Heating system and purifying and heating all-in-one machine
By designing a flared inlet pipe in the heating system, the problem of reduced pumping efficiency caused by air bubbles during the heating process of the drinking water equipment was solved, achieving a more efficient pumping process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-10
AI Technical Summary
Existing drinking water equipment with filtration and heating functions is prone to generating air bubbles during the heating process, which leads to reduced water pumping efficiency and air blockage, affecting the water output.
Design a heating system including a hot tank assembly and a water pump assembly. The water inlet pipe has an enlarged inner diameter near the outlet to form a flared structure, which utilizes the vertical upward movement of air bubbles to reduce the risk of air bubble accumulation in the pipe.
It effectively reduces the risk of air blockage, improves the pumping efficiency during the heating process, reduces damage to the water pump, and has a low processing cost.
Smart Images

Figure CN223985374U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drinking water device technical field, especially a kind of heating system and clean heat integrated machine. BACKGROUND
[0002] With the gradual improvement of people's living standards, the health consciousness is increasing, and the quality requirement of drinking water is more and more strict. Under such trend, drinking water equipment with the functions of effectively filtering impurities, significantly improving water quality and heating is gradually popular, becoming the common choice of many families, providing important protection for people's daily drinking water safety and health.
[0003] In the current drinking water equipment with filtering and heating functions, most products are equipped with water heating components to meet the user's demand for normal temperature water and quickly supply hot water, improve the convenience and satisfaction of users. However, when the heating module in the drinking water equipment boils the water, a large amount of bubbles will be generated, which can reduce the water output and cause air blockage during water pumping, affecting the water pumping efficiency. SUMMARY
[0004] The application provides a heating system and a clean heat integrated machine, which can improve the water pumping efficiency of the heating system during the provision of hot water by the clean heat integrated machine.
[0005] In the first aspect, the application provides a heating system, which comprises a hot tank assembly and a water pump assembly. The hot tank assembly comprises a tank body and a heating element. The tank body has a water outlet, and the water outlet is located at the lower part of the tank body. The heating element is installed on the tank body. The water pump assembly comprises a water pumping pump and a water inlet pipe. The water pumping pump is connected to the water outlet through the water inlet pipe. The water inlet pipe is connected to the water outlet. In the direction from the water pumping pump to the water outlet, the inner diameter of the water inlet pipe increases to form an expanding structure.
[0006] In some embodiments, at least a part of the water inlet pipe close to the water outlet has an upward extending trend, and the inner diameter of the water inlet pipe decreases from top to bottom.
[0007] In some embodiments, the water inlet pipe further comprises:
[0008] A first pipe section, one end of which is connected to the water outlet, and the inner diameter of which decreases from top to bottom;
[0009] An arc-shaped transition section, connected to one end of the first pipe section away from the water outlet; and
[0010] A second pipe section, connected to one end of the arc-shaped transition section away from the first pipe section, and the other end of the second pipe section is connected to the water pumping pump;
[0011] The center line of the second pipe section is arranged at an angle with the center line of the first pipe section, and the water pump has a water pump inlet connected with the second pipe section, the water pump inlet being horizontally or obliquely upwardly directed.
[0012] In some embodiments, the inner diameter of the arc-shaped transition section is arranged to be reduced in the direction in which the water outlet is closer to the water pump.
[0013] In some embodiments, the water pump comprises:
[0014] The water inlet portion extends outwardly from the main body of the water pump, the water inlet portion extending into the interior of the second pipe section, and the water pump inlet on the water inlet portion being located at the corner between the arc-shaped transition section and the second pipe section.
[0015] In some embodiments, the inner diameter of the water inlet portion is arranged to be reduced in the direction in which the water outlet is closer to the water pump.
[0016] In some embodiments, the first pipe section extends in the vertical direction, and the center line of the first pipe section is arranged perpendicularly to the center line of the second pipe section.
[0017] In some embodiments, the tank body comprises a tank bottom cover provided with the water outlet, and the hot tank assembly further comprises:
[0018] A connecting water pipe is connected to the tank bottom cover and communicates with the water outlet, the connecting water pipe extending in the vertical direction, and a water discharge end of the connecting water pipe being connected to the first pipe section.
[0019] In some embodiments, the connecting water pipe extends into the tank body, and in the height direction, the water inlet end of the connecting water pipe is higher than the tank bottom cover.
[0020] In some embodiments, the height difference between the water inlet end of the connecting water pipe and the tank bottom cover is H, and the H satisfies: 5mm≤H≤10mm.
[0021] In some embodiments, in the height direction, the heating element is arranged in the lower part of the tank body and close to the tank bottom cover.
[0022] The heating element is arranged around the outer periphery of the water inlet end of the connecting water pipe.
[0023] In a second aspect, the embodiments of the present application provide a net heat all-in-one machine, comprising:
[0024] A shell assembly;
[0025] The heating system described above is installed within the housing assembly; and
[0026] A filtration system is installed within the housing assembly and is connected to the heating system.
[0027] In some embodiments, the integrated air purifier and heater further includes a controller, a first temperature sensor, a second temperature sensor, and a faucet. The filtration system includes a booster pump, a filter element, and a purified water pipe connected to the outlet of the filter element. The purified water pipe and the outlet pipe connected to the water outlet are both connected to the faucet.
[0028] The first temperature sensor is used to detect the temperature inside the heating chamber, the second temperature sensor is used to detect the temperature of the pure water inside the purified water pipe, and the controller is used to receive the detection values from the first temperature sensor and the second temperature sensor, and control the operating power of the water pump and the booster pump to generate water at a set temperature at the faucet.
[0029] In this application, the tank has an outlet located at the bottom, and the inlet pipe is connected to the outlet. Since air bubbles in the water tend to rise vertically, this reduces the likelihood of air bubbles being drawn in during pump operation, lowering the risk of air blockage. Furthermore, the inner diameter of the inlet pipe increases towards the outlet, creating a flared structure. This allows air bubbles generated during heating to more easily utilize their upward movement to travel along the inlet pipe and exit through the outlet. This effectively reduces the possibility of air bubble accumulation in the pipe, significantly lowering the risk of pump failure due to air blockage. Understandably, air blockage not only reduces pumping efficiency but can also damage the pump, causing overheating and increased wear. This application, through the design of the inlet pipe's inner diameter, achieves a structure that not only does not add extra complexity during actual production and installation but also has lower processing costs, while effectively reducing the risk of air blockage. Attached Figure Description
[0030] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the integrated heat dissipation and cooling unit of this application;
[0032] Figure 2 This is a schematic diagram of the assembly structure of the outer shell and the middle shell of the integrated heat dissipation and cooling unit of this application;
[0033] Figure 3 This is a schematic diagram of the structure of the integrated air-purifier and heat-dissipating unit after removing the outer casing;
[0034] Figure 4 This is a schematic diagram of the assembly structure of the inner shell and heat insulation cover of the integrated heat dissipation and cooling unit in this application;
[0035] Figure 5 This is a water flow diagram of the integrated water purification and heating unit of this application;
[0036] Figure 6 This is a schematic diagram of the middle shell of the integrated heat dissipation and cooling unit of this application;
[0037] Figure 7 This is a structural diagram of the integrated air-purifier and heat-dissipating unit with the side panels removed, as per this application.
[0038] Figure 8 This is a schematic diagram of the heating system of this application;
[0039] Figure 9 This is a front view schematic diagram of the heating system of this application;
[0040] Figure 10 for Figure 9 Schematic diagram of the cross section at point AA;
[0041] Figure 11 for Figure 10 Enlarged diagram of point B in the middle.
[0042] Explanation of icon numbers:
[0043] 1. Integrated heat purifier and water heater; 10. Shell assembly; 10a. Cavity; 12. Middle shell; 121. Base plate; 122. Water channel plate support; 1221. Seat body; 1222. Limiting plate; 123. Filter support; 1231. Mounting cavity; 1232. Mounting port; 124. Enclosure; 126. Supporting component; 10A. Outer shell; 11. Panel; 13. Back plate; 14. Top plate; 15. Bottom plate; 16. Side plate; 10a. Cavity; 103. Heating tank cavity; 104. Filter element cavity; 20. Heating tank assembly; 21. Tank body; 21a. Heating cavity; 211. Tank body; 212. Tank top cover; 213. Tank bottom 1. Cover; 216. Outlet; 218. Connecting water pipe; 22. Heating element; 30. Water pump; 35. Water inlet; 351. Water pump inlet; 32. Water inlet pipe; 321. First pipe section; 322. Arc-shaped transition section; 323. Second pipe section; 50. Filtration system; 51. Primary filter element; 52. Secondary filter element; 53. Booster pump; 60. Water circuit board; 61. First water circuit board; 62. Second water circuit board; 63. Inlet valve; 64. Check valve; 65. Wastewater plug; 66. Make-up valve; 70. Heat insulation component; 71. Heat insulation cover; 80. Control board; 90A. Leak probe; 2. Faucet; 3. Pipeline machine.
[0044] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0045] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0046] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.
[0047] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0048] 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. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0049] Please see Figures 1 to 3 This application proposes an integrated air purifier and heat pump 1. In the embodiments of this application, the integrated air purifier and heat pump 1 includes a housing assembly 10, a water circuit board 60, a filtration system 50, and a heating system. The heating system includes a heating tank assembly 20 and a water pump assembly, the water pump assembly including a water pump 30.
[0050] The housing assembly 10 serves as the external frame of the entire integrated air purifier and heater unit 1, and its overall outer contour is rectangular. This design makes it particularly suitable for installation in kitchen areas. Kitchens typically have regular cabinet space, and the rectangular integrated air purifier and heater unit 1 can be easily embedded under the cabinets or placed in a corner of the kitchen countertop, blending seamlessly with the overall kitchen environment.
[0051] The water channel plate 60 provides water flow channels so that the pure water filtered by the filtration system 50 can flow to the heating tank assembly 20 for heating. Simultaneously, the water channel plate 60 also discharges filtered wastewater. By placing the water channel plate 60 inside the housing assembly 10, the protective performance of the housing assembly 10 is fully utilized to protect the water channel plate 60. The water channel plate 60 can have multiple water flow channels, making installation more convenient and faster compared to traditional decentralized water pipe connections. Regarding the material of the water channel plate 60, a high-strength and corrosion-resistant composite material is selected. This material not only has excellent resistance to chemical corrosion, effectively resisting the corrosion of the water channel plate 60 by various acids and alkalis that may be present in the water, but its unique molecular structure also allows the water channel plate 60 to maintain structural integrity and dimensional stability even under long-term water pressure and temperature changes, thus ensuring smooth and unobstructed water flow.
[0052] Reference Figure 4In some embodiments, the water channel plate 60 includes a first water channel plate 61 and a second water channel plate 62 that are connected to each other. The filtration system 50 and the hot tank assembly 20 are located on opposite sides of the first water channel plate 61, and the second water channel plate 62 is set at an angle to the first water channel plate 61. Specifically, the second water channel plate 62 and the first water channel plate 61 can be set at a perpendicular 90-degree angle. This standardized 90-degree angle design facilitates mold development and standardization of production processes, reduces production costs and production cycles, and also makes it easier for maintenance personnel to quickly locate and replace water channel plate 60 components when equipment malfunctions, reducing maintenance time and costs. Of course, the angle between the first water channel plate 61 and the second water channel plate 62 can also be 70°, 80°, 100°, 110°, etc. The above-mentioned configuration optimizes the internal space utilization and performance of the housing component 10, allowing for flexible layout based on the actual internal space of the housing component 10. It effectively adapts to the installation positions of the filtration system 50 and the heating tank component 20, avoiding the space waste problem caused by the structural limitations of the traditional water circuit board 60. This makes the connection between the components more compact and efficient, reduces unnecessary pipe length and complexity, lowers water flow resistance, thereby improving water purification efficiency and water flow stability, reducing the risk of leakage, and ensuring the reliable operation of the integrated water purifier and heater 1.
[0053] The filtration system 50 is a key component of the integrated water purifier and heat exchanger 1. Located inside the housing assembly 10, it fully utilizes the protective properties of the housing to prevent dust, moisture, and other potential contaminants from interfering with the filtration process, thus ensuring the reliability and stability of the filtration effect. The filtration system 50 and the heating tank assembly 20 are connected via a water circuit board 60. The filtration system 50 includes a primary filter element 51, a secondary filter element 52, and a booster pump 53. The primary filter element 51 and the secondary filter element 52 are connected and communicate with each other via the water circuit board 60. The booster pump 53 is used to transport the liquid filtered by the primary filter element 51 to the secondary filter element 52 through the water circuit board 60. The primary filter element 51 can be PAC (Polyaluminium Chloride), serving as a primary filtration unit, mainly targeting and removing larger particulate impurities, suspended solids, some colloids, and some microorganisms in the water. The filter material used has a large pore size and surface area, which can efficiently capture these larger pollutants and prevent them from entering subsequent filtration stages, thereby protecting the secondary filter element 52 from excessive clogging and contamination and extending the service life of the entire filtration system 50. The booster pump 53 plays a crucial power role in the filtration system 50. Its main function is to provide sufficient pressure for the water filtration process, ensuring that the water, after preliminary filtration by the primary filter element 51, can enter the secondary filter element 52 at a stable and appropriate flow rate through the water channel plate 60 or water pipe for deep purification. The water, after preliminary filtration by the primary filter element 51, is transported to the secondary filter element 52 through the water channel plate 60 under the action of the booster pump 53. The secondary filter element 52 can be RO (Reverse Osmosis), a key step in achieving deep purification. It uses finer filter material, effectively removing residual microparticles, dissolved organic matter, heavy metal ions, bacteria, viruses, and other harmful substances from the water. These tiny pollutants often pose a potential threat to human health. Through the fine filtration of the secondary filter cartridge 52, safe, pure, and healthy drinking water can be provided to users.
[0054] The hot water tank assembly 20 is used to store and heat the filtered pure water so as to meet the user's hot water needs at any time, thereby improving the functionality and practicality of the equipment.
[0055] A water pump 30 is located inside the housing assembly 10 and connected to the water circuit board 60. The pump 30 draws hot water from the heating tank assembly 20 and discharges it through the water circuit board 60, enabling the integrated water purifier and heater 1 to provide efficient and stable water supply. This ensures users don't need to worry about insufficient water pressure or unstable water flow affecting their daily water use. The water circuit board 60 can also be equipped with an inlet valve 63, a check valve 64, a wastewater plug 65, and a water replenishment valve 66. The inlet valve 63 controls the flow of water into the filtration system 50 on the water circuit board 60. The check valve 64 is located between the filtration system 50 and the heating tank assembly 20 to prevent backflow of filtered water. (Refer to reference...) Figure 5 Thus, the water flow path of this application is as follows: Tap water first flows into the water circuit board 60 through the interface, and then passes through the primary filter element 51 for initial filtration. Subsequently, driven by the booster pump 53, the water flows through the secondary filter element 52 for secondary filtration. The wastewater after two stages of filtration is discharged through the wastewater plug 65, while the pure water is divided into two paths through the one-way valve 64. One path can be supplied to the external water supply unit 3, directly outputting room temperature water; the other path, after the water supply valve 66 is opened, flows to the heating tank assembly 20, and becomes hot water under the heating effect of the heating tank assembly 20. When the user turns on the faucet 2, the water pump 30 will start, drawing out the hot water from the heating tank assembly 20 for use. In addition, the exhaust pipe of the heating tank assembly 20 can be directly connected to the faucet 2 to ensure smooth and safe gas discharge.
[0056] However, due to the large number of components in the filtration system 50 and the lack of a systematic installation sequence, problems often arise during assembly, such as limited operating space, inaccurate component positioning, and difficulty in real-time debugging and testing. This results in low assembly efficiency and a low product qualification rate. To solve the above problems, the housing assembly 10 of this application includes a middle shell 12 and an outer shell 10A. The outer shell 10A is framed on the outer periphery of the middle shell 12, and the water channel plate 60, the filtration system 50, and the hot tank assembly 20 are all connected to the middle shell 12.
[0057] Based on the above embodiments, by adopting a housing assembly 10 including a middle shell 12 and an outer shell 10A, and connecting the water circuit board 60, the filtration system 50, and the heating tank assembly 20 to the middle shell 12, the assembly process and performance of the integrated air purifier and heat pump unit 1 are greatly optimized. In terms of assembly, the middle shell 12 provides a stable and relatively independent assembly platform for each component, solving the assembly difficulties caused by limited operating space. Workers can more conveniently and accurately position and install the filtration system 50 and the heating tank assembly 20, improving assembly efficiency and accuracy. Compared with direct assembly inside the outer shell 10A, operating on the middle shell 12 reduces the inconvenience caused by the shape and space limitations of the outer shell 10A.
[0058] Meanwhile, this connection method facilitates real-time debugging and testing of each component during assembly. Specifically, after the filtration system 50 and the heating tank assembly 20 are installed on the middle shell 12, preliminary debugging and testing of some functional modules on the middle shell 12 can be performed. This allows for timely identification and resolution of potential problems, reducing rework and maintenance workload, effectively improving product qualification rate, and lowering production costs. In contrast, if testing is only conducted after the outer shell 10A is sealed, any problems discovered would require disassembling the outer shell 10A for repair, increasing the difficulty and cost of maintenance. From a performance perspective, the stable assembly structure ensures the reliability of the connection between the water circuit board 60, the filtration system 50, and the heating tank assembly 20, ensuring stable water flow and effective heat utilization, improving the overall operational stability and reliability of the equipment, and thus providing users with a more stable and efficient integrated cooling and heating experience.
[0059] It should be noted that the outer shell 10A and the middle shell 12 are fixed together by screws or clips to ensure a tight fit, maintain the stability and protection of the overall structure, and protect the internal components from external interference. The outer shell 10A may include a front panel 11, a back panel 13, a top panel 14, side panels 16, and a bottom panel 15. The front panel 11 is located on the front of the integrated air purifier and heat pump unit 1 and includes an operating interface and indicator lights. The back panel 13 is located at the rear of the integrated air purifier and heat pump unit 1 and is tightly connected to the side panels 16 to enclose the rear of the unit. The top panel 14 is located on the top of the integrated air purifier and heat pump unit 1, and the side panels 16 surround the sides of the unit, seamlessly connecting with other panels. The bottom panel 15 bears the weight of the integrated air purifier and heat pump unit 1 and isolates it from the ground.
[0060] Combined with reference Figure 6 In some embodiments, the middle shell 12 includes a base plate 121, a water channel plate support 122, and a filter support 123. The base plate 121 includes a mounting surface and an abutment surface disposed opposite to each other. The abutment surface is fixed to the inner wall of the outer shell 10A, and the hot tank assembly 20 is connected to the mounting surface. The base plate 121, as a fundamental component, plays a crucial role with its oppositely disposed mounting surface and abutment surface. The abutment surface is tightly fixed to the inner wall of the outer shell 10A, forming a stable connection structure. This effectively enhances the pressure resistance of the entire shell assembly 10, allowing the integrated water purifier and heat pump 1 to better protect its internal components from damage when subjected to external pressure or impact, thereby extending the service life of the integrated water purifier and heat pump 1 and reducing the maintenance costs and replacement frequency incurred by users due to malfunctions of the integrated water purifier and heat pump 1. The hot tank assembly 20 can be fixed to the mounting surface by means of screws or clips.
[0061] The water circuit board support 122 is connected to the mounting surface, and the water circuit board 60 is connected to the water circuit board support 122. After being connected to the water circuit board support 122, the water circuit board 60 maintains a stable working state, preventing displacement or deformation due to its own weight or water flow impact. A stable water circuit board 60 ensures smooth internal flow, reduces water flow resistance, and improves water transmission efficiency, making the water purification process more efficient and faster, meeting users' needs for a stable water supply. Furthermore, precise support positioning helps improve the connection accuracy of the water circuit board 60 with other components, further reducing the risk of leakage and ensuring the sealing and reliability of the entire water purification system.
[0062] The filter support 123 is connected to the mounting surface and spaced apart from the water circuit board support 122. The filtration system 50 is connected to the filter support 123. This provides a dedicated installation location for the filtration system 50. After being connected to the filter support 123, the filtration system 50 can operate in a relatively stable and independent space, reducing interference from external factors on the filtration process and ensuring the stability and reliability of the filtration effect. At the same time, the spaced-out structure helps optimize the internal spatial layout of the equipment, making the connections between components more reasonable and compact, facilitating the installation, maintenance, and repair of the equipment. Maintenance personnel can more easily perform operations such as filter element replacement and cleaning on the filtration system 50, reducing maintenance difficulty and cost, and improving the maintainability of the equipment.
[0063] The aforementioned arrangement places the water circuit board 60, the filtration system 50, and the hot tank assembly 20 on one side of the mounting surface of the base plate 121. From the perspective of production and assembly convenience, concentrating these key components on the same side of the mounting surface of the base plate 121 allows workers to complete the installation of components such as the water circuit board 60, the filtration system 50, and the hot tank assembly 20 sequentially and orderly from a relatively fixed position and direction, eliminating the need for complex flipping operations. This significantly shortens assembly time, reduces manpower input, and improves production efficiency. This same-side layout also plays an important role in the overall stability and reliability of the equipment. Because the relative positions of components such as the water circuit board 60, the filtration system 50, and the hot tank assembly 20 are more compact and stable after installation, problems such as loose connections and displacement that may occur due to components being distributed on different sides are reduced.
[0064] Furthermore, the middle shell 12 also includes a enclosure 124, which is connected to the edge of the mounting surface. The water channel plate support 122, filter support 123, base plate 121, and several baffles enclose a cavity 10a, within which the heat tank assembly 20 and the water channel plate 60 are located. From the perspective of the overall equipment structure, the presence of the enclosure 124 further improves the structural integrity of the middle shell 12 and enhances the protection of the internal components. It effectively prevents external dust, moisture, and other possible impurities from entering the cavity 10a. The cavity 10a provides a relatively stable and independent working environment for the heat tank assembly 20 and the water channel plate 60. The space formed by the tightly enclosed components reduces interference from external factors on the heat tank assembly 20 and the water channel plate 60. In addition, when maintenance or repair is required, the presence of the cavity 10a allows maintenance personnel to more clearly locate and operate the heat tank assembly 20, the water channel plate 60, and their related components. Compared to open or loosely structured equipment, the enclosed cavity 10a reduces the difficulty of component location and troubleshooting, improves maintenance efficiency, and reduces maintenance costs and time.
[0065] Combined with reference Figure 3 , Figure 4 as well as Figure 7 In some embodiments, the integrated water purifier and heat pump 1 further includes a heat insulation component 70 disposed within the housing assembly 10, dividing the cavity 10a of the housing assembly 10 into a filter element cavity 104 and a heating tank cavity 103. The filtration system 50 is located within the filter element cavity 104, and the heating tank assembly 20 is located within the heating tank cavity 103. By setting the heat insulation component 70 to divide the cavity 10a of the housing assembly 10 into the filter element cavity 104 and the heating tank cavity 103, the large amount of heat generated by the heating tank assembly 20 during operation is effectively prevented from radiating to the filtration system 50. This avoids the problem of accelerated aging of the filter material and reduced filtration efficiency and accuracy caused by heat radiation, ensuring that the filtration system 50 can maintain high-efficiency filtration performance for a long time, thereby continuously and stably providing users with clean and safe drinking water. On the other hand, due to the heat insulation effect of the insulation component 70 on the hot water tank assembly 20, the temperature impact of heat on the room temperature water is reduced, allowing the room temperature water to be maintained within a suitable temperature range. This ensures that users' needs for the quality of room temperature water are met and avoids problems such as changes in water quality and taste caused by rising room temperature water. At the same time, it prevents deformation and damage to the internal sealing materials of the filtration system 50 due to high temperatures, as well as interference with sensitive electronic components or sensors. This reduces the probability of equipment leakage, improves the overall operational stability and safety of the equipment, lowers user operating costs and maintenance frequency, and provides users with a more reliable and convenient user experience.
[0066] Furthermore, the heat insulation component 70 includes a heat insulation cover 71, which is detachably connected to the middle shell 12 and together with the middle shell 12 forms the hot tank cavity 103. The heat insulation cover 71 can effectively reduce heat loss from the hot tank assembly 20 to the surrounding environment and improve heat utilization efficiency. Compared with traditional heat insulation materials applied to the hot tank assembly 20, the heat insulation cover 71 has better integrity and stability. Applying heat insulation materials may crack or peel off over time, thereby reducing the heat insulation effect. However, as an independent structural component, the heat insulation cover 71 can always maintain complete heat insulation performance, effectively blocking heat loss from the hot tank assembly 20 to the surrounding environment and improving heat utilization efficiency. At the same time, compared with some embedded heat insulation structures, the detachable nature of the heat insulation cover 71 provides great convenience for maintenance personnel. When the hot tank assembly 20 malfunctions and requires repair or replacement, the repair operation is often extremely complex, potentially requiring the removal of numerous surrounding components to access the hot tank assembly 20. However, the heat shield 71 can be easily removed from the inner shell 12, allowing direct access to the hot tank assembly 20. This eliminates the need for arduous searching and handling of faulty components within the complex heat insulation structure, significantly reducing repair and downtime, and improving equipment availability and maintenance efficiency. Furthermore, the heat insulation component 70 may also include an insulation layer attached within the inner shell 12 to further enhance the insulation effect.
[0067] Furthermore, the enclosure 124, base plate 121, filter support 123, and water channel plate support 122 are integrated into a single component. This integrated design greatly enhances the overall strength and rigidity of the inner shell 12. With no gaps or weak points between the components, the inner shell 12 can more stably withstand the weight of the internal water tank, water channel plate 60, and filter system 50, as well as external impacts and vibrations. This effectively prevents component deformation, displacement, or damage caused by long-term use or accidental collisions, ensuring the stable operation of the precision components inside the equipment, reducing the probability of equipment failure, and extending the equipment's service life.
[0068] Reference Figure 6 and Figure 7In some structural configurations, the filter support 123 and the water channel plate support 122 are arranged sequentially along the front-rear direction of the outer casing 10A, with the hot tank assembly 20 located on the side of the water channel plate support 122 away from the filter support 123. This arrangement of the filter support 123 away from the hot tank assembly 20 effectively reduces the high-temperature impact of the hot tank assembly 20 on the filtration system 50. Since the hot tank assembly 20 generates heat during operation, if it is too close to the filtration system 50, the high-temperature environment may negatively affect the performance of the filter material. By maintaining a certain distance between the filter support 123 and the hot tank assembly 20, the filtration system 50 can be kept in a relatively stable and suitable temperature environment, ensuring stable performance of the filter material, maintaining efficient filtration, extending the overall service life of the filtration system 50, reducing user operating and maintenance costs, and improving product reliability and durability.
[0069] Furthermore, the filter support 123 has an installation cavity 1231, and an installation port 1232 communicating with the installation cavity 1231 is opened on the side of the filter support 123 facing away from the water circuit board support 122. The installation port 1232 is used for the filter element of the filtration system 50 to pass through and be installed in the installation cavity 1231. It can be understood that when the filter element passes through the installation port 1232 and is fixed in the installation cavity 1231, the filter element and the filter support 123 form a tightly integrated whole structure. This can effectively prevent the filter element from being displaced, loosened or even damaged due to water flow impact, equipment vibration or other external factors, thereby ensuring the stability and reliability of the filtration system 50, so that the filtration process can be carried out continuously and efficiently. From the perspective of long-term use, the stable filter element installation method reduces the risk of filter media wear and leakage caused by frequent shaking or displacement of the filter element, extends the service life of the filter element, and reduces the frequency and cost of filter element replacement for users. Meanwhile, the stable filtration process ensures the stability of the purified water quality, providing a solid foundation for the stable operation of the subsequent water circuit board 60 and the entire integrated water purifier and heater 1. This reduces potential damage to other components of the equipment caused by water quality fluctuations, lowers the overall maintenance rate and cost, and improves the durability and performance stability of the equipment. Furthermore, the filter support 123 has a clearance hole at the end opposite to the mounting cavity 1231 of the mounting port 1232. This clearance hole allows the filter element to connect with the water circuit board 60, optimizing the connection structure between the filter element and the water circuit board 60. Compared to complex or indirect connection methods, this reduces potential points of failure such as loose connections and leaks, resulting in a tighter and more stable connection between the filter element and the water circuit board 60.
[0070] It should be noted that when the filtration system 50 includes a primary filter element 51 and a secondary filter element 52, the two corresponding mounting cavities 1231 on the filter support 123 further optimize the installation and management of the filter elements. This design allows filter elements with different functions to be installed and operate in their own independent and suitable spaces, avoiding potential mutual interference and influence between different filter elements, ensuring that each filter element can fully exert its due filtration efficiency, and improving the filtration accuracy and efficiency of the entire filtration system 50.
[0071] Furthermore, the water circuit board support 122 includes a base 1221 and a limiting plate 1222. The base 1221 is connected to the mounting surface, and the limiting plate 1222 is connected to the side of the base 1221 facing away from the mounting surface. The water circuit board 60 is detachably connected to the base 1221, and the surface of the water circuit board 60 facing the hot tank assembly 20 abuts against the limiting plate 1222. The detachable connection of the water circuit board 60 to the base 1221 greatly optimizes the equipment maintenance and repair process. When the water circuit board 60 becomes clogged, leaks, or experiences other malfunctions, maintenance personnel can quickly and easily remove it from the base 1221 for targeted inspection, cleaning, or component replacement without the need for complex disassembly of the entire equipment. This significantly shortens maintenance time and reduces downtime. Secondly, the presence of the limiting plate 1222 precisely controls the safe distance between the water circuit board 60 and the hot water tank assembly 20, preventing the water circuit board 60 from getting too close to the hot water tank assembly 20 after installation due to various factors. The effective constraint of the water circuit board 60 position by the limiting plate 1222 ensures that the room temperature water maintains a stable and suitable temperature in the water circuit, allowing the various physicochemical properties of the water to remain at normal levels. This ensures that subsequent filtration and purification processes can proceed according to the expected standards and effects, improving the quality and stability of the purified water.
[0072] Reference Figure 3 and Figure 4 Optionally, the middle shell 12 also includes a support member 126, which is connected to the filter support 123 and the enclosure 124. The integrated heat and water purifier 1 also includes a control board 80, which is fixed to the side of the support member 126 away from the mounting surface and is electrically connected to the heat tank assembly 20. From the perspective of the overall layout and stability of the equipment, the support member 126, as a key component connecting the filter support 123 and the enclosure 124, enhances the integrity and rigidity of the internal structure of the middle shell 12. It can effectively distribute and bear various stresses generated during equipment operation. Whether the force is caused by water flow impact, thermal expansion and contraction, or external vibration, it can be reasonably distributed and buffered through the support member 126, thereby ensuring the relative position of the filter support 123, the enclosure 124, and other internal components remains stable.
[0073] Regarding the operating environment and safety of the control board 80, fixing it to the side of the support member 126 away from the mounting surface and electrically connecting it to the hot water tank assembly 20 offers significant advantages. Firstly, this location is away from potential water sources and humid environments, reducing the risk of short circuits, damage, or malfunction of the control board 80 due to moisture corrosion. This ensures the stable and reliable electrical performance of the control board 80, guaranteeing its accurate monitoring and control of the heating process, temperature regulation, and other related functions of the hot water tank assembly 20. Secondly, the close electrical connection with the hot water tank assembly 20 allows the control board 80 to obtain real-time and accurate information about the working status of the hot water tank assembly 20, making timely adjustments and feedback. This optimizes the heating efficiency and energy utilization of the hot water tank assembly 20, preventing overheating or underheating, ensuring users can always obtain hot water at a suitable temperature while saving energy consumption. From the perspective of equipment maintenance and upgrade convenience, this structural design provides great convenience for subsequent operations. When the control panel 80 needs to be inspected, repaired, or upgraded, maintenance personnel can reach the position of the control panel 80 on the support member 126 relatively easily through a reasonable disassembly path, without having to perform large-scale disassembly and complex operations on the entire equipment, saving maintenance time and labor costs, and improving the maintainability and upgradeability of the equipment.
[0074] Furthermore, the integrated water purifier and heating unit 1 also includes a leak probe 90A, which is connected to the support member 126 and abuts against the bottom surface of the outer casing 10A in the height direction. In terms of the accuracy and timeliness of leak detection, the leak probe 90A's position allows for efficient monitoring of potential leaks at the bottom of the integrated water purifier and heating unit 1. Since water tends to accumulate at the bottom of the device due to gravity, the leak probe 90A, directly abutting the bottom surface of the outer casing 10A, can quickly detect even the slightest leak and transmit the signal to the control system, triggering corresponding alarm mechanisms or taking emergency protective measures, such as cutting off the power or stopping the water circuit. This accurate and rapid leak detection capability greatly reduces the risk of short circuits, electrical failures, and damage to the surrounding environment caused by undetected leaks in the integrated water purifier and heating unit 1, effectively protecting the internal precision components of the integrated water purifier and heating unit 1 and the user's safety.
[0075] The following is in conjunction with the appendix Figures 8 to 11 The heating system is described in detail.
[0076] The heating system includes a heating tank assembly 20 and a water pump assembly. The heating tank assembly 20 includes a tank body 21 and a heating element 22. The tank body 21 has a heating chamber 21a, and the heating element 22 is installed inside the heating chamber 21a. The tank body 21 has a water outlet 216 communicating with the heating chamber 21a, and the water outlet 216 is located at the lower part of the tank body 21. The tank body 21 may include a tank body 211, a top cover 212, and a bottom cover 213. The tank body 211 has a cylindrical structure. The top cover 212 is located at the top of the tank body 211, and the bottom cover 213 is located at the bottom of the tank body 211. The three parts cooperate to form the heating chamber 21a. The water outlet 216 may be located on the bottom cover 213, or it may be located on the tank body 211 at a lower position. The water pump assembly includes a water pump 30 and an inlet pipe 32. The water pump 30 is connected to the outlet 216 through the inlet pipe 32. The inlet pipe 32 is connected to the outlet 216. In the direction from the water pump 30 to the outlet 216, the inner diameter of the inlet pipe 32 is increased to form a flared structure.
[0077] Specifically, the outlet 216 is located at the lower part of the tank 21, and the inlet pipe 32 is connected to the outlet 216. Since air bubbles in the water tend to rise vertically, this reduces the possibility of air bubbles being drawn into the pump 30 during operation, thus lowering the risk of air blockage. Furthermore, the inner diameter of the inlet pipe 32 increases towards the outlet 216, creating a flared structure. This allows air bubbles generated during heating to more easily utilize their vertical upward movement to escape along the inlet pipe 32 and through the outlet 216, effectively reducing the possibility of air bubble accumulation in the pipe and significantly lowering the risk of pump 30 failure due to air blockage. Understandably, air blockage not only reduces pumping efficiency but can also damage the pump 30, such as causing overheating and increased wear. This application designs the inner diameter of the inlet pipe 32 in a way that not only avoids adding extra complexity during actual production and installation but also reduces processing costs while effectively lowering the risk of air blockage.
[0078] When the inlet pipe 32 is connected to the tank bottom cover 213, the portion of the inlet pipe 32 closest to the outlet 216 extends upwards, and its inner diameter decreases from top to bottom. This allows the air bubbles to rise unimpeded under the influence of lift, until they are discharged from the inlet pipe 32. When the inlet pipe 32 is connected to the tank body 211, it is understandable that the buoyancy of the air bubbles during their vertical ascent is vertically upwards. When the air bubbles are blocked by the upper wall of the inlet pipe 32, because the inlet pipe 32 has a flared structure and its upper wall is inclined upwards and connects to the outlet 216, the upward buoyancy of the air bubbles will generate a component inclined towards the outlet 216 during force analysis. This allows the air bubbles to be discharged more easily along the inlet pipe 32 through the outlet 216, rather than easily entering the water pump 30.
[0079] Please see Figure 11 In some embodiments, the inlet pipe 32 includes a first pipe section 321, a second pipe section 323 and an arc-shaped transition section 322. The first pipe section 321 is connected to the outlet 216 and extends upward, and the inner diameter of the first pipe section 321 decreases from top to bottom. One end of the second pipe segment 323 is connected to the end of the arc-shaped transition segment 322 away from the first pipe segment 321, and the other end of the second pipe segment 323 is connected to the water pump 30. The opposite sides of the arc-shaped transition segment 322 are respectively connected to the first pipe segment 321 and the second pipe segment 323. The centerline of the arc-shaped transition segment 322 is arc-shaped, and the centerline of the second pipe segment 323 is at an angle to the centerline of the first pipe segment 321. The centerline of the first pipe segment 321 can extend vertically or be at an angle to the vertical direction, that is, the first pipe segment 321 is slightly inclined. For example, the angle between the centerline of the first pipe segment 321 and the vertical direction is 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. The centerline of the second pipe segment 323 can extend horizontally or be at an angle to the horizontal direction.
[0080] Specifically, to adapt to the installation environment or space, the water pump 30 needs to be placed horizontally or slightly tilted. In this case, the inlet pipe 32 may also include an arc-shaped transition section 322 and a second pipe section 323. The centerline of the second pipe section 323 is set at an angle to the centerline of the first pipe section 321. The arc-shaped transition section 322 is designed to allow for a smooth transition of water flow between the two pipe sections. In the direction of water flow, the inner diameter of the arc-shaped transition section 322 is reduced. That is, the inner diameter of the arc-shaped transition section 322 is reduced in the direction of the outlet 216 near the water pump 30. This creates a guiding surface on the inner surface of the arc-shaped transition section 322, allowing air bubbles to rise along its inner surface, reducing the risk of air blockage. The water pump inlet 351, which connects the water pump 30 to the second pipe section 323, is oriented horizontally or tilted upwards. In other words, the water pump inlet 351 will not face downwards, reducing the risk of air bubbles entering the water pump 30 at the inlet 351.
[0081] In some embodiments, the inlet pipe 32 can be a straight pipe, that is, the inlet pipe 32 may only include the first pipe section 321. The straight pipe can extend vertically, so that the air bubbles inside the straight pipe will not encounter resistance during their ascent. Of course, the straight pipe can also be slightly inclined, for example, the angle between the straight pipe and the vertical direction is 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. Under the action of buoyancy, the air bubbles will float back into the hot tank along the wall of the straight pipe, which can reduce or avoid the probability of air bubbles entering the water pump 30, thereby reducing the flow rate of the water pump 2.
[0082] Please see Figure 11 In some embodiments, the water pump 30 includes a water inlet 35 extending outward from the main body of the water pump 30 and having a water pump inlet 351. The water inlet 35 extends into the interior of the second pipe section 323, and the water pump inlet 351 on the water inlet 35 is located at the corner between the arc-shaped transition section 322 and the second pipe section 323, where air bubbles are more likely to rise. Thus, the water pump inlet 351 can be as close as possible to the first pipe section 321 and the arc-shaped transition section 322. Understandably, to accommodate the installation space within the housing, some water pumps 30 need to be placed relatively horizontally or slightly tilted. Air bubbles in the first pipe section 321 and the arc-shaped transition section 322 have no obstruction above them and can rise directly. Inserting the water inlet 35 into the second pipe section 323 can prevent gas from accumulating inside the second pipe section 323, reducing the risk of air blockage. The second pipe section 323 is used to connect and fix to the water inlet 35 of the water pump 30. Its inner diameter can remain unchanged or be set to adapt to the outer contour of the water inlet 35. Thus, the inner diameter of the water inlet pipe 32 of this application can be set such that the inner diameter of the part of the pipe section near the water outlet 216 increases in the direction from the water pump 30 to the water outlet 216, while the inner diameter of the part of the pipe section installed with the water inlet 35 can remain unchanged.
[0083] Optionally, the first pipe segment 321 extends vertically, and the centerline of the first pipe segment 321 is perpendicular to the centerline of the second pipe segment 323. This accommodates the installation requirement of the water pump 30 being installed horizontally.
[0084] Please see Figure 11 Optionally, the inner diameter of the water inlet 35 is reduced in the direction of the outlet 216 near the water pump 30. This allows the inner diameter of the water inlet 35 to form a guide surface that gradually slopes upward from the inside of the water inlet 35 to the outside, preventing air bubbles from accumulating inside the water inlet 35.
[0085] Please see Figure 11In some embodiments, the tank bottom cover 213 is provided with a water outlet 216, and the hot tank assembly 20 also includes a connecting water pipe 218. The connecting water pipe 218 is connected to the tank bottom cover 213 and communicates with the water outlet 216. The connecting water pipe 218 extends vertically, and its drain end is connected to the first pipe segment 321. By connecting the connecting water pipe 218 to the water outlet 216 of the tank bottom cover 213 and extending it vertically upwards to finally connect to the first pipe segment 321, the connection process between the water inlet pipe 32 and the tank body 21 is simplified. Moreover, the water outlet 216 is directly provided on the tank bottom cover 213. Compared with the form of opening the water outlet 216 on the side or top of the tank body 21, providing the water outlet 216 on the tank bottom cover 213 makes the processing and assembly operations easier.
[0086] Please see Figure 10 and Figure 11 In some embodiments, the connecting water pipe 218 extends into the tank body 21, and in the height direction, the inlet end of the connecting water pipe 218 is higher than the bottom cover 213. In this example, the outlet 216 provided on the bottom cover 213 is used to install the connecting water pipe 218. The opening of the connecting water pipe 218 extending into the heating chamber 21a inside the tank body 21 is the outlet 216 of the hot tank assembly 20. Since the inlet end of the connecting water pipe 218 is higher than the bottom cover 213, the heating element 22 is generally located in the middle of the tank body 21, and the bottom cover 213 is far away from the heating element 22. This can easily cause water temperature stratification, that is, the water temperature near the bottom cover 213 will be relatively lower. In this application, the inlet end of the connecting water pipe 218 is higher than the bottom cover 213, so that the inlet end of the connecting water pipe 218 is relatively close to the heating element 22, thereby enabling the direct acquisition of water with a higher temperature that is more affected by the heating element 22. In this way, even if the water temperature near the bottom cover 213 is relatively low, it will not affect the temperature of the water taken out through the connecting water pipe 218.
[0087] In some embodiments, the height difference between the water inlet of the connecting water pipe 218 and the bottom cover 213 is H, where H satisfies: 5mm ≤ H ≤ 10mm. This allows the water inlet of the connecting water pipe 218 to be closer to the heating element 22, thereby ensuring that the water pump 30 draws water at a higher temperature, thus increasing the temperature of the first cup of water taken by the user. Furthermore, this allows the user to take as much hot water as possible from the heating chamber 21a, improving the utilization rate of the hot water in the heating chamber 21a.
[0088] If H < 5mm, the water inlet of the water pipe 218 will be far from the heating element 22, resulting in a lower temperature of the water pumped by the water pump 30, and thus a lower temperature of the first cup of water taken by the user.
[0089] If H > 10mm, the inlet of the water pipe 218 will be too high, resulting in a lot of hot water remaining in the lower part of the heating chamber 21a after the user has taken all the hot water from the upper part of the tank 21. This leads to a low utilization rate of the hot water in the heating chamber 21a and a waste of resources.
[0090] Please see Figure 10 Furthermore, in the vertical direction, the heating element 22 is located at the lower part of the tank body 21 and is positioned near the bottom cover 213; wherein, the heating element 22 is arranged around the outer periphery of the water inlet end of the connecting water pipe 218. The heating element 22, located at the lower part of the tank body 21 and near the bottom cover 213, can directly heat the bottom of the water inside the tank body 21. Since heat is typically transferred from bottom to top, this arrangement can more effectively increase the overall water temperature while ensuring uniform heating of the water.
[0091] Furthermore, in some embodiments, the integrated water purifier and heater 1 also includes a controller, a first temperature sensor, and a second temperature sensor. The filtration system 50 includes a purified water pipe connecting to the outlet of the filter element. Both the purified water pipe and the outlet pipe connecting to the outlet 216 of the tank 21 are connected to the faucet 2. The first temperature sensor is used to detect the temperature inside the heating chamber 21a, and the second temperature sensor is used to detect the temperature in the pure water pipeline within the filtration system 50. The controller receives the detection values from the first and second temperature sensors and controls the operating power of the water pump 30 and the booster pump 53 to produce water at a set temperature at the faucet 2. Through the coordinated operation of the first and second temperature sensors, the controller can accurately adjust the water temperature inside the heating chamber 21a and the mixing ratio of hot and cold water, ensuring the stability and accuracy of the water temperature at the faucet 2, avoiding problems of excessively high or low water temperatures, and improving the safety and comfort of use. In addition, the controller dynamically adjusts the operating power of the water pump 30 and the booster pump 5, optimizing energy consumption according to actual water demand, reducing unnecessary energy waste, and thus improving the system's energy efficiency and economy.
[0092] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0093] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heating system, characterized in that, The application relates to a heating system. The heating system comprises: a hot tank assembly, which comprises a tank body and a heating element, the tank body is provided with a water outlet, the water outlet is located at the lower part of the tank body, and the heating element is installed on the tank body; and a water pump assembly, which comprises a water pump and a water inlet pipe, the water pump is communicated with the water outlet through the water inlet pipe; 2. The heating system of claim 1, wherein, wherein the water inlet pipe is connected to the water outlet, the inner diameter of the water inlet pipe is increased in the direction from the water outlet to the water pump, and the water inlet pipe is formed in a flared structure.
3. The heating system of claim 2, wherein, The part of the water inlet pipe close to the water outlet has an upward extending tendency, and the inner diameter of the water inlet pipe is gradually reduced from top to bottom. The water inlet pipe comprises: a first pipe section, one end of which is connected to the water outlet, and the inner diameter of the first pipe section is gradually reduced from top to bottom; an arc-shaped transition section, which is connected to the end of the first pipe section away from the water outlet; and a second pipe section, which is connected to the end of the arc-shaped transition section away from the first pipe section, and the other end of the second pipe section is communicated with the water pump; 4. The heating system of claim 3, wherein, wherein the center line of the arc-shaped transition section is arranged in an arc shape, the center line of the second pipe section is arranged at an angle with the center line of the first pipe section, and the water pump is provided with a water pump inlet connected to the second pipe section, the water pump inlet is horizontally or obliquely upward.
5. The heating system of claim 3, wherein, The inner diameter of the arc-shaped transition section is gradually reduced in the direction from the water outlet to the water pump. The water pump comprises:
6. The heating system of claim 5, wherein, a water inlet part, which is provided with the water pump inlet, the water inlet part extends outward from the main body of the water pump, the water inlet part extends into the interior of the second pipe section, and the water pump inlet on the water inlet part is located at the corner between the arc-shaped transition section and the second pipe section.
7. The heating system of claim 3, wherein, The inner diameter of the water inlet part is gradually reduced in the direction from the water outlet to the water pump.
8. A heating system as claimed in any one of claims 3 to 7, characterised in that, The first pipe section extends in the vertical direction, and the center line of the first pipe section is perpendicular to the center line of the second pipe section. The tank body is provided with a tank bottom cover, the tank bottom cover is provided with the water outlet, and the hot tank assembly further comprises:
9. The heating system of claim 8, wherein, a connecting water pipe, which is connected to the tank bottom cover and communicated with the water outlet, the connecting water pipe extends in the vertical direction, and the water discharge end of the connecting water pipe is connected to the first pipe section.
10. The heating system of claim 9, wherein, The connecting water pipe extends into the tank body, and the water inlet end of the connecting water pipe is higher than the tank bottom cover in the height direction.
11. The heating system of claim 8, wherein, The height difference between the water inlet end of the connecting water pipe and the tank bottom cover is H, and the H satisfies 5mm<=H<=10mm. The heating element is located at the lower part of the tank body and close to the tank bottom cover in the height direction.
12. A heat recovery all-in-one machine, characterized by The heating element is arranged around the outer periphery of the water inlet end of the connecting water pipe. The application further relates to a heating system. The heating system comprises: a shell assembly; the heating system as claimed in any one of claims 1 to 11, which is installed in the shell assembly; and a filtering system, which is installed in the shell assembly and communicated with the heating system.
13. The heat-only integrated machine of claim 12 wherein, The net heat all-in-one machine further comprises a controller, a first temperature sensor, a second temperature sensor and a faucet, the filtering system comprises a booster pump, a filter element and a purified water pipe connected to an outlet of the filter element, and the purified water pipe and a water outlet pipe communicating with the water outlet are both connected to the faucet; The first temperature sensor is configured to detect the temperature in the tank body, the second temperature sensor is configured to detect the temperature of the purified water in the purified water pipe, and the controller is configured to receive the detection values of the first temperature sensor and the second temperature sensor and control the operating power of the water pump and the booster pump to form water at a set temperature value at the faucet.