A scour-resistant ceramic ball valve with universal outflow

Abstract

The present invention relates to the technical field of ceramic valves, and specifically to a scour-resistant ceramic ball valve with universal outflow, comprising an outer tee, an inner tee fixedly installed inside the outer tee, both ends of the outer tee fixedly connected with elbows, inner liner pipes fixedly installed inside the two elbows, the two elbows commonly connected with the same ball valve assembly, and both sides of the ball valve assembly are respectively fixedly connected with an actuator for adjusting the rotation of a ceramic sphere and a docking assembly for docking with other pipes. Each water inlet hole in the device is symmetrically distributed along the center of the ceramic sphere, so the collision center of all water inlet holes is the center of the ceramic sphere. After the collision of fluids from all directions, the impact force is basically offset, thereby achieving the effect of overall vibration reduction. At the same time, because the ceramic sphere is rotatably installed in the valve seat, the ceramic sphere will not shake due to connection problems, avoiding cracking or damage of the ceramic sphere due to vibration, and greatly extending the service life of the ceramic sphere.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic valves, and in particular to a scour-resistant ceramic ball valve with universal outflow. Background Art

[0002] In the prior art, most of the conventional wear-resistant angle valves are straight-stroke, with a valve core installed on the valve stem head. When the valve is slightly opened, it is almost fully extended. The valve core is suspended for a long time and lacks rigid support. When the fluid passes through at high speed, the valve core vibrates greatly and makes high noise. The vibration makes the valve core and the valve seat prone to high-frequency collision and even breakage. To solve this problem, the valve core and the valve seat need to be made of relatively expensive and non-recyclable solid hard alloy, which is costly. However, this angle valve has poor sealing effect or even no sealing ability. At the same time, in order to reduce the vibration inside the valve, some angle valves use a labyrinth valve core, which divides the fluid into multiple strands and then offsets the energy to reduce scouring. However, this type of labyrinth valve core is generally a sleeve type, and there is also slight vibration between the inner and outer sleeves after being scoured by water for a long time. In addition, the gap between the outer and inner sleeves is prone to scaling and jamming, resulting in frequent maintenance, especially for valve bodies under certain extreme working conditions. For example, in gas-solid two-phase and liquid-solid two-phase media with high solid content, if it is a regulating valve condition for regulating flow, even if a conventional ceramic ball valve with excellent wear resistance is used to replace a metal wear-resistant ball valve, the life span is increased many times, but compared with metal, although ceramics have improved wear resistance, their relatively fragile material will also reduce their tolerance to vibration. Therefore, the prior art urgently needs a scouring-resistant ceramic ball valve to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a scour-resistant ceramic ball valve with universal outflow to solve the problems in the prior art.

[0004] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0005] A scour-resistant ceramic ball valve with universal outflow comprises an outer tee, an inner tee is fixedly installed in the outer tee, both ends of the outer tee are fixedly connected with elbows, inner lining pipes are fixedly installed in the two elbows, the two elbows are commonly connected to the same ball valve assembly, the ball valve assembly comprises a multi-way tube fixedly connected to the two elbows, a valve seat is fixedly connected in the multi-way tube, a ceramic sphere is rotatably installed in the valve seat, an actuator for adjusting the rotation of the ceramic ball valve and a docking assembly for docking with other pipelines are respectively fixedly connected on both sides of the ball valve assembly, the ceramic sphere is composed of two semicircular ceramic bodies fixedly connected, a plurality of water inlet holes are opened on the two semicircular ceramic bodies, and the water inlet holes on the two semicircular ceramic bodies are symmetrically distributed with the center of the ceramic sphere.

[0006] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the aperture of the water inlet hole is gradually reduced from the outer surface to the inner core of the ceramic sphere.

[0007] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the multiple water inlet holes on the semicircular ceramic body form a filter hole group, and the semicircular ceramic body is provided with multiple filter hole groups equidistantly arranged along the circumferential direction.

[0008] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the actuator is fixedly connected to the multi-way tube, and the output end of the actuator extends into the multi-way tube and is fixedly connected to the ceramic sphere, and the output end of the actuator drives the ceramic sphere to rotate.

[0009] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the docking assembly includes an extension pipe fixedly connected to the multi-way pipe, a water outlet pipe is fixedly installed in the extension pipe, and one end of the water outlet pipe extends into the ceramic ball.

[0010] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the inner thread of the water outlet pipe is connected to a noise reduction pipe, and a plurality of water outlet holes are opened at the bottom of the noise reduction pipe.

[0011] Based on a preferred solution provided by a universal outflow erosion-resistant ceramic ball valve, the bottom of the noise reduction pipe is fixedly connected to an arc plate, and the bottom of the arc plate is fitted with the inner wall of the ceramic sphere, and the bottom of the multi-way pipe is fixedly connected to an inspection cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects: each water inlet hole in the device is symmetrically distributed along the center of the ceramic sphere, so the collision center of all the water inlet holes is the center of the ceramic sphere. After the fluids from all directions collide, the impact force is basically offset, and the remaining medium that is not aimed at the water inlet hole impacts the outer wall of the semicircular ceramic body to alleviate the impact force. The outsides of the two semicircular ceramic bodies simultaneously receive the impact force of the medium from two relative directions, part of the impact offsets each other, and the remaining impact dissipates in the entire ceramic sphere cavity, thereby achieving the effect of overall vibration reduction. At the same time, because the ceramic sphere is rotatably installed in the valve seat, the ceramic sphere will not shake due to connection problems, avoiding cracking or damage of the ceramic sphere due to vibration, and greatly extending the service life of the ceramic sphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 for Figure 1 A side cross-sectional view of

[0016] Figure 3 for Figure 1 A top sectional view of

[0017] Figure 4 It is a schematic diagram of fluid guidance of the present invention;

[0018] Figure 5 It is a schematic diagram of the installation of the present invention at a construction site.

[0019] In the figure: 1. External tee; 2. Internal tee; 3. Elbow; 4. Inner liner; 5. Ball valve assembly; 51. Multi-way pipe; 52. Valve seat; 53. Ceramic sphere; 54. Semicircular ceramic body; 55. Water inlet; 56. Filter hole group; 6. Actuator; 7. Docking assembly; 71. Extension pipe; 72. Water outlet pipe; 73. Noise reduction pipe; 74. Water outlet; 75. Arc plate; 76. Inspection cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments. Example

[0022] like Figures 1 to 5As shown, the present invention provides a erosion-resistant ceramic ball valve with universal outflow, including an external tee pipe 1, an internal tee pipe 2 is fixedly installed inside the external tee pipe 1, both ends of the external tee pipe 1 are fixedly connected with bent pipes 3, inner lining pipes 4 are fixedly installed inside the two bent pipes 3, and the two bent pipes 3 are commonly connected to the same ball valve assembly 5.

[0023] The ball valve assembly 5 includes a multi-way tube 51 fixedly connected to two curved pipes 3, a valve seat 52 fixedly connected inside the multi-way tube 51, a ceramic sphere 53 rotatably installed inside the valve seat 52, an actuator 6 for adjusting the rotation of the ceramic sphere 53 and a docking assembly 7 for docking with other pipelines are fixedly connected on both sides of the ball valve assembly 5, the ceramic sphere 53 is composed of two semicircular ceramic bodies 54 fixedly connected, a plurality of water inlet holes 55 are opened on the two semicircular ceramic bodies 54, and the water inlet holes 55 on the two semicircular ceramic bodies 54 are symmetrically distributed about the center of the ceramic sphere 53.

[0024] As a further explanation of the embodiments of the present invention, in the prior art, most of the conventional wear-resistant angle valves are straight-stroke, and a valve core is installed on the head of the valve stem. When the valve is slightly opened, it is almost fully extended. The valve core is suspended for a long time and lacks rigid support. When the fluid passes through at high speed, the valve core vibrates greatly and the noise is high. In addition, the vibration makes the valve core and the valve seat 52 prone to high-frequency collision and even breakage. To solve this problem, the valve core and the valve seat 52 need to be made of relatively expensive and non-recyclable solid hard alloy, which is costly. However, this angle valve has poor sealing effect or even no sealing ability. At the same time, in order to reduce the vibration inside the valve, some angle valves use a labyrinth valve core, which divides the fluid into multiple streams and then offsets each other to offset energy and reduce scouring. However, this type of labyrinth valve core is generally a sleeve type. There is also slight vibration between the inner and outer sleeves after being scoured by water for a long time, and the gap between the outer cylinder and the inner cylinder is prone to scaling and jamming, resulting in frequent maintenance, especially for valve bodies under certain extreme working conditions. For example, in gas-solid two-phase or liquid-solid two-phase media with a high solid content, if it is a regulating valve working condition for regulating flow, even if a conventional ceramic ball valve with excellent wear resistance replaces a metal wear-resistant ball valve, although the service life is increased many times, compared with a metal ball valve, although the ceramic ball valve has improved wear resistance, its relatively fragile material will also reduce its tolerance to scouring vibration.

[0025] In the present embodiment, both the inner tee pipe 2 and the inner liner pipe 4 are made of ceramic, so that the scouring resistance of the entire pipeline is further improved. In order to alleviate the impact force generated by the scouring of the medium in the ceramic sphere 53, when the medium enters from one end of the inner tee pipe 2, it is diverted through the branch of the inner tee pipe 2, and the medium enters the two inner liner pipes 4 from both ends respectively. When the two streams of medium flowing from the inner liner pipe 4 impact the ceramic sphere 53, part of the medium directly flows in from the water inlet holes 55 of the two semicircular ceramic bodies 54, and each water inlet hole 55 has a corresponding relative water inlet hole 55 on the other semicircular ceramic body 54. The medium flowing in from the two relative water inlet holes 55 offsets most of the impact force after colliding in the ceramic sphere 53. At the same time, when multiple water inlet holes 55 flow into the fluid medium at the same time, due to each water inlet hole 55, the water inlet hole 55 has a corresponding relative water inlet hole 55 on the other semicircular ceramic body 54. The water holes 55 are symmetrically distributed along the center of the ceramic sphere 53, so the collision center of all the water inlet holes 55 is the center of the ceramic sphere 53. After the fluids from all directions collide, the impact force is basically offset, and the remaining medium that is not aimed at the water inlet holes 55 impacts the outer wall of the semicircular ceramic body 54 to alleviate the impact force. The outsides of the two semicircular ceramic bodies 54 simultaneously receive the impact force of the medium from two opposite directions, part of the impact offsets each other, and the remaining impact dissipates in the entire inner cavity of the ceramic sphere 53, thereby achieving the effect of overall vibration reduction. At the same time, because the ceramic sphere 53 is rotatably installed in the valve seat 52, the ceramic sphere 53 will not shake due to connection problems, avoiding cracking or damage of the ceramic sphere 53 due to vibration, so that the service life of the ceramic sphere 53 is greatly extended. In this embodiment, when the valve at the end of the inner three-way pipe 2 is in an open state and conveying a medium, the ceramic sphere 53 is driven by the actuator 6 to rotate a preset angle, so that the area with the water inlet hole 55 on the semicircular ceramic body 54 is separated from the inner lining pipe 4, and the area without the water inlet hole 55 is offset to the inner lining pipe 4, and cooperates with the valve seat 52 to seal the inner lining pipe 4 at both ends, thereby forming a relatively sealed environment, disconnecting the flow of the pipeline medium, and having an incidental scraping effect to eliminate some of the medium scaling. In conventional prior art, under vibrating working conditions, the valve core and the valve seat 52 need to be made of relatively expensive and non-recyclable solid cemented carbide, which is costly. However, in the present technical solution, the vibration is eliminated, so that the valve core and the valve seat 52 can be made of structural ceramics with slightly worse toughness than cemented carbide but lower price, which is more cost-effective.

[0026] In addition, chemical pipelines are generally designed to be horizontal and vertical. When the project is technically modified, it is often limited by the existing pipeline system and avoids the existing pipelines, resulting in a large number of elbows, large pressure loss at the elbows, and scouring and leakage accidents are prone to occur at the elbows. Or the horizontal and vertical space dimensions on site cannot allow technical modifications at the same time, and it is necessary to customize inclined pipes or curved pipes with special angles, but this requires very precise mapping, which is extremely difficult in actual operation. Therefore, combined with Figure 4 and Figure 5As shown (a to b are the medium flow directions, x and y are the angle directions that can be rotated and adjusted during installation), in this embodiment, the outer three-way pipe 1 is fixedly connected to the two elbows 3, so that the connection angle between the multi-way pipe 51 and the two elbows 3 becomes adjustable to cooperate with the multi-angle adjustment installation at the installation site.

[0027] As a further embodiment of the erosion-resistant ceramic sphere 53 with universal outflow, the diameter of the water inlet hole 55 is gradually reduced from the outer surface to the inner core of the ceramic sphere 53.

[0028] As a further illustration of an embodiment of the present invention, the water inlet hole 55 in this embodiment serves as the first impact target on the ceramic sphere 53. When facing the impact of a solid-liquid two-phase medium with a high solid content, the water inlet hole 55 has a certain filtering effect, intercepting the solid part in the medium to prevent the solid from directly entering the ceramic sphere 53 to form scaling. At the same time, when strip-shaped solid impurities block the water inlet hole 55, when the actuator 6 drives the ceramic sphere 53 to rotate, the ceramic sphere 53 cooperates with the valve seat 52 to directly cut off the strip-shaped impurities for subsequent processing.

[0029] As a further embodiment of the erosion-resistant ceramic sphere 53 with universal outflow, a plurality of water inlet holes 55 on the semicircular ceramic body 54 form a filter hole group 56, and a plurality of filter hole groups 56 are equidistantly provided on the semicircular ceramic body 54 along the circumferential direction.

[0030] As a further explanation of an embodiment of the present invention, in this embodiment, if solid impurities enter the water inlet hole 55, causing the water inlet hole 55 to be blocked and reducing the water inlet efficiency of the water inlet hole 55, the semicircular ceramic body 54 is driven to rotate by the actuator 6, so that the filter hole group 56 with more blockages is separated from the inner lining tube 4, and other filter hole groups 56 are connected to the inner lining tube 4 in rotation. In order to ensure the effect of the ceramic sphere 53 in sealing the inner lining tube 4, it is necessary to reserve a sealing surface for sealing the inner lining tube 4 between the multiple filter hole groups 56 or the remaining parts.

[0031] As a further embodiment of a universal outflow erosion-resistant ceramic ball 53, the actuator 6 is fixedly connected to the multi-way tube 51, and the output end of the actuator 6 extends into the multi-way tube 51 and is fixedly connected to the ceramic ball 53, and the output end of the actuator 6 drives the ceramic ball 53 to rotate.

[0032] As a further illustration of an embodiment of the present invention, in this embodiment, the output end of the actuator 6 fixes and supports the ceramic sphere 53 in the valve seat 52 by means of a connection method that interferes with the ceramic sphere 53, so that the ceramic sphere 53 can only rotate along the axial direction of the output end of the actuator 6 without generating any unnecessary vibration, thereby increasing the service life of the ceramic sphere 53.

[0033] As a further embodiment of a scour-resistant ceramic sphere 53 with universal outflow, the docking assembly 7 includes an extension pipe 71 fixedly connected to the multi-way pipe 51, a water outlet pipe 72 is fixedly installed in the extension pipe 71, and one end of the water outlet pipe 72 extends into the ceramic sphere 53.

[0034] As a further illustration of an embodiment of the present invention, in this embodiment, the medium converges in the ceramic sphere 53 after collision and flows out directly from the water outlet pipe 72, which can effectively reduce material accumulation. During maintenance and inspection, maintenance personnel can directly observe the degree of scouring and scaling of the inner core of the ceramic sphere 53 through the water outlet pipe 72, which is convenient for maintenance personnel to make fault judgments.

[0035] As a further embodiment of the erosion-resistant ceramic sphere 53 with universal outflow, the water outlet pipe 72 is internally threadedly connected with a noise reduction pipe 73 , and a plurality of water outlet holes 74 are formed at the bottom of the noise reduction pipe 73 .

[0036] As a further explanation of the embodiment of the present invention, in this embodiment, after the collision of the media, part of the fluid will be injected into the water outlet pipe 72, causing scouring of the pipe wall of the water outlet pipe 72. At this time, the obstruction of the noise reduction pipe 73 has a certain buffering effect. If the water inlet hole 55 of the ceramic sphere 53 generates noise during the flow of the medium, the water outlet hole 74 at the bottom of the noise reduction pipe 73 can also play a role in reducing the noise.

[0037] As a further embodiment of a scour-resistant ceramic sphere 53 with universal outflow, the bottom of the noise reduction pipe 73 is fixedly connected to an arc plate 75, and the bottom of the arc plate 75 is fitted with the bottom of the inner wall of the ceramic sphere 53, and the bottom of the multi-way pipe 51 is fixedly connected to an inspection cover 76.

[0038] As a further illustration of an embodiment of the present invention, in this embodiment, when most of the water inlet holes 55 are blocked by solid impurities, the water inlet efficiency of the ceramic sphere 53 can be avoided from being reduced by rotating and adjusting different filter hole groups 56. At this time, the filter hole group 56 containing a large amount of solid impurities is rotated toward the inspection cover 76. Through gravity traction, some solid impurities fall into the inspection cover 76, and the remaining impurities can be opened by opening the inspection cover 76 and inserting a cleaning tool into the multi-way tube 51 to absorb the impurities retained in the water inlet holes 55, thereby effectively improving the service life of the device. In addition, the bottom of the inner core of the ceramic sphere 53 is sealed in conjunction with the arc plate 75 to prevent the medium in the pipeline from flowing from the bottom of the ceramic sphere 53 into the inspection cover 76 when the actuator 6 replaces the filter hole group 56.

[0039] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0040] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A scour-resistant ceramic ball valve with universal outflow, comprising an external tee pipe (1), characterized in that: An inner tee (2) is fixedly installed inside the outer tee (1), and both ends of the outer tee (1) are fixedly connected to a bent pipe (3), and an inner lining pipe (4) is fixedly installed inside the two bent pipes (3). The two bent pipes (3) are commonly connected to a same ball valve assembly (5), and the ball valve assembly (5) comprises a multi-way pipe (51) fixedly connected to the two bent pipes (3), and a valve seat (52) is fixedly connected inside the multi-way pipe (51), and a valve seat (52) is rotatably mounted inside the valve seat (52). A ceramic sphere (53) is installed, and an actuator (6) for adjusting the rotation of the ceramic sphere (53) and a docking assembly (7) for connecting an auxiliary pipeline are fixedly connected to both sides of the ball valve assembly (5), respectively. The ceramic sphere (53) is composed of two semicircular ceramic bodies (54) that are fixedly connected, and a plurality of water inlet holes (55) are opened on the two semicircular ceramic bodies (54), and the water inlet holes (55) on the two semicircular ceramic bodies (54) are symmetrically distributed around the center of the ceramic sphere (53).

2. A universal outflow erosion-resistant ceramic ball valve according to claim 1, characterized in that: The diameter of the water inlet hole (55) is gradually reduced in the direction from the outer surface to the inner core of the ceramic sphere (53).

3. The erosion-resistant ceramic ball valve with universal outflow according to claim 1, characterized in that: The multiple water inlet holes (55) on the semicircular ceramic body (54) form a filter hole group (56), and the multiple filter hole groups (56) are equidistantly provided on the semicircular ceramic body (54) along the circumferential direction.

4. The erosion-resistant ceramic ball valve with universal outflow according to claim 1, characterized in that: The actuator (6) is fixedly connected to the multi-way tube (51), and the output end of the actuator (6) extends into the multi-way tube (51) and is fixedly connected to the ceramic sphere (53), and the output end of the actuator (6) drives the ceramic sphere (53) to rotate.

5. The erosion-resistant ceramic ball valve with universal outflow according to claim 1, characterized in that: The docking assembly (7) comprises an extension pipe (71) fixedly connected to the multi-way pipe (51), a water outlet pipe (72) being fixedly installed in the extension pipe (71), and one end of the water outlet pipe (72) extends into the ceramic sphere (53).

6. A universal outflow erosion-resistant ceramic ball valve according to claim 5, characterized in that: The water outlet pipe (72) is internally threadedly connected to a noise reduction pipe (73), and a plurality of water outlet holes (74) are formed at the bottom of the noise reduction pipe (73).

7. The erosion-resistant ceramic ball valve with universal outflow according to claim 6, characterized in that: The bottom of the noise reduction pipe (73) is fixedly connected to an arc plate (75), and the bottom of the arc plate (75) is arranged to fit the bottom of the inner wall of the ceramic sphere (53). The bottom of the multi-way pipe (51) is fixedly connected to an inspection cover (76).

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