Heat collection device and water heater

Abstract

The embodiment of the utility model belongs to the technical field of water heaters, and particularly relates to a heat collection device and a water heater. The heat collection device comprises a heat absorption plate, a heat collection pipe and a heat exchange piece. The heat exchange piece is at least used for communicating with the water tank and provided with a containing cavity, and the containing cavity is at least used for heat circulation with the water tank; the absorber plate is at least used for obtaining solar thermal energy; the heat collecting pipe is arranged on the heat absorbing plate and comprises an extending section, and the extending section is arranged in the containing cavity. According to the heat collection device and the water heater, the problem that the heat exchange efficiency between the heat collection device and the water tank is low is solved, and the heat energy utilization rate of the heat collection device is increased.

Description

Technical Field

[0001] This application belongs to the field of water heater technology, specifically relating to a heat collection device and a water heater. Background Technology

[0002] A solar water heater is a device that uses solar radiation to convert solar radiation into heat energy, thereby heating water. A solar water heater consists of a collector and a water tank. The collector is usually installed in an open and unobstructed location such as a roof to receive solar radiation, generate heat energy, and transfer the heat energy to the water tank to heat the water inside.

[0003] Existing solar water heaters have low heat exchange efficiency between the collector and the water tank, resulting in low thermal energy utilization of the collector. Utility Model Content

[0004] This application provides a heat collection device and a water heater, which can improve the heat exchange efficiency between the heat collection device and the water tank, and improve the thermal energy utilization rate of the heat collection device.

[0005] In a first aspect, this application provides a heat collection device, including a heat absorption plate, a heat collection tube, and a heat exchange component;

[0006] The heat absorber is used at least to obtain solar thermal energy;

[0007] The heat exchanger is at least used to communicate with the water tank, and the heat exchanger is provided with a receiving cavity, which is at least used for heat circulation with the water tank.

[0008] The heat collection tube is disposed on the heat absorption plate, and the heat collection tube includes an extension section disposed within the receiving cavity.

[0009] In one possible design, the heat collection tube includes a connecting section and multiple heat collection sections;

[0010] In the width direction of the heat absorption plate, a plurality of heat collection sections are arranged in parallel, and the plurality of heat collection sections are connected end to end in sequence to form a heat collection section group;

[0011] The first end of the connecting section is connected to the liquid inlet of the heat collection section group, and the second end of the connecting section is connected to the liquid outlet of the heat collection section group.

[0012] In one possible design, there are multiple extension sections, which are correspondingly arranged on the heat collection section;

[0013] Between the liquid inlet end and the liquid outlet end of the heat exchanger, a plurality of extension sections are arranged sequentially at intervals.

[0014] In one possible design, there are multiple extension segments, and the multiple extension segments are disposed on the connecting segment;

[0015] Between the liquid inlet end and the liquid outlet end of the heat exchanger, a plurality of the extension sections are connected in sequence.

[0016] In one possible design, the extension direction of the heat exchanger forms an angle with the width direction of the heat absorber, and the height of the liquid inlet end of the heat exchanger is lower than the height of the liquid outlet end of the heat exchanger.

[0017] In one possible design, the heat-absorbing plate has a first surface and a second surface disposed opposite to each other;

[0018] The first surface of the heat-absorbing plate is used to absorb heat energy, and the heat-collecting tube is disposed on the second surface of the heat-absorbing plate.

[0019] Secondly, this application provides a water heater, including a water tank and any of the above-mentioned heat collection devices;

[0020] The water tank has a heat circulation inlet and a heat circulation outlet, and the heat exchanger has a liquid outlet and a liquid inlet, both of which are connected to the receiving cavity;

[0021] The heat circulation inlet is connected to the liquid outlet, and the heat circulation outlet is connected to the liquid inlet.

[0022] In one possible design, the water tank and the heat absorption plate at least partially overlap in the horizontal direction;

[0023] The heat-absorbing plate has a first surface and a second surface arranged opposite to each other, and the first surface of the heat-absorbing plate is used to absorb heat energy.

[0024] And / or, the water tank faces the second surface of the heat absorber plate.

[0025] In one possible design, the top of the water tank is lower than the top of the solar collector, and the bottom of the water tank is higher than the bottom of the solar collector.

[0026] In one possible design, the height of the liquid inlet is not higher than the height of the heat circulation outlet, and the height of the liquid outlet is not higher than the height of the heat circulation inlet.

[0027] In one possible design, the water tank is provided with a tank liner, which is at least used to hold hot water;

[0028] The tank liner is connected to the liquid outlet through the heat circulation inlet, and the tank liner is connected to the liquid inlet through the heat circulation outlet.

[0029] In one possible design, the water tank is provided with a tank liner and a heat exchange tank; the tank liner is used to contain at least hot water, and the heat exchange tank is used to contain at least refrigerant;

[0030] The heat exchange box is connected to the liquid outlet through the heat circulation inlet, and the heat exchange box is connected to the liquid inlet through the heat circulation outlet.

[0031] The solar collector and water heater provided in this application include a solar collector comprising an absorber plate, a solar collector tube, and a heat exchanger. The solar collector tube is disposed on the absorber plate, and the solar thermal energy captured by the absorber plate can be transferred to the solar collector tube, and then transferred by the solar collector tube to the heat exchanger. The heat exchanger is connected to a water tank. Through the thermal circulation between the heat exchanger and the water tank, it is ensured that heat energy can be transferred from the solar collector to the water tank, thereby heating the water in the water tank.

[0032] By incorporating an extension section on the heat collection tube and a receiving cavity within the heat exchange element, the extension section can directly contact the liquid inside the cavity, transferring heat to the liquid. This heat transfer method results in a shorter transfer path and more direct heat exchange, reducing heat loss, improving heat transfer efficiency, and ultimately enhancing the thermal energy utilization rate of the heat collection device.

[0033] If the thermal energy utilization rate of the heat collection device is improved, more thermal energy can be transferred from the heat collection device to the water tank, and the heat exchange efficiency between the heat collection device and the water tank can also be improved. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of a water heater provided in an embodiment of this application. Figure 1 ;

[0036] Figure 2 A schematic diagram of the structure of a water heater provided in an embodiment of this application. Figure 2 ;

[0037] Figure 3 A schematic diagram of the structure of a water heater provided in an embodiment of this application. Figure 3 ;

[0038] Figure 4 for Figure 1 Structural diagram of a medium-sized water heater from another perspective Figure 1 ;

[0039] Figure 5 for Figure 1 Structural diagram of a medium-sized water heater from another perspective Figure 2 .

[0040] Figure label:

[0041] 110 - Heat Absorber Plate;

[0042] 130 - Heat collector tube; 131 - Heat collector section; 132 - Connecting section; 133 - Extension section;

[0043] 200 - Water tank; 210 - Heat circulation inlet; 220 - Heat circulation outlet; 230 - Tank liner; 240 - Heat exchanger box;

[0044] 300 - Support base; 310 - Tie rod;

[0045] 400-Hot water pipe;

[0046] 500-Cold water pipe;

[0047] 600 - Heat exchanger; 601 - Receiving cavity; 610 - Liquid outlet; 620 - Liquid inlet;

[0048] 90 - Installation foundation. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0051] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0052] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0053] Unless otherwise stated, the term "multiple" means two or more.

[0054] As can be seen from the background art, a solar water heater includes a solar collector and a water tank connected together. The solar collector is usually installed in an open and unobstructed location such as a roof to receive solar radiation, generate heat energy, and transfer the heat energy to the water tank to heat the water in the tank.

[0055] Taking a pulsed heat pipe solar collector as an example, it typically includes an absorber plate and a collector tube. The absorber plate absorbs external heat and transfers the heat to the collector tube. The working fluid inside the collector tube evaporates after being heated, generating a pressure difference that drives the working fluid to circulate within the tube. In this process, the collector tube can transfer heat to the object to be heated, thus achieving the heating function.

[0056] To enable modular installation, some solar water heaters also incorporate heat exchangers in the collector unit. The collector tubes are positioned on the outside of the heat exchanger to transfer heat to it. The water in the tank is then heated through the circulation of refrigerant between the heat exchanger and the water tank.

[0057] However, in the above configuration, the heat collection tube does not directly contact the refrigerant inside the heat exchanger. During the heat exchange process, the contact effect between the heat collection tube and the refrigerant inside the heat exchanger is poor, and the heat transfer path is limited. This will restrict the heat energy conversion efficiency between the heat collection device and the water tank, thereby reducing the heat energy utilization rate of the heat collection device.

[0058] In view of this, embodiments of this application provide a solar collector and a water heater. The solar collector includes an absorber plate, a collector tube, and a heat exchanger; the collector tube is disposed on the absorber plate. The solar thermal energy acquired by the absorber plate can be transferred to the collector tube, and then transferred by the collector tube to the heat exchanger.

[0059] By setting an extension section on the heat collection tube and a receiving cavity in the heat exchange element, the extension section can directly contact the liquid in the receiving cavity and transfer heat to the liquid.

[0060] The heat transfer methods described above offer a more direct heat exchange. Compared to the method where the heat collection tubes are located on the outside of the heat exchanger, this reduces intermediate steps in heat transfer, shortens the heat transfer path, reduces heat loss, improves heat transfer efficiency, and helps increase the thermal energy utilization rate of the heat collection device.

[0061] A water heater includes a water tank and a heat collector, with the heat exchanger of the heat collector connected to the water tank. Through heat circulation between the housing and the water tank, heat energy can be transferred from the heat collector to the water tank, thereby heating the water inside.

[0062] If the thermal energy utilization rate of the heat collection device is improved, more thermal energy can be transferred from the heat collection device to the water tank, and the heat exchange efficiency between the heat collection device and the water tank can also be improved.

[0063] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0064] Combination Figure 1 As shown, the first aspect of this application provides a heat collection device, including a heat absorption plate 110, a heat collection tube 130, and a heat exchanger 600.

[0065] The heat absorber plate 110 can be used to obtain solar thermal energy. The heat collector tube 130 is disposed on the heat absorber plate 110, and the heat absorber plate 110 can transfer heat energy to the heat collector tube 130.

[0066] The heat collection tube 130 is disposed on the heat absorption plate 110 and can be used to transfer the heat energy acquired by the heat absorption plate 110, so that the heat energy absorbed by the heat absorption plate 110 can be quickly transferred to other parts of the heat collection device (such as the heat exchanger 600).

[0067] In some embodiments, the heat exchanger 600 is provided with a receiving cavity 601, and the heat collection tube 130 includes an extension 133 disposed within the receiving cavity 601.

[0068] The heat collection tube 130 is a heat transfer channel. By setting the extension section 133 in the receiving cavity 601, the heat collection tube 130 can directly contact the liquid in the receiving cavity 601 to heat the liquid. This direct contact method reduces intermediate steps in heat transfer and can improve the heat transfer efficiency between the heat collection tube 130 and the heat exchanger 600.

[0069] In some embodiments, the heat exchanger 600 may be in communication with the water tank 200, and the receiving cavity 601 may be in thermal circulation with the water tank 200.

[0070] Understandably, after the liquid in the receiving cavity 601 receives the heat energy from the heat collection device, it transfers the heat to the water tank 200 to heat the water in the water tank 200 in order to meet the user's need for hot water.

[0071] The liquid output from the water tank 200 returns to the receiving cavity 601, where it exchanges heat with the heat collection tube 130 again and is heated. The heated liquid can then re-enter the water tank 200 to further heat the water inside the water tank 200. In this way, a heat cycle is achieved between the receiving cavity 601 and the water tank 200.

[0072] The heat collection device provided in this application embodiment uses a heat exchanger 600 as an intermediate medium between the water tank 200 and the heat collection tube 130. The heat exchanger 600 can transfer heat from the heat collection device to the water tank 200. By setting the extension section 133 in the receiving cavity 601, the heat transfer efficiency between the heat collection tube 130 and the heat exchanger 600 can be improved, and the thermal energy utilization rate of the heat collection device can be improved, thereby helping to improve the heat exchange efficiency between the heat collection device and the water tank 200.

[0073] It is understandable that directly inserting the heat collection tube 130 into the water tank 200 may cause the water tank 200 to be subjected to excessively high temperatures, affecting the durability of the water tank 200.

[0074] The heat exchanger 600 serves as an intermediate medium between the water tank 200 and the heat collection tube 130. It can also regulate the temperature during the heat transfer process to ensure that the water tank 200 operates within a safe temperature range and effectively transfer the heat collected by the heat collection device to the water tank 200.

[0075] For example, the heat exchanger 600 can be configured to be detachable, making it easy to install, maintain, and replace, thereby simplifying the water heater's production process and installation procedures, reducing manufacturing and installation time, and improving efficiency. By implementing a modular design for the water heater, it can adapt to diverse user needs and installation scenarios.

[0076] Combination Figure 1 As shown, in some embodiments, the heat collection tube 130 includes a connecting section 132 and a plurality of heat collection sections 131; in the width direction of the heat absorption plate 110, the plurality of heat collection sections 131 are arranged in parallel, and the plurality of heat collection sections 131 are connected end to end in sequence to form a heat collection section group.

[0077] By dividing the heat collection tube 130 into a connecting section 132 and multiple heat collection sections 131, it is easier to adjust and optimize during manufacturing and installation. The heat collection tube 130 can be arranged more flexibly to adapt to different sizes and shapes of the heat absorption plate 110.

[0078] By arranging the collector sections 131 in parallel, the surface area of ​​the absorber plate 110 can be fully utilized, increasing the solar thermal energy capture efficiency. Furthermore, the collector sections 131 connected end to end can form a continuous fluid path, ensuring uniform heating and efficient transfer of fluid within the collector tube 130.

[0079] In some embodiments, the first end of the connecting segment 132 is connected to the liquid inlet of the heat collection section group, and the second end of the connecting segment 132 is connected to the liquid outlet of the heat collection section group.

[0080] Understandably, the connecting section 132 serves as the inlet and outlet of the heat collection section group, playing a role in fluid guidance and path connection.

[0081] The connecting section 132 ensures smooth flow of fluid when entering and leaving the heat collection section group, allowing the fluid to circulate efficiently within the heat collection tube 130.

[0082] For example, the heat collector tube 130 may be a pulsating heat pipe. The heat collector tube 130 is filled with a working fluid (such as water, ethanol, etc.).

[0083] When the solar collector tube 130 is heated, the working fluid inside absorbs heat and evaporates, forming steam. The steam flows inside the tube, and when it reaches a cooler area (near the heat exchanger 600), it condenses, releasing heat in the process. The condensed working fluid then flows back to the heating area to continue circulating after heating.

[0084] The liquid in the containment cavity 601 can absorb the heat released during the condensation process and rise in temperature by contacting the heat collection tube 130, and can transfer the heat to the water tank 200 when it is in thermal circulation with the water tank 200.

[0085] By designing the collector tube 130 as a pulsating heat pipe, the efficiency of heat absorption and transfer can be effectively improved, heat loss reduced, and the overall energy efficiency of the water heater enhanced. Furthermore, the pulsating heat pipe features a highly efficient phase change and circulation mechanism, making the collector device highly adaptable and capable of stable operation under various environmental conditions. Moreover, the pulsating heat pipe eliminates the need for additional mechanical moving parts, resulting in higher reliability and a longer service life for the collector device.

[0086] Combination Figure 1 As shown, in some embodiments, there are multiple extension sections 133, which are arranged sequentially and at intervals between the liquid inlet end 620 and the liquid outlet end 610 of the heat exchanger 600.

[0087] The design of multiple extensions 133 allows heat to be transferred at multiple locations within the housing cavity 601, reducing the heat load at any single location and improving heat utilization.

[0088] Multiple extension sections 133 are arranged at intervals in sequence, which also increases the contact area between the heat collection tube 130 and the liquid in the receiving cavity 601.

[0089] According to the basic principles of heat conduction, increasing the contact area can enhance the heat transfer effect. By increasing the contact area between the heat collector tube 130 and the liquid in the receiving cavity 601, it is ensured that heat energy can be transferred quickly and evenly from the heat collector tube 130 to the heat exchanger 600.

[0090] In some embodiments, the extension section 133 is correspondingly disposed on the heat collection section 131. That is, each heat collection section 131 is provided with an extension section 133 corresponding to the heat exchanger 600, so that the steam formed by the working fluid inside each heat collection section 131 when heated can flow quickly to the heat exchanger 600 for condensation, so as to quickly transfer heat to the heat exchanger 600.

[0091] This design reduces the flow path of steam inside the collector section 131, which helps to achieve efficient heat exchange between the collector tube 130 and the heat exchanger 600.

[0092] Combination Figure 2 As shown, in some embodiments, there are multiple extension sections 133, which are connected sequentially between the liquid inlet end 620 and the liquid outlet end 610 of the heat exchanger 600.

[0093] The design of multiple extensions 133 allows heat to be transferred at multiple locations within the housing cavity 601, reducing the heat load at any single location and improving heat utilization.

[0094] Furthermore, the multiple extensions 133 increase the contact area between the heat collection tube 130 and the liquid in the receiving cavity 601, enabling heat energy to be quickly transferred from the heat collection tube 130 to the heat exchanger 600.

[0095] In some embodiments, a plurality of extension segments 133 are disposed on the connection segment 132;

[0096] The sequentially connected extension sections 133 are located at the connection section 132, which can improve the modularity of the heat collection tube 130, simplify the assembly process of the heat collection tube 130, and make manufacturing and installation more convenient. At the same time, this modular design also facilitates the assembly of the heat collection tube 130 and the heat exchange component 600, improving the overall installation efficiency and maintenance convenience.

[0097] In some embodiments, the extending direction of the heat exchanger 600 forms an angle with the width direction of the heat absorber plate 110, and the height of the liquid inlet end 620 of the heat exchanger 600 is lower than the height of the liquid outlet end 610 of the heat exchanger 600.

[0098] It is understandable that the heat exchanger 600 is inclined if the extension direction of the heat exchanger 600 is at an angle to the width direction of the heat absorber 110.

[0099] The liquid inlet end 620 and the liquid outlet end 610 are located at both ends of the extension direction of the heat exchanger 600, and the receiving cavity 601 is connected to the water tank 200 through the liquid inlet end 620 and the liquid outlet end 610.

[0100] Heat conduction occurs between the containment cavity 601 and the heat collection tube 130. The liquid in the containment cavity 601 is heated, and the increased temperature causes the density to decrease. The liquid will naturally rise and flow to the higher liquid outlet 610.

[0101] The high-temperature liquid located at the outlet 610 will flow into the water tank 200 during the rising process, and exchange heat with the water in the water tank 200, so that the water in the water tank 200 can be heated.

[0102] The cooler liquid in the water tank 200 can flow to the lower inlet end 620 and enter the receiving cavity 601. The liquid entering the receiving cavity 601 exchanges heat with the heat collector tube 130 again and is heated. The heated liquid can then enter the water tank 200 again from the outlet end 610 of the heat exchange element 600 to further heat the water in the water tank 200.

[0103] As can be seen, the high-temperature liquid can flow from the receiving cavity 601 into the water tank 200, where it exchanges heat with the water in the water tank 200. The cooled liquid flows out of the water tank 200 and enters the receiving cavity 601 to be heated. In this way, a heat cycle is achieved between the receiving cavity 601 and the water tank 200.

[0104] With this configuration, the water tank 200 and the heat exchanger 600 form a closed thermal circulation loop. This thermal circulation loop makes full use of the natural law that hot water rises and cold water falls, and can maintain the heat transfer process between the heat exchanger 600 and the water tank 200 without the need for additional power.

[0105] In some embodiments, the heat absorber plate 110 has a first surface and a second surface disposed opposite to each other; the first surface of the heat absorber plate 110 is used to absorb heat energy.

[0106] The first surface of the heat absorber 110 faces the sun and can be used to absorb solar thermal energy. The second surface faces the mounting base 90 and can be used to transfer heat energy. After the first surface of the heat absorber 110 absorbs solar energy, the heat energy can be transferred to the second surface through the thermal conductivity of the material.

[0107] For example, the heat absorber 110 may be made of a highly thermally conductive material and coated with a selective absorption coating to improve the absorption rate of solar thermal energy.

[0108] In some embodiments, the heat collection tube 130 is disposed on the second surface of the heat absorption plate 110.

[0109] The heat collection tube 130 can be disposed close to the second surface of the heat absorption plate 110 so that the heat absorption plate 110 can efficiently transfer the absorbed heat energy to the heat collection tube 130 and reduce heat loss.

[0110] Combination Figures 1 to 5 As shown, a second aspect of this application provides a water heater, including a water tank 200 and a heat collection device provided in any of the above embodiments.

[0111] The heat collection device has been described in detail in the above embodiments and will not be repeated here.

[0112] In some embodiments, the water tank 200 has a heat circulation inlet 210 and a heat circulation outlet 220. The heat exchanger 600 has a receiving cavity 601 inside, and the liquid outlet 610 and the liquid inlet 620 of the heat exchanger 600 are both in communication with the receiving cavity 601.

[0113] The heat circulation inlet 210 is connected to the liquid outlet 610, and the heat circulation outlet 220 is connected to the liquid inlet 620, so the receiving cavity 601 can be connected to the water tank 200.

[0114] With this configuration, the water tank 200 and the heat exchanger 600 can form a closed thermal circulation loop. High-temperature liquid can flow from the outlet 610 of the heat exchanger 600 into the water tank 200, enter through the thermal circulation inlet 210, and exchange heat with the water in the water tank 200. Cooled liquid flows out from the thermal circulation outlet 220 of the water tank 200, enters the inlet 620 of the heat exchanger 600, comes into contact with the circulating liquid in the receiving cavity 601, and is reheated.

[0115] The water heater provided in this application embodiment adopts the design of an extension section 133 in the heat collection device, so that the extension section 133 of the heat collection tube 130 is inserted into the inner side of the heat exchanger 600. The extension section 133 can directly contact the liquid in the receiving cavity 601 and transfer heat to the liquid.

[0116] The heat transfer method described above offers a more direct heat exchange. Compared to the configuration where the collector tube 130 is positioned outside the heat exchanger 600, it reduces intermediate steps in heat transfer, shortens the heat transfer path, reduces heat loss, improves heat transfer efficiency, and helps increase the thermal energy utilization rate of the heat collection device.

[0117] If the thermal energy utilization rate of the heat collection device is improved, more thermal energy can be transferred from the heat collection device to the water tank 200, and the heat exchange efficiency between the heat collection device and the water tank 200 can also be improved.

[0118] Combination Figure 4 As shown, in some embodiments, the water tank 200 and the heat absorption plate 110 at least partially overlap in the horizontal direction.

[0119] The horizontally overlapping design of the water tank 200 and the heat collection device can effectively reduce the height of the water heater.

[0120] Lowering the overall height of the water heater reduces its vertical space requirements, facilitating flexible installation and convenient maintenance. Simultaneously, a lower height also means a lower center of gravity, improving stability and enhancing resistance to wind and snow loads.

[0121] Furthermore, the water tank 200 does not need to extend completely beyond the plane area where the solar collector is located, thus improving the compactness of the water heater and reducing its horizontal footprint. This reduced footprint allows the water heater to adapt to diverse installation environments and space constraints, improving the ease of installation and maintenance.

[0122] In some embodiments, the heat absorber plate 110 has a first surface and a second surface disposed opposite to each other, the first surface of the heat absorber plate 110 is used to absorb heat energy; the water tank 200 faces the second surface of the heat absorber plate 110.

[0123] By arranging the water tank 200 close to the second surface of the heat absorber plate 110, the path of heat energy from the heat absorber plate 110 to the water tank 200 can be shortened, thereby reducing heat loss and improving heating efficiency.

[0124] Furthermore, since the water tank 200 is close to the second surface of the heat absorption plate 110, the position of the water tank 200 is lowered, which helps to reduce the overall height of the water heater, improves the structural stability of the water heater, increases its resistance to wind and snow loads, and can adapt to diverse installation environments, improving the convenience of installation and maintenance.

[0125] Furthermore, the water tank 200 is located near the second surface of the heat absorber plate 110, that is, the water tank 200 is located below the heat collection device. This can prevent the water tank 200 from blocking the heat absorber plate 110, so that the heat absorber plate 110 can be fully exposed to sunlight and maximize the solar heat energy capture efficiency.

[0126] Furthermore, since the water tank 200 is close to the second surface of the heat absorber plate 110, at least part of the water tank 200 will be shielded by the heat absorber plate 110. The heat absorber plate 110 can be used to protect the water tank 200 from the direct impact of the external environment, such as wind and snow, thereby improving the overall durability of the water heater.

[0127] In some embodiments, the top height of the water tank 200 is lower than the top height of the heat collection device; the bottom height of the water tank 200 is higher than the bottom height of the heat collection device.

[0128] By limiting the height of the water tank 200, it is ensured that the water tank 200 does not completely extend beyond the plane area where the heat collection device is located, which helps to reduce the horizontal footprint of the water heater and improves the flexibility and adaptability of installation.

[0129] Specifically, by optimizing the relative positions of the water tank 200 and the heat collection device, the water heater can better adapt to different installation environments and user needs, providing an efficient and reliable hot water solution.

[0130] In some embodiments, the height of the liquid inlet 620 is not higher than the height of the heat cycle outlet 220; the height of the liquid outlet 610 is not higher than the height of the heat cycle inlet 210.

[0131] This configuration ensures that the liquid circulation path between the heat exchanger 600 and the water tank 200 remains unobstructed, preventing liquid stagnation or backflow in the circulation path.

[0132] In practice, the hot liquid in the containment cavity 601 will continue to flow upward after reaching the outlet 610 and enter the water tank 200 through the heat circulation inlet 210 to heat the water in the water tank 200.

[0133] The original, unheated or cooled liquid inside the water tank 200 is at a low temperature. It will flow out of the water tank 200 through the heat circulation outlet 220 and continue to flow downwards. It will enter the containment cavity 601 from the liquid inlet end 620 of the heat exchanger 600 and then exchange heat with the heat collection device.

[0134] In this way, a stable fluid circulation is achieved between the water tank 200 and the heat exchanger 600, ensuring the effective transfer of heat energy between the water tank 200 and the heat exchanger 600.

[0135] The outlet 610 of the heat exchanger 600 can be connected to the heat circulation inlet 210 via a hot water pipe 400; the heat circulation outlet 220 can be connected to the inlet 620 of the heat exchanger 600 via a cold water pipe 500.

[0136] Combination Figure 3 As shown, when the position of the water tank 200 is lowered, the position of the heat exchanger 600 can be lowered accordingly. While ensuring that the heat circulation inlet 210 and heat circulation outlet 220 of the water tank 200 are always higher than the heat exchanger 600, the length of the hot water pipe 400 and the cold water pipe 500 can also be reduced, promoting efficient liquid circulation.

[0137] This design facilitates the use of the principle of heat convection, allowing hot water to rise naturally and flow into the water tank 200, while cold water flows back from the water tank 200 to the heat exchanger 600 for heating.

[0138] Specifically, the water heater provided in this application embodiment optimizes the flow path of the fluid by controlling the relative positions of the liquid outlet 610 and the heat circulation inlet 210, as well as the relative positions of the liquid inlet 620 and the heat circulation outlet 220, utilizing height differences and fluid dynamic characteristics. This enables the water heater to achieve efficient heat transfer and water heating without additional power.

[0139] Combination Figure 4 As shown, in some embodiments, the water tank 200 is provided with a tank liner 230, which is used to hold at least hot water.

[0140] By setting a tank liner 230 in the water tank 200, a dedicated internal space for containing hot water is provided, which can effectively isolate hot water from the external environment, allowing hot water to be stored and kept warm more effectively, reducing heat loss.

[0141] In some embodiments, the tank liner 230 is connected to the liquid outlet 610 through the heat circulation inlet 210, and the tank liner 230 is connected to the liquid inlet 620 through the heat circulation outlet 220.

[0142] Understandably, the circulating liquid in the accommodating cavity 601 is water.

[0143] The tank 230 and the heat exchanger 600 can form a closed loop system. Water heated by the heat collection device in the receiving cavity 601 can flow directly into the tank 230 for storage, while unheated or uncooled water in the tank 230 can return to the receiving cavity 601 for reheating, ensuring continuous operation and efficient heating of the water heater.

[0144] In some embodiments, both the liquid inlet 620 and the liquid outlet 610 of the heat exchanger 600 may be equipped with antifreeze valves.

[0145] By installing an antifreeze valve, the water in the hot water pipe 400 and cold water pipe 500 can be prevented from freezing in cold weather, ensuring that the heat exchanger 600 can still work normally in low-temperature environments and maintaining the continuity and reliability of the water heater.

[0146] Combination Figure 5 As shown, in some embodiments, the water tank 200 is provided with a tank liner 230 and a heat exchange box 240; the tank liner 230 is used to contain at least hot water, and the heat exchange box 240 is used to contain at least refrigerant.

[0147] Understandably, the inner tank 230 can effectively store and keep hot water warm. The heat exchanger 240 can not only effectively isolate hot water and refrigerant, but also provide a dedicated space for heat exchange of the refrigerant.

[0148] In some embodiments, the heat exchange box 240 is connected to the liquid outlet 610 through the heat circulation inlet 210, and the heat exchange box 240 is connected to the liquid inlet 620 through the heat circulation outlet 220.

[0149] The outlet end 610 of the heat exchanger 600 can be connected to the heat circulation inlet 210 of the heat exchange box 240 through the hot water pipe 400. The heated refrigerant can flow into the heat exchange box 240 through the hot water pipe 400 to exchange heat with the water in the box liner 230.

[0150] The heat circulation outlet 220 of the heat exchanger 240 can be connected to the liquid inlet 620 of the heat exchanger 600 via a cold water pipe 500, thus forming a closed-loop circulation system between the heat exchanger 240 and the heat exchanger 600. The cooled refrigerant can return to the receiving cavity 601 via the cold water pipe 500 for reheating, ensuring continuous operation of the heat exchange process.

[0151] For example, the heat exchange box 240 may be arranged around the outer periphery of the box liner 230.

[0152] This configuration increases the heat exchange area between the heat exchange box 240 and the inner tank 230, making it easier for the heat obtained in the heat exchange box 240 to be transferred to the water tank 200 more quickly, so as to rapidly heat the water in the water tank 200.

[0153] For example, the refrigerant can be antifreeze. Antifreeze can effectively prevent freezing in low-temperature environments, ensuring that the water heater can still operate normally in cold climates and enhancing the water heater's adaptability to diverse environments.

[0154] Combination Figure 4 and Figure 5 As shown, in some embodiments, the water heater also includes a support base 300; a first end of the support base 300 is used to fix it to the mounting base 90, and a second end of the support base 300 is connected to the water tank 200.

[0155] Understandably, the first end of the support base 300 is fixed on the mounting base 90, and the second end of the support base 300 is connected to the water tank 200, which can form a stable support structure and reduce the tilting or movement of the water tank 200 due to external forces or environmental factors (such as wind and vibration).

[0156] In some embodiments, the support base 300 is provided with a plurality of pull rods 310, and one end of the pull rod 310 away from the support base 300 is connected to the heat collection device.

[0157] One end of the pull rod 310 is connected to the support base 300, and the other end is connected to the second surface of the heat absorption plate 110.

[0158] The tie rod 310 can provide support for the heat absorber plate 110, stabilize the installation position of the heat absorber plate 110, and ensure its stability at different angles and positions.

[0159] The support provided by the tie rod 310 reduces the shaking or deformation of the water heater under wind or other external forces, thus improving the stability and durability of the water heater.

[0160] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat collecting device, characterized by, The heat absorption plate (110), the heat collecting pipe (130) and the heat exchange member (600); The heat absorption plate (110) is used for at least acquiring solar heat energy; The heat exchange member (600) is used for at least communicating with a water tank (200), and the heat exchange member (600) is provided with a containing cavity (601) used for at least heat circulating with the water tank (200); The heat collecting pipe (130) is arranged on the heat absorption plate (110), and the heat collecting pipe (130) comprises an extension section (133) arranged in the containing cavity (601).

2. The thermal collector of claim 1, wherein The heat collecting pipe (130) comprises a connecting section (132) and a plurality of heat collecting sections (131); In the width direction of the heat absorption plate (110), the plurality of heat collecting sections (131) are arranged in parallel and connected in sequence at the head and tail of the plurality of heat collecting sections (131), so as to form a heat collecting section group; The first end of the connecting section (132) is connected with the liquid inlet of the heat collecting section group, and the second end of the connecting section (132) is connected with the liquid outlet of the heat collecting section group.

3. The thermal collector of claim 2, wherein The number of the extension sections (133) is plural, and the extension sections (133) are correspondingly arranged in the heat collecting sections (131); Between the liquid inlet end (620) of the heat exchange member (600) and the liquid outlet end (610) of the heat exchange member (600), the plurality of extension sections (133) are arranged in sequence and at intervals.

4. The thermal collector of claim 2, wherein The number of the extension sections (133) is plural, and the plurality of extension sections (133) are arranged in the connecting section (132); Between the liquid inlet end (620) of the heat exchange member (600) and the liquid outlet end (610) of the heat exchange member (600), the plurality of extension sections (133) are connected in sequence.

5. The thermal collector of claim 1, wherein The extension direction of the heat exchange member (600) and the width direction of the heat absorption plate (110) have an included angle, and the height of the liquid inlet end (620) of the heat exchange member (600) is lower than the height of the liquid outlet end (610) of the heat exchange member (600).

6. The thermal collector of claim 1, wherein The heat absorption plate (110) has a first surface and a second surface arranged oppositely; The first surface of the heat absorption plate (110) is used for absorbing heat energy, and the heat collecting pipe (130) is arranged on the second surface of the heat absorption plate (110).

7. A water heater, characterised by The water tank (200) and the heat collecting device according to any one of claims 1-6; The water tank (200) has a heat circulation inlet (210) and a heat circulation outlet (220), the heat exchange member (600) has a liquid outlet end (610) and a liquid inlet end (620), and the liquid outlet end (610) and the liquid inlet end (620) are in communication with the containing cavity (601); The heat circulation inlet (210) is in communication with the liquid outlet end (610), and the heat circulation outlet (220) is in communication with the liquid inlet end (620).

8. The water heater of claim 7, wherein, The water tank (200) and the heat absorption plate (110) at least partially overlap in the horizontal direction; The heat absorption plate (110) has a first surface and a second surface arranged oppositely, and the first surface of the heat absorption plate (110) is used for absorbing heat energy; And / or, the water tank (200) is towards the second surface of the heat absorption plate (110).

9. The water heater of claim 7, wherein, The top end height of the water tank (200) is lower than the top end height of the heat collecting device, and the bottom end height of the water tank (200) is higher than the bottom end height of the heat collecting device.

10. The water heater of claim 7, wherein, The height of the liquid inlet end (620) is not higher than the height of the heat cycle outlet (220), and the height of the liquid outlet end (610) is not higher than the height of the heat cycle inlet (210).

11. The water heater of claim 7, wherein, The water tank (200) is provided with a tank (230), and the tank (230) is at least used for containing hot water; The tank (230) is communicated with the liquid outlet end (610) through the heat cycle inlet (210), and the tank (230) is communicated with the liquid inlet end (620) through the heat cycle outlet (220).

12. The water heater of claim 7, wherein, The water tank (200) is provided with a tank (230) and a heat exchange tank (240); the tank (230) is at least used for containing hot water, and the heat exchange tank (240) is at least used for containing refrigerant; The heat exchange tank (240) is communicated with the liquid outlet end (610) through the heat cycle inlet (210), and the heat exchange tank (240) is communicated with the liquid inlet end (620) through the heat cycle outlet (220).

Images