Dynamic balance regulating valve and liquid regulating system

Abstract

The utility model discloses a dynamic balance regulating valve and liquid regulation and control system, the dynamic balance regulating valve includes: valve body, valve seat and valve core, valve seat and valve core both install in the valve body, form the inflow chamber, flow regulation chamber and outflow chamber in the valve body, form valve core chamber and valve core runner in the valve core, valve core chamber and inflow chamber intercommunication, flow regulation chamber and outflow chamber intercommunication, flow regulation chamber and outflow chamber intercommunication, flow regulation chamber and outflow chamber intercommunication, flow regulation chamber and outflow chamber intercommunication. A first flow hole is formed in the valve seat, and the valve element is further provided with a second flow hole communicated with the valve element cavity. And the balance assembly is movably arranged outside the valve element in a sleeving mode in the axial direction, the balance assembly divides the flow adjusting cavity into a first sub-cavity and a second sub-cavity, the valve element cavity communicates with the first sub-cavity through the valve element flow channel, and the first flow hole communicates with the outflow cavity through the second sub-cavity. According to the dynamic balance regulating valve, the flow of liquid entering from the flow inlet cavity can be regulated twice, the elastic piece is arranged to balance the pressure of the first sub-cavity, the balance assembly can be kept stable, and the flow of liquid flowing out from the flow outlet cavity can be kept constant.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a dynamic balance regulating valve and a liquid control system provided with the dynamic balance regulating valve. Background Art

[0002] Dynamic balancing control valves can be used to control fluid flow, etc. They can achieve precise control of the flow of the medium by automatically adjusting the opening of the valve. However, existing dynamic balancing control valves often have unsatisfactory control results when controlling the flow of liquids, and there is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a dynamic balancing regulating valve, which can regulate the flow rate of liquid entering from the inlet chamber twice, and keep the balancing component stable, thereby keeping the flow rate of liquid flowing out of the outlet chamber constant.

[0004] According to an embodiment of the utility model, a dynamic balancing regulating valve comprises: a valve body, a valve seat and a valve core, wherein the valve seat and the valve core are both installed on the valve body, wherein an inlet chamber, a flow regulating chamber and an outlet chamber are formed in the valve body, wherein a valve core chamber and a valve core flow channel are formed in the valve core, wherein the valve core chamber is communicated with the inlet chamber, the valve seat is formed with a first flow hole, and the valve core is further provided with a second flow hole communicated with the valve core chamber; a balancing component, wherein the balancing component is movably sleeved outside the valve core along the axial direction, wherein the balancing component divides the flow regulating chamber into a first sub-chamber and a second sub-chamber, wherein the valve core chamber is communicated with the first sub-chamber through the valve core flow channel, and the first flow hole is communicated with the outlet chamber through the second sub-chamber; wherein the valve core is rotatable relative to the valve seat so that the first flow hole is communicated with the second flow hole and the flow rate is adjustable, wherein the pressure in the first sub-chamber is suitable for pushing the balancing component to move into the second sub-chamber so as to adjustably block the flow rate of the first flow hole, and wherein an elastic member is provided in the second sub-chamber, wherein the elastic member is used to balance the force applied by the first sub-chamber to the balancing component.

[0005] According to the dynamic balancing regulating valve of the embodiment of the utility model, the valve core is rotated relative to the valve seat to adjust the connecting area between the first flow hole and the second flow hole, thereby performing a first regulation on the flow rate of the liquid entering from the inlet chamber. At the same time, the pressure of the first sub-chamber can push the balancing component to move into the second sub-chamber to block the first flow hole, thereby performing a second regulation on the flow rate of the liquid entering from the inlet chamber. In addition, by arranging an elastic member to balance the pressure of the first sub-chamber, the balancing component can be kept stable, thereby keeping the flow rate of the liquid flowing out of the outlet chamber constant.

[0006] According to some embodiments of the utility model, the dynamic balancing regulating valve, the valve core includes a first valve core section, a second valve core section and a third valve core section which are connected in sequence along the axial direction, the first valve core section is located in the valve seat, the valve core cavity and the second flow hole are both provided in the first valve core section, the balancing assembly is sleeved outside the second valve core section, the valve core flow channel is formed in the second valve core section, and the third valve core section is rotatably penetrated through the valve body.

[0007] According to the dynamic balancing regulating valve of some embodiments of the present invention, the first flow hole penetrates radially along the valve seat, the second flow hole penetrates radially along the first valve core section, and when the valve core rotates relative to the valve seat, the area of ​​the second flow hole and the first flow hole in the radial direction of the valve core is adjustable.

[0008] According to the dynamic balancing regulating valve of some embodiments of the present invention, the flow cross-sectional area of ​​the first flow hole is greater than or equal to the flow cross-sectional area of ​​the second flow hole.

[0009] According to the dynamic balancing regulating valve of some embodiments of the utility model, the valve core flow channel includes a first flow channel section extending axially along the second valve core section and a second flow channel section extending radially along the second valve core section, one end of the first flow channel section is connected to the valve core cavity, the inner end of the second flow channel section is connected to the other end of the first flow channel section, and the outer end of the second flow channel section is connected to the first sub-cavity.

[0010] According to the dynamic balancing regulating valve of some embodiments of the utility model, a first limit stop portion protruding radially is formed on the outside of one end of the second valve core section connected to the third valve core section, a stop surface is formed in the valve body, and a seal is provided between the first limit stop portion and the stop surface.

[0011] According to the dynamic balancing regulating valve of some embodiments of the utility model, a second limit stop portion protruding radially is formed outside one end of the second valve core section connected to the first valve core section, one end of the elastic member presses against the second limit stop portion and the other end presses against the balancing assembly.

[0012] According to some embodiments of the dynamic balancing regulating valve of the present invention, the balancing assembly includes a sliding block, which is axially slidably matched with the valve core, and the sliding block includes a partition located in the second sub-chamber, and the partition divides the second sub-chamber into an inner chamber and an outer chamber, the inner chamber is connected to the first flow hole, and the outer chamber is connected to the outflow chamber, and when the balancing assembly moves axially, the partition blocks the connection between the inner chamber and the outer chamber in an adjustable flow manner.

[0013] According to the dynamic balancing regulating valve of some embodiments of the utility model, the balancing assembly also includes a diaphragm and a pressure cap, the diaphragm is sleeved outside the sliding block and separates the first sub-cavity from the second sub-cavity, at least part of the diaphragm is located between the pressure cap and the sliding block, and the pressure cap is threadedly connected to the sliding block to press the diaphragm.

[0014] According to the dynamic balancing regulating valve of some embodiments of the utility model, the sliding block also includes a mounting portion and a limiting portion, the pressure cap is connected to the mounting portion, the limiting portion and the partitioning portion are connected to a side of the mounting portion away from the pressure cap and are spaced apart in the radial direction, and one end of the elastic member is sleeved outside the limiting portion and pressed against the mounting portion.

[0015] According to the dynamic balancing regulating valve of some embodiments of the present invention, both the first flow holes and the second flow holes are multiple and matched one-to-one, and the multiple first flow holes are spaced and distributed in the circumferential direction of the valve seat.

[0016] According to the dynamic balancing regulating valve of some embodiments of the present utility model, the flow inlet cavity and the valve core flow channel are respectively communicated with two ends of the valve core cavity.

[0017] According to the dynamic balancing regulating valve of some embodiments of the utility model, the axial direction of the inlet chamber is parallel to the axial direction of the outlet chamber, the axial direction of the flow regulating chamber intersects with the axial direction of the inlet chamber, the inlet chamber is connected to the end of the flow regulating chamber, and the outlet chamber is connected to the peripheral wall of the flow regulating chamber.

[0018] The utility model also provides a liquid regulating system.

[0019] According to the liquid control system of the embodiment of the utility model, there is provided any one of the dynamic balancing control valves described above.

[0020] The advantages of the liquid control system and the above-mentioned dynamic balance control valve over the prior art are the same and will not be elaborated here.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 The cross-sectional view of the dynamic balance regulating valve according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 2 The cross-sectional view of the dynamic balance regulating valve according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 3 A partial cross-sectional view of a dynamic balancing regulating valve according to an embodiment of the utility model Figure 1 ;

[0026] Figure 4 A partial cross-sectional view of a dynamic balancing regulating valve according to an embodiment of the utility model Figure 2 .

[0027] Reference numerals:

[0028] Dynamic balancing control valve 100,

[0029] Valve body 1, inlet chamber 11, flow regulating chamber 12, stop surface 13, first sub-chamber 121, second sub-chamber 122, inner chamber 1221, outer chamber 1222, outlet chamber 13, valve seat 2, first flow hole 21, valve core 3, second flow hole 31, valve core chamber 32, valve core flow channel 33, first flow channel section 331, second flow channel section 332, first valve core section 34, second valve core section 35, first limit stop portion 351, second limit stop portion 352, third valve core section 36, balancing assembly 4, sliding block 41, partition portion 411, mounting portion 412, limit portion 413, diaphragm 42, pressure cap 43, elastic member 5, sealing member 6, sealing ring 7, valve cover 8, fixing member 9. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Reference below Figure 1-Figure 4 The dynamic balancing regulating valve 100 according to the embodiment of the utility model is described. By setting the dynamic balancing regulating valve 100, the flow rate of the liquid entering from the inlet chamber 11 can be regulated twice, and the balancing component 4 can be kept stable, thereby keeping the flow rate of the liquid flowing out of the outlet chamber 13 constant.

[0034] like Figure 1-Figure 4 As shown, a dynamic balancing control valve 100 according to an embodiment of the present utility model includes: a valve body 1, a valve seat 2, a valve core 3 and a balancing assembly 4.

[0035] The valve seat 2 and the valve core 3 are both installed on the valve body 1. The valve body 1 is formed with an inlet chamber 11, a flow regulating chamber 12 and an outlet chamber 13. The valve core 3 is formed with a valve core chamber 32 and a valve core flow channel 33. The valve core chamber 32 is connected to the inlet chamber 11. The valve seat 2 is formed with a first flow hole 21. The valve core 3 is also provided with a second flow hole 31 connected to the valve core chamber 32.

[0036] Specifically, the valve body 1 is used to provide an installation position for other components in the dynamic balance regulating valve 100, so that an inlet chamber 11, a flow regulating chamber 12 and an outlet chamber 13 are formed in the valve body 1. The inlet chamber 11 is used to allow liquid to flow into the dynamic balance regulating valve 100, the flow regulating chamber 12 is used to adjust the flow of the liquid here, and the outlet chamber 13 is used to allow liquid to flow out of the dynamic balance regulating valve 100 from here. The valve seat 2 and the valve core 3 are both arranged on the valve body 1, so that the valve seat 2 and the valve core 3 can be installed, and the valve seat 2 is arranged At the bottom of the valve core 3, the valve seat 2 can be connected to the valve core 3, and the valve core 3 is supported by the valve seat 2. At the same time, a valve core cavity 32 and a valve core flow channel 33 are formed in the valve core 3, so that liquid can flow in the valve core cavity 32 and the valve core flow channel 33, and the valve core cavity 32 is connected to the inlet cavity 11, so that the liquid in the inlet cavity 11 can further flow into the valve core cavity 32, and the valve seat 2 forms a first flow hole 21, so that the liquid can flow out from the first flow hole 21, and the valve core 3 forms a second flow hole 31, so that the liquid can flow out from the second flow hole 31.

[0037] It should be noted that the valve seat 2 can be integrally formed of high-strength aviation material and corrosion-resistant and wear-resistant soft rubber, and the liquid in the present application can be water.

[0038] The balancing component 4 is movably sleeved outside the valve core 3 along the axial direction, and the balancing component 4 divides the flow regulating chamber 12 into a first sub-chamber 121 and a second sub-chamber 122. The valve core chamber 32 is connected to the first sub-chamber 121 through the valve core flow channel 33, and the first flow hole 21 is connected to the outlet chamber 13 through the second sub-chamber 122.

[0039] Specifically, a balancing component 4 is also provided in the dynamic balancing control valve 100. The balancing component 4 is sleeved on the outside of the valve core 3 to achieve the installation of the balancing component 4, and the balancing component 4 can move relative to the valve core 3. In addition, by providing the balancing component 4, the flow regulating chamber 12 can be divided into a first sub-chamber 121 and a second sub-chamber 122, and the first sub-chamber 121 is connected with the valve core chamber 32 through the valve core flow channel 33, so that liquid can flow from the valve core chamber 32 to the first sub-chamber 121, and the first flow hole 21 is connected with the outlet chamber 13 through the second sub-chamber 122, so that the liquid flowing out of the first flow hole 21 can flow out of the outlet chamber 13 through the second sub-chamber 122.

[0040] And, if Figure 2-Figure 4 As shown, the valve body 1 also includes a valve cover 8, which is pressed on the top of the balancing assembly 4 through a fixing member 9, and a thread and a groove are arranged on the outside of the valve cover 8 for docking with the controller.

[0041] Among them, the valve core 3 can be rotated relative to the valve seat 2 to connect the first flow hole 21 with the second flow hole 31 and the flow rate is adjustable. The pressure in the first sub-chamber 121 is suitable for pushing the balancing component 4 to move into the second sub-chamber 122 to adjustably block the flow of the first flow hole 21. An elastic member 5 is provided in the second sub-chamber 122, and the elastic member 5 is used to balance the force exerted by the first sub-chamber 121 on the balancing component 4.

[0042] Specifically, the valve seat 2 and the valve core 3 can cooperate with each other. When receiving the command of the controller, the valve core 3 rotates relative to the valve seat 2 to adjust the communication area between the first flow hole 21 and the second flow hole 31, so that the flow rate of the liquid entering from the inlet chamber 11 can be regulated for the first time, and the pressure in the first sub-chamber 121 can push the balancing component 4 to move into the second sub-chamber 122, that is, the balancing component 4 is moved into the second sub-chamber 122 so that the balancing component 4 blocks the first flow hole 21, and the blocked area can be adjusted according to the first sub-chamber 121. By adjusting the pressure in the cavity 121, the flow rate of the liquid entering from the inlet cavity 11 can be adjusted for the second time, and the flow rate of the liquid flowing out of the dynamic balance regulating valve 100 can be adjusted twice. In addition, an elastic member 5 is arranged in the second sub-cavity 122, and the elastic member 5 can be used to balance the force of the first sub-cavity 121 on the balance component 4, that is, the force of the first sub-cavity 121 and the restoring force of the elastic member 5 work together to keep the balance component 4 stable, and further keep the flow rate of the liquid flowing out of the outlet cavity 13 constant. Among them, the elastic member 5 can be a spring.

[0043] Therefore, by setting the valve body 1 to provide an installation position for other components in the dynamic balancing control valve 100, and by setting the valve core 3 and the valve seat 2 in the valve body 1, the valve core 3 can rotate relative to the valve seat 2, and the valve core 3 can rotate relative to the valve seat 2 to adjust the communication area between the first flow hole 21 and the second flow hole 31. At the same time, the pressure of the first sub-chamber 121 can push the balancing component 4 to move into the second sub-chamber 122 to block the first flow hole 21, and the elastic member 5 is set to balance the pressure of the first sub-chamber 121 so that the balancing component 4 can remain stable.

[0044] According to the dynamic balancing regulating valve 100 of the embodiment of the utility model, the valve core 3 is rotated relative to the valve seat 2 to adjust the connecting area between the first flow hole 21 and the second flow hole 31, thereby performing a first regulation on the flow rate of the liquid entering from the inlet chamber 11. At the same time, the pressure of the first sub-chamber 121 can push the balancing component 4 to move into the second sub-chamber 122 to block the first flow hole 21, thereby performing a second regulation on the flow rate of the liquid entering from the inlet chamber 11. In addition, by arranging the elastic member 5 to balance the pressure of the first sub-chamber 121, the balancing component 4 can remain stable, thereby maintaining a constant flow rate of the liquid flowing out of the outlet chamber 13.

[0045] In some embodiments, the valve core 3 includes a first valve core section 34, a second valve core section 35 and a third valve core section 36 which are connected in sequence along the axial direction. The first valve core section 34 is located in the valve seat 2, the valve core cavity 32 and the second flow hole 31 are both provided in the first valve core section 34, the balancing assembly 4 is sleeved outside the second valve core section 35, the valve core flow channel 33 is formed in the second valve core section 35, and the third valve core section 36 is rotatably penetrated through the valve body 1.

[0046] Specifically, the valve seat 2 is arranged below the valve core 3, and the first valve core section 34 is arranged in the valve seat 2, so that the first valve core section 34, the second valve core section 35 and the third valve core section 36 are arranged in sequence from bottom to top along the axial direction and connected, so that the valve core 3 is an integral whole, which can improve the overall structural strength of the valve core 3, and the valve core cavity 32 and the second flow hole 31 are both arranged in the first valve core section 34, so that the valve core cavity 32 and the second flow hole 31 are connected, so that the liquid in the valve core cavity 32 can flow out of the valve core cavity 32 from the second flow hole 31, and at the same time, the balancing component 4 is sleeved outside the second valve core section 35, so that the balancing component 4 can move relative to the valve core 3 on the outside of the second valve core section 35, and the valve core flow channel 33 is formed in the second valve core section 35, that is, the valve core flow channel 33 and the balance component 4 are spaced apart and distributed on the inner and outer sides of the second valve core section 35 to avoid the valve core flow channel 33 interfering with the balance component 4, so that the balance component 4 cannot move relative to the valve core 3, and the third valve core section 36 is passed through the valve body 1, that is, the third valve core section 36 is partially passed through the top of the valve body 1, the third valve core section 36 can be installed, and the third valve core section 36 can be rotatable relative to the valve body 1, that is, the valve core 3 can be rotatable relative to the valve body 1, and then the connecting area between the first flow hole 21 and the second flow hole 31 can be adjusted, that is, the flow rate of the liquid entering from the inlet chamber 11 can be controlled.

[0047] It should be noted that by disposing the first valve core section 34 in the valve seat 2 and penetrating the third valve core section 36 in the valve body 1 , the valve core 3 can be installed in the valve body 1 and the reliability and stability of the installation of the valve core 3 can be improved.

[0048] In some embodiments, the first flow hole 21 penetrates radially along the valve seat 2, and the second flow hole 31 penetrates radially along the first valve core section 34. When the valve core 3 rotates relative to the valve seat 2, the area of ​​the second flow hole 31 and the first flow hole 21 facing each other in the radial direction of the valve core 3 is adjustable.

[0049] Specifically, Figure 1-Figure 2As shown, the valve seat 2 is constructed into a cylindrical shape, so that the first flow hole 21 is connected in the radial direction of the valve seat 2, so that liquid can flow out from the first flow hole 21, and the valve core 3 is constructed into a circular tube shape, so that the second flow hole 31 is connected in the radial direction of the first valve core section 34, so that liquid can flow out from the second flow hole 31. At the same time, the valve seat 2 and the valve core 3 are coaxially arranged, and the first flow hole 21 and the second flow hole 31 are arranged at the same height on the valve body 1. The valve core 3 can be rotated relative to the valve seat 2 so that the first flow hole 21 and the second flow hole 31 are directly opposite or staggered in the radial direction of the valve core 3, and the area directly opposite to the first flow hole 21 and the second flow hole 31 can be adjusted, thereby adjusting the flow rate of the liquid entering from the inlet chamber 11, that is, the flow rate of the liquid flowing out of the outlet chamber 13 can be adjusted.

[0050] In some embodiments, the flow cross-sectional area of ​​the first flow hole 21 is greater than or equal to the flow cross-sectional area of ​​the second flow hole 31 .

[0051] Specifically, the first flow hole 21 is formed on the valve seat 2, and the second flow hole 31 is formed on the valve core 3, so that when the valve core 3 rotates relative to the valve seat 2, the area of ​​the first flow hole 21 and the second flow hole 31 facing each other can be adjusted, that is, by rotating the valve core 3 relative to the valve seat 2, the first flow hole 21 and the second flow hole 31 can be made to face each other or staggered at a certain angle, so as to control the flow rate of the liquid entering from the inlet chamber 11, and make the flow cross-sectional area of ​​the first flow hole 21 larger than the flow cross-sectional area of ​​the second flow hole 31, or make the flow cross-sectional area of ​​the first flow hole 21 equal to the flow cross-sectional area of ​​the second flow hole 31, so that the liquid flowing out of the second flow hole 31 can smoothly flow out of the first flow hole 21 to avoid backflow or leakage.

[0052] In some embodiments, the valve core flow channel 33 includes a first flow channel section 331 extending axially along the second valve core section 35 and a second flow channel section 332 extending radially along the second valve core section 35, one end of the first flow channel section 331 is connected to the valve core cavity 32, the inner end of the second flow channel section 332 is connected to the other end of the first flow channel section 331, and the outer end of the second flow channel section 332 is connected to the first sub-cavity 121.

[0053] Specifically, the valve core flow channel 33 is formed in the second valve core section 35, so that the valve core flow channel 33 includes two parts, namely the first flow channel section 331 and the second flow channel section 332. Even if the first flow channel section 331 and the second flow channel section 332 are both formed in the second valve core section 35, the first flow channel section 331 can extend along the axial direction of the second valve core section 35, and the second flow channel section 332 can extend along the radial direction of the second valve core section 35, and one end of the first flow channel section 331 is connected to the valve core cavity 32, so that the liquid in the valve core cavity 32 can be The liquid can flow to the first flow channel section 331. At the same time, the other end of the first flow channel section 331 is connected with the inner end of the second flow channel section 332, so that the liquid can flow from the first flow channel section 331 to the second flow channel section 332. Moreover, the outer end of the second flow channel section 332 is connected with the first sub-cavity 121, so that the liquid can further flow from the second flow channel section 332 to the first sub-cavity 121, that is, the liquid in the valve core cavity 32 can flow to the first sub-cavity 121 through the first flow channel section 331 and the second flow channel section 332.

[0054] In such Figure 1-Figure 2 In the illustrated embodiment, the valve core flow channel 33 is disposed above the valve core chamber 32, that is, when the pressure in the valve core chamber 32 changes, the liquid in the valve core chamber 32 can flow upward from the valve core chamber 32 along the valve core flow channel 33 to the first sub-chamber 121, and push the balancing assembly 4 to move downward to block the first flow hole 21, that is, to further adjust the flow rate of the liquid entering from the inlet chamber 11.

[0055] In some embodiments, a first limit stop portion 351 protruding radially is formed on the outside of one end where the second valve core segment 35 is connected to the third valve core segment 36 , a stop surface 13 is formed inside the valve body 1 , and a seal 6 is provided between the first limit stop portion 351 and the stop surface 13 .

[0056] Specifically, a first limit stopper 351 is formed outside the second valve core section 35, and the first limit stopper 351 is formed outside the end where the second valve core section 35 and the third valve core section 36 are connected, and extends outward from the outer peripheral wall of the second valve core section 35 along the radial direction of the second valve core section 35. At the same time, a stopper surface 13 is also formed in the valve body 1, and the stopper surface 13 and the first limit stopper 351 are spaced apart and distributed along the axial direction of the valve core 3. A sealing member 6 is arranged between the first limit stopper 351 and the stopper surface 13, and the sealing member 6 is used to seal the gap between the valve core 3 and the valve body 1 to prevent liquid from flowing out of the gap between the two, and can be used to reduce the friction force when the valve core 3 rotates, that is, the first limit stopper 351 and the stopper surface 13 can limit the sealing member 6 to ensure the accuracy of the installation position of the sealing member 6, thereby improving the reliability of sealing at this location. Among them, the sealing member 6 can be a polytetrafluoroethylene pad.

[0057] In some embodiments, a second limit stop 352 protruding radially is formed outside one end of the second valve core section 35 connected to the first valve core section 34 , and one end of the elastic member 5 presses against the second limit stop 352 and the other end presses against the balancing assembly 4 .

[0058] Specifically, a second limit stop 352 is formed outside the second valve core segment 35. The second limit stop 352 is formed outside one end of the second valve core segment 35 connected to the first valve core segment 34, and extends outward from the outer peripheral wall of the second valve core segment 35 along the radial direction of the second valve core segment 35. At the same time, an elastic member 5 is also provided in the second sub-cavity 122. The lower end of the elastic member 5 is pressed against the second limit stop 352, that is, the second limit stop 352 can be used to support the elastic member 5 to prevent the elastic member 5 from moving and causing failure. The upper end of the elastic member 5 is pressed against the balancing component 4, and the elastic member 5 can be fixed by the second limit stop portion 352 and the balancing component 4 to prevent the elastic member 5 from moving in position. When the balancing component 4 moves downward under the pressure of the first sub-cavity 121, the balancing component 4 can squeeze the elastic member 5 to shrink the elastic member 5. At this time, the elastic member 5 will provide an upward force to the balancing component 4 under the action of its own restoring force, so that the balancing component 4 remains stable, thereby keeping the flow rate of the liquid flowing out of the outlet cavity 13 constant.

[0059] In some embodiments, the balancing assembly 4 includes a sliding block 41, which slides axially with the valve core 3. The sliding block 41 includes a partition 411 located in the second sub-chamber 122. The partition 411 divides the second sub-chamber 122 into an inner chamber 1221 and an outer chamber 1222. The inner chamber 1221 is connected to the first flow hole 21, and the outer chamber 1222 is connected to the outflow chamber 13. When the balancing assembly 4 moves axially, the partition 411 blocks the connection between the inner chamber 1221 and the outer chamber 1222 in an adjustable flow manner.

[0060] Specifically, the sliding block 41 is sleeved on the outer side of the valve core 3 to achieve the installation of the sliding block 41, and the sliding block 41 can slide relative to the valve core 3 along the axial direction of the valve core 3. At the same time, the sliding block 41 includes a partition 411, and the partition 411 can divide the second sub-chamber 122 into an inner chamber 1221 and an outer chamber 1222, wherein the inner chamber 1221 is connected with the first flow hole 21, so that the liquid flowing out of the first flow hole 21 can flow into the inner chamber 1221, and the outer chamber 1222 is connected with the outlet chamber 13, so that the liquid in the outer chamber 1222 can flow out of the outlet chamber 13, and when the balancing component 4 moves along the axial direction of the valve core 3 under the pressure of the first sub-chamber 121, the partition 411 can block the connection between the inner chamber 1221 and the outer chamber 1222, and the blocking area is adjustable, so that the flow rate of the liquid flowing to the inner chamber 1221 and the outer chamber 1222 can be adjusted.

[0061] In some embodiments, the balancing assembly 4 also includes a diaphragm 42 and a pressure cap 43. The diaphragm 42 is sleeved outside the sliding block 41 and separates the first sub-cavity 121 from the second sub-cavity 122. At least part of the diaphragm 42 is located between the pressure cap 43 and the sliding block 41. The pressure cap 43 is threadedly connected to the sliding block 41 to press the diaphragm 42.

[0062] Specifically, the diaphragm 42 can separate the first sub-cavity 121 from the second sub-cavity 122, and the pressure cap 43 is arranged above the sliding block 41, that is, under the pressure of the first sub-cavity 121, the pressure cap 43 can push the sliding block 41 downward to move into the second sub-cavity 122 to block the first flow hole 21, so that at least part of the diaphragm 42 is located between the pressure cap 43 and the sliding block 41, and the pressure on the pressure cap 43 can be transmitted to the sliding block 41 through the diaphragm 42, so that the sliding block 41 moves downward, and at the same time, the diaphragm 42 extends outward along the radial direction of the valve core 3, so that the diaphragm 4 2 can also play a sealing role, sealing the gap between the pressure cap 43 and the sliding block 41 to prevent the liquid from flowing out of the gap therebetween, and the pressure cap 43 and the sliding block 41 are threadedly connected, that is, external threads are provided on the axial outer sides of the pressure cap 43 and the sliding block 41, so that the diaphragm 42 can be pressed tightly by the cooperation between the external threads, so that the reliability of the diaphragm 42 transmitting the pressure on the pressure cap 43 can be improved, the reliability of the sealing can be improved, and the pressure on the pressure cap 43 can be transmitted to the sliding block 41 through the threaded cooperation, so as to further improve the reliability of the pressure transmission.

[0063] In some embodiments, the sliding block 41 also includes a mounting portion 412 and a limiting portion 413, the pressure cap 43 is connected to the mounting portion 412, the limiting portion 413 and the partitioning portion 411 are connected to the side of the mounting portion 412 away from the pressure cap 43 and are radially spaced apart, and one end of the elastic member 5 is sleeved outside the limiting portion 413 and pressed against the mounting portion 412.

[0064] Specifically, a mounting portion 412 and a limiting portion 413 are provided on the sliding block 41. The mounting portion 412 is used to realize the connection between the sliding block 41 and the pressure cap 43 so that the pressure on the pressure cap 43 can be transmitted to the sliding block 41. The limiting portion 413 is used to limit the installation position of the elastic member 5 to ensure the accuracy of the installation position of the elastic member 5. The limiting portion 413 and the partition portion 411 are both connected to the side of the mounting portion 412 away from the pressure cap 43 to avoid the limiting portion 413 and the partition portion 411 affecting the connection between the mounting portion 412 and the pressure cap 43, resulting in a situation where the connection cannot be made. At the same time, the limiting portion 413 and the partitioning portion 411 can be connected to the mounting portion 412 respectively, and the limiting portion 413 and the partitioning portion 411 can be spaced apart so that there is a certain distance between the limiting portion 413 and the partitioning portion 411 to provide a mounting position for the elastic member 5. One end of the elastic member 5 is sleeved outside the limiting portion 413 and pressed against the mounting portion 412, so that the elastic member 5 can be radially limited by the limiting portion 413, and the elastic member 5 can be axially limited by the mounting portion 412 and the second limiting stop portion 352, so as to effectively improve the accuracy of the mounting position of the elastic member 5.

[0065] In some embodiments, the first flow holes 21 and the second flow holes 31 are multiple and matched one-to-one, and the multiple first flow holes 21 are spaced and distributed in the circumferential direction of the valve seat 2 .

[0066] Specifically, the second flow hole 31 is used to allow the liquid in the valve core cavity 32 to flow out of the valve core cavity 32 from here, and the first flow hole 21 is used to allow the liquid flowing out of the second flow hole 31 to flow from here to the outlet cavity 13. The first flow hole 21 and the second flow hole 31 are both multiple, which can increase the flow speed of the liquid, and then increase the speed of regulating the flow rate of the liquid. At the same time, the first flow hole 21 and the second flow hole 31 are matched one by one, that is, for each second flow hole 31, a first flow hole 21 is provided to correspond to it, so that the liquid in the valve core cavity 32 can first flow from the second flow hole 31 to the first flow hole 21, and then flow from the first flow hole 21 to the outlet cavity 13. In addition, the multiple first flow holes 21 are spaced apart and distributed in the circumferential direction of the valve seat 2 to avoid interference between the liquids flowing out of each first flow hole 21, which causes the flow rate of the liquid to slow down.

[0067] In such Figure 1-Figure 4 In the embodiment shown, two first flow holes 21 and two second flow holes 31 are provided, and the first flow holes 21 and the second flow holes 31 are matched one by one, so that the liquid flows from the valve core cavity 32 through the second flow holes 31 and the first flow holes 21 to the outlet cavity 13. In addition, the number of the first flow holes 21 and the second flow holes 31 is not limited to that in the embodiment, and can be flexibly selected according to the actual situation and the size of the space.

[0068] In some embodiments, the inlet cavity 11 and the valve core flow channel 33 are respectively connected to two ends of the valve core cavity 32 .

[0069] Specifically, the inlet chamber 11 is connected to the valve core chamber 32 so that the liquid can flow from the inlet chamber 11 to the valve core chamber 32, and the valve core chamber 32 is connected to the valve core flow channel 33. Even if the liquid can flow from the valve core chamber 32 to the valve core flow channel 33, the inlet chamber 11 and the valve core flow channel 33 are respectively connected to the two ends of the valve core chamber 32, so that the inlet chamber 11 and the valve core flow channel 33 can be separated to prevent the liquid entering the valve core chamber 32 and the liquid flowing out of the valve core chamber 32 from interfering with each other, resulting in the inability to adjust the flow rate of the liquid. The inlet chamber 11, the valve core chamber 32 and the valve core flow channel 33 can be arranged in a straight line to facilitate the rapid flow of the liquid, thereby increasing the rate of adjusting the flow rate of the liquid, which is beneficial to improving user satisfaction.

[0070] In some embodiments, the axial direction of the inlet chamber 11 is parallel to the axial direction of the outlet chamber 13, the axial direction of the flow regulating chamber 12 intersects with the axial direction of the inlet chamber 11, the inlet chamber 11 is connected to the end of the flow regulating chamber 12, and the outlet chamber 13 is connected to the peripheral wall of the flow regulating chamber 12.

[0071] Specifically, the axial direction of the flow regulating chamber 12 is made to intersect with the axial direction of the inlet chamber 11, so that a certain angle is made between the inlet chamber 11 and the flow regulating chamber 12, and the axial direction of the inlet chamber 11 is made parallel to the axial direction of the outlet chamber 13, so that a certain angle is made between the outlet chamber 13 and the flow regulating chamber 12, so that the inlet chamber 11, the flow regulating chamber 12 and the outlet chamber 13 are Y-shaped as a whole, and the inlet chamber 11 is connected to the end of the flow regulating chamber 12, so that the liquid in the inlet chamber 11 can flow to the flow regulating chamber 12, and the flow rate of the liquid is adjusted in the flow regulating chamber 12, and the outlet chamber 13 is connected to the peripheral wall of the flow regulating chamber 12, so that the liquid in the flow regulating chamber 12 can flow out from the outlet chamber 13.

[0072] And, it should be noted that the principle formula of this application is: Wherein, k is the flow coefficient, which is only related to the opening of the first flow hole 21, A is the opening cross-sectional area, ΔP is p1-p2, p1 is the pressure in the first sub-cavity 121, and p2 is the pressure in the inner cavity 1221; at the same time, the diaphragm 42 satisfies kΔL=A when the flow is balanced. m (p1-p2), where k is the stiffness of the elastic member 5, ΔL is the deformation of the elastic member 5, and A m is the projected area of ​​the surface of the diaphragm 42.

[0073] And, if Figure 1-Figure 4As shown, two sealing rings 7 are arranged between the third valve core section 36 and the valve body 1, which are used to seal the gap between the valve core 3 and the valve body 1 to prevent liquid from flowing out of the gap between the two, and a sealing ring 7 is also arranged between the sliding block 41 and the second valve core section 35, which is used to seal the gap between the sliding block 41 and the second valve core section 35 to prevent liquid from flowing out of the gap between the two. Among them, the setting position and setting number of the sealing ring 7 can be flexibly set according to the actual situation and the size of the space.

[0074] The utility model also provides a liquid regulating system.

[0075] According to the liquid control system of the embodiment of the utility model, any one of the above-mentioned dynamic balance control valves 100 is provided. By rotating the valve core 3 relative to the valve seat 2, the communication area between the first flow hole 21 and the second flow hole 31 can be adjusted, and the flow rate of the liquid entering from the inlet chamber 11 can be regulated for the first time. At the same time, the pressure of the first sub-chamber 121 can push the balance component 4 to move into the second sub-chamber 122 to block the first flow hole 21, and the flow rate of the liquid entering from the inlet chamber 11 can be regulated for the second time. In addition, by arranging the elastic member 5 to balance the pressure of the first sub-chamber 121, the balance component 4 can be kept stable, and the flow rate of the liquid flowing out of the outlet chamber 13 can be kept constant.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dynamic balancing regulating valve, characterized in that: include: A valve body, a valve seat and a valve core, wherein the valve seat and the valve core are both installed on the valve body, an inlet flow chamber, a flow regulating chamber and an outlet flow chamber are formed in the valve body, a valve core chamber and a valve core flow channel are formed in the valve core, the valve core chamber is communicated with the inlet flow chamber, a first flow hole is formed on the valve seat, and the valve core is also provided with a second flow hole communicated with the valve core chamber; A balancing component, the balancing component is movably sleeved outside the valve core along the axial direction, the balancing component divides the flow regulating chamber into a first sub-chamber and a second sub-chamber, the valve core chamber is communicated with the first sub-chamber through the valve core flow channel, and the first flow hole is communicated with the outflow chamber through the second sub-chamber; Wherein, the valve core is rotatable relative to the valve seat to connect the first flow hole with the second flow hole and the flow rate is adjustable, the pressure in the first sub-chamber is suitable for pushing the balancing component to move into the second sub-chamber to adjustably block the flow of the first flow hole, and an elastic member is provided in the second sub-chamber, and the elastic member is used to balance the force applied by the first sub-chamber to the balancing component.

2. The dynamic balancing control valve according to claim 1, characterized in that: The valve core includes a first valve core section, a second valve core section and a third valve core section which are connected in sequence along the axial direction, the first valve core section is located in the valve seat, the valve core cavity and the second flow hole are both provided in the first valve core section, the balancing assembly is sleeved outside the second valve core section, the valve core flow channel is formed in the second valve core section, and the third valve core section is rotatably penetrated through the valve body.

3. The dynamic balance regulating valve according to claim 2, characterized in that: The first flow hole penetrates radially of the valve seat, the second flow hole penetrates radially of the first valve core section, and when the valve core rotates relative to the valve seat, the area of ​​the second flow hole and the first flow hole facing each other in the radial direction of the valve core is adjustable.

4. The dynamic balancing regulating valve according to claim 3, characterized in that: A flow cross-sectional area of ​​the first flow hole is greater than or equal to a flow cross-sectional area of ​​the second flow hole.

5. The dynamic balance regulating valve according to claim 2, characterized in that: The valve core flow channel includes a first flow channel section extending axially along the second valve core section and a second flow channel section extending radially along the second valve core section, one end of the first flow channel section is connected to the valve core cavity, the inner end of the second flow channel section is connected to the other end of the first flow channel section, and the outer end of the second flow channel section is connected to the first sub-cavity.

6. The dynamic balance regulating valve according to claim 2, characterized in that: A first position limiting stop portion protruding radially is formed outside one end of the second valve core segment connected to the third valve core segment, a stop surface is formed inside the valve body, and a sealing member is provided between the first position limiting stop portion and the stop surface.

7. The dynamic balance regulating valve according to claim 2, characterized in that: A second limit stop portion protruding radially is formed outside one end of the second valve core section connected to the first valve core section, one end of the elastic member presses against the second limit stop portion and the other end presses against the balancing assembly.

8. The dynamic balancing control valve according to claim 1, characterized in that: The balancing assembly includes a sliding block, which is axially slidably matched with the valve core. The sliding block includes a partition located in the second sub-chamber, and the partition divides the second sub-chamber into an inner chamber and an outer chamber. The inner chamber is connected to the first flow hole, and the outer chamber is connected to the outflow chamber. When the balancing assembly moves axially, the partition blocks the connection between the inner chamber and the outer chamber in an adjustable flow rate.

9. The dynamic balancing regulating valve according to claim 8, characterized in that: The balancing assembly also includes a diaphragm and a pressure cap. The diaphragm is sleeved outside the sliding block and separates the first sub-cavity from the second sub-cavity. At least part of the diaphragm is located between the pressure cap and the sliding block. The pressure cap is threadedly connected to the sliding block to press the diaphragm.

10. The dynamic balancing regulating valve according to claim 9, characterized in that: The sliding block also includes a mounting portion and a limiting portion, the pressure cap is connected to the mounting portion, the limiting portion and the partitioning portion are connected to a side of the mounting portion away from the pressure cap and are radially spaced apart, and one end of the elastic member is sleeved outside the limiting portion and pressed against the mounting portion.

11. The dynamic balancing control valve according to claim 1, characterized in that: The first flow holes and the second flow holes are both multiple and matched one-to-one, and the multiple first flow holes are distributed at intervals in the circumferential direction of the valve seat.

12. The dynamic balancing control valve according to claim 1, characterized in that: The inlet cavity and the valve core flow channel are respectively communicated with two ends of the valve core cavity.

13. The dynamic balancing control valve according to claim 1, characterized in that: The axial direction of the inlet cavity is parallel to the axial direction of the outlet cavity, the axial direction of the flow regulating cavity intersects with the axial direction of the inlet cavity, the inlet cavity is connected to the end of the flow regulating cavity, and the outlet cavity is connected to the peripheral wall of the flow regulating cavity.

14. A liquid control system, characterized in that: A dynamic balancing regulating valve according to any one of claims 1 to 13 is provided.

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