Water outlet valve with scale inhibition function
By installing a filter screen and scale inhibitor in the water outlet valve, the scale problem in the water circuit system of the wall-hung boiler is solved by using weakly charged groups to prevent scale formation, achieving a simple scale inhibition effect and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUAYI PRECISION MACHINERY CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-21
AI Technical Summary
In existing wall-hung boiler water systems, impurities in tap water can easily lead to scale formation. Existing solutions, such as using plastic materials or adding protective fluids, have limitations, and the cost of replacing scale inhibitor valves is high.
Design a water outlet valve with scale inhibition function, including a filter screen and scale inhibition plate. It prevents scale formation by reacting with ions in the water through weakly charged groups. The scale inhibition plate can be disassembled and replaced to reduce replacement costs.
It effectively prevents scale formation, is easy to operate, reduces replacement costs, and the scale inhibitor is food-grade and harmless, improving space utilization.
Smart Images
Figure CN224150252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically to a water outlet valve with scale inhibition function. Background Technology
[0002] A wall-hung boiler water system is a type of water heater that uses natural gas as its energy source. It boasts powerful central heating capabilities, meeting the heating needs of multiple rooms and providing domestic hot water for bathing, kitchens, and other areas. The outlet valve is an essential component of the wall-hung boiler water system. Its main function is to control the opening and closing of the inlet and outlet, the diversion of water flow, and the direction and flow rate of the water, thereby ensuring the even distribution of hot water within the pipes and the proper heating of the radiators.
[0003] The water circulating in the water system of a wall-hung boiler is usually tap water. Tap water often contains a lot of impurities, including rust, calcium and magnesium ions, after passing through the water supply network. If the tap water enters the water system of the wall-hung boiler directly without treatment, the impurities in the tap water can easily form scale inside the entire system. Over time, this can lead to blockage, corrosion, and reduced heat exchange efficiency in components such as valves, pipes, and plate heat exchangers, and may even cause water system malfunctions.
[0004] To address the aforementioned issues, the following methods are commonly employed in related technologies: 1) Valve bodies and connecting pipes are made of plastic or low-zinc brass to reduce scaling caused by metal leaching from the materials themselves. However, this method cannot eliminate scale generated by hard ions present in the water itself. 2) A protective fluid is added to the heating circulating water. However, after a period of use, the protective fluid causes the circulating water to become smelly, affecting the user experience. 3) A scale inhibitor valve is installed in the water circuit of the bathroom. However, the scale inhibitor plate in the scale inhibitor valve needs to be replaced regularly. When replacing it, the operator needs to remove the entire scale inhibitor valve and replace it with a new one, resulting in high replacement costs.
[0005] Therefore, there is an urgent need for a water outlet valve with scale inhibition function to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a water outlet valve with scale inhibition function, which can achieve better scale inhibition function, facilitate the replacement of scale inhibition plates, and reduce replacement costs.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A water outlet valve with scale inhibition function includes:
[0009] The valve body includes a three-way valve section and a second valve section. The three-way valve section is provided with a hot water inlet and a first fluid outlet and a second fluid outlet that are selectively connected to the hot water inlet. The second valve section is provided with a first flow channel that is connected to the second fluid outlet. An installation port is provided on the side wall of the second valve section. The installation port extends axially into the interior of the second valve section to form an installation chamber that is connected to the first flow channel.
[0010] A sealing element, which can be detachably sealed at the mounting port;
[0011] A scale inhibition assembly includes a filter screen and a scale inhibition plate, both of which are installed in the mounting chamber, with the scale inhibition plate located between the filter screen and the mounting port.
[0012] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the number of scale-inhibiting plates is at least two.
[0013] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the length of the line connecting any two points on the scale-inhibiting plate is less than the inner diameter of the mounting chamber.
[0014] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the length of the line connecting any two points on the scale-inhibiting plate is less than the depth of the installation chamber.
[0015] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, a limiting step is formed on the cavity wall of the installation chamber near the first flow channel, and one end of the filter screen abuts against the limiting step.
[0016] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the filter screen is a plastic filter screen.
[0017] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the filter screen is detachably connected to the installation chamber.
[0018] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the filter screen is interference-fitted into the mounting chamber.
[0019] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, the outer surface of the filter screen is coated with a silver ion plating layer.
[0020] As a preferred embodiment of the scale-inhibiting water valve provided by this utility model, a sealing element is provided between the plugging element and the mounting port.
[0021] The beneficial effects of this utility model are as follows:
[0022] The scale-inhibiting water valve provided by this utility model, through the setting of a scale-inhibiting component, allows water flowing into the first flow channel to pass through the filter screen and into the installation chamber when the hot water inlet is connected to the first flow channel. The scale-inhibiting sheet slowly dissolves and releases upon contact with water, generating a large number of weakly charged groups. These groups interact with cations such as copper, iron, calcium, and magnesium ions, as well as anions such as carbonate, bicarbonate, and sulfate ions in the water, creating a weak electrical interference effect. This rapidly deactivates scale-forming factors in the water. Only a very small amount of scale-inhibiting sheet needs to be dissolved and released to fundamentally prevent scale formation. Furthermore, the scale-inhibiting sheet is food-grade and harmless to humans and the environment. After a period of use, operators can directly remove the sealing component from the installation port and insert a new scale-inhibiting sheet into the installation chamber from the installation port. The operation is convenient and quick. Compared to related technologies that require replacing the entire scale-inhibiting valve, the above design significantly reduces replacement costs. In addition, the installation chamber design fully utilizes the internal space of the valve body, improving space utilization. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of the water outlet valve with scale inhibition function provided in this embodiment of the utility model;
[0025] Figure 2 This is a partial exploded view of the water outlet valve with scale inhibition function provided in this embodiment of the utility model;
[0026] Figure 3 This is a cross-sectional view of the water outlet valve with scale inhibition function provided in this embodiment of the utility model;
[0027] Figure 4 yes Figure 3 A partial structural diagram.
[0028] Figure label:
[0029] 1. Valve body; 11. Three-way valve section; 110. Three-way valve chamber; 1101. Main valve chamber; 1102. First chamber; 1103. Second chamber; 111. Hot water inlet; 112. First fluid outlet; 113. Second fluid outlet; 12. Second valve section; 121. First flow channel; 122. Second flow channel; 123. Bathroom passage; 124. Mounting port; 125. Mounting chamber; 1251. Limiting step; 13. Bypass valve section; 131. Bypass passage;
[0030] 2. Scale inhibition assembly; 21. Filter screen; 22. Scale inhibition plate;
[0031] 3. Switching mechanism; 4. Sealing component; 5. Bypass valve; 6. Sealing component. Detailed Implementation
[0032] Before explaining any embodiment of the present invention in detail, it should be understood that the present invention is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0033] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0034] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.
[0035] In this invention, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0036] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values not using relative terms should also be disclosed as specific values with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.
[0037] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.
[0038] In this utility model, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when one element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent the direct orientation but can also be understood as the lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0039] Figure 1 A schematic diagram of the structure of the water outlet valve with scale inhibition function provided in this embodiment is shown. Figure 2 A partially exploded view of the water outlet valve with scale inhibition function provided in this embodiment is shown. Figures 1-2As shown, this embodiment provides a water outlet valve (hereinafter referred to as the water outlet valve) with scale inhibition function, which is applied to the water circuit system of a wall-hung boiler. The water outlet valve includes a valve body 1, which has a hot water inlet 111, a heating interface, a first flow channel 121, a second flow channel 122, and a bathroom passage 123. The hot water inlet 111 is connected to the hot water outlet of the combustion chamber of the wall-hung boiler water circuit system, and the hot water inlet 111 can selectively connect to the heating interface or the first flow channel 121. The first flow channel 121 and the second flow channel 122 are both used to connect to the heat exchange structure of the wall-hung boiler water circuit system. During operation, when the hot water inlet 111 is connected to the heating interface, the hot water in the combustion chamber flows sequentially through the hot water inlet 111 and the heating interface into the heating system to provide heating for users. The water in the heating system, after exchanging heat with the outside, can flow back to the combustion chamber through the inlet valve of the wall-mounted boiler water circuit system to be reheated, thus forming a heating water circulation loop. When the hot water inlet 111 is connected to the first flow channel 121, the hot water in the combustion chamber flows sequentially through the hot water inlet 111 and the first flow channel 121 into the heat exchange channel of the heat exchange structure to exchange heat with the cold water in the supply channel of the heat exchange structure. After heat exchange, the water in the heat exchange channel can flow back to the combustion chamber through the inlet valve to be reheated, thus forming a heat exchange circulation loop. In addition, after the cold water in the supply channel exchanges heat with the hot water in the heat exchange channel, the cold water in the supply channel becomes warm water, and then flows sequentially through the second flow channel 122 and the bathroom channel 123 into the bathroom system to provide domestic water for users.
[0040] Of course, in other embodiments, the valve body 1 of the outlet valve may not be provided with a second flow channel and a bathroom passage. The outlet end of the first flow channel 121 is directly connected to the bathroom system. That is, when the hot water inlet 111 is connected to the first flow channel 121, the hot water in the combustion chamber can flow into the bathroom system through the hot water inlet 111 and the first flow channel 121 in sequence to provide domestic water for users.
[0041] The above are all water outlet valve solutions proposed in related technologies, and will not be described in detail in this embodiment.
[0042] Figure 3 A cross-sectional view of the outlet valve with scale inhibition function provided in this embodiment is shown. Figure 3 and combined Figure 2As shown, the scale-inhibiting water valve provided in this embodiment also includes a scale-inhibiting component 2 and a sealing component 4. The valve body 1 includes a three-way valve section 11 and a second valve section 12. A hot water inlet 111 is opened on the three-way valve section 11. The three-way valve section 11 is also provided with a first fluid outlet 112 and a second fluid outlet 113 selectively connected to the hot water inlet 111. A first flow channel 121 is opened in the second valve section 12 and is connected to the second fluid outlet 113. The first fluid outlet 112 is connected to the water inlet 113. The heating interface is connected; an installation port 124 is provided on the side wall of the second valve part 12, and the installation port 124 extends into the interior of the second valve part 12 along its own axis to form an installation chamber 125 that communicates with the first flow channel 121; the sealing member 4 is detachably sealed at the installation port 124; the scale inhibition assembly 2 includes a filter screen 21 and a scale inhibition plate 22, both of which are installed in the installation chamber 125, and the scale inhibition plate 22 is located between the filter screen 21 and the installation port 124.
[0043] The scale-inhibiting water valve provided in this embodiment, by setting up the scale-inhibiting component 2, allows water flowing into the first flow channel 121 to pass through the filter screen 21 and flow into the installation chamber 125 when the hot water inlet 111 is connected to the first flow channel 121. The scale-inhibiting plate 22 can slowly dissolve and release upon contact with water, generating a large number of weakly charged groups. These groups interact with cations such as copper, iron, calcium, and magnesium ions, as well as anions such as carbonate, bicarbonate, and sulfate ions in the water, creating a weak electrical interference effect. This rapidly deactivates the scale-forming factors in the water, requiring only a very small amount of dissolution and release. The scale inhibitor 22 can fundamentally prevent the formation of scale, and the scale inhibitor 22 is food-grade and harmless to humans and the environment. After a period of use, the operator can directly remove the sealing part 4 from the installation port 124 and then put the new scale inhibitor 22 into the installation chamber 125 through the installation port 124. The operation is convenient and quick. Compared with the solution of replacing the entire scale inhibitor valve in related technologies, the above setting can greatly reduce the replacement cost. In addition, the setting of the installation chamber 125 can make full use of the internal space of the valve body 1 and improve the space utilization rate.
[0044] Optionally, scale inhibitor 22 is an MSAP scale inhibitor.
[0045] Optionally, the number of scale inhibitors 22 is at least two, and at least two scale inhibitors 22 are disposed in the installation chamber 125 to improve the scale inhibition effect, extend the service life of the scale inhibition assembly 2, and reduce the replacement frequency of the scale inhibitors 22.
[0046] like Figure 2 and Figure 3As shown, in some embodiments, the length of the line connecting any two points on the scale inhibitor 22 is less than the inner diameter of the mounting chamber 125. This arrangement allows the scale inhibitor 22 to rotate within a certain angle range in the mounting chamber 125, thereby enabling it to fully contact the water in the mounting chamber 125 and further improving the scale inhibition effect.
[0047] In some embodiments, the length of the line connecting any two points on the scale inhibitor 22 is less than the depth of the mounting chamber 125. This arrangement allows the scale inhibitor 22 to rotate within a certain angle range in the mounting chamber 125, thereby ensuring sufficient contact between it and the water in the mounting chamber 125 and further improving the scale inhibition effect.
[0048] In some embodiments, the length of the line connecting any two points on the scale inhibitor 22 can be set to be less than both the inner diameter and depth of the mounting chamber 125, so that the scale inhibitor 22 can rotate 360° in the mounting chamber 125, thus achieving the same effect.
[0049] Optionally, the filter screen 21 is a plastic filter screen, which can reduce scaling problems caused by metal leaching from the material itself.
[0050] Figure 4 It shows Figure 3 A schematic diagram of a local structure. (For example...) Figure 4 and combined Figure 2 , Figure 3 As shown, a limiting step 1251 is formed on the cavity wall of the installation chamber 125 near the first flow channel 121, and one end of the filter screen 21 abuts against the limiting step 1251. The limiting step 1251 can limit the filter screen 21 to prevent the filter screen 21 from entering the first flow channel 121 with the water flow when the water flow velocity in the first flow channel 121 is too high. This would expose the scale inhibitor 22 to the first flow channel 121 and allow it to flow into the heat exchange structure with the water flow, thus affecting the scale inhibition function of the outlet valve.
[0051] Optionally, the filter screen 21 is detachably connected to the mounting chamber 125 to facilitate the installation and removal of the filter screen 21 from the valve body 1. After a period of use, the operator can remove the sealing part 4 and replace the filter screen 21 in the mounting chamber 125 to prevent the mesh of the filter screen 21 from becoming clogged after prolonged use. In this embodiment, the filter screen 21 is interference-fitted into the mounting chamber 125. The operator only needs to insert the filter screen 21 into the mounting chamber 125 through the mounting port 124 and make it abut against the limiting step 1251, which is convenient and secure. Of course, in other embodiments, the filter screen 21 can also be installed in the mounting chamber 125 by snap-fit, which can achieve the same effect.
[0052] Optionally, the outer surface of the filter screen 21 is coated with a silver ion coating, which can sterilize tap water and inhibit bacterial growth, so as to provide users with safe and healthy drinking water.
[0053] like Figure 4 As shown, to ensure the sealing between the sealing element 4 and the mounting port 124, a sealing element 6 is provided between the sealing element 4 and the mounting port 124 to prevent water in the mounting chamber 125 from leaking through the gap between the sealing element 4 and the mounting port 124. The sealing element 6 is a rubber sealing ring, which provides good sealing performance, is easy to install, and has low cost.
[0054] Continue as Figure 3 As shown, the three-way valve section 11 also has a three-way valve chamber 110. The three-way valve chamber 110 includes a first chamber 1102, a main valve chamber 1101, and a second chamber 1103 connected sequentially along its axial direction. The main valve chamber 1101 is connected to the hot water inlet 111, and the main valve chamber 1101 can selectively connect to the first chamber 1102 or the second chamber 1103. The heating interface is connected to the first chamber 1102, that is, the first fluid outlet 112 is the outlet of the first chamber 1102. The first flow channel 121 is connected to the second chamber 1103, that is, the second fluid outlet 113 is the outlet of the second chamber 1103. When the main valve chamber 1101 is connected to the first chamber 1102, the hot water in the combustion chamber can circulate in the heating water circulation loop; when the main valve chamber 1101 is connected to the second chamber 1103, the hot water in the combustion chamber can circulate in the heat exchange circulation loop.
[0055] Optionally, the outlet valve further includes a switching mechanism 3, which is movably disposed in the three-way valve chamber 110 to selectively connect the three-way valve chamber 110 to the heating interface or the first flow channel 121. That is, through the movement of the switching mechanism 3 in the three-way valve chamber 110, the passage between the main valve chamber 1101 and the first chamber 1102, or the passage between the main valve chamber 1101 and the second chamber 1103, can be selectively opened, thereby achieving three-way switching. This embodiment will not elaborate on the specific structure and working principle of the switching mechanism 3. Switching mechanisms applicable to outlet valves in related technologies to achieve three-way switching in the three-way valve chamber are all within the protection scope of this embodiment.
[0056] Furthermore, the outlet valve also includes a drive mechanism (not shown in the figure), the output end of which is connected to the switching mechanism 3 to drive the switching mechanism 3 to move within the three-way valve chamber 110. In this embodiment, the drive mechanism can be a synchronous motor, a stepper motor, a servo motor, or other drive devices.
[0057] like Figure 1 and Figure 3As shown, the outlet valve also includes a bypass valve 5, and the valve body 1 also includes a bypass valve section 13. The bypass valve section 13 is integrally formed on the side of the three-way valve section 11. A bypass channel 131 is provided in the bypass valve section 13. One end of the bypass channel 131 is connected to the first fluid outlet 112. The bypass channel 131 intersects and connects with the first flow channel 121, and the bypass valve 5 is provided in the bypass channel 131. By setting the bypass valve section 13 on the side of the three-way valve section 11, and the bypass channel 131 of the bypass valve section 13 intersects and connects with the first flow channel 121, the bypass valve section 13 can be set between the three-way valve section 11 and the second valve section 12, so as to make full use of the space between the three-way valve section 11 and the second valve section 12, greatly reducing the size of the outlet valve in the width direction, thereby meeting the miniaturization design requirements of the entire wall-hung boiler water circuit system.
[0058] In this embodiment, the bypass valve 5 is a one-way valve, which allows only the water in the first fluid outlet 112 to flow through the bypass valve 5 into the first flow channel 121, thus preventing backflow. One-way valves are existing technology, and the specific structure and working principle of the one-way valve will not be described in detail in this embodiment.
[0059] It should be noted that when the hot water inlet 111 is connected to the first fluid outlet 112, the water in the first fluid outlet 112 can flow through the bypass channel 131 to the first flow channel 121 to replenish the heat exchange structure, thereby preventing the heat exchange structure from being damaged due to dry burning due to lack of water. At the same time, it can also achieve the purpose of depressurization by circulating the fluid inside the wall-hung boiler.
[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.
Claims
1. A water outlet valve having a scale inhibiting function, characterized by comprising: include: The valve body (1) includes a three-way valve section (11) and a second valve section (12). The three-way valve section (11) is provided with a hot water inlet (111) and a first fluid outlet (112) and a second fluid outlet (113) selectively connected to the hot water inlet (111). The second valve section (12) is provided with a first flow channel (121) connected to the second fluid outlet (113). An installation port (124) is provided on the side wall of the second valve section (12). The installation port (124) extends axially into the interior of the second valve section (12) to form an installation chamber (125) connected to the first flow channel (121). The sealing element (4) is detachably sealed at the mounting port (124); The scale inhibition assembly (2) includes a filter screen (21) and a scale inhibition plate (22), both of which are installed in the mounting chamber (125), and the scale inhibition plate (22) is located between the filter screen (21) and the mounting port (124).
2. The outlet valve with scale inhibition function according to claim 1, characterized in that, The number of scale inhibitors (22) is at least two.
3. The outlet valve with scale inhibition function according to claim 1, characterized in that, The length of the line connecting any two points on the scale inhibitor (22) is less than the inner diameter of the mounting chamber (125).
4. The outlet valve with scale inhibition function according to claim 1, characterized in that, The length of the line connecting any two points on the scale inhibitor (22) is less than the depth of the mounting chamber (125).
5. The outlet valve with scale inhibition function according to claim 1, characterized in that, A limiting step (1251) is formed on the cavity wall of the installation chamber (125) near the first flow channel (121), and one end of the filter screen (21) abuts against the limiting step (1251).
6. The outlet valve with scale inhibition function according to claim 1, characterized in that, The filter screen (21) is a plastic filter screen.
7. The outlet valve with scale inhibition function according to claim 1, characterized in that, The filter (21) is detachably connected to the mounting chamber (125).
8. The water outlet valve with scale inhibition function according to claim 7, characterized in that, The filter screen (21) is interference-fitted into the mounting chamber (125).
9. The water outlet valve with scale inhibition function according to claim 1, characterized in that, The outer surface of the filter screen (21) is coated with a silver ion plating layer.
10. The drain valve having a scale inhibition function according to any one of claims 1 to 9, characterized by A sealing element (6) is provided between the sealing element (4) and the mounting port (124).