Heat exchange assembly and water treatment equipment

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a heat exchange assembly and water treatment equipment. The heat exchange assembly comprises a heat exchange piece and a capillary tube; the heat exchange piece is provided with a heating flow channel, the heat exchange piece is provided with a water inlet pipe at an input port of the heating flow channel, and the water outlet end of the water inlet pipe communicates with the heating flow channel; a gas inlet of the capillary tube is communicated with the heating flow channel, and the capillary tube is used for discharging gas in the heating flow channel and limiting water flow; the inner diameter of the capillary tube is smaller than that of the water inlet pipe, and the height of the air inlet is not smaller than that of the water outlet end. In the heat exchange assembly, the air inlet of the capillary tube is communicated with the heating flow channel, and the inner diameter of the air inlet is smaller than that of the water inlet pipe, so that air in the heating flow channel is preferentially discharged through the capillary tube under the pressure effect, and when water flow reaches the capillary tube, flow resistance is formed due to the small inner diameter of the capillary tube, and water flow is effectively limited to pass. Therefore, a large amount of water leakage is prevented while efficient exhaust is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment equipment, and particularly relates to a heat exchange assembly and water treatment equipment. BACKGROUND

[0002] In the existing water treatment equipment, such as a direct drinking machine, a heat exchanger is usually arranged to improve the heating efficiency. The heat exchange member preheats or heats the water flow passing through the internal flow channel by heat exchange with the heating medium.

[0003] However, in the actual operation process, the exhaust effect of the heat exchange member is usually limited, and gas is prone to accumulate in the flow channel. This phenomenon is more obvious when the equipment is started for the first time or restarted after a long period of inactivity, and the exhaust effect is poor. This phenomenon hinders the normal passage of the water flow, causes the water outlet to be delayed, the water flow to be unstable, and even causes the risk of dry burning during the start-up stage of the equipment, thereby affecting the heat exchange efficiency and the water outlet stability. UTILITY MODEL CONTENT

[0004] Therefore, the present application provides a heat exchange assembly and water treatment equipment to solve the problem of poor exhaust effect of the conventional water treatment equipment.

[0005] The first aspect of the present application provides a heat exchange assembly, comprising:

[0006] a heat exchange member provided with a heating flow channel, and the heat exchange member is provided with a water inlet pipe at the input port of the heating flow channel, and the water outlet end of the water inlet pipe is communicated with the heating flow channel; and

[0007] a capillary tube, the gas inlet of the capillary tube is communicated with the heating flow channel, and the capillary tube is used for exhausting the gas in the heating flow channel and limiting the water flow; wherein the inner diameter of the capillary tube is smaller than the inner diameter of the water inlet pipe, and the height of the gas inlet is not lower than the height of the water outlet end.

[0008] In a possible implementation manner, the gas inlet is located above the central axis of the water inlet pipe.

[0009] In a possible implementation manner, the inner diameter of the capillary tube is 0.5mm-2mm.

[0010] In a possible implementation manner, compared with the horizontal plane, the height of the water inlet pipe is not lower than the height of the output end of the heating flow channel.

[0011] The second aspect of the present application provides a water treatment equipment, comprising:

[0012] the heat exchange assembly as described in any one of the above; and

[0013] a heating assembly, which is thermally coupled to the heat exchange assembly and is used for heating the heat exchange member.

[0014] In a possible implementation, the heat exchange component further comprises a circulating flow channel arranged in parallel with the heating flow channel, and the heating assembly is in communication with the circulating flow channel, and is configured to heat the heat exchange medium and drive the heat exchange medium to flow along the circulating flow channel, and the heat exchange medium is configured to exchange heat with the water flow in the heating flow channel.

[0015] In a possible implementation, the heating assembly comprises a heating component configured to accommodate the heat exchange medium, and a circulating pump in communication with an output end of the heating component and an input end of the circulating flow channel respectively, and the heating component is in communication with an output end of the circulating flow channel.

[0016] In a possible implementation, the capillary tube is in communication with the heating component, and the heating component is provided with a pressure relief structure.

[0017] In a possible implementation, the water treatment device further comprises a water channel structure provided with an output channel, and the capillary tube is connected to the output channel at an end away from the heat exchange component.

[0018] The embodiments of the present application have the following beneficial effects:

[0019] In the heat exchange component of the present embodiment, the air inlet of the capillary tube is in communication with the heating flow channel and has an inner diameter smaller than that of the water inlet pipe, so that the gas in the heating flow channel is preferentially discharged through the capillary tube under the action of pressure, and when the water flow reaches the capillary tube, the flow resistance is formed due to the small inner diameter of the capillary tube, effectively limiting the water flow, thereby achieving efficient gas discharge while preventing a large amount of water leakage.

[0020] In the heat exchange component of the present embodiment, the structure can effectively alleviate the gas blockage problem caused by gas accumulation in the heating flow channel, avoid the phenomena of water outlet delay, unstable water flow or dry burning during the start-up of the device, and improve the heat exchange efficiency and water outlet stability. In addition, the capillary tube has a simple structure and does not need to be provided with additional gas discharge elements or complex gas discharge mechanisms, which is beneficial to the compactness and reliability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description can also be obtained by those skilled in the art without creative effort.

[0022] Figure 1 The water channel schematic diagram of the water treatment device in the embodiment of the present application is shown;

[0023] Figure 2 A perspective view of the water treatment device in the embodiment of the present application is shown.

[0024] Figure 3 A perspective view of the water treatment device in the embodiment of the present application is shown.

[0025] Figure 4 A perspective view of the water treatment device in the embodiment of the present application is shown.

[0026] Figure 5 A perspective view of the water treatment device in the embodiment of the present application is shown.

[0027] Reference signs:

[0028] 1, water treatment device;

[0029] 10, heat exchange assembly;

[0030] 100, heat exchange component; 110, heating flow channel; 111, water inlet pipe; 120, circulating flow channel;

[0031] 200, capillary tube;

[0032] 300, instant heating component;

[0033] 20, heating assembly; 201, heating component; 2011, heating tank; 2012, heater; 202, circulating pump; 203, water replenishing valve; 30, water path structure; 301, water inlet path; 3011, water inlet valve; 302, water outlet path; 40, water outlet component; 401, faucet; 4011, one-way valve; 402, temperature sensor; 50, shell. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the existing water treatment device, such as a direct drinking machine, a heat exchanger is usually provided to improve the heating efficiency. The heat exchange component preheats or heats the water flow flowing through the internal flow channel thereof by heat exchange with the heating medium.

[0036] However, in actual operation, the exhaust effect of the heat exchange element is usually limited, and gas is prone to accumulate in the flow channel, especially after the device is started for the first time or restarted after a long period of inactivity. The exhaust effect is poor. This phenomenon hinders the normal flow of water, causing water delay, unstable water flow, and even dry burning risk during device startup, thereby affecting heat exchange efficiency and water stability. Specifically, if only exhaust structures such as exhaust pipes are added to the heat exchange element, hot water in the heat exchange element is also prone to leak out through the exhaust structure, affecting the normal operation of the device.

[0037] Based on this, referring to Figures 1 to 5 The utility model discloses a heat exchange assembly 10, which comprises a heat exchange element 100 and a capillary tube 200. The heat exchange element 100 is provided with a heating flow channel 110. The heat exchange element 100 is provided with a water inlet pipe 111 at the input port of the heating flow channel 110. The water outlet end of the water inlet pipe 111 is connected to the heating flow channel 110. The gas inlet of the capillary tube 200 is connected to the heating flow channel 110. The capillary tube 200 is used to exhaust the gas in the heating flow channel 110 and limit the water flow. The inner diameter of the capillary tube 200 is smaller than the inner diameter of the water inlet pipe 111. The height of the gas inlet is not lower than the height of the water outlet end.

[0038] In the heat exchange assembly 10 of the embodiment, the gas inlet of the capillary tube 200 is connected to the heating flow channel 110 and has a smaller inner diameter than the water inlet pipe 111. This allows the gas in the heating flow channel 110 to be preferentially exhausted through the capillary tube 200 under pressure. When the water flow reaches the capillary tube 200, the small inner diameter of the capillary tube 200 creates a flow resistance, effectively limiting the water flow. This achieves efficient exhaust while preventing excessive water leakage.

[0039] In the heat exchange assembly 10 of the embodiment, this structure effectively alleviates the gas blockage problem caused by gas accumulation in the heating flow channel 110, avoids water delay, unstable water flow, or dry burning during device startup, and improves heat exchange efficiency and water stability. In addition, the capillary tube 200 has a simple structure and does not require additional exhaust elements or complex exhaust mechanisms, which is beneficial to the compactness and reliability of the overall structure.

[0040] Further, the capillary tube 200 can be made of metal material or high-temperature resistant engineering plastic to meet the use requirements of the heat exchange assembly 10 in high-temperature, high-pressure and long-term humid environment. The metal material capillary tube 200 has high structural strength and heat resistance, and is suitable for scenes with high durability requirements; while the engineering plastic capillary tube 200 has good corrosion resistance and low surface tension, which helps the gas pass more smoothly, reduces water film adhesion, and improves the sealing effect. One end of the capillary tube 200 can be reliably communicated with the heating flow channel 110 of the heat exchange member 100 through welding, pressure connection or threaded connection, and the other end can be directly opened to the atmospheric environment, or connected to structures such as exhaust channels, exhaust structures, etc. for centralized treatment of the discharged gas or trace water.

[0041] At the same time, by setting the height of the gas inlet to be not lower than the height of the water outlet end, the gas can be more easily discharged from the capillary tube 200 under the action of gravity, avoiding liquid blockage of the capillary tube 200 and causing exhaust failure. Specifically, because the gas density is smaller than the liquid, the gas will naturally float and gather in the high point area of the flow channel inside the heating flow channel 110. If the gas inlet of the capillary tube 200 is set at a position not lower than the water outlet end of the water inlet pipe 111, the floating gas can be effectively captured and discharged, preventing the formation of a gas pocket in the heating flow channel 110, thereby ensuring the continuous flow of fluid in the heating flow channel 110 and the heat exchange efficiency.

[0042] In terms of structural arrangement, the capillary tube 200 can be arranged on the upper side or side of the water inlet pipe 111 to utilize the natural floating characteristics of the gas, making it easier for the accumulated gas in the heating flow channel 110 to enter the capillary tube 200. Specifically, the capillary tube 200 can be arranged vertically, inclined or adaptively according to the overall layout of the device, as long as its gas inlet is located above or on the side of the expected gas accumulation area in the heating flow channel 110. In addition, the connection between the water inlet pipe 111 and the heating flow channel 110 can be designed as a tapered structure or a structure with a flow guide slope, which can guide the water flow to enter the heating flow channel 110 smoothly and reduce water flow impact and turbulence, and can effectively reduce the dead zone or backflow area of the connection area, thereby reducing the possibility of gas stagnation and further reducing the risk of gas blockage.

[0043] The heat exchange element 100 can be a plate heat exchanger, a shell-and-tube heat exchanger, or a micro-channel heat exchanger, etc. The path of the heating flow channel 110 can be designed as a straight line type, a spiral type, or a return type according to actual heat exchange requirements. For different flow channel forms, the positions of the gas accumulation inside are also different. For example, in a straight line type flow channel, the gas is usually accumulated at the end or top of the flow channel; in a spiral or return type flow channel, the gas can be accumulated at each return high point or spiral top. Therefore, the setting position of the capillary tube 200 can correspond to the highest point or gas accumulation area of the heating flow channel 110 to realize directional exhaust. Specifically, the number of capillary tubes 200 can be one, two, or more than two, which is not uniquely limited here. When the heating flow channel 110 has a complex structure and multiple high points or gas accumulation areas, multiple capillary tubes 200 can be set to correspond to each gas accumulation point, thereby improving the overall exhaust efficiency and avoiding the influence of local gas blockage on the heat exchange performance.

[0044] Specifically, the air inlet is located above the central axis of the water inlet pipe 111 and is higher than the water flow level during normal operation.

[0045] This arrangement allows the air inlet to be above the water flow level inside the water inlet pipe 111, thereby effectively introducing external air during the operation of the water pump and avoiding the cavitation phenomenon caused by excessive negative pressure. The position of the air inlet above the central axis of the water inlet pipe 111 can ensure that air can still smoothly enter the interior of the pump body when the water level in the water inlet pipe 111 is not completely full, which helps to maintain the stability of the gas-liquid mixing state in the pump and improves the self-priming performance. It should be noted that the height of the air inlet relative to the central axis of the water inlet pipe 111 can be adjusted according to actual working conditions, and is specifically determined according to the pipe diameter of the water inlet pipe 111, the self-priming height requirement of the water pump, and the expected air inlet flow rate, which is not uniquely limited here. If the air inlet position is lower than or too close to the central axis of the water inlet pipe 111, it is easy to be flooded by the water flow under high water level conditions, causing air intake to be blocked and affecting the self-priming efficiency; if the position is too high, it may not be able to effectively introduce enough air under low water level conditions, which is also not conducive to the establishment of the self-priming process. Therefore, setting the air inlet above the central axis of the water inlet pipe 111 can balance the air intake smoothness and structural compactness under various water level conditions.

[0046] Specifically, the inner diameter of the capillary tube 200 is 0.5-2 mm.

[0047] It should be noted that the inner diameter of the capillary tube 200 can be 0.5 mm, 0.8 mm, 1.2 mm, 1.6 mm, 2 mm, and the specific value can be selected according to the actual fluid conveying demand, system pressure drop requirement and manufacturing process condition, which is not uniquely limited here. When the inner diameter of the capillary tube 200 is less than 0.5 mm, although the capillary effect can be further enhanced, it is easy to cause flow passage blockage, increase system maintenance difficulty, and may affect the overall flow stability due to excessive flow resistance; when the inner diameter is greater than 2 mm, the capillary effect is significantly weakened, and it is difficult to achieve the expected liquid guiding or dispensing function, thereby reducing the working efficiency of the device.

[0048] The inner diameter of the water inlet pipe 111 can be 2 mm to 10 mm, preferably 4.2 mm. It should be noted that the inner diameter of the water inlet pipe 111 can be 2 mm, 4.2 mm, 6 mm, 8 mm, 10 mm, and the specific value can be determined comprehensively according to the required flow of the system, the matching size of the connected components and the installation space, etc. which is not uniquely limited here. When the inner diameter of the water inlet pipe 111 is less than 2 mm, it may cause insufficient water supply flow, limiting the normal work of the downstream capillary tube 200 or other functional components; when the inner diameter is greater than 10 mm, although the flow is sufficient, it will increase the overall structure volume, which is not conducive to compact design, and may cause material waste and cost increase.

[0049] In a preferred embodiment, the inner diameter of the capillary tube 200 is 0.5 mm. This size takes into account the processing feasibility and anti-blocking performance while ensuring sufficient capillary force, and is especially suitable for low-flow and high-precision liquid conveying scenarios. Combined with the preferred inner diameter of 4.2 mm of the water inlet pipe 111, stable and moderate water supply pressure can be provided at the system inlet, so that the liquid is smoothly transferred from the water inlet pipe 111 to the capillary tube 200, avoiding flow turbulence or bubble mixing caused by sudden pressure difference, thereby improving the operation reliability and control accuracy of the entire fluid passage.

[0050] Further, the height of the water inlet pipe 111 is not less than the height of the output end of the heating flow passage 110.

[0051] The arrangement of the height relationship can ensure that the water flow flows from high to low during the water flow in the heat exchange element 100, which is beneficial to maintain the state of filling the flow channel with liquid and reduce the possibility of air bubble retention. In the embodiment, the heat exchange element 100 can be placed vertically or obliquely, so that the water inlet pipe 111 is located at the upper side of the heat exchange element 100, and the water flow in the heating flow channel 110 enters from the upper side of the heat exchange element 100 and outputs from the lower side. Such an arrangement allows the water flow to flow downward under the action of gravity, which helps to push the gas that may be mixed in the flow channel upward and then smoothly discharge through the capillary tube 200 located at the upper or top of the heat exchange element 100. Since the gas has a smaller density than the liquid, during the water flow from top to bottom, the gas will naturally gather in the upper region of the flow channel, so that it is easier to discharge the system through the capillary tube 200, thereby avoiding the accumulation of gas in the flow channel to form air resistance, affecting the heat exchange efficiency or causing the risk of local dry burning.

[0052] Specifically, the placement angle of the heat exchange element 100 can be adjusted according to the actual installation space and fluid dynamics requirements, for example, when placed vertically, the water inlet pipe 111 is at the same vertical height or slightly higher than the input end of the heating flow channel 110; when placed obliquely, the water inlet pipe 111 still needs to be higher than the output end of the heating flow channel 110, for example, the inclination angle can be 15°, 30°, 45° or 60°, etc., which ensures smooth water flow while considering the overall layout of the equipment. It should be noted that if the height of the water inlet pipe 111 is lower than the output end of the heating flow channel 110, it may cause the flow channel to be unable to be completely filled with liquid, and the gas is difficult to be effectively discharged, and even cause overheating damage due to local water shortage during heating. Therefore, the height difference between the water inlet pipe 111 and the output end of the heating flow channel 110 is an important structural feature to ensure stable operation and efficient heat exchange of the system. The capillary tube 200 can be arranged at the highest point or near the highest point of the heat exchange element 100 to maximize the gas collection and discharge effect.

[0053] The utility model also provides a water treatment equipment 1, it includes the heat exchange subassembly 10 in any one embodiment above and heating subassembly 20, heating subassembly 20 is coupled to heat exchange subassembly 10 and is used for heating heat exchange element 100.

[0054] It can be understood that in the water treatment equipment 1 of the embodiment, by arranging the heat exchange subassembly 10 in any one embodiment above, in the heat exchange subassembly 10 of the embodiment, the capillary tube 200 is communicated with the heating flow channel 110 and the inner diameter is less than the inner diameter of the water inlet pipe 111, so that the gas in the heating flow channel 110 is discharged through the capillary tube 200 under the action of pressure, and when the water flow reaches the capillary tube 200, the flow resistance is formed due to the small inner diameter of the capillary tube 200, effectively limiting the water flow, thereby achieving efficient gas discharge while preventing water leakage.

[0055] In the heat exchange assembly 10 of the present embodiment, the structure can effectively alleviate the air blockage problem caused by gas accumulation in the heating flow channel 110, avoid the phenomena of water output delay, unstable water flow or dry burning during the start-up of the equipment, and improve the heat exchange efficiency and water output stability. In addition, the capillary tube 200 has a simple structure and does not need to be additionally provided with an exhaust element or a complex exhaust mechanism, which is beneficial to the compactness and reliability of the overall structure.

[0056] In an embodiment, the heat exchange assembly 10 further comprises a heating element 300 connected to the output end of the heating flow channel 110 and used for heating the water flow output by the heating flow channel 110. The heating element 300 can adopt a structure form of an electric heating tube, a thick film heater or a PTC ceramic heating element, which has the characteristics of fast response and local high power heating, and is suitable for secondary heating of the preheated water flow. Specifically, the heating element 300 can be fixedly installed in the downstream pipeline of the heating flow channel 110, and its heating area is directly in contact with the water flow channel to ensure efficient heat transfer to the water flow.

[0057] When using the water treatment equipment 1 in the present embodiment, when a large flow of hot water is needed, the heating assembly 20 can heat the heat exchange element 100 to preliminarily heat the water flow passing through the heat exchange element 100; then, the preheated water flow enters the heating flow channel 110 and flows into the heating element 300 from the output end thereof to receive further heating in the heating element 300. Since the water flow has been preheated by the heating assembly 20 before entering the heating element 300, its initial temperature is significantly higher than that of the normal temperature water, thereby reducing the temperature rise amplitude required to be provided by the heating element 300. Under the condition that the power of the heating element 300 is constant, the required heating time is shortened, and the water flow that can be processed per unit time is correspondingly increased, thereby improving the hot water output capacity of the entire machine. In addition, preheating can also reduce the instantaneous load of the heating element 300, which helps to prolong the service life and improve the operation stability of the heating element 300.

[0058] Compared with the traditional single heating type heating scheme, the present embodiment realizes the staged utilization of heat energy through the series heating structure of the heating assembly 20 and the heating element 300. The heating assembly 20 undertakes the basic heating task and is suitable for stable heating in long-time and large-flow working conditions; the heating element 300 focuses on rapid reheat and meets the instantaneous high-temperature demand. The cooperation of the two can effectively improve the hot water output efficiency without significantly increasing the power of the entire machine, and is especially suitable for use scenes that require continuous large-flow hot water.

[0059] Specifically, the instant heater 300 can be a thick-film heating tube. As a mature electric heating element, the thick-film heating tube generally includes a metal base tube, an insulating medium layer, and a resistive heating layer printed and sintered on the surface of the base tube. It has the advantages of fast thermal response speed, high power density, compact size, etc., and is suitable for scenarios that require instant heating of water flow. In the technical solution of the present application, the instant heater 300 adopts a thick-film heating tube, which can quickly heat the water flowing through its internal channel, thereby meeting the user's demand for instant hot water. In addition, the outer surface of the thick-film heating tube can be directly used as a structural support surface to connect with other components, which is beneficial to simplify the overall structure. Of course, the instant heater 300 can also adopt other forms of instant heating elements, such as PTC heaters, quartz tube heaters, or electromagnetic induction heating modules, etc. The specific choice can be made according to the overall space layout, heating efficiency requirements, cost control, etc. Factors are comprehensively selected, and here is not the only limitation.

[0060] Specifically, the water treatment device 1 further comprises a water path structure 30, and the water path structure 30 is provided with an inlet water path 301 and an outlet water path 302. The inlet water path 301 is connected to the heat exchange element 100 and is used to deliver water flow to the heating flow channel 110. The water flow can be tap water, purified water, etc., which is not limited here. The water flow output by the heat exchange element 100 is heated by the instant heater 300 for use.

[0061] The inlet end of the inlet water path 301 can be connected to an external water supply source, such as a tap water pipeline or a water storage device. Its internal channel is designed as a pipe structure with a predetermined inner diameter to ensure that the water flow has a stable flow rate and pressure before entering the heat exchange element 100. The connection between the inlet water path 301 and the heat exchange element 100 can be achieved by screw connection, quick connector or welding, etc. The specific choice can be made according to the actual assembly requirements and sealing performance requirements.

[0062] The heat exchange element 100 is internally provided with a heating flow channel 110, which is in communication with the inlet water path 301, so that the water flow can flow through the heat exchange element 100 and conduct heat with the internal heat exchange structure. The heat exchange element 100 can be made of metal material to improve the heat conduction efficiency. During the process of water flow flowing through the heating flow channel 110, the heat exchange element 100 can preliminarily heat or adjust the temperature of the water flow, providing a basic condition for the subsequent rapid heating of the instant heater 300. This structure design helps to reduce the instantaneous power load of the instant heater 300 and improve the overall energy efficiency.

[0063] The instant heating element 300 receives water flow from the output water path 302 and instantaneously heats the water flow through the built-in electric heating element (such as a thick-film heating tube, a quartz heating tube, or a metal heating tube), so that the outlet water temperature quickly reaches the set value. The instant heating element 300 can be provided with a temperature sensor and a flow sensor for real-time monitoring of the water flow temperature and flow, and feeding back signals to the control system to dynamically adjust the heating power, ensuring the stability and safety of the outlet water temperature. Through the sequential connection and cooperation of the water path structure 30, the heat exchange element 100, and the instant heating element 300, the water treatment equipment 1 can ensure the cleanliness of the outlet water while achieving efficient, fast, and stable hot water supply.

[0064] In an embodiment, the water treatment equipment 1 further comprises an outlet element 40 connected to the output water path 302 and used for controlling the output water flow of the output water path 302. By providing the outlet element 40, the user can start, stop, or adjust the water flow output according to the actual water demand, improving the flexibility and safety of equipment use.

[0065] Specifically, the outlet element 40 comprises a faucet 401 and a one-way valve 4011. The faucet 401 is connected to the output water path 302 and used for outputting water flow, which can adopt manual control or automatic control form, such as knob type, press type, or induction type structure, which is specifically selected according to the use scene and user demand. The one-way valve 4011 is provided on the output water path 302 to ensure that the water flow direction of the output water path 302 is unidirectional along the order of the instant heating element 300, the output water path 302, and the faucet 401. The provision of the one-way valve 4011 can effectively prevent the water flow from flowing backward in the non-working state, avoiding the backflow of untreated or unheated water to the instant heating element 300 or the upstream water path, thereby ensuring the water quality and equipment operation stability. The one-way valve 4011 can be selected from spring type one-way valve, gravity type one-way valve, or diaphragm type one-way valve, etc., and its specific type can be adapted according to the pipe diameter, flow rate, and pressure of the output water path 302, etc.

[0066] Further, the outlet element 40 further comprises a temperature sensor 402. The temperature sensor 402 is provided on the output water path 302 to obtain the temperature signal of the output water flow. The temperature sensor 402 can be arranged at a position close to the upstream of the faucet 401 to monitor the water temperature in real time, provide feedback signals to the control system, and adjust the heating power or start-stop state of the instant heating element 300, thereby realizing precise control of the outlet water temperature. The temperature sensor 402 can be of the type of thermistor, thermocouple, or infrared temperature sensor, and its installation mode can be embedded, externally attached, or flange connected, which is determined according to the structure form and sealing requirements of the output water path 302. By providing the temperature sensor 402, not only the comfort of user use can be improved, but also the risk of scalding due to abnormal water temperature or equipment overheating damage can be avoided, enhancing the safety performance of the whole machine.

[0067] Specifically, the waterway structure 30 can be a waterway plate, and the inlet waterway 301 and the outlet waterway 302 are integrated therein, with high integration degree, which is conducive to reducing the overall volume and improving the structural compactness, while reducing the number of external connecting pipelines, thereby reducing the risk of water leakage and facilitating assembly and maintenance. The waterway plate can be made of metal materials or engineering plastics, and the specific material selection can be determined according to the temperature, pressure and corrosion resistance requirements of the working medium. In addition, the waterway structure 30 can also be a combined structure of multiple pipelines, that is, the inlet waterway 301 and the outlet waterway 302 are respectively composed of independent pipelines and are connected by joints, flanges or welding to form complete fluid passages. This combined structure has higher flexibility in layout, which is convenient to adapt to the needs of different installation spaces, especially suitable for occasions with strict internal space limitations or requiring post-maintenance disassembly. It should be noted that whether the waterway plate form or the combined structure of multiple pipelines, the inlet waterway 301 and the outlet waterway 302 should be kept fluid isolated inside or outside the waterway structure 30 to avoid mutual communication, so as to ensure that the fluid flows along the preset path and maintains normal operation of the system. The waterway plate can also be provided with an exhaust passage, and the capillary tube 200 is connected to the exhaust passage of the waterway plate. The exhaust passage is used to exhaust the gas accumulated inside the waterway structure 30, preventing the gas blockage phenomenon from affecting the stability and efficiency of fluid flow. One end of the capillary tube 200 communicates with the exhaust passage, and the other end can lead to the external environment or be connected to an exhaust collection device. In some embodiments, the exhaust passage can be provided at the highest point of the waterway plate or in the area where the fluid is prone to accumulate gas, so as to improve the exhaust efficiency. In addition, the cross-sectional shape of the exhaust passage can be circular, oval or polygonal, which is determined according to the processing technology and space layout requirements. By setting the exhaust passage and the cooperation structure of the capillary tube 200, the exhaust performance of the waterway structure 30 can be effectively improved, avoiding problems such as flow fluctuation, pressure abnormality or system response delay caused by gas retention.

[0068] In an embodiment, the water treatment device 1 further comprises a housing 50 serving as a mounting carrier for mounting the heat exchange assembly 10, the heating assembly 20 and the waterway structure 30. The housing 50 constitutes an external support structure of the water treatment device 1 as a whole, providing a stable mounting basis for the internal functional assemblies and protecting the internal components from external environment. Specifically, the housing 50 can be made of metal material or high-strength engineering plastic. The housing 50 is internally provided with multiple mounting positions or mounting brackets for respectively fixing the heat exchange assembly 10, the heating assembly 20 and the waterway structure 30, ensuring the relative position stability of the assemblies during device operation and avoiding connection loosening or sealing failure caused by vibration or water flow impact. In some embodiments, the housing 50 can be designed as a split structure, for example, comprising an upper housing and a lower housing, connected by fasteners such as screws, buckles or pins, facilitating assembly and later disassembly and maintenance. The selection of fasteners can be adjusted according to the use environment and disassembly frequency, for example, quick-release buckles can be used in situations requiring frequent maintenance, while anti-loose screws can be used in high-vibration working conditions to improve connection reliability.

[0069] In an embodiment, the water treatment device 1 further comprises a water inlet valve 3011 arranged on the water inlet waterway 301 to control the on-off of the water inlet waterway 301. The water inlet valve 3011 can adopt the structure form of solenoid valve, electric ball valve or manual stop valve, and the specific selection is made according to the automation degree and use scene of the water treatment device 1. For example, when the water treatment device 1 is used for household water purification system, the water inlet valve 3011 can be selected as a normally closed solenoid valve, which is convenient for electrical connection with the control system to realize automatic start-stop; when used in industrial water treatment scene, an electric ball valve can be selected to adapt to the requirements of higher water pressure and frequent opening and closing. The arrangement of the water inlet valve 3011 enables the water source to be cut off in time during device maintenance, filter replacement or abnormal shutdown, preventing water overflow or abnormal internal pressure of the device caused by continuous water supply of the waterway, thereby improving the safety and controllability of the water treatment device 1. In addition, the water inlet valve 3011 can also be used in cooperation with flow sensors, pressure sensors and other elements to automatically close when detecting water inlet abnormalities, further enhancing the stable operation ability of the system.

[0070] In an embodiment, the heat exchange member 100 further comprises a circulation flow channel 120 arranged in a spaced manner with the heating flow channel 110, and the heating assembly 20 is communicated with the circulation flow channel 120. The heating assembly 20 is used for heating and driving the heat exchange medium to convey along the circulation flow channel 120, and the heat exchange medium is used for heat exchange with the water flow in the heating flow channel 110.

[0071] In the embodiment, the heating flow channel 110 and the circulation flow channel 120 are arranged in a spaced manner, the heating flow channel 110 transports the water flow input by the water inlet 301 and passes through the instant heating element 300 to be heated and output, and the circulation flow channel 120 is used to transport the heat exchange medium output by the heating assembly 20, so that the heat in the heat exchange medium is conducted to the heat exchange element 100, and the water flow in the heating flow channel 110 is heated. The heating flow channel 110 and the circulation flow channel 120 are arranged in parallel in a non-contact manner inside the heat exchange element 100, and heat transfer is realized between the two through the heat-conducting wall surface of the heat exchange element 100. Since the water flow in the heating flow channel 110 and the heat exchange medium in the circulation flow channel 120 are isolated from each other, water pollution or system failure caused by mixing of the media can be effectively avoided. At the same time, the structure makes the instant heating element 300 only need to perform secondary heating on the preheated water flow, thereby reducing the instantaneous power demand of the instant heating element 300, improving the overall energy efficiency and prolonging the service life of the instant heating element 300.

[0072] The heat exchange element 100 can be a plate heat exchanger. Specifically, the plate heat exchanger is composed of a plurality of parallel and stacked metal heat exchange plates, and the heating flow channel 110 and the circulation flow channel 120 are alternately arranged between adjacent heat exchange plates. The material of the heat exchange plate can be selected from metal materials such as stainless steel, titanium alloy or copper alloy, which have good heat conductivity and corrosion resistance, so as to ensure the heat exchange efficiency and structural reliability in long-term operation. In other embodiments, the heat exchange element 100 can also adopt a structure form of a shell-and-tube heat exchanger, a plate-fin heat exchanger or a micro-channel heat exchanger, which is specifically selected according to factors such as the spatial layout of the equipment, the heat load demand and the manufacturing cost. When the plate heat exchanger is adopted, its compact structure is beneficial to reducing the overall volume, and the large specific surface area can improve the heat exchange efficiency in a unit volume, so that the water flow in the heating flow channel 110 can obtain the required heat in a shorter time. If the structure design of the heat exchange element 100 is unreasonable, for example, the flow channel spacing is too large or the heat-conducting wall surface is too thick, it may cause the heat resistance to increase, the heat exchange efficiency to decrease, and then the heating performance of the overall machine to be affected. In a preferred embodiment, the heating flow channel 110 and the circulation flow channel 120 are isolated by the heat-conducting wall surface, there is no fluid exchange, and only heat exchange is realized through the heat-conducting wall surface.

[0073] Specifically, the heating assembly 20 includes a heating element 201 and a circulation pump 202, the heating element 201 is used to accommodate the heat exchange medium, the circulation pump 202 is respectively connected to the output end of the heating element 201 and the input end of the circulation flow channel 120, and the heating element 201 is connected to the output end of the circulation flow channel 120.

[0074] Through the above connection relationship, the heat exchange medium output by the heating component 201 flows through the circulating pump 202 and the circulating flow channel 120 in turn and returns to the heating component 201, thereby forming a circulating path. In the circulating path, the circulating pump 202 serves as a power source to drive the heat exchange medium to continuously flow in the path, thereby transferring the heat generated in the heating component 201 to the heat exchange component 100 through the circulating flow channel 120 to realize the circulating heating of the heat exchange component 100. This structure ensures the continuity and stability of heat transfer and avoids the problems of local overheating or reduced heating efficiency caused by medium stagnation.

[0075] Specifically, the heating component 201 further includes a heat tank 2011 for containing the heat exchange medium and a heater 2012 thermally coupled to the heat tank 2011. The heat tank 2011 serves as a storage and heating container for the heat exchange medium, and its internal space can contain a sufficient amount of heat exchange medium to meet the demand for continuous operation of the system; the heater 2012 can be embedded in the inside of the heat tank 2011 or attached to the outer wall thereof, and heat is transferred to the heat exchange medium in the heat tank 2011 by electric heating, electromagnetic induction heating or other heat conduction methods. The thermal coupling mode can include direct contact heat conduction, jacket heating structure or built-in heating pipe, etc., and the specific selection can be made according to the heat exchange efficiency, maintenance convenience and system space layout. This structure enables the heat exchange medium in the heat tank 2011 to be uniformly heated and transported to the circulating flow channel 120 by the circulating pump 202, thereby improving the overall heat exchange efficiency.

[0076] In an embodiment, the heat tank 2011 is connected to the water inlet channel 301 so as to supplement the heat tank 2011 with water through the water inlet channel 301. When the liquid level of the heat exchange medium in the heat tank 2011 decreases due to evaporation, leakage or insufficient initial filling during system operation, new heat exchange medium can be supplemented to the heat tank 2011 through the water inlet channel 301 to maintain the stability of the total amount of medium in the system and ensure the continuity of the circulating heating process.

[0077] Further, the heating assembly 20 further includes a water supplement valve 203 arranged between the water inlet channel 301 and the heat tank 2011 to control the water supplement. The water supplement valve 203 can be in the form of an electromagnetic valve, a float valve or a manually adjustable valve, and the specific selection can be made according to the automation degree and control demand of the system. For example, when a float valve is used, the liquid level in the heat tank 2011 can be automatically opened and closed to maintain the liquid level; when an electromagnetic valve is used, the water supplement operation can be automatically opened or closed by the control system according to the preset liquid level threshold in cooperation with a liquid level sensor. By arranging the water supplement valve 203, the overflow of the heat tank 2011 due to excessive water supplement or the dry burning of the heater 2012 due to insufficient water supplement can be effectively prevented, thereby improving the safety and reliability of system operation.

[0078] In an embodiment, the capillary tube 200 is in communication with the heating member 201, and the heating member 201 is in communication with the pressure relief structure.

[0079] Specifically, when the steam or gas pressure in the heating flow channel 110 increases due to heating, the gas or a small amount of water vapor discharged together with the gas can enter the interior of the heating member 201 through the capillary tube 200 for temporary storage, thereby avoiding the phenomenon of seal failure or water leakage caused by excessive pressure in the heating flow channel 110. At the same time, when the system needs to be relieved, the heating member 201 discharges the temporarily stored gas through the pressure relief structure itself or externally, achieving pressure balance. This structure design effectively improves the sealing reliability and operation safety of the system. Specifically, the communication mode between the capillary tube 200 and the heating member 201 can be welding, threaded connection, buckle connection, or flange connection, etc., which is determined according to actual assembly requirements and sealing level requirements, and is not limited herein.

[0080] Of course, in some embodiments, the capillary tube 200 can also be directly in communication with the external exhaust channel or the external environment for direct pressure relief. In such a structure, one end of the capillary tube 200 can be connected to the pressure concentration area near the heating flow channel 110, and the other end can extend to the outside of the device shell or be connected to the external exhaust system. This mode is suitable for scenarios that do not have special requirements for temporary storage of gas and only need to be quickly relieved, which can simplify the system structure and reduce manufacturing costs. A dust screen, hydrophobic membrane, or one-way valve, etc. can be arranged at the outlet of the capillary tube 200 in communication with the external environment to prevent external impurities or moisture from flowing back into the system, thereby ensuring long-term stable operation of the device.

[0081] It should be noted that the capillary tube 200 can be provided with one or more, which is not limited herein. When multiple capillary tubes 200 are provided, they can be connected to different positions of the heating member 201 or connected to the heating member 201 and the external environment at the same time to achieve multi-path exhaust and improve the pressure relief response speed and system redundancy. For example, the capillary tubes 200 are arranged at the high point and the low point of the heating flow channel 110, which helps to simultaneously discharge gas and excess condensed water, avoids gas blocking or water accumulation, and further improves the heat exchange efficiency and system stability.

[0082] In an embodiment, the waterway structure 30 is provided with an output channel, which can be an exhaust hole, a drain hole, or a drain pipeline. One end of the capillary tube 200 away from the heat exchange member 100 can be connected to the output channel through a pipeline. In this way, when the gas pressure in the heat exchange member 100 increases, the gas and / or liquid in the capillary tube 200 can be transported to the output channel and discharged through the output channel. Similarly, the heating member 201 can also be connected to the output channel through a pipeline. In this way, the heating member 201 can also be relieved through the output channel.

[0083] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0084] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0085] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0086] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0087] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat exchange component, characterized in that, include: A heat exchanger is provided with a heating flow channel, and the heat exchanger is provided with a water inlet pipe at the input port of the heating flow channel, and the water outlet end of the water inlet pipe is connected to the heating flow channel; as well as A capillary tube, the air inlet of which is connected to the heating channel, is used to discharge gas from the heating channel and limit the water flow; wherein, the inner diameter of the capillary tube is smaller than the inner diameter of the water inlet pipe, and the height of the air inlet is not lower than the height of the water outlet.

2. The heat exchange assembly according to claim 1, characterized in that, The air inlet is located above the central axis of the water inlet pipe.

3. The heat exchange assembly according to claim 1, characterized in that, The inner diameter of the capillary is 0.5mm-2mm.

4. The heat exchange assembly according to any one of claims 1-3, characterized in that, Compared to the horizontal plane, the height of the water inlet pipe is not lower than the height of the output end of the heating channel.

5. A water treatment device, characterized in that, include: The heat exchange assembly as described in any one of claims 1-4; as well as A heating component, thermally coupled to the heat exchange component and used to heat the heat exchange component.

6. The water treatment equipment according to claim 5, characterized in that, The heat exchanger also includes a circulating channel spaced apart from the heating channel. The heating component is connected to the circulating channel and is used to heat the heat exchange medium and drive the heat exchange medium to be transported along the circulating channel. The heat exchange medium is used to exchange heat with the water flow in the heating channel.

7. The water treatment equipment according to claim 6, characterized in that, The heating assembly includes a heating element and a circulating pump. The heating element is used to contain the heat exchange medium. The circulating pump is connected to the output end of the heating element and the input end of the circulating channel, and the heating element is connected to the output end of the circulating channel.

8. The water treatment equipment according to claim 7, characterized in that, The capillary tube is connected to the heating element, and the heating element is connected to a pressure relief structure.

9. The water treatment equipment according to claim 5, characterized in that, The water treatment equipment also includes a water circuit structure, which has an output channel, and the end of the capillary tube away from the heat exchanger is connected to the output channel.

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