Water outlet control method, hot water system and water purifying and drinking machine

Abstract

The invention belongs to the technical field of water supply electric appliances, and discloses a water outlet control method, a hot water system and a water purifying and drinking machine. The water outlet control method comprises the following steps: S1, starting a pure water inlet function of a water inlet end; s2, heating pure water; s3, the pure water inlet flow of the water inlet end and the boiled water outlet flow of the boiled water outlet end are detected, and the pure water heating power is controlled according to the pure water inlet flow and the boiled water outlet flow; s4, when the temperature of the pure water reaches the preset temperature, heating of the pure water is stopped; and S5, the boiled water outlet flow is detected, and when the boiled water outlet flow reaches the water supply first upper limit value A, pure water heating is conducted again. According to the water outlet control method, heat can be supplemented in time, the hot water supply efficiency is improved, and the user experience is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply electrical appliances, and in particular to a water outlet control method, a hot water system and a water purifier. Background Art

[0002] A water purifier is a water supply appliance that can provide users with boiled water or warm water. A water purifier installed in a public place needs to supply water to multiple users at the same time, and there is a demand for centralized water collection and large water collection volume.

[0003] A water purifier generally includes a filtration system and a heating system. The filtration system provides pure water to the heating system. The heating system uses a heat exchanger and a heating tube to raise the pure water to the target temperature, and then supplies water to the user from the water outlet. Existing water purifiers have the following problems: when the filtration system supplies a large amount of water and the water tap at the water outlet is fully opened, the water flow will take away the heat generated by the heating system in a short time. At the same time, the heating tube cannot replenish the lost heat in time, resulting in subsequent users needing to wait for the water purifier to reheat when they need to get hot water, resulting in a reduced user experience and low efficiency in hot water supply.

[0004] Therefore, there is an urgent need for a water output control method, a hot water system and a water purifier to solve the above problems. Summary of the invention

[0005] According to one aspect of the present invention, an object is to provide a water outlet control method, which can achieve timely heat replenishment, improve hot water supply efficiency, and effectively improve user experience.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A water outlet control method is used to control the heating of pure water by a hot water system, wherein the hot water system comprises a water inlet and a boiling water outlet;

[0008] The water outlet control method comprises:

[0009] S1, starting the pure water inlet function of the water inlet end;

[0010] S2, heating pure water;

[0011] S3, detecting the pure water inlet flow rate of the water inlet end and the boiled water outlet flow rate of the boiled water outlet end, and controlling the pure water heating power according to the pure water inlet flow rate and the boiled water outlet flow rate;

[0012] S4. When the pure water temperature reaches the preset temperature, the heating of the pure water is stopped;

[0013] S5. Detect the boiling water outflow rate. When the boiling water outflow rate reaches the first upper limit value A of the water supply, perform pure water heating again.

[0014] As a preferred embodiment of the water outlet control method provided by the present invention, in step S3, when the pure water inlet flow rate exceeds the upper limit B of the water inlet, and the boiled water outlet flow rate exceeds the second upper limit C of the water supply, the pure water heating power is increased;

[0015] When the pure water inlet flow rate does not reach the lower limit D of the water inlet, and the boiled water outlet flow rate does not reach the lower limit E of the water supply, the pure water heating power is decreased.

[0016] As a preferred embodiment of the water outlet control method provided by the present invention, the hot water system further includes a hot water tank, which is configured to hold pure water and heat the pure water, and the water inlet end and the boiled water outlet end are respectively communicated with the hot water tank;

[0017] The water outlet control method further includes:

[0018] In step S1, the pure water level in the hot water tank is detected. When the pure water level reaches the upper limit of the level, the pure water inlet function of the water inlet end is stopped; when the pure water level is lower than the lower limit of the level, the pure water inlet function of the water inlet end is started again.

[0019] According to another aspect of the present invention, an object is to provide a hot water system, which is controlled by the water outlet control method according to any one of the above-mentioned solutions. The hot water system includes a hot water tank, which is configured to hold pure water, and the water inlet end and the boiled water outlet end are respectively communicated with the hot water tank. A heating device is provided in the hot water tank and is configured to heat pure water.

[0020] As a preferred embodiment of the hot water system provided by the present invention, the hot water system further includes a heat exchanger and a warm water outlet end, and the heat exchanger is arranged between the water inlet end and the hot water tank;

[0021] The warm water outlet end is communicated with the heat exchanger, and the boiled water in the hot water tank is cooled by the heat exchanger and flows to the warm water outlet end;

[0022] Changing the pipe diameter parameter and the pipe length parameter of the boiled water flow cavity for the boiled water in the hot water tank to flow through in the heat exchanger to change the boiled water flow rate and resistance between the hot water tank and the warm water outlet end; and / or,

[0023] Changing the pipe diameter parameter and the pipe length parameter of the cold water flow cavity for the pure water to flow to the hot water tank in the heat exchanger to change the flow rate and resistance of the pure water flowing into the hot water tank.

[0024] As a preferred embodiment of the hot water system provided by the present invention, the hot water system further includes a filtering mechanism, which is arranged and connected upstream of the heat exchanger and configured to filter tap water, and the water inlet end is located between the filtering mechanism and the heat exchanger.

[0025] As a preferred embodiment of the hot water system provided by the present invention, the filtering mechanism is connected to the hot water tank through the heat exchanger, and the pure water flowing from the filtering mechanism to the hot water tank can exchange heat with the boiled water flowing from the hot water tank to the warm water outlet end.

[0026] As a preferred embodiment of the hot water system provided by the present invention, a first pipeline is arranged between the warm water outlet end and the heat exchanger, and a third pipeline is arranged between the warm water outlet end and the hot water tank; the water in the third pipeline can converge with the water in the first pipeline and flow together to the warm water outlet end.

[0027] As a preferred embodiment of the hot water system provided by the present invention, a regulating valve is arranged at the intersection of the third pipeline and the first pipeline, and the regulating valve can control the opening degrees of the third pipeline and the first pipeline.

[0028] As a preferred embodiment of the hot water system provided by the present invention, a second pipeline is arranged between the filtering mechanism and the heat exchanger, and a first throttle valve is arranged in the second pipeline, and the first throttle valve is configured to control the pure water inlet flow rate.

[0029] As a preferred embodiment of the hot water system provided by the present invention, a second throttle valve is arranged at the boiled water outlet end, and the second throttle valve is configured to control the boiled water outlet flow rate.

[0030] According to another aspect of the present invention, an object is to provide a water purifier, which includes the hot water system according to any one of the above embodiments.

[0031] Advantages of the present invention:

[0032] The water outlet control method provided by the present invention is used to control the heating of pure water by a hot water system. The hot water system includes a water inlet end and a boiled water outlet end. The water outlet control method controls the pure water heating power by detecting the pure water inlet flow rate at the water inlet end and the boiled water outlet flow rate at the boiled water outlet end. That is to say, the heating power can be flexibly adjusted according to the pure water inlet flow rate and the boiled water outlet flow rate, so that the energy is reasonably distributed. In the water outlet control method provided by the present invention, when the boiled water outlet flow rate reaches the first upper limit value A of water supply, the pure water heating is carried out again. That is to say, the timing of pure water heating can be controlled by detecting the boiled water outlet flow rate, that is, the pure water heating function can be started in advance according to the boiled water outlet flow rate, the heat can be supplemented in time, the subsequent duration required for boiled water supply can be shortened, the hot water supply efficiency can be improved, the user waiting time can be shortened, and thus the user experience can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a hot water system provided in Embodiment 1 of the present invention;

[0034] Figure 2 is a schematic control logic diagram of the water outlet control method provided in Embodiment 2 of the present invention.

[0035] In the figure:

[0036] 10. Hot water tank; 11. Heating device;

[0037] 30. Heat exchanger;

[0038] 40. Boiled water outlet end;

[0039] 50. Warm water outlet end;

[0040] 61. First pipeline; 62. Second pipeline; 63. Third pipeline;

[0041] 70. Filtration mechanism; 71. Primary filtration component; 711. Primary PP cotton; 712. Secondary PP cotton; 713. Scale inhibitor filter element; 72. Filter element; 73. Booster pump; 74. Reverse osmosis membrane;

[0042] 81. Regulating valve; 82. First throttle valve; 83. Second throttle valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0044] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0046] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] Embodiment 1

[0048] Figure 1 The structural schematic diagram of the hot water system provided by Embodiment 1 of the present invention is shown. Refer to Figure 1 , this embodiment provides a hot water system and a water purifier. The water purifier includes the hot water system provided by this embodiment. The hot water system includes a filtering mechanism 70 for filtering tap water and converting it into pure water, and a heating mechanism for heating the pure water to form boiling water or warm water. The heating mechanism includes a hot water tank 10 and a heat exchanger 30. The filtering mechanism 70 is arranged upstream of the heat exchanger 30, and the filtering mechanism 70 is connected to the hot water tank 10 and is configured to supply pure water to the hot water tank 10. The hot water tank 10 can hold pure water and heat and keep warm the pure water.

[0049] Specifically, the hot water system has a water inlet end, a boiling water outlet end 40, and a warm water outlet end 50. The water inlet end is located between the filtering mechanism 70 and the heating mechanism, specifically between the filtering mechanism 70 and the heat exchanger 30. A heating device 11 is provided in the hot water tank 10 and is configured to heat pure water. The warm water outlet end 50 is selectively communicated with the hot water tank 10 and / or the heat exchanger 30, and the boiling water outlet end 40 is selectively communicated with the hot water tank 10.

[0050] More specifically, the boiling water in the hot water tank 10 is cooled by the heat exchanger 30 and flows to the warm water outlet end 50. The pipe diameter parameter and the pipe length parameter of the boiling water flow chamber for the boiling water in the hot water tank 10 to flow through in the heat exchanger 30 are changed to change the boiling water flow rate and resistance between the hot water tank 10 and the warm water outlet end 50. And / or, the pipe diameter parameter and the pipe length parameter of the cold water flow chamber for the pure water to flow to the hot water tank 10 in the heat exchanger 30 are changed to change the flow rate and resistance of the pure water flowing into the hot water tank 10.

[0051] Even more specifically, the filtering mechanism 70 is communicated with the hot water tank 10 through the heat exchanger 30, and the pure water flowing from the filtering mechanism 70 to the hot water tank 10 can exchange heat with the boiling water flowing from the hot water tank 10 to the warm water outlet end 50.

[0052] Continue to refer to Figure 1 , a first pipeline 61 is arranged between the warm water outlet end 50 and the heat exchanger 30. A third pipeline 63 is arranged between the warm water outlet end 50 and the hot water tank 10. The water in the third pipeline 63 can converge with the water in the first pipeline 61 and flow to the warm water outlet end 50 together.

[0053] Specifically, a regulating valve 81 is provided at the intersection of the third pipeline 63 and the first pipeline 61, and the regulating valve 81 can control the opening degrees of the third pipeline 63 and the first pipeline 61. By controlling the opening degrees of the third pipeline 63 and the first pipeline 61, the water volume of the boiling water flowing to the warm water outlet end 50 and the cooled boiling water is further controlled, and thus the water temperature at the warm water outlet end 50 is controlled.

[0054] More specifically, a second pipeline 62 is arranged between the filtering mechanism 70 and the heat exchanger 30, and a first throttle valve 82 is provided in the second pipeline 62. The first throttle valve 82 is configured to control the pure water inlet flow rate, so as to prevent the relatively cold pure water filtered by the filtering mechanism 70 from flushing into the hot water tank 10 at too large a flow rate, resulting in heat loss in the hot water tank 10.

[0055] Even more specifically, the hot water system further includes a second throttle valve 83. The second throttle valve 83 is provided at the boiling water outlet end 40 and is configured to control the boiling water flow rate at the boiling water outlet end 40, so as to prevent the boiling water flow rate at the boiling water outlet end 40 from being too large, resulting in too fast heat loss in the hot water tank 10.

[0056] Preferably, there are multiple warm water outlets 50. The multiple warm water outlets 50 are arranged in parallel and can all provide warm water for users. Through the above arrangement, it is convenient for multiple users to take warm water simultaneously, improving the water intake efficiency and user experience.

[0057] Continue to refer to Figure 1 , the heat exchanger 30 includes a housing, a boiling water flow chamber, and a cold water flow chamber. The boiling water flow chamber and the cold water flow chamber are arranged in the housing, and heat exchange can occur between the boiling water flow chamber and the second pipeline within the housing. In this embodiment, by controlling the pipe diameter parameter and pipe length parameter of the boiling water flow chamber in the heat exchanger 30 for the boiling water from the hot water tank 10 to flow through, the boiling water flow rate and resistance between the hot water tank 10 and the warm water outlet 50 are controlled. And / or, by controlling the pipe diameter parameter and pipe length parameter of the cold water flow chamber in the heat exchanger 30 for pure water to flow to the hot water tank 10, the flow rate and resistance of the pure water flowing into the hot water tank 10 are controlled. Through the above methods, the heat exchange efficiency between the boiling water flow chamber and the cold water flow chamber is adjusted, and the flow velocity of the pure water in the boiling water flow chamber and the boiling water in the cold water flow chamber is controlled.

[0058] Continue to refer to Figure 1 , the filtering mechanism 70 provided in this embodiment includes a primary filtering component 71 and a filter element 72. The primary filtering component 71 is connected to the tap water inlet, and the filter element 72 is connected between the primary filtering component 71 and the water inlet end. In this embodiment, the filter element 72 is a post-carbon filter element, which cooperates with the primary filtering component 71 to further improve the filtering effect.

[0059] Specifically, the primary filtering component 71 includes a primary PP cotton 711, a secondary PP cotton 712, and a scale inhibitor filter element 713. Tap water passes through the primary PP cotton 711 and the secondary PP cotton 712 in sequence to obtain preliminary purification. The scale inhibitor filter element 713 is arranged between the primary PP cotton 711 and the secondary PP cotton 712 to remove scale from tap water.

[0060] More specifically, the filtering mechanism 70 further includes a booster pump 73, and the booster pump 73 is arranged between the primary filtering component 71 and the filter element 72. The booster pump 73 is used to ensure the smooth flow of tap water between the primary filtering component 71 and the filter element 72.

[0061] Even more specifically, the filtering mechanism 70 further includes a reverse osmosis membrane 74. The reverse osmosis membrane 74 is arranged downstream of the primary filtering component 71 to filter dissolved salts, colloids, microorganisms, and organic substances in the preliminarily purified tap water, etc.

[0062] Embodiment Two

[0063] Figure 2Schematic diagram of the control logic of the water outlet control method provided in the second embodiment of the present invention. Refer to Figure 2 , this embodiment provides a water outlet control method. The hot water system provided in the first embodiment needs to be controlled by this water outlet control method.

[0064] Specifically, the water outlet control method includes the following control processes:

[0065] Step S1: Activate the pure water inlet function at the inlet end.

[0066] Specifically, in step S1, detect the pure water level in the hot water tank 10. When the pure water level reaches the upper limit of the level, stop the pure water inlet function at the inlet end; when the pure water level is lower than the lower limit of the level, activate the pure water inlet function at the inlet end again.

[0067] Step S2: Activate the heating device 11 to heat the pure water.

[0068] Step S3: Detect the pure water inlet flow rate at the inlet end and the boiled water outlet flow rate at the boiled water outlet end 40, and control the pure water heating power according to the pure water inlet flow rate and the boiled water outlet flow rate. That is to say, the heating power of the heating device 11 can be flexibly adjusted according to the pure water inlet flow rate and the boiled water outlet flow rate, so that the energy can be reasonably distributed.

[0069] Specifically, in step S3, when the pure water inlet flow rate exceeds the upper limit of the inlet B, and the boiled water outlet flow rate exceeds the second upper limit of the water supply C, it means that the user's water intake demand is relatively high at this time. Control the heating device 11 to increase the heating power to meet the relatively high water intake demand. When the pure water inlet flow rate does not reach the lower limit of the inlet D, and the boiled water outlet flow rate does not reach the lower limit of the water supply E, it means that the user's water intake demand is relatively low at this time. Control the heating device 11 to reduce the heating power to meet the relatively low water intake demand and realize the reasonable distribution of energy. The specific values of the above upper limit of the inlet B, the second upper limit C, the lower limit of the inlet D, and the lower limit of the water supply E can be preset according to actual experience or preset according to looking up a table. This embodiment does not limit this here.

[0070] Step S4: When the temperature of the pure water reaches the preset temperature, stop heating the pure water.

[0071] Step S5: Detect the boiling water outflow rate. When the boiling water outflow rate reaches the first upper limit value A of water supply, start heating the pure water again. That is to say, when the boiling water outflow rate exceeds the first upper limit value A of water supply, it indicates that the user's demand for boiling water increases at this time. At this time, control the heating device 11 to start heating and work in advance to pre-heat the water in the hot water tank 10 to ensure the timeliness of boiling water supply and avoid the problem of user waiting due to insufficient boiling water when subsequent users fetch boiling water. The specific value of the above first upper limit value A can be preset according to actual experience or preset according to looking up a table, and this embodiment does not limit it here.

[0072] Through the above settings, the timing of pure water heating can be controlled, that is, the pure water heating function can be started in advance according to the boiling water outflow rate, heat can be supplemented in time, the subsequent duration required for boiling water supply can be shortened, the hot water supply efficiency can be improved, the user waiting time can be shortened, and thus the user experience can be effectively improved.

[0073] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A water discharge control method, characterized in that For controlling the heating of pure water by a hot water system, the hot water system includes a water inlet end and a boiling water outlet end (40); The outlet control method includes: S1. Start the pure water inlet function of the water inlet end; S2. Heat the pure water; S3. Detect the pure water inlet flow rate of the water inlet end and the boiling water outlet flow rate of the boiling water outlet end (40), and control the pure water heating power according to the pure water inlet flow rate and the boiling water outlet flow rate; S4. When the temperature of the pure water reaches the preset temperature, stop heating the pure water; S5. Detect the boiling water outlet flow rate, and when the boiling water outlet flow rate reaches the first water supply upper limit value A, heat the pure water again.

2. The water outlet control method according to claim 1, wherein In step S3, when the pure water inlet flow rate exceeds the upper water inlet limit value B and the boiling water outlet flow rate exceeds the second water supply upper limit value C, increase the pure water heating power; When the pure water inlet flow rate does not reach the water inlet lower limit value D and the boiling water outlet flow rate does not reach the water supply lower limit value E, reduce the pure water heating power.

3. The water outlet control method according to claim 1, wherein, The hot water system further includes a hot water tank (10), and the hot water tank (10) is configured to hold pure water and heat the pure water. The water inlet end and the boiling water outlet end (40) are respectively communicated with the hot water tank (10); The outlet control method further includes: In step S1, detect the pure water level in the hot water tank (10). When the pure water level reaches the upper level limit, stop the pure water inlet function of the water inlet end; when the pure water level is lower than the lower level limit, start the pure water inlet function of the water inlet end again.

4. Hot water system, characterized in that, The hot water system is controlled by the outlet control method according to any one of claims 1-3. The hot water system includes a hot water tank (10), and the hot water tank (10) is configured to hold pure water. The water inlet end and the boiling water outlet end (40) are respectively communicated with the hot water tank (10). A heating device (11) is provided in the hot water tank (10) and is configured to heat pure water.

5. The hot water system according to claim 4, characterized in that, The hot water system further includes a heat exchanger (30) and a warm water outlet end (50). The heat exchanger (30) is arranged between the water inlet end and the hot water tank (10); The warm water outlet end (50) is communicated with the heat exchanger (30). The boiling water in the hot water tank (10) is cooled by the heat exchanger (30) and flows to the warm water outlet end (50); Change the pipe diameter parameter and pipe length parameter of the boiling water flow cavity for the boiling water in the hot water tank (10) to flow through in the heat exchanger (30) to change the boiling water flow rate and resistance between the hot water tank (10) and the warm water outlet end (50); and / or, Change the pipe diameter parameter and pipe length parameter of the cold water flow cavity for the pure water to flow to the hot water tank (10) in the heat exchanger (30) to change the flow rate and resistance of the pure water flowing into the hot water tank (10).

6. The hot water system according to claim 5, wherein, The hot water system further includes a filtering mechanism (70). The filtering mechanism (70) is arranged and communicated upstream of the heat exchanger (30) and is configured to filter tap water. The water inlet end is located between the filtering mechanism (70) and the heat exchanger (30).

7. The hot water system according to claim 6, characterized in that, The filtering mechanism (70) is connected to the hot water tank (10) through the heat exchanger (30), and the pure water flowing from the filtering mechanism (70) to the hot water tank (10) can exchange heat with the boiled water flowing from the hot water tank (10) to the warm water outlet end (50).

8. The hot water system according to claim 6, characterized in that, A first pipeline (61) is arranged between the warm water outlet end (50) and the heat exchanger (30), and a third pipeline (63) is arranged between the warm water outlet end (50) and the hot water tank (10); the water in the third pipeline (63) can converge with the water in the first pipeline (61) and jointly flow to the warm water outlet end (50).

9. The hot water system according to claim 8, characterized in that, An adjusting valve (81) is arranged at the confluence of the third pipeline (63) and the first pipeline (61), and the adjusting valve (81) can control the opening degrees of the third pipeline (63) and the first pipeline (61).

10. The hot water system according to claim 6, characterized in that, A second pipeline (62) is arranged between the filtering mechanism (70) and the heat exchanger (30), and a first throttle valve (82) is arranged in the second pipeline (62), and the first throttle valve (82) is configured to control the pure water inlet flow rate.

11. The hot water system according to claim 4, wherein A second throttle valve (83) is arranged at the boiled water outlet end (40), and the second throttle valve (83) is configured to control the boiled water outlet flow rate.

12. Water dispenser, characterized in that, It includes the hot water system according to any one of claims 4-11.

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