Heating device and instant heating water dispenser

Abstract

The utility model discloses a heating device and an instant heating water dispenser. The heating device comprises a flow guide pipe, the heating pipe is arranged outside the flow guide pipe in a sleeving manner, and a channel is formed between the heating pipe and the flow guide pipe; the inner wall of the heating pipe forms a heating body; the flow guide ring is arranged between the flow guide pipe and the heating pipe as an independent component and is used for dividing the channel into a spiral heating channel; the water inlet unit is matched with the water inlet end of the heating channel, the water inlet unit comprises a water inlet cavity, a first flow divider is arranged at the water inlet end of the heating channel, a plurality of first blades are arranged on the first flow divider, a first flow dividing channel is formed between every two adjacent first blades, and the first flow dividing channels communicate with the water inlet cavity and the heating channel. The flow guide pipe and the flow guide ring are arranged in the heating pipe, the volume of the heating channel is reduced, so that thermal expansion and cold contraction of the heating device are small, when heating is stopped, the amount of hot overflow water is small, and the spiral heating channel enables water to spirally flow in the heating channel, accelerates heat conduction and prevents water from being gasified.

Description

Technical Field

[0001] The present disclosure relates to a heating device and an instant hot water dispenser. Background Art

[0002] Current instant hot water dispensers use a rapid heating element to quickly heat water. The rapid heating element converts electrical energy into heat energy, and the heat energy then transfers the heat to the water, quickly heating the water with powerful heat to obtain hot water rapidly. Due to the large power and high power density of the rapid heating element, the water rapidly heats up when it comes into contact with the heating structure inside the rapid heating element, generating a large amount of water vapor. Therefore, when discharging high-temperature water, it is prone to steam spraying, posing a safety hazard.

[0003] In response to the above problems, the current solutions adopted by the rapid heating element are to lower the maximum temperature setting of the rapid heating element or to increase the water vapor separation structure subsequently. The rapid heating elements adopting these two solutions lack usability and good performance. Summary of the Utility Model

[0004] To solve the problem of steam spraying generated by the rapid heating element when discharging high-temperature water as mentioned above, the present disclosure proposes a rapid heating element, comprising:

[0005] A housing, the housing includes a water inlet and a water outlet;

[0006] A heating element tube, the heating element tube is arranged inside the housing, and a sandwich layer for water flow to pass through is formed between the housing and the heating element tube;

[0007] A heat-conducting and fluid-conducting medium, the heat-conducting and fluid-conducting medium is arranged in the sandwich layer to reduce the volume of the sandwich layer. The heat-conducting and fluid-conducting medium is axially wound around the outside of the heating element tube, used to conduct the heat generated by the heating element tube to the water flow in the sandwich layer, and guide the water flow to rotate around the heating element tube and flow to the water outlet;

[0008] An eddy current spoiler is arranged at a first position of the heating element tube. The eddy current spoiler is used to disturb the water flow entering the sandwich layer, so that the water flow entering the sandwich layer is in a swirling state. The first position is close to one end where the water inlet of the housing is located.

[0009] In a further embodiment, the housing is in a cylindrical shape, and the water inlet and the water outlet are respectively arranged at both ends of the housing.

[0010] In a further embodiment, an eddy current spoiler is arranged at a second position of the heating element tube. The eddy current spoiler is used to disturb the water flow at the water outlet, so that the water flow temperature at the water outlet is uniform. The second position is close to one end where the water outlet of the housing is located.

[0011] In a further embodiment, sealing rings are provided on the water inlet and the water outlet, and a temperature sensor is further provided on the water outlet. The temperature sensor is used to detect the actual water outlet temperature.

[0012] In addition, the present disclosure also provides a water treatment device, which uses the above-mentioned rapid heating element to heat water.

[0013] In a further embodiment, the water treatment device includes a temperature setting control, and the maximum value of the temperature setting range of the temperature setting control is less than or equal to 100 °C.

[0014] In a further embodiment, the water treatment device further includes a target water outlet, which is used to directly discharge the water heated by the rapid heating element.

[0015] In addition, the present disclosure also provides a water treatment method, which is applied to the above-mentioned water treatment device and includes:

[0016] Heating the water in the water treatment device based on the rapid heating element in the water treatment device to obtain heated water;

[0017] When the target water outlet of the water treatment device is opened, directly discharging the heated water.

[0018] In a further embodiment, the step of heating the water in the water treatment device based on the rapid heating element in the water treatment device to obtain heated water includes:

[0019] Opening the water inlet of the rapid heating element, so that water flows into the interior of the rapid heating element from the water inlet of the rapid heating element, and after passing through the eddy current turbulator of the rapid heating element, flows in a rotating manner around the heating element tube of the rapid heating element along the heat conduction and fluid guiding body of the rapid heating element to the water outlet of the rapid heating element, thereby obtaining the heated water.

[0020] In a further embodiment, the water flow is disturbed to form a turbulent flow when passing through the eddy current turbulator of the rapid heating element, and enters the interior of the rapid heating element with the turbulent flow.

[0021] A heating device, comprising:

[0022] A diversion pipe;

[0023] A heating pipe, which is sleeved outside the diversion pipe and forms a channel between the heating pipe and the diversion pipe; the inner wall of the heating pipe constitutes a heating body;

[0024] The flow guide ring is provided as a separate component between the flow guide pipe and the heating pipe, and is used to divide the channel into a spiral heating channel;

[0025] The water inlet unit, the water inlet unit cooperates with the water inlet end of the heating channel. The water inlet unit includes a water inlet cavity. A first diverter is provided at the water inlet end of the heating channel. A plurality of first vanes are provided on the first diverter. First diversion channels are formed between adjacent first vanes. The first diversion channels are respectively communicated with the water inlet cavity and the heating channel.

[0026] In this solution, the heating device is provided with a spiral flow guide ring in the interlayer between the heating pipe and the flow guide pipe, which reduces the internal volume of the heating device. Therefore, the water flow entering the heating device is reduced, and the heating speed of the water is increased; moreover, the spiral heating channel makes the water flow spirally in the heating channel, forming a self-rotating water ring, increasing the contact opportunity between different parts of the water and the heating body, accelerating heat conduction, balancing the temperature of the heating body, avoiding local high-temperature heating points on the heating body, extending the service life of the heating body, and also preventing the water from being vaporized, so that steam will not be generated. At the same time, the self-rotating water ring also accelerates the heat exchange between the water, with a fast temperature rise and small water temperature fluctuations. The spiral heating channel extends the heating path, with a fast heating speed and uniform water temperature. Among them, for the convenience of processing and assembly, the flow guide ring is provided as a separate component between the flow guide pipe and the heating pipe. The flow guide pipe and the flow guide ring are arranged in the heating pipe, so that the volume of the heating channel in the interlayer is small. Therefore, the thermal expansion and contraction of the heating device are small, and when the heating stops, the amount of heat overflow water is small.

[0027] In addition, the water inlet unit has a water inlet, and the water inlet is used to connect tap water or purified water. The water flows into the heating pipe through the water inlet of the water inlet unit. While the first diverter diverts the water through the first vanes, it also turbulizes the water, forming a self-rotating water ring, disturbing the water before it enters the heating pipe, increasing the contact opportunity between different parts of the water and the heating body, accelerating heat conduction, balancing the temperature of the heating body, avoiding local high-temperature heating points on the heating body, preventing the water from being vaporized, extending the service life of the heating body, and at the same time also accelerating the heat exchange between the water, with small water temperature fluctuations.

[0028] Preferably, there are 6 groups of the first diversion channels.

[0029] In this solution, with the above structure, the water is turbulized in advance before entering the heating channel, improving the turbulization effect.

[0030] Preferably, the first vanes are inclined, and the inclination direction of the first vanes is the same as the rotation direction of the heating channel.

[0031] In this solution, with the above structure, spin water is formed, increasing the contact opportunities between different waters and the heating element, accelerating heat conduction, improving the turbulence effect of water. At the same time, the spin water also accelerates the heat exchange between waters, with fast and uniform temperature rise. Moreover, the spin water has fast heat conduction, balancing the temperature of the heating element and preventing the heating element from being burned out due to local high temperature.

[0032] Preferably, the first blade is inclined, and the inclination direction of the first blade is opposite to the rotation direction of the heating channel.

[0033] In this solution, with the above structure, the turbulence effect of water is improved.

[0034] Preferably, the heating device further includes a water outlet unit, which cooperates with the water outlet end of the heating channel. The water outlet unit includes an upper housing with a water outlet cavity. A second diverter is provided at the water outlet end of the heating channel, and a plurality of second blades are provided on the second diverter. Second diversion channels are formed between adjacent second blades, and the second diversion channels are respectively communicated with the water outlet cavity and the heating channel.

[0035] In this solution, the second diverter turbulizes the heated high-temperature water, enabling the water to be quickly mixed and balancing the water temperature at the water outlet.

[0036] Preferably, the second blade is inclined, and the inclination direction of the second blade is opposite to the rotation direction of the heating channel.

[0037] In this solution, with the above structure, the water can flow out smoothly, reducing the water resistance.

[0038] Preferably, the second blade is inclined, and the inclination direction of the second blade is the same as the rotation direction of the heating channel.

[0039] In this solution, with the above structure, the mixing effect of water is improved, and the water temperature at the water outlet is balanced.

[0040] Preferably, the heating device further includes a housing, and the heating pipe is arranged inside the housing.

[0041] In this solution, the housing is used for heat preservation to prevent the heat of the heating pipe from being lost, and the housing is also used to protect the heating pipe.

[0042] Preferably, the cross-section of the heating channel along the axial direction of the heating pipe has a first dimension segment and a second dimension segment. The first dimension segment is close to the heating pipe, and the second dimension segment is located in the middle of the cross-section. The length of the first dimension segment is greater than the length of the second dimension segment.

[0043] In this solution, with the above structure, the cross-section forms a narrow-mouth structure in the middle and an open-mouth structure at the ends. The open-mouth structure is arranged corresponding to the heating element, with a large water flow rate. A larger area of the heating element is used to heat the water, improving the heating efficiency. The narrow-mouth structure is far from the heating element, resulting in a small water flow rate to achieve balanced heating.

[0044] Preferably, the guide ring is made of a heat-conducting material. The cross-section of the heating channel along the axial direction of the heating tube is a regular figure, which includes a first straight segment, a first arc segment, a second straight segment, and a second arc segment connected end to end in sequence. The first straight segment and the second straight segment are arranged opposite to each other, the first arc segment and the second arc segment are arranged opposite to each other, and the first arc segment and the second arc segment bulge in the direction of approaching each other.

[0045] In this solution, since the guide ring is made of a heat-conducting material, the heat of the heating tube can be transferred to the water in the heating channel through the guide ring, enabling the first straight segment, the first arc segment, and the second arc segment to heat the water simultaneously, increasing the heating area, and improving the heating efficiency.

[0046] Preferably, the guide ring is made of a heat-conducting material.

[0047] Preferably, the number of the guide rings is multiple, and the multiple guide rings are evenly arranged along the circumferential direction of the guide tube.

[0048] In this solution, the guide ring is made of a heat-conducting material and is in contact with the heating element. The heating tube can conduct heat through the spiral guide ring, increasing the contact area between the heating element and the water, and making the water heat up quickly.

[0049] By arranging multiple guide rings on the circumferential side of the guide tube to form multiple spiral heating channels, the water flow rate through each heating channel becomes smaller, and at the same time, the contact area between the heating element, the guide ring, and the water becomes larger, improving the water heating speed.

[0050] Preferably, both ends of the guide ring in the axial direction of the heating tube are applied with force to maintain elastic potential energy.

[0051] In this solution, the guide ring can be compressed by the water inlet unit and the water outlet unit to maintain elastic potential energy. On the one hand, the guide ring is fixed, and on the other hand, the gap between adjacent spirals is kept fixed, preventing the shape of the heating channel from changing and affecting the heating effect.

[0052] An instant hot water dispenser, which includes the heating device as described above.

[0053] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure.

[0054] Implementing the present disclosure has the following beneficial effects:

[0055] By adding a heat-conducting and heat-convecting fluid inside the instant heating element, the volume inside the instant heating element becomes smaller while the heat-conducting area becomes larger. Therefore, the amount of water flowing into the instant heating element decreases, improving the water heating speed. The heat-conducting and heat-convecting fluid can also increase the contact amount between different water and the heating element tube. An eddy current spoiler is also provided at the water inlet of the instant heating element to make the water flowing into the instant heating element in a swirling state, making the heated water temperature uniform and preventing the formation of water vapor. The high-temperature water heated by the instant heating element can directly flow out without generating steam. Therefore, implementing the present disclosure solves the problem of steam generation when the instant heating element outputs high-temperature water, can improve the water heating speed and the maximum temperature setting of the instant heating element, and does not require subsequent addition of a water-vapor separation structure, and can directly discharge the heated high-temperature water, enhancing the usability and convenience of the instant heating element.

[0056] The heating device has a spiral guide ring arranged in the interlayer between the heating tube and the guide tube, reducing the internal volume of the heating device. Therefore, the amount of water flowing into the heating device decreases, improving the water heating speed. Moreover, the spiral heating channel makes the water flow spirally in the heating channel, forming a self-rotating water ring, increasing the contact opportunities between different parts of the water and the heating element, accelerating heat conduction, balancing the temperature of the heating element, avoiding local high-temperature heating points on the heating element, extending the life of the heating element, and preventing the water from being vaporized, thus not generating steam. At the same time, the self-rotating water ring also accelerates the heat exchange between the water, with a fast temperature rise and small water temperature fluctuations. The spiral heating channel extends the heating path, with a fast heating speed and uniform water temperature. Among them, for the convenience of processing and assembly, the guide ring is a separate component arranged between the guide tube and the heating tube. The guide tube and the guide ring are arranged inside the heating tube, making the heating channel volume in the interlayer small. Therefore, the thermal expansion and contraction of the heating device are small, and when the heating stops, the amount of heat overflow water is small.

[0057] In addition, the water inlet unit has a water inlet for connecting tap water or purified water, and water flows into the heating tube through the water inlet of the water inlet unit. While the first diverter diverts the water through the first blade, it also turbulates the water to form a self-rotating water ring, disturbing the water before it enters the heating tube, increasing the contact opportunities between different parts of the water and the heating element, accelerating heat conduction, balancing the temperature of the heating element, avoiding local high-temperature heating points on the heating element, preventing the water from being vaporized, extending the life of the heating element, and at the same time accelerating the heat exchange between the water, with small water temperature fluctuations. According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] To more clearly illustrate the technical solutions and advantages in the embodiments of this specification or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0059] Figure 1 Shows a longitudinal sectional schematic view of a rapid heating element according to Embodiment 1 of the present disclosure;

[0060] Figure 2 Shows an eddy current spoiler according to Embodiment 1 of the present disclosure;

[0061] Figure 3 Shows a structural block diagram of a water treatment device provided according to Embodiment 1 of the present disclosure;

[0062] Figure 4 Shows a flowchart of a water treatment method provided according to Embodiment 1 of the present disclosure;

[0063] Figure 5 Shows a cross-sectional structural schematic view of a heating device provided according to Embodiment 2 of the present disclosure;

[0064] Figure 6 Shows an exploded view of a heating device provided according to Embodiment 2 of the present disclosure;

[0065] Figure 7 Shows a structural schematic view of a diversion pipe and a diversion ring provided according to Embodiment 2 of the present disclosure;

[0066] Figure 8 Shows a cross-sectional view of a heating channel provided according to Embodiment 2 of the present disclosure.

[0067] In the figure: 1, outer shell; 11, water inlet; 12, water outlet; 2, heating element tube; 3, heat conduction and heat transfer fluid; 4, eddy current spoiler.

[0068] Heating channel 100, diversion pipe 201, heating pipe 202, diversion ring 203 (heat conduction and heat transfer fluid), water inlet unit 205, first diverter 2051 (eddy current spoiler), first blade 20511, first diversion channel 20512, lower housing 2052, water outlet unit 206, second diverter 2061 (eddy current spoiler), second blade 20611, second diversion channel 20612, upper housing 2062, first dimension segment 200, second dimension segment 300, first straight segment 400, first arc segment 500, second straight segment 600, second arc segment 700. Detailed implementation manners

[0069] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this utility model.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of this utility model and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0071] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0072] The special term "exemplary" here means "serving as an example, embodiment, or illustration". Any embodiment described here as "exemplary" does not have to be construed as being superior to or better than other embodiments.

[0073] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" in this article means any one of multiple or any combination of at least two of multiple. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set composed of A, B, and C.

[0074] In addition, to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present disclosure can also be implemented without certain specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail to highlight the gist of the present disclosure.

[0075] Embodiment 1

[0076] Please refer to the attached instruction manual Figure 1 , which shows a longitudinal sectional schematic view of the instant heating element provided by the embodiments of the present disclosure. As Figure 1 shown, the instant heating element includes:

[0077] A housing 1, the housing 1 includes a water inlet 11 and a water outlet 12;

[0078] A heating element tube 2, the heating element tube 2 is arranged inside the housing 1, and a sandwich for water flow to pass through is formed between the housing 1 and the heating element tube 2;

[0079] A heat-conducting and fluid-conducting medium 3, the heat-conducting and fluid-conducting medium 3 is arranged in the sandwich to reduce the volume of the sandwich, so that less water enters the sandwich. Therefore, the speed of heating water can be increased. The heat-conducting and fluid-conducting medium 3 is axially attached and wound around the outside of the heating element tube 2. Therefore, the heat-conducting and fluid-conducting medium 3 conducts the heat generated by the heating element tube 2 to the water flow in the sandwich, and guides the water flow to rotate around the heating element tube 2 and flow to the water outlet 12. The rotation of the water flow helps to increase the contact amount between different water and the heating element tube 2, and avoids the same part of water continuously contacting the heating element tube 2 and being continuously heated, thereby forming a positive feedback of water vapor and causing the steam spraying problem when discharging high-temperature water;

[0080] As Figure 2 shown, an eddy current spoiler 4 is arranged at a first position of the heating element tube 2. The eddy current spoiler 4 is used to disturb the water flow entering the sandwich, so that the water flow entering the sandwich is in a swirling state. The first position is close to one end where the water inlet 11 of the housing 1 is located. In the embodiments of the present disclosure, a turbine is selected as the eddy current spoiler 4. The turbine is fixed at the first position on the heating element tube 2. When the water flow passes through the turbine, it is disturbed and forms a swirl, so that the temperature of the heated water is more uniform and it is not easy to generate water vapor.

[0081] In the embodiment of the present disclosure, a stainless-steel spring is selected as the heat-conducting and water-conducting body 3. Since the water that does not come into contact with the heating body tube 2 needs heat conduction between water flows, the heating speed is slow and the heated water temperature is uneven. By making the stainless-steel spring in close contact with the heating body tube 2, the heat generated by the heating body tube 2 can be conducted to the water flow faster, so that the water heating speed is faster. The heat-conducting and water-conducting body 3 can also be other heat-conducting materials such as copper, aluminum, and zinc. After the water flow enters the instant heating body, it flows around the heating body tube 2 along the stainless-steel spring in a rotating state to the water outlet of the instant heating body. The rotation of the water flow around the heating body tube 2 increases the contact amount of different water with the heating body tube and the stainless-steel spring, so that more water in the water flow can be heated and the water temperature is more uniform, avoiding the problem of steam spraying caused by continuous heating of the water in direct contact with the heating body tube 2. It should be noted that except for the spring, the heat-conducting and water-conducting body can be any other shape that can guide the water flow to rotate around the heating body tube. Therefore, the present disclosure embodiment does not limit the material and shape of the heat-conducting and water-conducting body 3.

[0082] In a preferred disclosed embodiment, the housing 1 can be formed by die-casting with high-quality metal aluminum material into a cylindrical shape, and the housing 1 can ensure uniform heat distribution. The bottom of the housing 1 is provided with a water inlet 11, and the top is provided with a water outlet 12. The water flow enters the inside of the instant heating body from the water inlet 11 at the bottom, and directly exits from the water outlet 12 at the top after heating is completed.

[0083] In the embodiment of the present disclosure, a turbine is also provided at the second position of the heating body tube 2. When the water flow passes through the turbine, it is disturbed, so that the water flow temperature at the water outlet 12 is uniform. At this time, the water temperature at the water outlet is closest to the actual water temperature obtained after the instant heating body is heated. The second position is close to one end where the water outlet 12 of the housing 1 is located.

[0084] In the embodiment of the present disclosure, sealing rings are provided on the water inlet 11 and the water outlet 12, and a temperature sensor is further provided on the water outlet 12. To reduce costs, the temperature sensor can be an NTC temperature sensor. The temperature sensor is connected to an external temperature control device to monitor the water temperature at the water outlet 12 during the operation of the instant heating body. When the water temperature reaches the preset required temperature, the external temperature control device controls the instant heating body to stop heating. Since a turbine is provided at the water outlet 12, the detected water temperature is closer to the actual obtained water temperature, making the detection of the water outlet temperature by the temperature sensor more accurate. Therefore, the accuracy of temperature control of the instant heating body in the embodiment of the present disclosure is also improved.

[0085] Figure 3 The structural schematic diagram of the water treatment device provided according to the embodiment of the present disclosure is shown. Please refer to Figure 3, the water treatment device specifically includes a rapid heating element 101, a temperature setting control 102, and a target water outlet 103, where:

[0086] The rapid heating element 101 is used to heat water.

[0087] The temperature setting control 102 is used to set the temperature of the hot water to be obtained.

[0088] The target water outlet 103 is used to directly discharge the water heated by the rapid heating element.

[0089] Among them, the rapid heating element 101 is the rapid heating element provided by the embodiments of the present disclosure, and this rapid heating element will not cause steam spraying problems when discharging high-temperature water.

[0090] In the embodiments of the present disclosure, the temperature setting control 102 receives the outlet water temperature detected by the temperature sensor of the rapid heating element 101, and controls the rapid heating element to stop heating when the outlet water temperature reaches the preset required temperature. Specifically, since the rapid heating element provided by the embodiments of the present disclosure is used for heating, the water temperature during heating is uniform and no water vapor is generated, and there is no risk of steam spraying when discharging high-temperature water. Therefore, the rapid heating element 101 can heat water to 100 °C, and the maximum temperature at which the temperature setting control controls the rapid heating element 101 to heat can be set to 100 °C. That is to say, the rapid heating element provided by the embodiments of the present disclosure improves the maximum temperature setting of the rapid heating element.

[0091] Furthermore, since the water temperature during heating is uniform and no water vapor is generated, there is no need to set up a water vapor separation structure to separate the water vapor before discharging the water, and the target water outlet can directly discharge the water heated by the rapid heating element.

[0092] Figure 4 The flowchart of the water treatment method provided by the embodiments of the present disclosure is shown. The water treatment method is applied to the water treatment device provided by the embodiments of the present disclosure according to the above, and specifically includes steps S21-S24, as follows:

[0093] S21 Open the water inlet of the rapid heating element so that water flows into the interior of the rapid heating element from the water inlet of the rapid heating element.

[0094] S22 Disturb the water flow to form a turbulent flow and enter the interior of the rapid heating element with the turbulent flow.

[0095] In an embodiment of the present disclosure, a turbine is provided at the water inlet of the rapid heating element in the water treatment device. When the water flow passes through the turbine, it is disturbed to form a turbulent flow and enters the interior of the rapid heating element in a turbulent state. The turbulent state can increase the contact amount between different water and the heating element tube 2 and the heat conduction and heat transfer fluid 3, so that a large amount of water can be heated. Therefore, the temperature rises relatively evenly during the heating process and it is not easy to generate water vapor.

[0096] S23 causes the water flow to flow around the heating element tube in a rotating manner to the water outlet;

[0097] In an embodiment of the present disclosure, a stainless steel spring is provided inside the rapid heating element in the water treatment device. After the water flow enters the interior of the rapid heating element, it flows around the heating element tube of the rapid heating element along the stainless steel spring in a rotating manner to the water outlet of the rapid heating element, and the heated water is obtained. Since the water flow rotates around the heating element tube of the rapid heating element, it avoids the problem that part of the water flow has been in contact with the heating element tube of the rapid heating element and is continuously heated to generate water vapor. By rotating, the contact amount between the water flow and the heating element tube of the rapid heating element is increased, so that the water flow is evenly heated, and the formation of positive feedback of water vapor to cause steam ejection is avoided. Therefore, the heated water can reach a very high temperature without reducing the maximum temperature of the rapid heating element. At present, when the outlet water temperature of the rapid heating element is too high, water vapor will be generated to cause steam ejection. Therefore, the maximum temperature of the current rapid heating element cannot be too high, usually only reaching 85°C.

[0098] S24 discharges the treated water;

[0099] When the target water outlet of the water treatment device is opened, the heated water is directly discharged. Since the rapid heating element of the water treatment device is provided with a heat conduction and heat transfer fluid and a turbine, a large amount of water can be evenly heated during the heating process, and there is no huge temperature difference. Therefore, no water vapor will be generated. Even when the water temperature reaches the maximum temperature of the rapid heating element, no water vapor will be ejected from the target water outlet along with the high-temperature water to cause a safety hazard, and direct discharge can be carried out. Therefore, the rapid heating element does not need to add a subsequent water vapor separation structure, which is significantly different from the current rapid heating element that adds a subsequent water vapor separation structure to avoid steam ejection when discharging high-temperature water.

[0100] Embodiment 2

[0101] This embodiment is basically the same as Embodiment 1, and the difference lies in:

[0102] Such as Figures 5 - 8As shown in the figure, this embodiment discloses a heating device, which includes a diversion pipe 201, a heating pipe 202, a diversion ring 203 and a water inlet unit 205. The heating pipe 202 is sleeved outside the diversion pipe 201, and a channel is formed between the heating pipe 202 and the diversion pipe 201. The inner wall of the heating pipe 202 constitutes a heating body. The diversion ring 203 is provided as a separate component between the diversion pipe 201 and the heating pipe 202 for dividing the channel into a spiral heating channel 100. The water inlet unit 205 cooperates with the water inlet end of the heating channel 100. The water inlet unit 205 includes a water inlet cavity. A first diverter 2051 is provided at the water inlet end of the heating channel 100. A plurality of first blades 20511 are provided on the first diverter 2051. A first diversion channel 20512 is formed between adjacent first blades 20511. The first diversion channels 20512 are respectively communicated with the water inlet cavity and the heating channel 100. The water inlet unit 205 includes a lower housing 2052. The water inlet cavity is arranged inside the lower housing 2052. The water inlet unit 205 also has a water inlet 11, and the water inlet 11 is communicated with the water inlet cavity.

[0103] As Figures 5 - 7 shown, in this embodiment, the heating device sets a spiral diversion ring 203 in the interlayer between the heating pipe 202 and the diversion pipe 201, which reduces the internal volume of the heating device, so that the water flow entering the heating device becomes smaller, and the heating speed of water is increased; moreover, the spiral heating channel 100 makes the water flow spirally in the heating channel 100, forming a self-rotating water ring, increasing the contact opportunity between different parts of the water and the heating body, accelerating heat conduction, balancing the temperature of the heating body, avoiding local high-temperature heating points on the heating body, prolonging the service life of the heating body, and also preventing the water from being vaporized, so no steam is generated. At the same time, the self-rotating water ring also accelerates the heat exchange between the waters, with a fast temperature rise and small water temperature fluctuation. The spiral heating channel 100 extends the heating path, with a fast heating speed and uniform water temperature. Among them, for the convenience of processing and assembly, the diversion ring 203 is provided as a separate component between the diversion pipe 201 and the heating pipe 202. The diversion pipe 201 and the diversion ring 203 are arranged inside the heating pipe 202, so that the volume of the heating channel 100 in the interlayer is small, and thus the thermal expansion and contraction of the heating device are small. When the heating stops, the amount of heat overflow water is small.

[0104] In addition, as Figure 5As shown, the water inlet unit 205 has a water inlet 11, and the water inlet 11 is used to connect to tap water or purified water. Water flows into the heating pipe 202 through the water inlet 11 of the water inlet unit 205. While the first diverter 2051 diverts the water through the first blade 20511, it also turbulizes the water to form a self-rotating water ring, so that the water is disturbed before entering the heating pipe 202, increasing the contact opportunity between different parts of the water and the heating body, accelerating heat conduction, balancing the temperature of the heating body, avoiding local high-temperature heating points on the heating body, preventing the water from being vaporized, extending the life of the heating body, and at the same time also accelerating the heat exchange between the water, with small water temperature fluctuations.

[0105] As Figures 5 - 7 shown, in this embodiment, there are 6 groups of the first diversion channels 20512, so that the water is turbulized in advance before entering the heating channel 100, improving the turbulizing effect.

[0106] As Figure 7 shown, the first blade 20511 is inclined, and the inclination direction of the first blade 20511 is the same as the rotation direction of the heating channel 100, forming self-rotating water, increasing the contact opportunity between different water and the heating body, accelerating heat conduction, improving the turbulizing effect of the water. At the same time, the self-rotating water also accelerates the heat exchange between the water, with fast and uniform temperature rise. And, the self-rotating water has fast heat conduction, balancing the temperature of the heating body, avoiding burning out the heating body due to local high temperature.

[0107] In another embodiment, the first blade 20511 is inclined, and the inclination direction of the first blade 20511 is opposite to the rotation direction of the heating channel 100 to improve the turbulizing effect of the water.

[0108] As Figure 6 and Figure 7 shown, the heating device further includes a water outlet unit 206. The water outlet unit 206 cooperates with the water outlet end of the heating channel 100. The water outlet unit 206 includes an upper housing 2062, and the upper housing 2062 has a water outlet cavity. A second diverter 2061 is provided at the water outlet end of the heating channel 100. A plurality of second blades 20611 are provided on the second diverter 2061. Second diversion channels 20612 are formed between adjacent second blades 20611. The second diversion channels 20612 are respectively communicated with the water outlet cavity and the heating channel 100. After the water is heated by the heating pipe 202, it flows out from the water outlet 12 of the water outlet unit 206, and the user obtains the required hot water at the water outlet 12. The second diverter 2061 turbulizes the heated high-temperature water, enabling the water to be quickly mixed and balancing the water temperature at the water outlet 12.

[0109] As Figure 6 and Figure 7 shown, the second blade 20611 is inclined, and the inclination direction of the second blade 20611 is opposite to the rotation direction of the heating channel 100, enabling the water to flow out smoothly and reducing the water resistance.

[0110] In another embodiment, the second blade 20611 is inclined, and the inclination direction of the second blade 20611 is the same as the rotation direction of the heating channel 100, which improves the mixing effect of water and balances the water temperature at the water outlet.

[0111] As Figure 5 and Figure 6 shown, the heating device further includes a housing 1, and the heating pipe 202 is disposed inside the housing 1. The housing 1 is used for heat preservation to prevent the heat loss of the heating pipe 202, and the housing 1 is also used to protect the heating pipe 202.

[0112] As Figure 8 shown, the cross-section of the heating channel 100 along the axial direction of the heating pipe 202 has a first dimension segment 200 and a second dimension segment 300. The first dimension segment 200 is disposed close to the heating pipe 202, and the second dimension segment 300 is located in the middle of the cross-section. The length of the first dimension segment 200 is greater than the length of the second dimension segment 300, so that the cross-section forms a narrow middle structure and an open end structure. The open structure corresponds to the heating element, with a large water flow rate, and a larger area of the heating element can be utilized to heat the water, improving the heating efficiency. The narrow structure has a small water flow rate because it is far from the heating element, so as to balance the heating.

[0113] As Figure 5 and Figure 8 shown, the flow guide ring 203 is made of a heat-conducting material. The cross-section of the heating channel 100 along the axial direction of the heating pipe 202 is a regular figure, which includes a first straight segment 400, a first arc segment 500, a second straight segment 600, and a second arc segment 700 that are connected end to end in sequence. The first straight segment 400 and the second straight segment 600 are oppositely disposed, the first arc segment 500 and the second arc segment 700 are oppositely disposed, and the first arc segment 500 and the second arc segment 700 bulge in the direction of approaching each other. Since the flow guide ring 203 is made of a heat-conducting material, the heat of the heating pipe 202 can be transferred to the water in the heating channel 100 through the flow guide ring 203, so that the first straight segment 400, the first arc segment 500, and the second arc segment 700 can all heat the water simultaneously, increasing the heating area and improving the heating efficiency.

[0114] The flow guide ring 203 is made of a heat-conducting material. The flow guide ring 203 is in contact with the heating element. The heating pipe 202 can conduct heat through the spiral flow guide ring 203, increasing the contact area between the heating element and the water, and making the water heat up quickly.

[0115] In another embodiment, the number of the flow guide rings is multiple, and the multiple flow guide rings are evenly arranged along the circumferential direction of the flow guide pipe. By arranging multiple flow guide rings on the circumferential side of the flow guide pipe to form multiple spiral heating channels, the flow rate of the water flowing through each heating channel becomes smaller, and at the same time, the contact area between the heating element, the flow guide ring, and the water becomes larger, improving the heating speed of the water.

[0116] In this embodiment, forces are applied to both ends of the flow guiding ring 203 in the axial direction of the heating tube 202 to maintain elastic potential energy. Specifically, the flow guiding ring 203 can be compressed by the water inlet unit 205 and the water outlet unit 206 to keep the flow guiding ring 203 in elastic potential energy. On the one hand, the flow guiding ring 203 is fixed, and on the other hand, the gap between adjacent spirals is kept fixed to prevent the shape of the heating channel 100 from changing and affecting the heating effect. Further, the flow guiding ring 203 can be compressed by the first diverter 2051 and the second diverter 2061 to keep the flow guiding ring 203 in elastic potential energy.

[0117] This embodiment also discloses an instant hot water dispenser, which includes the heating device as described above.

[0118] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A heating device, characterized in that: It includes: Draft tube; A heating pipe, wherein the heating pipe is sleeved outside the flow guide pipe and a channel is formed between the heating pipe and the flow guide pipe; The inner wall of the heating tube constitutes a heating body; A guide ring, as a separate component, is disposed between the guide tube and the heating tube and is used to separate the channel into a spiral heating channel; A water inlet unit, the water inlet unit cooperates with the water inlet end of the heating channel, the water inlet unit includes a water inlet cavity, the water inlet end of the heating channel is provided with a first diverter, a plurality of first blades are provided on the first diverter, a first diverter channel is formed between adjacent first blades, and the first diverter channel is respectively connected to the water inlet cavity and the heating channel.

2. The heating device according to claim 1, characterized in that The first diversion channels are provided in 6 groups.

3. The heating device according to claim 1, characterized in that The first blade is arranged to be tilted, and the tilting direction of the first blade is consistent with the rotation direction of the heating channel.

4. The heating device according to claim 1, characterized in that The first blade is arranged to be inclined, and the inclination direction of the first blade is opposite to the rotation direction of the heating channel.

5. The heating device according to claim 1, characterized in that The heating device also includes a water outlet unit, which cooperates with the water outlet end of the heating channel. The water outlet unit includes an upper shell, and the upper shell has a water outlet cavity. The water outlet end of the heating channel is provided with a second diverter, and a plurality of second blades are provided on the second diverter. A second diverter channel is formed between adjacent second blades, and the second diverter channel is respectively connected to the water outlet cavity and the heating channel.

6. The heating device according to claim 5, characterized in that The second blade is arranged to be inclined, and the inclination direction of the second blade is opposite to the rotation direction of the heating channel.

7. The heating device according to claim 5, characterized in that The second blades are arranged tilted, and the tilting direction of the second blades is the same as the rotation direction of the heating channel.

8. The heating device according to claim 1, characterized in that The heating device also includes a shell, and the heating tube is arranged in the shell.

9. The heating device according to claim 1, characterized in that: The cross section of the heating channel along the axial direction of the heating tube has a first size segment and a second size segment, the first size segment is arranged close to the heating tube, the second size segment is located in the middle of the cross section, and the length of the first size segment is greater than the length of the second size segment.

10. The heating device according to claim 9, characterized in that The guide ring is made of a heat-conducting material, and the cross-section of the heating channel along the axial direction of the heating tube presents a regular pattern, wherein the regular pattern includes a first straight line segment, a first arc segment, a second straight line segment, and a second arc segment connected end to end in sequence, the first straight line segment and the second straight line segment are arranged opposite to each other, the first arc segment and the second arc segment are arranged opposite to each other, and the first arc segment and the second arc segment protrude in a direction approaching each other.

11. The heating device according to claim 1, characterized in that: The guide ring is made of heat-conducting material.

12. The heating device according to claim 1, characterized in that There are multiple flow guide rings, and the multiple flow guide rings are evenly arranged along the circumferential direction of the flow guide pipe.

13. The heating device according to claim 1, characterized in that Forces are applied to both ends of the guide ring in the axial direction of the heating tube to maintain elastic potential energy.

14. An instant hot water dispenser, characterized in that: The instant hot water dispenser comprises a heating device as claimed in any one of claims 1 to 13.

Images