Branch regulating valve of sub-catchment device and sub-catchment device

Abstract

The utility model discloses a branch regulating valve of a water distributing and collecting device and the water distributing and collecting device, the branch regulating valve of the water distributing and collecting device comprises a shell with a water flow cavity inside, and a valve seat, a valve core movably connected with the valve seat and a valve rod fixedly connected with the valve core which are sequentially connected from bottom to top are arranged in the shell. The middle of the valve seat is hollowed out to form a water outlet flow channel, the lower end of the valve seat extends outwards from the lower end of the shell, the lower end of the valve element is movably embedded into an opening in the upper end of the water outlet flow channel, a plurality of flow channel holes formed in the vertical direction are formed in the side wall of the valve seat, and the valve rod can drive the valve element to ascend and descend to control the number of the flow channel holes communicated with the water flow cavity. The number of the communicated runner holes is changed by controlling the position of the valve core, so that the effect of respectively adjusting the flow of each branch of the sub-catchment device is realized, and the hydraulic equilibrium fluctuation of the sub-catchment device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of duct heating equipment, in particular to a manifold branch regulating valve and a manifold. Background Art

[0002] The manifold connects to the water supply pipes of the pipe network system and is primarily used for the distribution, flow regulation, and control of supply and return water. It consists of two parts: the manifold and the manifold. The manifold connects the water distribution device of the heating pipe supply pipes within the water system, while the manifold connects the water collection device of the heating pipe return pipes within the water system. Each branch of the manifold is individually regulated by branch valves, thereby adjusting the room temperature in different heating zones.

[0003] Existing branch valves in manifolds typically achieve temperature regulation through on-off regulation. When the outdoor temperature falls below a preset value, the corresponding branch valve opens; when the indoor temperature rises above a preset value, the corresponding branch valve closes, thereby regulating the indoor temperature. However, this on-off regulation of branch valves can cause fluctuations in the hydraulic balance within the manifold, affecting the flow balance in other branches and compromising the manifold's effectiveness.

[0004] In view of this, it is necessary to provide a manifold branch regulating valve that can avoid hydraulic balance fluctuations. Utility Model Content

[0005] The present utility model aims to overcome the drawback of existing manifold branch valves, which can cause fluctuations in the hydraulic balance of the manifold. The utility model provides a manifold branch regulating valve and manifold. In the manifold regulating valve, the number of flow holes communicating with the water flow chamber is changed by controlling the valve core's elevation, thereby dynamically controlling the flow rate of each branch. Furthermore, the flow rate of each branch is controlled by gradually increasing or decreasing, effectively preventing fluctuations in the hydraulic balance of the manifold.

[0006] The utility model provides a branch regulating valve of a manifold, comprising a housing with a water flow cavity therein, wherein the housing is provided with a valve seat connected sequentially from bottom to top, a valve core movably connected to the valve seat, and a valve stem fixedly connected to the valve core;

[0007] The middle part of the valve seat is hollowed out to form a water outlet channel, the lower end of the valve seat extends outward from the lower end of the shell, the lower end of the valve core can be movably embedded in the upper end opening of the water outlet channel, and the side wall of the valve seat is provided with a plurality of flow channel holes arranged in a vertical direction, and the valve stem can drive the valve core to rise and fall to control the number of the flow channel holes connected to the water flow cavity.

[0008] In one of the optional technical solutions, the valve seat is a cylindrical structure, and the side wall of the upper end of the valve seat is provided with a plurality of hole groups arranged at intervals in the vertical direction, and each of the hole groups includes at least one flow channel hole.

[0009] In one of the optional technical solutions, the number of the flow channel holes in each of the hole groups is the same.

[0010] In one of the optional technical solutions, the number of the flow channel holes gradually increases in the hole group from bottom to top.

[0011] In one of the optional technical solutions, the number of the flow channel holes gradually decreases in the hole group from bottom to top.

[0012] In one of the optional technical solutions, the flow channel holes in each of the hole groups are arranged at equal intervals.

[0013] In one of the optional technical solutions, it further includes a movable part movably connected to the shell, the movable part is fixedly connected to the upper end of the valve stem, and the movable part can control the valve stem to rise or fall.

[0014] In one of the optional technical solutions, the upper end surface of the shell is provided with an upwardly protruding fixing part, the side surface of the fixing part is provided with a threaded portion, the movable part is covered on the outer periphery of the fixing part, and the inner side surface of the movable part is engaged with the threaded portion, and the upper end of the valve stem passes through the shell and the fixing part in sequence and is fixedly connected to the upper end of the movable part.

[0015] In one of the optional technical solutions, a limiting step is provided in the valve seat below the valve core, and a sealing member is provided on the limiting step.

[0016] The technical solution of the present utility model further provides a manifold, comprising a water distribution main, a water collection main and valves, at least one of the valves being any of the aforementioned manifold branch regulating valves.

[0017] The above technical solution has the following beneficial effects:

[0018] The branch regulating valve of the manifold provided by the utility model is formed with multiple flow holes of different heights on the valve seat, and the valve core plug is arranged in the valve seat to block the flow holes. When the indoor temperature of the corresponding area of ​​the branch needs to be adjusted, the valve stem is moved to drive the valve core to move up and down, thereby changing the number of flow holes blocked by the valve core. By controlling the number of connected flow holes, a smooth flow change is achieved, replacing the unstable flow change caused by the on-off control of the valve in the existing technology, thereby significantly improving the heat transfer effect of each branch in the manifold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0020] Figure 1 This is a diagram showing the internal structure of a manifold branch regulating valve provided by one embodiment of the present utility model;

[0021] Figure 2 A schematic diagram of a manifold branch regulating valve in a fully open state provided by an embodiment of the present utility model;

[0022] Figure 3 A schematic diagram of the position of the hole groups of the manifold branch regulating valve provided in one embodiment of the utility model;

[0023] Figure 4 A cross-sectional view of a hole group of a manifold branch regulating valve provided in one embodiment of the utility model;

[0024] Figure 5 An embodiment of the present invention provides Figure 4 Flow rate change relationship diagram corresponding to the hole group;

[0025] Figure 6 A cross-sectional view of a hole group of a manifold branch regulating valve provided in one embodiment of the utility model;

[0026] Figure 7 An embodiment of the present invention provides Figure 6 Flow rate change relationship diagram corresponding to the hole group;

[0027] Figure 8 A cross-sectional view of a hole group of a manifold branch regulating valve provided in one embodiment of the utility model;

[0028] Figure 9 An embodiment of the present invention provides Figure 8 Flow rate variation diagram corresponding to hole groups.

[0029] Reference numerals in the figures:

[0030] 1. Shell; 11. Water flow chamber;

[0031] 2. Valve seat; 21. Water outlet channel; 22. Hole group; 221. Flow channel hole; 23. Limiting step; 24. Sealing element;

[0032] 3. Valve core;

[0033] 4. Valve stem;

[0034] 5. Fixing member; 51. Threaded portion;

[0035] 6. Moving parts. DETAILED DESCRIPTION

[0036] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0037] In this utility model, unless otherwise specified or limited, the term "fixed" and the like should be understood in a broad sense. For example, "fixed" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] like Figure 1 As shown, an embodiment of the present invention provides a manifold branch regulating valve, including a shell 1 with a water flow chamber 11 inside, the shell 1 is provided with a valve seat 2 connected in sequence from bottom to top, a valve core 3 movably connected to the valve seat 2 and a valve stem 4 fixedly connected to the valve core 3.

[0039] The middle part of the valve seat 2 is hollowed out to form a water outlet channel 21. The lower end of the valve seat 2 extends outward from the lower end of the shell 1. The lower end of the valve core 3 can be movably embedded in the upper end opening of the water outlet channel 21. The side wall of the valve seat 2 is provided with a plurality of flow channel holes 221 arranged in the vertical direction. The valve stem 4 can drive the valve core 3 to rise and fall to control the number of flow channel holes 221 connected to the water flow chamber 11.

[0040] Specifically, the manifold consists of a main water distribution pipe and a main water collection pipe, each with multiple branches. These branches are distributed within the indoor floor or capillary mat, providing heating or cooling for various indoor areas. Each branch is typically equipped with a valve to control its operating state. However, existing branch valves only have open or closed states. When adjusting the temperature, these valves control the state of each branch through on-off regulation. The water in each branch can only flow or remain stationary, causing the indoor temperature to fluctuate, making it impossible to maintain a relatively constant temperature, which in turn affects indoor comfort.

[0041] The manifold branch regulating valve provided by the present invention is installed in each branch. The flow rate of each branch is regulated by adjusting the opening of the branch regulating valve. Specifically, the number of flow holes 221 on the valve seat 2 that communicate with the water flow cavity 11 is changed by changing the position of the valve core 3. By providing multiple flow holes 221 arranged in a vertical direction on the valve seat 2 and changing the position of the valve core 3 to change the number of blocked flow holes 221, the effect of precisely controlling the number of connected flow holes 221 is achieved, thereby achieving dynamic regulation of the water flow of each branch under various flow conditions, and thus adjusting the operating state of the branch.

[0042] The shell 1 in the present invention can be the pipe body of a water distribution main or a water collection main. At this time, the water flow cavity 11 is the pipe cavity in the water distribution main or the water collection main. Most of the structure of the regulating valve is accommodated in the water flow cavity 11. The outlet flow channel 21 at the lower end of the regulating valve is connected to each branch. The water in the water flow cavity 11 flows through the regulating valve. When the water flows through the open regulating valve, it enters the outlet flow channel 21 through the flow channel hole 221 on the regulating valve, and then enters the branches of the water distribution and collection device. The flow rate of each branch is controlled by controlling the number of connected flow channel holes 221, thereby controlling the heat transfer efficiency or controlling the heat absorption efficiency, thereby realizing the temperature adjustment of various areas in the room.

[0043] Because the valve seat 2 and the water outlet channel 21 are integrally formed, the valve seat 2 is preferably a tubular structure with a hollowed-out center. The upper end of the valve seat 2 is formed to accommodate the valve core 3. The outer surface of the valve core 3 closely fits the inner wall of the water outlet channel 21 in the valve seat 2, avoiding any gaps and ensuring that the valve core 3 effectively blocks the channel hole 221. The channel holes 221 can be arranged on each horizontal surface of the side wall of the valve seat 2. The position and number of the channel holes 221 on each horizontal surface can be designed according to actual needs to achieve the desired flow regulation effect.

[0044] In addition, if Figure 2 As shown, when the branch of the manifold needs to transfer or absorb heat at maximum power, or the branch regulating valve needs to be flushed, in addition to controlling the valve core 3 to rise to open all the flow holes 221, the valve core 3 can also be raised to the maximum height to completely separate the valve core 3 from the valve seat 2, so that the upper end opening of the outlet flow channel 21 is completely opened, so that the water in the water flow cavity 11 can simultaneously enter the outlet flow channel 21 from the flow hole 221 and the upper end opening of the outlet flow channel 21, and enter the corresponding branch, or absorb water from the branch into the water flow cavity 11 at the maximum flow rate, so that the flow rate of the branch reaches the maximum value, so that the branch can transfer or absorb heat at the highest efficiency, so as to avoid the structure of setting the flow hole 221 on the valve seat 2 affecting the maximum efficiency of the branch regulating valve.

[0045] To sum up, in the manifold branch regulating valve provided by the embodiment of the present invention, a plurality of flow holes 221 of different heights are opened on the valve seat 2, and the valve core 3 is plugged in the valve seat 2 to block the flow holes 221. When the indoor temperature of the branch corresponding area needs to be adjusted, the valve stem 4 is moved to drive the valve core 3 to move up and down, thereby changing the number of flow holes 221 blocked by the valve core 3. By controlling the number of connected flow holes 221, a smooth flow change is achieved, replacing the unstable flow change caused by the on-off control of the valve in the prior art, thereby significantly improving the heat transfer effect of each branch in the manifold.

[0046] In one embodiment, the valve seat 2 is a cylindrical structure, and the side wall of the upper end of the valve seat 2 is provided with a plurality of hole groups 22 arranged at intervals in the vertical direction, and each hole group 22 includes at least one flow channel hole 221 .

[0047] In this embodiment, the cylindrical structure of the valve seat 2 makes the layout of the flow holes 221 more compact and uniform, which is conducive to the fine control of the flow rate. By setting a plurality of hole groups 22 of different horizontal heights, the position change of the valve core 3 can directly affect the number of flow holes 221 that are connected, thereby affecting the flow rate of the branch. The cylindrical structure of the valve seat 2 can ensure that the flow rate changes more smoothly when the number of flow holes 221 changes, avoiding the noise and energy loss caused by sudden changes in flow. In addition, the cylindrical structure of the valve seat 2 is easy to process and install, which reduces the manufacturing cost. As needed, the valve seat 2 can also adopt other shapes to adapt to different installation requirements.

[0048] In one embodiment, Figure 3 and Figure 4 As shown, the number of flow channel holes 221 in each hole group 22 is the same.

[0049] In this embodiment, each hole group 22 has the same number of flow holes 221. Providing the same number of flow holes 221 ensures uniform changes in the position of the valve core 3 and flow regulation, making the flow regulation process more intuitive and easier to control. This embodiment ensures that each hole group 22 has a consistent effect on flow during regulation, facilitating more precise flow control. Structurally, each hole group 22 has the same number of flow holes 221, facilitating processing and testing.

[0050] Furthermore, if the apertures of the flow passage holes 221 are all the same, the flow change is controlled by only changing the number of the flow passage holes 221 in each hole group 22. In this case, the relationship between the flow change of the branch regulating valve and the height of the valve core 3 is as follows: Figure 5 As shown, the height of the valve core 3 is positively correlated with the branch flow rate. By controlling the valve stem 4 to drive the valve core 3 to rise or fall, the branch flow rate can be intuitively changed.

[0051] As needed, the aperture of the flow channel hole 221 in each hole group 22 can also be set separately. The aperture of the flow channel hole 221 can be set to a different aperture, for example, the aperture of the flow channel hole 221 in the hole group 22 from bottom to top gradually increases, thereby changing the relationship between the height of the valve core 3 and the flow rate change rate to meet specific usage requirements.

[0052] In one embodiment, Figure 3 and Figure 6 As shown, the number of the flow channel holes 221 gradually increases in the hole group 22 from bottom to top.

[0053] In this embodiment, the number of flow holes 221 in the hole groups 22 gradually increases from bottom to top. When the flow demand is low, the height of the valve core 3 is relatively low, with only a small number of flow holes 221 connecting to the water flow chamber 11. As the flow demand increases, the height of the valve core 3 gradually increases. As the height of the valve core 3 rises above the height of each hole group 22, more flow holes 221 connect to the water flow chamber 11 than in the previous hole group 22, thereby achieving a gradual increase in the rate of flow change. This design is suitable for situations where flow regulation is more stable during normal use, but a higher rate of change is required during peak flow regulation. This allows for faster achievement of the target flow rate, thereby adjusting the indoor temperature more quickly.

[0054] Furthermore, if the apertures of the flow passage holes 221 are all the same, the flow change is controlled by only changing the number of the flow passage holes 221 in each hole group 22. In this case, the relationship between the flow change of the branch regulating valve and the height of the valve core 3 is as follows: Figure 7 As shown, the rate of change of branch flow gradually increases with the increase of the height of the valve core 3.

[0055] In one embodiment, Figure 3 and Figure 8 As shown, the number of the flow channel holes 221 gradually decreases in the hole group 22 from bottom to top.

[0056] In this embodiment, the hole group 22 structure gradually reduces the number of flow holes 221 from bottom to top. When the flow demand is low, the height of the valve core 3 is low, and a large number of flow holes 221 are connected to the water flow chamber 11. As the flow demand increases, the height of the valve core 3 gradually increases. When the height of the valve core 3 is higher than the height of each hole group 22, there will be fewer flow holes 221 connected to the water flow chamber 11 than the previous hole group 22, thereby achieving a gradual reduction in the flow rate change rate. This design is suitable for situations where the flow rate regulation rate is higher in normal use, but the change rate is smaller at the peak of the flow regulation, so as to achieve faster regulation at low flow rates. It is suitable for indoor environments with frequent temperature fluctuations to achieve the effect of flexible adjustment of the indoor temperature.

[0057] Furthermore, if the apertures of the flow passage holes 221 are all the same, the flow change is controlled by only changing the number of the flow passage holes 221 in each hole group 22. In this case, the relationship between the flow change of the branch regulating valve and the height of the valve core 3 is as follows: Figure 9 As shown, the rate of change of branch flow gradually decreases as the height of the valve core 3 increases.

[0058] In one embodiment, Figure 4 、 Figure 6 and Figure 8 As shown, the flow channel holes 221 in each hole group 22 are arranged at equal intervals.

[0059] In this embodiment, the equidistant arrangement of the flow holes 221 makes the water flow more uniform when passing through the valve seat 2, which is beneficial to reducing the impact and wear of the water flow on the valve. The impact force on the valve seat 2 from all directions is balanced, which can improve the durability and reliability of the valve seat 2. In addition, the equidistant arrangement of the flow holes 221 is convenient for processing and can standardize the arrangement when the number of flow holes 221 in the hole group 22 is different.

[0060] When designing the branch regulating valve, the number of hole groups 22 , the number of flow channel holes 221 in each hole group 22 , and the aperture of each flow channel hole 221 can be specifically changed according to the required flow regulation curve.

[0061] In one embodiment, Figure 1-3 As shown, it also includes a movable member 6 movably connected to the housing 1. The movable member 6 is fixedly connected to the upper end of the valve stem 4. The movable member 6 can control the rise or fall of the valve stem 4. Furthermore, the upper end surface of the housing 1 is provided with an upwardly protruding fixed member 5, and the side surface of the fixed member 5 is provided with a threaded portion 51. The movable member 6 is covered on the outer periphery of the fixed member 5, and the inner side surface of the movable member 6 is engaged with the threaded portion 51. The upper end of the valve stem 4 passes through the housing 1 and the fixed member 5 in sequence and is fixedly connected to the upper end of the movable member 6.

[0062] In this embodiment, the provision of a movable member 6 makes the adjustment of the branch regulating valve more flexible, precise, and reliable. By rotating the movable member 6, the valve stem 4 can be easily raised or lowered, thereby adjusting the openness of the flow channel hole 221. The connection between the movable member 6 and the valve stem 4 must be secure and reliable to prevent loosening or falling off during the adjustment process. As needed, other types of adjustment mechanisms, such as electric or pneumatic regulators, can also be used, or the branch regulating valve can be configured as a thermoelectric valve or an electric valve to achieve the effect of raising and lowering the valve core 3.

[0063] In one embodiment, Figure 1-3 As shown, a limiting step 23 is provided in the valve seat 2 below the valve core 3 , and a sealing member 24 is provided on the limiting step 23 .

[0064] In this embodiment, the limiting step 23 limits the position of the valve core 3 so that it will not penetrate too deeply into the water outlet channel 21. The provision of the seal 24 can prevent water from flowing out of the gap between the valve core 3 and the water outlet channel 21, thereby making the sealing between the valve seat 2 and the valve core 3 stronger, thereby ensuring the reliability and accuracy of the flow regulation. When the valve core 3 is lowered into place, the seal 24 will fit tightly against the lower end face of the valve core 3. The shape of the seal 24 matches the shape of the water outlet channel 21, and is preferably a sealing ring structure. The material of the seal 24 is a material such as metal, silicone, and rubber that can meet long-term stable use and has stable chemical and physical properties to ensure the sealing performance and durability of the seal 24.

[0065] The present invention also provides a manifold comprising a water distribution main, a water collection main, and valves, at least one of which is a branch regulating valve of any of the aforementioned manifolds. Multiple branch regulating valves are provided along the length of the water distribution main and the water collection main, extending perpendicularly to the axis of the main or main. The valve seat 2, valve core 3, and valve stem 4 of each branch regulating valve are located within the water distribution main or the water collection main. By providing branch regulating valves, each branch can be individually and smoothly regulated, ensuring that each branch receives the desired stable flow rate, thereby achieving better indoor temperature regulation.

[0066] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0067] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the scope of protection of the present invention.

Claims

1. A manifold branch regulating valve, characterized in that: The invention comprises a housing (1) having a water flow cavity (11) therein, wherein the housing (1) is provided with a valve seat (2) connected sequentially from bottom to top, a valve core (3) movably connected to the valve seat (2), and a valve stem (4) fixedly connected to the valve core (3); The middle portion of the valve seat (2) is hollowed out to form a water outlet channel (21); the lower end portion of the valve seat (2) extends outward from the lower end of the shell (1); the lower end portion of the valve core (3) can be movably embedded in the upper end opening of the water outlet channel (21); the side wall of the valve seat (2) is provided with a plurality of channel holes (221) arranged in a vertical direction; the valve stem (4) can drive the valve core (3) to rise and fall to control the number of the channel holes (221) connected to the water flow chamber (11).

2. The manifold branch regulating valve according to claim 1, characterized in that: The valve seat (2) is a cylindrical structure, and the side wall of the upper end of the valve seat (2) is provided with a plurality of hole groups (22) arranged at intervals in the vertical direction, and each hole group (22) includes at least one flow channel hole (221).

3. The manifold branch regulating valve according to claim 2, characterized in that: The number of the flow channel holes (221) in each of the hole groups (22) is the same.

4. The manifold branch regulating valve according to claim 2, characterized in that: The number of the flow channel holes (221) gradually increases in the hole group (22) from bottom to top.

5. The manifold branch regulating valve according to claim 2, characterized in that: The number of the flow channel holes (221) gradually decreases in the hole group (22) from bottom to top.

6. The manifold branch regulating valve according to any one of claims 3 to 5, characterized in that: The flow channel holes (221) in each of the hole groups (22) are arranged at equal intervals.

7. The manifold branch regulating valve according to claim 1, characterized in that: It also includes a movable part (6) movably connected to the housing (1), the movable part (6) being fixedly connected to the upper end of the valve stem (4), and the movable part (6) being capable of controlling the valve stem (4) to rise or fall.

8. The manifold branch regulating valve according to claim 7, characterized in that: The upper end surface of the shell (1) is provided with an upwardly protruding fixing member (5), and the side surface of the fixing member (5) is provided with a threaded portion (51). The movable member (6) is covered on the outer periphery of the fixing member (5), and the inner side surface of the movable member (6) is engaged with the threaded portion (51). The upper end of the valve stem (4) passes through the shell (1) and the fixing member (5) in sequence and is fixedly connected to the upper end of the movable member (6).

9. The manifold branch regulating valve according to claim 1, characterized in that: A limiting step (23) is provided in the valve seat (2) below the valve core (3), and a sealing member (24) is provided on the limiting step (23).

10. A water distribution and collection device, comprising a water distribution main, a water collection main and a valve, characterized in that: At least one of the valves is a manifold branch regulating valve according to any one of claims 1 to 9.

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