Water inlet valve and waterway module

Abstract

The utility model relates to wall -hanging stove technical field discloses a kind of water inlet valve and waterway module, water inlet valve includes valve main body, water flow regulating assembly and water replenishing component, and water inlet valve is equipped with water inlet interface, bathroom heat exchange interface and water pump interface on valve main body, first water inlet passage, second water inlet passage and water replenishing passage are equipped in valve main body, water inlet interface and bathroom heat exchange interface are connected through first water inlet passage, simultaneously, it is selectively communicated through second water inlet passage, water replenishing passage is communicated with water pump interface;Water flow regulating assembly is set on valve main body, and its output end can open or close second water inlet passage;The inner wall of second water inlet passage is equipped with the communication port for communicating second water inlet passage and water replenishing passage, and one end of water replenishing component extends into valve main body and can selectively block communication port.The water inlet valve is integrated on the basis of flow size control function Water replenishing function is also integrated simultaneously, and the product performance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wall-hung boiler technology, specifically to a water inlet valve and water circuit module. Background Technology

[0002] A wall-hung boiler is a common type of home heating equipment that provides both domestic hot water and heating. When providing domestic hot water, cold water is continuously supplied to the heat exchanger through the boiler's inlet valve. This cold water exchanges heat with the hot water from the boiler within the heat exchanger to form warm water, which then flows out from the outlet valve for the user's use.

[0003] Currently, the inlet valves used in the market typically rely on flow-limiting rings to restrict the inlet water flow, ensuring that the wall-hung boiler can provide domestic hot water quickly and promptly at its rated power. However, as the weather changes, the water temperature also changes. When the water temperature is high, the same amount of gas is sufficient to heat the water to a very high temperature. For example, a 20KW wall-hung boiler can only heat cold water from 5℃ to 40℃ at a maximum calorific value of 8L / min. In summer, when the outside temperature is high, the cold water temperature can reach 25℃. If the water flow is still limited to 8L / min, the water temperature will rise rapidly, resulting in short heating time, frequent ignition switching, and potentially affecting the boiler's lifespan. When the temperature exceeds 40℃, it can also cause burns, affecting the user experience. In this case, it is necessary to increase the flow rate from 8L / min to 10L / min or higher. However, the flow rate of the flow-limiting ring is fixed, so it cannot effectively solve this problem.

[0004] Meanwhile, due to water loss during long-term operation of the heating water circuit, water needs to be replenished frequently. Therefore, existing wall-hung boilers usually have a separate water replenishment module in the water circuit system to complete the water replenishment, resulting in a large space occupation. Consequently, the inlet valve structure of existing wall-hung boilers is not perfect.

[0005] Therefore, there is an urgent need to provide an inlet valve and water circuit module to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an inlet valve and a water circuit module. The inlet valve integrates the function of flow rate control as well as the function of water replenishment, thus ensuring product performance.

[0007] This utility model is achieved through the following technical solution:

[0008] A water inlet valve, comprising:

[0009] The valve body is provided with a water inlet, a bathroom heat exchanger and a water pump. The valve body is provided with a first water inlet channel, a second water inlet channel and a water replenishment channel. The water inlet and the bathroom heat exchanger are normally connected through the first water inlet channel and selectively connected through the second water inlet channel. The water replenishment channel is connected to the water pump.

[0010] A water flow regulating component is disposed on the valve body, and the output end of the water flow regulating component can open or close the second water inlet channel;

[0011] The water replenishment component has a communication port on the inner wall of the second water inlet channel for connecting the second water inlet channel and the water replenishment channel. One end of the water replenishment component extends into the valve body and can selectively block the communication port.

[0012] As an optional solution, the water replenishment component includes an automatic water replenishment component, the connection port includes a second connection port, and the output end of the automatic water replenishment component extends into the valve body and can selectively block the second connection port.

[0013] As an optional solution, the water replenishment component also includes a manual water replenishment component, and the connection port also includes a first connection port. The first connection port and the second connection port are independent of each other. One end of the manual water replenishment component extends into the valve body and can selectively block the first connection port.

[0014] As an optional solution, the second water inlet channel includes a water inlet channel section, a water-increasing channel section, and a flow-increasing channel section. The inlet end of the water inlet channel section and the outlet end of the flow-increasing channel section are respectively connected to the two ends of the first water inlet channel. The outlet end of the water inlet channel section and the inlet end of the flow-increasing channel section are respectively connected to the two ends of the water-increasing channel section. The first water inlet channel, the water inlet channel section, the water-increasing channel section, and the flow-increasing channel section together form a ring structure.

[0015] As an optional solution, the first connection port is located on the axial direction of the water-increasing channel section near one end of the water inlet channel section, and the manual water replenishment component is located on the side of the valve body near the inlet end of the water-increasing channel section; the second connection port is located on the circumferential side of the water-increasing channel section away from the inlet end of the water inlet channel section, and the automatic water replenishment component is located on the side of the valve body away from the inlet end of the water inlet channel section.

[0016] As an optional solution, the water flow regulating component is located downstream of the manual water replenishment component and the automatic water replenishment component, and the output end of the water flow regulating component is located at the intersection of the water increase channel section and the flow increase channel section, for connecting or disconnecting the water increase channel section and the flow increase channel section.

[0017] As an alternative, the water flow regulating component and the automatic water replenishment component are located on the same side of the valve body and are arranged side by side adjacent to each other.

[0018] As an optional solution, the valve body includes a first valve body and a second valve body. The water-increasing channel section is opened in the first valve body, and the first water inlet channel is opened in the second valve body. The first valve body includes a first insertion pipe and a second insertion pipe arranged at intervals. The second valve body includes a first receiving pipe and a second receiving pipe arranged at intervals. The first insertion pipe is inserted into the first receiving pipe and the two together form the water inlet channel section. The second insertion pipe is inserted into the second receiving pipe and the two together form the flow-increasing channel section.

[0019] As an optional solution, the first valve body further includes an outer ring branch pipe sleeved around the outer periphery of the first insertion pipe. The outer ring branch pipe is inserted into the first receiving pipe, and a first water supply cavity is formed between the inner wall of the outer ring branch pipe and the outer wall of the first insertion pipe. The second valve body is also provided with a second water supply cavity that is directly connected to the water pump interface. A water supply port is opened on the side wall of the first receiving pipe to connect the first water supply cavity and the second water supply cavity. The first water supply cavity, the water supply port, and the second water supply cavity together form the water supply channel.

[0020] As an optional solution, the water flow regulating assembly includes a water-increasing solenoid valve and a first sealing member connected to the output end of the water-increasing solenoid valve. The water-increasing solenoid valve is mounted on the valve body and can drive the first sealing member to move, so that the first sealing member opens or blocks the second water inlet channel; and / or

[0021] The automatic water replenishment component includes a water replenishment solenoid valve and a second sealing member connected to the output end of the water replenishment solenoid valve. The water replenishment solenoid valve is installed on the valve body and can drive the second sealing member to move, so that the second sealing member opens or blocks the second communication port.

[0022] As an optional solution, a filter screen is installed inside the water inlet.

[0023] As an optional solution, a flow-limiting loop is provided in the first water inlet channel.

[0024] As an optional solution, a filter bracket is provided in the first water inlet channel at the position where it intersects with the inlet end of the second water inlet channel. One end of the flow-limiting ring abuts against the filter bracket, and the other end of the flow-limiting ring abuts against the stepped surface inside the first water inlet channel.

[0025] As an optional solution, a flow detection component is provided on the passage between the outlet end of the first water inlet channel and the bathroom heat exchange interface.

[0026] A water circuit module includes a plate heat exchanger, an outlet valve, and the aforementioned inlet valve, wherein the plate heat exchanger is connected between the outlet valve and the inlet valve.

[0027] The beneficial effects of this utility model are as follows:

[0028] This utility model provides a water inlet valve that integrates flow rate control and water replenishment functions, ensuring product performance. Firstly, the water inlet valve can adjust the flow rate according to water usage. In summer, when the outside water temperature is high, the heat required to reach the set temperature is low, and the heat exchange time between the bathroom water and the plate heat exchanger is short. The second inlet channel is opened via the water flow regulating component, supplying water to the bathroom through both the first and second inlet channels, ensuring sufficient flow at the outlet and avoiding frequent on / off heating that could affect the lifespan. In winter, when the outside water temperature is low, the heat required to reach the set temperature is high, and the heat exchange time between the bathroom water and the plate heat exchanger is longer. The second inlet channel is closed via the water flow regulating component, with only the first inlet channel supplying water to the bathroom at a constant flow rate, ensuring sufficient water temperature at the outlet. Therefore, this water inlet valve can adjust the flow rate according to water usage, avoiding the limitations imposed by traditional flow-limiting rings, meeting different temperature requirements, and improving the user experience. Secondly, the inlet valve also integrates the water replenishment function, eliminating the need for a separate water replenishment structure in the water system, saving space for separate water replenishment installation and reducing unnecessary space occupation.

[0029] This utility model also provides a water circuit module, which integrates the function of controlling the flow rate and the function of replenishing water by setting the above-mentioned water inlet valve, thus ensuring product performance. Attached Figure Description

[0030] To more clearly and understandably illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the water inlet valve provided in this embodiment of the utility model;

[0032] Figure 2 This is a first sectional view of the inlet valve provided in this embodiment of the utility model under high flow mode;

[0033] Figure 3 This is a second sectional view of the inlet valve provided in this embodiment of the utility model under high flow mode;

[0034] Figure 4 This is a cross-sectional view of the inlet valve in low flow mode provided by an embodiment of the present invention;

[0035] Figure 5 This is a first cross-sectional view of the water inlet valve in manual water replenishment mode provided in this embodiment of the utility model;

[0036] Figure 6 This is a second sectional view of the water inlet valve in manual water replenishment mode provided in this embodiment of the utility model;

[0037] Figure 7 This is a first cross-sectional view of the water inlet valve in automatic water replenishment mode provided in this embodiment of the utility model;

[0038] Figure 8 This is a second cross-sectional view of the water inlet valve in automatic water replenishment mode according to an embodiment of the present invention.

[0039] In the picture:

[0040] 1. Valve body; 11. First water inlet channel; 12. Second water inlet channel; 121. Water inlet channel section; 122. Water boosting channel section; 123. Flow boosting channel section; 13. Water replenishment channel; 131. First water replenishment chamber; 132. Second water replenishment chamber; 133. Water inlet; 14. First valve body; 141. First connecting port; 142. Second connecting port; 143. First insertion pipe; 144. Second insertion pipe; 145. Outer ring branch pipe; 15. Second valve body; 151. Water inlet interface; 152. Bathroom heat exchange interface; 153. Heating heat exchange interface; 154. Water pump interface; 155. First receiving pipe; 156. Second receiving pipe; 16. Mounting base; 161. First channel; 162. Second channel;

[0041] 2. Water flow regulating component; 21. Water increase solenoid valve; 22. First sealing component;

[0042] 3. Manual water replenishment assembly; 31. Water replenishment valve body; 32. Valve core; 33. Handwheel;

[0043] 4. Automatic water replenishment component; 41. Water replenishment solenoid valve; 42. Second sealing component;

[0044] 5. Flow detection component; 6. Filter screen; 7. Flow limiting ring; 8. Filter bracket. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] This embodiment provides an inlet valve that can regulate the inlet flow of bathroom water (i.e., domestic water) and replenish the heating water circuit, adapting to different user needs and providing a comfortable experience. The inlet valve is applied to the water supply module of the wall-hung boiler. This module specifically includes an inlet valve, an outlet valve, and a plate heat exchanger connecting the inlet and outlet valves. The inlet valve is connected to a cold water source, and the outlet valve is connected to the wall-hung boiler. The plate heat exchanger has hot water and cold water channels. In heating mode, the wall-hung boiler supplies hot water to the heating pipes through the outlet valve, and then the hot water is pumped back to the boiler, forming a medium circulation. In bathroom mode, hot water from the wall-mounted boiler flows through the outlet valve to the hot water channel of the plate heat exchanger, while external cold water flows through the inlet valve to the cold water channel of the plate heat exchanger. Thus, the cold water in the cold water channel exchanges heat with the hot water in the hot water channel to form warm water, which then flows from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom to the user. This part is existing technology and will not be elaborated on here.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, the inlet valve includes a valve body 1, a water flow regulating component 2, and a water supply component. The valve body 1 is provided with an inlet port 151, a bathroom heat exchange port 152, a heating heat exchange port 153, and a water pump port 154. The valve body 1 is provided with a first inlet channel 11, a second inlet channel 12, and a water supply channel 13. The inlet port 151 and the bathroom heat exchange port 152 are normally connected through the first inlet channel 11, and selectively connected through the second inlet channel 12. The water supply channel 13 is connected to the water pump port 154. The water flow regulating component 2 is disposed on the valve body 1. The output end of the water flow regulating component 2 can open or close the second inlet channel 12. The inner wall of the second inlet channel 12 has a connecting port for connecting the second inlet channel 12 and the water supply channel 13. One end of the water supply component extends into the valve body 1 and can selectively block the connecting port.

[0051] With the direction facing the water inlet 151 as the front, the water flow regulating component 2 and the automatic water replenishment component 4 are both located above the valve body 1. The manual water replenishment component 3 is located on the front side of the valve body 1 and above the water inlet 151. The bathroom heat exchange interface 152 and the heating heat exchange interface 153 are both located at the bottom of the valve body 1. The heating heat exchange interface 153 is close to the water inlet 151, and the bathroom heat exchange interface 152 is far away from the water inlet 151. The water pump interface 154 is located on the right side of the valve body 1, close to the water inlet 151. The inlet port 151 is used to connect to an external cold water source (usually tap water), the bathroom heat exchange port 152 is used to connect to the inlet of the cold water channel of the plate heat exchanger, the heating heat exchange port 153 is used to connect to the outlet of the hot water channel of the plate heat exchanger, the outlet of the cold water channel and the inlet of the hot water channel of the plate heat exchanger are both connected to the outlet valve, and the water pump port 154 is connected to the heating heat exchange port 153 and is used to connect the water pump, which is used to transport the medium back to the wall-hung boiler.

[0052] like Figure 2 As shown, a flow-limiting ring 7 is installed inside the first water inlet channel 11. The flow-limiting ring 7 is used to limit the amount of cold water entering the first water inlet channel 11, ensuring that the water can be heated to the rated temperature under limited heat power. It should be noted that the specific structure and working principle of the flow-limiting ring 7 are existing technologies and will not be described in detail here.

[0053] Therefore, the water inlet valve provided in this embodiment integrates the function of flow rate control as well as the function of water replenishment, thus ensuring product performance.

[0054] Firstly, the inlet valve can adjust the flow rate according to water usage. In summer, when the outside water temperature is high, the heat required to reach the set temperature is low, and the heat exchange time between the bathroom water and the plate heat exchanger is short. The second inlet channel 12 is opened by the water flow regulating component 2, and the first inlet channel 11 and the second inlet channel 12 supply water to the bathroom heat exchange interface 152 together, ensuring sufficient flow at the outlet and avoiding frequent on / off ignition heating which would affect the service life. In winter, when the outside water temperature is low, the heat required to reach the set temperature is high, and the heat exchange time between the bathroom water and the plate heat exchanger is longer. The second inlet channel 12 is closed by the water flow regulating component 2, and only the first inlet channel 11 with a constant flow rate supplies water to the bathroom heat exchange interface 152, ensuring that the water at the outlet has sufficient temperature. This allows the inlet valve to adjust the flow rate according to water usage, and the product is not limited by the previous flow-limiting ring 7, meeting different temperature requirements and improving the user experience.

[0055] Secondly, the inlet valve also integrates a water replenishment function. When the heating water circuit is short of water, the connection port is opened through the water replenishment component. At this time, the second inlet channel 12 connects to the water replenishment channel 13 through the connection port. The tap water in the second inlet channel 12 flows into the water replenishment channel 13 through the connection port, and finally reaches the water pump interface 154. Then, it is pumped to the wall-mounted boiler for heating, thus replenishing the heating water circuit. By integrating the water replenishment component into the inlet valve, there is no need to set up a separate water replenishment structure in the water circuit system, saving space for separate installation of the water replenishment structure and reducing unnecessary space occupation and costs.

[0056] Specifically, such as Figure 2 As shown, in this embodiment, the water replenishment component includes an automatic water replenishment component 4, and the connection port includes a second connection port 142. The output end of the automatic water replenishment component 4 extends into the valve body 1 and can selectively block the second connection port 142, so that the second water inlet channel 12 can be connected to or disconnected from the water replenishment channel 13 through the second connection port 142. By setting the automatic water replenishment component 4, water can be automatically replenished to the heating water circuit. When in use, the automatic water replenishment component 4 is powered on, and the second connection port 142 is opened. At this time, the second water inlet channel 12 is connected to the water replenishment channel 13 through the second connection port 142. The tap water in the second water inlet channel 12 flows into the water replenishment channel 13 through the second connection port 142, and finally reaches the water pump interface 154. Then, it is pumped to the wall-mounted boiler for heating, realizing automatic water replenishment, ensuring intelligence, and improving the user experience.

[0057] Furthermore, such as Figure 2 As shown, the water replenishment component also includes a manual water replenishment component 3, and the connection port includes a first connection port 141. The first connection port 141 and the second connection port 142 are independent of each other. One end of the manual water replenishment component 3 extends into the valve body 1 and can selectively block the first connection port 141, so that the second water inlet channel 12 can be connected to or disconnected from the water replenishment channel 13 through the first connection port 141. By setting the manual water replenishment component 3, water can be manually replenished to the heating water circuit under certain necessary circumstances. When in use, the manual water replenishment component 3 is manually operated to open the first connection port 141. At this time, the second water inlet channel 12 is connected to the water replenishment channel 13 through the first connection port 141. The tap water in the second water inlet channel 12 flows into the water replenishment channel 13 through the first connection port 141, and finally reaches the water pump interface 154. Then, it is pumped to the wall-mounted boiler for heating, thus realizing manual water replenishment.

[0058] Therefore, the inlet valve also integrates automatic and manual water replenishment functions. Both the automatic water replenishment component 4 and the manual water replenishment component 3 can be used independently. When one of them fails, the other can still play the role of water replenishment, which fully ensures the realization of the water replenishment function of the wall-hung boiler heating circuit. At the same time, integrating the manual water replenishment component 3 and the automatic water replenishment component 4 into the same inlet valve saves the space required to install the manual water replenishment structure and the automatic water replenishment structure separately, reducing unnecessary space occupation and costs.

[0059] Based on the above structure, the water inlet valve provided in this embodiment has four operating modes, namely:

[0060] 1. High-traffic mode: such as Figure 2 As shown, in this mode, the water flow regulating component 2 opens the second water inlet channel 12 to increase the flow rate. When external tap water enters the water inlet valve from the water inlet interface 151, one path enters the first water inlet channel 11 through the flow limiting ring 7. Due to the effect of the flow limiting ring 7, the flow rate through the first water inlet channel 11 is constant. The other path enters the second water inlet channel 12. After the two cold water paths merge, a large flow rate of water is achieved. Then, it flows through the bathroom heat exchange interface 152 to the cold water channel of the plate heat exchanger, where it exchanges heat with the hot water in the hot water channel to form warm water. Then, it flows from the outlet of the cold water channel to the outlet valve, and finally from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom for users. The hot water after heat exchange in the hot water channel flows through the heating heat exchange interface 153 to the water pump interface 154. The water pump sends the hot water back to the wall-mounted boiler for heating. At this time, the automatic water replenishment component 4 and the manual water replenishment component 3 are in the closed state, so the water replenishment function is not activated.

[0061] 2. Low-traffic mode: such as Figure 4 As shown, in this mode, the water flow regulating component 2 closes the second water inlet channel 12. When external tap water enters the water inlet valve from the water inlet interface 151, one path enters the first water inlet channel 11 through the flow limiting ring 7, and the other path enters the second water inlet channel 12. Since the second water inlet channel 12 is closed, the water flow cannot flow out of the second water inlet channel 12 and merge with the first water inlet channel. It only flows through the flow limiting ring 7 and finally flows through the bathroom heat exchange interface 152 to the cold water channel of the plate heat exchanger to exchange heat and form warm water. Due to the effect of the flow limiting ring 7, the flow rate through the first water inlet channel 11 is a constant flow rate, realizing a small flow water supply.

[0062] 3. Manual water replenishment mode: such as Figure 5 and Figure 6As shown, when the heating water circuit is short of water, the manual water replenishment component 3 is manually operated to open the first connection port 141. At this time, the second water inlet channel 12 is connected to the water replenishment channel 13 through the first connection port 141. The tap water in the second water inlet channel 12 flows into the water replenishment channel 13 through the first connection port 141 and finally reaches the water pump interface 154. Then, it is pumped to the wall-mounted boiler for heating, thus realizing manual water replenishment.

[0063] 4. Automatic water replenishment mode: such as Figure 7 and Figure 8 As shown, when the manual water replenishment component 3 is turned off, the automatic water replenishment component 4 is powered on, and the second connection port 142 is opened. At this time, the second water inlet channel 12 is connected to the water replenishment channel 13 through the second connection port 142. The tap water in the second water inlet channel 12 flows into the water replenishment channel 13 through the second connection port 142 and finally reaches the water pump interface 154. Then, it is pumped to the wall-mounted boiler for heating, thus realizing automatic water replenishment.

[0064] Therefore, the water inlet valve provided in this embodiment integrates both automatic and manual water replenishment functions in addition to the flow rate control function, ensuring both intelligence and product performance.

[0065] like Figure 2 As shown, the second water inlet channel 12 includes an inlet channel section 121, a water-increasing channel section 122, and a flow-increasing channel section 123. The inlet end of the inlet channel section 121 and the outlet end of the flow-increasing channel section 123 are respectively connected to the two ends of the first water inlet channel 11. The outlet end of the inlet channel section 121 and the inlet end of the flow-increasing channel section 123 are respectively connected to the two ends of the water-increasing channel section 122. The first water inlet channel 11, the inlet channel section 121, the water-increasing channel section 122, and the flow-increasing channel section 123 together form a ring structure. Specifically, the first water inlet channel 11 is parallel to the water-increasing channel section 122, the inlet channel section 121 is parallel to the flow-increasing channel section 123, and the first water inlet channel 11 is perpendicular to the inlet channel section 121. The first water inlet channel 11, the inlet channel section 121, the water-increasing channel section 122, and the flow-increasing channel section 123 together form a square ring structure. By rationally arranging the positions of the first water inlet channel 11 and the second water inlet channel 12, the overall structure of the water inlet valve can be simplified, the water inlet valve can be avoided from being too large, and unnecessary space occupation can be reduced.

[0066] like Figure 2As shown, in high-flow mode, the water flow regulating component 2 opens the second water inlet channel 12 to increase the flow rate. When external tap water enters the water inlet valve from the water inlet interface 151, one path enters the first water inlet channel 11 through the flow limiting ring 7, and the other path enters the second water inlet channel 12. After passing through the water inlet channel section 121, the water boosting channel section 122, and the flow boosting channel section 123 in sequence, they converge in the first water inlet channel 11 and then flow together to the bathroom heat exchange interface 152, thus realizing high-flow water supply.

[0067] In an optional embodiment, such as Figure 2 As shown, the first connecting port 141 is located axially on one end of the water-increasing channel section 122 near the inlet channel section 121, and the manual water replenishment component 3 is located on the side of the valve body 1 near the inlet end of the water-increasing channel section 122; the second connecting port 142 is located on the periphery of the water-increasing channel section 122 away from the inlet end of the inlet channel section 121, and the automatic water replenishment component 4 is located on the side of the valve body 1 away from the inlet end of the inlet channel section 121. Since the automatic water replenishment component 4 occupies a large space, this arrangement facilitates the staggered arrangement of the manual water replenishment component 3 and the automatic water replenishment component 4, avoiding interference between their structures.

[0068] Optionally, along the flow direction of tap water within the second inlet channel 12, the water flow regulating component 2 is located downstream of the manual water replenishment component 3 and the automatic water replenishment component 4. The output end of the water flow regulating component 2 is located at the intersection of the water-increasing channel section 122 and the flow-increasing channel section 123, used to connect or disconnect the water-increasing channel section 122 and the flow-increasing channel section 123, thereby opening or closing the second inlet channel 12. With this configuration, regardless of whether the water flow regulating component 2 connects the water-increasing channel section 122 and the flow-increasing channel section 123, there is always cold water in the water-increasing channel section 122. That is, whether in high-flow mode or low-flow mode, manual or automatic water replenishment can be achieved at any time, unaffected by the water flow regulating component 2.

[0069] Optionally, such as Figure 2 As shown, the water flow regulating component 2 and the automatic water replenishment component 4 are located on the same side of the valve body 1 and are arranged side by side. Since the water flow regulating component 2 also occupies a relatively large space, placing the water flow regulating component 2 and the automatic water replenishment component 4 on the same side of the valve body 1 can reduce unnecessary space occupation.

[0070] Optionally, combined Figure 2 and Figure 3The valve body 1 has a mounting base 16 for installing the water flow regulating component 2. The mounting base 16 has a first channel 161 and a second channel 162 that are adjacent to each other and connected. The first channel 161 is directly connected to the water increase channel section 122, and the second channel 162 is directly connected to the flow increase channel section 123. The output end of the water flow regulating component 2 is used to open or block the outlet end of the first channel 161 and the inlet end of the second channel 162, thereby connecting or disconnecting the water increase channel section 122 and the flow increase channel section 123.

[0071] like Figure 2 and Figure 3 As shown, in high-flow mode, the output end of the water flow regulating component 2 opens the outlet end of the first channel 161 and the inlet end of the second channel 162. The water-increasing channel section 122 is connected to the flow-increasing channel section 123 through the first channel 161 and the second channel 162. Tap water flowing from the inlet interface 151 into the second inlet channel 12 passes through the inlet channel section 121, the water-increasing channel section 122, the first channel 161, the second channel 162, and the flow-increasing channel section 123 in sequence, and then merges with the tap water in the first inlet channel 11. They then flow together to the bathroom heat exchange interface 152, achieving high-flow water supply. Figure 4 As shown, in low flow mode, the output end of the water flow regulating component 2 blocks the outlet end of the first channel 161 and the inlet end of the second channel 162, thereby isolating the first channel 161 and the second channel 162. The water-increasing channel section 122 and the flow-increasing channel section 123 cannot be connected. Therefore, the tap water in the water-increasing channel section 122 cannot continue to flow into the flow-increasing channel section 123. Water is supplied only through the first water inlet channel 11, thus achieving low flow water supply.

[0072] In this embodiment, as Figure 2 As shown, the water flow regulating component 2 includes a water-increasing solenoid valve 21 and a first sealing member 22 connected to the output end of the water-increasing solenoid valve 21. The water-increasing solenoid valve 21 is mounted on the valve body 1 and can drive the first sealing member 22 to move, so that the first sealing member 22 opens or blocks the second water inlet channel 12. The first sealing member 22 includes a sealing seat and a sealing gasket. The sealing seat is connected to the output end of the water-increasing solenoid valve 21, and the sealing gasket is fixedly installed on the lower side of the sealing seat. The sealing gasket can be made of rubber and is soft. It is used to block the outlet end of the first channel 161 and the inlet end of the second channel 162, realizing the conduction or isolation of the water-increasing channel section 122 and the flow-increasing channel section 123. The sealing seat supports the sealing gasket, thereby achieving a good sealing effect. The specific structure and working principle of the water-increasing solenoid valve 21 are existing technologies and will not be described in detail here. In another optional embodiment, the water flow regulating component 2 can also use any drive structure, such as a servo motor, that can drive its output end to move to open or close the second water inlet channel 12.

[0073] In one optional embodiment, the water-increasing solenoid valve 21 can be a normally open solenoid valve, that is, when the power is off, the water-increasing solenoid valve 21 is always in the state of opening the second water inlet channel 12. The water inlet valve is normally in the high flow mode to ensure that there is always enough flow in the system to guarantee water use. When the power is on, the water-increasing solenoid valve 21 switches to the closed state, closes the second water inlet channel 12, and the water inlet valve switches to the low flow mode.

[0074] In another optional embodiment, the water-increasing solenoid valve 21 can also be a normally closed solenoid valve. That is, when the power is off, the water-increasing solenoid valve 21 is always in the state of closing the second water inlet channel 12. The water inlet valve is normally in the low flow mode to ensure that the water at the outlet has sufficient temperature. When the power is on, the water-increasing solenoid valve 21 switches to the open state, opens the second water inlet channel 12, and the water inlet valve switches to the high flow mode.

[0075] In an optional embodiment, such as Figure 2 As shown, the automatic water replenishment component 4 includes a water replenishment solenoid valve 41 and a second sealing member 42 connected to the output end of the water replenishment solenoid valve 41. The water replenishment solenoid valve 41 is mounted on the valve body 1 and can drive the second sealing member 42 to move, so that the second sealing member 42 opens or blocks the second connection port 142. The second sealing member 42 has the same structure as the first sealing member 22, and will not be described further here. The water replenishment solenoid valve 41 can be a normally closed solenoid valve, that is, in the absence of power, the water replenishment solenoid valve 41 is always in the closed state of the second connection port 142. Only when automatic water replenishment is needed, the water replenishment solenoid valve 41 is energized and switched to the open state, opening the second connection port 142 to achieve automatic water replenishment. The specific structure and working principle of the water replenishment solenoid valve 41 are existing technologies and will not be described further here. In another optional embodiment, the automatic water replenishment component 4 can also use any drive structure, such as a servo motor, that can drive its output end to move to open or close the second connection port 142.

[0076] In an optional embodiment, such as Figure 2As shown, the manual water replenishment component 3 includes a water replenishment valve body 31 and a valve core 32. The water replenishment valve body 31 is connected to the valve body 1 and has a valve cavity that communicates with the first connecting port 141. The valve core 32 is located in the valve cavity and can move axially along the water replenishment valve body 31. The valve core 32 and the water replenishment valve body 31 can be connected by a thread. A sealing ring is provided at the end of the valve core 32 near the valve body 1. The sealing ring can block the first connecting port 141 when the valve core 32 moves toward the valve body 1. When manual water replenishment is required, the user can manually operate the valve core 32 to move the sealing ring toward the end away from the valve body 1, thereby opening the first connecting port 141 and replenishing the heating water circuit. After water replenishment is completed, the user can manually operate the valve core 32 to move the sealing ring toward the valve body 1, thereby blocking the first connecting port 141. This design makes the manual water replenishment process more flexible and controllable. The user can flexibly control the amount of water replenished as needed, avoiding excessive or insufficient water replenishment, thereby achieving the purpose of water and energy saving.

[0077] Furthermore, the manual water replenishment component 3 also includes a handwheel 33, which is coaxially fixed with the valve core 32 and rotates synchronously. By setting the handwheel 33, the user can easily rotate the valve core 32, thus improving the ease of use.

[0078] Optionally, such as Figure 1 and Figure 2 As shown, the valve body 1 consists of two parts, including a first valve body 14 and a second valve body 15. The first valve body 14 and the second valve body 15 are plugged into each other. The water flow regulating component 2, the manual water replenishment component 3, and the automatic water replenishment component 4 are all installed on the first valve body 14. The water inlet interface 151, the bathroom heat exchange interface 152, the heating heat exchange interface 153, and the water pump interface 154 are all located on the second valve body 15. The water boosting channel section 122 is opened inside the first valve body 14, and the first water inlet channel 11 is opened inside the second valve body 15. The first valve body 14 includes a first plug pipe 143 and a second plug pipe 144 that are spaced apart and adjacent to each other. The second valve body 15 includes a first receiving pipe 155 and a second receiving pipe 156 that are spaced apart and adjacent to each other. The first plug pipe 143 is sealed and plugged into the first receiving pipe 155, and the two together form the water inlet channel section 121. The second plug pipe 144 is sealed and plugged into the second receiving pipe 156, and the two together form the flow boosting channel section 123. The first valve body 14 adopts an integrated molding structure to ensure structural strength, while allowing the second water inlet channel 12 to simultaneously connect the water flow regulating component 2, the automatic water replenishment component 4, and the manual water replenishment component 3, thus optimizing the valve body structure and reducing water path channels. The second valve body 15 also adopts an integrated molding structure to ensure structural strength, and its internal first water inlet channel 11 is a straight channel, simplifying the valve body structure.

[0079] Optionally, combined Figure 5 and Figure 6The first valve body 14 also includes an outer ring branch pipe 145 sleeved around the outer periphery of the first insertion pipe 143. The first receiving pipe 155 has a stepped inner diameter, with a larger inner diameter at the end near the port. One end of the first insertion pipe 143 protrudes relative to the outer ring branch pipe 145, allowing the first insertion pipe 143 to connect with the smaller diameter section of the first receiving pipe 155. The outer ring branch pipe 145 is inserted into the larger diameter section of the first receiving pipe 155, and the inner wall of the outer ring branch pipe 145 is flush with the first insertion pipe. A first water supply chamber 131 is formed between the outer walls of 143 to reduce space occupation. A second water supply chamber 132, directly connected to the water pump interface 154, is also provided inside the second valve body 15. The second water supply chamber 132 is located beside the first water supply chamber 131. A water inlet 133, connecting the first water supply chamber 131 and the second water supply chamber 132, is opened on the side wall of the first receiving pipe 155. The first water supply chamber 131, the water inlet 133, and the second water supply chamber 132 together form a water supply channel 13. In water supply mode, water in the inlet channel section 121 flows into the first water supply chamber 131 through the first connecting port 141 or the second connecting port 142, then flows to the second water supply chamber 132 through the water inlet 133, and finally flows to the water pump interface 154. The water is then pumped to the wall-mounted boiler for heating, thus supplying water to the heating system.

[0080] In an optional embodiment, such as Figure 2 As shown, a filter screen 6 is installed inside the water inlet 151 to ensure that the water entering the heating system and bathroom system is free of large particulate impurities.

[0081] In an optional embodiment, such as Figure 2 As shown, a filter support 8 is installed inside the first water inlet channel 11 at the position where it intersects with the inlet end of the second water inlet channel 12. The filter support 8 is a cylindrical filter screen. One end of the flow-limiting ring 7 abuts against the filter support 8, and the other end of the flow-limiting ring 7 abuts against the stepped surface inside the first water inlet channel 11. The filter support 8 abuts between the flow-limiting ring 7 and the water inlet interface 151. The filter support 8 serves two purposes: first, it prevents particles from entering the solenoid valve and clogging the diaphragm, thus preventing the solenoid valve from sealing poorly; second, it fixes the flow-limiting ring 7, preventing it from being pushed backward to the water inlet interface 151, thereby limiting the overall flow rate of the incoming water.

[0082] Optionally, such as Figure 2 As shown, a flow detection component 5 is installed in the passage between the outlet end of the first water inlet channel 11 and the bathroom heat exchange interface 152. The flow detection component 5 can be an impeller with a Hall sensor. After the water flows out of the first water inlet channel 11, it impacts the impeller, and the Hall sensor converts the water flow into an electrical signal output to detect the water flow rate entering the bathroom water circuit, which facilitates precise flow control.

[0083] The specific working process of the water supply valve provided in this embodiment is as follows:

[0084] 1. High-traffic mode: such as Figure 2 and Figure 3 As shown, in this mode, the water-increasing solenoid valve 21 drives the first sealing member 22 to move, opening the outlet end of the first channel 161 and the inlet end of the second channel 162, thus connecting the water-increasing channel section 122 and the flow-increasing channel section 123. When external tap water enters the inlet valve from the inlet interface 151, one path enters the first inlet channel 11 through the flow-limiting ring 7. Due to the effect of the flow-limiting ring 7, the flow rate through the first inlet channel 11 is constant. The other path enters the second inlet channel 12, passing through the inlet channel section 121, the water-increasing channel section 122, and the flow-increasing channel section 123 in sequence before entering the first... The water flows into the inlet channel 11, achieving a large flow rate of water supply. Then, it flows through the bathroom heat exchange interface 152 to the cold water channel of the plate heat exchanger, where it exchanges heat with the hot water in the hot water channel to form warm water. Then, it flows from the outlet of the cold water channel to the outlet valve, and finally from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom for users. The hot water after heat exchange in the hot water channel flows through the heating heat exchange interface 153 to the water pump interface 154. The water pump sends the hot water back to the wall-mounted boiler for heating. At this time, the automatic water replenishment component 4 and the manual water replenishment component 3 are in the closed state, so the water replenishment function is not activated.

[0085] 2. Low-traffic mode: such as Figure 4 As shown, in this mode, the water-increasing solenoid valve 21 drives the first sealing member 22 to move, closing the outlet end of the first channel 161 and the inlet end of the second channel 162, thus isolating the water-increasing channel section 122 and the flow-increasing channel section 123. When external tap water enters the inlet valve from the inlet interface 151, one path enters the first inlet channel 11 through the flow-limiting ring 7, and the other path enters the second inlet channel 12. Since the water-increasing channel section 122 and the flow-increasing channel section 123 cannot be connected, the tap water in the water-increasing channel section 122 cannot merge with the first inlet channel after passing through the flow-increasing channel section 123. It is only supplied through the first inlet channel 11 and finally flows through the bathroom heat exchange interface 152 to the cold water channel of the plate heat exchanger for heat exchange to form warm water. Due to the effect of the flow-limiting ring 7, the flow rate through the first inlet channel 11 is a constant flow rate, realizing a small flow rate water supply.

[0086] 3. Manual water replenishment mode: such as Figure 5 and Figure 6As shown, when the heating water circuit is short of water, the user can operate the handwheel 33 of the manual water replenishment component 3 to rotate the valve core 32 and drive the sealing ring to move towards the end away from the valve body 1, thereby opening the first connection port 141. At this time, the water inlet channel section 121 of the second water inlet channel 12 is connected to the water replenishment channel 13 through the first connection port 141. The tap water in the water inlet channel section 121 flows into the first water replenishment chamber 131 through the first connection port 141, and then flows to the second water replenishment chamber 132 through the water replenishment port 133. Finally, it flows to the water pump interface 154 and is pumped to the wall-mounted boiler for heating, thus realizing manual water replenishment.

[0087] 4. Automatic water replenishment mode: such as Figure 7 and Figure 8 As shown, when the manual water replenishment component 3 is turned off, the water replenishment solenoid valve 41 is energized. The water replenishment solenoid valve 41 drives the second sealing component 42 to move, opening the second connecting port 142. At this time, the water increase channel section 122 of the second water inlet channel 12 is connected to the water replenishment channel 13 through the second connecting port 142. The tap water in the water increase channel section 122 flows into the first water replenishment chamber 131 through the second connecting port 142, then flows to the second water replenishment chamber 132 through the water replenishment port 133, and finally flows to the water pump interface 154. The water is then pumped to the wall-mounted boiler for heating, thus achieving automatic water replenishment.

[0088] This embodiment also provides a water circuit module, including a plate heat exchanger, an outlet valve, and the aforementioned inlet valve. The plate heat exchanger is connected between the outlet valve and the inlet valve. In heating mode, the wall-hung boiler supplies hot water to the heating pipes through the outlet valve, and then the water is pumped back to the wall-hung boiler, forming a medium circulation. At this time, the hot water does not pass through the plate heat exchanger. In bathroom mode, the hot water in the wall-hung boiler flows to the hot water channel of the plate heat exchanger through the outlet valve, and external cold water flows to the cold water channel of the plate heat exchanger through the inlet valve. Thus, the cold water in the cold water channel exchanges heat with the hot water in the hot water channel to form warm water, which flows from the bathroom water outlet of the outlet valve to the bathroom pipes to supply water for the bathroom for user use. This part is prior art and will not be described in detail here.

[0089] The water circuit module provided in this embodiment, by setting the aforementioned inlet valve, integrates not only the flow rate control function but also the functions of automatic and manual water replenishment, ensuring both intelligence and product performance.

[0090] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water inlet valve, characterized in that, include: The valve body (1) is provided with a water inlet (151), a bathroom heat exchange interface (152) and a water pump interface (154). The valve body (1) is provided with a first water inlet channel (11), a second water inlet channel (12) and a water replenishment channel (13). The water inlet (151) and the bathroom heat exchange interface (152) are normally connected through the first water inlet channel (11) and selectively connected through the second water inlet channel (12). The water replenishment channel (13) is connected to the water pump interface (154). A water flow regulating component (2) is disposed on the valve body (1), and the output end of the water flow regulating component (2) can open or close the second water inlet channel (12); The water replenishment component has a communication port on the inner wall of the second water inlet channel (12) for connecting the second water inlet channel (12) and the water replenishment channel (13). One end of the water replenishment component extends into the valve body (1) and can selectively block the communication port.

2. The inlet valve according to claim 1, characterized in that, The water replenishment component includes an automatic water replenishment component (4), and the communication port includes a second communication port (142). The output end of the automatic water replenishment component (4) extends into the valve body (1) and can selectively block the second communication port (142).

3. The inlet valve according to claim 2, characterized in that, The water replenishment component also includes a manual water replenishment component (3), and the connection port also includes a first connection port (141). The first connection port (141) and the second connection port (142) are independent of each other. One end of the manual water replenishment component (3) extends into the valve body (1) and can selectively block the first connection port (141).

4. The inlet valve according to claim 3, characterized in that, The second water inlet channel (12) includes a water inlet channel section (121), a water-increasing channel section (122), and a flow-increasing channel section (123). The inlet end of the water inlet channel section (121) and the outlet end of the flow-increasing channel section (123) are respectively connected to the two ends of the first water inlet channel (11). The outlet end of the water inlet channel section (121) and the inlet end of the flow-increasing channel section (123) are respectively connected to the two ends of the water-increasing channel section (122). The first water inlet channel (11), the water inlet channel section (121), the water-increasing channel section (122), and the flow-increasing channel section (123) together form a ring structure.

5. The inlet valve according to claim 4, characterized in that, The first connecting port (141) is located on the axial side of the water-increasing channel section (122) near one end of the water inlet channel section (121), and the manual water replenishment component (3) is located on the side of the valve body (1) near the inlet end of the water-increasing channel section (122); the second connecting port (142) is located on the periphery of the water-increasing channel section (122) away from the inlet end of the water inlet channel section (121), and the automatic water replenishment component (4) is located on the side of the valve body (1) away from the inlet end of the water inlet channel section (121).

6. The inlet valve according to claim 4, characterized in that, The water flow regulating component (2) is located downstream of the manual water replenishment component (3) and the automatic water replenishment component (4). The output end of the water flow regulating component (2) is located at the intersection of the water increase channel section (122) and the flow increase channel section (123), and is used to connect or disconnect the water increase channel section (122) and the flow increase channel section (123).

7. The inlet valve according to claim 6, characterized in that, The water flow regulating component (2) and the automatic water replenishment component (4) are located on the same side of the valve body (1) and are arranged side by side.

8. The inlet valve according to claim 4, characterized in that, The valve body (1) includes a first valve body (14) and a second valve body (15). The water-increasing channel section (122) is opened in the first valve body (14), and the first water inlet channel (11) is opened in the second valve body (15). The first valve body (14) includes a first insertion pipe (143) and a second insertion pipe (144) arranged at intervals. The second valve body (15) includes a first receiving pipe (155) and a second receiving pipe (156) arranged at intervals. The first insertion pipe (143) is inserted into the first receiving pipe (155), and the two together form the water inlet channel section (121). The second insertion pipe (144) is inserted into the second receiving pipe (156), and the two together form the flow-increasing channel section (123).

9. The inlet valve according to claim 8, characterized in that, The first valve body (14) further includes an outer ring branch pipe (145) sleeved around the first insertion pipe (143). The outer ring branch pipe (145) is inserted into the first receiving pipe (155), and a first water supply cavity (131) is formed between the inner wall of the outer ring branch pipe (145) and the outer wall of the first insertion pipe (143). The second valve body (15) is also provided with a second water supply cavity (132) that is directly connected to the water pump interface (154). A water supply port (133) connecting the first water supply cavity (131) and the second water supply cavity (132) is opened on the side wall of the first receiving pipe (155). The first water supply cavity (131), the water supply port (133) and the second water supply cavity (132) together form the water supply channel (13).

10. The inlet valve according to any one of claims 2 to 9, characterized in that, The water flow regulating component (2) includes a water-increasing solenoid valve (21) and a first sealing member (22) connected to the output end of the water-increasing solenoid valve (21). The water-increasing solenoid valve (21) is mounted on the valve body (1) and can drive the first sealing member (22) to move, so that the first sealing member (22) opens or blocks the second water inlet channel (12); and / or The automatic water replenishment component (4) includes a water replenishment solenoid valve (41) and a second sealing member (42) connected to the output end of the water replenishment solenoid valve (41). The water replenishment solenoid valve (41) is installed on the valve body (1) and can drive the second sealing member (42) to move so that the second sealing member (42) opens or blocks the second communication port (142).

11. The inlet valve according to any one of claims 1 to 9, characterized in that, A filter screen (6) is installed inside the water inlet (151).

12. The inlet valve according to any one of claims 1 to 9, characterized in that, A flow-limiting ring (7) is provided inside the first water inlet channel (11).

13. The inlet valve according to claim 12, characterized in that, A filter bracket (8) is provided in the first water inlet channel (11) at the position where it intersects with the inlet end of the second water inlet channel (12). One end of the flow limiting ring (7) abuts against the filter bracket (8), and the other end of the flow limiting ring (7) abuts against the step surface inside the first water inlet channel (11).

14. The inlet valve according to any one of claims 1 to 9, characterized in that, A flow detection component (5) is provided on the passage between the outlet end of the first water inlet channel (11) and the bathroom heat exchange interface (152).

15. A waterway module, characterized in that, It includes a plate heat exchanger, an outlet valve, and an inlet valve as described in any one of claims 1 to 14, wherein the plate heat exchanger is connected between the outlet valve and the inlet valve.

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