阅读说明：本技术 一种具有泄压保护的半球阀 (Hemisphere valve with pressure release protection ) 是由 张海龙 朱双伟 沈小锋 郭继龙 于 2021-07-28 设计创作，主要内容包括：本发明涉及半球阀技术领域,尤其涉及一种具有泄压保护的半球阀,在半球阀板上增加泄压装置,该装置可以设定泄压值,当管道对严密性要求不高时且管道内介质压力过大时,便可以通过该装置进行泄压,来保证阀门的安全。本装置还可以将泄压装置进行关闭,此时阀体便不能泄压,就可以保证阀体的严密性。实现了一阀两用的功能。本发明具有结构简单,使用寿命长,能够有效保证管道内的介质处于安全压力下的优点。(The invention relates to the technical field of hemispherical valves, in particular to a hemispherical valve with pressure relief protection. This device can also close pressure relief device, and the valve body just can not the pressure release this moment, just can guarantee the leakproofness of valve body. The dual-purpose function of a valve is realized. The invention has the advantages of simple structure, long service life and capability of effectively ensuring that the medium in the pipeline is under safe pressure.)

1. The utility model provides a hemisphere valve with pressure release protection, includes pneumatic actuator (1) and valve body device (2), and pneumatic actuator (1) sets up in valve body device (2) upper end, its characterized in that: the pressure relief valve plate device (3) is arranged in the valve body device (2), the pressure relief valve plate device (3) is rotatably connected with the valve body device (2), and the pneumatic actuator (1) is in driving connection with the pressure relief valve plate device (3).

2. The hemisphere valve with pressure relief protection according to claim 1, wherein: the valve body device (2) comprises a pipeline (21), a flange plate B (22) and a sealing ring (23), the flange plate B (22) is arranged at two ends of the pipeline (21), the sealing ring (23) is connected with the flange plate B (22), and the pipeline (21) is connected with the pressure relief valve plate device (3).

3. The hemisphere valve with pressure relief protection according to claim 1, wherein: pressure release valve plate device (3) are including connecting axle (31), ring flange C (32), splint (33), rotor arm (34) and hemisphere valve plate (35), and connecting axle (31) upper end is connected with pneumatic actuator (1) drive, and ring flange C (32) and splint (33) link to each other with rotor arm (34) are passed in proper order to connecting axle (31) lower extreme, and rotor arm (34) pass through splint (33) and link to each other with pipeline (21), and rotor arm (34) link to each other with hemisphere valve plate (35), and hemisphere valve plate (35) rotate with pipeline (21) and are connected.

4. The hemisphere valve with pressure relief protection according to claim 3, wherein: hemisphere valve plate (35) includes hemisphere board (351), flat board (352), hemisphere case (353), external screw thread pipe (355), guide rod (356), nut (357), spring (358) and hydrophobic way (359), flat board (352) link to each other with hemisphere board (351), flat board (352) center is equipped with internal thread (354), external screw thread pipe (355) and flat board (352) threaded connection, nut (357) link to each other with external screw thread pipe (355), spring (358) set up in external screw thread pipe (355), guide rod (356) right-hand member links to each other with hemisphere case (353), guide rod (356) left end passes spring (358) in proper order, external screw thread pipe (355) and nut (357) and flat board (352) sliding connection, drain way (359) intercommunication hemisphere board (351) and flat board (352).

5. The hemisphere valve with pressure relief protection according to claim 1, wherein: the type of the pneumatic actuator (1) is AT 100.

6. The hemisphere valve with pressure relief protection according to claim 2, wherein: the pipeline (21) is a stainless steel pipeline.

Technical Field

The invention relates to the technical field of half-ball valves, in particular to a half-ball valve with pressure relief protection.

Background

The semi-ball valve is a new type valve developed for solving the technical problem of conveying two-phase mixed flow media such as solution, ore pulp and the like. The successful research and development of the half ball valve provides a reliable control valve for the predicament that the solution process flow in the industrial departments of chemical industry, petroleum, gas, metallurgy, electronics and the like is easy to precipitate, scale and separate out to influence the flow, and provides a novel excellent product for improving the industrial management equipment level in China. And in the normal use process, the hemisphere valve can be used for adjustment and throttling. When the high-pressure pipeline is used on some high-pressure pipelines, the medium pressure of the conveying pipeline is unbalanced, impact can be caused on the valve body, the valve body can be damaged under the condition of time accumulation, the sealing structure is made to fail, the use cost and the maintenance cost are increased, the work risk is increased, and meanwhile, the pipeline is damaged to a certain extent due to the fact that the medium pressure is too large.

Therefore, a hemisphere valve with pressure relief protection is needed to solve the above problems.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a hemisphere valve with pressure relief protection, in which a pressure relief device is added to a hemisphere valve plate, so that a pressure relief value can be set, and when a medium pressure in a pipeline is too high, pressure can be relieved through the device, thereby ensuring the safety of the valve. The invention has the advantages of simple structure, long service life and capability of effectively ensuring that the medium in the pipeline is under safe pressure.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a hemisphere valve with pressure release protection, includes pneumatic actuator and valve body device, and pneumatic actuator sets up in valve body device upper end, be equipped with pressure release valve plate device in the valve body device, pressure release valve plate device rotates with the valve body device to be connected, and pneumatic actuator and pressure release valve plate device drive are connected.

Further, the valve body device comprises a pipeline, flange plates B and sealing rings, wherein the flange plates B are arranged at two ends of the pipeline, the sealing rings are connected with the flange plates B, and the pipeline is connected with the pressure relief valve plate device.

Further, the pressure relief valve plate device comprises a connecting shaft, a flange plate C, a clamping plate, a rotating arm and a hemispherical valve plate, the upper end of the connecting shaft is in driving connection with a pneumatic actuator, the lower end of the connecting shaft sequentially penetrates through the flange plate C and the clamping plate to be connected with the rotating arm, the rotating arm is connected with the pipeline through the clamping plate and is connected with the hemispherical valve plate, and the hemispherical valve plate is in rotating connection with the pipeline.

Further, the hemisphere valve plate includes hemisphere board, flat board, hemisphere case, external screw thread pipe, guide rod, nut, spring and drainage way, and the flat board links to each other with the hemisphere board, and dull and stereotyped center is equipped with the internal thread, and external screw thread pipe and dull and stereotyped threaded connection, nut and external screw thread pipe link to each other, and the spring setting is in external screw thread pipe, and the guide rod right-hand member links to each other with the hemisphere case, and the guide rod left end passes spring, external screw thread pipe and nut and dull and stereotyped sliding connection in proper order, and drainage way intercommunication hemisphere board and flat board.

Further, the pneumatic actuator is AT 100.

Further, the pipeline is a stainless steel pipeline.

The invention has the advantages that: the invention provides a hemisphere valve with pressure relief protection.A pressure relief device is additionally arranged on a hemisphere valve plate, the device can set a pressure relief value, and when the requirement of a pipeline on tightness is not high and the pressure of a medium in the pipeline is overlarge, the device can be used for relieving the pressure to ensure the safety of the valve. This device can also close pressure relief device, and the valve body just can not the pressure release this moment, just can guarantee the leakproofness of valve body. The dual-purpose function of a valve is realized. The invention has the advantages of simple structure, long service life and capability of effectively ensuring that the medium in the pipeline is under safe pressure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic front view of a three-dimensional structure of the present invention;

FIG. 3 is a schematic view of a pressure relief valve plate apparatus of the present invention;

FIG. 4 is a schematic view in half section of the valve cartridge of the present invention;

wherein: 1. a pneumatic actuator; 2. a valve body arrangement; 21. a pipeline; 22. a flange B; 23. a seal ring; 3. a pressure relief valve plate arrangement; 31. a connecting shaft; 32. a flange plate C; 33. a splint; 34. a rotating arm; 35. a valve core; 351. a hemispherical plate; 352. a flat plate; 353. a hemispherical valve core; 354. an internal thread; 355. an externally threaded round tube; 356. a guide rod; 357. a nut; 358. a spring; 359. and (4) dredging channels.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

fig. 1 is a schematic perspective view of a structure of the invention, and as shown in fig. 1, the hemisphere valve with pressure relief protection includes a pneumatic actuator 1 and a valve body device 2, the pneumatic actuator 1 is arranged at the upper end of the valve body device 2, the pneumatic actuator 1 is fixedly connected with the valve body device 2, a pressure relief valve plate device 3 is arranged in the valve body device 2, the pressure relief valve plate device 3 is rotatably connected with the valve body device 2, and the pneumatic actuator 1 is in driving connection with the pressure relief valve plate device 3. The pneumatic actuator is of the type AT 100. So set up, drive pressure release valve plate device 3 in the valve body device 2 through pneumatic actuator 1 and open and shut, can accomplish closing and opening the pipeline, pressure release valve plate device 3 can carry out the pressure release work simultaneously, and pressure release valve plate device 3 also can be out of work, guarantees the leakproofness of hemisphere valve.

Example 2:

fig. 2 is a schematic front view of a three-dimensional structure of the present invention, and as shown in fig. 2, the hemispherical valve with pressure relief protection includes a pipeline 21, a flange B22 and a sealing ring 23, the flanges B22 are disposed at two ends of the pipeline 21, the flange B22 is fixedly connected to the pipeline 21, the sealing ring 23 is fixedly connected to the flange B22, and the pipeline 21 is connected to the pressure relief valve plate device 3. The pipeline is stainless steel pipeline, so sets up, and whole hemisphere valve is connected with medium pipeline through pipeline 21, has protection and bearing to the valve plate in it to obtain the effect, adopts the stainless steel pipeline can effectual increase valve body's life.

Example 3:

fig. 3 is a schematic view of a pressure relief valve plate device according to the present invention, such as the hemispherical valve with pressure relief protection shown in fig. 3, where the pressure relief valve plate device 3 includes a connecting shaft 31, a flange C32, a clamping plate 33, a rotating arm 34 and a hemispherical valve plate 35, the upper end of the connecting shaft 31 is drivingly connected to the pneumatic actuator 1, the lower end of the connecting shaft 31 sequentially passes through the flange C32 and the clamping plate 33 and is connected to the rotating arm 34, the connecting shaft 31 is fixedly connected to the rotating arm 34, the rotating arm 34 is connected to the pipeline 21 through the clamping plate 33, the rotating arm 34 is fixedly connected to the hemispherical valve plate 35, and the hemispherical valve plate 35 is rotatably connected to the pipeline 21. So set up, drive hemisphere valve plate 35 through rotor arm 34 and rotate, realize opening and closing the pipeline, hemisphere valve plate 35 breaks away from with pipeline 21 mutually when opening, and the runner is straight, can not appear blocking, stifled phenomenon.

Example 4:

fig. 4 is a half-sectional schematic view of a valve core of the present invention, and as shown in fig. 4, the hemispherical valve plate 35 with pressure relief protection includes a hemispherical plate 351, a flat plate 352, a hemispherical valve core 353, an externally threaded circular tube 355, a guide rod 356, a nut 357, a spring 358 and a water drainage channel 359, the flat plate 352 and the hemispherical plate 351 are fixedly connected by a screw, the flat plate 352 is provided with an internal thread 354 at the center, the externally threaded circular tube 355 is in threaded connection with the flat plate 352, the nut 357 is fixedly connected with the externally threaded circular tube 355, the spring 358 is arranged in the externally threaded circular tube 355, the right end of the guide rod 356 is fixedly connected with the hemispherical valve core 353, the left end of the guide rod 356 passes through the spring 358, the externally threaded circular tube 355 and the nut 357 in sequence to be slidably connected with the flat plate 352, and the water drainage channel 359 is communicated with the hemispherical plate 351 and the flat plate 352. By the arrangement, when the use scene does not have high requirement on the tightness of the valve under the working condition, the pressure of a medium pipeline is high, the pressure relief value can be set through the knob nut 357, when the medium pressure is higher than a set value, the hemispherical valve core 353 can move inwards to compress the spring 358, the medium can flow out of the valve through the drainage channel 359 to relieve the pressure, and when the pressure returns to normal, the spring 357 rebounds to prop the hemispherical valve core 353 against the central hole of the hemispherical plate 351 to prevent the medium from flowing out excessively; when the use scene requires high tightness, the nut 357 can be turned until the external thread round pipe 355 moves inwards to firmly prop the hemispherical valve core 353 against the central hole of the hemispherical plate 351, and at the moment, the pressure relief function is invalid, so that the tightness of the whole hemispherical valve can be ensured.

The working mode is as follows: the invention provides a hemisphere valve with pressure relief protection, when the invention is used, install the whole valve body on the corresponding pipeline first, then presume according to the working condition of use, when the use scene does not require under the very high working condition to the valve tightness, and the medium pipeline pressure is very large, can carry on the arrangement of the relief value through the knob nut 357 at this moment, when the medium pressure is greater than the set value, can make the hemisphere valve core 353 move inwards, compress the spring 358, the medium will flow out of the valve through the drainage course 359 at this moment, carry on the relief, after the pressure resumes normally, the spring 357 rebounds and supports the hemisphere valve core 353 in the central bore of the hemisphere board 351, prevent the excessive outflow of medium; when the use scene requires high tightness, the nut 357 can be turned until the external thread round pipe 355 moves inwards to firmly prop the hemispherical valve core 353 against the central hole of the hemispherical plate 351, and at the moment, the pressure relief function is invalid, so that the tightness of the whole hemispherical valve can be ensured.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.