阅读说明：本技术 一种侧装高压力快速开启球阀 (Side-mounted high-pressure quick-opening ball valve ) 是由 侯峰伟 吴斌 慕彦云 陈德江 唐志共 曾品其 朱超 袁世伟 于子泉 刘崇智 王利 于 2021-11-22 设计创作，主要内容包括：本发明专利涉及阀门,具体涉及一种侧装高压力快速开启球阀,包括：阀体、阀杆和球体；阀体的壁上开有用于阀杆插入的外孔和用于物料流通的固定通道；阀杆通过所述外孔伸入于该阀体的内腔,所述阀体的外孔与阀杆适配；球体设置于阀体的内腔中并与阀杆连接；阀体上设置用于与执行器连接的执行器联结盘,所述执行器联结盘上设置有与外孔对应的穿孔,所述阀杆的一端依次穿过穿孔、外孔伸入到阀体的内腔中与球体连接；其中,所述执行器联结盘焊接在所述阀体上。通过采用本一种侧装高压力快速开启球阀,避免了采用螺栓容易受剪切造成破坏的不稳定情况,提升了阀门使用的安全可靠性。(The invention relates to a valve, in particular to a side-mounted high-pressure quick-opening ball valve, which comprises: a valve body, a valve rod and a ball body; the wall of the valve body is provided with an outer hole for inserting the valve rod and a fixed channel for material circulation; the valve rod extends into the inner cavity of the valve body through the outer hole, and the outer hole of the valve body is matched with the valve rod; the ball is arranged in the inner cavity of the valve body and is connected with the valve rod; the valve body is provided with an actuator coupling disc used for being connected with an actuator, the actuator coupling disc is provided with a through hole corresponding to the outer hole, and one end of the valve rod sequentially penetrates through the through hole and the outer hole to extend into the inner cavity of the valve body to be connected with the ball body; wherein the actuator coupling disk is welded to the valve body. Through adopting this side dress high pressure to open ball valve fast, avoided adopting the bolt to receive the unstable condition that the shearing caused destruction easily, promoted the fail safe nature that the valve used.)

1. A side-mounted high-pressure quick-opening ball valve is characterized by comprising: a valve body, a valve rod and a ball body;

the wall of the valve body is provided with an outer hole for inserting the valve rod and a fixed channel for material circulation;

the valve rod extends into the inner cavity of the valve body through the outer hole, and the outer hole of the valve body is matched with the valve rod;

the ball body is arranged in the inner cavity of the valve body and is connected with the valve rod;

the valve body is provided with an actuator coupling disc used for being connected with an actuator, the actuator coupling disc is provided with a through hole corresponding to the outer hole, and one end of the valve rod sequentially penetrates through the through hole and the outer hole to extend into the inner cavity of the valve body to be connected with the ball body; wherein the actuator coupling disk is welded to the valve body.

2. A side-mounted high-pressure quick-opening ball valve as claimed in claim 1, wherein said ball body is provided with an inner bore for abutting against an end of said valve stem, the bore wall of said inner bore is provided with a toothed groove extending along the axis of said inner bore, and the portion of said valve stem fitting said inner bore is provided with gear teeth fitting said toothed groove.

3. A side-mounted high-pressure quick-opening ball valve as claimed in claim 1, wherein bearings abutting against the ball and the inner wall of the inner cavity of the valve body are provided on both sides of the ball in the axial direction of the outer hole.

4. A side-mounted high pressure quick opening ball valve as claimed in claim 1 wherein said valve stem is provided with an outwardly extending flange, the side of said flange facing the actuator coupling disc being provided with a sealing ring captured between the valve stem and the actuator coupling disc, one end of said sealing ring abutting one side of said flange and the other end of said sealing ring abutting a portion of the aperture of the actuator coupling disc.

5. The side-mounted high-pressure quick-opening ball valve as claimed in claim 4, wherein a clamping groove is formed in the inner wall of the through hole of the actuator coupling disc, a fixing clamping ring is arranged in the clamping groove, and one side of the fixing clamping ring abuts against one end, away from the flange, of the sealing ring; the actuator coupling disc is provided with a gland which is positioned in the actuator coupling disc, and one end of the gland facing the sealing ring is abutted against one side of the fixed clamping ring departing from the flange.

6. A side-mounted high-pressure quick-opening ball valve as claimed in claim 5, wherein the portion of the gland in contact with the valve stem and the portion of the valve body in contact with the valve stem are provided with bearings.

7. A side-mounted high-pressure quick-opening ball valve according to claim 1, wherein the surface of said ball is provided with a hardened layer formed by spraying.

8. A side-mounted high pressure quick opening ball valve as claimed in claim 1, wherein a valve seat is provided between said ball and the inner wall of the valve body in the direction along said fixed passage.

9. A side-mounted high-pressure quick-opening ball valve according to claim 8, wherein the surface of said valve seat is provided with a hardened layer formed by spraying.

10. A side-mounted high pressure quick opening ball valve as claimed in claim 7 or 9 wherein said hardened layer is coated with a diamond-like coating.

Technical Field

The invention relates to a valve, in particular to a side-mounted high-pressure quick-opening ball valve.

Background

With the rapid development of scientific technology, valves have become one of indispensable control devices in industrial equipment. Especially, the high-pressure quick-opening ball valve is used as a valve for working conditions with high pressure (medium pressure is more than 40 MPa), high-frequency on-off and extremely high requirements on medium cutoff speed, and the difficulty of the quick-opening ball valve is far greater than that of a common ball valve. The original driver connecting disc 18, the original gland 17 and the original valve body 16 of the common high-pressure switch ball valve (see figure 4) are connected by a first screw 19 and a second screw 20, the driver is connected with the original driver connecting disc 18 by bolts, the first screw 19 and the second screw 20 are easy to be cut short and fail under the impact of the switching moment of a large-torque actuator, and the valve rod is easy to be pressed and sprayed.

Disclosure of Invention

The invention aims to provide a side-mounted high-pressure quick-opening ball valve which can avoid valve body failure caused by impact of a large-torque actuator.

In order to realize above-mentioned purpose, the technical scheme that this application adopted is a ball valve is opened fast to side dress high pressure, includes: a valve body, a valve rod and a ball body;

the wall of the valve body is provided with an outer hole for inserting the valve rod and a fixed channel for material circulation;

the valve rod extends into the inner cavity of the valve body through the outer hole, and the outer hole of the valve body is matched with the valve rod;

the ball body is arranged in the inner cavity of the valve body and is connected with the valve rod;

the valve body is provided with an actuator coupling disc used for being connected with an actuator, the actuator coupling disc is provided with a through hole corresponding to the outer hole, and one end of the valve rod sequentially penetrates through the through hole and the outer hole to extend into the inner cavity of the valve body to be connected with the ball body; wherein the actuator coupling disk is welded to the valve body.

Furthermore, an inner hole which is used for being in butt joint with one end of the valve rod is formed in the ball body, a tooth-shaped groove which extends along the axis of the inner hole is arranged on the hole wall of the inner hole, and gear shaping which is matched with the tooth-shaped groove is arranged on the part, matched with the inner hole, of the valve rod.

The fit clearance of the gear shaping teeth and the tooth-shaped grooves can ensure that the valve rod does not bear bending stress when the ball body deforms slightly.

Furthermore, bearings which are abutted against the ball body and the inner wall of the inner cavity of the valve body are arranged on two sides of the ball body in the axial direction of the outer hole. Therefore, the ball has larger bearing capacity, and can rotate smoothly around the valve rod.

The valve rod is provided with a flange extending outwards, a sealing ring limited between the valve rod and the actuator coupling disc is arranged on one side of the flange facing the actuator coupling disc, one end of the sealing ring is abutted against one side of the flange, and the other end of the sealing ring is abutted against one part of the through hole of the actuator coupling disc.

Specifically, the inner wall of a through hole of the actuator connecting disc is provided with a clamping groove, a fixed clamping ring is arranged in the clamping groove, and one side of the fixed clamping ring is abutted against one end, away from the flange, of the sealing ring.

Specifically, a gland positioned in the actuator coupling disc is arranged on the actuator coupling disc, and one end, facing the sealing ring, of the gland is abutted against one side, away from the flange, of the fixed snap ring.

Further, the part of the gland in contact with the valve rod and the part of the valve body in contact with the valve rod are both provided with bearings.

Further, the surface of the sphere is provided with a hardened layer formed by spraying.

Further, a valve seat is arranged between the ball body and the inner wall of the valve body in the direction along the fixed passage.

Further, the surface of the valve seat is provided with a hardened layer formed by spraying.

Further, a diamond-like coating layer is arranged outside the hardening layer.

The special processing mode of the ball and the valve seat greatly reduces the valve torque, thereby reducing the output torque of the actuator.

The invention has the beneficial effects that:

through adopting this side dress high pressure to open ball valve fast, avoided adopting the bolt to receive the unstable condition that the shearing caused destruction easily, promoted the fail safe nature that the valve used.

The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the invention and their equivalents and not limit it unduly. In the drawings:

FIG. 1 is a schematic view of a side-mounted high pressure quick opening ball valve used to illustrate the present invention;

FIG. 2 is a schematic view for explaining a conventional ball and stem coupling;

FIG. 3 is a schematic diagram of the progressive coupling of the ball and valve stem used to illustrate the present invention;

FIG. 4 is a schematic view for explaining a bolt coupling of a conventional coupling plate and a valve body;

FIG. 5 is a schematic view of the actuator coupling disk and valve body weld illustrating the present invention;

labeled as: 1-main valve body, 2-side valve body, 3-ball, 310-inner hole, 311-tooth-shaped groove, 4-valve rod, 410-gear shaping, 5-valve seat, 6-first bearing, 7-actuator coupling disc, 710-perforation, 8-sealing gasket, 9-sealing ring, 10-fixing snap ring, 11-gland, 12-third bearing, 13-second bearing, 14-original ball, 15-original valve rod, 16-original valve body, 17-original gland, 18-original driver coupling disc, 19-first screw and 20-second screw.

Detailed Description

The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:

the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.

Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

With respect to terms and units in the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.

Referring to fig. 1 to 4, a side-mounted high-pressure quick-opening ball valve includes: the main valve body 1, the valve rod 4 and the sphere 3; the opening and closing of the passage in the main valve body 1 is controlled by the control valve rod 4. The side valve body 2 is arranged at one end of the main valve body 1 in the channel direction, the ball 3 is placed in the main valve body 1 during installation, the side valve body 2 is in butt joint with the main valve body 1, and a gap between the side valve body 2 and the main valve body 1 is sealed by a sealing gasket 8.

The wall of the main valve body 1 is provided with an outer hole 110 for inserting the valve rod 4 and a fixed passage 120 for material circulation;

the valve rod 4 extends into the inner cavity of the main valve body 1 through the outer hole 110, the outer hole 110 of the main valve body 1 is matched with the valve rod 4, and the matching is that the valve rod 4 can be limited and fixed by the inner wall of the outer hole 110 of the main valve body 1 after the valve rod 4 extends into the main valve body 1.

The sphere 3 is arranged in the inner cavity of the main valve body 1 and connected with the valve rod 4, the control valve rod 4 rotates the sphere 3, the sphere 3 is also provided with a movable passage which corresponds to and is communicated with the fixed passage 120, and the movable passage is controlled to be in butt joint with and disconnected from the fixed passage 120 so as to realize the opening and closing of the valve.

An actuator coupling disc 7 used for being connected with an actuator is arranged on the main valve body 1, a through hole 710 corresponding to the outer hole 110 is arranged on the actuator coupling disc 7, and one end of the valve rod 4 sequentially penetrates through the through hole 710 and the outer hole 110 to extend into the inner cavity of the main valve body 1 to be connected with the ball 3; an actuator coupling disk 7 is welded to the main valve body 1.

The actuator disk 7 can be arranged preferably on the side facing the main valve body 1 from the inside to the outside, the gap between the actuator disk 7 and the main valve body 1 becoming progressively larger, so that the weld seam formed in this way facilitates the welding operation and also makes the welding more robust and sufficient.

An inner hole 310 used for being in butt joint with one end of the valve rod 4 is formed in the ball body 3, a toothed groove 311 extending along the axis of the inner hole 310 is arranged on the wall of the inner hole 310, and gear shaping 410 matched with the toothed groove 311 is arranged on the part, matched with the inner hole 310, of the valve rod 4.

Due to the traditional flat square connection mode of the ball rod (see fig. 2), after a plurality of times of large-torque switch actions, the joint part of the original valve rod 15 and the flat square on the original ball body 14 is subjected to plastic deformation, and the deformation is intensified in the long term, so that the ball body 3 cannot be switched in place, and leakage is caused.

The tooth-shaped groove 311 and the gear shaping 410 are adopted in the structure, the connecting part of the ball body 3 and the valve rod 4 is more stable when transmitting large moment, the plastic deformation of the connecting part caused by large-torque instant impact can not occur, and the valve rod 4 can not bear bending stress when the ball body 3 is slightly deformed due to the matching clearance of the gear shaping 410 and the tooth-shaped groove 311.

In the axial direction along the outer hole 110, first bearings 6 abutting against the ball 3 and the inner wall of the inner cavity of the main valve body 1 are disposed on both sides of the ball 3. In the fixing mode of the ball 3 in the prior art, in order to improve the bearing rigidity of the ball 3, a fixing mode of an upper pivot and a lower pivot is generally adopted for the high-pressure ball valve, and the valve rod 4 bears thrust to enable the valve rod 4 to generate flexural deformation, so that the bearing of the valve rod 4 is seriously abraded. Adopt this structure to set up first bearing 6 between spheroid 3 and the main valve body 1 inner chamber inner wall promptly so that spheroid 3 can have better location, spacing in main valve body 1, has bigger bearing capacity, and the rotation that the guarantee spheroid 3 can be around valve rod 4 simultaneously.

The valve rod 4 is provided with a flange extending outward, the side of the flange facing the actuator coupling disk 7 is provided with a sealing ring 9 limited between the valve rod 4 and the actuator coupling disk 7, one end of the sealing ring 9 abuts against one side of the flange, and the other end of the sealing ring 9 abuts against a part of the through hole 710 of the actuator coupling disk 7.

The inner wall of the through hole 710 of the actuator coupling disk 7 is provided with a clamping groove, a fixed clamping ring 10 is arranged in the clamping groove, and one side of the fixed clamping ring 10 is abutted against one end of the sealing ring 9 departing from the flange.

The actuator coupling disc 7 is provided with a gland 11 positioned in the actuator coupling disc 7, and one end of the gland 11 facing the sealing ring 9 is abutted against one side of the fixing snap ring departing from the flange. The structure transmits the thrust of the valve rod 4 and has no bearing bolt.

The portion of the gland 11 in contact with the stem 4 and the portion of the main valve body 1 in contact with the stem 4 are provided with a second bearing 13 and a third bearing 12, respectively. This arrangement ensures the centring of the valve stem 4. The surface of the spherical body 3 is provided with a hardened layer formed by spraying.

In the direction of the fixed passage 120, a valve seat 5 is arranged between the ball 3 and the inner wall of the main valve body 1. The surface of the valve seat 5 is provided with a hardened layer formed by spraying.

The diamond-like coating layer is arranged outside the hardening layer. The special processing mode of the ball 3 and the valve seat 5 greatly reduces the valve torque, thereby reducing the output torque of the actuator.

Through adopting this side dress high pressure to open ball valve fast, avoided adopting the bolt to receive the unstable condition that the shearing caused destruction easily, promoted the fail safe nature that the valve used.