CN215371062U - Hard seal floating ball valve for boiling bed residual oil hydrogenation device - Google Patents
Hard seal floating ball valve for boiling bed residual oil hydrogenation device Download PDFInfo
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- CN215371062U CN215371062U CN202120712555.4U CN202120712555U CN215371062U CN 215371062 U CN215371062 U CN 215371062U CN 202120712555 U CN202120712555 U CN 202120712555U CN 215371062 U CN215371062 U CN 215371062U
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Abstract
The utility model discloses a hard seal floating ball valve for a boiling bed residual oil hydrogenation device in the technical field of industrial valves, which comprises a valve body, wherein an end cover is arranged on the left side of the valve body, a ball body is arranged in a cavity of the valve body, a valve rod is arranged above the ball body, and metal valve seats with the same mechanisms are symmetrically arranged on two sides of the ball body, and the hard seal floating ball valve is characterized in that: the bottom of the valve body is provided with a sewage discharging flange and a flushing flange, the middle part of the side surface of the valve body is provided with the flushing flange, and the sewage discharging flange, the flushing flange and the valve body are connected with the valve body in a socket welding mode. By arranging the flushing flange, the problem of adhesion of solid particles on the surface of a disc spring chamber and a sphere when the valve is applied to a boiling bed residual oil hydrogenation device is solved, and the valve switch is prevented from being blocked; through setting up bottom blowdown flange, solve solid particle and cause spheroid rotation jamming and locking phenomenon because of scale deposit or medium coking in the valve body cavity, ensure the normal on-off switch of valve.
Description
Technical Field
The utility model belongs to the technical field of industrial valves, and particularly relates to a hard seal floating ball valve.
Background
The floating ball valve is a valve using ball body as closing component, in the middle of ball body a through hole communicated with pipeline is set, and the circular flow channel of ball body whose diameter is not reduced is connected with the circular flow channel of valve body to form straight pipe section. The floating ball valve has the main function of cutting off or connecting a fluid channel in a pipeline, and has the action principle that a certain torque is applied to the upper end of a valve rod by a handle or other driving devices and is transmitted to a ball body, so that the ball body rotates for 90 degrees (except for a valve with a special structure), and when a through hole in the ball body is vertical to a pipeline channel, the valve is in a closed state; when the passage in the ball is in line with the pipeline passage, the valve is in an open state. The floating ball valve has the characteristics of small flow resistance, small volume, quick opening and closing, convenient operation, safety, reliability and the like, and partially replaces a gate valve, a stop valve, a plug valve and a butterfly valve.
The ball body of the floating ball valve is supported by valve seats at the two sides of the inlet and the outlet, when the ball valve is in a closed state, the ball body has the tendency of moving towards the outlet direction and extruding the valve seat of the outlet under the pushing of the medium pressure of a pipeline, and the ball body generates displacement in the flowing direction of fluid under the action of the fluid pressure, so that the ball body is attached to the sealing surface of the valve seat behind the valve to realize sealing. The current hard seal floating ball valve covers most application fields and has satisfactory application effect. However, for a long time, the common floating ball valve is limited by the structure and materials, and still cannot be applied to the harsh working condition requirements of the boiling bed residual oil hydrogenation device, such as the medium is not allowed to carry particles, the use temperature cannot be too high, and the like. Therefore, the hard seal floating ball valve which is reasonable in structure, reliable in performance and suitable for being used as a medium of asphalt, residual oil, catalyst solid particles, hydrogen and hydrogen sulfide and stably runs under the working condition of alternating temperature and pressure is developed, the service life and the period of the valve are favorably prolonged, the problem of unplanned shutdown of a boiling bed residual oil hydrogenation device caused by coking or blockage of the medium in the valve is favorably solved, the running efficiency of the boiling bed residual oil hydrogenation device is favorably improved, and the hard seal floating ball valve has important significance for improving the processing efficiency of heavy and poor crude oil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hard seal floating ball valve for a boiling bed residual oil hydrogenation device, which aims to solve the technical problems that the floating ball valve in the prior art cannot be suitable for the severe working condition requirements of the boiling bed residual oil hydrogenation device, such as the medium cannot carry particles, the service temperature cannot be too high, and the like. The problems of blocking of the valve during opening and closing and accumulation and coking of media in the valve cavity can be solved, the wear resistance and the scouring resistance of the sealing surface can be improved, the corrosion and the cracks of a spraying layer of the sealing surface are avoided, and the damage to the sealing part of the valve is reduced.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides a ball valve that floats is sealed firmly for boiling bed residual oil hydrogenation device, includes the valve body, has the end cover on the left of the valve body, is equipped with the spheroid in the valve body intracavity, and the spheroid top is equipped with the valve rod, at the same metal disk seat of spheroid bilateral symmetry arrangement mechanism, its characterized in that: the bottom of the valve body is provided with a sewage discharging flange and a flushing flange, the middle part of the side surface of the valve body is provided with the flushing flange, and the sewage discharging flange, the flushing flange and the valve body are connected with the valve body in a socket welding mode.
The utility model relates to a hard seal floating ball valve for a boiling bed residual oil hydrogenation device, which is further characterized in that: the positions of the valve body corresponding to the flushing flange and the sewage discharging flange are provided with bell and spigot ports, and the flushing flange and the sewage discharging flange are connected with the valve body in a bell and spigot welding mode.
The utility model relates to a hard seal floating ball valve for a boiling bed residual oil hydrogenation device, which is further characterized in that: the flushing flange is connected with the valve body in a socket welding mode through one end of the short pipe, one end of the flange of the flushing flange is externally connected with a flushing pipeline, and the flushing flange arranged on the side face of the valve body mainly flushes the surface of the sphere and a cavity of the valve body to prevent solid particles from adhering to influence the rotation of the sphere; the washing flange arranged at the bottom of the valve body mainly washes the area surrounded by the valve seat and the disc spring, so that solid particles are prevented from being accumulated and blocked to cause disc spring failure, and meanwhile, the valve cavity, the disc spring cavity and the surface of the ball body can be washed by the washing flange.
The utility model relates to a hard seal floating ball valve for a boiling bed residual oil hydrogenation device, which is further characterized in that: the drainage flange at the bottom of the valve body is connected with the valve body in a socket welding mode through one end of the short pipe, one end of the flange of the drainage flange is externally connected with a drainage pipeline, and accumulated media (residual oil, solid particles and the like) staying in the valve cavity in the opening and closing process of the valve can be timely discharged by the drainage flange at the bottom of the valve body.
The utility model relates to a hard seal floating ball valve for a boiling bed residual oil hydrogenation device, which is further characterized in that: in order to realize the wear resistance and corrosion resistance of the sealing surface, the ball body and the sealing surface of the valve seat adopt a hardening process of spray welding Co-WC powder, the outer surface of the hardened layer has metallic luster, the hardness of the hardened layer is 700HV-750HV, and the thickness of the hardened layer is more than or equal to 0.3 mm.
The utility model has the following beneficial effects:
by arranging the flushing flange, the problem of adhesion of solid particles on the surface of a disc spring chamber and a sphere when the valve is applied to a boiling bed residual oil hydrogenation device is solved, and the valve switch is prevented from being blocked; by arranging the bottom sewage discharge flange, the problems of rotation jamming and locking of the ball body caused by scaling or medium coking of solid particles in the cavity of the valve body are solved, and the normal opening and closing of the valve are ensured; through a surface hardening process of a specific material, the problem that a hardened layer is peeled off due to corrosion and cracks of a sealing surface coating under a high-temperature sulfur-containing working condition is solved, and the long-period stable operation of the floating ball valve on a residual oil hydrogenation device of a fluidized bed is realized.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The drawings and detailed description do not limit the scope of the utility model.
Drawings
FIG. 1 is a schematic structural diagram of a hard-seal floating ball valve for an ebullated bed residuum hydrogenation unit according to the present invention;
fig. 2 is a right side view of fig. 1.
Wherein the reference symbols shown are: 1-valve body, 2-disc spring, 3-right valve seat, 4-flushing flange, 5-ball, 6-sewage discharging flange, 7-gasket, 8-end cover, 9-fixing plate, 10-screw, 11-stud, 12-nut, 13-left valve seat, 14-driving device, 15-bracket, 16-filler fastener, 17-pressing sleeve, 18-bracket fastener, 19-filler, 20-valve rod and 21-socket welding.
Detailed Description
The utility model is further described with reference to the following figures.
As shown in the attached drawings 1 and 2, a hard seal floating ball valve for a boiling bed residual oil hydrogenation device mainly comprises a valve body 1, a disc spring 2, a right valve seat 3, a flushing flange 4, a ball body 5, a sewage discharging flange 6, a gasket 7, an end cover 8, a fixing plate 9, a screw 10, a stud 11, a nut 12, a left valve seat 14, a driving device 14, a support 15, a packing fastener 16, a pressing sleeve 17, a support fastener 18, a packing 19, a valve rod 20 and other parts, wherein the gasket 7 is arranged between the valve body 1 and the end cover 8 and is pre-tightened through the fastener stud 11 and the nut 12 to form static seal of a flange in the valve; the ball body 5 is installed in the cavity of the valve body 1 through lateral translation, a ball groove on the ball body 5 is matched with the valve rod 20, the driving device 14 drives the valve rod 20 to rotate to control the rotation of the ball body 5, when a circular channel of the ball body 5 and the circular channel of the valve body 1 are on the same plane, the valve is fully opened, and when the circular channel of the ball body 5 is vertical to the circular channel of the valve body 1, the valve is closed; the packing 19 is placed in a circumferential gap between the valve rod 20 and the valve body 1 and is fixed through the pressing sleeve 17 and the packing fastener 16 to form dynamic sealing at the position of the valve rod 20; valve seats are symmetrically distributed on two sides of the sphere 5, wherein a left valve seat 13 is fixed on the end cover 8 through a screw 10 and a fixing plate 9, and the left valve seat 13 is ensured to be attached to a sealing surface in the end cover 8; the right valve seat 3 is installed in a cavity of the valve body 1, after the valve body 1 is fixedly connected with the end cover 8, the right valve seat 3 moves towards the left side under the pushing of the disc spring 2 and drives the ball body 5 to move synchronously, when the ball body 5 is attached to the arc sealing surfaces of the right valve seat 3, the ball body 5 and the left valve seat 13 in pairs, and when the left valve seat 13 is attached to the plane sealing surface of the end cover 8, the initial sealing of the valve is established.
In the figure 1, one end of a short pipe of a sewage discharging flange 6 at the bottom of a valve body 1 is connected with the valve body 1 in a socket welding 21 mode, one end of the flange is externally connected with a sewage discharging pipeline, and medium accumulated liquid (residual oil, solid particles and the like) staying in a valve cavity in the opening and closing process of the valve can be timely discharged through the sewage discharging flange 6 at the bottom of the valve body 1, so that the accumulated liquid is prevented from scaling or blocking rotation of a sphere caused by accumulation of solid catalyst particles in the temperature alternation process.
Referring to fig. 1 and 2, a flushing structure of the floating ball valve is described, wherein one end of a short pipe of a flushing flange 4 is connected with a valve body 1 in a socket welding 21 mode, and one end of the flange is externally connected with a flushing pipeline, wherein the flushing flange 4 arranged on the side surface of the valve body 1 mainly flushes the surface of a ball body 5 and a cavity of the valve body 1 to prevent solid particles from adhering to influence the rotation of the ball body 5; the washing flange 4 that the 1 bottom of valve body was arranged mainly washes the region that disk seat 3 and dish spring 2 surrounded, prevents that solid particle from piling up the jam and causing the dish spring inefficacy, influences the sealed pretightning force of valve.
The foregoing detailed description is intended to be illustrative of the present application and is not intended to be limiting, as any modifications and variations may be made thereto without departing from the scope of the utility model.
Claims (6)
1. The utility model provides a ball valve that floats is sealed firmly for boiling bed residual oil hydrogenation device, includes the valve body, has the end cover on the left of the valve body, is equipped with the spheroid in the valve body intracavity, and the spheroid top is equipped with the valve rod, at the same metal disk seat of spheroid bilateral symmetry arrangement mechanism, its characterized in that: the bottom of the valve body is provided with a sewage discharging flange and a flushing flange, the middle part of the side surface of the valve body is provided with the flushing flange, and the sewage discharging flange, the flushing flange and the valve body are connected with the valve body in a socket welding mode.
2. The hard-seal floating ball valve of claim 1, wherein: the positions of the valve body corresponding to the flushing flange and the sewage discharging flange are provided with bell and spigot ports, and the flushing flange and the sewage discharging flange are connected with the valve body in a bell and spigot welding mode.
3. The hard-seal floating ball valve of claim 1, wherein: the flushing flange is connected with the valve body in a socket welding mode through one end of the short pipe, and one end of the flange of the flushing flange is externally connected with a flushing pipeline.
4. The hard-seal floating ball valve of claim 1, wherein: and a sewage discharge flange at the bottom of the valve body is connected with the valve body in a socket welding mode through one end of a short pipe, and one end of the flange of the sewage discharge flange is externally connected with a sewage discharge pipeline.
5. The hard-seal floating ball valve of claim 1, wherein: and a hardened layer of Co-WC powder is sprayed and welded on the sealing surface of the ball body and the valve seat.
6. The hard-seal floating ball valve of claim 5, wherein: the hardness of the hardened layer is 700HV-750HV, and the thickness of the hardened layer is more than or equal to 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712555.4U CN215371062U (en) | 2021-04-08 | 2021-04-08 | Hard seal floating ball valve for boiling bed residual oil hydrogenation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712555.4U CN215371062U (en) | 2021-04-08 | 2021-04-08 | Hard seal floating ball valve for boiling bed residual oil hydrogenation device |
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| Publication Number | Publication Date |
|---|---|
| CN215371062U true CN215371062U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120712555.4U Active CN215371062U (en) | 2021-04-08 | 2021-04-08 | Hard seal floating ball valve for boiling bed residual oil hydrogenation device |
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| CN (1) | CN215371062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11828386B1 (en) | 2022-05-24 | 2023-11-28 | Flowserve Pte. Ltd. | Purge assemblies for valves and related devices, apparatus, systems, and methods |
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2021
- 2021-04-08 CN CN202120712555.4U patent/CN215371062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11828386B1 (en) | 2022-05-24 | 2023-11-28 | Flowserve Pte. Ltd. | Purge assemblies for valves and related devices, apparatus, systems, and methods |
| WO2023228024A1 (en) * | 2022-05-24 | 2023-11-30 | Flowserve Pte. Ltd. | Purge assemblies for valves and related devices, apparatus, systems, and methods |
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