Heating system

Abstract

This invention relates to the field of household appliance technology and provides a heating system. The heating system includes a liquid container, a heating element, and a valve assembly. The valve assembly includes a housing and a valve core. The housing has a first opening, a second opening, and a cavity connecting the first and second openings. The first opening connects to the liquid container, and the second opening connects to the heating element. The valve core is located in the cavity and is adapted to switch between a first position and a second position under fluid pressure. In the first position, it connects along the direction from the liquid container, the first opening, and the second opening towards the heating element. In the second position, it connects along the direction from the heating element, the second opening, and the first opening towards the liquid container. The heating system of this invention combines unidirectional connection and pressure relief functions. The valve assembly has only one inlet and one outlet and does not require an exhaust port. Pressure relief is achieved through counter-current flow based on fluid pressure. The heating system has a simple structure and small size.

Description

Technical Field

[0001] This invention relates to the field of fluid transport technology, and more particularly to heating systems. Background Technology

[0002] The heating system piping needs to be equipped with check valves and pressure relief valves. Check valves can prevent liquid or gas from flowing back, and pressure relief valves can discharge excess pressure from the piping to avoid excessive pressure caused by pipe blockage, other valve closures, etc., thus eliminating the risk of liquid or gas leakage.

[0003] In related technologies, the pipeline is equipped with both a check valve and a pressure relief valve. A matching connecting pipeline needs to be designed for the pressure relief valve to release pressure through it, making the pipeline more complex. The check valve and the pressure relief valve also need to have matching fixing structures, which are also quite complex. In some cases, a collection structure and an anti-jet structure need to be added, making it difficult to reduce product costs. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a heating system that combines unidirectional connectivity and pressure relief functions. The valve assembly has only one inlet and one outlet and does not require an exhaust port. The heating component relieves pressure based on fluid pressure through counterflow. The heating system has a simple structure and small size.

[0005] A heating system according to an embodiment of the present invention includes a liquid container, a heating element, and a valve assembly. The valve assembly includes a housing and a valve core. The housing has a first opening, a second opening, and a cavity connecting the first opening and the second opening. The first opening communicates with the liquid container, and the second opening communicates with the heating element. The valve core is located in the cavity and is adapted to switch between a first position and a second position under fluid pressure. In the first position, the valve core communicates with the heating element along the liquid container, the first opening, and the second opening. In the second position, the valve core communicates with the liquid container along the heating element, the second opening, and the first opening.

[0006] According to an embodiment of the heating system of the present invention, the valve assembly includes a housing and a valve core. The valve core can switch between a first position and a second position within the housing. In the first position, a first opening communicates with a second opening; in the second position, the second opening communicates with the first opening. The first position can be understood as the liquid supply state of the valve assembly, which can be understood as a one-way communication function. The second position can be understood as a pressure relief function, where the valve assembly switches to the second position due to pressure changes. The valve assembly combines one-way communication and pressure relief functions, and has only one inlet and one outlet, eliminating the need for an exhaust port. Pressure relief is achieved through countercurrent flow based on fluid pressure. The heating system has a simple structure and small size.

[0007] According to one embodiment of the present invention, the valve core further includes a third position, the valve core being adapted to switch between the third position and one of the first and second positions by fluid pressure, wherein in the third position, the first opening and the second opening are disconnected by the valve core. The third position can be understood as the non-operating state of the valve core.

[0008] According to one embodiment of the present invention, the valve core includes a valve plate and an adjusting member. The adjusting member is located on the side of the valve plate facing the second opening. The valve plate has a first through hole. In the first position, there is a gap between the adjusting member and the valve plate. The first opening and the second opening are connected through the first through hole and the gap. The valve plate is sealed to the housing. In the second position, the adjusting member is sealed to the valve plate to close the first through hole. A channel connecting the first opening and the second opening is formed between the valve plate and the housing.

[0009] According to one embodiment of the present invention, the housing includes a first inner wall and a second inner wall connected to each other and forming an included angle. In the first position, the outer wall surface of the valve plate is in sealing contact with the first inner wall. In the second position, the outer wall surface of the valve plate is released from sealing with the first inner wall, and the outer wall surface of the valve plate forms the gap with the second inner wall.

[0010] According to one embodiment of the present invention, the valve core further includes an elastic element, one end of which is limited to the valve plate and the other end of which is limited to the housing. The elastic force of the elastic element acts on the valve plate, causing the valve core to be located in the first position.

[0011] According to one embodiment of the present invention, the valve core further includes a limiting member, the limiting member communicating with the first opening and the first through hole, one side of the limiting member being limited to the housing, and the other side of the limiting member limiting the other end of the elastic member.

[0012] According to one embodiment of the present invention, a shaft is connected between the limiting member and the valve plate, the elastic member is sleeved on the outside of the shaft, and the shaft passes through the adjusting member.

[0013] According to one embodiment of the present invention, the valve plate is connected to a clamping member, the clamping member is circumferentially limited by the valve plate, the clamping member is located on the side of the valve plate facing the limiting member, the clamping member is connected to one end of the elastic member, and the clamping member circumferentially limits the adjusting member.

[0014] According to one embodiment of the present invention, the adjusting member includes an adjusting part and a mounting part connected together, the adjusting part closing the first through hole in the second position, and the adjusting part being connected to the valve plate through the mounting part.

[0015] According to one embodiment of the present invention, the valve plate has an assembly hole, the mounting part includes a limiting part and a connecting part connected to each other, the connecting part passes through the assembly hole and is connected to the adjusting part at one end of the assembly hole, and the limiting part is limited at the other end of the assembly hole by the valve plate.

[0016] According to one embodiment of the present invention, the valve core further includes a third position, the valve core being adapted to switch between one of the first position and the second position and the third position by fluid pressure, wherein in the third position, the adjusting member is sealingly connected to the valve plate to close the first through hole, and the valve plate is sealingly connected to the housing.

[0017] According to one embodiment of the present invention, the adjusting member and the mounting portion are elastic structures, and the adjusting portion and the mounting portion are integrally formed.

[0018] According to one embodiment of the present invention, the valve plate has a plurality of first through holes.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the valve assembly provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the valve assembly provided in an embodiment of the present invention; the valve core is located in the first position in the figure. Figure 3 This is a cross-sectional view of the valve assembly provided in an embodiment of the present invention; the valve core is located in the second position in the figure. Figure 4 This is a cross-sectional schematic diagram of the valve assembly provided in an embodiment of the present invention. Figure 5 This is a structural schematic diagram of the valve assembly in an exploded state provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the heating system provided in an embodiment of the present invention; Figure 7This is a schematic diagram of the heating system in the relevant technology.

[0022] Figure label: 100. Shell; 101. First opening; 102. Second opening; 103. Cavity; 104. First inner wall; 105. Second inner wall; 106. First part; 107. Second part; 200, Valve core; 210, Valve plate; 211, First through hole; 212, Assembly hole; 220, Adjusting component; 221, Adjusting part; 222, Mounting part; 223, Limiting part; 224, Connecting part; 225, Mating hole; 230, Elastic component; 240, Limiting component; 241, Second through hole; 250, Shaft; 260, Clamping component; 261, Third through hole; 262, Limiting groove; 280, Clearance; 290, Channel; 300, Liquid container; 400, Heating component; 500, On / off valve; 600, First rear valve body; 701. Water tank; 702. Heating component; 703. Solenoid valve; 704. Check valve; 705. Pressure relief valve; 706. Pipeline A; 707. Pipeline B; 708. Second rear valve body. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0026] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0028] Embodiments of the present invention, with reference to Figures 1 to 6 As shown, a heating system is provided, including: a liquid container 300, a heating component 400, and a valve assembly. The valve assembly includes a housing 100 and a valve core 200. The housing 100 is configured with a first opening 101, a second opening 102, and a cavity 103 connecting the first opening 101 and the second opening 102. The liquid container 300 is connected to the first opening 101, and the second opening 102 is connected to the heating component 400.

[0029] The valve core 200 is adapted to switch between a first position and a second position under fluid pressure. In the first position, it is connected to the heating element 400 along the liquid container 300, the first opening 101, and the second opening 102, so that fluid can flow from the liquid container 300, the first opening 101, and the second opening 102 to the heating element 400 to achieve liquid supply. In the second position, it is connected to the liquid container 300 along the heating element 400, the second opening 102, and the first opening 101, so that fluid can flow from the heating element 400, the second opening 102, and the first opening 101 to the liquid container 300 to achieve pressure relief.

[0030] The liquid container 300 is located upstream of the heating element 400, and the valve assembly is located between the liquid container and the heating element 400. The first opening 101 of the valve assembly is connected to the liquid container 300, and the second opening 102 of the valve assembly is connected to the heating element 400. The structure is simple and can realize bidirectional communication and pressure relief functions.

[0031] After the heating element 400 of the heating system heats the liquid, a portion of the liquid will turn into gas or a gas-liquid mixture, increasing the pressure of the heating system. At this time, the second opening 102 is connected to the side where the heating element 400 with higher fluid pressure is located. After the fluid pressure increases, pressure can be released along the direction of the second opening 102 towards the first opening 101 to ensure pressure balance. This eliminates the need for a dedicated pressure relief pipeline, simplifying the piping structure. When the fluid pressure is stable, fluid can be transported along the direction of the first opening 101 towards the second opening 102. The valve assembly used in the heating system simplifies the piping structure, and the simple structure of the housing 100 further simplifies its installation.

[0032] Heating systems may include, but are not limited to, kettles, coffee makers, rice cookers, and steam ovens.

[0033] In some embodiments, the valve core 200 further includes a third position, which is adapted to switch between a first position and a second position and a third position. In the third position, the first opening 101 and the second opening 102 are disconnected by the valve core 200. The third position represents a state where the fluid pressure on the valve core is insufficient to open it. Under the action of fluid pressure, the valve assembly can switch from the third position to the first or second position. When the fluid pressure is released, the valve assembly can switch from the first or second position to the third position. When the fluid on the side of the first opening 101 does not need to flow to the second opening 102, and the fluid on the side of the second opening 102 does not need to flow to the first opening 101, the valve core 200 is in the third position, disconnecting the first opening 101 and the second opening 102. The valve core 200 is adapted to switch between a first position and a second position and a third position by fluid pressure.

[0034] In some embodiments, reference is made to Figure 6 As shown, an on / off valve 500 is provided between the liquid container 300 and the valve assembly to regulate the opening and closing of the first opening 101 between the liquid container 300 and the valve assembly. When the liquid container 300 needs to supply fluid to the heating element 400, the on / off valve 500 opens. When the heating element 400 stops heating and does not need to depressurize the liquid container 300, the on / off valve 500 closes, that is, the first opening 101 between the liquid container 300 and the valve assembly is disconnected. At this time, the valve core 200 is in the third position.

[0035] Taking the heating system used for heating water as an example, the working process of the heating system will be explained.

[0036] The liquid container 300, the on / off valve 500, the valve assembly and the heating element 400 are connected in sequence. When the on / off valve 500 is opened, the liquid in the liquid container 300 flows through the valve assembly under the action of gravity. The liquid flows from the first opening 101 to the second opening 102 and enters the heating element 400. The heating element 400 rapidly heats the liquid to generate high-temperature liquid or steam. The high-temperature liquid or steam enters the required working terminal through the first rear valve body 600.

[0037] When the on / off valve 500 is open and the pipeline is blocked or the first rear valve body 600 is closed, the heating element 400 is still in operation, continuously generating high-temperature liquid or steam, causing the pipeline pressure to increase sharply. Under the pressure reaction of the high-temperature liquid or steam, the valve assembly connects the valve core 200 from the second opening 102 to the first opening 101. The high-temperature liquid or steam flows through the valve assembly, flows back through the on / off valve 500, and finally exits the pipeline system through the liquid container 300, thus achieving protection. The heat of the high-temperature liquid or steam can also be used for heat exchange with the liquid in the liquid container 300.

[0038] Additionally, refer to Figure 7 The diagram shown illustrates the structure of a heating system in a related technology. Figure 7 The heating system includes a water tank 701, a solenoid valve 703, a check valve 704, a pressure relief valve 705, and a heating element 702 connected in sequence. When the on / off valve 500 is open, water in the water tank 701 flows through the solenoid valve 703, the check valve 704, and the pressure relief valve 705 under gravity. The water flows unidirectionally into the heating element 702, which rapidly heats the water to produce high-temperature hot water or steam. The high-temperature hot water or steam then passes through the second rear valve body 708 to the desired working terminal. When the pipeline is blocked or the second rear valve body 708 is closed, the heating element 702 system remains operational, continuously producing hot water or steam, causing a sharp increase in pipeline pressure. The pressure relief valve, under the pressure reaction, connects the pressure relief pipeline, allowing the high-pressure hot water or steam to flow back into the water tank 701 through the third pressure relief outlet via pipeline A706, or to be discharged outside the electrical appliance via pipeline B707, thus achieving pressure relief.

[0039] Compared to Figure 7 The heating system shown in this application Figure 6 The heating system shown discharges excess fluid pressure through liquid container 300 via valve assembly, eliminating the need for pipes A706 and B707, as well as auxiliary gas-liquid collection and anti-jet devices, thus reducing structural costs.

[0040] In some embodiments, the bottom of the liquid container 300 is higher than the heating element 400, and the liquid in the liquid container can flow to the heating element 400 by gravity. The liquid solution can be understood, but is not limited to, a water tank 701. The heating element 400 can be understood, but is not limited to, a heating wire, a heating rod, etc.

[0041] Embodiments of the present invention, with reference to Figures 1 to 5 The valve assembly is described below. The valve assembly includes a housing 100 and a valve core 200 located within a cavity 103 of the housing 100. It should be noted that the valve assembly can be, but is not limited to, used in the heating system described above.

[0042] Figure 1 The diagram illustrates a housing 100, which includes a first opening 101, a second opening 102, and a cavity 103 connecting the first opening 101 and the second opening 102. One of the first opening 101 and the second opening 102 can serve as an inlet, and the other as an outlet. The cavity 103 connects the first opening 101 and the second opening 102 and also houses a valve core 200 to regulate the fluid flow direction and the function of the valve assembly. The relative positions of the first opening 101 and the second opening 102 are not limited. The diagram uses the opening on the left as the first opening 101 and the opening on the right as the second opening 102 as an example to illustrate the valve assembly. However, the first opening 101 can also be located at the right end of the second opening 102; its working principle is the same as in the illustrated embodiment, and the embodiments of the present invention will not be described further.

[0043] refer to Figure 2 and Figure 3 As shown, the valve core 200 is located within the cavity 103, between the first opening 101 and the second opening 102. The valve core 200 can be adjusted in position within the cavity 103 to regulate the relationship between the first opening 101 and the second opening 102. The valve core 200 is adapted to switch between the first position and the second position within the cavity 103 by fluid pressure. At different positions, the fluid flow direction within the valve assembly differs, and the valve assembly performs different functions.

[0044] The valve core 200 includes a valve plate 210 and an adjusting member 220. The adjusting member 220 is located on the side of the valve plate 210 facing the second opening 102. The valve plate 210 has a first through hole 211. (Reference) Figure 2As shown, in the first position, the valve core 200 has a gap 280 between the adjusting member 220 and the valve plate 210. The first opening 101 and the second opening 102 are connected through the first through hole 211 and the gap 280. The valve plate 210 is sealed to the housing 100, and no channel 290 is formed connecting the second opening 102 to the first opening 101. In the first position, the valve core 200 has the first opening 101 as an inlet, and fluid can flow along the first opening 101, the first through hole 211, and the gap 280 to the second opening 102, which serves as an outlet.

[0045] The adjusting member 220 is located on the side of the valve plate 210 facing the second opening 102. This means that the adjusting member 220 does not affect the on / off state of the first through hole 211 and the first opening 101, but it does affect the on / off state of the first through hole 211 and the second opening 102. When there is a gap 280 between the adjusting member 220 and the valve plate 210, the first through hole 211 and the second opening 102 are connected; when there is no gap between the adjusting member 220 and the valve plate 210, the first through hole 211 and the second opening 102 are disconnected. Of course, the first opening 101 and the first through hole 211 can be normally connected or their on / off states can be adjusted; this is not limited here.

[0046] refer to Figure 3 As shown, the valve core 200 is in the second position, and the adjusting member 220 is sealed to the valve plate 210 to close the first through hole 211, that is, there is no gap 280 between the adjusting member 220 and the valve plate 210. A channel 290 is formed between the valve plate 210 and the housing 100, connecting the first opening 101 and the second opening 102. In the second position, the valve core 200 can be used as an inlet, and fluid can flow along the second opening 102 and the channel 290 to the first opening 101. The first opening 101 serves as an outlet, and the first through hole 211 is closed by the adjusting member 220, so fluid will not flow through the first through hole 211.

[0047] In this embodiment of the valve assembly, a position-adjustable valve core 200 is disposed within the housing 100. The valve core 200 functions as a one-way communication device in both a first position and a second position. In the first position, the fluid flowing from the first opening 101 to the second opening 102 pushes open the regulating member 220, allowing the first through hole 211 to communicate with the second opening 102. In the second position, the fluid pressure flowing from the second opening 102 to the first opening 101 is adjusted. The adjusting element 220 is closed, disconnecting the first through hole 211 from the second opening 102. From the first position to the second position, the fluid pressure from the second opening 102 to the first opening 101 is greater than the fluid pressure from the first opening 101 to the second opening 102. The fluid pressure from the second opening 102 to the first opening 101 drives the valve core 200 to move to the second position. The fluid pressure from the second opening 102 to the first opening 101 also causes the adjusting element 220 to close the first through hole 211. By adjusting the valve core 200 between the two positions through fluid pressure, the valve assembly can have a bidirectional communication function. When the valve core 200 is in the first position, it can be understood as having a one-way communication function from the first opening 101 to the second opening 102, or it can be understood as having the function of a one-way valve 704. When the valve core 200 is in the second position, it can be understood as having a one-way communication function from the second opening 102 to the first opening 101, or it can be understood as having the function of a pressure relief valve 705. Pressure relief from the second opening 102 to the first opening 101 does not require a separate pressure relief port, which simplifies the structure of the valve assembly and also simplifies the fluid pipeline.

[0048] The valve assembly of this invention combines the functions of a check valve and a pressure relief valve, and has only one inlet and one outlet, eliminating the need for an exhaust port. It relieves pressure by counter-current flow based on fluid pressure, resulting in a simple structure and small size.

[0049] The valve core 200 also includes a third position. In this third position, the adjusting member 220 is sealed to the valve plate 210 to eliminate a gap 280 between them, and the valve core 20 is also sealed to close the first through hole 211 of the valve plate 210. The valve plate 210 is sealed to the housing 100 to disconnect the channel 290 between them. In this third position, the fluid pressure on the side of the first opening 101 is insufficient to open the gap 280, and the fluid pressure on the side of the second opening 102 is insufficient to open the channel 290, causing both the gap 280 and the channel 290 to disconnect, and both the first opening 101 and the second opening 102 to disconnect. This can be understood as the heating system not being activated, and the valve core 200 is isolating the liquid container from the heating element.

[0050] Understandably, reference Figure 2 and Figure 3As shown, the housing 100 includes a first inner wall 104 and a second inner wall 105 connected and forming an included angle. In a first position, the outer wall surface of the valve plate 210 is in sealing contact with the first inner wall 104. In a second position, the outer wall surface of the valve plate 210 is released from the first inner wall 104, and a gap 280 is formed between the outer wall surface of the valve plate 210 and the second inner wall 105. By moving the valve core 200 between the first and second positions, the positional relationship between the outer wall surface of the valve plate 210 and the inner wall surface of the housing 100 changes, the fluid flow path within the housing 100 changes, and the function of the valve assembly changes. By adjusting the relationship between the outer wall surface of the valve plate 210 and the inner wall surface of the housing 100, the flow path of the valve assembly is adjusted, resulting in a simple structure and convenient adjustment.

[0051] refer to Figure 2 and Figure 3 As shown, the first inner wall 104 and the second inner wall 105 form a right angle. This right angle is not strictly limited and can be within a preset range of allowable processing errors or design deviations. The preset range can be set as needed. Of course, the first inner wall 104 and the second inner wall 105 can also form an acute or obtuse angle; the angle is not limited here. The interior of the housing 100 forms a stepped structure, with the second inner wall 105 connecting the first inner wall 104 and the third inner wall to form the stepped structure.

[0052] It is understood that the valve core 200 also includes an elastic element 230. One end of the elastic element 230 is limited to the valve plate 210, and the other end is limited to the housing 100. The elastic force of the elastic element 230 acts on the valve plate 210, causing the valve core 200 to be in the first position. The elastic force of the elastic element 230 keeps the valve core 200 in the first position, ensuring that fluid flows from the first opening 101 to the second opening 102, thus achieving fluid delivery. The fluid pressure from the second opening 102 to the first opening 101 overcomes the elastic force of the elastic element 230, causing the valve core 200 to switch from the first position to the second position, allowing fluid to flow from the second opening 102 to the first opening 101, thus achieving pressure relief. When the heating component 400 heats the steam to generate pressure, the adjusting component 220 closes the first through hole 211 of the valve plate 210 and also compresses the elastic element 230, causing the valve plate 210 to move towards the first opening 101, and the second opening 102 to connect towards the first opening 101.

[0053] The elastic element 230 can be one or more of a spring, a sheet spring, or an elastic air bladder; the structural form of the elastic element 230 is not limited. (Reference) Figure 2 and Figure 3 As shown, the elastic element 230 is a spring, which has a simple structure and is easy to install. One end and the other end of the elastic element 230 are opposite ends arranged along the elastic deformation direction of the elastic element 230.

[0054] Understandably, the valve core 200 also includes a limiting member 240, which connects the first opening 101 and the first through hole 211. One side of the limiting member 240 is limited to the housing 100, and the other side of the limiting member 240 limits the other end of the elastic member 230. The limiting member 240 remains relatively fixed to the housing 100, and the other end of the elastic member 230 is limited by the limiting member 240. When the elastic member 230 is subjected to fluid pressure and undergoes elastic deformation, the limiting member 240 limits the other end of the elastic member 230, and the position of one end of the elastic member 230 is adjusted, thereby adjusting the position of the valve plate 210.

[0055] The limiting member 240 connects the first opening 101 and the second through hole 241. This can be understood as the limiting member 240 having a second through hole 241, which connects the first opening 101 and the second through hole 241. Alternatively, the outer wall of the limiting member 240 may be recessed to form a groove, with a gap between the groove and the housing 100. The space within the groove connects the first opening 101 and the second through hole 241, allowing fluid to flow through the space between the groove and the housing 100. (Reference) Figure 2 and Figure 3 As shown, the limiting member 240 has a second through hole 241, which is connected to the first opening 101 through the cavity 103, and is also connected to the first through hole 211 through the cavity 103.

[0056] It is understandable that a shaft 250 connects the limiting member 240 and the valve plate 210, thereby connecting the limiting member 240 and the valve plate 210. (Reference) Figure 2 and Figure 3 As shown, one end of the shaft 250 is fixedly connected to the limiting member 240. Therefore, one end of the shaft 250 is also limited by the housing 100. In the first position and the second position, one end of the shaft 250 can remain relatively fixed to the housing 100. The other end of the shaft 250 is connected to the valve plate 210, which can move relative to the other end of the housing 100. The valve plate 210 can move along the shaft 250 towards or away from the limiting member 240. The shaft 250 limits and guides the valve plate 210, ensuring that the valve plate 210 moves along a set path.

[0057] In some cases, an elastic element 230 is fitted onto the outer side of the shaft 250. The shaft 250 guides and limits the elastic element 230, ensuring that the elastic element 230 deforms along a predetermined path. (Reference) Figure 4 and Figure 5 As shown, a spring is sleeved on the outer side of the shaft 250.

[0058] In some cases, the shaft 250 passes through the adjusting member 220. The adjusting member 220 has a mating hole 225 for the shaft 250 to pass through, allowing the adjusting member 220 to also be limited by the shaft 250. The cross-sectional area of ​​the mating hole 225 is larger than that of the shaft 250, creating a gap between the mating hole 225 and the shaft 250. This reduces contact friction between the adjusting member 220 and the shaft 250, preventing jamming and improving adjustment stability.

[0059] Understandably, reference Figure 2 and Figure 3 As shown, valve plate 210 is connected to clamping member 260. Clamping member 260 is circumferentially limited to valve plate 210. Clamping member 260 and valve plate 210 are circumferentially fixed. Clamping member 260 can move synchronously with valve plate 210.

[0060] The clamping member 260 is located on the side of the valve plate 210 facing the limiting member 240. The clamping member 260 is connected to one end of the elastic member 230, which facilitates the installation of the elastic member 230 and simplifies the structure of the valve plate 210. The clamping member 260 can be made of rubber, silicone, or other elastic materials.

[0061] The clamping member 260 is circumferentially limited by the adjusting member 220. The adjusting member 220 is circumferentially limited by the clamping member 260, and the adjusting member 220 is easy to install and has good installation stability. In some embodiments, the clamping member 260 and the adjusting member 220 are made of the same material, which facilitates processing. Figure 2 , Figure 3 and Figure 5 As shown, the clamping member 260 has a limiting groove 262, and the adjusting member 220 is engaged in the limiting groove 262.

[0062] In some cases, the clamping member 260 may have a third through hole 261 so that the first through hole 211 can communicate with the cavity 103 through the third through hole 261. In other cases, the clamping member 260 does not cover the first through hole 211, and the clamping member 260 does not affect the connection between the first through hole 211 and the cavity 103. In this case, the clamping member 260 needs to have a third through hole 261.

[0063] Understandably, reference Figure 5 As shown, the adjusting member 220 includes an adjusting part 221 and a mounting part 222 connected to each other. The adjusting part 221 closes the first through hole 211 in a second position, and the adjusting part 221 is connected to the valve plate 210 via the mounting part 222. The adjusting part 221 can be adjusted in position relative to the valve plate 210, switching between the second position of closing the first through hole 211 and the first position of opening the first through hole 211. The adjusting part 221 serves to adjust the opening and closing of the first through hole 211, and the mounting part 222 serves to mount the adjusting part 221.

[0064] It is understood that the valve plate 210 has an assembly hole 212, and the mounting part 222 includes a limiting part 223 and a connecting part 224 connected to each other. The connecting part 224 passes through the assembly hole 212 and is connected to the adjusting part 221 at one end of the assembly hole 212. The limiting part 223 is limited at the other end of the assembly hole 212 by the valve plate 210, so that the adjusting part 221 is connected to the valve plate 210 through the mounting part 222.

[0065] refer to Figure 5 As shown, the cross-sectional area of ​​the limiting part 223 is larger than that of the connecting part 224, and the cross-sectional area of ​​the limiting part 223 is also larger than that of the mounting hole 212, so that the limiting part 223 is limited by the solid structure of the valve plate 210 at the other end of the mounting hole 212. The cross-sectional area of ​​the connecting part 224 can be less than or equal to the cross-sectional area of ​​the mounting hole 212, which facilitates the installation of the connecting part 224.

[0066] refer to Figure 2 , Figure 3 and Figure 5 As shown, the limiting part 223 is engaged with the limiting groove 262 of the clamping member 260, so that the adjusting member 220 is circumferentially limited to the clamping member 260.

[0067] In some cases, the limiting part 223 can pass through the mounting hole 212 through elastic deformation to realize the installation of the adjusting part 220; in other cases, at least two adjacent parts of the limiting part 223, the connecting part 224 and the adjusting part 221 can be detachably connected to realize the installation of the adjusting part 220.

[0068] It is understandable that the adjusting part 221 and the mounting part 222 are elastic structures, that is, the adjusting member 220 is an elastic structure, so that the adjusting member 220 can be adjusted between the state of opening the first through hole 211 and closing the first through hole 211, and it is also convenient to disassemble and assemble the adjusting member 220. The adjusting member 220 can be made of elastic materials such as rubber or silicone, or it can be a thin sheet-like flexible structure, such as a metal spring or a plastic spring.

[0069] It is understandable that the adjustment part 221 and the mounting part 222 are integrally formed, and the adjustment component 220 is an integrally formed structure. The adjustment component 220 has a simple structure, is easy to process, and has good structural stability.

[0070] Understandably, the valve plate 210 has multiple first through holes 211, and the adjusting member 220 can simultaneously close multiple first through holes 211 to ensure fluid flow. Furthermore, the multiple first through holes 211 can reduce the cross-sectional area of ​​a single fluid flow channel, helping to maintain the fluid velocity. (Reference) Figure 5 As shown, the valve plate 210 has multiple first through holes 211 evenly distributed around its circumference. Of course, the first through holes 211 are not limited to being evenly distributed, and can be arranged as needed.

[0071] The limiting member 240 also has multiple second through holes 241, which can be kept in a normally open state, simplifying the structure of the valve assembly. (Reference) Figure 5 As shown, the limiting member 240 has multiple second through holes 241 evenly distributed around its circumference. Of course, the second through holes 241 are not limited to being evenly distributed, and can be arranged as needed.

[0072] refer to Figure 4 and Figure 5 As shown, the housing 100 includes a first part 106 and a second part 107. The first part 106 and the second part 107 are detachably connected, which facilitates the installation of the valve core 200 in the cavity 103 of the housing 100. Figure 4 and Figure 5 In the design, the first part 106 and the second part 107 are distributed horizontally. The first part 106 has a first opening 101, and the second part 107 has a second opening 102. Of course, the first part and the second part can also be distributed vertically. The shell 100 can also be formed by combining multiple components, and the specific structure of the shell 100 is not limited.

[0073] The aforementioned valve assembly has a combined unidirectional and pressure-relief function, and can be understood as a composite valve used to transport high-temperature hot water or steam. The first opening 101 of the valve assembly is connected to the second opening 102, allowing the valve assembly to transport high-temperature hot water or steam to the required working terminal through the first rear valve body 600. When the pipeline is blocked or the first rear valve body 600 is closed, the heating component 702 system remains in operation, continuously generating hot water or steam, causing a sharp increase in pipeline pressure. Under the pressure of the high-temperature hot water or steam, the valve assembly opens the flow path from the second opening 102 to the first opening 101, reversing the flow of high-temperature hot water or steam back to the water tank 701 to release the pressure in the pipeline system and achieve the pressure relief function.

[0074] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A heating system, characterized in that, include: Liquid container (300); Heating element (400); A valve assembly includes a housing (100) and a valve core (200). The housing (100) is configured with a first opening (101), a second opening (102), and a cavity (103) connecting the first opening (101) and the second opening (102). The first opening (101) connects to the liquid container (300), and the second opening (102) connects to the heating element (400). The valve core (200) is located within the cavity (103) and is adapted to switch between a first position and a second position under fluid pressure. In the first position, it connects to the heating element along the liquid container, the first opening (101), and the second opening (102). In the second position, it connects to the liquid container along the heating element, the second opening (102), and the first opening (101).

2. The heating system of claim 1, wherein, The valve core also includes a third position, the valve core (200) being adapted to switch between the third position and one of the first and second positions by fluid pressure, in the third position, where the first opening and the second opening are disconnected by the valve core.

3. The heating system of claim 1, wherein, The valve core (200) includes a valve plate (210) and an adjusting member (220). The adjusting member (220) is located on the side of the valve plate (210) facing the second opening (102). The valve plate (210) has a first through hole (211). In the first position, there is a gap (280) between the adjusting member (220) and the valve plate (210). The first opening (101) and the second opening (102) are connected through the first through hole (211) and the gap (280). The valve plate (210) is sealed to the housing (100). In the second position, the adjusting member (220) is sealed to the valve plate (210) to close the first through hole (211). A channel (290) is formed between the valve plate (210) and the housing (100) to connect the first opening (101) and the second opening (102).

4. The heating system according to claim 3, characterized in that, The housing (100) includes a first inner wall (104) and a second inner wall (105) connected to each other and forming an angle. In the first position, the outer wall surface of the valve plate (210) is in sealed contact with the first inner wall (104). In the second position, the outer wall surface of the valve plate (210) is released from the first inner wall (104), and the outer wall surface of the valve plate (210) forms the gap with the second inner wall (105).

5. The heating system according to claim 3, characterized in that, The valve core (200) further includes an elastic element (230), one end of which is limited to the valve plate (210), and the other end of which is limited to the housing (100). The elastic force of the elastic element (230) acts on the valve plate (210), causing the valve core (200) to be located in the first position.

6. The heating system according to claim 5, characterized in that, The valve core (200) also includes a limiting member (240), which connects the first opening (101) and the first through hole (211). One side of the limiting member (240) is limited to the housing (100), and the other side of the limiting member (240) limits the other end of the elastic member (230).

7. The heating system according to claim 6, characterized in that, A shaft (250) is connected between the limiting member (240) and the valve plate (210). The elastic member (230) is sleeved on the outside of the shaft (250), and the shaft (250) passes through the adjusting member (220).

8. The heating system according to claim 6, characterized in that, The valve plate (210) is connected to a clamping member (260), the clamping member (260) is circumferentially limited to the valve plate (210), the clamping member (260) is located on the side of the valve plate (210) facing the limiting member (240), the clamping member (260) is connected to one end of the elastic member (230), and the clamping member (260) circumferentially limits the adjusting member (220).

9. The heating system according to claim 3, characterized in that, The adjusting member (220) includes an adjusting part (221) and a mounting part (222) connected to each other. The adjusting part (221) closes the first through hole (211) in the second position. The adjusting part (221) is connected to the valve plate (210) through the mounting part (222).

10. The heating system according to claim 9, characterized in that, The valve plate (210) has an assembly hole (212). The mounting part (222) includes a limiting part (223) and a connecting part (224) connected to each other. The connecting part (224) passes through the assembly hole (212) and is connected to the adjusting part (221) at one end of the assembly hole (212). The limiting part (223) is limited to the other end of the assembly hole (212) by the valve plate (210).

11. The heating system according to claim 9, characterized in that, The adjusting member (220) and the mounting part (222) are elastic structures, and the adjusting part (221) and the mounting part (222) are integrally formed.

12. The heating system according to any one of claims 3 to 11, characterized in that, The valve core also includes a third position, the valve core (200) being adapted to switch between one of the first position and the second position and the third position, in which the adjusting member (220) is sealed to the valve plate (210) to close the first through hole (211), and the valve plate (210) is sealed to the housing (100).

13. The heating system according to any one of claims 3 to 11, characterized in that, The valve plate (210) has multiple first through holes (211).

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