Valve device

Abstract

A valve device (100), comprising a valve seat (50), and a movable valve member (20) and a fixed valve member (10) which are arranged inside the valve seat, wherein the fixed valve member is provided with a fixed valve member flow channel comprising a plurality of first flow channels (11); the movable valve member is provided with a plurality of closing portions, such that inlets of the plurality of first flow channels are opened or closed simultaneously by means of the plurality of closing portions; and a fluid flowing into a fluid inlet (51) flows through the plurality of first flow channels and is converged and discharged from a first fluid outlet (52). By means of the synchronous opening or closing of the plurality of first flow channels, the valve device significantly improves the switching response speed, and reduces the stroke, such that the stress on the valve device is more uniform, thereby reducing wear and prolonging the service life of the valve device.

Description

Valve device Technical Field

[0001] This utility model relates to the field of fluid control, and in particular to a valve device. Background Technology

[0002] In fluid control devices, some valve components adjust the opening of the flow passage between the moving valve and the stationary valve by rotation. A smaller opening is achieved when a smaller opening is needed, and vice versa. This structure has some limitations in practical applications:

[0003] First, in scenarios requiring high-speed switching or frequent operation, such as automotive thermal management systems or industrial fluid control systems, moving valves need a larger rotation angle to complete opening and closing operations. This directly results in a slow valve opening and closing response speed, making it difficult to meet the demand for rapid fluid control.

[0004] Secondly, the moving valve components are subjected to uneven forces when rotating at large angles, and large angle rotation means a longer stroke. These factors will exacerbate structural wear and affect the sealing performance and service life of the valve device.

[0005] Therefore, existing valve devices struggle to balance rapid response and high reliability, limiting their application in more demanding scenarios. Summary of the Invention

[0006] To address the issues of improving switching response speed and reliability in existing technologies, the purpose of this invention is to provide a valve device that can significantly shorten the rotation path of the moving valve component, improve response speed, and achieve higher reliability.

[0007] To achieve the aforementioned objectives, one embodiment of this utility model provides a valve device, including a valve seat and a movable valve element and a fixed valve element disposed within the valve seat. The movable valve element and the fixed valve element abut against each other. The fixed valve element is provided with a flow channel. The movable valve element can be driven to rotate to open or close the inlet of the flow channel.

[0008] The fixed valve component includes multiple first flow channels, and the movable valve component is provided with multiple sealing parts. The movable valve component rotates around the rotation axis to simultaneously open or close the inlets of the multiple first flow channels through the multiple sealing parts.

[0009] The valve seat includes a fluid inlet and a first fluid outlet. Both the fluid inlet and the first fluid outlet are connected to the plurality of first flow channels. Fluid flowing in from the fluid inlet flows through the plurality of first flow channels and converges at the first fluid outlet before being discharged.

[0010] As a further improvement of this utility model, the fixed valve component flow channel also includes multiple second flow channels. During the rotation of the moving valve component, the multiple sealing parts can selectively open or close the inlets of the multiple first flow channels simultaneously, or open or close the inlets of the multiple second flow channels simultaneously.

[0011] The valve seat also includes a second fluid outlet, which is connected to the plurality of second flow channels. Fluid flowing in from the fluid inlet flows through the plurality of second flow channels and is discharged at the second fluid outlet.

[0012] As a further improvement of this utility model, the first flow channel is configured as two channels, and the inlets of the two first flow channels are respectively located on both sides of the rotation axis and are symmetrical about the center of the rotation axis.

[0013] The sealing part includes two first sealing parts, each of which seals the inlet of the corresponding first flow channel when the moving valve is rotated.

[0014] As a further improvement of this utility model, the second flow channel is configured as two channels, with the inlets of the two second flow channels located on both sides of the rotation axis and symmetrical about the center of the rotation axis;

[0015] The sealing part includes two second sealing parts, each of which closes the inlet of the corresponding second flow channel when the moving valve is rotated.

[0016] As a further improvement of this utility model, the fixed valve includes a partition wall that separates the flow channel of the fixed valve into a first flow channel and a second flow channel. The partition wall has a streamlined curved shape and guides the directional flow of the fluid.

[0017] As a further improvement of this utility model, the fixed valve includes a top wall and a bottom wall. The top wall is provided with an inlet for the first flow channel and an inlet for the second flow channel. The bottom wall is provided with a bottom confluence port. The partition wall is connected between the top wall and the bottom wall. The two first flow channels flow through the cavity formed by the partition wall and are connected to the bottom confluence port. One side of the outer surface of the partition wall forms one of the second flow channels, and the other side forms another second flow channel.

[0018] The partition wall is arranged around the rotation axis, and guides the two first flow channels to converge radially and the two second flow channels to converge circumferentially.

[0019] As a further improvement of this utility model, the inlets of the first flow channel and the inlets of the second flow channel are circumferentially distributed around the rotation axis.

[0020] As a further improvement of this utility model, the outlines of the inlets of the multiple first flow channels are all the same, and the outlines of the inlets of the multiple second flow channels are all the same.

[0021] The inlet of the first flow channel and the inlet of the second flow channel have the same shape. The sealing part closes the inlet of the first flow channel at one position when the moving valve is rotated, and closes the inlet of the second flow channel at another position when the valve is rotated.

[0022] As a further improvement of this utility model, at least one of the inlets of the plurality of first flow channels and the plurality of second flow channels is configured as a pressure-reducing outlet, or at least one cooperates with the moving valve to form a pressure-reducing outlet;

[0023] The fluid flowing in from the fluid inlet flows out after its pressure is reduced by the pressure-reducing outlet.

[0024] As a further improvement of this utility model, the valve device further includes a rotating shaft and a transmission component. The rotating axis is the axis of the rotating shaft. The moving valve component includes two fixed parts located on both sides of the rotating axis. The transmission component passes through the rotating shaft and is fixedly connected to it. The two ends of the transmission component are respectively connected to the corresponding fixed parts for driving the moving valve component to rotate around the rotating axis.

[0025] Compared with commonly used technologies, this invention has the following advantages: Unlike single-channel valves which require a large rotation angle to open and close, this valve device achieves the same flow area through the simultaneous opening and closing of multiple first channels, requiring only a smaller rotation angle, thus significantly improving the valve's opening and closing response speed. Simultaneously, the smaller rotation angle also means less stroke, more even force distribution, reduced wear, and extended valve life. Therefore, this valve device exhibits significant advantages in improving opening and closing speed, optimizing mechanical properties, and achieving reliable sealing, giving it stronger market competitiveness. Attached Figure Description

[0026] Figure 1 is a structural schematic diagram of the valve device according to the first embodiment of this utility model;

[0027] Figure 2 is a structural schematic diagram of the fixed valve and the moving valve of the first embodiment of this utility model;

[0028] Figure 3 is a structural schematic diagram of the fixed valve component in the first embodiment of this utility model from a bottom view.

[0029] Figure 4 is a top view of the fixed valve component according to the first embodiment of this utility model;

[0030] Figure 5 is a cross-sectional view of the valve device of the first embodiment of the present invention along the AA direction in Figure 4;

[0031] Figure 6 is a cross-sectional view of the valve device of the first embodiment of the present invention in the BB direction of Figure 4;

[0032] Figure 7 is a longitudinal sectional view of the valve device according to the second embodiment of the present invention;

[0033] Figure 8 is a structural schematic diagram of the fixed valve component according to the second embodiment of this utility model;

[0034] Figure 9 is a cross-sectional view of the valve device according to the third embodiment of this utility model;

[0035] Among them, 100 is the valve device; 10 is the fixed valve; 11 is the first flow channel; 12 is the second flow channel; 13 is the pressure reducing outlet; 14 is the partition wall; 15 is the top wall; 16 is the bottom wall; 160 is the bottom manifold; 20 is the moving valve; 21 is the fixed part; 30 is the rotating shaft; 40 is the transmission component; 50 is the valve seat; 51 is the fluid inlet; 52 is the first fluid outlet; 53 is the second fluid outlet; 60 is the drive assembly; and L1 is the rotating shaft. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0037] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0038] One embodiment of this utility model provides a valve device that can significantly shorten the rotation path of the moving valve, improve the response speed, realize the rapid flow and discharge of fluid, and has higher reliability.

[0039] The valve device 100 of this embodiment, as shown in FIG1, includes a drive assembly 60, a valve seat 50, a rotating shaft 30, a movable valve element 20 and a fixed valve element 10 that abut against each other. The drive assembly 60 drives the rotating shaft 30 to rotate. A receiving cavity is provided in the valve seat 50, and the rotating shaft 30, the movable valve element 20 and the fixed valve element 10 can be installed in the receiving cavity. The movable valve element 20 is driven by the rotating shaft 30 and can rotate relative to the fixed valve element 10 about the rotation axis L1. The fixed valve element 10 includes a flow channel. The movable valve element 20 and the fixed valve element 10 control the opening and closing of the inlet of the flow channel of the fixed valve element 10 by abutting against each other. During the rotation of the movable valve plate, the inlet of the flow channel of the fixed valve element 10 is opened or closed to adjust the opening degree.

[0040] To clearly express the positions and directions described in this embodiment, in this embodiment, the movable valve 20 is defined to rotate in a horizontal plane, and the fluid flows in a downward direction when passing through the inlet of the flow channel of the fixed valve 10. The horizontal plane is only a name definition and is not limited to the "horizontal" in a physical sense. Of course, in the preferred embodiment, the horizontal plane is parallel to the horizontal plane in physics, and the downward direction is the direction of gravity. The rotation axis 30 and the rotation axis L1 of the movable valve 20 extend in the vertical direction. The drive assembly 60 is located above the movable valve 20, and the fixed valve 10 is located below the movable valve 20.

[0041] As shown in Figure 2, the fixed valve 10 of this embodiment includes multiple first flow channels 11, and the movable valve 20 is provided with multiple sealing parts. The movable valve 20 rotates around the rotation axis L1 to simultaneously open or close the inlets of multiple first flow channels 11 through the multiple sealing parts. The valve seat 50 includes a fluid inlet 51 and a first fluid outlet 52. Both the fluid inlet 51 and the first fluid outlet 52 are connected to the multiple first flow channels 11. The fluid flowing in from the fluid inlet 51 flows through the multiple first flow channels 11 and is discharged at the first fluid outlet 52.

[0042] Two or more first flow channels 11 can be provided. In this embodiment, Figures 2 and 4 show that the first flow channel 11 has two inlets, corresponding to two first flow channels 11. Each first fluid inlet 51 can correspond to a first sealing part. The first sealing part closes or opens multiple inlets of the first flow channel 11 as the valve 20 rotates, thereby regulating the fluid distribution and flow rate. For example, the opening degree of a conventional flow channel requires a 30° rotation, while in this embodiment, only a 15° rotation is needed to open the inlets of two first flow channels 11 simultaneously to achieve the same opening degree. Alternatively, three, four, or even more first flow channels 11 can be provided. Taking three as an example, only a 10° rotation is needed.

[0043] Therefore, the moving valve 20 rotates around the rotation axis L1, simultaneously opening or closing the inlets of multiple first flow channels 11. The synchronous opening and closing of the inlets of multiple first flow channels 11 can control a larger flow rate while reducing the rotation angle of the moving valve 20. This not only improves the valve's opening and closing response speed but also makes the valve device 100 perform excellently in applications requiring precise flow control. Through the coordinated work of the inlets and closing parts of multiple first flow channels 11, the efficiency of fluid regulation is improved, adapting to scenarios requiring large flow rates and rapid regulation.

[0044] In addition, as shown in Figure 1, the valve device 100 also includes a transmission component 40. The moving valve component 20 includes two fixed parts 21. The rotation axis L1 is the axis of the rotation shaft 30. The two fixed parts 21 are located on both sides of the rotation axis L1. The transmission component 40 passes through the rotation shaft 30 and is fixedly connected to it. The two ends of the transmission component 40 are respectively fixed to the corresponding fixed parts 21, and are used to drive the moving valve component 20 to rotate around the rotation axis L1.

[0045] In Figure 1, fixed portions 21 are symmetrically arranged on both sides of the rotation axis 30 of the moving valve 20. Each fixed portion 21 includes a first wall and a second wall, with a fixing groove formed between the first and second walls. The transmission member 40 is rod-shaped and inserted into the fixing groove. The cooperation between the transmission member 40 and the fixed portion 21 ensures that the moving valve 20 can rotate precisely around the rotation axis 30, accurately adjusting the opening and closing state of the fluid channel and ensuring the flow control accuracy of the valve device 100.

[0046] Furthermore, the flow channel of the fixed valve 10 in this embodiment also includes multiple second flow channels 12, as shown in Figures 2, 3, and 4. During the rotation of the movable valve 20, multiple sealing parts can selectively open or close the inlets of multiple first flow channels 11 simultaneously, or open or close the inlets of multiple second flow channels 12 simultaneously.

[0047] In addition, the valve seat 50 also includes a second fluid outlet 53, which is connected to a plurality of second flow channels 12. Fluid flowing in from the fluid inlet 51 flows through the plurality of second flow channels 12 and is discharged at the second fluid outlet 53.

[0048] By setting multiple second flow channels 12 and allowing the moving valve 20 to selectively open or close multiple first flow channels 11 and second flow channels 12 simultaneously, the valve device 100 can achieve more functions. Different flow channels can be selectively opened and closed, allowing fluid to flow out from different channels. The flow control and regulation capability is significantly enhanced. Especially in multi-channel systems with large changes in flow demand, by integrating the functions of multiple valves through one valve device 100, the fluid regulation method is more flexible and efficient.

[0049] As shown in Figures 2 and 4, in this embodiment, there are two first flow channels 11, with the inlets of the two first flow channels 11 located on opposite sides of the rotation axis L1 and symmetrical about the rotation axis L1. The sealing part includes two first sealing parts, each of which seals the inlet of the corresponding first flow channel 11 when the moving valve 20 rotates. The inlets of the two first flow channels 11 are arranged symmetrically at 180° with respect to the rotation axis L1, and the two corresponding sealing parts are also arranged symmetrically at 180°. This symmetrical arrangement makes the rotation of the moving valve 20 more stable and avoids eccentric swinging caused by asymmetrical design.

[0050] In addition, as shown in Figures 2 and 4, the second flow channel 12 is configured as two channels, and the inlets of the two second flow channels 12 are located on both sides of the rotation axis L1 and are symmetrical about the rotation axis L1. The sealing part includes two second sealing parts, and each second sealing part opens and closes the inlet of the corresponding second flow channel 12 when the moving valve 20 rotates.

[0051] The inlets of the second flow channel 12 are also located on both sides of the rotation axis L1 and are similarly symmetrical, similar to the arrangement of the inlets of the first flow channel 11. Thus, the inlets of the first flow channel 11 and the second flow channel 12 are staggered. The two second sealing sections are also arranged symmetrically at 180°, reducing structural asymmetry, reducing the eccentric force and uneven stress during the rotation of the moving valve 20, thereby reducing the risk of wear and seal failure and achieving precise flow control.

[0052] As shown in Figures 2 and 3, the fixed valve 10 includes a partition wall 14, which divides the flow channel of the fixed valve 10 into a first flow channel 11 and a second flow channel 12. The partition wall 14 has a streamlined curved shape and guides the directional flow of the fluid.

[0053] In this embodiment, the streamlined curved shape refers to the shape design of the partition wall 14 being curved rather than straight, similar to the "streamline" in aerodynamics. By optimizing the fluid flow path, it reduces flow resistance, smoothly guides fluid flow, enhances the stability of fluid flow, makes fluid flow smoother, reduces flow resistance and turbulence caused by right angles or sharp turns, reduces fluid friction and energy loss, and improves the efficiency of fluid flow.

[0054] Therefore, on the one hand, the partition wall 14 separates different flow channels (such as the first flow channel 11 and the second flow channel 12), ensuring that the fluid has a clear channel structure between different flow channels. On the other hand, the shape of the partition wall 14 affects the flow characteristics of the fluid, especially in valves that require fast flow and efficient fluid control, where a streamlined curved shape can significantly improve the performance of the valve device 100.

[0055] Further, continuing as shown in Figures 2 and 3, the fixed valve 10 includes a top wall 15 and a bottom wall 16. The top wall 15 is provided with the inlet of the first flow channel 11 and the inlet of the second flow channel 12. The bottom wall 16 is provided with a bottom confluence port 160. A partition wall 14 is connected between the top wall 15 and the bottom wall 16. The two first flow channels 11 flow through the cavity formed by the partition wall 14 and connect to the bottom confluence port 160. One side of the outer surface of the partition wall 14 forms one of the second flow channels 12, and the other side forms another second flow channel 12. The partition wall 14 is arranged around the rotation axis L1. The partition wall 14 guides the two first flow channels 11 to converge radially and guides the two second flow channels 12 to converge circumferentially.

[0056] In this embodiment, the first flow channel 11 is located within the cavity enclosed by the partition wall 14, and the second flow channel 12 is located outside the cavity enclosed by the partition wall 14. The second flow channel 12 is formed by the outer surface of the partition wall 14 and the inner surface of the receiving cavity formed by the valve seat 50. In this way, the arrangement of the partition wall 14 guides the first flow channel 11 to converge radially and the second flow channel 12 to converge circumferentially. The first flow channel 11 and the second flow channel 12 are arranged in an alternating manner. The radial and circumferential flow modes not only allow the fluid to converge smoothly, but also avoid contact between fluids from different flow channels. The reasonable arrangement of the four flow channels is achieved by a fixed valve 10, which optimizes the flow path of the fluid.

[0057] As shown in Figure 4, the inlets of multiple first flow channels 11 and multiple second flow channels 12 are circumferentially distributed around the rotation axis L1. The circumferentially arranged flow channel inlet structure is uniformly and rationally arranged, which improves the fluid distribution efficiency.

[0058] In Figure 4, the outlines of the inlets of multiple first flow channels 11 are identical, and the outlines of the inlets of multiple second flow channels 12 are also identical. The inlets of the first flow channels 11 and the second flow channels 12 have the same shape. The sealing part closes the inlet of the first flow channel 11 at one position of rotation of the moving valve 20, and closes the inlet of the second flow channel 12 at another position of rotation. That is to say, a uniform shape can be used to close the inlets of different flow channels, and the structure of the moving valve 20 can be designed to be simpler. In this embodiment, the cross-section of the inlet of the flow channel is fan-shaped, and the adjustment of the opening degree is linearly related to the rotation amount of the moving valve 20, which helps to accurately control the size of the opening degree and smoothly control the flow rate.

[0059] In this embodiment, there is one fluid inlet 51, while there can be one or more fluid outlets. The number of fluid outlets corresponds to the number of different types of flow channels in the valve 10. For example, the first fluid outlet 52 corresponds to multiple first flow channels 11, the second fluid outlet 53 corresponds to multiple second flow channels 12, and there can also be a third fluid outlet corresponding to a third flow channel. Furthermore, more flow channels and fluid outlets can be provided. Each flow channel inlet has a corresponding closing part for opening and closing.

[0060] In the first embodiment, as shown in Figures 1-6, the valve device 100 includes only a first flow channel 11 and a second flow channel 12. Fluid can be selected to flow from different flow channels to different outlets. Figures 5 and 6 show a three-layer structure: the upper layer is the fluid inlet 51, the middle layer is the second fluid outlet 53, and the lower layer is the first fluid outlet 52. In the cross-sectional view of Figure 5, when the movable valve 20 is rotated to open the inlet of the first flow channel 11, fluid flows in from the upper fluid inlet 51, converges radially within the fixed valve 10, and exits from the lower first fluid outlet 52. In the cross-sectional view of Figure 6, when the movable valve 20 is rotated to open the inlet of the second flow channel 12, fluid flows in from the upper fluid inlet 51, converges circumferentially within the fixed valve 10, and exits from the middle second fluid outlet 53.

[0061] In the second embodiment, as shown in Figures 7 and 8, the valve device 100 includes only a first flow channel 11. Fluid can flow from the first flow channel 11 and then exit from the first fluid outlet 52. The figures show a two-layer structure, with the upper layer being the fluid inlet 51 and the lower layer being the first fluid outlet 52. Fluid flows in from the upper fluid inlet 51, and after flowing in from the inlets of different first flow channels 11 of the fixed valve member 10, the fluid flows in and then exits from the lower first fluid outlet 52.

[0062] In addition, the present invention also includes a third embodiment, wherein at least one of the inlets of the plurality of first flow channels 11 and the plurality of second flow channels 12 is configured as a pressure reducing outlet 13, or at least one cooperates with the moving valve 20 to form a pressure reducing outlet 13; the fluid flowing in from the fluid inlet 51 flows out after the pressure is reduced by the pressure reducing outlet 13.

[0063] As shown in Figure 9, the pressure reducing outlet 13 is located on the fixed valve member 10, and the movable valve member 20 can be driven to rotate to partially close the pressure reducing outlet 13, thereby forming the throttle port of the expansion valve.

[0064] In some other embodiments, a throttling orifice (pressure-reducing outlet 13) is formed by the movable valve 20 cooperating with the inlet of the flow channel. For example, the movable valve 20 is provided with a narrow opening that cooperates with the fan-shaped inlet of the flow channel to form the pressure-reducing outlet 13. The valve device 100 in Embodiment 3 is an expansion valve, which can precisely adjust the flow rate to control the amount of refrigerant supplied. The formed pressure-reducing outlet 13 is narrow and elongated. When the refrigerant passes through the pressure-reducing outlet 13, the high-pressure refrigerant is reduced to low-pressure refrigerant through the narrow pressure-reducing outlet 13, and part of the refrigerant expands from a liquid state to a gaseous state. The movable valve 20 is rotated to different positions to adjust the different lengths of the pressure-reducing outlet 13, thereby precisely adjusting the amount of refrigerant supplied.

[0065] Compared with the prior art, this embodiment has the following beneficial effects:

[0066] Compared to valves that require a large rotation angle to open and close a single flow channel, this valve device 100 achieves the same flow area by simultaneously opening and closing multiple first flow channels 11, requiring only a smaller rotation angle and significantly improving the valve's opening and closing response speed. Simultaneously, the smaller rotation angle also means less stroke, more even force distribution, reduced wear, and extended service life of the valve device 100. Therefore, this valve device 100 exhibits significant advantages in improving opening and closing speed, optimizing mechanical properties, and achieving reliable sealing, giving it stronger market competitiveness.

[0067] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0068] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A valve device, comprising a valve seat and a movable valve element and a fixed valve element disposed within the valve seat, the movable valve element and the fixed valve element abutting against each other, the fixed valve element being provided with a fixed valve element flow channel, the movable valve element being drivable to rotate to open or close the inlet of the fixed valve element flow channel, characterized in that: The fixed valve component includes multiple first flow channels, and the movable valve component is provided with multiple sealing parts. The movable valve component rotates around the rotation axis to simultaneously open or close the inlets of the multiple first flow channels through the multiple sealing parts. The valve seat includes a fluid inlet and a first fluid outlet. Both the fluid inlet and the first fluid outlet are connected to the plurality of first flow channels. Fluid flowing in from the fluid inlet flows through the plurality of first flow channels and converges at the first fluid outlet before being discharged.

2. The valve device according to claim 1, characterized in that, The fixed valve component flow channel also includes multiple second flow channels. During the rotation of the moving valve component, the multiple sealing parts can selectively open or close the inlets of the multiple first flow channels simultaneously, or open or close the inlets of the multiple second flow channels simultaneously. The valve seat also includes a second fluid outlet, which is connected to the plurality of second flow channels. Fluid flowing in from the fluid inlet flows through the plurality of second flow channels and is discharged at the second fluid outlet.

3. The valve device according to claim 2, characterized in that, The first flow channel is configured as two channels, with the inlets of the two channels located on both sides of the rotation axis and symmetrical about the center of the rotation axis. The sealing part includes two first sealing parts, each of which seals the inlet of the corresponding first flow channel when the moving valve is rotated.

4. The valve device according to claim 3, characterized in that, The second flow channel is configured as two channels, with the inlets of the two channels located on both sides of the rotation axis and symmetrical about the center of the rotation axis; The sealing part includes two second sealing parts, each of which closes the inlet of the corresponding second flow channel when the moving valve is rotated.

5. The valve device according to claim 4, characterized in that, The fixed valve includes a partition wall that separates the flow channel of the fixed valve into a first flow channel and a second flow channel. The partition wall has a streamlined curved shape and guides the directional flow of the fluid.

6. The valve device according to claim 5, characterized in that, The valve includes a top wall and a bottom wall. The top wall has an inlet for the first flow channel and an inlet for the second flow channel. The bottom wall has a bottom confluence port. The partition wall is connected between the top wall and the bottom wall. The two first flow channels flow through the chamber enclosed by the partition wall and are connected to the bottom confluence port. One side of the outer surface of the partition wall forms one of the second flow channels, and the other side forms another second flow channel. The partition wall is arranged around the rotation axis, and guides the two first flow channels to converge radially and the two second flow channels to converge circumferentially.

7. The valve device according to claim 2, characterized in that, Multiple inlets of the first flow channel and multiple inlets of the second flow channel are circumferentially distributed around the axis of rotation.

8. The valve device according to claim 7, characterized in that, The outlines of the inlets of the multiple first flow channels are all the same, and the outlines of the inlets of the multiple second flow channels are all the same; The inlet of the first flow channel and the inlet of the second flow channel have the same shape. The sealing part closes the inlet of the first flow channel at one position when the moving valve is rotated, and closes the inlet of the second flow channel at another position when the valve is rotated.

9. The valve device according to claim 2, characterized in that, At least one of the inlets of the plurality of first flow channels and the plurality of second flow channels is configured as a pressure-reducing outlet, or at least one cooperates with the moving valve to form a pressure-reducing outlet; The fluid flowing in from the fluid inlet flows out after its pressure is reduced by the pressure-reducing outlet.

10. The valve device according to claim 1, characterized in that, The valve device further includes a rotating shaft and a transmission component. The rotating axis is the axis of the rotating shaft. The moving valve component includes two fixed parts located on both sides of the rotating axis. The transmission component passes through the rotating shaft and is fixedly connected to it. The two ends of the transmission component are respectively connected to the corresponding fixed parts, and are used to drive the moving valve component to rotate around the rotating axis.

Images