A water heater and a control method thereof

Abstract

The present invention proposes a water heater and a control method thereof, comprising a water heater body and an air dissolving tank arranged on the water heater body, the air dissolving tank having a water inlet and a water outlet, a water outlet structure being arranged at the water outlet, a water outlet hole being arranged on the water outlet structure, a cavity being formed in the water outlet structure, a flow reducing valve core being arranged in the cavity, a first water outlet through hole and a second water outlet through hole being arranged on the flow reducing valve core, the first water outlet through hole and the second water outlet through hole being connected to the water outlet hole respectively, and the water outlet area of ​​the first water outlet through hole is larger than the water outlet area of ​​the second water outlet through hole. Sufficient air is blended into the water, ensuring that the water and air are in full contact, ensuring the effect of micro-nano bubble water, and meeting the needs of users.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a water heater and a control method thereof. Background Art

[0002] Nano-micro bubble water has the functions of sterilization and deep cleaning, and does not produce harmful substances to the human body. It has become a new trend in the water supply equipment industry. At present, there are two main types of nano bubble water generating devices used in gas water heaters. One is to press air into the water body through bubbles, and use the characteristic that water cannot be compressed to form high pressure in the local part of the water body, so that a large amount of air is dissolved in the water to form nano-micro bubble water. It requires a high-power air pump to press air into the tap water. The air pump is large in size, and the operating power consumption and noise are also large, which is not suitable for gas water heaters; the second is to inhale air through the flow of tap water, and then use the micro bubble water outlet device to break up the larger air bubbles in the water and dissolve them into the water to form nano-micro bubble water. However, when the water pressure is insufficient, it is difficult to inhale enough air to form micro bubble water, and the use effect is not good. Summary of the invention

[0003] The present invention solves one of the problems existing in the existing related technologies to a certain extent. To this end, the purpose of the present invention is to provide a water heater to ensure the effect of micro-nano bubble water.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A water heater comprises a water heater body and an air dissolving tank arranged on the water heater body, the air dissolving tank having a water inlet and a water outlet, a water outlet structure being arranged at the water outlet, a water outlet hole being arranged on the water outlet structure, a cavity being formed in the water outlet structure, a flow reducing valve core and a switch structure being arranged in the cavity, a first water outlet through hole and a second water outlet through hole being arranged on the flow reducing valve core, the first water outlet through hole and the second water outlet through hole being connected to the water outlet hole respectively, and a water outlet area of ​​the first water outlet through hole is larger than a water outlet area of ​​the second water outlet through hole, and the switch structure is used to open or close the first water outlet through hole.

[0006] As a further improvement of the present invention, the switch structure includes a float, the density of the float is less than the density of water, and the float opens the first water outlet hole by floating up and closes the first water outlet hole by sinking.

[0007] As a further improvement of the present invention, the cavity includes a float floating space, a water outlet space and an installation space from top to bottom, the water outlet hole is arranged on the side wall of the water outlet space, the flow reducing valve core extends from the installation space to the water outlet space, and the float can float or sink in the float floating space and the water outlet space.

[0008] As a further improvement of the present invention, the flow reducing valve core includes a body, the first water outlet through hole is formed on the top of the body, and the second water outlet through hole is provided on the outer side wall of the body.

[0009] As a further improvement of the present invention, the aperture of the first water outlet through hole gradually increases from an end close to the body to an end far away from the body.

[0010] As a further improvement of the present invention, a guide plate is provided between the water inlet and the water outlet of the dissolved gas tank, and a water diversion hole is provided on the guide plate, and the water diversion hole is used to divert the flowing water entering the water inlet.

[0011] As a further improvement of the present invention, the gas dissolving tank includes an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, and the guide plate is arranged between the upper shell and the lower shell.

[0012] As a further improvement of the present invention, a water outlet pipe is provided in the water heater body, and the dissolved air tank is arranged on the water outlet pipe.

[0013] As a further improvement of the present invention, a shut-off valve is also provided on the water outlet pipe, the shut-off valve has a water valve inlet hole and a water valve outlet hole to form a hollow chamber with the shut-off valve, the shut-off valve also has a water valve air inlet hole, the air inlet hole is connected to the hollow chamber, and an air inlet check valve and a fixed air nozzle are provided at the air inlet hole.

[0014] As a further improvement of the present invention, it further comprises a water pump, wherein the water pump is arranged at the water outlet pipe, and the water outlet pump is connected to the water outlet structure of the water outlet.

[0015] The purpose of the present invention is to provide a control method for a water heater to ensure the effect of micro-nano bubble water.

[0016] The above purpose is achieved through the following technical solutions:

[0017] A water heater control method, applied to the water heater described above, comprises the following steps:

[0018] Step S101, entering micro-nano bubble water mode;

[0019] Step S102, draining the water in the air dissolving tank and injecting external air into the air dissolving tank;

[0020] Step S103, detecting whether the water pump speed increment is greater than a preset increment;

[0021] If yes, proceed to step S104; if no, return to step S102;

[0022] Step S104, injecting water into the air dissolving tank.

[0023] As a further improvement of the present invention, the steps of entering the micro-nano bubble water mode in step S101 are specifically as follows:

[0024] Step S1001, detecting whether the micro-nano bubble water standby mode is started;

[0025] If yes, go to step S1002; if no, go to step S1003;

[0026] Step S1002, detecting whether the real-time water flow rate is greater than the startup flow rate;

[0027] Step S1003, passing water into the air dissolving tank.

[0028] After step S1002, if yes, proceed to step S102; if no, return to step S1001.

[0029] Compared with the prior art, the present invention has at least the following beneficial effects:

[0030] 1. The present invention proposes a water heater that allows sufficient air to be incorporated into the water, ensuring full contact between water and air, ensuring the effect of micro-nano bubble water, and meeting user needs.

[0031] 2. The present invention proposes a control method for a water heater, which allows sufficient air to be incorporated into the water, ensures that the water and air are in full contact, ensures the effect of micro-nano bubble water, and meets user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the gas dissolving tank in the embodiment;

[0033] Figure 2 It is an exploded schematic diagram of the gas dissolving tank in the embodiment;

[0034] Figure 3 It is a structural schematic diagram of the shut-off valve in the embodiment;

[0035] Figure 4 is a schematic structural diagram of a water heater in the embodiment;

[0036] Figure 5 for Figure 4 Method diagram of the medium dissolved air tank and water pump;

[0037] Figure 6 is another structural schematic diagram of a water heater in the embodiment;

[0038] Figure 7 for Figure 6 Method diagram of the medium dissolved air tank and water pump;

[0039] Figure 8 Schematic diagram of a water heater control method in an embodiment. DETAILED DESCRIPTION

[0040] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0041] Embodiment 1:

[0042] See also Figure 1-7 A water heater is shown, comprising a water heater body 100 and an air dissolving tank 1 arranged on the water heater body 100, the air dissolving tank 1 having a water inlet 11 and a water outlet 12, a water outlet structure 2 is arranged at the water outlet 12, a water outlet hole 221 is arranged on the water outlet structure 2, a cavity 20 is formed in the water outlet structure 2, a flow reducing valve core 3 and a switch structure are arranged in the cavity 20, a first water outlet through hole 31 and a second water outlet through hole 32 are arranged on the flow reducing valve core 3, the first water outlet through hole 31 and the second water outlet through hole 32 are respectively connected to the water outlet hole 221, and a water outlet area of ​​the first water outlet through hole 31 is larger than a water outlet area of ​​the second water outlet through hole 32, and the switch structure is used to open or close the first water outlet through hole 31.

[0043] When the micro-nano bubble water is not needed, the switch structure opens the first water outlet through hole 31, and most of the water can flow out from the water outlet hole 221 through the first water outlet through hole 31, and a small part of the water can flow out from the water outlet hole 221 through the second water outlet through hole 32, thereby ensuring the water output;

[0044] When micro-nano bubble water is needed, air is inflated into the air dissolving tank 1, and the switch structure closes the first water outlet through hole 31 to prevent gas from being discharged from the first water outlet through hole 31. When the air dissolving tank 1 is full of air, water is injected into the air dissolving tank 1 to make the water flow and air fully contact to generate micro-nano bubble water. The generated micro-nano bubble water can flow out from the water outlet hole 221 through the second water outlet through hole 32 to ensure the water outlet effect.

[0045] The present invention provides a water heater, which allows sufficient air to be incorporated into water, ensures that water and air are fully in contact, ensures the effect of micro-nano bubble water, and meets user needs.

[0046] In this embodiment, the diameter difference between the first water outlet through hole 31 and the second water outlet through hole 32 is greater than 10 mm.

[0047] In this embodiment, the switch structure includes a float 4, the density of which is less than the density of water, and the float 4 floats up to open the first water outlet hole 31, and sinks down to close the first water outlet hole 31. When the micro-nano bubble water is not needed, the water flows into the gas dissolving tank 1 through the water inlet 11. Since the density of the float 4 is less than that of water, the float 4 floats up to open the first water outlet hole 31 after water injection, and the water can flow out from the first water outlet hole 31 or the second water outlet hole 32 through the water outlet hole 221; when the micro-nano bubble water is needed, air is introduced into the gas dissolving tank 1, and the air filling causes the float 4 to sink down and abut against the first water outlet hole 31 to close the first water outlet hole 31.

[0048] In this embodiment, a small gap is formed between the float 4 and the inner wall of the cavity 20, and the diameter of the float 4 is larger than the diameter of the first water outlet through hole 31 of the flow reducing valve core 3, and smaller than the diameter of the cross section of the cavity 20. While ensuring that the float 4 can block the first water outlet through hole 31, it also ensures that the float 4 can float up and sink in the cavity 20, avoiding the friction between the inner wall of the cavity 20 and the float 4, which causes the float 4 to not float up or sink smoothly, and the small gap also limits the direction of the float 4 moving up and down.

[0049] The cavity 20 includes a float space 21, a water outlet space 22 and an installation space 23 from top to bottom. The water outlet hole 221 is arranged on the side wall of the water outlet space 22. The flow reducing valve core 3 extends from the installation space 23 to the water outlet space 22. The float 4 can float or sink in the float space 21 and the water outlet space 22.

[0050] In this embodiment, the water outlet structure 2 is a hollow cylindrical structure with an upper opening and a lower opening. Abutment edges are formed at the top of the four walls of the installation space 23 extending toward the inside of the installation space 23. The flow reducing valve core 3 includes a base 311 and a water outlet portion 312 disposed on the base 311 and communicating with the base 311. The flow reducing valve core 3 is installed upwardly into the cavity 20 from the lower opening of the water outlet structure 2. When the base 311 abuts against the abutment edge of the installation space 23, the flow reducing valve core 3 is prevented from further upward movement. The abutment edge and the base 311 cooperate to limit the installation position of the flow reducing valve core 3 in the cavity 20. The base 311 is in the installation space 23, and the water outlet portion 312 extends into the water outlet space 22. A sealing ring is provided between the base 311 and the inner wall of the installation space 23.

[0051] The first water outlet through hole 31 is formed at the top of the flow reducing valve core 3, and the second water outlet through hole 32 is provided on the outer wall of the flow reducing valve core 3. In this embodiment, the first water outlet through hole 31 is provided at the top of the water outlet portion 312 of the flow reducing valve core 3, and the second water outlet through hole 32 is provided on the outer wall of the flow reducing valve core 3. The height of the water outlet portion 312 in the vertical direction is less than the height of the water outlet space 22 in the vertical direction. It is ensured that the water flow can enter the first water outlet through hole 31 at the top of the water outlet portion 312 from the water outlet hole 221 on the side wall of the water outlet space 22.

[0052] The aperture of the first water outlet through hole 31 gradually increases from one end close to the water outlet portion 312 to one end away from the water outlet portion 312. The edges around the first water outlet through hole 31 are inclined so that the cross section of the first water outlet through hole 31 is tapered. When the float 4 sinks to block the first water outlet through hole 31, the edges around the first water outlet through hole 31 receive the float 4, ensuring the blocking effect of the float 4 on the first water outlet through hole 31.

[0053] A guide plate 5 is provided between the water inlet 11 and the water outlet 12 of the gas dissolving tank 1 , and a guide hole 51 is provided on the guide plate 5 . The guide hole 51 is used to guide the flowing water entering from the water inlet 11 .

[0054] In this embodiment, the water inlet 11 is arranged at the top of the gas dissolving tank 1, and the water outlet 12 is arranged at the bottom of the gas dissolving tank 1, and the water inlet 11 and the water outlet 12 are arranged opposite to each other.

[0055] In this embodiment, the guide holes 51 are arranged near the edges of the guide plate 5. Water flows into the dissolved gas tank 1 from the water inlet 11. The guide plate 5 can prevent the water from impacting the water outlet structure 2 and causing splashes. When the water reaches the guide plate 5, the guide holes 51 on the guide plate 5 guide the water to the space between the water outlet 12 and the inner wall of the dissolved gas tank 1, so that the water can enter the water outlet hole 221 on the side wall of the water outlet structure 2 from the side.

[0056] The gas dissolving tank 1 includes an upper shell 111 and a lower shell 112 . The upper shell 111 and the lower shell 112 are detachably connected, and the guide plate 5 is arranged between the upper shell 111 and the lower shell 112 .

[0057] In this embodiment, the guide plate 5 is a circular plate, which is arranged at the joint between the upper shell 111 and the lower shell 112. It is convenient to remove the guide plate 5 from the gas dissolving tank 1.

[0058] A water outlet pipe 6 is provided in the water heater body 100, and the gas dissolving tank 1 is arranged on the water outlet pipe 6. Avoid the gas dissolving tank 1 being arranged on the water inlet pipe so that the generated microbubble water boils on the inner wall of the heat exchange tube of the water heater body 100 to produce abnormal sound.

[0059] A shutoff valve 7 is also provided on the water outlet pipe 6. The shutoff valve 7 has a water valve water inlet 71 and a water valve water outlet 72 to form a hollow chamber with the shutoff valve 7. The shutoff valve 7 also has a water valve air inlet 73. The water valve air inlet 73 is connected to the hollow chamber, and an air inlet check valve 731 is provided at the water valve air inlet 73. A fixed air nozzle is also provided at the air inlet hole. The provision of the air inlet check valve 731 ensures that gas can only enter the shutoff valve 7 from the outside, and prevents gas from flowing out of the shutoff valve 7. The water valve water outlet 72 is connected to the water inlet 11 of the gas dissolving tank 1.

[0060] A solenoid valve 74 is also provided at the shut-off valve 7 . The opening of the solenoid valve 74 can connect the water valve inlet 71 and the water valve outlet 72 . The closing of the solenoid valve 74 can cut off the water valve inlet 71 and the water valve outlet 72 .

[0061] It also includes a water pump 8 , which is arranged at the water outlet pipe 6 , and the water outlet pump 8 is connected to the water outlet structure 2 of the water outlet 12 .

[0062] When the micro-nano bubble water is not needed, the air inlet of the shutoff valve 7 is controlled to be closed, the water pump 8 is turned on, and the solenoid valve 74 is turned on. Water flows from the water valve water inlet 71 of the shutoff valve 7 through the water valve water outlet 72 and the water inlet 11 of the air dissolving tank 1 into the air dissolving tank 1. Under the buoyancy of the water, the float 4 floats upward to open the first water outlet through hole 31. Most of the water can flow out from the water outlet hole 221 through the first water outlet through hole 31, and a small part of the water can flow out from the water outlet hole 221 through the second water outlet through hole 32 to ensure the water output.

[0063] When micro-nano bubble water is needed, the air inlet of the shutoff valve 7 is controlled to be opened, the water pump 8 is turned on, and the electromagnetic valve 74 is closed. Closing the electromagnetic valve 74 can stop the water from entering the gas dissolving tank 1, and the water pump 8 is turned on to generate negative pressure, so that air flows into the gas dissolving tank 1 from the air inlet at the shutoff valve 7, and the gas dissolving tank 1 is inflated while the water is stopped, so that the remaining water in the gas dissolving tank 1 can be discharged and the gas dissolving tank 1 is filled with air. Under the pressure of the air in the gas dissolving tank 1, the float 4 sinks and closes the first water outlet through hole 31, so that the gas can be prevented from being discharged from the first water outlet through hole 31. At this time, the electromagnetic valve 74 is opened to inject water into the gas dissolving tank 1, and the water entering the gas dissolving tank 1 can fully contact with the air to form micro-nano bubble water. The generated micro-nano bubble water can flow out from the water outlet hole 221 through the second water outlet through hole 32, effectively ensuring the water outlet effect.

[0064] Embodiment 2:

[0065] like Figure 8 A method for controlling a water heater, applied to the water heater described in Example 1, comprises the following steps:

[0066] Step S101, entering micro-nano bubble water mode;

[0067] Step S102, draining the water in the air dissolving tank and injecting external air into the air dissolving tank;

[0068] Step S103, detecting whether the water pump speed increment is greater than a preset increment;

[0069] If yes, proceed to step S104; if no, return to step S102;

[0070] Step S104, injecting water into the air dissolving tank.

[0071] The present invention provides a control method for a water heater. In step S102, the air inlet of the shutoff valve is controlled to open, the water pump is turned on, and the solenoid valve is closed to discharge the water in the air dissolving tank and inject external air into the air dissolving tank.

[0072] In step S103, when the water pump speed increment is greater than the preset increment, it means that the remaining water in the air dissolving tank has been completely discharged and the air dissolving tank is full of air. In this embodiment, the preset speed is greater than 1000 rpm, generally between 1000 rpm and 2000 rpm.

[0073] In step S104, when the air dissolving tank is full of air, the water pump is turned off, and the solenoid valve is opened to inject water into the air dissolving tank to ensure that sufficient air is incorporated into the water, so that the formed micro-nano bubble water has good effect and meets user needs.

[0074] The specific steps of entering the micro-nano bubble water mode in step S101 are:

[0075] Step S1001, detecting whether the micro-nano bubble water standby mode is started;

[0076] If yes, go to step S1002; if no, go to step S1003;

[0077] Step S1002, detecting whether the real-time water flow rate is greater than the startup flow rate;

[0078] Step S1003, passing water into the air dissolving tank.

[0079] After step S1002, if yes, proceed to step S102; if no, return to step S1001.

[0080] In step S1003, that is, the micro-nano bubble water mode is not entered, the air inlet of the shut-off valve is controlled to be closed, the water pump is turned on, and the solenoid valve is turned on. Water flows from the water inlet hole of the water valve of the shut-off valve through the water outlet hole of the water valve and the water inlet of the dissolved air tank into the dissolved air tank. Under the buoyancy of the water, the float floats upward to open the first water outlet hole. Most of the water can flow out from the water outlet hole through the first water outlet hole, and a small part of the water can flow out from the water outlet hole through the second water outlet hole.

[0081] In step S1002, it is detected whether the real-time water flow rate is greater than the startup flow rate to ensure that the water heater is in the on state.

[0082] After step S104, the following steps are also included:

[0083] Step S105, detecting whether the water flow rate at that time is greater than the boiling water flow rate;

[0084] If yes, then return to step S1001; if no, then proceed to step S106;

[0085] Step S106, start the engine and ignite.

[0086] The above-mentioned preferred implementation modes should be regarded as illustrative examples of the implementation modes of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on this scheme should be regarded as within the scope of protection of this patent.

Claims

1. A water heater, characterized in that: The invention comprises a water heater body (100) and a gas dissolving tank (1), wherein a water outlet pipe (6) is arranged in the water heater body (100), the gas dissolving tank (1) is arranged on the water outlet pipe (6), the gas dissolving tank (1) has a water inlet (11) and a water outlet (12), a water outlet structure (2) is arranged at the water outlet (12), a water outlet hole (221) is arranged on the water outlet structure (2), a cavity (20) is formed in the water outlet structure (2), and a water outlet hole (221) is arranged on the water outlet structure (2). The cavity (20) is provided with a flow reduction valve core (3) and a switch structure, a first water outlet through hole (31) is formed on the top of the flow reduction valve core (3), and a second water outlet through hole (32) is provided on the outer wall of the flow reduction valve core (3), the first water outlet through hole (31) and the second water outlet through hole (32) are respectively connected to the water outlet hole (221), and the water outlet area of ​​the first water outlet through hole (31) is larger than the water outlet area of ​​the second water outlet through hole (32); The switch structure is used to open or close the first water outlet through hole (31), and the switch structure comprises a float (4). The density of the float (4) is less than the density of water. The float (4) opens the first water outlet through hole (31) by floating upward, and closes the first water outlet through hole (31) by sinking downward. A shutoff valve (7) is also provided on the water outlet pipe (6), the shutoff valve (7) having a water valve water inlet (71) and a water valve water outlet (72) so as to form a hollow chamber with the shutoff valve (7), and the shutoff valve (7) also has a water valve air inlet (73), the water valve air inlet being in communication with the hollow chamber; It also comprises a water pump (8), wherein the water pump (8) is arranged at the water outlet pipe (6), and the water outlet pump (8) is connected to the water outlet structure (2) of the water outlet (12).

2. A water heater according to claim 1, characterized in that: The cavity (20) comprises, from top to bottom, a floating ball space (21), a water outlet space (22) and an installation space (23); the water outlet hole (221) is arranged on the side wall of the water outlet space (22); the flow reducing valve core (3) extends from the installation space (23) into the water outlet space (22); and the floating ball (4) can float or sink in the floating ball space (21) and the water outlet space (22).

3. A water heater according to claim 1 or 2, characterized in that: The aperture of the first water outlet through hole (31) gradually increases from an end close to the water outlet portion to an end far from the water outlet portion.

4. A water heater according to claim 1 or 2, characterized in that: A guide plate (5) is provided between the water inlet (11) and the water outlet (12) of the gas dissolving tank (1), and a guide hole (51) is provided on the guide plate (5). The guide hole (51) is used to guide the flowing water entering the water inlet (11).

5. A water heater according to claim 4, characterized in that: The gas dissolving tank (1) comprises an upper shell (111) and a lower shell (112); the upper shell (111) and the lower shell (112) are detachably connected, and the guide plate (5) is arranged between the upper shell (111) and the lower shell (112).

6. A method for controlling a water heater, applied to the water heater according to any one of claims 1 to 5, characterized in that: The steps include: Step S101, entering micro-nano bubble water mode; Step S102, draining the water in the air dissolving tank and injecting external air into the air dissolving tank; Step S103, detecting whether the water pump speed increment is greater than a preset increment; If yes, proceed to step S104; if no, return to step S102; Step S104, injecting water into the air dissolving tank.

7. A water heater control method according to claim 6, characterized in that: The specific steps of entering the micro-nano bubble water mode in step S101 are: Step S1001, detecting whether the micro-nano bubble water standby mode is started; If yes, go to step S1002; if no, go to step S1003; Step S1002, detecting whether the real-time water flow rate is greater than the startup flow rate; Step S1003, passing water into the air dissolving tank; After step S1002, if yes, proceed to step S102; if no, return to step S1001.

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