Blending regulating valve with multi-stage regulation function

Abstract

The invention relates to a multi-stage regulation blending regulating valve, which comprises a valve body, an inlet runner, an outlet runner and a blending runner which are communicated with one another are arranged on the valve body, and the inlet runner and the outlet runner form a main runner; the blending valve element is arranged in the valve body, the flow of the blending flow channel is controlled by adjusting the opening degree, and the mixing proportion of different fluid media can be adjusted; the coarse adjustment valve element is arranged in the valve body in an up-down adjustable mode and used for controlling the opening degree of the main flow channel; the fine adjusting structure comprises a driving device, a first adjusting piece with a first adjusting hole and a second adjusting piece with a second adjusting hole, the first adjusting piece is fixed to the bottom of the coarse adjusting valve element, the first adjusting piece and the second adjusting piece are attached, the driving device is installed in the coarse adjusting valve element, and the second adjusting piece is installed in the coarse adjusting valve element. And the driving part is used for driving the second adjusting part to rotate, so that the overlap ratio of the first adjusting hole and the second adjusting hole is adjusted, and the flow is finely adjusted. The invention provides an efficient and stable flow regulation solution.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a multi-stage regulating admixture regulating valve. Background Art

[0002] In traditional fluid control systems, regulating valves are widely used to control the flow and pressure of a single fluid. However, many industrial applications require regulating and mixing multiple different fluid media to meet specific process requirements. Existing technologies typically require multiple independent valves to coordinate and achieve this mixing of different fluids. This multi-valve combination not only increases system complexity, but also leads to increased equipment footprint, higher maintenance costs, and more complex system operations.

[0003] Furthermore, traditional control valve designs typically only address the flow regulation of a single fluid and fail to effectively address the precise regulation of flow in the main flow channel. Existing control valves lack a multi-stage flow adjustment mechanism, making it difficult to precisely adjust flow over a wide range. This is particularly true in applications with highly variable operating conditions, where their regulation accuracy and response speed cannot meet demanding process requirements. Summary of the Invention

[0004] In view of this, an embodiment of the present invention provides a multi-stage regulating blending control valve, which can effectively regulate and mix a variety of fluid media, and at the same time realize multi-stage fine regulation in the main channel flow regulation, solving the complexity of the existing technology that requires multiple valves to cooperate to achieve fluid mixing, and provides a solution with simplified structure and superior performance.

[0005] The embodiment of the present application provides a multi-stage regulating admixture regulating valve, comprising: A valve body is provided with an inlet flow channel, an outlet flow channel and a mixing flow channel that are interconnected, wherein the inlet flow channel and the outlet flow channel constitute a main flow channel; A coarse adjustment valve core is arranged in the valve body in an adjustable manner up and down, and is used to control the opening of the main flow channel; A mixing valve core is mounted outside the coarse adjustment valve core, and controls the flow rate of the mixing flow channel by adjusting the opening, thereby adjusting the mixing ratio of different fluid media; The fine adjustment structure includes a driving device, a first adjusting member having a first adjusting hole and a second adjusting member having a second adjusting hole. The first adjusting member is fixed to the bottom of the coarse adjustment valve core, and the first adjusting member and the second adjusting member are in contact with each other. The driving device is installed in the coarse adjustment valve core and is used to drive the second adjusting member to rotate, thereby adjusting the overlap between the first adjusting hole and the second adjusting hole to achieve fine adjustment of the flow rate.

[0006] Optionally, a valve cover is further included, wherein the valve cover is mounted on the valve body, and the mixing valve core passes through the valve cover.

[0007] Optionally, a sealing ring is installed between the mixing valve core and the valve body, and the sealing ring is fixed by the valve cover.

[0008] Optionally, the inlet flow channel is used to introduce a fluid medium; the outlet flow channel is used to discharge the fluid medium; and the blending flow channel is used to introduce a fluid medium that needs to be blended.

[0009] Optionally, a cutout is provided at the lower end of the mixing valve core. When the mixing valve core rotates, the fluid flow area between the cutout and the mixing flow channel changes, thereby achieving the functions of opening and closing and regulating the flow rate.

[0010] Optionally, the upper portion of the coarse adjustment valve core has an external thread, the inner wall of the mixing valve core has an internal thread, and the internal thread and the external thread are meshed.

[0011] Optionally, the driving device includes a micro motor, and the micro motor drives the second adjusting member to rotate.

[0012] Optionally, the driving device further includes a coupling and a rotating shaft, and the micro motor, the coupling, the rotating shaft and the second adjusting member are connected in sequence.

[0013] Optionally, the first adjusting member is a hemispherical shell with a first adjusting hole formed thereon, the first adjusting hole being divided into an inlet and an outlet; the second adjusting member is a hemisphere with a second adjusting hole formed thereon, the second adjusting hole being divided into a connected inlet and an outlet.

[0014] Optionally, the upper ends of the coarse adjustment valve core and the admixture valve core are both equipped with handles or designed to be an external hexagon.

[0015] The beneficial effects of the present invention are: The present invention integrates the regulation and mixing functions of multiple fluid media into a single regulating valve, thereby simplifying the system structure, reducing the complexity of using multiple valves in coordination, and lowering equipment space and maintenance costs. A multi-stage regulation mode combining coarse and fine adjustments is adopted, that is, the coarse adjustment valve core is used to achieve coarse regulation and rapid opening and closing of the main flow volume, and the fine adjustment structure is used to achieve fine adjustment of the flow rate in a small range, taking into account both rapid response under large flow conditions and high-precision control under small flow conditions. The blending valve core is arranged in the valve body, and its rotation further adjusts the flow rate, thereby improving the control accuracy and stability of the blending ratio. The integrated design reduces the complexity of multi-valve coordination, reduces equipment cost and floor space. The fine adjustment structure and the blending valve core structure improve the proportional control capability of the blending fluid, and expand the regulation range and flexibility. The invention is particularly suitable for low-temperature conditions and occasions with high requirements for flow control accuracy. It has important application value and promotion prospects in industries such as chemical industry, energy, natural gas liquefaction and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a multi-stage regulating admixture regulating valve provided in an embodiment of the present invention.

[0018] Figure 2 A cross-sectional view of a multi-stage regulating admixture regulating valve provided in an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the adjustment of the mixing valve core regulating the mixing flow channel provided in an embodiment of the present invention.

[0020] Figure 4 A cross-sectional view of a coarse adjustment valve core provided in an embodiment of the present invention.

[0021] Figure 5 A three-dimensional diagram of a mixing valve core provided in an embodiment of the present invention.

[0022] Figure 6 A three-dimensional diagram of the assembly of the coarse adjustment valve core and the admixture valve core provided in an embodiment of the present invention.

[0023] Reference numerals: 1. Valve body; 11. Inlet flow channel; 12. Outlet flow channel; 13. Mixing flow channel; 2. Mixing valve core; 21. Round protrusion; 22. Cutout; 23. Internal thread; 24. First handle; 3. Coarse adjustment valve core; 31. External thread; 32. Second handle; 4. Fine adjustment structure; 41. Driving device; 42. First adjustment hole; 43. First adjustment member; 44. Second adjustment hole; 45. Second adjustment member; 46. Inlet; 47. Outlet; 5. Valve cover. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0025] The terms used in this application are intended only to describe particular embodiments and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] refer to Figures 1-6 The embodiment of the present invention provides a multi-stage adjustable mixing regulating valve, including a valve body 1, a mixing valve core 2, a coarse adjustment valve core 3 and a fine adjustment structure 4. The valve body 1 is provided with an inlet flow channel 11, an outlet flow channel 12 and a mixing flow channel 13 that are interconnected. The inlet flow channel 11 and the outlet flow channel 12 constitute a main flow channel; the mixing valve core 2 is rotatably mounted on the valve body 1, and the flow rate of the mixing flow channel 13 is controlled by adjusting the opening, so as to adjust the mixing ratio of different fluid media; the coarse adjustment valve core 3 is adjustable up and down through the mixing valve core 2. In the figure, it is used to control the opening of the main channel; the fine-adjustment structure 4 includes a driving device 41, a first adjusting member 43 with a first adjusting hole 42 and a second adjusting member 45 with a second adjusting hole 44, the first adjusting member 43 is fixed to the bottom of the coarse-adjustment valve core 3, the first adjusting member 43 and the second adjusting member 45 are in contact with each other, and the driving device 41 is installed in the coarse-adjustment valve core 3, and is used to drive the second adjusting member 45 to rotate, thereby adjusting the overlap of the first adjusting hole 42 and the second adjusting hole 44 to achieve fine-adjustment of the flow rate.

[0027] The present invention simplifies the system structure, reduces the complexity of using multiple valves in coordination, and reduces equipment footprint and maintenance costs by integrating the regulation and mixing functions of multiple fluid media into a single regulating valve. A multi-stage regulation mode combining coarse and fine adjustments is adopted, that is, the coarse adjustment valve core 3 is used to achieve coarse regulation and rapid opening and closing of the main flow volume, and the fine adjustment structure 4 is used to achieve fine adjustment of the flow rate in a small range, taking into account both rapid response under large flow conditions and high-precision control under small flow conditions. The blending valve core 2 is arranged in the valve body 1, and its rotation further adjusts the flow rate, thereby improving the control accuracy and stability of the blending ratio. The integrated design reduces the complexity of multi-valve coordination, reduces equipment cost and floor space. The fine adjustment structure 4 and the blending valve core 2 structure improve the proportional control capability of the blending fluid and expand the regulation range and flexibility.

[0028] In one embodiment, a valve cover 5 is further included. The valve cover 5 is mounted on the valve body 1, and the admixture valve core 2 passes through the valve cover 5. Furthermore, a sealing ring is installed between the admixture valve core 2 and the valve body 1, and the sealing ring is fixed by the valve cover 5 to effectively prevent fluid leakage under low temperature or high pressure conditions, ensuring the safety and reliability of the long-term operation of the valve.

[0029] In one embodiment, the inlet channel 11 is used to introduce fluid media; the outlet 47 is used to discharge fluid media; and the mixing channel 13 is used to introduce fluid media that requires mixing. This design features a simple structure and a high level of integration. The inlet channel 11, outlet channel 12, and mixing channel 13 are integrated within the valve body 1, reducing external piping connections, assembly costs, and installation space requirements.

[0030] In one embodiment, the lower end of the mixing valve core 2 extends into the outlet of the mixing flow channel 13, and a cutout 22 is provided at the lower end of the mixing valve core 2. When the mixing valve core 2 rotates, the fluid flow area between the cutout 22 and the mixing flow channel 13 changes, thereby realizing the functions of opening and closing and regulating the flow rate. The mixing valve core 2 is cylindrical as a whole, with a circular protrusion 21 on the top for positioning and fixing; the middle part is a straight cylindrical channel, and a semicircular cutout 22 is provided at the lower end, which is the main control part of the fluid channel; when the mixing valve core 2 rotates, the cutout 22 at the lower end will determine the flow area of ​​the fluid, thereby realizing the functions of opening and closing and regulating the flow rate. The design of adjusting the flow of the mixing flow channel 13 by rotation can achieve continuous adjustable and proportional control of the flow rate while ensuring the simplicity and reliability of the structure, greatly improving the adjustment accuracy and flexibility of the valve.

[0031] In one embodiment, the coarse adjustment valve core 3 has an external thread 31 on its upper portion, and the mixing valve core 2 has an internal thread 23 on its inner wall. The internal thread and the external thread 31 engage with each other. Rotation of the thread pair drives the valve core to move up and down along the axial direction, thereby adjusting the valve opening to control the fluid flow area and flow rate.

[0032] In one embodiment, the driving device 41 includes a micro motor, and the micro motor drives the second adjusting member 45 to rotate.

[0033] Furthermore, the drive device 41 includes a coupling and a rotating shaft, which are sequentially connected to the micromotor, coupling, rotating shaft, and second adjustment member 45. Rotation of the micromotor drives the second adjustment hole 44 to rotate about its axis, thereby changing the relative position of the second adjustment hole 44 and the first adjustment hole 42. This micromotor drive enables fine-angle control, allowing for more precise valve opening adjustment and ensuring stable flow and mixing ratio.

[0034] In one embodiment, the first adjusting member 43 is a hemispherical shell with a first adjusting hole 42 formed therein, which is divided into an inlet 46 and an outlet 47. The second adjusting member 45 is a hemispherical shell with a second adjusting hole 44 formed therein, which is divided into a connected inlet 46 and an outlet 47. This double-layered adjusting hole design provides both coarse and fine adjustment capabilities, ensuring a wide range of flow regulation while also enabling high-precision control through the second layer of circular holes, thereby improving the flexibility, stability, and reliability of the valve.

[0035] Without loss of generality, both the first adjustment hole 42 and the second adjustment hole 44 may be circular.

[0036] In one embodiment, the coarse adjustment valve core 3 and the admixture valve core 2 are made of wear-resistant materials and may be provided with an anti-corrosion coating to reduce wear and extend valve life.

[0037] Without loss of generality, in order to facilitate adjustment, a first handle 24 is installed at the upper end of the mixing valve core or is designed to be an external hexagon (which can be adjusted by a wrench), and a second handle 32 is installed at the upper end of the coarse adjustment valve core or is designed to be an external hexagon (which can be adjusted by a wrench).

[0038] In addition, through the up and down opening adjustment of the coarse-adjustment valve core 3, the angle adjustment of the micromotor and the proportional control of the mixing valve core 2, the three can work together: the coarse-adjustment valve core 3 first controls the overall flow rate, then the micromotor realizes precise adjustment, and finally the mixing ratio is controlled by the mixing valve core 2, thereby ensuring that the entire valve system can achieve stable, efficient and high-precision fluid regulation and mixing under multiple working conditions, and adapt to the application requirements of various complex working conditions.

[0039] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the contents disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only.

[0040] It will be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A multi-stage regulating mixing control valve, characterized in that: include: A valve body is provided with an inlet flow channel, an outlet flow channel and a mixing flow channel that are interconnected, wherein the inlet flow channel and the outlet flow channel constitute a main flow channel; A mixing valve core is rotatably mounted on the valve body, and can adjust the flow rate of the mixing flow channel by adjusting the opening, thereby adjusting the mixing ratio of different fluid media; A coarse adjustment valve core is adjustably arranged in the mixing valve core and is used to control the opening of the main flow channel; The fine adjustment structure includes a driving device, a first adjusting member having a first adjusting hole and a second adjusting member having a second adjusting hole. The first adjusting member is fixed to the bottom of the coarse adjustment valve core, and the first adjusting member and the second adjusting member are in contact with each other. The driving device is installed in the coarse adjustment valve core and is used to drive the second adjusting member to rotate, thereby adjusting the overlap between the first adjusting hole and the second adjusting hole to achieve fine adjustment of the flow rate.

2. A multi-stage regulating admixture regulating valve according to claim 1, characterized in that: A valve cover is also included, which is installed on the valve body, and the mixing valve core passes through the valve cover.

3. The multi-stage regulating admixture regulating valve according to claim 2, characterized in that: A sealing ring is installed between the mixing valve core and the valve body, and the sealing ring is fixed by the valve cover.

4. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: The inlet flow channel is used for introducing fluid medium; the outlet flow channel is used for discharging fluid medium; and the blending flow channel is used for introducing fluid medium that needs to be blended.

5. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: A cutout is provided at the lower end of the mixing valve core. When the mixing valve core rotates, the fluid flow area between the cutout and the mixing flow channel changes, thereby realizing the functions of opening and closing and regulating the flow rate.

6. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: The upper portion of the coarse adjustment valve core is provided with an external thread, and the inner wall of the mixing valve core is provided with an internal thread, and the internal thread and the external thread are meshed with each other.

7. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: The driving device includes a micro motor, and the micro motor drives the second adjusting member to rotate.

8. The multi-stage regulating admixture regulating valve according to claim 7, characterized in that: The driving device further comprises a coupling and a rotating shaft, and the micro motor, the coupling, the rotating shaft and the second adjusting member are connected in sequence.

9. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: The first adjusting member is a hemispherical shell with a first adjusting hole formed thereon, the first adjusting hole being divided into an inlet and an outlet; the second adjusting member is a hemispherical shell with a second adjusting hole formed thereon, the second adjusting hole being divided into a connected inlet and an outlet.

10. The multi-stage regulating admixture regulating valve according to claim 1, characterized in that: The upper ends of the coarse adjustment valve core and the admixture valve core are both provided with handles or designed to be external hexagonal.

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