Flow regulating proportional valve

Abstract

This disclosure relates to the field of inlet and outlet water valve bodies for wall-hung boilers, specifically providing a flow regulating proportional valve, including a valve body and a drive component. The valve body has an inlet and outlet water pipe, and a baffle plate inside the inlet and outlet water pipe separates them into a first inlet / outlet water channel and a second inlet / outlet water channel. A valve chamber is formed within the valve body, connecting the first and second inlet / outlet water channels. The drive component is mounted on the valve body, and its output end has a sealing mechanism. Under the drive of the drive component, the sealing mechanism can change the opening degree of the valve chamber. The flow regulating proportional valve of this disclosure, driven by the drive component, can change the opening degree of the valve chamber through the sealing mechanism, thereby regulating the flow rate of fluid entering from the inlet water channel, passing through the valve chamber, and reaching the outlet water channel.

Description

Technical Field

[0001] This disclosure relates to the field of inlet and outlet water valve bodies for wall-hung boilers, and more particularly to a flow regulating proportional valve. Background Technology

[0002] In household piping systems equipped with wall-hung boilers, the heat exchange efficiency varies depending on the boiler's heat output. To ensure effective heat exchange, a flow-limiting ring is typically added to the inlet channel of the boiler's inlet valve to restrict the amount of cold water entering, thus achieving the effect of heating the incoming water to a suitable temperature even with limited heat output.

[0003] For example, a 20kW wall-mounted boiler can only heat cold water from 5℃ to 40℃ at a maximum flow rate of 8L / min. In summer, when the external temperature is high, the cold water temperature can reach 25℃. If the flow-limiting ring still restricts the flow rate to 8L / min, the water temperature will rise rapidly, potentially exceeding 40℃ and causing scalding. In this case, the flow rate needs to be increased from 8L / min to 10L / min or higher, but since the flow-limiting ring's flow rate is fixed, it cannot effectively solve this problem. Summary of the Invention

[0004] The main objective of this disclosure is to provide a flow regulating proportional valve that can adjust the inlet water flow of a wall-hung boiler, so as to at least solve the above-mentioned technical problems existing in the prior art.

[0005] To achieve the above objectives, this disclosure provides a flow regulating proportional valve, including a valve body and a drive component. The valve body is provided with an inlet and outlet water pipe, and a baffle is provided inside the inlet and outlet water pipe to separate the inlet and outlet water pipe into a first inlet and outlet water channel and a second inlet and outlet water channel. A valve cavity is opened in the valve body, and the first inlet and outlet water channel and the second inlet and outlet water channel are connected through the valve cavity. The drive component is mounted on the valve body, and a blocking mechanism is provided at the output end of the drive component. Under the drive of the drive component, the blocking mechanism can change the opening degree of the valve cavity.

[0006] In one possible implementation, one of the first inlet / outlet channel and the second inlet / outlet channel is an inlet channel and the other is an outlet channel, wherein the water flow diameter of the inlet channel is smaller than that of the outlet channel.

[0007] In one embodiment, a water supply valve is integrated on the valve body, and the water supply inlet of the water supply valve is connected to the valve cavity.

[0008] In one possible implementation, the driving element is a servo motor.

[0009] In one embodiment, the servo motor includes a motor body and an adjusting valve core. A valve port is provided in the valve cavity, and a blocking part for blocking the valve port is provided on the adjusting valve core. During the movement of the adjusting valve core, the size of the opening between the blocking part and the valve port also changes accordingly.

[0010] In one embodiment, a guide insertion groove is provided in the valve body, and the free end of the regulating valve core is inserted into the guide insertion groove.

[0011] In one embodiment, the valve body is provided with a mounting port for mounting the servo motor, and the servo motor further includes a sealing sleeve, which is fitted over the regulating valve core and seals against the mounting port.

[0012] In one possible implementation, the driving element is a solenoid valve.

[0013] In one embodiment, the valve body is provided with a valve seat for mounting the solenoid valve, and the valve seat is provided with a first fluid channel connecting the first inlet / outlet water channel and the second inlet / outlet water channel. The output end of the solenoid valve is located on the path of the first fluid channel, and the solenoid valve can open or close the first fluid channel by controlling the movement of its output end.

[0014] In one embodiment, the valve seat is provided with a second fluid channel so that the first inlet / outlet water channel and the second inlet / outlet water channel are directly connected through the second fluid channel.

[0015] In one embodiment, a flow-limiting ring is provided at the bottom of the second fluid channel.

[0016] In one embodiment, a limiting platform is provided on the periphery of the second fluid channel, and the water outlet end of the flow limiting ring abuts against the limiting platform.

[0017] The flow regulating proportional valve disclosed herein, on the one hand, divides an inlet and outlet water pipe into a first inlet / outlet channel and a second inlet / outlet channel by a partition, wherein one of the first inlet / outlet channel and the second inlet / outlet channel is an inlet channel and the other is an outlet channel. The water flow diameter of the inlet channel is smaller than that of the outlet channel, which can reduce the water resistance of water entering from the inlet channel and exiting from the outlet channel; on the other hand, the opening degree of the valve chamber can be changed by driving the lower sealing mechanism through the driving component. Here, the opening degree of the valve chamber refers to the size of the opening at the connection with the inlet channel, that is, the flow rate of the fluid entering from the inlet channel, passing through the valve chamber and reaching the outlet channel can be adjusted.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0019] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0020] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0021] Figure 1 This is a schematic diagram of the structure of a flow regulating proportional valve according to an embodiment of the present disclosure;

[0022] Figure 2 yes Figure 1 A cross-sectional view of the first section of the flow regulating proportional valve in the image;

[0023] Figure 3 yes Figure 1 A cross-sectional view of the second section of the flow regulating proportional valve in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of a flow regulating proportional valve according to another embodiment of the present disclosure;

[0025] Figure 5 yes Figure 4 A cross-sectional view of the flow regulating proportional valve in the middle;

[0026] Figure 6 This is a cross-sectional view of a flow-limiting ring installed on a valve seat according to an embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of a flow-limiting ring installed behind a valve seat according to an embodiment of this disclosure;

[0028] Figure 8 This is a schematic diagram of the structure of a valve seat according to an embodiment of the present disclosure.

[0029] The above figures include the following reference numerals:

[0030] 1. Valve body; 11. Inlet / outlet pipes; 111. First inlet / outlet channel; 112. Second inlet / outlet channel; 12. Valve cavity; 121. Valve port; 13. Water supply valve; 131. Water supply inlet; 132. Water supply outlet; 14. Guide insertion groove; 15. Mounting port; 16. Valve seat; 161. First fluid channel; 162. Second fluid channel; 163. Connecting port; 164. Limiting platform; 17. Flow limiting ring;

[0031] 2. Drive component; 21. Servo motor; 211. Motor body; 212. Regulating valve core; 2121. Sealing part; 213. Sealing sleeve; 2131. Transmission mating part; 2132. Inner sealing part; 2133. Outer sealing part; 2141. First sealing element; 2142. Second sealing element; 22. Solenoid valve; 221. Sealing gasket. Detailed Implementation

[0032] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0033] It is important to understand that, in the description of this disclosure, when a component is referred to as "set on," "attached to," or "mounted on" another component, it can be directly set on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0034] When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present. Conversely, when a component is said to be "directly" connected to another component, there are no intermediate components.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Terms involving directionality, such as "first direction" and "second direction," refer to a straight line direction unless otherwise explicitly specified.

[0036] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. In the description of this disclosure, "a plurality of" means two or more. The term "or / and" as used in this disclosure includes any and all combinations of one or more of the associated listed items.

[0037] Reference Figure 1 and Figure 2To achieve adjustable water inlet flow rate of a wall-hung boiler, this disclosure provides a flow regulating proportional valve, which includes a valve body 1 and a drive component 2. The valve body 1 is provided with an inlet / outlet pipe 11, and a baffle is provided inside the inlet / outlet pipe 11 to divide the inlet / outlet pipe 11 into a first inlet / outlet channel 111 and a second inlet / outlet channel 112. A valve cavity 12 is provided inside the valve body 1, and the first inlet / outlet channel 111 and the second inlet / outlet channel 112 are connected through the valve cavity 12. The drive component 2 is installed on the valve body 1, and a blocking mechanism is provided at the output end of the drive component 2. Under the drive of the drive component 2, the blocking mechanism can change the opening degree of the valve cavity 12.

[0038] Reference Figure 2 In the embodiments of this disclosure, one of the first inlet / outlet channel 111 and the second inlet / outlet channel 112 is an inlet channel, and the other is an outlet channel. The water flow diameter of the inlet channel is smaller than that of the outlet channel, so that the cross-sectional areas of the inlet channel and the outlet channel can be in a certain ratio. That is, when the ratio of the cross-sectional area S1 of the inlet channel to the cross-sectional area S2 of the outlet channel, S1 / S2 < 1, the water resistance of water entering through the inlet channel and exiting through the outlet channel will be reduced. The opening degree of the valve cavity 12 mentioned above refers to the size of the opening at the connection with the inlet channel.

[0039] In the embodiments disclosed herein, one of the first inlet / outlet channel 111 and the second inlet / outlet channel 112 is an inlet channel, and the other is an outlet channel. The following embodiments will be described using the first inlet / outlet channel 111 as the inlet channel and the second inlet / outlet channel 112 as the outlet channel.

[0040] Reference Figure 1 and Figure 3 In the embodiments disclosed herein, depending on the requirements of the usage scenario, a water supply valve 13 can be integrated on the valve body 1. The water supply valve 13 is provided with a water supply inlet 131, a water supply outlet 132, and an adjustment switch. The water supply inlet 131 of the water supply valve 13 is connected to the valve cavity 12. When the adjustment switch is opened, the water supply inlet 131 and the water supply outlet 132 are connected, and water can be supplied to other channels that need water supply through the water supply outlet 132. When the adjustment switch is closed, the water supply inlet 131 and the water supply outlet 132 are not connected, and water can still flow into the valve cavity 12 through the water supply inlet 131. It should be noted that when the water supply valve 12 is integrated on the valve body 1, the water supply inlet 131 is a normally open water inlet channel. Therefore, the cross-sectional area of ​​the total water flow channel of the water supply inlet 131 and the first water inlet / outlet channel 111 should be controlled to be smaller than that of the second water inlet / outlet channel 112, so as to still achieve the purpose of reducing water resistance.

[0041] Reference Figure 1-3In the embodiments of this disclosure, the driving component 2 is a servo motor 21, which includes a motor body 211 and a regulating valve core 212. A valve port 121 is provided within the valve cavity 12. The regulating valve core 212 is provided with a blocking portion 2121 for sealing the valve port 121. During the movement of the regulating valve core 212, the size of the opening between the blocking portion 2121 and the valve port 121 also changes accordingly. When the regulating valve core 212 is in the first position, the blocking portion 2121 is closest to the valve port 121, and the opening of the valve port 121 is at its smallest, resulting in the minimum water flow through the valve port 121. When the regulating valve core 212 is in the second position, the blocking portion 2121 is furthest from the valve port 121, and the opening of the valve port 121 is at its largest, resulting in the maximum water flow through the valve port 121. In this embodiment, the water flow through the valve port 121 can be adjusted between a minimum and a maximum value.

[0042] In the embodiments of this disclosure, a guide insertion groove 14 is provided at the end of the valve cavity 12 away from the servo motor 21. The free end of the regulating valve core 212 extends into the valve cavity 12 and can slide with the guide insertion groove 14. When the servo motor 21 drives the regulating valve core 212 to move, the regulating valve core 212 can be guided and limited by the guide insertion groove 14 to ensure the stability of the regulating valve core 212 when it moves.

[0043] In the embodiments of this disclosure, the valve body 1 is provided with a mounting port 15 for mounting the servo motor 21. In order to enhance the sealing between the mounting port 15 and the servo motor 21, a sealing sleeve 213 is provided inside the mounting port 15, and the sealing sleeve 213 is fitted on the outside of the regulating valve core 212.

[0044] In the embodiments of this disclosure, the sealing sleeve 213 includes a transmission engagement portion 2131 and an inner sealing portion 2132. The transmission engagement portion 2131 is threadedly engaged with the regulating valve core 212 to increase the transmission support for the regulating valve core 212. The inner sealing portion 2132 is sealed to the regulating valve core 212 by a first sealing member 2141 to enhance the sealing between the transmission part of the regulating valve core 212 and the area through which the fluid flows in the valve body 1.

[0045] In the embodiments of this disclosure, the sealing sleeve 213 includes an outer sealing portion 2133, which is sealed to the mounting port 15 by a second sealing member 2142 to enhance the sealing between the servo motor 21 and the area through which the fluid flows in the valve body 1, thereby protecting the power components.

[0046] In the embodiments of this disclosure, both the first sealing member 2141 and the second sealing member 2142 can be O-rings, and the number of layers of O-rings is not limited. For example, Figure 2 As shown, the first seal 2141 can optionally be provided with two layers. In embodiments not shown, the first seal 2141 can also be provided with one or more layers.

[0047] In the embodiments of this disclosure, when the regulating valve core 212 is in the first position, the outer contour of the blocking part 2121 can completely cover the valve port 121, so that the minimum water flow through the valve port 121 can be close to 0, thereby increasing the adjustment range of the water flow.

[0048] In the embodiments of this disclosure, when the regulating valve core 212 is in the second position, the sealing portion 2121 abuts against the sealing sleeve 213, thereby limiting the maximum opening of the sealing portion 2121 by the position of the sealing sleeve 213, thus facilitating the determination of the maximum water flow rate. When designing this proportional valve, the maximum opening of the sealing portion 2121 can be changed by altering the length of the portion of the sealing sleeve 213 that abuts against the sealing portion 2121, thereby changing the range of water flow rate regulation.

[0049] Reference Figure 4 and Figure 5 In the embodiments of this disclosure, the driving component 2 is a solenoid valve 22. A valve seat 16 for mounting the solenoid valve 22 is provided on the valve body 1. The valve seat 16 is connected to the valve body 1 by fasteners. The valve seat 16 is provided with a first fluid channel 161 and a second fluid channel 162. The first fluid channel 161 connects the first inlet / outlet water channel 111 and the second inlet / outlet water channel 112. The output end of the solenoid valve 22 is located on the path of the first fluid channel 161. The solenoid valve 22 can open or close the first fluid channel 161 by controlling the movement of its output end. The second fluid channel 162 is a clearance groove near the inlet / outlet water pipe 11 so that the first inlet / outlet water channel 111 and the second inlet / outlet water channel 112 can be directly connected through the second fluid channel 162.

[0050] Specifically, the output end of the solenoid valve 22 is provided with a sealing gasket 221, and the first fluid passage 161 is configured as a connecting port 163 on the side of the valve seat 16 facing the solenoid valve 22. When the sealing gasket 221 abuts against the connecting port 163, the solenoid valve 22 blocks the first fluid passage 161; when the solenoid valve 22 controls the sealing gasket 221 to move away from the connecting port 163, the first fluid passage 161 opens.

[0051] Reference Figures 5-8 In the embodiments disclosed herein, a flow-limiting ring 17 is provided at the bottom of the second fluid channel 162, and a limiting platform 164 protrudes from the periphery of the second fluid channel 162, with the water outlet end of the flow-limiting ring 17 abutting against the limiting platform 164.

[0052] It should be noted that the flow-limiting ring 17 is used to limit the flow rate at the second fluid channel 162. A flow-limiting orifice is formed on the flow-limiting ring 17 to produce a stable flow rate of water. The specific structure and working principle of the flow-limiting ring 17 are existing technologies and will not be described in detail here. The flow-limiting ring 17 is limited by the limiting platform 164, ensuring that the flow-limiting ring 17 is firmly installed within the second fluid channel 162, preventing the water flow from impacting the flow-limiting ring 17 and causing it to move. Furthermore, the limiting platform 164 does not interfere with the first inlet / outlet channel 111 and the second inlet / outlet channel 112. The bottom end of the flow-limiting ring 17 is supported by the valve body 1 to prevent it from falling off.

[0053] In the embodiments of this disclosure, valve port 121 is directly connected to the first fluid channel 161 and the second fluid channel 162, respectively. Because the second fluid channel 162 is normally open, the fluid flow rate through the second fluid channel 162 is constant. When the first fluid channel 161 is closed by solenoid valve 22, the fluid flow rate through the second fluid channel 162 is constant. When the first fluid channel 161 is opened by solenoid valve 22, some fluid flows out through the first fluid channel 161 and converges with the fluid through the second fluid channel 162, thereby increasing the water flow rate in the outlet channel.

[0054] Combination Figure 5 When the water temperature is low, the solenoid valve 22 closes the first fluid channel 161, allowing cold water to flow into the second fluid channel 162 through the first inlet / outlet channel 111, and then into the second inlet / outlet channel 112, ultimately flowing to the boiler. A flow-limiting ring 17 is added to the second fluid channel 162 to restrict the amount of cold water entering, ensuring that the water is heated to a suitable temperature with limited heat power. In summer, when the water temperature is high, the same amount of gas is sufficient to heat the water to a very high temperature. At this time, the solenoid valve 22 opens the first fluid channel 161 to increase the flow rate, allowing cold water to enter the first inlet / outlet channel 111, and then simultaneously flow out through both the second fluid channel 162 and the first fluid channel 161 into the second inlet / outlet channel 112, ultimately flowing to the boiler. This prevents the heated water from being too hot and scalding the user. Therefore, the flow regulating proportional valve provided in this embodiment can adjust the flow rate according to the temperature of the weather to meet different temperature requirements and improve the user experience.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A flow regulating proportional valve characterized by, include: Valve body (1), The valve body (1) is provided with an inlet and outlet water pipe (11), and a partition is provided inside the inlet and outlet water pipe (11) to divide the inlet and outlet water pipe (11) into a first inlet and outlet water channel (111) and a second inlet and outlet water channel (112); The valve body (1) has a valve cavity (12) inside, and the first water inlet / outlet channel (111) and the second water inlet / outlet channel (112) are connected through the valve cavity (12); Drive component (2), The drive unit (2) is mounted on the valve body (1). The output end of the drive unit (2) is provided with a blocking mechanism. Under the drive of the drive unit (2), the blocking mechanism can change the opening degree of the valve chamber (12).

2. The flow regulating proportional valve of claim 1, wherein One of the first inlet / outlet channel (111) and the second inlet / outlet channel (112) is an inlet channel and the other is an outlet channel. The water flow diameter of the inlet channel is smaller than that of the outlet channel.

3. The flow regulating proportional valve of claim 2, wherein, A water supply valve (13) is integrated on the valve body (1), and the water supply inlet (131) of the water supply valve (13) is connected to the valve cavity (12).

4. The flow regulating proportional valve according to any one of claims 1 to 3, characterized in that The driving component (2) is a servo motor (21).

5. The flow regulating proportional valve of claim 4, wherein, The servo motor (21) includes a motor body (211) and a regulating valve core (212). A valve port (121) is provided in the valve chamber (12). A blocking part (2121) for blocking the valve port (121) is provided on the regulating valve core (212). During the movement of the regulating valve core (212), the size of the opening between the blocking part (2121) and the valve port (121) also changes accordingly.

6. The flow regulating proportional valve of claim 4, wherein, The valve body (1) is provided with a guide insertion groove (14), and the free end of the regulating valve core (212) is inserted into the guide insertion groove (14).

7. The flow regulating proportional valve according to claim 5 or 6, characterized in that The valve body (1) is provided with a mounting port (15) for mounting the servo motor (21). The servo motor (21) also includes a sealing sleeve (213), which is fitted over the regulating valve core (212) and seals the mounting port (15).

8. The flow regulating proportional valve according to any one of claims 1-3, characterized in that, The driving component (2) is a solenoid valve (22).

9. The flow regulating proportional valve according to claim 8, characterized in that, The valve body (1) is provided with a valve seat (16) for mounting the solenoid valve (22). The valve seat (16) is provided with a first fluid channel (161) connecting the first inlet / outlet water channel (111) and the second inlet / outlet water channel (112). The output end of the solenoid valve (22) is located on the path of the first fluid channel (161). The solenoid valve (22) can open or close the first fluid channel (161) by controlling the movement of its output end.

10. The flow regulating proportional valve according to claim 9, characterized in that, The valve seat (16) is provided with a second fluid channel (162) so that the first water inlet / outlet channel (111) and the second water inlet / outlet channel (112) are directly connected through the second fluid channel (162).

11. The flow regulating proportional valve according to claim 10, characterized in that, A flow-limiting ring (17) is provided at the bottom of the second fluid channel (162).

12. The flow regulating proportional valve according to claim 11, characterized in that, The second fluid channel (162) has a limiting platform (164) protruding from its periphery, and the water outlet end of the flow limiting ring (17) abuts against the limiting platform (164).

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