Water supply equipment flow detection method, device and water purifier

Abstract

The present invention relates to a flow detection method, device and water purifier for water supply equipment, wherein the water supply equipment comprises a water storage tank, wherein a high water level probe and a low water level probe are arranged in the water storage tank, and the method comprises: obtaining the total capacity of the water storage tank; obtaining the emptying time of the full capacity of water in the water storage tank according to the high water level probe and the low water level probe; and obtaining the theoretical water outlet flow rate according to the total capacity and the emptying time. The present invention can obtain the theoretical water outlet flow rate according to the high water level probe and the low water level probe, without the need for a flow meter, thereby reducing the cost of the water supply equipment and facilitating the water supply equipment to control the actual water outlet flow rate.

Description

Technical Field

[0001] The present invention relates to the field of small household appliances, and in particular to a flow detection method and device for water supply equipment and a water purifier. Background Art

[0002] Water heaters, water dispensers, water purifiers and other water supply equipment are commonly used household appliances. Meeting the various needs of users is the development direction of water supply equipment.

[0003] The most basic requirement of users for water supply equipment is a constant outlet water temperature. However, even the most powerful water supply equipment has a heating process. Therefore, in order to achieve a constant outlet water temperature, the water supply equipment needs to control the outlet water flow rate, that is, to control the outlet water flow rate to achieve the purpose of a constant outlet water temperature. In addition, other functions of the water supply equipment also require monitoring and detection of the inlet and outlet water flows.

[0004] In the prior art, in order to monitor and detect the inflow and outflow of water, water supply equipment needs to add inflow flowmeters and outflow flowmeters, and the flowmeters are used to detect the inflow and outflow of water in real time. If the water supply equipment has multiple waterways, more flowmeters are required. The flowmeters will increase the hardware cost of the water supply equipment.

[0005] It can be seen that there is no low-cost detection method for detecting the outflow and inflow flow rates in the prior art. Summary of the invention

[0006] In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides a flow detection method and device for water supply equipment and a water purifier.

[0007] In a first aspect, the present invention provides a flow detection method for a water supply device, wherein the water supply device comprises a water storage tank, wherein a high water level probe and a low water level probe are provided in the water storage tank, and the method comprises:

[0008] Obtaining the total capacity of the water storage tank;

[0009] According to the high water level probe and the low water level probe, obtaining the emptying time of the full-capacity water in the water storage tank;

[0010] The theoretical water outflow rate is obtained according to the total capacity and the emptying time.

[0011] Optionally, obtaining the emptying time for emptying the full volume of water in the water storage tank according to the high water level probe and the low water level probe includes:

[0012] determining whether the water storage tank is full of capacity according to the high water level probe;

[0013] If the water storage tank is full, at the first moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0014] Acquiring a second time when the water level reaches the first water level by the low water level probe;

[0015] The clearing duration is obtained according to the difference between the second moment and the first moment.

[0016] Optionally, obtaining a theoretical water outflow rate according to the total capacity and the emptying time includes:

[0017] The theoretical water outflow rate is obtained by dividing the total capacity by the emptying time.

[0018] Optionally, the method further includes:

[0019] Get the water withdrawal time of any water withdrawal;

[0020] Obtaining the water filling time for filling the water storage tank after any water extraction;

[0021] The theoretical water inflow rate is obtained according to the water intake time, the water injection time and the theoretical water outflow rate.

[0022] Optionally, obtaining the water extraction time of any water extraction includes:

[0023] determining whether the water storage tank is full of capacity according to the high water level probe;

[0024] If the water storage tank is full, at the third moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0025] Obtaining a fourth moment when the water outlet valve is closed;

[0026] The water fetching duration is obtained according to the difference between the fourth moment and the third moment.

[0027] Optionally, obtaining the water filling time for filling the water storage tank after any water extraction includes:

[0028] Obtaining a fifth time when the water inlet pump is turned on to inject water after any water intake;

[0029] determining whether the water storage tank has reached full capacity according to the high water level probe;

[0030] If the water storage tank reaches full capacity, obtaining a sixth time when the water storage tank reaches full capacity;

[0031] The water injection duration is obtained according to the difference between the sixth moment and the fifth moment.

[0032] Optionally, obtaining a theoretical water inflow flow rate according to the water intake time, the water injection time and the theoretical water outflow flow rate includes:

[0033] Obtaining water intake capacity according to the product of the theoretical water outflow rate and the water intake time;

[0034] According to the water intake capacity, obtaining the water injection capacity;

[0035] The theoretical water inflow rate is obtained according to the water injection capacity and the water injection duration.

[0036] Optionally, the method further includes:

[0037] Divide 24 hours into multiple time periods;

[0038] The theoretical outflow rate and the theoretical inflow rate of each time period are obtained.

[0039] In a second aspect, a flow detection device for a water supply device is provided, wherein the water supply device comprises a water storage tank, wherein a high water level probe and a low water level probe are provided in the water storage tank, and the device comprises:

[0040] A capacity acquisition unit, used to acquire the total capacity of the water storage tank;

[0041] A timing unit, used for obtaining the emptying time of the full-capacity water in the water storage tank according to the high water level probe and the low water level probe;

[0042] The controller is used to obtain a theoretical water outlet flow rate according to the total capacity and the emptying time.

[0043] In a third aspect, a water purifier is provided, wherein the water purifier uses the method as described in any one of the above items.

[0044] The present invention relates to a flow detection method, device and water purifier for water supply equipment, wherein the water supply equipment comprises a water storage tank, wherein a high water level probe and a low water level probe are arranged in the water storage tank, and the method comprises: obtaining the total capacity of the water storage tank; obtaining the emptying time of the full capacity of water in the water storage tank according to the high water level probe and the low water level probe; and obtaining the theoretical water outlet flow rate according to the total capacity and the emptying time. The present invention can obtain the theoretical water outlet flow rate according to the high water level probe and the low water level probe, without the need for a flow meter, thereby reducing the cost of the water supply equipment and facilitating the water supply equipment to control the actual water outlet flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 The figure shows the application environment of the water supply equipment flow detection method according to the embodiment of the present invention;

[0048] Figure 2 It is a flow chart of a method for detecting flow rate of water supply equipment according to an embodiment of the present invention;

[0049] Figure 3 Shown is a structural block diagram of a flow detection device for water supply equipment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Figure 1 The figure shows the application environment of the water supply equipment flow detection method according to the embodiment of the present invention. Figure 1 The water supply equipment is shown, such as Figure 1 As shown, the water supply equipment includes a water storage tank 110. The water supply equipment also includes a water outlet pipe 150 and a water outlet valve 151, and a water inlet pipe 160 and a water inlet valve 161.

[0052] After the water outlet valve 151 is opened, the user can take water through the water outlet pipe 150 , that is, the water in the water storage tank can flow out through the water outlet pipe 150 .

[0053] After the water inlet valve 161 is opened, external water can enter the water supply device through the water inlet pipe 160 .

[0054] The water inlet valve 161 may also be referred to as a water inlet pump, and the water outlet valve 151 may also be referred to as a water outlet pump. The water inlet valve 161 and the water outlet valve 151 may be solenoid valves, and the water inlet flow rate and the water outlet flow rate may be controlled by power control.

[0055] The water supply device according to the embodiment of the present invention is not equipped with a flow meter, but a high water level probe 120 and a low water level probe 130 are arranged in the water storage tank.

[0056] Figure 2The flowchart of the method for detecting flow rate of water supply equipment according to an embodiment of the present invention is shown, and the method comprises:

[0057] Step 210, obtaining the total capacity of the water storage tank;

[0058] Step 220, obtaining the emptying time for emptying the full-capacity water in the water storage tank according to the high water level probe and the low water level probe;

[0059] Step 230: Obtain theoretical water outflow rate according to the total capacity and the emptying time.

[0060] In the method of the embodiment of the present invention, the total capacity of the water storage tank is preset at the factory and is usually constant.

[0061] The theoretical water outlet flow rate of the embodiment of the present invention can actually be regarded as the maximum flow rate of the water outlet valve / theoretical maximum flow rate. After knowing the theoretical water outlet flow rate, the actual water outlet amount of the water supply equipment can be controlled by controlling the power of the water outlet valve.

[0062] The high water level probe of the embodiment of the present invention can detect whether the water in the water tank has reached the highest water level. The water in the water tank reaching the highest water level is equivalent to the full capacity of the water in the water tank. The low water level probe can detect whether the water in the water tank has reached the lowest water level. The water in the water tank reaching the lowest water level is equivalent to the water in the water tank being emptied. Therefore, the method of the embodiment of the present invention can obtain the emptying time of the full capacity of water in the water tank through the high water level probe and the low water level probe, so as to obtain the theoretical water flow rate when the total capacity of the water tank is known, that is, the method of the embodiment of the present invention can obtain the theoretical water flow rate without setting a flow meter, which reduces the cost and is also conducive to the control of the actual water flow rate of the water supply equipment. The high water level probe and the low water level probe are necessary configurations in the water supply equipment with a water tank, which can prevent the overflow of water in the water tank and prevent the water tank from burning empty. Therefore, the method of the embodiment of the present invention can utilize the existing configuration of the water supply equipment.

[0063] In the embodiment of the present invention, the step of obtaining the emptying time for emptying the full volume of water in the water storage tank according to the high water level probe and the low water level probe includes:

[0064] determining whether the water storage tank is full of capacity according to the high water level probe;

[0065] If the water storage tank is full, at the first moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0066] Acquiring a second time when the water level reaches the first water level by the low water level probe;

[0067] The clearing duration is obtained according to the difference between the second moment and the first moment.

[0068] In the embodiment of the present invention, obtaining the theoretical water outflow rate according to the total capacity and the emptying time includes:

[0069] The theoretical water outflow rate is obtained by dividing the total capacity by the emptying time.

[0070] In the embodiment of the present invention, only a high water level probe and a low water level probe are configured, and it can be known whether the water storage tank is full or empty. Therefore, it is necessary to judge whether the water storage tank is full. If it is full, the emptying time can be obtained through the first moment and the second moment.

[0071] In the embodiment of the present invention, if the water storage tank is not full, it can be filled with water first, and then the emptying time is detected.

[0072] In the embodiment of the present invention, the theoretical water flow rate is L1,

[0073]

[0074] Among them, X is the total capacity, T2 is the second moment, and T1 is the first moment.

[0075] In an embodiment of the present invention, the method further includes:

[0076] Get the water withdrawal time of any water withdrawal;

[0077] Obtaining the water filling time for filling the water storage tank after any water extraction;

[0078] The theoretical water inflow rate is obtained according to the water intake time, the water injection time and the theoretical water outflow rate.

[0079] In the embodiment of the present invention, the step of obtaining the water extraction time of any water extraction includes:

[0080] determining whether the water storage tank is full of capacity according to the high water level probe;

[0081] If the water storage tank is full, at the third moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0082] Obtaining a fourth moment when the water outlet valve is closed;

[0083] The water fetching duration is obtained according to the difference between the fourth moment and the third moment.

[0084] In the embodiment of the present invention, the step of obtaining the water filling time required to fill the water storage tank after any water extraction includes:

[0085] Obtaining a fifth time at which the water inlet pump is turned on to inject water after any water intake;

[0086] determining whether the water storage tank has reached full capacity according to the high water level probe;

[0087] If the water storage tank reaches full capacity, obtaining a sixth time when the water storage tank reaches full capacity;

[0088] The water injection duration is obtained according to the difference between the sixth moment and the fifth moment.

[0089] In the embodiment of the present invention, the step of obtaining the theoretical water inflow flow rate according to the water intake time, the water injection time and the theoretical water outflow flow rate includes:

[0090] Obtaining water intake capacity according to the product of the theoretical water outflow rate and the water intake time;

[0091] According to the water intake capacity, obtaining the water injection capacity;

[0092] The theoretical water inflow rate is obtained according to the water injection capacity and the water injection duration.

[0093] In the embodiment of the present invention, even if no theoretical water inlet flow meter is provided, the theoretical water inlet flow rate can be obtained. After any water intake, the water supply provider usually refills the water storage tank. Since the theoretical water outlet flow rate is known, the theoretical water inlet flow rate can be calculated.

[0094] In the embodiment of the present invention, the theoretical water inflow rate is L2,

[0095]

[0096] Among them, L1 is the theoretical water flow rate, T4 is the fourth moment, T3 is the third moment, T6 is the sixth moment, and T5 is the fifth moment.

[0097] In an embodiment of the present invention, the method further includes:

[0098] Divide 24 hours into multiple time periods;

[0099] The theoretical outflow rate and the theoretical inflow rate of each time period are obtained.

[0100] In the method of the embodiment of the present invention, the theoretical water inlet flow rate L2 can be regarded as the maximum theoretical water inlet flow rate that the water inlet valve of the water supply equipment can provide. After knowing the theoretical water inlet flow rate L2, the actual water inlet flow rate can be controlled by controlling the power of the water inlet valve.

[0101] In an embodiment of the present invention, the actual water outlet flow rate of the water supply equipment is controllable by the water supply equipment. For example, to meet the temperature requirements of users when taking water, the water supply equipment can adjust the actual water outlet flow rate. The water inlet of the water supply equipment is usually tap water, and the theoretical water inlet flow rate supplied to the water supply equipment may be different due to different water pressures and water consumption. The theoretical water inlet flow rate is usually related to the time period. For example, from 1 to 5 in the morning, the water consumption is small, the water pressure is high, and the theoretical water inlet flow rate is large, while the theoretical water inlet flow rate from 17 to 23 will be smaller. The theoretical water inlet flow rates of different buildings are also different. Therefore, in the method of the embodiment of the present invention, the 24 hours of a day are divided into multiple time periods, which can be 1 hour as a time period, or 2 hours or 4 hours as a time period, and the theoretical water inlet flow rate and theoretical water outlet flow rate of each time period are obtained.

[0102] The method of the embodiment of the present invention utilizes the high water level probe and the low water level probe in the water supply equipment. Without the need for a theoretical inlet flow meter and a theoretical outlet flow meter, the inherent theoretical water outlet flow of the water supply equipment and the theoretical inlet flow provided by the outside world can be obtained, which can reduce the cost of the water supply equipment and is also beneficial to the water supply equipment in adjusting the actual inlet flow and the actual outlet flow.

[0103] Figure 3 FIG. 1 is a structural block diagram of a flow detection device for water supply equipment according to an embodiment of the present invention. Figure 3 As shown, the water supply equipment includes a water storage tank, in which a high water level probe and a low water level probe are provided, and the device includes:

[0104] A capacity acquisition unit 310 is used to acquire the total capacity of the water storage tank;

[0105] The timing unit 320 is used to obtain the emptying time of the full-capacity water in the water storage tank according to the high water level probe and the low water level probe;

[0106] The controller 330 is used to obtain a theoretical water outlet flow rate according to the total capacity and the emptying time.

[0107] In the embodiment of the present invention, the control unit is further used for:

[0108] determining whether the water storage tank is full of capacity according to the high water level probe;

[0109] If the water storage tank is full, at the first moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0110] The timing unit 320 is also used for:

[0111] Acquiring a second time when the water level reaches the first water level by the low water level probe;

[0112] The clearing duration is obtained according to the difference between the second moment and the first moment.

[0113] The controller 330 is also used for:

[0114] The theoretical water outflow rate is obtained by dividing the total capacity by the emptying time.

[0115] In the embodiment of the present invention, the timing unit 320 is also used to obtain the water extraction time of any water extraction;

[0116] The timing unit 320 is also used to obtain the water filling time of the water storage tank after any water extraction;

[0117] The controller 330 is further configured to obtain a theoretical water inflow rate according to the water intake duration, the water injection duration and the theoretical water outflow rate.

[0118] In the embodiment of the present invention, the control unit is further used for:

[0119] determining whether the water storage tank is full of capacity according to the high water level probe;

[0120] If the water storage tank is full, at the third moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet;

[0121] The timing unit 320 is also used for:

[0122] Obtaining a fourth moment when the water outlet valve is closed;

[0123] The water fetching duration is obtained according to the difference between the fourth moment and the third moment.

[0124] In the embodiment of the present invention, the timing unit 320 is further used to obtain the fifth moment of turning on the water inlet pump to inject water after any water extraction;

[0125] The controller 330 is also used to determine whether the water storage tank has reached full capacity based on the high water level probe;

[0126] The timing unit 320 is also used for:

[0127] If the water storage tank reaches full capacity, obtaining a sixth time when the water storage tank reaches full capacity;

[0128] The water injection duration is obtained according to the difference between the sixth moment and the fifth moment.

[0129] In the embodiment of the present invention, the controller 330 is further used for:

[0130] Obtaining water intake capacity according to the product of the theoretical water outflow rate and the water intake time;

[0131] According to the water intake capacity, obtaining the water injection capacity;

[0132] The theoretical water inflow rate is obtained according to the water injection capacity and the water injection duration.

[0133] In the embodiment of the present invention, the controller 330 is further used for:

[0134] Divide 24 hours into multiple time periods;

[0135] The theoretical outflow rate and the theoretical inflow rate of each time period are obtained.

[0136] The device of the embodiment of the present invention utilizes the high water level probe and the low water level probe in the water supply equipment, and can obtain the theoretical water outlet flow inherent in the water supply equipment and the theoretical water inlet flow provided by the outside world without the need for a theoretical water inlet flow meter and a theoretical water outlet flow meter, thereby reducing the cost of the water supply equipment.

[0137] The embodiment of the present invention further provides a water purifier, which uses the method described above.

[0138] An embodiment of the present invention further provides a water purifier, comprising the device as described above.

[0139] Figure 2 FIG. 1 is a flow chart of a method for detecting flow of a water supply device in one embodiment. It should be understood that although Figure 2 The steps in the flowchart are shown in sequence as indicated by the arrows, but the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of the steps, and the steps can be executed in other orders. Moreover, Figure 2 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0140] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0141] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for detecting flow rate of water supply equipment, characterized in that: The water supply equipment comprises a water storage tank, in which a high water level probe and a low water level probe are arranged, and the method comprises: Obtaining the total capacity of the water storage tank; According to the high water level probe and the low water level probe, obtaining the emptying time of the full-capacity water in the water storage tank; The theoretical water outflow rate is obtained according to the total capacity and the emptying time.

2. The method according to claim 1, characterized in that The step of obtaining the emptying time for emptying the full volume of water in the water storage tank according to the high water level probe and the low water level probe comprises: determining whether the water storage tank is full of capacity according to the high water level probe; If the water storage tank is full, at the first moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet; Acquiring a second time when the water level reaches the first water level by the low water level probe; The clearing duration is obtained according to the difference between the second moment and the first moment.

3. The method according to claim 2, characterized in that The obtaining of theoretical water flow rate according to the total capacity and the emptying time includes: The theoretical water outflow rate is obtained by dividing the total capacity by the emptying time.

4. The method according to claim 1, characterized in that: The method further comprises: Get the water withdrawal time of any water withdrawal; Obtaining the water filling time for filling the water storage tank after any water extraction; The theoretical water inflow rate is obtained according to the water intake time, the water injection time and the theoretical water outflow rate.

5. The method according to claim 4, characterized in that The acquisition of the water extraction time of any water extraction includes: determining whether the water storage tank is full of capacity according to the high water level probe; If the water storage tank is full, at the third moment, the water outlet valve is opened so that the water in the water storage tank flows out through the water outlet; Obtaining a fourth moment when the water outlet valve is closed; The water fetching duration is obtained according to the difference between the fourth moment and the third moment.

6. The method according to claim 5, characterized in that The obtaining of the water filling time for filling the water storage tank after any water extraction comprises: Obtaining a fifth time when the water inlet pump is turned on to inject water after any water intake; determining whether the water storage tank has reached full capacity according to the high water level probe; If the water storage tank reaches full capacity, obtaining a sixth time when the water storage tank reaches full capacity; The water injection duration is obtained according to the difference between the sixth moment and the fifth moment.

7. The method according to claim 6, characterized in that The obtaining of the theoretical water inflow flow rate according to the water intake time, the water injection time and the theoretical water outflow flow rate comprises: Obtaining water intake capacity according to the product of the theoretical water outflow rate and the water intake time; According to the water intake capacity, obtaining the water injection capacity; The theoretical water inflow rate is obtained according to the water injection capacity and the water injection duration.

8. The method according to claim 1, characterized in that The method further comprises: Divide 24 hours into multiple time periods; The theoretical outflow rate and the theoretical inflow rate of each time period are obtained.

9. A flow detection device for water supply equipment, characterized in that: The water supply equipment comprises a water storage tank, in which a high water level probe and a low water level probe are arranged, and the device comprises: A capacity acquisition unit, used to acquire the total capacity of the water storage tank; A timing unit, used for obtaining the emptying time of the full-capacity water in the water storage tank according to the high water level probe and the low water level probe; The controller is used to obtain a theoretical water outlet flow rate according to the total capacity and the emptying time.

10. A water purifier, characterized in that: The water purifier uses the method according to any one of claims 1 to 8.

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