Water purifier

Abstract

The water purifier comprises a main body, a filter element, a heat exchange water tank, a heat exchanger and an instant heating device, the main body is provided with a main body water inlet and a main body water outlet, the filter element, the heat exchange water tank and the heat exchanger are all arranged in the main body, the filter element is provided with a filter element water inlet and a filter element water outlet, and the heat exchanger is provided with a first channel and a second channel. The filter element water outlet is communicated with one end of the first channel, the heat exchange water tank is provided with a heat exchange inlet and a heat exchange outlet, the heat exchange inlet and the heat exchange outlet are communicated with the two ends of the second channel respectively, the instant heating device is provided with an instant heating channel, one end of the instant heating channel is communicated with the other end of the first channel, and the other end of the instant heating channel is communicated with the main body water outlet. The heat exchange water tank can store heat in advance, through cooperative heating of the heat exchanger and the instant heating device, the flow during hot water obtaining can be increased, it can be guaranteed that the obtained hot water can be instantly used after being heated, and then large-flow and high-quality water outlet of the hot water can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of water supply equipment technology, and in particular to a water purifier. Background Technology

[0002] Existing high-flow-rate water supply equipment typically uses instant heating to heat cold water. However, this type of instant water supply equipment has a relatively small flow rate and slow discharge. Some water supply equipment has an internal preheating container to preheat a portion of the cold water before discharging it, and then uses an instant heating device to reheat the preheated water. This increases the flow rate, but this design is prone to the problem of boiling water running dry, leading to a decrease in water quality. Utility Model Content

[0003] To address the problem of existing technologies being unable to obtain high-quality hot water at high flow rates, this utility model provides a water purifier.

[0004] This application provides a water purifier comprising a main body, a filter element, a hot water exchange tank, a heat exchanger, and an instant heating device. The main body has a main body inlet and a main body outlet. The filter element is disposed within the main body and has a filter element inlet and a filter element outlet. The hot water exchange tank and the heat exchanger are both disposed within the main body. The heat exchanger has a first channel and a second channel. The filter element outlet is connected to one end of the first channel. The hot water exchange tank has a heat exchange inlet and a heat exchange outlet, which are respectively connected to the two ends of the second channel. The instant heating device has an instant heating channel, one end of which is connected to the other end of the first channel, and the other end of which is connected to the main body outlet. The heat exchange medium flowing through the second channel is used to exchange heat with the water flowing through the first channel. In some embodiments, a hot water supply path for the heat exchange medium to flow is formed between the hot water exchange tank and the heat exchanger, and a circulation pump is disposed along the hot water supply path.

[0005] In some embodiments, the water purifier is further provided with a water purification pump, which is connected to the heat exchanger and communicates with the first channel;

[0006] Inside the heat exchanger, the water pumping direction of the purified water pump is opposite to that of the circulating pump.

[0007] In some embodiments, the heat exchange tank includes a tank body, a heating element, and an insulation layer. The tank body is vertically arranged relative to the bottom of the main body and has a hot water chamber inside. The insulation layer covers the inner wall and / or outer wall of the tank body. The heating element is connected to the tank body for heating the heat exchange medium.

[0008] In some embodiments, the heating element has a heating section disposed within the hot water chamber, the heating section being located near the middle or bottom of the housing.

[0009] In some embodiments, the heat exchange inlet and the heat exchange outlet are located in the housing and are both connected to the hot water cavity. The housing is also provided with a baffle plate, which is positioned opposite to the side of the heat exchange inlet that is closer to the hot water cavity.

[0010] In some embodiments, the heat exchange inlet is located at or near the bottom of the housing, and the heat exchange outlet is located at or near the top of the housing.

[0011] In some embodiments, the heat exchanger includes an inner tube and an outer tube, with the outer tube sleeved over the inner tube to form a double-layer tube structure.

[0012] The lumen of the inner tube is the first channel, and a gap is formed between the outer wall of the inner tube and the inner wall of the outer tube, which is the second channel; or,

[0013] The lumen of the inner tube is the second channel, and the gap is the first channel.

[0014] In some embodiments, the inner tube has a higher thermal conductivity than the outer tube.

[0015] In some embodiments, the heat exchanger is disposed along the inner and / or outer side of the hot water tank.

[0016] Compared with the prior art, the water purifier provided by this utility model has the following advantages: Since the heat exchange tank can store heat in advance, the flow rate of hot water can be increased through the coordinated heating of the heat exchanger and the instant heating device. At the same time, it can also ensure that the hot water is available immediately and avoid the problem of dry boiling water. Thus, a large flow rate and high quality of hot water can be achieved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of one embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the internal structure of one embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the structure of one embodiment of the hot water tank and heat exchanger provided in this application;

[0020] Figure 4 It is along Figure 3 A cross-sectional diagram of the XX line in the diagram;

[0021] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 6 This is a cross-sectional schematic diagram of the double-layered tube structure of the heat exchanger provided in this application.

[0023] 100. Main body; 200. Hot water tank; 21. Tank body; 22. Baffle plate; 23. Insulation layer; 300. Heat exchanger; 31. Inner tube; 32. Outer tube; 400. Circulation pump; 500. Filter element; 600. Purified water pump; 01. Heat exchange inlet; 02. Heat exchange outlet; 03. First channel; 04. Second channel; 05. Hot water chamber. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] like Figure 1 , Figure 2 The water purifier shown includes a main body 100, a filter element 500, a hot water tank 200, a heat exchanger 300, and an instant heating device. The main body 100 has a main body 100 inlet and a main body 100 outlet. The filter element 500 is disposed within the main body 100 and has a filter element 500 inlet and a filter element 500 outlet. The hot water tank 200 and the heat exchanger 300 are both disposed within the main body 100. Please refer to [link / reference]. Figure 4 , Figure 5 The heat exchanger 300 is provided with a first channel 03 and a second channel 04, which are not connected. The first channel 03 and the second channel 04 are used for the flow of heat exchange medium and purified water, respectively. The liquids flowing in the first channel 03 and the second channel 04 can exchange heat. It should be noted that the heat exchange medium is mainly contained in the heat exchange tank 200. The heat exchange medium can be water. When the heat exchange medium flows through the second channel 04 of the heat exchanger 300, the heat it carries is transferred to the water in the first channel 03, thereby heating the water in the first channel 03. Since different types of heat exchange media have different boiling points, the heat exchange medium can be water or oil, etc. In some embodiments, heat exchange media with a higher boiling point than water, such as oil, are used, which can heat the liquid flowing through the first channel 03 to a higher temperature.

[0031] Please refer to it again. Figure 2 , Figure 4 , Figure 5 As shown, the heat exchanger 300 is connected to the filter element 500 and the hot water tank 200 respectively. The outlet of the filter element 500 is connected to one end of the first channel 03. The water filtered by the filter element 500 flows into the first channel 03 of the heat exchanger 300. The hot water tank 200 is provided with a heat exchange inlet 01 and a heat exchange outlet 02. The heat exchange inlet 01 and the heat exchange outlet 02 are respectively connected to the two ends of the second channel 04. The heat exchange medium inside the hot water tank 200 flows into the second channel 04 for heat exchange and then flows out of the second channel 04 back to the hot water tank 200 for heating. This cycle continues to provide heat to the water in the first channel 03. The instant heating device is equipped with an instant heating channel. One end of the instant heating channel is connected to the other end of the first channel 03, and the other end of the instant heating channel is connected to the water outlet of the main body 100. The instant heating device can further heat the water that has been heated by the heat exchanger 300. In actual use, if the water temperature range heated by the heat exchanger 300 is limited, or if the temperature inside the hot water tank 200 is insufficient, the heat exchanger 300 may not be able to heat the water to a higher temperature. In this case, the instant heating device can perform secondary heating on the water to ensure that the water temperature reaches the required temperature.

[0032] Based on the above description, the water purifier provided in this application can increase the flow rate of hot water by storing heat in advance inside the hot water tank 200 and then heating it in conjunction with the heat exchanger 300 and the instant heating device. At the same time, it can ensure that the hot water is available immediately and avoid the problem of dry boiling water. Thus, it can achieve a large flow rate and high quality of hot water output.

[0033] The technical details of each component will be introduced below.

[0034] In some implementations, such as Figure 2 As shown, a hot water supply path for the heat exchange medium to flow is formed between the hot water tank 200 and the heat exchanger 300, and a circulation pump 400 is installed along the hot water supply path. In actual use, when water is heated by the heat exchanger 300, the heat exchange medium circulates along the hot water supply path, thereby continuously providing heat to the heat exchanger 300, and the circulation pump 400 provides power for the circulation of the heat exchange medium.

[0035] In some implementations, such as Figure 2 , Figure 5 As shown, the water purifier provided in this application is also equipped with a water purification pump 600. The water purification pump 600 is connected to the heat exchanger 300 and communicates with the first channel 03. The water purification pump 600 is used to drive the water purified by the filter element 500 to flow. Under the action of the water purification pump 600, the purified water flows through the first channel 03 of the heat exchanger 300 and the instant heating channel of the instant heating device in sequence, and finally flows out from the water outlet of the main body 100.

[0036] Inside the heat exchanger 300, the water pump 600 pumps water in the opposite direction to the circulating pump 400. This arrangement increases the heat exchange efficiency of the heat exchanger 300, allowing the heat of the heat exchange medium in the second channel 04 to be transferred to the water in the first channel 03 more efficiently.

[0037] In some implementations, such as Figure 2 , Figure 3 , Figure 4 As shown, the aforementioned hot water exchange tank 200 includes a tank body 21, a heating element, and an insulation layer 23. The tank body 21 is vertically positioned relative to the bottom of the main body 100 and contains a hot water chamber 05. In its vertical position, the water temperature inside the hot water exchange tank 200 will be layered, with high-temperature water above the tank body 21 and low-temperature water below. The insulation layer 23 covers the inner and / or outer walls of the tank body 21, and the heating element is connected to the tank body 21 to heat the heat exchange medium.

[0038] Preferably, the heating element has a heating section disposed in the hot water chamber 05, the heating section being close to the middle or bottom of the housing 21 to facilitate heating the low-temperature water in the middle and bottom of the housing 21.

[0039] In practical use, if the heating element is located at the bottom of the tank 21, when the heating element heats the water, the heated water will surge upwards, thereby generating convection inside the entire tank 21. This will cause the water at the bottom of the tank 21, which is very cold, to mix with the hot water at the top of the tank 21, thus adversely affecting the temperature maintenance of the hot water at the top of the tank 21. However, the advantage of this arrangement is that, since the heating device is located at the bottom of the tank 21, it can heat the heat exchange medium inside the entire tank 21 under the action of hot and cold water convection, ensuring that the heat exchange tank 200 can store heat to the maximum extent.

[0040] If the heating element is located in the middle of the housing 21, the temperature of the heat exchange medium in the middle of the housing 21 is in an intermediate state, making it easier to be heated to a high temperature. When the heating element is heating, the heated water will flow upward into the top of the housing 21, resulting in convection only between the middle and top of the housing 21. This will prevent the low-temperature water at the bottom of the housing 21 from being carried to the top of the housing 21, thus helping to maintain the temperature of the high-temperature water at the top of the housing 21. This allows the heat exchanger 300 to heat some of the heat exchange medium to a higher temperature in a shorter time and store it at the top of the housing. However, the disadvantage of this arrangement is that, since the heating element is located in the middle of the housing 21, it cannot effectively heat the low-temperature water at the bottom of the housing 21, which is not conducive to the heat exchange tank 200 storing heat to the maximum extent.

[0041] To address the shortcomings of the two heating element configurations mentioned above, in some embodiments, heating elements are provided at both the middle and bottom of the housing 21. These two heating elements can heat the heat exchange medium inside the hot water tank 200 individually or simultaneously. Specific details are as follows:

[0042] When the water purifier is not in use, the hot water tank 200 needs to quickly store heat. At this time, the two heating elements can heat the heat exchange medium inside the hot water tank 200 simultaneously, so that the hot water tank 200 can quickly store heat to the maximum extent for the next use.

[0043] When the water purifier is discharging water, in order to ensure that the high-temperature water at the top of the hot water exchange tank 200 is not affected, the heating section in the middle heats the heat exchange medium, while the heating section at the bottom stops working, thus avoiding convection from having a significant impact on the high-temperature water at the top of the hot water exchange tank 200.

[0044] In summary, by setting heating elements in the middle and bottom of the hot water tank 200, the aforementioned problems are effectively avoided.

[0045] In other embodiments, the heating element can also be located outside the hot water exchange tank 200. The heat exchange medium in the hot water exchange tank 200 is driven by a pump to circulate through the heating element. The heating element heats the heat exchange medium flowing through it, and the heated heat exchange medium flows into the hot water exchange tank 200, so that the heating element heats the heat exchange medium and stores it in the hot water exchange tank 200.

[0046] In some implementations, such as Figure 4 The aforementioned insulation layer 23 can be a vacuum interlayer. The housing 21 includes an inner layer and an outer layer, with the inner layer nested inside the outer layer. The outer layer and the inner layer are spaced apart to form the vacuum interlayer, which can improve the insulation effect of the hot water exchange tank 200. In other embodiments, the aforementioned insulation layer 23 can also be insulation cotton or insulation foam (e.g., polyurethane foam) or other materials with insulation effects.

[0047] In some implementations, such as Figure 3 , Figure 4 As shown, the heat exchange inlet 01 and heat exchange outlet 02 are located in the housing 21 and are both connected to the hot water chamber 05. The housing 21 is also equipped with a baffle plate 22, which is positioned opposite to the side of the heat exchange inlet 01 closest to the hot water chamber 05. In actual use, the heat exchange medium is at a low temperature when it flows into the hot water chamber 05 through the heat exchange inlet 01, and the water flow is relatively concentrated. This causes a significant impact on the heat exchange medium inside the hot water chamber 05, resulting in the mixing of the high-temperature water inside the hot water chamber 05 with the newly flowing low-temperature water. Consequently, the water temperature inside the hot water tank 200 drops rapidly. The baffle plate 22 can block and disperse the water flow when the heat exchange medium in the low temperature state flows into the hot water chamber 05, which greatly reduces the disturbance of the water in the hot water chamber 05 when the heat exchange medium in the low temperature state flows back into the hot water chamber 05. As a result, the stratification of high and low temperature water in the hot water chamber 05 is not easily disrupted, and the hot water tank 200 can output a higher temperature heat exchange medium to the heat exchanger 300 for a longer period of time.

[0048] Furthermore, the heat exchange inlet 01 is located at or near the bottom of the housing 21, and the heat exchange outlet 02 is located at or near the top of the housing 21. Since the housing 21 is vertically oriented, the temperature of the heat exchange medium at the top of the housing 21 is higher than that at the bottom. Therefore, this arrangement allows the heat exchanger 300 to obtain more high-temperature water.

[0049] In some embodiments, the first channel 03 and the second channel 04 are arranged at intervals, and the liquids (i.e., the water to be heated and the heat exchange medium) flowing in the first channel 03 and the second channel 04 respectively exchange heat and do not mix with each other.

[0050] In some implementations, such as Figure 4 , Figure 5 As shown, the heat exchanger 300 includes an inner tube 31 and an outer tube 32, with the outer tube 32 sleeved outside the inner tube 31 to form a double-layer tube structure.

[0051] The lumen of the inner tube 31 is the first channel 03, and a gap is formed between the outer wall of the inner tube 31 and the inner wall of the outer tube 32, which is the second channel 04; or,

[0052] The lumen of the inner tube 31 is the second channel 04, and the gap is the first channel 03.

[0053] For preferred options, please refer to [link / reference]. Figure 5 The inner tube 31 has a first channel 03 for the flow of water purified by filter element 500, and a second channel 04 for the flow of the heat exchange medium. This design ensures that the water to be heated is spatially surrounded by the heat exchange medium, preventing heat loss and allowing it to be rapidly heated to a higher temperature. A detailed analysis follows... Figure 6 As shown (arrows in the diagram indicate the direction of heat transfer):

[0054] It is understandable that if heat is transferred from the gap to the inner tube 31 lumen, the area of ​​water that needs to be transferred gradually decreases, while if heat is transferred from the inner tube 31 lumen to the gap, the area of ​​water that needs to be transferred gradually increases. Comparing the two, it is understandable that the former heat transfer method makes it easier for heat to accumulate, which helps to achieve high-efficiency heat exchange.

[0055] In some implementations, such as Figure 4 , Figure 5 As shown, the thermal conductivity of the inner tube 31 is greater than that of the outer tube 32. Specifically, the inner tube 31 can be made of a metal with good thermal conductivity, such as copper or aluminum, which can greatly improve the heat exchange rate between the heat exchange medium and the water purified by the filter element 500. The outer tube 32 can be made of heat insulation material, which can reduce the heat loss of the heat exchange medium to the external environment, so that the heat of the heat exchange medium can be transferred to the water purified by the filter element 500 as much as possible.

[0056] In other embodiments, the outer tube 32 is also covered with a layer of insulation material to reduce the heat loss of the heat exchange medium. In other embodiments, the inner tube 31 and the outer tube 32 may also be arranged in close contact with each other, or in other arrangements, as long as the heat exchange medium flowing through the second channel 04 can exchange heat with the water flowing through the first channel 03, which is not limited here.

[0057] In some implementations, such as Figure 2 , Figure 3 , Figure 4As shown, the heat exchanger 300 is arranged along the inner and / or outer side of the hot water tank 200.

[0058] If the heat exchanger 300 is installed along the outside of the hot water tank 200, it will be convenient to install the heat exchanger 300 during production and processing.

[0059] Based on the above structure, the outer surface of the heat exchanger 300 can also be covered with insulation material, which can not only insulate the heat exchanger 300, but also insulate the hot water tank 200.

[0060] If the heat exchanger 300 is installed along the inner side of the hot water tank 200, the heat lost through the heat exchanger 300 during the heat exchange process will be reduced, and the heat exchange efficiency of the heat exchanger 300 will be improved.

[0061] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water purifier, characterized in that, include: The main body (100) has a main body (100) inlet and a main body (100) outlet; A filter element (500) is disposed within the main body (100) and has a filter element (500) inlet and a filter element (500) outlet; A hot water tank (200) and a heat exchanger (300) are provided, both of which are located within the main body (100). The heat exchanger (300) is provided with a first channel (03) and a second channel (04). The outlet of the filter element (500) is connected to one end of the first channel (03). The hot water tank (200) is provided with a heat exchange inlet (01) and a heat exchange outlet (02). The heat exchange inlet (01) and the heat exchange outlet (02) are respectively connected to the two ends of the second channel (04). An instant heating device is provided with an instant heating channel. One end of the instant heating channel is connected to the other end of the first channel (03), and the other end of the instant heating channel is connected to the water outlet of the main body (100). The heat exchange medium flowing through the second channel (04) is used to exchange heat with the water flowing through the first channel (03).

2. The water purifier according to claim 1, characterized in that, A hot water supply path for the heat exchange medium to flow is formed between the hot water tank (200) and the heat exchanger (300), and a circulation pump (400) is provided along the hot water supply path.

3. The water purifier according to claim 2, characterized in that, The water purifier is also equipped with a water purification pump (600), which is connected to the heat exchanger (300) and communicates with the first channel (03); Inside the heat exchanger (300), the water pump (600) pumps water in the opposite direction to the water pump (400).

4. The water purifier according to claim 1, characterized in that, The heat exchange tank (200) includes a tank body (21), a heating element and an insulation layer (23). The tank body (21) is vertically arranged relative to the bottom of the main body (100) and has a hot water chamber (05) inside. The insulation layer (23) covers the inner wall and / or outer wall of the tank body (21). The heating element is connected to the tank body (21) for heating the heat exchange medium.

5. The water purifier according to claim 4, characterized in that, The heating element has a heating section disposed in the hot water chamber (05), the heating section being close to the middle or bottom of the housing (21).

6. The water purifier according to claim 4, characterized in that, The heat exchange inlet (01) and the heat exchange outlet (02) are located in the housing (21) and are both connected to the hot water chamber (05). The housing (21) is also provided with a baffle plate (22), which is positioned opposite to the side of the heat exchange inlet (01) near the hot water chamber (05).

7. The water purifier according to claim 4, characterized in that, The heat exchange inlet (01) is located at or near the bottom of the housing (21), and the heat exchange outlet (02) is located at or near the top of the housing (21).

8. The water purifier according to any one of claims 1-7, characterized in that, The heat exchanger (300) includes an inner tube (31) and an outer tube (32), wherein the outer tube (32) is sleeved outside the inner tube (31) to form a double-layer tube structure; The lumen of the inner tube (31) is the first channel (03), and a gap is formed between the outer wall of the inner tube (31) and the inner wall of the outer tube (32), the gap being the second channel (04); or, The lumen of the inner tube (31) is the second channel (04), and the gap is the first channel (03).

9. The water purifier according to claim 8, characterized in that, The inner tube (31) has a higher thermal conductivity than the outer tube (32).

10. The water purifier according to any one of claims 1-7, characterized in that, The heat exchanger (300) is disposed along the inner and / or outer side of the hot water tank (200).

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