Heating device, purifying and heating all-in-one machine and control method

Abstract

The invention discloses a heating device, a purifying and heating all-in-one machine and a control method. The heating device comprises a shell, the shell is internally provided with a heating cavity, and the heating cavity comprises a water inlet end and a water outlet end which are oppositely arranged; one end of the heating body is located in the heating cavity, and the other end of the heating body is inserted into the water outlet end; the stirring component is arranged in the heating cavity and located at the water inlet end, and the stirring component is pushed to rotate by flowing of liquid entering the heating cavity from the water inlet end. The stirring component is arranged at the water inlet end of the heating cavity, and the stirring component is pushed to rotate through flowing of liquid entering the heating cavity from the water inlet end, so that the liquid in the heating cavity is stirred, and the liquid is more uniformly heated by the heating body.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a heating device, a water purification and heating integrated machine, and a control method. Background Art

[0002] Currently, all-in-one water purifiers on the market, whether countertop or under-the-counter, that use stainless steel electric heating or thick-film heating, will experience uneven heating in the heating chamber. This means that when the heating element in the heating device starts working, the water surrounding the heating element itself is heated first, while the water away from the heating element has not yet been heated to the set temperature. This results in uneven heating of the liquid in the heating device by the heating element. Furthermore, because the water inlet is constantly pumping water into the heating device, this condition persists. The consequence of this phenomenon is the appearance of yin and yang water, where the water near the heating element is heated to boiling, while the water away from the heating element has not yet been heated to the boiling point. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the heating body in the heating device heats the liquid in the heating device unevenly, and to provide a heating device, a heat and water purification integrated machine and a control method.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A heating device, characterized in that it comprises:

[0006] A housing, wherein the heating chamber is provided in the housing, and the heating chamber includes a water inlet end and a water outlet end that are oppositely arranged;

[0007] a heating body, one end of which is located in the heating chamber and the other end of which is inserted into the water outlet;

[0008] A stirring component is provided in the heating chamber and is located at the water inlet end. The stirring component is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end.

[0009] In this technical solution, a stirring component is provided at the water inlet end of the heating chamber, and the stirring component is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end to stir the liquid in the heating chamber, so that the heating body heats the liquid more evenly.

[0010] Preferably, the stirring component includes a plurality of blades and a rotating shaft, and one ends of the plurality of blades are fixed to the rotating shaft at intervals along the circumference of the rotating shaft.

[0011] In the present technical solution, a specific arrangement of a stirring component is provided through the above arrangement.

[0012] Preferably, the shell is provided with a water inlet and a water outlet communicating with the heating chamber, the water inlet is provided at the water inlet end of the heating chamber, and the water outlet is provided at the water outlet end of the heating chamber;

[0013] The orthographic projection of the water inlet along the axial direction of the rotating shaft is located within the orthographic projections of the plurality of blades along the axial direction of the rotating shaft.

[0014] In this technical solution, through the above-mentioned arrangement, the flow of liquid entering the heating chamber from the water inlet can more effectively drive the blades to rotate, thereby stirring the liquid in the heating chamber more strongly and making the heating body heat the liquid more evenly.

[0015] Preferably, the water inlet is arranged at a middle position facing the blade.

[0016] In this technical solution, the water inlet is arranged at the middle position directly opposite the blade, that is, the water inlet is located at the optimal position for driving the blade to rotate, so that the flow of liquid entering the heating chamber through the water inlet can more effectively drive the blade to rotate, thereby stirring the liquid in the heating chamber more strongly and making the heating body heat the liquid more evenly.

[0017] Preferably, the heating chamber is cylindrical, and includes the water inlet end and the water outlet end that are oppositely arranged along the axial direction of the heating chamber; the heating body is arranged along the axial direction of the heating chamber, and the stirring component rotates around the axial direction of the heating chamber.

[0018] In this technical solution, the above-mentioned arrangement enables the various components to be arranged more compactly in the heating chamber.

[0019] Preferably, there are multiple heating bodies, and the multiple heating bodies are evenly distributed in the heating chamber.

[0020] Preferably, the heating body is a U-shaped tube, comprising two parallel straight tubes and a connecting tube connected between the two straight tubes; the connecting tube is located in the heating chamber and is arranged close to the stirring component, and the ends of the two straight tubes away from the connecting tube are passed through the water outlet;

[0021] The straight tubes of the heating body are arranged equidistant from the straight tubes of adjacent heating bodies.

[0022] In this technical solution, the straight tubes of the heating body are arranged equidistant from the straight tubes of adjacent heating bodies, so that the heating body can heat the liquid in the heating chamber more evenly.

[0023] Preferably, the inner wall of the heating chamber is provided with a fixed shaft, and the stirring member is pivotally connected to the fixed shaft;

[0024] The fixed shaft and the housing are integrally formed.

[0025] In this technical solution, the structure can be made more stable by integrally forming the fixed shaft for installing the stirring component with the shell.

[0026] Preferably, the heating device further comprises a limiting member, which is fixed on the fixed shaft and is used to limit the stirring member from leaving the fixed shaft.

[0027] A heat and air conditioning all-in-one machine is characterized in that it comprises the heating device as described above.

[0028] A control method for a heat and air purifier is characterized by being used to control the heat and air purifier as described above, wherein the heat and air purifier further includes a raw water tank and a clean water tank, raw water in the raw water tank is filtered to form clean water that enters the clean water tank for storage, and a drainage device is provided between the clean water tank and the raw water tank; the control method comprises the following steps:

[0029] Step S1, obtaining the standby time of the air conditioner and heat pump;

[0030] Step S2: Compare the standby time of the air conditioner and heat pump with the preset time to determine whether the standby time of the air conditioner and heat pump is greater than or equal to the preset time. If not, execute step S1 again; if so, execute step S3;

[0031] Step S3, detecting the current position of the purified water in the purified water tank;

[0032] Step S4: Compare the current level of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank to determine whether the current level of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S5; if so, the purifier and heat integrated machine enters the water production mode.

[0033] Step S5: Control the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

[0034] In this technical solution, when the standby time of the heat and water purifier is greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back into the original water tank to avoid the breeding of bacteria in the clean water tank due to excessive clean water that has not been used for a long time, thereby improving the quality of the clean water and ensuring the user experience.

[0035] Preferably, the integrated heat and air purifier further includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, and a pumping device is provided between the clean water tank and the liquid outlet. The standby time of the integrated heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device. Step S1 includes: respectively obtaining the first standby time and the second standby time;

[0036] The step S2 includes: comparing the first standby time and the second standby time with the preset time respectively, and determining whether the first standby time and the second standby time are both greater than or equal to the preset time; if not, executing step S1 again; if so, executing step S3.

[0037] In this technical solution, the first standby time of the booster pump represents the length of time the booster pump is inoperative, that is, the length of time the integrated heat and water purifier is not producing water, and the second standby time of the pumping device represents the length of time the pumping device is inoperative, that is, the length of time the integrated heat and water purifier is not producing liquid. Excess clean water in the clean water tank is pumped back into the raw water tank only when both the first standby time and the second standby time are greater than or equal to a preset time, that is, when both the length of time the integrated heat and water purifier is not producing water and the length of time when no liquid is produced are greater than or equal to a preset time. This ensures that the excess clean water in the clean water tank remains in the clean water tank for longer than the preset time and needs to be pumped back into the raw water tank.

[0038] Preferably, before step S1, the control method further includes:

[0039] Detect whether the raw water tank is installed on the heat and air purifier. If not, adjust the installation of the raw water tank. If so, execute step S1; and / or,

[0040] Obtain the current position of the raw water in the raw water tank, compare the current position of the raw water in the raw water tank with the preset high water level of the raw water in the raw water tank, and determine whether the current position of the raw water in the raw water tank is lower than the preset high water level of the raw water in the raw water tank. If not, drain the liquid in the raw water tank; if so, execute step S1.

[0041] In this technical solution, by checking whether the raw water tank is in place, that is, whether it is properly installed on the heat and air purifier, before step S1, this prevents the system from malfunctioning due to the raw water tank not being installed in the corresponding water path. By determining whether the current level of raw water in the raw water tank is below the preset high water level of the raw water tank before step S1, this prevents water from overflowing the raw water tank after the purified water is discharged into the raw water tank.

[0042] A control method for a heat and air purifier is characterized in that it is used to control the heat and air purifier as described above, wherein the heat and air purifier further includes a raw water tank and a clean water tank, raw water in the raw water tank is filtered to form clean water that enters the clean water tank for storage, a pumping device is provided between the clean water tank and the liquid outlet, and the heat and air purifier further includes a heating water outlet mode. In the heating water outlet mode, the control method includes:

[0043] Obtaining heating water demand signal;

[0044] Obtaining the current position of the purified water in the purified water tank;

[0045] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating device and then discharged to the liquid outlet; if so, the clean water purification and heating integrated machine enters the water production mode.

[0046] In this technical solution, through the above settings, a specific control method for the heat and air purifier in the heating and water outlet mode is given.

[0047] Preferably, after the clean water in the clean water tank is heated by the heating device and discharged into the liquid outlet, the control method further includes:

[0048] Get the target water outlet temperature;

[0049] obtaining a first temperature of the purified water before entering the heating device;

[0050] The heating body in the heating device is controlled to adjust the heating power of the heating body according to the target water outlet temperature and the first temperature.

[0051] In this technical solution, the target water outlet temperature is compared with the first temperature to adjust the heating power of the heating body to achieve the target water outlet temperature required by the user.

[0052] Preferably, the rotation speed of the stirring component of the heating device is positively correlated with the flow rate generated when the pumping device is in operation.

[0053] In this technical solution, the rotational speed of the stirring component of the heating device will change with the change of the flow rate of the pumping device, that is, the greater the flow rate of the pumping device, the higher the rotational speed of the stirring component, and vice versa, the smaller the flow rate of the pumping device, the lower the rotational speed of the stirring component, so that the liquid in the heating chamber of the heating device can be more fully mixed, so that the heating body heats the liquid more evenly.

[0054] The positive progress effect of the present invention is:

[0055] The present invention provides a stirring component at the water inlet end of the heating chamber, and the stirring component is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end to stir the liquid in the heating chamber, so that the heating body heats the liquid more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a schematic diagram of the three-dimensional structure of the heating device of Example 1 of the present invention.

[0057] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the heating device of Example 1 of the present invention.

[0058] Figure 3 This is a schematic three-dimensional cross-sectional structural diagram of the filtering device of Example 1 of the present invention from another angle.

[0059] Figure 4 This is a schematic diagram of the left side structure of the heating device of Example 1 of the present invention.

[0060] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the AA direction.

[0061] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the shell of the heating device of Example 1 of the present invention.

[0062] Figure 7 This is a schematic cross-sectional structural diagram of the heating body of the heating device of Example 1 of the present invention.

[0063] Figure 8 This is a flow chart of a control method for a heat and air conditioner according to a second embodiment of the present invention.

[0064] Figure 9 This is a schematic structural diagram of the heat and air purification integrated machine according to embodiment 2 of the present invention.

[0065] Description of Reference Numerals

[0066] Heat and clean machine 1

[0067] Raw water tank 2

[0068] Low water level detector 201

[0069] Clean water tank 3

[0070] Drainage device 4

[0071] Filter device 5

[0072] Booster pump 6

[0073] Liquid outlet 7

[0074] Pumping device 8

[0075] Heating device 9

[0076] Housing 91

[0077] Heating chamber 92

[0078] Water inlet end 921

[0079] Water outlet 922

[0080] Water Inlet 931

[0081] Water outlet 932

[0082] Heating element 94

[0083] Straight tube 941

[0084] Connecting pipe 943

[0085] Stirring component 95

[0086] Blade 951

[0087] Shaft 952

[0088] Fixed shaft 96

[0089] Mounting slot 961

[0090] Limiter 97

[0091] Wastewater solenoid valve 11

[0092] Connecting vessel 12

[0093] Low water level float 13

[0094] High water level float 14

[0095] First temperature sensor 15

[0096] Second temperature sensor 16

[0097] Raw water TDS probe 17

[0098] Water purification TDS probe 18

[0099] One-way valve 19

[0100] First presence detector 21

[0101] Second presence detector 22

[0102] Air chamber 23 DETAILED DESCRIPTION

[0103] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0104] Example 1

[0105] like Figures 1 to 7 As shown, this embodiment provides a heating device 9 , which includes: a shell 91 , a heating body 94 and a stirring component 95 .

[0106] A heating chamber 92 is provided in the housing 91 . The heating chamber 92 includes a water inlet 921 and a water outlet 922 that are oppositely disposed.

[0107] One end of the heating body 94 is located in the heating chamber 92 , and the other end is inserted into the water outlet 922 .

[0108] The stirring member 95 is disposed in the heating chamber 92 and is located at the water inlet end 921 . The stirring member 95 is driven to rotate by the flow of liquid entering the heating chamber 92 from the water inlet end 921 .

[0109] In this way, by setting a stirring component 95 at the water inlet end 921 of the heating chamber 92, and the stirring component 95 is driven to rotate by the flow of liquid entering the heating chamber 92 from the water inlet end 921, the liquid in the heating chamber 92 is stirred, so that the heating body 94 heats the liquid more evenly.

[0110] The stirring member 95 and the housing 91 are both made of stainless steel to ensure strength while improving corrosion resistance and extending the overall service life.

[0111] In this embodiment, the stirring member 95 is an impeller, but is not limited thereto and may be any other structure capable of stirring the liquid. Specifically, the stirring member 95 includes a plurality of blades 951 and a rotating shaft 952, wherein one end of the plurality of blades 951 is fixed to the rotating shaft 952 at intervals along the circumference of the rotating shaft 952.

[0112] The housing 91 is provided with a water inlet 931 and a water outlet 932, which communicate with the heating chamber 92. The water inlet 931 is located at the water inlet end 921 of the heating chamber 92, and the water outlet 932 is located at the water outlet end 922 of the heating chamber 92. The orthographic projection of the water inlet 931 along the axial direction of the rotating shaft 952 lies within the orthographic projection of the plurality of blades 951 along the axial direction of the rotating shaft 952. This arrangement enables the flow of liquid entering the heating chamber 92 through the water inlet 931 to more effectively drive the blades 951 to rotate, thereby more intensely agitating the liquid in the heating chamber 92 and ensuring more uniform heating of the liquid by the heating element 94.

[0113] The water inlet 931 is arranged directly opposite the middle position of the blade 951. In this way, by arranging the water inlet 931 directly opposite the middle position of the blade 951, that is, the water inlet 931 is located at the optimal position for driving the blade 951 to rotate, so that the flow of liquid entering the heating chamber 92 through the water inlet 931 can more effectively drive the blade 951 to rotate, thereby stirring the liquid in the heating chamber 92 more strongly and making the heating body 94 heat the liquid more evenly.

[0114] Preferably, the heating chamber 92 is cylindrical, and the heating chamber 92 includes a water inlet end 921 and a water outlet end 922 that are relatively arranged along the axial direction P of the heating chamber 92; the heating body 94 is arranged along the axial direction of the heating chamber 92, and the stirring component 95 rotates around the axial direction P of the heating chamber 92. In other words, the axial direction of the rotating shaft 952 of the stirring component 95 is in the same direction as the axial direction P of the heating chamber 92. In this way, the above-mentioned arrangement allows the various components to be arranged more compactly in the heating chamber 92. Furthermore, the spacing between the heating body 94 and the stirring component 95 along the axial direction of the heating chamber 92 is 5 mm to 10 mm. In this way, not only can the water inside the heating chamber 92 be effectively disturbed, but the heating body 94 can also be in more complete contact with the water, resulting in an optimal heating effect and less likely to generate heating noise and bubbles.

[0115] In this embodiment, there are multiple heating bodies 94, and the multiple heating bodies 94 are evenly distributed in the heating chamber 92. The specific number of heating bodies 94 can be adjusted according to design requirements.

[0116] Specifically, the heating element 94 is a U-shaped tube, comprising two parallel straight tubes 941 and a connecting tube 943 connected between the two straight tubes 941. The connecting tube 943 is located within the heating chamber 92 and is positioned near the agitating member 95. The ends of the two straight tubes 941, away from the connecting tubes 943, are positioned through the water outlet 922. The straight tubes 941 of the heating element 94 are equidistant from the straight tubes 941 of adjacent heating elements 94. This equidistant arrangement of the straight tubes 941 of the heating element 94 allows the heating element 94 to more evenly heat the liquid in the heating chamber 92.

[0117] Preferably, the distance between two adjacent straight tubes 941 of two different heating bodies 94 is 1 to 1.2 times the diameter of the straight tube 941 to further ensure uniform heating.

[0118] One end of the heating body 94 located outside the shell 91, that is, one of the ends of the two straight tubes 941 away from the connecting tube 943, is connected to the neutral wire of the power supply, and the other is the live wire. The ends of the straight tubes 941 connected to the neutral wire and the live wire are high and low, that is, the high end is connected to the neutral wire and the low end is connected to the live wire, which is safer. All heating bodies are connected in parallel. Preferably, the heating bodies 94 are arranged along the circumference of the heating chamber 92, and the straight tubes 941 connected to the neutral wire are located on the same side of the heating bodies 94 arranged in the same circle. Similarly, the straight tubes 941 connected to the live wire are located on the same side of the heating bodies 94 arranged in the same circle to facilitate installation.

[0119] The inner wall of the heating chamber 92 is provided with a fixed shaft 96, and the stirring member 95 is pivotally connected to the fixed shaft 96. The fixed shaft 96 is integrally formed with the housing 91. In this way, the fixed shaft 96 on which the stirring member 95 is mounted is integrally formed with the housing 91, which can make the structure more stable.

[0120] Preferably, the heating device 9 further comprises a limiter 97, which is fixed to the fixed shaft 96 and is used to limit the stirring member 95 from leaving the fixed shaft 96. Specifically, a mounting groove 961 is provided on the fixed shaft, and the limiter 97 is clamped in the mounting groove 961.

[0121] This embodiment also provides a heat and air conditioning all-in-one machine, which includes the heating device 9 as described above.

[0122] The heating device 9 of this embodiment is provided with a stirring member 95 at the water inlet end 921 of the heating chamber 92, and the stirring member 95 is driven to rotate by the flow of liquid entering the heating chamber 92 from the water inlet end 921, so as to stir the liquid in the heating chamber 92, so that the heating body 94 heats the liquid more evenly.

[0123] Example 2

[0124] This embodiment provides a control method for a heat and air conditioner, which is used to control the heat and air conditioner in Example 1.

[0125] The heat and water purifier also includes a raw water tank and a clean water tank. The raw water in the raw water tank is filtered to form clean water and enter the clean water tank for storage. A drainage device is provided between the clean water tank and the raw water tank. The flow chart of the control method of the heat and water purifier of this embodiment is as follows: Figure 8 As shown, the control method includes the following steps:

[0126] Step S100: Obtain the standby time of the air conditioner and heat pump;

[0127] Step S200: Compare the standby time of the air conditioner and heat pump with the preset time to determine whether the standby time of the air conditioner and heat pump is greater than or equal to the preset time. If not, execute step S100 again; if so, execute step S300;

[0128] Step S300: Detect the current position of the purified water in the purified water tank;

[0129] Step S400: Compare the current level of purified water in the water purification tank with the preset low water level of the purified water in the water purification tank to determine whether the current level of purified water in the water purification tank is lower than the preset low water level of the purified water in the water purification tank. If not, execute step S500; if so, the heat and water purification device enters the water production mode.

[0130] Step S500: Control the drainage device to start working, so that the clean water in the clean water tank flows back to the raw water tank.

[0131] In this way, when the standby time of the heat and purifier is longer than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the original water tank to prevent the excessive amount of clean water that has not been used for a long time from breeding bacteria in the clean water tank, thereby improving the quality of the clean water and ensuring the user experience. Through the above control method, it is possible to ensure that the clean water tank is always filled with fresh water. At the same time, this clean water is filtered by the filtration system and is of hygienic and safe water quality.

[0132] It should be noted that the water in the raw water tank at this time includes raw water that has not been filtered by the filter device and clean water that has been filtered by the filter device but flows back into the raw water tank. However, the two are in a mixed state and will later be filtered by the filter device before entering the clean water tank. Therefore, the liquid in a mixed state is also called raw water.

[0133] In addition, the heating device of the integrated heat and air purifier has the structure of Example 1, which is achieved by arranging a stirring component at the water inlet end of the heating chamber, and the stirring component is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end, so as to stir the liquid in the heating chamber and make the heating body heat the liquid more evenly.

[0134] After step S500, the control method further includes:

[0135] Step S600: Detecting the current position of the purified water in the purified water tank;

[0136] Step S700: Determine whether the current level of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S500; if so, the heat and water purifier enters the water making mode and controls the drainage device to stop working.

[0137] In this way, by stopping the drainage device when the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank, it is ensured that the drainage device only pumps the clean water in the clean water tank back into the raw water tank, and avoids pumping air back into the raw water tank.

[0138] Preferably, the heat and air purifier further includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, and a pumping device is provided between the clean water tank and the liquid outlet. The standby time of the heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device.

[0139] Step S100 includes: obtaining a first standby time and a second standby time respectively;

[0140] Step S200 includes: comparing the first standby time and the second standby time with the preset time respectively, and determining whether the first standby time and the second standby time are both greater than or equal to the preset time; if not, executing step S100 again; if so, executing step S300.

[0141] In this way, the first standby time of the booster pump indicates the length of time the booster pump is inoperative, i.e., the length of time the integrated heat and water purifier is not producing water, and the second standby time of the pumping device indicates the length of time the pumping device is inoperative, i.e., the length of time the integrated heat and water purifier is not producing liquid. Excess clean water in the clean water tank is pumped back into the raw water tank only when both the first standby time and the second standby time are greater than or equal to the preset time, i.e., when both the length of time the integrated heat and water purifier is not producing water and the length of time the integrated heat and water purifier is not producing liquid are greater than or equal to the preset time. This ensures that the excess clean water in the clean water tank is retained in the clean water tank for longer than the preset time and needs to be pumped back into the raw water tank.

[0142] Preferably, before step S100, the control method further includes:

[0143] Detect whether the raw water tank is installed on the heat and air purifier. If not, adjust the installation of the raw water tank. If so, execute step S100; and / or,

[0144] Obtain the current position of the raw water in the raw water tank, compare the current position of the raw water in the raw water tank with the preset high water level of the raw water in the raw water tank, and determine whether the current position of the raw water in the raw water tank is lower than the preset high water level of the raw water in the raw water tank. If not, drain the liquid in the raw water tank; if so, execute step S100.

[0145] Thus, by checking whether the raw water tank is in place, that is, whether it is properly installed on the heat and air purifier before step S100, the system can be prevented from not being installed in the corresponding water path, causing malfunction. By determining whether the current level of raw water in the raw water tank is below the preset high water level of raw water tank 2 before step S100, overflow of the raw water tank after pure water is discharged into the raw water tank can be avoided.

[0146] Preferably, in the water production mode in step S400, the control method includes:

[0147] Step S410: obtaining the current position of the raw water in the raw water tank;

[0148] Step S420: Compare the current level of raw water in the raw water tank with the preset low water level of the raw water in the raw water tank to determine whether the current level of raw water in the raw water tank is lower than the preset low water level of the raw water in the raw water tank. If not, execute step S430; if so, refill the raw water tank with liquid.

[0149] Step S430: Control the booster pump to start working, so that the raw water in the raw water tank is filtered by the filter device to form clean water and enter the clean water tank for storage;

[0150] Step S440: obtaining the current position of the purified water in the purified water tank;

[0151] Step S450: Compare the current position of the clean water in the clean water tank with the preset high water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset high water level of the clean water in the clean water tank. If so, execute step S430; if not, control the booster pump to stop working and the heat and water purification machine enters the standby state.

[0152] It should be noted that the control method in the water production mode can be in step 400, but is not limited to step 400, and can also be in other cases. As long as it is determined that the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, the heat and water purification machine enters the water production mode and executes the above steps.

[0153] Preferably, the air purifier and heat integrated machine also includes a normal temperature water outlet mode. In the normal temperature water outlet mode, the control method includes:

[0154] Obtain the normal temperature water outlet demand signal;

[0155] Get the current position of clean water in the clean water tank;

[0156] Compare the current position of the clean water in the clean water tank with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank. If not, control the pumping device to start working to make the clean water in the clean water tank discharge through the liquid outlet; if so, the water purification and heat integrated machine enters the water making mode.

[0157] Preferably, the control method further includes:

[0158] Get the TDS value of purified water;

[0159] The TDS value of purified water is displayed on the interactive interface.

[0160] In this way, through the above settings, it is convenient for users to obtain the TDS value of purified water on the interactive interface.

[0161] like Figure 9As shown, this embodiment further provides an all-in-one heat and air purifier 1, which adopts the control method described above. By adopting the control method described above, the all-in-one heat and air purifier 1 of this embodiment can pump excess purified water in the purified water tank 3 back into the raw water tank 2 when the standby time of the all-in-one heat and air purifier 1 is greater than or equal to a preset time, thereby preventing excessive purified water from breeding bacteria in the purified water tank 3 that has not been used for a long time, thereby improving the quality of purified water and ensuring the user experience.

[0162] As described above, the integrated heat and water purifier 1 further includes a raw water tank 2 and a clean water tank 3. The raw water in the raw water tank 2 is filtered to form clean water, which is then stored in the clean water tank 3. A drainage device 4 is provided between the clean water tank 3 and the raw water tank 2. Specifically, the drainage device 4 is a drainage pump, but is not limited thereto and may also be other devices with drainage functions.

[0163] The volume of the raw water tank 2 is greater than or equal to twice the volume of the clean water tank 3. In this way, by setting the volume of the raw water tank 2 to be greater than or equal to twice the volume of the clean water tank 3, sufficient space is ensured to accommodate the clean water pumped from the clean water tank 3 back into the raw water tank 2.

[0164] The raw water tank 2 is provided with a low water level detector 201, which detects whether the current level of raw water in the raw water tank 2 is below the preset low water level of the raw water in the raw water tank 2. A high water level detector is also provided in the raw water tank 2, which detects whether the current level of raw water in the raw water tank 2 has reached the preset high water level of the raw water in the raw water tank 2. The raw water tank 2 is also provided with a first in-position detector 21, which detects whether the raw water tank 2 is in place.

[0165] A manifold 12 is provided adjacent to the clean water tank 3 and communicates with the clean water tank 3. A low-water-level float 13 and a high-water-level float 14 are provided within the manifold 12. The low-water-level float 13 senses whether the clean water in the clean water tank 3 is at a preset low water level, while the high-water-level float 14 senses whether the clean water is at a preset high water level. The clean water tank 3 is also provided with a second presence detector 22.

[0166] The integrated heat and water purifier 1 also includes a filter device 5. A booster pump 6 is provided between the raw water tank 2 and the filter device 5. The booster pump 6 directs raw water from the raw water tank 2 to the filter device 5 for filtration. Specifically, the filter device 5 is a composite filter element. A wastewater solenoid valve 11 is also provided between the filter device 5 and the raw water tank 2 to return wastewater from the filter device 5 to the raw water tank 2.

[0167] A pumping device 8 is provided between the clean water tank 3 and the liquid outlet 7 to allow the clean water in the clean water tank 3 to flow toward the liquid outlet 7. Specifically, the pumping device 8 is a water pump, but is not limited thereto and may also be other devices with a water pumping function.

[0168] A heating device 9 is provided on the outlet flow path of the purified water in the purified water tank 3 to the liquid outlet 7 for heating the purified water in the outlet flow path. The structure of the heating device 9 is shown in the structure of the heating device 9 in the first embodiment.

[0169] A first temperature sensor 15 is also provided on the liquid outlet path between the heating device 9 and the clean water tank 3 to detect the first temperature of the clean water before it enters the heating device 9. A second temperature sensor 16 is also provided on the liquid outlet path between the heating device 9 and the liquid outlet 7 to detect the second temperature of the clean water after it passes through the heating device 9. Specifically, both the first temperature sensor 15 and the second temperature sensor 16 are NTC temperature sensors. The second temperature sensor 16 is also used to detect the dry-boiling temperature. If the heating element fails, that is, if the second temperature sensor 16 detects a temperature higher than the maximum preset temperature, the system will determine that it has failed.

[0170] A UV sterilizer is also provided between the clean water tank 3 and the heating device 9 to sterilize the clean water in the liquid outlet flow path.

[0171] A raw water TDS probe 17 is provided between the raw water tank 2 and the filter device 5 for detecting the TDS value of the raw water. A purified water TDS probe 18 is provided between the purified water tank 3 and the liquid outlet 7 for detecting the TDS value of the purified water.

[0172] A one-way valve 19 is provided between the filter device 5 and the clean water tank 3 to allow the filtered clean water to flow into the clean water tank 3 .

[0173] An air chamber 23 is provided between the heating device 9 and the liquid outlet 7 to separate the gas and liquid in the purified water in the liquid outlet flow path, thereby preventing the purified water flowing out of the liquid outlet 7 from being contaminated with gas and ensuring safety. The gas outlet of the manifold 12 is also connected to the air chamber 23, so that the gas in the manifold 12 can be discharged to the outside through the air chamber 23.

[0174] The heat and water purification machine 1 also includes a controller, and the drainage device 4, the communicating vessel 12, the first in-place detector 21, the low water level detector 201, the second in-place detector 22, the filtering device 5, the heating device 9, the first temperature sensor 15, the second temperature sensor 16, the raw water TDS probe 17 and the purified water TDS probe 18 are electrically connected to the controller respectively.

[0175] The air conditioner and heat all-in-one machine 1 further comprises a control panel electrically connected to the controller, and an interactive interface is provided on the control panel.

[0176] The integrated heat and water purification machine 1 of this embodiment adopts the above-mentioned control method. When the standby time of the integrated heat and water purification machine 1 is greater than or equal to the preset time, the excess clean water in the clean water tank 3 can be pumped back into the raw water tank 2. This prevents excessive clean water that has not been used for a long time from breeding bacteria in the clean water tank 3, thereby improving the quality of the clean water and ensuring the user experience. Among them, the heating device 9 of the integrated heat and water purification machine 1 has the structure of Example 1. It is provided with a stirring component at the water inlet end 921 of the heating chamber 92. The stirring component is driven to rotate by the flow of liquid entering the heating chamber 92 from the water inlet end 921, so as to stir the liquid in the heating chamber 92 and make the heating body 94 heat the liquid more evenly.

[0177] It should be noted that, in order to avoid the problem of a large number of bacteria breeding in the clean water tank 3 due to long-term non-use of the heat and purifier 1, those skilled in the art usually adopt means of strengthening sterilization, such as by increasing the heating treatment temperature, or enhancing the sterilization effect of the UV sterilizer. However, the purified water treated in this way will cause the problem of poor taste of the output water. The heat and purifier 1 and the control method of the heat and purifier 1 of this embodiment avoid the problem of poor taste of the output water.

[0178] Example 3

[0179] This embodiment provides a control method for a heat and air conditioner, which is used to control the heat and air conditioner in Embodiment 1 and / or Embodiment 2.

[0180] The heat and water purifier also includes a raw water tank and a clean water tank. The raw water in the raw water tank is filtered to form clean water and then enters the clean water tank for storage. A pumping device is provided between the clean water tank and the liquid outlet. The heat and water purifier of this embodiment also includes a heating water outlet mode. In the heating water outlet mode, the control method of this embodiment includes:

[0181] Step S100': obtaining a heating water output demand signal;

[0182] Step S200': obtaining the current position of the purified water in the purified water tank;

[0183] Step S300': Compare the current level of the purified water in the clean water tank with the preset low water level of the purified water in the clean water tank to determine whether the current level of the purified water in the clean water tank is lower than the preset low water level of the purified water in the clean water tank. If not, control the pumping device to start working so that the purified water in the clean water tank is heated by the heating device and then discharged to the liquid outlet; if so, the purification and heating integrated machine enters the water production mode.

[0184] Thus, through the above configuration, a specific control method for the integrated heat and air conditioner in the water heating mode is provided. The heating device of the integrated heat and air conditioner has the structure of Example 1, wherein a stirring member is provided at the water inlet end of the heating chamber, and the stirring member is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end, thereby stirring the liquid in the heating chamber, so that the heating element heats the liquid more evenly.

[0185] Preferably, when a heating water outlet demand signal is obtained, in order to better ensure that the bacteria in the outlet water quality does not exceed the standard, the UV sterilizer is turned on synchronously with the water pump of the pumping device.

[0186] Furthermore, in step S300', the clean water in the clean water tank is heated by the heating device and then discharged into the liquid outlet. The control method further includes:

[0187] Step S310': obtaining the target water outlet temperature;

[0188] Step S320': obtaining the first temperature of the purified water before it enters the heating device;

[0189] Step S330 ′: controlling the heating body in the heating device to adjust the heating power of the heating body according to the target water outlet temperature and the first temperature.

[0190] In this way, by comparing the target water outlet temperature and the first temperature to adjust the heating power of the heating body, the target water outlet temperature required by the user is achieved. For example: different water temperatures of 45°C, 55°C, 65°C, 85°C and 95°C are preset in the control system (controller) of the heat and water purification machine. When the first temperature sensor obtains the first temperature of the purified water before it enters the heating device as T1°C, and the control system (controller) of the heat and water purification machine receives that the target water outlet temperature is 55°C at this time, then the temperature at which the heating body needs to heat the water in the pure water tank is 55°C-T1°C=ΔT°C. Among them, the specific heat of water is C, that is, the heat absorbed by water is Q 吸 =CMΔT=W / t. In this formula, W is the power of the heater and M is the weight of water per unit time, which can be converted to M=ρν. Because the density of water is 1, M=Lt in this formula, where L is the water flow rate and t is the time per unit time. In other words, CLtΔT=W / t. Therefore, for a constant water flow rate, simply adjusting the power of the heater can achieve a stable target water temperature.

[0191] Furthermore, after the clean water in the clean water tank is heated by the heating device and discharged into the liquid outlet, the control method further includes:

[0192] Step S340': obtaining the first temperature of the purified water before it enters the heating device;

[0193] Step S350': obtaining the second temperature of the purified water after passing through the heating device;

[0194] Step S360 ′: controlling the heating device to adjust the heating power of the heating device according to the first temperature and the second temperature.

[0195] In this way, by comparing the first temperature and the second temperature to adjust the heating power of the heating device, it is possible to stably provide water outlet at the target outlet temperature required by the user.

[0196] Furthermore, the rotation speed of the stirring component of the heating device is positively correlated with the flow rate generated when the pumping device is in operation.

[0197] In this way, the rotation speed of the stirring component of the heating device will change with the change of the flow rate of the pumping device, that is, the greater the flow rate of the pumping device, the higher the rotation speed of the stirring component, and vice versa, the smaller the flow rate of the pumping device, the lower the rotation speed of the stirring component, so that the liquid in the heating chamber of the heating device can be more fully mixed, so that the heating body heats the liquid more evenly.

[0198] Before step 100', the control method further includes:

[0199] Step 10': Detect whether the user turns on the hot water function within the first preset time. If not, control the water pumping device to enter the low-speed mode. If so, execute step 40';

[0200] Step 20': After a second preset time interval, check again whether the user has turned on the hot water function. If not, execute step 30'; if so, execute step 40';

[0201] Step 30': controlling the pumping device to maintain a low-speed mode, and repeating step 20';

[0202] Step 40 ′: controlling the pumping device to gradually increase the rotation speed until a preset constant speed mode is reached.

[0203] In order to make the hot water output experience better, when it is detected that the user has not turned on the hot water function within the first preset time, the pumping device is controlled to enter the low-speed mode and maintain the low-speed mode. This can ensure that the hot water flow out of the heating device is initially small. The longer the water stays in the heating device, the higher the heated temperature will be. After checking that the user has turned on the hot water function, the pumping device is controlled to gradually increase the speed until it reaches the preset constant speed mode (rated speed). At this time, the flow rate of hot water output is basically constant. It should be noted that the speed of the low-speed mode of the pumping device is much smaller than the speed of the preset constant speed mode of the pumping device.

[0204] The control method of the heat and air conditioning machine of this embodiment and the control method of the heat and air conditioning machine in Example 2 can be applied simultaneously in the same heat and air conditioning machine, or can be applied separately in the same heat and air conditioning machine, or in different heat and air conditioning machines.

[0205] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A heating device, characterized in that: It includes: A housing, wherein a heating chamber is provided in the housing, and the heating chamber includes a water inlet end and a water outlet end that are oppositely arranged; a heating body, one end of which is located in the heating chamber and the other end of which is inserted into the water outlet; A stirring component is provided in the heating chamber and is located at the water inlet end. The stirring component is driven to rotate by the flow of liquid entering the heating chamber from the water inlet end.

2. The heating device according to claim 1, wherein The stirring component includes a plurality of blades and a rotating shaft. One ends of the plurality of blades are fixed to the rotating shaft at intervals along the circumferential direction of the rotating shaft.

3. The heating device according to claim 2, characterized in that The shell is provided with a water inlet and a water outlet which are in communication with the heating chamber, the water inlet is provided at the water inlet end of the heating chamber, and the water outlet is provided at the water outlet end of the heating chamber; The orthographic projection of the water inlet along the axial direction of the rotating shaft is located within the orthographic projections of the plurality of blades along the axial direction of the rotating shaft.

4. The heating device according to claim 3, characterized in that The water inlet is arranged at a middle position facing the blade.

5. The heating device according to claim 1, wherein The heating chamber is cylindrical and includes the water inlet end and the water outlet end which are arranged opposite to each other along the axial direction of the heating chamber; the heating body is arranged along the axial direction of the heating chamber, and the stirring component rotates around the axial direction of the heating chamber.

6. The heating device according to claim 5, characterized in that There are multiple heating bodies, and the multiple heating bodies are evenly distributed in the heating chamber.

7. The heating device according to claim 6, characterized in that The heating body is a U-shaped tube, comprising two parallel straight tubes and a connecting tube connected between the two straight tubes; the connecting tube is located in the heating chamber and is arranged close to the stirring component, and the ends of the two straight tubes away from the connecting tube are inserted into the water outlet; The straight tubes of the heating body are arranged equidistant from the straight tubes of adjacent heating bodies.

8. The heating device according to claim 1, wherein The inner wall of the heating chamber is provided with a fixed shaft, and the stirring component is pivotally connected to the fixed shaft; The fixed shaft and the housing are integrally formed.

9. The heating device according to claim 8, characterized in that The heating device further includes a limiting member, which is fixed on the fixed shaft and is used to limit the stirring member from leaving the fixed shaft.

10. A heat and air purifier, characterized in that: The integrated heat and air conditioning machine includes the heating device according to any one of claims 1 to 9.

11. A control method for a heat and air conditioning integrated machine, characterized in that: Used to control the integrated heat and water purifier according to claim 10, wherein the integrated heat and water purifier further comprises a raw water tank and a clean water tank, wherein the raw water in the raw water tank is filtered to form clean water which enters the clean water tank for storage, and a drainage device is provided between the clean water tank and the raw water tank; the control method comprises the following steps: Step S1, obtaining the standby time of the air conditioner and heat pump; Step S2: Compare the standby time of the air conditioner and heat pump with the preset time to determine whether the standby time of the air conditioner and heat pump is greater than or equal to the preset time. If not, execute step S1 again; if so, execute step S3; Step S3, detecting the current position of the purified water in the purified water tank; Step S4: Compare the current level of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank to determine whether the current level of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S5; if so, the purifier and heat integrated machine enters the water production mode. Step S5: Control the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

12. The control method of the heat and air conditioner according to claim 11, characterized in that: The heat and air purifier further includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, and a pumping device is provided between the clean water tank and the liquid outlet. The standby time of the heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device. Step S1 includes: respectively obtaining the first standby time and the second standby time; The step S2 includes: comparing the first standby time and the second standby time with the preset time respectively, and determining whether the first standby time and the second standby time are both greater than or equal to the preset time; if not, executing step S1 again; if so, executing step S3.

13. The control method of the heat and air conditioner according to claim 11, wherein: Before step S1, the control method further includes: Detect whether the raw water tank is installed on the heat and air purifier. If not, adjust the installation of the raw water tank. If so, execute step S1; and / or, Obtain the current position of the raw water in the raw water tank, compare the current position of the raw water in the raw water tank with the preset high water level of the raw water in the raw water tank, and determine whether the current position of the raw water in the raw water tank is lower than the preset high water level of the raw water in the raw water tank. If not, drain the liquid in the raw water tank; if so, execute step S1.

14. A control method for a heat and air conditioning unit, characterized in that: Used to control the integrated heat and water purifier according to claim 10, the integrated heat and water purifier further comprising a raw water tank and a clean water tank, the raw water in the raw water tank being filtered to form clean water which enters the clean water tank for storage, a pumping device being provided between the clean water tank and the liquid outlet, the integrated heat and water purifier further comprising a heating water outlet mode, in which the control method comprises: Obtaining heating water demand signal; Obtaining the current position of the purified water in the purified water tank; The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating device and then discharged to the liquid outlet; if so, the clean water purification and heating integrated machine enters the water production mode.

15. The control method of the heat and air conditioner according to claim 14, characterized in that: After the clean water in the clean water tank is heated by the heating device, it is discharged into the liquid outlet. The control method further includes: Get the target water outlet temperature; obtaining a first temperature of the purified water before entering the heating device; The heating body in the heating device is controlled to adjust the heating power of the heating body according to the target water outlet temperature and the first temperature.

16. The control method of the heat and air conditioner according to claim 14, characterized in that: The rotation speed of the stirring component of the heating device is positively correlated with the flow rate generated when the pumping device is in operation.

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