric treatment drum is used to contain clothes to be treated;

[0044] A circulating spray device, the circulating spray device comprises a cleaning chamber with a built-in filter screen, the cleaning chamber having a water inlet and a first drain outlet communicated with the fabric treatment cylinder;

[0045] a first water pump, wherein the first water pump is capable of discharging the washing water in the fabric treatment drum into the cleaning chamber when in operation, and then discharging the washing water from the cleaning chamber back into the fabric treatment drum after being filtered by the filter screen;

[0046] The sensor and controller are used to obtain the washing status information of the fabric processing equipment, and the controller is used to determine whether the filter is dirty or blocked according to the washing status information.

[0047] In the above technical solution, the circulating spray device further comprises a cleaning member rotatably disposed in the cleaning chamber;

[0048] When water enters the cleaning cavity, the cleaning element can rotate under the impact of the incoming water flow, and clean the surface of the filter screen by contacting with the filter screen during the 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 communicating with the cleaning chamber through the filter mesh holes, and the cavity is communicated with the first drain port;

[0050] The cleaning member comprises a scraper strip which is sleeved on the outer periphery of the cylindrical filter screen and is in contact with the outer peripheral surface of the filter screen;

[0051] When water enters the cleaning chamber, the scraper bar can be driven to rotate around the periphery of the filter screen to scrape and clean the peripheral surface of the filter screen.

[0052] In the above technical solution, the cleaning element further comprises:

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

[0054] When water enters the cleaning chamber, the impeller can rotate under the impact of the incoming water flow, so as to drive the scraper bar to rotate around the periphery of the filter screen to scrape and clean the peripheral surface of the filter screen.

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

[0056] The fabric processing equipment also includes a spray pipeline, which includes:

[0057] a water inlet pipe connected between the water inlet of the cleaning chamber and the bottom of the fabric treatment drum, and used for receiving washing water from the fabric treatment drum;

[0058] A first drain pipe, the first drain pipe is connected between the first drain port of the cleaning chamber and the top of the fabric treatment drum, and is used to drain the filtered washing water in the cleaning chamber into the fabric treatment drum again;

[0059] Fabric processing equipment also includes:

[0060] a second drain pipe, the second drain pipe is connected to the second drain port of the cleaning chamber and is used to drain water in the cleaning chamber;

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

[0062] In the above technical solution, a first water pump is provided on the first drainage pipe, 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 provided on the second drain pipe or at the second drain outlet, and the second water pump is used to discharge the washing water in the cleaning chamber out of the fabric processing device;

[0064] The fabric treatment device further comprises a main wash water pipe having a water inlet valve, and when the water inlet valve is opened, washing water can be injected into the fabric treatment tub through the main wash water pipe.

[0065] In the above technical solution, the sensor includes a water level sensor arranged in the fabric processing drum, and a flow sensor arranged between the first water pump and the water outlet of the first drain pipe.

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

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

[0068] In the embodiment of the present application, a filter is set in the circulating spray device to filter the circulating spray water. At the same time, by obtaining the washing status information of the fabric processing equipment when the fabric processing equipment is running the circulating spray washing, it is possible to timely determine whether the filter is dirty or blocked, thereby avoiding the problem of poor circulating spray washing effect caused by the filter being dirty and blocked and not being cleaned in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 The control flow of the method for treating dirt and blockage of fabric processing equipment in the embodiment of the present invention is as follows Figure 1 ;

[0070] Figure 2 The control flow of the method for treating dirt and blockage of fabric processing equipment in the embodiment of the present invention is as follows Figure 2 ;

[0071] Figure 3 The control flow of the dirty blockage treatment method of the fabric processing equipment in the embodiment of the present invention is as follows Figure 3 ;

[0072] Figure 4 It is a schematic diagram of the overall structure of a fabric processing device according to an embodiment of the present invention;

[0073] Figure 5 It is a cross-sectional structural schematic diagram of a circulating spray device in an embodiment of the present invention;

[0074] Figure 6 It is a schematic diagram of the three-dimensional structure of the impeller in the embodiment of the invention.

[0075] in:

[0076] 10-Clothes treatment drum;

[0077] 20-circulation spray device; 201-filter screen; 202-cleaning chamber; 2021-water inlet; 2022-first drain outlet; 2023-second drain outlet; 203-cleaning member; 2031-scraper; 2032-impeller;

[0078] 30-water inlet pipe;

[0079] 40-first drainage pipe; 401-first water pump; 402-second water pump;

[0080] 50 - Second drain pipe;

[0081] 60-Main wash water pipe. DETAILED DESCRIPTION

[0082] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0083] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context dictates otherwise. The meanings identified below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0084] In the description of the present 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, when used multiple times, does not necessarily refer to the same embodiment, 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 dictates otherwise. The term "based on" is not exclusive and allows for additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" means "used as an example, instance or illustration" in this article. Any embodiment described herein as "exemplary" is not necessarily interpreted as being superior or superior to other embodiments. The scope of the present 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 only to set forth some of the many possible embodiments of the claimed invention. The various embodiments provided by the present invention should not be interpreted as limiting the scope of protection of the present invention.

[0085] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0089] Example

[0090] like Figure 1-Figure 6 As shown, the first aspect of the embodiment of the present application provides a method for treating dirt and blockage of a fabric treatment device, wherein the fabric treatment device comprises a fabric treatment drum 10 and a circulating spray device 20, wherein the circulating spray device 20 comprises a spray pipeline and a cleaning chamber 202 arranged between a pipeline inlet and a pipeline outlet of the spray pipeline, wherein a filter screen 201 is built in the cleaning chamber 202, and the spray pipeline is connected to the fabric treatment drum 10 through a pipeline inlet and a pipeline outlet to form a circulating spray flow path, wherein a first water pump 401 is arranged on the spray pipeline, wherein when the first water pump 401 is in operation, the washing water in the fabric treatment drum 10 can enter the cleaning chamber 202 through a water inlet of the spray pipeline, and after being filtered by the filter screen 201, it is discharged back to the fabric treatment drum 10 from a water outlet of the spray pipeline, so that the fabric treatment device can perform circulating spray washing;

[0091] Dirt blockage treatment methods include:

[0092] When the fabric processing device runs a cyclic spray washing, the washing state information of the fabric processing device is obtained, and it is determined whether the washing state information meets the requirements;

[0093] If yes, it is determined that the filter 201 is not dirty or blocked;

[0094] If not, it is determined that the filter 201 is dirty and blocked;

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

[0096] In the embodiment of the present application, a filter 201 is provided in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the washing status information of the fabric processing equipment when the fabric processing equipment is running the circulating spray washing, it is possible to timely determine whether the filter 201 is dirty or blocked, thereby avoiding the problem of poor circulating spray washing effect caused by the filter 201 being dirty and blocked and not being cleaned in time.

[0097] Further, in some possible implementations, obtaining washing status information of the fabric processing device and determining whether the washing status information meets the requirements include:

[0098] Determine whether the water level change information in the fabric treatment drum meets the requirements, and whether the water flow change information in the spray pipeline meets the requirements;

[0099] If yes, it is determined that the filter 201 is not dirty or blocked;

[0100] If not, it is determined that the filter screen 201 is dirty or clogged.

[0101] In the embodiment of the present application, by judging whether multiple washing status information all meet the requirements, it is possible to more accurately judge whether the filter 201 is clogged, thereby avoiding the problem of inaccurate judgment caused by obtaining only one parameter information.

[0102] Further, in some possible implementations, the water level change information in the fabric treatment drum includes the water level change value of the fabric treatment drum within a first preset time length, and the water flow change information in the spray pipeline includes the average water flow rate of the spray pipeline within a second preset time length;

[0103] The methods for dealing with dirty filter blockage include:

[0104] Determining whether a water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and determining whether an average water flow rate of the spray pipeline within a second preset time period is less than a preset average value;

[0105] If the water level change value of the fabric treatment drum 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, it is determined that the filter screen 201 is dirty and blocked;

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

[0107] It should be noted that if the filter 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 is not clogged, the washing water passes through the spray pipe and the water level in the fabric treatment drum 10 changes greatly over a period of time; similarly, if the filter 201 is clogged, the water flow in the spray pipe is small, and when the filter 201 is not clogged, the water flow in the spray pipe is large.

[0108] Further, in some possible implementations, determining whether a water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and determining whether an average water flow rate of the spray pipeline 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 processing drum within a first preset time period is less than a preset change value;

[0110] If the water level change value of the fabric treatment drum within the first preset time period is less than the preset change value, further checking whether the average water flow rate of the spray pipeline within the second preset time period is less than the preset average value;

[0111] If the average water flow rate of the spray pipe in the second preset time period is less than the preset average value, it is determined that the filter screen 201 is dirty and blocked;

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

[0113] In the embodiment of the present application, the water level change is obtained first, and when the water level change does not meet the requirements, the water flow rate in the spray pipe is obtained. This is because if there is insufficient washing water in the drum, the spray pipe will not be able to be filled with water, causing the pump body to run idle. The water flow detection of the spray pipe in the presence of air also has 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] Further, in some possible implementations, a first spray pipe section is formed between the first water pump and the water outlet of the spray pipe;

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

[0116] It is determined 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 why the water flow rate between the first water pump and the water outlet of the spray pipe is judged in the embodiment of the present application is that the flow rate at this section is more stable than the water flow rate at other flow positions. After the water is pumped out of the pump body, the water flow rate is relatively uniform without too many abnormal fluctuations, and the purpose of water flow detection is to detect whether the pump body is blocked. Therefore, when judging the water flow rate between the first water pump and the water outlet of the spray pipe, it can more accurately reflect the dirtiness and blockage of the filter.

[0118] Furthermore, in some possible embodiments, the fabric treatment device also has a filter self-cleaning program. In the filter self-cleaning program, the circulating spray washing is stopped and the fabric treatment drum 10 is controlled to drain water, and the washing water can be discharged into the cleaning chamber 202 and discharged from the cleaning chamber 202 after being filtered by the filter 201; the circulating spray device 20 also includes a cleaning member 203 rotatably arranged in the cleaning chamber 202, wherein the cleaning member 203 can rotate under the impact of the water flow entering the cleaning chamber 202, and clean the surface of the filter 201 by contacting with the filter 201 during rotation;

[0119] The methods for dealing with dirty filter blockage also include:

[0120] When it is determined that the filter 201 is dirty and clogged, the fabric processing device is controlled to run a filter self-cleaning program, and according to the current washing stage of the fabric processing device, the water level of the fabric processing drum 10 after the filter self-cleaning program is run is controlled;

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

[0122] In the embodiment of the present application, when the filter self-cleaning program is running, the water discharge from the fabric processing drum 10 is controlled, and the impact force during the water discharge can be utilized to drive the cleaning member 203 in the cleaning chamber 202 to rotate, thereby cleaning the filter 201 through the rotation of the cleaning member 203. The dust that falls off the filter 201 when it is being cleaned can be discharged from the cleaning chamber 202 along with the washing water.

[0123] Further, in some possible implementations, according to the current washing stage of the fabric treatment device, controlling the water level of the fabric treatment drum after the filter self-cleaning program is run includes:

[0124] If the current washing stage is the pre-wash stage, the water in the fabric treatment drum 10 is drained to the empty drum water level.

[0125] It is worth noting that the heating element in the fabric treatment drum is not working during the pre-wash stage. During this stage, it is determined whether to re-run the circulating spray washing during the pre-wash stage to determine whether the filter is still dirty or blocked based on the drainage time.

[0126] Furthermore, in some possible implementations, the filter screen dirty blockage treatment method further includes:

[0127] When the filter self-cleaning program is executed in the pre-wash 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 based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-wash stage to determine whether the filter is still dirty and blocked.

[0128] The reason why the drainage time is obtained in the pre-wash stage in the embodiment of the present application 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, thereby indirectly reflecting whether the filter can be fully cleaned within this drainage time.

[0129] Further, in some possible implementations, determining whether to re-run the cyclic spray washing in the pre-washing stage to judge whether the filter screen is still dirty and blocked is performed according to the drainage time, including:

[0130] If the drainage time exceeds the preset drainage time, it means that the drainage time is long enough, and the filter can be effectively cleaned for a long time by default, that is, the pre-wash stage can be ended at this time and the main wash stage can be entered;

[0131] If the drainage time does not exceed the preset drainage time, it means that the drainage time is not very long at this time, and it is impossible to determine whether the filter is fully cleaned. In this case, it is necessary to re-run the circulating spray washing in the pre-wash stage and re-obtain the operating parameters of the first water pump under the circulating spray washing to determine whether the filter is still dirty and blocked.

[0132] Specific, combined Figure 2 As shown, when the fabric treatment equipment runs the pre-wash stage, it mainly includes the following steps:

[0133] S1: Run to the washing pre-wash stage;

[0134] S2; open the water inlet valve of the main wash water pipe 60 and let water in 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 drum;

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

[0137] S32: Determine whether the water level change value S1 is lower than the preset water level change value. When 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 flow rate of the water path between the first water pump and the spray port;

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

[0140] S42; determine whether the average flow rate K1 is lower than the flow rate during normal spraying; when the average flow rate K1 is lower than 80% of the flow rate K0 during normal spraying, execute the filter cleaning logic S5 step, otherwise end the pre-washing;

[0141] S5: Execute the filter self-cleaning procedure;

[0142] S51: turn off the circulating spray, turn on the second water pump, drain to the empty cylinder water level, turn off the second water pump, and count the running time of the second water pump;

[0143] If the accumulated operation time of the second water pump exceeds t0, the filter cleaning procedure is exited and the process goes to S6; if it does not exceed t0, the process goes back to step S2;

[0144] S6: End the pre-wash phase and enter the main wash phase.

[0145] Further, in some possible implementations, according to the current washing stage of the fabric treatment device, controlling the water level of the fabric treatment drum after the filter self-cleaning program is run includes:

[0146] If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

[0147] Specific, combined Figure 3 As shown, when the fabric treatment equipment runs the main wash stage, it mainly includes the following steps:

[0148] S1: runs to the main wash stage;

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

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

[0151] S22: Determine whether the water level change value S2 is lower than the preset water level change value; when 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 between the water pump and the spray port;

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

[0154] S32: Determine whether the average flow rate K2 is lower than the flow rate during normal spraying; when the average flow rate K2 is lower than 80% of the flow rate K0 during normal spraying, execute the filter cleaning logic S4 step, otherwise end the pre-washing;

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

[0156] S41: Close the circulating spray, open the second water pump, discharge to the heating safety water level, and close the second water pump;

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

[0158] S5: Continue with normal main wash.

[0159] Furthermore, the second aspect of the embodiment of the present application also provides a fabric processing device, including:

[0160] A fabric treatment drum 10, the fabric treatment drum 10 is used to contain clothes to be treated;

[0161] The circulating spray device 20 includes a cleaning chamber with a filter screen 201 built in, and the cleaning chamber 202 has a water inlet 2021 and a first drain outlet 2022 connected to the fabric treatment cylinder 10;

[0162] A first water pump 401, when the first water pump 401 is in operation, the washing water in the fabric treatment drum 10 can be discharged into the cleaning chamber 202, and then discharged from the cleaning chamber 202 back into the fabric treatment drum 10 after being filtered by the filter screen 201;

[0163] The sensor and the controller are used to obtain the washing status information of the fabric processing device, and the controller is used to determine whether the filter 201 is dirty or blocked according to the washing status information.

[0164] In the embodiment of the present application, a filter 201 is provided in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the washing status information of the fabric processing equipment when the fabric processing equipment is running the circulating spray washing, it is possible to timely determine whether the filter 201 is dirty or blocked, thereby avoiding the problem of poor circulating spray washing effect caused by the filter 201 being dirty and blocked and not being cleaned in time.

[0165] Further, in some possible implementations, the circulating spray device 20 further includes a cleaning member 203 rotatably disposed in the cleaning chamber;

[0166] When water enters the cleaning chamber 202 , the cleaning member 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 the rotation.

[0167] In the embodiment of the present application, a cleaning member 203 capable of rotating under the impact of water flow is provided in the cleaning chamber 202. The surface of the filter 201 can be cleaned by the rotation of the cleaning member 203, thereby achieving a self-cleaning effect of the filter 201 through the drainage operation of the fabric treatment cylinder.

[0168] Further, such as Figure 5 As shown, in some possible implementations, the filter screen 201 includes a cylindrical mesh structure built into the cleaning chamber 202, and the filter screen 201 of the cylindrical mesh structure is surrounded by a cavity communicating with the cleaning chamber 202 through the filter mesh holes, and the cavity is communicated with the first drain port 2022;

[0169] The cleaning member 203 includes a scraper strip 2031 which is sleeved on the outer periphery of the cylindrical filter screen 201 and is in contact with the outer peripheral surface of the filter screen;

[0170] When water enters the cleaning chamber 202 , the scraper bar 2031 can be driven to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer peripheral surface of the filter screen 201 .

[0171] That is, when the washing water in the fabric treatment drum 10 enters the cleaning chamber 202 , the cleaning member 203 with the scraping bar 2031 in the cleaning chamber 202 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 member 203 further includes:

[0173] An impeller 2032 is built into the cleaning chamber 202, and the impeller 2032 and the scraper bar 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, so as to drive the scraper bar 2031 to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer peripheral surface of the filter screen 201 .

[0175] That is, when the washing water in the fabric treatment drum 10 enters the cleaning chamber 202 , the water flow impacts the impeller 2032 to rotate it, and the impeller 2032 drives the scraper 2031 to rotate, thereby achieving a cleaning effect on the surface of the filter screen 201 .

[0176] Further preferred:

[0177] like Figure 6As shown, the impeller is an inclined impeller, which can rotate automatically under the impact of the water flow at the water inlet. The cleaning part also includes a cleaning part motor that can be connected to the impeller. A clutch structure is provided between the cleaning part motor and the impeller shaft. The clutch structure can be used to control the connection and disconnection of the cleaning part motor and the impeller shaft. When the filter is seriously dirty and blocked, in order to avoid overloading the cleaning part motor, the clutch mechanism can be controlled to disconnect the cleaning part motor and the shaft, so that the impeller rotates completely under the action of the water flow to form a negative pressure on the water inlet, thereby facilitating the rapid inflow and discharge of the stored sewage.

[0178] It may be further preferred that the drain valve at the second drain outlet can be controlled to switch on and off according to preset rules. For example, when the filter is dirty and the drainage is seriously blocked, the drain valve can be controlled to switch on and off intermittently with a certain opening and stopping rhythm, so as to produce a turbulent effect on the water in the processing chamber, so that more dirt can be discharged with the oscillation of the water flow.

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

[0180] The fabric processing equipment also includes a spray pipeline, which includes:

[0181] A water inlet pipe 30, which 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] A first drain pipe 40, which is connected between the first drain port 2022 of the cleaning chamber 202 and the top of the fabric treatment drum 10, and is used to drain the filtered washing water in the cleaning chamber 202 back into the fabric treatment drum;

[0183] Fabric processing equipment also includes:

[0184] A second drain pipe 50, the second drain pipe 50 is connected to the second drain port 2023 of the cleaning chamber 202, and is used to drain water in the cleaning chamber 2023;

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

[0186] Further, 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 drum 10;

[0187] A second water pump 402 is disposed on the second drain pipe 50 or at the second drain port 2023 , and the second water pump 402 is used to discharge the washing water in the cleaning chamber 202 out of the fabric treatment device;

[0188] The fabric treatment apparatus further comprises a main wash water pipe 60 having a water inlet valve, and wash water can be injected into the fabric treatment tub 10 through the main wash water pipe 60 when the water inlet valve is opened.

[0189] Furthermore, in some possible implementations, the above-mentioned sensors include a water level sensor disposed in the fabric treatment drum, and a flow sensor disposed between the first water pump and the water outlet of the first drain pipe.

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

[0191] In summary, the embodiments of the present application provide a device with a circulating spray filter self-cleaning function and a control method for filter cleaning. After the circulating spray is turned on, the water level in the fabric treatment drum 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 the filter may be clogged. The flow meter is then used to detect the water flow between the first water pump and the spray port during the circulating spray washing stage, and it is compared with the initial flow of the system to determine the lint blockage of the filter 201, so that the filter 201 can be cleaned actively and promptly using the filter self-cleaning program.

[0192] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

[0193] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does not represent the superiority or inferiority of the embodiments.

[0194] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0195] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for treating filter blockage of a fabric processing device, characterized in that: The fabric treatment device comprises a fabric treatment drum (10) and a circulating spray device (20), wherein the circulating spray device (20) comprises a spray pipeline and a cleaning chamber (202) arranged between a pipeline inlet and a pipeline outlet of the spray pipeline, wherein a filter screen (201) is built in the cleaning chamber (202), and the spray pipeline is connected to the fabric treatment drum (10) through a pipeline inlet and a pipeline outlet to form a circulating spray flow path, wherein a first water pump (401) is arranged on the spray pipeline, wherein when the first water pump (401) is in operation, washing water in the fabric treatment drum (10) can enter the cleaning chamber (202) through a water inlet of the spray pipeline, and after being filtered by the filter screen (201), the washing water is discharged back to the fabric treatment drum (10) from a water outlet of the spray pipeline, so that the fabric treatment device operates a circulating spray washing; The dirty blockage treatment method comprises: When the fabric processing device runs a cyclic spray washing, obtaining washing status information of the fabric processing device, and determining whether the washing status information meets the requirements; If yes, it is determined that the filter screen (201) is not dirty or blocked; If not, it is determined that the filter screen (201) is dirty and clogged; The washing status information includes at least one of water level change information in the fabric treatment drum and water flow change information in the spray pipeline.

2. The method for treating filter screen clogging according to claim 1, characterized in that: The water level change information in the fabric treatment drum includes the water level change value of the fabric treatment drum within a first preset time length, and the water flow change information in the spray pipeline includes the average water flow rate of the spray pipeline within a second preset time length; The filter screen dirty blockage treatment method comprises: Determining whether a water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and determining whether an average water flow rate of the spray pipeline within a second preset time period is less than a preset average value; If the water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and the average water flow rate of the spray pipeline within a second preset time period is less than a preset average value, it is determined that the filter screen (201) is dirty and clogged; If the water level change value of the fabric treatment drum within the first preset time period is not less than the preset change value, and / or the average water flow rate of the spray pipeline within the second preset time period is not less than the preset average value, it is determined that the filter screen (201) is not dirty or blocked.

3. The method for treating filter screen fouling according to claim 2, characterized in that: The method of judging whether the water level change value of the fabric treatment drum within a first preset time period is less than a preset change value, and judging whether the average water flow rate of the spray pipeline within a second preset time period is less than a preset average value, comprises: First, determine whether the water level change value of the fabric treatment drum within a first preset time period is less than a preset change value; If the water level change value of the fabric treatment drum within the first preset time period is less than the preset change value, further checking whether the average water flow rate of the spray pipeline within the second preset time period is less than the preset average value; If the average water flow rate of the spray pipeline within the second preset time period is less than the preset average value, it is determined that the filter screen (201) is dirty and blocked; If the average value of the water flow rate in the spray pipeline within the second preset time period is not less than the preset average value, it is determined that the filter screen (201) is not dirty or blocked.

4. The method for treating filter screen clogging according to claim 2, characterized in that: A first spray pipe section is formed between the first water pump and the water outlet of the spray pipe; The step of determining whether the average water flow rate of the sprinkler pipe within the second preset time period is less than a preset average value includes: Determine whether an average water flow rate of the first spray pipe section within a second preset time period is less than a preset average value.

5. The method for treating filter screen fouling according to any one of claims 1 to 4, characterized in that: The fabric treatment device also has a filter self-cleaning program, in which the circulating spray washing is stopped and the fabric treatment cylinder (10) is controlled to drain water, so that the washing water can be discharged into the cleaning chamber (202) and discharged from the cleaning chamber (202) after being filtered by the filter (201); the circulating spray device (20) also includes a cleaning member (203) rotatably arranged in the cleaning chamber (202), wherein the cleaning member (203) can rotate under the impact of the water flow entering the cleaning chamber (202), and clean the surface of the filter (201) by contacting the filter (201) during the rotation; The filter screen dirty blockage treatment method also includes: When it is determined that the filter screen (201) is dirty and clogged, the fabric processing device is controlled to run a filter screen self-cleaning program, and according to the current washing stage of the fabric processing device, the water level of the fabric processing drum (10) after the filter screen self-cleaning program is run; The washing stage includes a pre-wash stage and a main wash stage which is run after the pre-wash stage.

6. The method for treating filter screen clogging according to claim 5, characterized in that: The method of controlling the water level of the fabric treatment drum after the filter self-cleaning program is run according to the current washing stage of the fabric treatment device comprises: If the current washing stage is the pre-wash stage, the water in the fabric treatment drum (10) is drained to the empty drum water level.

7. The method for treating filter screen clogging according to claim 6, characterized in that: The filter screen dirty blockage treatment method also includes: When the filter self-cleaning program is executed in the pre-washing stage, the drainage time of the fabric processing device when the washing water in the fabric processing drum (10) is drained to the empty drum water level is calculated, and based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-washing stage to judge whether the filter is still dirty and blocked.

8. The method for treating filter screen clogging according to claim 7, characterized in that: The determining whether to re-run the cyclic spray washing in the pre-washing stage according to the drainage time to judge whether the filter screen is still dirty and blocked includes: If the drainage time exceeds the preset drainage time, the pre-wash phase ends and the main wash phase begins; If the drainage time does not exceed the preset drainage time, re-run the circulating spray washing in the pre-wash stage, and determine whether the filter is still dirty or blocked under the circulating spray washing.

9. The method for treating filter screen clogging according to claim 5, characterized in that: The method of controlling the water level of the fabric treatment drum after the filter self-cleaning program is run according to the current washing stage of the fabric treatment device comprises: If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

10. A fabric processing device, characterized in that: include: A fabric treatment drum (10), the fabric treatment drum (10) being used to contain clothes to be treated; A circulating spray device (20), the circulating spray device (20) comprising a cleaning chamber with a built-in filter screen (201), the cleaning chamber (202) having a water inlet (2021) and a first water outlet (2022) connected to the fabric treatment cylinder (10); a first water pump (401), which, when in operation, enables the washing water in the fabric treatment drum (10) to be discharged into the cleaning chamber (202), and then discharged from the cleaning chamber (202) back into the fabric treatment drum (10) after being filtered by the filter net (201); A sensor and a controller, the sensor being used to obtain washing status information of a fabric processing device, and the controller being used to determine whether the filter (201) is dirty or blocked based on the washing status information.

11. The fabric processing device according to claim 10, characterized in that: The circulating spray device (20) further comprises a cleaning member (203) rotatably disposed in the cleaning chamber; When water enters the cleaning chamber (202), the cleaning element (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.

12. The fabric processing device according to claim 11, characterized in that: The filter screen (201) comprises a columnar mesh structure built into the cleaning chamber (202); the filter screen (201) of the columnar mesh structure is arranged to form a cavity communicating with the cleaning chamber (202) through filter mesh holes; the cavity is communicated with the first drain port (2022); The cleaning member (203) comprises a scraper strip (2031) sleeved on the outer periphery of the cylindrical filter screen (201) and in contact with the outer peripheral surface of the filter screen; The scraper bar (2031) can be driven to rotate around the periphery of the filter screen (201) when water enters the cleaning chamber (202), so as to scrape and clean the outer peripheral surface of the filter screen (201).

13. The fabric processing device according to claim 12, characterized in that: The cleaning member (203) further comprises: An impeller (2032) built into the cleaning chamber (202), the impeller (2032) and the scraper bar (2031) being 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 periphery of the filter screen (201) to scrape and clean the outer peripheral surface of the filter screen (201).

14. The fabric processing device according to claim 10, characterized in that: The cleaning chamber (202) further comprises a second drainage port (2023); The fabric processing device further comprises a spray pipeline, and the spray pipeline comprises: a water inlet pipe (30), the water inlet pipe (30) being connected between the water inlet (2021) of the cleaning chamber (202) and the bottom of the fabric treatment drum (10), and being used for receiving washing water from the fabric treatment drum (10); a first drain pipe (40), the first drain pipe (40) being connected between the first drain port (2022) of the cleaning chamber (202) and the top of the fabric treatment drum (10), and being used for draining the filtered washing water in the cleaning chamber (202) back into the fabric treatment drum; The fabric processing device also includes: a second drainage pipe (50), the second drainage pipe (50) being connected to a second drainage port (2023) of the cleaning chamber (202) and being used for draining water in the cleaning chamber (2023); The water inlet pipe (30), the first drainage pipe (40) and the second drainage pipe (50) can all be controlled to open individually.

15. The fabric processing device according to claim 14, characterized in that: The first water pump is provided on the first drainage pipe, and the first water pump (401) is used to pump the washing water in the cleaning chamber (202) into the fabric treatment drum (10); A second water pump (402) is provided on the second drainage pipe (50) or at the second drainage port (2023), and the second water pump (402) is used to discharge the washing water in the cleaning chamber (202) out of the fabric treatment device; The fabric treatment device further comprises a main wash water pipe (60) having a water inlet valve, and when the water inlet valve is opened, wash water can be injected into the fabric treatment drum (10) through the main wash water pipe (60).

16. The fabric processing device according to claim 15, characterized in that The sensor includes a water level sensor disposed in the fabric treatment drum, and a flow sensor disposed between the first water pump and the first drain pipe outlet.

17. The fabric processing device according to claim 10, characterized in that: The fabric processing device is a drum-type washing machine or a drum-type washer-dryer.

Images