Water inlet valve and wall-hanging stove waterway system

Abstract

The utility model discloses a water inlet valve and a wall-hanging stove waterway system, and belongs to the technical field of household appliances. The water inlet valve comprises a valve body, a flow adjusting assembly and a circulating water pump, the valve body is provided with a water inlet connector, a water outlet connector, a heat exchange inflow connector and a water inlet and outlet channel, the water inlet connector is communicated with an external water source, an inlet of the water inlet and outlet channel is communicated with the water inlet connector, and an outlet of the water inlet and outlet channel is communicated with the heat exchange inflow connector and the water outlet connector. The heat exchange inflow connector is connected with the heat exchange structure. The flow adjusting assembly is configured to adjust the water flow in the water inlet and outlet channel. The circulating water pump is installed on the valve body and located between the heat exchange inflow connector and the water outlet connector, the circulating water pump is configured to pump water at the water outlet connector back into the water inlet and outlet channel, and then the water flows into the heat exchange structure through the heat exchange inflow connector to be heated. According to the water inlet valve, the water inlet flow can be adjusted, and instant supply of domestic hot water of the wall-hanging stove water way system can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, concretely relates to a water inlet valve and wall -hanging stove waterway system. BACKGROUND

[0002] The wall-hanging stove waterway system is a water heater taking natural gas as energy, which has a powerful home central heating function, can meet the heating demand of multi-room, and can provide domestic water for household bathing, kitchen and other places. The water inlet valve and the water outlet valve are both indispensable structures in the wall-hanging stove waterway system. Specifically, the tap water in the water supply channel entering the heat exchange structure through the water inlet valve can exchange heat with the hot water in the heat exchange channel of the heat exchange structure, so that the temperature of the tap water is raised, and the tap water flows out from the outlet of the bathroom channel of the water outlet valve to provide domestic hot water for the user.

[0003] However, the wall-hanging stove waterway system in the related art has the following problems when in use:

[0004] 1) After the user closes the water valve after using hot water, the water in the bathroom channel of the water outlet valve will naturally cool down, so that the cold water in the bathroom channel will be discharged first when the user takes water next time, so that the hot water cannot be supplied in real time.

[0005] 2) The water inlet valve is mostly constant flow, that is, the flow rate cannot be adjusted during use, but as the weather changes, the water temperature also changes, when the water temperature is high, the same gas is enough to heat the water to a very high temperature. For example, the wall-hanging stove with a heat power of 20KW can only heat 8L / min of water flow from 5℃ to 40℃, when the outside temperature is high in summer, the cold water temperature will reach 25℃, if the water flow is still limited to 8L / min, the water temperature will rise quickly, and even the temperature will exceed 40℃, which will scald the user and affect the user's experience.

[0006] This part provides background information related to the present application, which may not be prior art. UTILITY MODEL CONTENT

[0007] The utility model aims at solving or at least alleviating part or all of the above problems. To this end, the utility model aims at providing a water inlet valve and wall-hanging stove waterway system, which can adjust the size of the water inlet flow to meet different temperature requirements, and can realize instant supply of domestic hot water of the wall-hanging stove waterway system, and improve the user's experience.

[0008] In order to achieve the above-mentioned target, the utility model adopts the following technical scheme:

[0009] A water inlet valve, comprising:

[0010] A valve body has a water inlet interface, a water outlet interface, a heat exchange inlet interface, and a water inlet-outlet channel, the water inlet interface is connected with an external water source, an inlet of the water inlet-outlet channel is connected with the water inlet interface, an outlet of the water inlet-outlet channel is connected with the heat exchange inlet interface and the water outlet interface, and the heat exchange inlet interface is connected with a heat exchange structure;

[0011] A flow regulating assembly is configured to regulate water flow in the water inlet-outlet channel.

[0012] A circulating water pump is installed on the valve body and located between the heat exchange inlet interface and the water outlet interface, and is configured to pump water at the water outlet interface back into the water inlet-outlet channel and then to the heat exchange structure through the heat exchange inlet interface for heating.

[0013] As a preferred scheme of the water inlet valve provided by the utility model, the water inlet-outlet channel comprises a water inlet channel, a water outlet channel, and a first communication port capable of communicating the water inlet channel and the water outlet channel, an inlet of the water inlet channel is connected with the water inlet interface, and an outlet of the water outlet channel is connected with the heat exchange inlet interface and the water outlet interface.

[0014] As a preferred scheme of the water inlet valve provided by the utility model, the valve body comprises:

[0015] A first valve body is provided with a mounting interface, and the water inlet interface, the heat exchange inlet interface, and the water outlet interface are all arranged on the first valve body.

[0016] A second valve body comprises a water inlet-outlet branch pipe, the water inlet-outlet branch pipe is inserted into the mounting interface, and a partition is arranged in the water inlet-outlet branch pipe along an axial direction of the water inlet-outlet branch pipe to divide an inner hole channel of the water inlet-outlet branch pipe into the water inlet channel and the water outlet channel.

[0017] As a preferred scheme of the water inlet valve provided by the utility model, a cross-sectional area of the water inlet channel is S1, a cross-sectional area of the water outlet channel is S2, and S1 / S2 < 1.

[0018] As a preferred scheme of the water inlet valve provided by the utility model, the water inlet-outlet channel further comprises a first water supplement channel arranged in the valve body and independent of the water inlet channel, one end of the first water supplement channel is connected with the water inlet interface, and the other end of the first water supplement channel is capable of being connected with the water outlet channel through the first communication port.

[0019] As a preferred scheme of the water inlet valve provided by the utility model, a cross-sectional area of the first water supplement channel is S0, a cross-sectional area of the water inlet channel is S1, and a cross-sectional area of the water outlet channel is S2, and (S0+S1) / S2 < 1.

[0020] As a preferred scheme of the water inlet valve provided by the utility model, the water inlet valve further comprises a manual water supplement valve, the valve main body further has a second water supplement channel, a second communication opening and a water pump interface, one end of the second water supplement channel is communicated with the first water supplement channel through the second communication opening, and the other end of the second water supplement channel is communicated with the water pump interface; the manual water supplement valve is adjustably installed on the valve main body and can selectively block the second communication opening.

[0021] As a preferred scheme of the water inlet valve provided by the utility model, the flow regulating assembly comprises a servo motor, an occlusion part is arranged at the output end of the servo motor, the servo motor is arranged on the valve main body, the occlusion part is located in the valve main body, and the servo motor is configured to drive the occlusion part to be close to or away from the first communication opening so as to adjust the spacing between the occlusion part and the first communication opening.

[0022] As a preferred scheme of the water inlet valve provided by the utility model, the servo motor comprises a motor main body and an adjusting valve core connected with the motor main body, and the side wall part of the adjusting valve core is convex to form the occlusion part.

[0023] As a preferred scheme of the water inlet valve provided by the utility model, a first mounting opening for mounting the flow regulating assembly is further arranged on the valve main body, the flow regulating assembly further comprises a supporting sleeve, the supporting sleeve is sealingly connected to the first mounting opening, the adjusting valve core is arranged in the supporting sleeve and is threadedly connected with the supporting sleeve.

[0024] As a preferred scheme of the water inlet valve provided by the utility model, a flow detection assembly is arranged between the water outlet interface and the heat exchange inflow interface, the flow detection assembly comprises an impeller and a flow sensor, an impeller cavity is arranged in the valve main body, the impeller cavity is respectively communicated with the water inlet and outlet channel and the heat exchange inflow interface, the impeller is arranged in the impeller cavity, and the flow sensor is signal-connected with the impeller.

[0025] As a preferred scheme of the water inlet valve provided by the utility model, the flow regulating assembly and the circulating water pump are located on the front side of the valve main body.

[0026] The utility model further provides a wall-hanging stove waterway system, which comprises:

[0027] The heat exchange structure comprises a heat exchange channel and a water supply channel which are matched in heat exchange;

[0028] The water outlet valve has a bathroom channel and a heat exchange water outlet flow channel which are communicated, and the heat exchange water outlet flow channel is communicated with the outlet of the water supply channel;

[0029] The water inlet valve as described above, a water outlet interface of the water inlet valve is communicated with an inlet of the bathroom channel, and a heat exchange inlet interface of the water inlet valve is communicated with an inlet of the water supply channel.

[0030] The water inlet valve has the advantages that:

[0031] The water inlet valve has the advantages that: the flow adjusting assembly is arranged, and an inlet and outlet water channel capable of being communicated with the water inlet interface and the heat exchange inlet interface is arranged in the valve body, and the flow adjusting assembly can adjust the water flow in the inlet and outlet water channel, so that the water flow in the water supply channel flowing from the heat exchange inlet interface to the heat exchange structure can be flexibly adjusted, different water temperature requirements can be met, and the use experience of the user is improved; the use of the flow limiting ring can be omitted, so that the material cost is reduced to a certain extent; the circulating water pump is arranged, the circulating water pump can pump the water at the water outlet interface back to the inlet and outlet water channel, and then the water flows to the heat exchange structure through the heat exchange inlet interface for heating, so that the water temperature at the outlet of the water using device connected with the water outlet interface is always within the preset temperature range, the instant supply of hot water of the water using device is realized, and the use experience of the user is improved.

[0032] The water inlet valve has the advantages that: the water inlet valve as described above, a water outlet interface of the water inlet valve is communicated with an inlet of the bathroom channel, and a heat exchange inlet interface of the water inlet valve is communicated with an inlet of the water supply channel. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the contents of the embodiments of the present application and the drawings by those skilled in the art without any creative effort.

[0034] Figure 1 is a water route schematic diagram of the wall-hanging stove water route system provided by the embodiments of the present application;

[0035] Figure 2 is a first structure schematic diagram of the water inlet valve provided by the embodiments of the present application;

[0036] Figure 3 is a cross-sectional structure schematic diagram of the water inlet valve provided by the embodiments of the present application;

[0037] Figure 4 is a structure schematic diagram of the second valve body provided by the embodiments of the present application;

[0038] Figure 5is a cross-sectional structure schematic view of the second valve body provided by the embodiment of the utility model;

[0039] Figure 6 is a cross-sectional structure schematic view of the first valve body provided by the embodiment of the utility model;

[0040] Figure 7 is a cross-sectional structure schematic view of the flow regulating assembly provided by the embodiment of the utility model;

[0041] Figure 8 is the second structure schematic view of the water inlet valve provided by the embodiment of the utility model.

[0042] Reference signs:

[0043] 100, water inlet valve;

[0044] 1, valve main body;

[0045] 11, first valve body; 110, second mounting port; 111, water inlet interface; 112, heat exchange inflow interface; 113, heat exchange outflow interface; 114, water pump interface; 115, water replenishing interface; 116, mounting interface; 117, communication water cavity; 1171, water inlet cavity; 1172, water outlet cavity; 118, impeller cavity; 119, water outlet interface;

[0046] 12, second valve body; 121, water replenishing branch pipe; 1211, first water replenishing channel; 122, water inlet and outlet branch pipe; 1221, water inlet channel; 1222, water outlet channel; 1223, partition; 123, mounting branch pipe; 124, outer ring branch pipe; 1240, second communication port; 1241, second water replenishing channel; 125, main valve part; 1251, first communication port; 1252, guide groove; 1253, first mounting port;

[0047] 2, flow regulating assembly; 21, servo motor; 211, motor main body; 212, regulating valve core; 2121, plugging part; 22, support sleeve; 221, transmission cooperation part; 222, inner sealing part; 231, first sealing element; 232, second sealing element;

[0048] 3, manual water replenishing valve;

[0049] 41, impeller; 42, flow sensor;

[0050] 5, circulating water pump;

[0051] 200, combustion chamber; 201, hot water outlet; 202, cold water inlet;

[0052] 300, heat exchange structure; 310, heat exchange channel; 320, water supply channel;

[0053] 400, water outlet valve; 401, hot water inlet; 402, heating passage; 403, heat exchange water inlet flow channel; 404, heat exchange water outlet flow channel; 405, bathroom passage;

[0054] 500, heating system;

[0055] 600, connecting pipeline. DETAILED DESCRIPTION

[0056] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0057] In the present application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0058] In the present application, the term "and / or" is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects are in a "and / or" relationship.

[0059] In the present application, the terms "connection", "combination", "coupling" and "installation" can be direct connection, combination, coupling or installation, or indirect connection, combination, coupling or installation. Among them, the direct connection means that two parts or components are connected together without setting intermediate parts, and the indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0060] In the present application, those of ordinary skill in the art will understand that relative terms used in connection with a quantity or a condition (for example, "about", "approximately", "substantially" and the like) include the stated value and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with a measurement of a particular value, the tolerance caused by manufacturing, assembly, use, and the like associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. The relative terms can refer to a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value plus or minus. The numerical value without the relative term should also be disclosed as a particular value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain number of degrees (for example, 1 degree, 5 degrees, 10 degrees or more) plus or minus the indicated angle.

[0061] In the present application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0062] In the present application, the terms "up", "down", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it should also be understood in the context that when referring to one element connected to another element "up" or "down", it can not only be directly connected to another element "up" or "down", but also indirectly connected to another element "up" or "down" through an intermediate element. It should also be understood that the terms "up", "down", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the lower front side and the lower back side, etc.

[0063] Figure 1 The waterway structure diagram of the wall-hanging stove waterway system provided by the embodiment is shown. As shown in Figure 1As shown, the embodiment provides a wall-hanging stove water system, which comprises a combustion chamber 200, a heat exchange structure 300, a water inlet valve 100 and a water outlet valve 400. The combustion chamber 200 can heat water therein. The heat exchange structure 300 comprises a heat exchange channel 310 and a water supply channel 320 in heat exchange cooperation. The water inlet valve 100 comprises a valve main body 1, which has a water inlet interface 111, a heat exchange inlet interface 112, a heat exchange outlet interface 113 and a water pump interface 114. The water inlet interface 111 is connected to an external water source. The heat exchange outlet interface 113 is connected to the water pump interface 114. The heat exchange inlet interface 112 is connected to the water inlet interface 111. The heat exchange inlet interface 112 and the heat exchange outlet interface 113 are connected to the inlet of the water supply channel 320 and the outlet of the heat exchange channel 310, respectively. The water pump interface 114 is connected to a cold water inlet 202 of the combustion chamber 200 through a water supply pump (not shown in the figure). The water outlet valve 400 has a hot water inlet 401, a heating channel 402, a heat exchange inlet flow channel 403, a heat exchange outlet flow channel 404 and a bathroom channel 405. The hot water inlet 401 is connected to a hot water outlet 201 of the combustion chamber 200. The hot water inlet 401 can selectively communicate with the heating channel 402 or the heat exchange inlet flow channel 403. The heat exchange inlet flow channel 403 and the heat exchange outlet flow channel 404 are connected to the inlet of the heat exchange channel 310 and the outlet of the water supply channel 320, respectively. The heat exchange outlet flow channel 404 is connected to the bathroom channel 405.

[0064] In operation, when the hot water inlet 401 is connected to the heating channel 402, hot water heated by the combustion chamber 200 can flow into the heating system 500 through the hot water outlet 201, the connecting pipeline 600, the hot water inlet 401 and the heating channel 402, so as to provide heating demand for users. Water in the heating system 500 after heat exchange with the outside can flow into the combustion chamber 200 through the water inlet valve 100 to be heated again, thereby forming a heating water circulation loop. When the hot water inlet 401 is connected to the heat exchange inlet flow channel 403, hot water heated by the combustion chamber 200 can flow into the heat exchange channel 310 through the hot water outlet 201, the connecting pipeline 600, the hot water inlet 401 and the heat exchange inlet flow channel 403, and then flow into the heat exchange outlet interface 113 of the water inlet valve 100 after heat exchange with water in the water supply channel 320, and then flow back to the combustion chamber 200 through the water pump interface 114 to be heated again, thereby forming a heat exchange circulation loop. Water in the external water source can flow into the water supply channel 320 of the heat exchange structure 300 through the water inlet interface 111 and the heat exchange inlet interface 112, and then flow into the bathroom system through the heat exchange outlet flow channel 404 of the water outlet valve 400 and the bathroom channel 405 after heat exchange with water in the heat exchange channel 310, so as to provide domestic water for users.

[0065] It needs to be explained that the heating system 500 specifically refers to the terminal heat dissipation components such as radiators, floor heating pipes or fan coil units, and the water heated in the combustion chamber 200 can be pumped to the above-mentioned terminal heat dissipation components through the water outlet valve 400, and the heat is dissipated to the indoor air in the form of heat dissipation, thereby increasing the indoor environment temperature to meet the heating needs of the user. The bathroom system specifically refers to a water device for users to perform shower, washing and other operations. Therefore, the heating system 500 and the bathroom system are relatively mature technologies in the art, and the specific structure of the heating system 500 and the bathroom system will not be described herein.

[0066] The material of the connecting pipeline 600 is not limited in the embodiment, which can be made of red copper pipe, corrugated pipe, stainless steel pipe or plastic pipe. It also needs to be explained that the combustion chamber 200, the heat exchange structure 300 and the water outlet valve 400 are relatively mature technologies in the art, and the specific structure of the combustion chamber 200, the heat exchange structure 300 and the water outlet valve 400 will not be described herein.

[0067] However, the wall-mounted stove water system in the related art has the following problems when in use: 1) After the user closes the water valve after using hot water, the water in the bathroom channel of the water outlet valve will naturally cool down, so that the cold water in the bathroom channel will be discharged first when the user takes water next time, so that the hot water cannot be supplied in real time; 2) The water inlet valve is mostly constant flow, that is, the flow cannot be adjusted during use, but as the weather changes, the water temperature also changes, when the water temperature is high, the same gas is enough to heat the water to a very high temperature. For example, the wall-mounted stove with a heat power of 20KW can only heat 8L / min of water flow from 5℃ to 40℃, when the outside temperature is high in summer, the cold water temperature will reach 25℃, if the water flow is still limited to 8L / min, the water temperature will rise very quickly, and even the temperature will exceed 40℃, which will scald the user and affect the user's experience.

[0068] To solve the above problems, the embodiment also provides a water inlet valve 100, which can adjust the size of the water inlet flow to meet different temperature needs, and can realize instant supply of domestic hot water of the wall-mounted stove water system, and improve the user's experience. The specific structure of the water inlet valve 100 provided in the embodiment will be described in detail below. Figures 2-8 The specific structure of the water inlet valve 100 provided in the embodiment will be described in detail below.

[0069] Figure 2 A first structure schematic diagram of the water inlet valve 100 provided in the embodiment is shown. Figure 2 A cross-sectional structure schematic diagram of the water inlet valve 100 provided in the embodiment is shown. As shown in Figures 1-2As shown, the water inlet valve 100 provided by the embodiment includes a valve body 1, a flow regulating assembly 2, and a circulating water pump 5. The valve body 1 further has a water outlet interface 119 and a water inlet and outlet passage. The inlet of the water inlet and outlet passage is connected to the water inlet interface 111, and the outlet of the water inlet and outlet passage is connected to the heat exchange inlet interface 112 and the water outlet interface 119. The flow regulating assembly 2 is configured to regulate the water flow in the water inlet and outlet passage. The circulating water pump 5 is installed on the valve body 1 and located between the heat exchange inlet interface 112 and the water outlet interface 119. The circulating water pump 5 is configured to pump the water at the water outlet interface 119 back to the water inlet and outlet passage and then to the heat exchange structure 300 through the heat exchange inlet interface 112 for heating.

[0070] The water inlet valve 100 provided by the embodiment sets the flow regulating assembly 2 and opens the water inlet and outlet passage in the valve body 1, which can be connected to the water inlet interface 111 and the heat exchange inlet interface 112. The flow regulating assembly 2 can regulate the water flow in the water inlet and outlet passage, thereby flexibly regulating the water flow in the water supply passage 320 from the heat exchange inlet interface 112 to the heat exchange structure 300 to meet different water temperature requirements and improve the user experience. The design can also omit the use of the flow limiting ring to reduce the material cost to some extent. By setting the circulating water pump 5, the circulating water pump 5 can pump the water at the water outlet interface 119 back to the water inlet and outlet passage and then to the heat exchange structure 300 through the heat exchange inlet interface 112 for heating, so as to ensure that the water temperature at the outlet of the water using device connected to the water outlet interface 119 is always within the preset temperature range, thereby realizing the instant supply of hot water of the water using device and improving the user experience.

[0071] It should be explained that when the water inlet valve 100 is applied to the wall-mounted stove water system, the water using device is specifically a water outlet valve 400, and the water outlet interface 119 is used to be connected to the inlet of the bathroom passage 405 of the water outlet valve 400 to provide the required cold water to the bathroom passage 405. One end of the heat exchange water outlet flow channel 404 of the water outlet valve 400 is connected to the outlet of the water supply passage 320, and the other end of the heat exchange water outlet flow channel 404 is connected to the bathroom passage 405. The cold water flowing from the water outlet interface 119 of the water inlet valve 100 to the bathroom passage 405 and the hot water flowing from the heat exchange water outlet flow channel 404 to the bathroom passage 405 can be mixed and then flow from the outlet of the bathroom passage 405 for the user to use. When the user closes the water valve after using hot water, the water in the bathroom passage 405 will naturally cool down. When the water in the bathroom passage 405 falls below the preset temperature, the circulating water pump 5 is started to make the water in the bathroom passage 405 flow back to the water inlet and outlet passage through the water outlet interface 119 and then flow to the water supply passage 320 through the heat exchange inlet interface 112 to be reheated. The heated water can also flow from the outlet of the water supply passage 320 to the bathroom passage 405 through the heat exchange water outlet flow channel 404 for the user to use.

[0072] Further, the water inlet and outlet passage includes a water inlet passage 1221, a water outlet passage 1222 and a first communication port 1251 capable of communicating the water inlet passage 1221 and the water outlet passage 1222, the inlet of the water inlet passage 1221 is communicated with the water inlet interface 111, and the outlet of the water outlet passage 1222 is communicated with the heat exchange inlet interface 112 and the water outlet interface 119; the flow regulating assembly 2 includes a servo motor 21, the output end of the servo motor 21 is provided with a blocking part 2121, the servo motor 21 is arranged on the valve body 1, and the blocking part 2121 is located in the valve body 1, and the servo motor 21 is configured to drive the blocking part 2121 to be close to or away from the first communication port 1251, so as to adjust the spacing between the blocking part 2121 and the first communication port 1251. The servo motor 21 has the advantages of high precision, stable operation, high reliability and easy maintenance, and can realize accurate regulation of the water outlet flow in the water outlet passage 1222.

[0073] In actual use, the servo motor 21 can drive the blocking part 2121 to move between the first position and the second position. When the blocking part 2121 is located at the first position, the outer contour of the blocking part 2121 can completely cover the first communication port 1251, so that the minimum water flow through the first communication port 1251 can be close to 0, thereby increasing the adjustment interval of the water flow; when the blocking part 2121 is located at the second position, the spacing between the blocking part 2121 and the first communication port 1251 is maximum, so that the water flow through the first communication port 1251 is maximum. In this embodiment, the servo motor 21 can drive the blocking part 2121 to move to any position between the first position and the second position, so that the water flow through the first communication port 1251 is adjusted between the minimum value and the maximum value. The maximum spacing between the blocking part 2121 and the first communication port 1251 is not limited in this embodiment, and the designer can adaptively adjust it according to the model and heat exchange efficiency of the wall-mounted stove.

[0074] Figure 4 The structure schematic diagram of the second valve body 12 provided by this embodiment is shown. Figure 5 The structure schematic diagram of the second valve body 12 provided by this embodiment is shown. Figure 6 The structure schematic diagram of the first valve body 11 provided by this embodiment is shown. Figures 4-6 And combined with Figure 3As shown, the valve body 1 comprises a first valve body 11 and a second valve body 12, the first valve body 11 is provided with a mounting interface 116, and the water inlet interface 111, the heat exchange inlet interface 112 and the water outlet interface 119 are all arranged on the first valve body 11; the second valve body 12 comprises an inlet and outlet water branch pipe 122, the inlet and outlet water branch pipe 122 is inserted into the mounting interface 116, and the inlet and outlet water branch pipe 122 is provided with a partition 1223 along the axial direction thereof to separate the inner hole channel of the inlet and outlet water branch pipe 122 into a water inlet channel 1221 and a water outlet channel 1222. By arranging the partition 1223 in the inlet and outlet water branch pipe 122, the effect of forming the spaced water inlet channel 1221 and water outlet channel 1222 in one branch pipe can be achieved, the structure is compact, and the volume of the entire water inlet valve 100 can be reduced to a certain extent.

[0075] Specifically, the first valve body 11 is further provided with a communication water cavity 117, the communication water cavity 117 is in communication with the mounting interface 116, the inlet and outlet water branch pipe 122 is inserted into the mounting interface 116 and extends into the communication water cavity 117, and the inlet and outlet water branch pipe 122 separates the communication water cavity 117 into a water inlet cavity 1171 and a water outlet cavity 1172, the water inlet cavity 1171 is in communication with the water inlet interface 111 and the water inlet channel 1221, and the water outlet cavity 1172 is in communication with the water outlet channel 1222, the heat exchange inlet interface 112 and the water outlet interface 119. After the external cold water flows into the water inlet interface 111, it flows to the water inlet channel 1221 through the water inlet cavity 1171, and then flows to the water outlet cavity 1172 from the water outlet channel 1222, and then flows to the heat exchange inlet interface 112 and / or the water outlet interface 119 from the water outlet cavity 1172 as needed.

[0076] Optionally, the cross-sectional area of the water inlet channel 1221 is S1, and the cross-sectional area of the water outlet channel 1222 is S2, wherein S1 / S2<1. That is, the water flow path of the water inlet channel 1221 is smaller than that of the water outlet channel 1222, so as to reduce the water resistance in the water outlet channel 1222.

[0077] Continuing as shown in Figure 2 and Figure 3 The inlet and outlet water channels further comprise a first water supplement channel 1211 arranged in the valve body 1 and independent of the water inlet channel 1221, one end of the first water supplement channel 1211 is in communication with the water inlet interface 111, and the other end of the first water supplement channel 1211 can be in communication with the water outlet channel 1222 through a first communication port 1251. By arranging the first water supplement channel 1211, the water inlet flow at the same node can be increased, thereby improving the adjustment efficiency of the water inlet flow.

[0078] Specifically, as shown in Figure 3As shown, the external cold water flows into the water inlet interface 111 and is divided into two paths, one of which flows to the first water supplement channel 1211, and the other of which flows to the water inlet channel 1221. When the blocking part 2121 is attached to the first communication port 1251, the water in the first water supplement channel 1211 and the water inlet channel 1221 cannot flow into the water outlet channel 1222 through the first communication port 1251; when the servo motor 21 is started to drive the blocking part 2121 away from the first communication port 1251, the cold water in the first water supplement channel 1211 and the cold water in the water inlet channel 1221 can be combined in the water outlet channel 1222 through the first communication port 1251, and then flow into the water supply channel 320 of the heat exchange structure 300 through the heat exchange inlet interface 112, exchange heat with the hot water in the heat exchange channel 310 of the heat exchange structure 300 to form warm water, and then flow to the water outlet valve 400, and finally flow from the outlet of the bathroom channel 405 of the water outlet valve 400 to the bathroom system to provide water for users; the water in the water outlet channel 1222 can also flow into the bathroom channel 405 of the water outlet valve 400 through the water outlet interface 119 to provide the required cold water. When the external temperature is high, the cold water flowing into the water inlet interface 111 has a high temperature, and the same amount of gas can heat the water to a very high temperature. At this time, the servo motor 21 can drive the blocking part 2121 to move away from the first communication port 1251, so as to increase the distance between the blocking part 2121 and the first communication port 1251, thereby increasing the water inlet flow rate between the first water supplement channel 1211 and the water outlet channel 1222 and between the water inlet channel 1221 and the water outlet channel 1222, so as to reduce the temperature of the warm water after heat exchange by increasing the flow rate of the cold water, thereby avoiding that the temperature of the warm water after heat exchange is too high to scald the user.

[0079] Optionally, the cross-sectional area of the first water supplement channel 1211 is S0, the cross-sectional area of the water inlet channel 1221 is S1, and the cross-sectional area of the water outlet channel 1222 is S2, wherein (S0+S1) / S2<1. That is, the sum of the water flow path of the first water supplement channel 1211 and the water flow path of the water inlet channel 1221 is less than the water flow path of the water outlet channel 1222, which can further reduce the water resistance in the water outlet channel 1222.

[0080] As shown in FIG. 1, the first valve body 11 is provided with a water inlet interface 111, a water outlet interface 112, a heat exchange inlet interface 113, a heat exchange outlet interface 114, a water supplement interface 115, a water outlet interface 116, and a water inlet cavity 1171. Figures 3-6 As shown, the second valve body 12 further comprises a water supplement branch pipe 121, which is arranged in parallel with the water inlet and outlet branch pipe 122, and the first valve body 11 is further provided with a water supplement interface 115, the water supplement branch pipe 121 is inserted into the water supplement interface 115 and communicates with the water inlet cavity 1171, and the first water supplement channel 1211 is formed in the water supplement branch pipe 121. The cold water flowing into the water inlet cavity 1171 from the water inlet interface 111 can flow into the first water supplement channel 1211 and the water inlet channel 1221 at the same time.

[0081] Optionally, the second valve body 12 further comprises a main valve part 125, the water supplement branch pipe 121 and the water inlet and outlet branch pipe 122 are connected to the main valve part 125, and the flow regulating assembly 2 is installed on the main valve part 125. By arranging the main valve part 125, the overall support of the water supplement branch pipe 121 and the water inlet and outlet branch pipe 122 can be realized, so as to ensure the integrity of the second valve body 12.

[0082] The water inlet valve 100 provided by the embodiment further comprises a manual water supplement valve 3, and the valve body 1 further has a second water supplement passage 1241 and a second communication port 1240. One end of the second water supplement passage 1241 can be communicated with the first water supplement passage 1211 through the second communication port 1240, and the other end of the second water supplement passage 1241 is communicated with the water pump interface 114. The manual water supplement valve 3 is adjustably installed on the valve body 1 and can selectively block the second communication port 1240. When the heating water circuit is short of water, the manual water supplement valve 3 can be adjusted to open the second communication port 1240, so that the water in the first water supplement passage 1211 flows to the water pump interface 114 through the second communication port 1240 and the second water supplement passage 1241, and is delivered to the combustion chamber 200 by the water pump for heating, thereby supplementing the heating water circuit. The specific structure and working principle of the manual water supplement valve 3 are not limited in the embodiment, and any manual water supplement valve in the prior art that can be applied to the water inlet valve is within the protection scope of the embodiment.

[0083] Specifically, the second valve body 12 further comprises an outer ring branch pipe 124, which is annularly arranged at the outer periphery of the water supplement branch pipe 121, and the space between the two forms the second water supplement passage 1241. This design is equivalent to dividing the inner hole passage of the outer ring branch pipe 124 into the first water supplement passage 1211 and the second water supplement passage 1241, which is compact in structure and can reduce the volume of the water inlet valve 100 to a certain extent.

[0084] Optionally, the second valve body 12 further comprises an installation branch pipe 123, which is connected to the main valve part 125, and the installation branch pipe 123 is provided with an installation cavity. The manual water supplement valve 3 is partially installed in the installation cavity to realize stable installation of the manual water supplement valve 3.

[0085] Figure 7 A sectional structure schematic view of the flow regulating assembly 2 provided by the embodiment is shown. As shown in the figure, Figure 7 and combined with Figures 3-5As shown, the servo motor 21 comprises a motor body 211 and a regulating valve core 212 connected with the motor body 211, and a side wall portion of the regulating valve core 212 is outwardly convex to form the blocking portion 2121. Further, the valve body 1 is further provided with a first mounting port 1253 for mounting the flow regulating assembly 2, and the flow regulating assembly 2 further comprises a support sleeve 22 sealingly connected to the first mounting port 1253, and the regulating valve core 212 is arranged in the support sleeve 22 and threadedly connected with the support sleeve 22. When the motor body 211 is started, it can drive the regulating valve core 212 to rotate, thereby driving the blocking portion 2121 to move along the axial direction of the regulating valve core 212 to approach or move away from the first communication port 1251. By arranging the support sleeve 22, the transmission support of the regulating valve core 212 can be increased. In the embodiment, the first mounting port 1253 is arranged at the end of the main valve portion 125 away from the water replenishing branch pipe 121, and the first communication port 1251 is a sealing step arranged on the inner wall of the first mounting port 1253.

[0086] Specifically, the support sleeve 22 comprises a transmission matching portion 221 and an inner sealing portion 222 connected with each other, the transmission matching portion 221 is threadedly matched with the regulating valve core 212, and the inner sealing portion 222 is sleeved on the outer periphery of the regulating valve core 212, and a first sealing member 231 is arranged between the inner sealing portion 222 and the regulating valve core 212 to ensure the sealing performance of the transmission portion of the regulating valve core 212 and the water flow area in the valve body 1. Optionally, a second sealing member 232 is further arranged between the transmission matching portion 221 and the first mounting port 1253 to enhance the sealing performance of the servo motor 21 and the water flow area in the valve body 1 to protect the power element. In the embodiment, the first sealing member 231 and the second sealing member 232 can both be O-shaped sealing rings, and the number of layers of the O-shaped sealing rings is not limited; for example, the first sealing member 231 can be arranged in one layer, two layers, three layers or even more layers.

[0087] It should be explained that when the blocking portion 2121 is located at the second position, the blocking portion 2121 abuts against the support sleeve 22 to limit the maximum opening degree of the blocking portion 2121 by the position of the support sleeve 22, thereby facilitating the determination of the maximum value of the water flow. When designing the water inlet valve 100, the maximum opening degree of the blocking portion 2121 can be changed by changing the length of the part of the support sleeve 22 for abutting against the blocking portion 2121, thereby changing the regulating range of the regulating water flow.

[0088] As Figure 3 , Figure 4 and Figure 7As shown, the valve body 1 (specifically, the main valve part 125) is further provided with a guide groove 1252, and the adjusting valve core 212 is slidably arranged in the guide groove 1252. When the motor body 211 drives the adjusting valve core 212 to move, the adjusting valve core 212 can be guided and limited by the guide groove 1252, so as to ensure the stability of the adjusting valve core 212 during movement.

[0089] Figure 8 A second structural schematic diagram of the water inlet valve 100 is shown. Figure 8 And in combination with Figure 3 As shown, the water outlet channel 1222 and the heat exchange inlet interface 112 are provided with a flow detection assembly. The flow detection assembly comprises an impeller 41 and a flow sensor 42. The first valve body 11 of the valve body 1 is provided with an impeller cavity 118. The impeller cavity 118 is in communication with the water outlet channel 1222 through a water outlet cavity 1172, and is also in communication with the heat exchange inlet interface 112. The impeller 41 is arranged in the impeller cavity 118, and the flow sensor 42 is signal-connected with the impeller 41. Figure 3 In combination with the arrow direction in the figure, after the water flow flows out from the water outlet channel 1222, the water flow enters the impeller cavity 118 through the water outlet cavity 1172. The water flow rotates the impeller 41 by impacting the blades of the impeller 41, so that the flow sensor 42 outputs a water flow signal, so as to detect the water flow entering the heat exchange inlet interface 112, and facilitate accurate control of the flow.

[0090] As shown in Figure 2 , Figure 3 and Figure 6 As shown, the valve body 1 (specifically, the first valve body 11) further has a second mounting port 110. The second mounting port 110 is in communication with the impeller cavity 118, and is used for mounting the circulating water pump 5, so as to realize stable mounting of the circulating water pump 5. Optionally, in the embodiment, the flow adjusting assembly 2 and the circulating water pump 5 are both located on the front side of the valve body 1. The front side of the water inlet valve 100 refers to the side thereof away from the heat exchange structure 300 after installation. By arranging the flow adjusting assembly 2 and the circulating water pump 5 on the front side of the valve body 1, on the one hand, the space of the valve body 1 in the front-rear direction can be fully utilized, the volume of the water inlet valve 100 is reduced, and the layout of the entire water inlet valve 100 is optimized. On the other hand, it is also convenient for the operator to maintain and repair the flow adjusting assembly 2 or the circulating water pump 5, without the need to disassemble the entire water inlet valve 100, and the convenience of operation of the operator is improved.

[0091] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A water inlet valve characterized by, The utility model relates to a valve body (1) with a water inlet interface (111), a water outlet interface (119), a heat exchange inlet interface (112) and a water inlet-outlet channel, the water inlet interface (111) being connected to an external water source, the inlet of the water inlet-outlet channel being connected to the water inlet interface (111), the outlet of the water inlet-outlet channel being connected to the heat exchange inlet interface (112) and the water outlet interface (119), and the heat exchange inlet interface (112) being connected to a heat exchange structure (300). A flow regulating assembly (2) is configured to regulate the water flow in the water inlet-outlet channel. A circulating water pump (5) is installed on the valve body (1) between the heat exchange inlet interface (112) and the water outlet interface (119), and is configured to pump the water at the water outlet interface (119) back into the water inlet-outlet channel and then to the heat exchange structure (300) through the heat exchange inlet interface (112) for heating. The water inlet-outlet channel comprises a water inlet channel (1221), a water outlet channel (1222) and a first communication port (1251) connecting the water inlet channel (1221) and the water outlet channel (1222), the inlet of the water inlet channel (1221) being connected to the water inlet interface (111), and the outlet of the water outlet channel (1222) being connected to the heat exchange inlet interface (112) and the water outlet interface (119).

2. The inlet valve of claim 1, wherein The valve body (1) comprises:

3. The inlet valve of claim 2, wherein a first valve body (11) provided with a mounting interface (116), and the water inlet interface (111), the heat exchange inlet interface (112) and the water outlet interface (119) are formed on the first valve body (11); a second valve body (12) comprising a water inlet-outlet branch pipe (122), the water inlet-outlet branch pipe (122) being inserted into the mounting interface (116), and a partition (1223) being arranged in the water inlet-outlet branch pipe (122) along the axial direction to divide the inner hole channel of the water inlet-outlet branch pipe (122) into the water inlet channel (1221) and the water outlet channel (1222). The cross-sectional area of the water inlet channel (1221) is S1, and the cross-sectional area of the water outlet channel (1222) is S2, wherein S1 / S2 < 1.

4. The inlet valve of claim 3, wherein The water inlet-outlet channel further comprises a first water supplement channel (1211) arranged in the valve body (1) and independent of the water inlet channel (1221), one end of the first water supplement channel (1211) being connected to the water inlet interface (111), and the other end of the first water supplement channel (1211) being connected to the water outlet channel (1222) through the first communication port (1251).

5. The inlet valve of claim 2, wherein The cross-sectional area of the first water supplement channel (1211) is S0, the cross-sectional area of the water inlet channel (1221) is S1, and the cross-sectional area of the water outlet channel (1222) is S2, wherein (S0+S1) / S2 < 1.

6. The inlet valve of claim 5, wherein ​ 7. The inlet valve of claim 5, wherein The water inlet valve further comprises a manual water supplement valve (3), the valve body (1) further has a second water supplement channel (1241), a second communication port (1240) and a water pump interface (114), one end of the second water supplement channel (1241) is in communication with the first water supplement channel (1211) through the second communication port (1240), and the other end of the second water supplement channel (1241) is in communication with the water pump interface (114); the manual water supplement valve (3) is adjustably installed on the valve body (1) and can selectively block the second communication port (1240).

8. The inlet valve of claim 2, wherein The flow regulating assembly (2) comprises a servo motor (21), an output end of the servo motor (21) is provided with a blocking part (2121), the servo motor (21) is arranged on the valve body (1), the blocking part (2121) is located in the valve body (1), and the servo motor (21) is configured to drive the blocking part (2121) to move close to or away from the first communication port (1251) to adjust the spacing between the blocking part (2121) and the first communication port (1251).

9. The inlet valve of claim 8, wherein, The servo motor (21) comprises a motor body (211) and an adjusting valve core (212) connected with the motor body (211), and a side wall part of the adjusting valve core (212) is outwardly convex to form the blocking part (2121).

10. The inlet valve of claim 9, wherein The valve body (1) is further provided with a first mounting port (1253) for mounting the flow regulating assembly (2), the flow regulating assembly (2) further comprises a support sleeve (22), the support sleeve (22) is sealingly connected to the first mounting port (1253), the adjusting valve core (212) is arranged in the support sleeve (22) and is threadedly connected with the support sleeve (22).

11. The inlet valve according to any one of claims 1 to 10, characterized in that A flow detection assembly is arranged between the water outlet interface (119) and the heat exchange inflow interface (112), the flow detection assembly comprises an impeller (41) and a flow sensor (42), the valve body (1) is provided with an impeller cavity (118), the impeller cavity (118) is in communication with the water inlet and outlet channel and the heat exchange inflow interface (112) respectively, the impeller (41) is arranged in the impeller cavity (118), and the flow sensor (42) is signal-connected with the impeller (41).

12. The inlet valve of claim 11, wherein, The flow regulating assembly (2) and the circulating water pump (5) are located on the front side of the valve body (1).

13. A hydronic system for a wall-hung boiler, characterized in that, Comprise: A heat exchange structure (300) comprising heat exchange channels (310) and water supply channels (320) matched with each other; A water outlet valve (400) having a bathroom channel (405) and a heat exchange water outlet flow channel (404) in communication, the heat exchange water outlet flow channel (404) being in communication with an outlet of the water supply channel (320); The water inlet valve of any one of claims 1-12, a water outlet interface (119) of the water inlet valve being in communication with an inlet of the bathroom channel (405), and a heat exchange inflow interface (112) of the water inlet valve being in communication with an inlet of the water supply channel (320).

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