A plane cone type double seal high temperature and high pressure regulating valve
By designing energy discharging devices and sealing devices in high-temperature and high-pressure regulating valves, the problem of easy damage to the regulating valves in high-temperature and high-pressure environments is solved, delaying the aging and damage time and effectively protecting the inner wall of the valve body.
Patent Information
- Application Number
- CN202421571438.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-04
AI Technical Summary
When used under high temperature and high pressure fluid, the internal components and inner walls are easily damaged due to fluid impact.
A flat cone type double seal high-temperature and high-pressure regulating valve is designed, using an energy-release device to buffer instantaneous pressure, and a separate seal between the entrances and exits at both ends is achieved through the sealing device to reduce fluid impact.
Through the design of the energy-removing device, the impact of fluid on the valve body and internal components is reduced, and the aging and damage time of the regulating valve is delayed; the sealing device effectively prevents leakage and reduces the generation of fluid corrugations, protecting the inner wall of the valve body.
Smart Images
Figure CN222702570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of regulating valves, in particular to a plane cone type double-sealed high-temperature and high-pressure regulating valve. Background Art
[0002] The regulating valve is a device used to adjust fluid parameters. It can accurately control parameters such as flow, pressure, and temperature. By changing the position of the valve core, the fluid can be adjusted. It is widely used in industrial automation systems. It has the characteristics of rapid response and wide adjustment range. It plays an important role in maintaining the stable operation of the system.
[0003] In the prior art, when a regulating valve is used to adjust a high-temperature and high-pressure fluid, since the high-temperature and high-pressure fluid has a large internal energy, and the pressure that pushes the fluid gives the fluid a certain kinetic energy, the moment the regulating valve is opened, the fluid will have a strong impact on the area around the valve port of the regulating valve. For some regulating valves that limit the flow rate, working for a long time under this impact can easily cause damage to the components and inner walls inside the regulating valve, making the regulating valve easy to be damaged. Utility Model Content
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a plane cone type double seal high temperature and high pressure regulating valve, comprising: a valve body; a connecting block, the outer wall of the connecting block is fixedly connected to the outer wall of the valve body; a support column, the bottom of the support column is fixedly connected to the top of the valve body; a press, the bottom of the press is fixedly connected to the top of the support column; a valve stem, the top of the valve stem is fixedly connected to the output end of the press; an energy unloading device, the energy unloading device is used to buffer the instantaneous pressure in the valve body when it is opened, and the top of the energy unloading device is fixedly connected to the bottom of the valve stem; A sealing device, wherein the outer wall of the sealing device is fixedly connected to the outer wall of the connecting block; the energy unloading device comprises a connecting column, the bottom of the connecting column is fixedly connected to a conical head, the outer wall of the conical head is fixedly connected to a diverter plate, the outer wall of the diverter plate is slidably connected to the inner wall of the valve body through a conical groove, and the conical groove is provided in the wall of the valve body, the top of the inner wall of the valve body is fixedly connected to an annular cover, and a leakage hole is provided in the wall of the annular cover. By arranging the energy unloading device, the flow direction of the bursting fluid is guided and made to collide with the valve port position, thereby reducing the kinetic energy and part of the internal energy stored in the fluid.
[0005] Preferably, the outer wall of the valve stem is slidably connected to the inner wall of the annular cover via a baffle ring, the bottom of the valve stem is fixedly connected to the top of the connecting column, the outer wall of the valve stem is slidably connected to the inner wall of the valve body, and the energy unloading device reduces the impact of the fluid on the valve body and components inside the valve body, thereby delaying the aging and damage time of the regulating valve.
[0006] Preferably, the sealing device includes a connecting plate, the inner wall of the connecting plate is slidably connected to a sliding baffle, a through hole is opened in the wall of the sliding baffle, a positioning block is fixedly connected to the bottom of the sliding baffle, the inner wall of the sliding baffle is threadedly connected to a rotating screw, and a connecting pipe is arranged on the outside of the rotating screw, so that the inlets and outlets at both ends of the regulating valve can be individually sealed. When leakage occurs on one side, adjustment can be made to prevent the leakage from continuing to occur.
[0007] Preferably, the outer wall of the connecting plate is fixedly connected to the outer wall of the valve body, the end of the connecting plate away from the valve body is fixedly connected to the outer wall of the connecting pipe, and the inner wall of the connecting plate is rotatably connected to the outer wall of the rotating screw to position the sliding baffle when opening, reduce the fluctuation of the sliding baffle, and reduce the vibration generated by the fluid entering the valve body, thereby protecting the inner wall of the valve body.
[0008] The beneficial effects of the utility model are as follows:
[0009] 1. The utility model sets an energy dissipation device to guide the flow direction of the bursting fluid and make it collide with the valve port position, thereby reducing the kinetic energy and part of the internal energy stored in the fluid, reducing the impact of the fluid on the valve body and the components inside the valve body, and delaying the aging and damage time of the regulating valve.
[0010] 2. The utility model provides a sealing device so that the inlets and outlets at both ends of the regulating valve can be sealed separately. When leakage occurs on one side, it can be adjusted to prevent the leakage from continuing to occur. At the same time, the sliding baffle is positioned when opened to reduce the fluctuation of the sliding baffle, so that the fluid entering the valve body generates less vibration, thereby protecting the inner wall of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is the front view of the utility model;
[0012] Figure 2 It is a cross-sectional view of the utility model;
[0013] Figure 3 It is a schematic diagram of the local structure inside the valve body of the utility model;
[0014] Figure 4 It is a structural schematic diagram of A of the utility model.
[0015] In the figure: 1. valve body; 2. connecting block; 3. supporting column; 4. press; 5. valve stem; 6. energy unloading device; 7. sealing device; 61. connecting column; 62. conical head; 63. diverter plate; 64. conical groove; 65. annular cover; 66. leakage hole; 71. connecting plate; 72. sliding baffle; 73. through hole; 74. positioning block; 75. rotating screw; 76. connecting pipe. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.
[0017] Example: See Figure 1 - Figure 4 The utility model provides a technical solution: a plane cone type double seal high temperature and high pressure regulating valve, comprising: a valve body 1; a connecting block 2, the outer wall of the connecting block 2 is fixedly connected to the outer wall of the valve body 1; a support column 3, the bottom of the support column 3 is fixedly connected to the top of the valve body 1; a press 4, the bottom of the press 4 is fixedly connected to the top of the support column 3; a valve stem 5, the top of the valve stem 5 is fixedly connected to the output end of the press 4; an energy unloading device 6, the energy unloading device 6 is used to buffer the instantaneous pressure in the valve body 1 when it is opened, and the top of the energy unloading device 6 is fixedly connected to the bottom of the valve stem 5; a sealing device 7, the outer wall of the sealing device 7 is fixedly connected to the outer wall of the connecting block 2; the energy unloading device 6 includes a connecting column 61, and the bottom of the connecting column 61 is fixedly connected with a conical head 62 The outer wall of the conical head 62 is fixedly connected with a diverter plate 63, and the outer wall of the diverter plate 63 is slidably connected to the inner wall of the valve body 1 through a conical groove 64, and the conical groove 64 is opened in the wall of the valve body 1, and the top of the inner wall of the valve body 1 is fixedly connected with an annular cover 65, and a leakage hole 66 is opened in the wall of the annular cover 65. Through the inclined surface setting of the conical head 62 and the blocking of the diverter plate 63, the bursting fluid moves along the inclined surface direction of the conical head 62 and finally contacts the annular cover 65. During the bursting process, the fluid is evenly dispersed, so that the fluid contacts the gas in the upper part of the valve body 1, and the internal energy of the fluid itself is reduced through friction and heat exchange between the fluid and the gas, and gravity reduces a part of the kinetic energy of the bursting fluid. At this time, the first layer of energy unloading is completed.
[0018] The outer wall of the valve stem 5 is slidably connected to the inner wall of the annular cover 65 through a baffle ring, the bottom of the valve stem 5 is fixedly connected to the top of the connecting column 61, and the outer wall of the valve stem 5 is slidably connected to the inner wall of the valve body 1. The fluid still has a large kinetic energy will move along the direction of the annular cover 65, and gradually convert the kinetic energy into descending gravitational potential energy during the movement. When the fluid finally moves to the top of the inner plane of the valve body 1, it will move to the conical groove 64 due to the push of the gravitational potential energy. At this time, the fluid will collide with the fluid entering the upper part of the valve body 1, and offset part of their respective potential energy and kinetic energy with the entering fluid, and finally reach the second layer of energy unloading.
[0019] The sealing device 7 includes a connecting plate 71, the inner wall of which is slidably connected to a sliding baffle 72, a through hole 73 is opened in the wall of the sliding baffle 72, a positioning block 74 is fixedly connected to the bottom of the sliding baffle 72, a rotating screw 75 is threadedly connected to the inner wall of the sliding baffle 72, and a connecting pipe 76 is arranged on the outside of the rotating screw 75. The sealing device 7 near the inlet of the valve body 1 is taken as an example for introduction. Before the fluid enters the valve body 1 through the connecting pipe 76, it needs to pass through the sliding baffle 72 and the connecting block 2 at the inlet. In the sealed state of the sealing device 7 at this position, the through hole 73 is arranged in the upper area of the fluid path, so that the fluid is blocked by the sliding baffle 72, thereby completing the sealing of the area inside the valve body 1.
[0020] The outer wall of the connecting plate 71 is fixedly connected to the outer wall of the valve body 1, and the end of the connecting plate 71 away from the valve body 1 is fixedly connected to the outer wall of the connecting pipe 76, and the inner wall of the connecting plate 71 is rotatably connected to the outer wall of the rotating screw 75. When the user rotates the rotating screw 75, and with the cooperation of the thread, the sliding baffle 72 moves downward until the positioning block 74 at the bottom of the sliding baffle 72 is completely immersed in the reserved groove of the connecting plate 71. At this time, the through hole 73 reaches the fluid flow path, so that the fluid can smoothly enter the valve body 1, and the high-temperature and high-pressure fluid will produce ripples when blocked. The ripples have a certain impact under the support of the fluid kinetic energy. Through the cooperation of the positioning block 74 and the reserved groove of the connecting plate 71, the outer circle of the through hole 73 and the inner hole of the connecting block 2 can be accurately aligned, thereby reducing the generation of fluid ripples.
[0021] Working principle:
[0022] When in use, the upper and lower parts of the valve body 1 are respectively set as the energy dissipation area and the energy storage area of the entrance. When the high-temperature and high-pressure fluid from the outside enters the area below the valve body 1 through the connecting block 2, the press machine 4 on the supporting column 3 is controlled to lift the valve stem 5, so that the valve stem 5 drives the conical head 62 to leave the conical groove 64 position, so that the hole in the plane blocked in the middle of the valve body 1 is exposed, so that the fluid can pass through the valve body 1 into the next pipeline. Under high-pressure conditions, the area below the valve body 1 is always full of fluid. When the connecting column 61 is lifted upward under the influence of the valve stem 5, the fluid accumulated in the area below the valve body 1 will cause violent molecular movement due to its own high-temperature and high-pressure characteristics, and will burst violently at the opening in a very short time. Through the inclined surface setting of the conical head 62 and the blocking of the diverter plate 63, the bursting fluid moves along the inclined surface direction of the conical head 62 and finally contacts the annular cover 65. During the bursting process, the fluid is evenly distributed, so that the fluid and the gas in the upper part of the valve body 1 are in contact. The friction and heat exchange between the fluid and the gas reduce the internal energy of the fluid itself, and gravity reduces part of the kinetic energy of the bursting fluid. At this time, the first layer of energy unloading is completed. At this time, the fluid still has a large kinetic energy will move along the direction of the annular cover 65, and gradually convert the kinetic energy into descending gravitational potential energy during the movement. When the fluid finally moves to the top of the inner plane of the valve body 1, it will move to the conical groove 64 due to the push of the gravitational potential energy. At this time, the fluid will collide with the fluid entering the upper part of the valve body 1, and offset part of their respective potential energy and kinetic energy with the entering fluid, and finally reach the second layer of energy unloading. The energy unloading device 6 uses two layers of energy unloading to buffer the gravitational kinetic energy generated by the high pressure on the fluid. At the same time, the converted internal energy is still on the inner wall of the valve body 1, and does not cause a large amount of internal energy loss. After that, the fluid leaves the valve body 1 through the leakage hole 66, so that the high-temperature and high-pressure fluid can buffer part of the kinetic energy while ensuring its own physical properties, thereby reducing the impact on the inner wall of the valve body 1 and internal components.
[0023] A sealing device 7 is provided to limit the inlet and outlet positions of the connecting blocks 2 at both ends of the valve body 1, so that the fluid in and out of the valve body 1 can be blocked. The sealing device 7 near the inlet position of the valve body 1 is taken as an example for description. Before the fluid enters the valve body 1 through the connecting pipe 76, it needs to pass through the sliding baffle 72 and the inlet connecting block 2. In the sealed state of the sealing device 7 at this position, the through hole 73 is provided in the upper area of the fluid path, so that the fluid is blocked by the sliding baffle 72, thereby completing the sealing of the area inside the valve body 1. Since the rotating screw 75 does not move up and down when the connecting plate 71 rotates, when the user rotates the rotating screw 75, and with the cooperation of the thread, the sliding baffle 72 moves downward until the bottom of the sliding baffle 72 is The positioning block 74 of the upper part is completely immersed in the reserved groove of the connecting plate 71. At this time, the through hole 73 reaches the fluid flow path, so that the fluid can smoothly enter the valve body 1. When the high-temperature and high-pressure fluid is blocked, ripples will be generated. The ripples have a certain impact under the support of the fluid kinetic energy. Through the cooperation of the positioning block 74 and the reserved groove of the connecting plate 71, the outer circle of the through hole 73 and the hole in the connecting block 2 can be accurately aligned, thereby reducing the generation of fluid ripples. At the same time, the positioning block 74 restricts the sliding baffle 72 in the connecting plate 71, and cooperates with the inner wall of the connecting plate 71 to limit the sliding baffle 72 on multiple sides, thereby reducing the impact of the sliding baffle 72 itself on the fluid impact, so that the sliding baffle 72 is difficult to loosen and leak due to the fluid impact.
[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.
Claims
1. A plane cone type double seal high temperature and high pressure regulating valve, characterized in that: include: Valve body (1); A connecting block (2), the outer wall of the connecting block (2) being fixedly connected to the outer wall of the valve body (1); A support column (3), the bottom of the support column (3) being fixedly connected to the top of the valve body (1); A press (4), the bottom of the press (4) being fixedly connected to the top of the support column (3); A valve stem (5), the top of the valve stem (5) being fixedly connected to an output end of the press (4); An energy unloading device (6), the energy unloading device (6) being used to buffer the instantaneous pressure in the valve body (1) when it is opened, the top of the energy unloading device (6) being fixedly connected to the bottom of the valve stem (5); A sealing device (7), wherein an outer wall of the sealing device (7) is fixedly connected to an outer wall of the connecting block (2); The energy unloading device (6) comprises a connecting column (61), the bottom of the connecting column (61) is fixedly connected to a conical head (62), the outer wall of the conical head (62) is fixedly connected to a diverter plate (63), the outer wall of the diverter plate (63) is slidably connected to the inner wall of the valve body (1) via a conical groove (64), and the conical groove (64) is provided in the wall of the valve body (1), the top of the inner wall of the valve body (1) is fixedly connected to an annular cover (65), and a leakage hole (66) is provided in the wall of the annular cover (65).
2. A plane cone type double seal high temperature and high pressure regulating valve according to claim 1, characterized in that: The outer wall of the valve stem (5) is slidably connected to the inner wall of the annular cover (65) via a baffle ring, the bottom of the valve stem (5) is fixedly connected to the top of the connecting column (61), and the outer wall of the valve stem (5) is slidably connected to the inner wall of the valve body (1).
3. A plane cone type double seal high temperature and high pressure regulating valve according to claim 1, characterized in that: The sealing device (7) comprises a connecting plate (71), the inner wall of the connecting plate (71) is slidably connected to a sliding baffle (72), a through hole (73) is provided in the wall of the sliding baffle (72), a positioning block (74) is fixedly connected to the bottom of the sliding baffle (72), a rotating screw (75) is threadedly connected to the inner wall of the sliding baffle (72), and a connecting pipe (76) is provided on the outside of the rotating screw (75).
4. A plane cone type double seal high temperature and high pressure regulating valve according to claim 3, characterized in that: The outer wall of the connecting plate (71) is fixedly connected to the outer wall of the valve body (1), one end of the connecting plate (71) away from the valve body (1) is fixedly connected to the outer wall of the connecting pipe (76), and the inner wall of the connecting plate (71) is rotatably connected to the outer wall of the rotating screw (75).