阅读说明：本技术 一种新型高密封性抗压调节阀 (Novel high leakproofness resistance to compression governing valve ) 是由 李俊宽 徐雪芬 何远旺 程围 于 2020-12-07 设计创作，主要内容包括：一种新型高密封性抗压调节阀,包括阀体、设置于所述阀体内部的阀杆、设置于所述阀体上端部用于安装所述阀杆的安装孔、所述阀体内部设置有用于流体经过的流道,所述阀体内部设置有用于支撑所述阀杆的支撑架,所述支撑架上设置有密封结构,所述密封结构与所述阀杆紧密接触。本发明设置密封结构,防止在阀杆上下移动过程中,阀体内部的流体渗出,影响阀体的密封性。(The utility model provides a novel high leakproofness resistance to compression governing valve, include the valve body, set up in inside valve rod of valve body, set up in the valve body upper end is used for the installation the mounting hole of valve rod the inside runner that is used for the fluid process that is provided with of valve body, the inside support that is used for supporting that is provided with of valve body the support frame of valve rod, be provided with seal structure on the support frame, seal structure with valve rod in close contact with. The invention is provided with the sealing structure, so that the fluid in the valve body is prevented from seeping out to influence the sealing property of the valve body in the process of moving the valve rod up and down.)

1. The utility model provides a novel high leakproofness resistance to compression governing valve, include valve body (1), set up in inside valve rod (2) of valve body (1), set up in valve body (1) upper end is used for the installation mounting hole (3) of valve rod (2), inside runner (4) that are used for the fluid to pass through that are provided with of valve body (1), its characterized in that: the valve is characterized in that a support frame (5) used for supporting the valve rod is arranged inside the valve body (1), a sealing structure (6) is arranged on the support frame, and the sealing structure (6) is in close contact with the valve rod (2).

2. The novel high-sealability pressure-resistant valve according to claim 1, wherein: the sealing structure (6) comprises two sealing rings (61) with convex parts (611), the convex parts (611) are arranged on the inner side walls of the sealing rings (61), and the outer edges of the convex parts (611) are arc-shaped.

3. The novel high-sealability pressure-resistant valve according to claim 2, wherein: the outer edge of the convex part (611) and the edge of the sealing ring (61) are in arc transition.

4. The novel high-sealability pressure-resistant valve according to claim 3, wherein: the sealing structure (6) further comprises a first spacer ring (62) arranged between the two sealing rings (61), a second spacer ring (63) attached to the bottom of the sealing ring (61), and a righting ring (64) attached to the top of the sealing ring (61).

5. The novel high-sealability pressure-resistant valve according to claim 4, wherein: the valve rod (2) can move up and down and is arranged in the valve body (1), the valve rod (2) comprises a valve core (21) which is arranged at the lower end part of the valve rod (2) and is positioned in a flow channel state and a deviation flow channel state, and the valve core (21) is conical.

6. The novel high-sealability pressure-resistant valve according to claim 5, wherein: when the valve core (21) is in a flow channel state, the flow in the flow channel is reduced, when the valve core (21) is in a flow channel deviating state, the flow in the flow channel is increased, the valve core (21) is switched between the flow channel state and the flow channel deviating state, and the valve rod (2) is matched with the valve core (21) to move up and down.

7. The novel high-sealability pressure-resistant valve according to claim 4, wherein: the inner diameters of the sealing ring (61), the first spacer ring, the second spacer ring (62, 63) and the righting ring (64) are matched with the outer diameter of the valve rod (2).

8. The novel high-sealability pressure-resistant valve according to claim 2, wherein: the sealing ring (61) is made of softer rubber material, and the convex part (611) is made of plastic with higher elastic modulus.

Technical Field

The invention belongs to a novel high-sealing pressure-resistant regulating valve.

Background

In the field of industrial automation process control, a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like is operated by power by receiving a control signal output by an adjusting control unit, and the adjusting valve is suitable for media such as air, water, steam, various corrosive media, slurry, oil and the like.

Disclosure of Invention

The invention aims to provide a novel high-sealing pressure-resistant regulating valve.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a novel high leakproofness resistance to compression governing valve, include the valve body, set up in inside valve rod of valve body, set up in the valve body upper end is used for the installation the mounting hole of valve rod the inside runner that is used for the fluid process that is provided with of valve body, the inside support that is used for supporting that is provided with of valve body the support frame of valve rod, be provided with seal structure on the support frame, seal structure with valve rod in close contact with.

In some embodiments, the sealing structure comprises two sealing rings with convex portions, the convex portions are arranged on the inner side walls of the sealing rings, and the outer edges of the convex portions are arc-shaped.

In some embodiments, the outer edge of the protrusion is curved to the edge of the seal ring.

In some embodiments, the sealing structure further comprises a first spacer ring disposed between the two sealing rings, a second spacer ring attached to the bottom of the sealing rings, and a centering ring attached to the top of the sealing rings.

In some embodiments, the valve rod can move up and down and is arranged in the valve body, the valve rod comprises a valve core which is arranged at the lower end part of the valve rod and has a flow passage state and a deviation flow passage state, and the valve core is conical.

In some embodiments, when the valve core is in the flow passage state, the flow rate in the flow passage becomes small, when the valve core is in the off-flow passage state, the flow rate in the flow passage becomes large, the valve core is switched between the in-flow passage state and the off-flow passage state, and the valve rod moves up and down in cooperation with the valve core.

In some embodiments, the inner diameters of the seal ring, the first spacer ring, the second spacer ring and the centering ring are matched with the outer diameter of the valve rod.

In some embodiments, the seal ring is a seal ring made of a softer rubber material, and the protrusion is a protrusion made of a plastic with a higher modulus of elasticity.

The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention is provided with the sealing structure, so that the fluid in the valve body is prevented from seeping out to influence the sealing property of the valve body in the process of moving the valve rod up and down.

Drawings

FIG. 1 is a schematic view of a regulator valve;

FIG. 2 is an enlarged schematic view of the seal structure;

wherein 1, a valve body; 2. a valve stem; 21. a valve core; 3. mounting holes; 4. a flow channel; 5. a support frame; 6. a sealing structure; 61. a seal ring; 611. a convex portion; 62. a first spacer ring; 63. a second spacer ring; 64. a righting ring.

Detailed Description

As shown in the accompanying drawings, the novel high-sealing pressure-resistant regulating valve comprises a valve body 1, a valve rod 2 arranged in the valve body 1, a mounting hole 3 arranged at the upper end of the valve body 1 and used for mounting the valve rod 2, a flow passage 4 used for fluid to pass through is arranged in the valve body 1, a support frame 5 used for supporting the valve rod is arranged in the valve body 1, a sealing structure 6 is arranged on the support frame, and the sealing structure 6 is tightly contacted with the valve rod 2.

As shown in fig. 2, the seal structure 6 includes two seal rings 61 having convex portions 611, the convex portions 611 are provided on the inner side walls of the seal rings 61, and the outer edges of the convex portions 611 are formed in a circular arc shape. Convex part 611 outer fringe and sealing washer 61 edge looks pitch arc transition, and seal structure contacts with the valve rod through the convex part for area of contact diminishes, has increased the leakproofness, has reduced frictional resistance, and when first sealing washer became invalid, the fluid can be along with the seam that became invalid

The gap flows inward and the second sealing ring compensates for this failure with just high tightness.

As shown in fig. 2, the sealing structure 6 further includes a first spacer ring 62 disposed between the two sealing rings 61, a second spacer ring 63 attached to the bottom of the sealing ring 61, and a righting ring 64 attached to the top of the sealing ring 61.

The valve rod 2 can move up and down and is arranged in the valve body 1, the valve rod 2 comprises a valve core 21 which is arranged at the lower end part of the valve rod 2 and has a flow channel state and a deviation flow channel state, and the valve core 21 is conical. The conical valve core can adjust the flow rate of the fluid.

When the valve core 21 is in a flow channel state, the flow in the flow channel is reduced, when the valve core 21 is in a flow channel deviating state, the flow in the flow channel is increased, the valve core 21 is switched between the flow channel state and the flow channel deviating state, the valve rod 2 is matched with the valve core 21 to move up and down, and the manual regulating switch is arranged at the top end of the valve rod, so that the flow rate of the fluid can be manually regulated.

The inner diameters of the sealing ring 61, the first spacer ring 62, the second spacer ring 63 and the righting ring 64 are matched with the outer diameter of the valve rod 2, and the first spacer ring, the second spacer ring and the righting ring are tightly abutted against the valve rod, so that the sealing performance is enhanced.

The seal ring 61 is made of a softer rubber material, and the convex portion 611 is made of a plastic having a higher elastic modulus.

In the embodiment, the sealing ring can be made of butadiene-acrylonitrile rubber material which is soft and is easy to be extruded and deformed. The convex part is made of poly-tetra-n-ethylene material, the elastic modulus is higher than that of rubber by dozens of times, and the convex part is not easy to be extruded and deformed. When the composite sealing structure is initially installed, gaps exist between the sealing structure and the solid wall surface, as shown in fig. 2, when the regulating valve works, the inner fluid pushes the centering ring, the bottom of the centering ring firstly extrudes the rubber sealing ring, the rubber sealing ring is extruded and deformed to interact with polytetrafluoroethylene plastic, the plastic sealing ring is extruded, and the whole sealing ring does radial expansion motion. The plastic sealing ring is tightly attached to the valve rod, so that good sealing performance is guaranteed, and the larger the acting force between the sealing ring and metal is, the better the sealing performance is.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.