阅读说明：本技术 一种防卡死笼式球阀 (Cage type ball valve capable of preventing jamming ) 是由 徐胜明 于 2021-10-14 设计创作，主要内容包括：本发明公开了一种防卡死笼式球阀,包括可拆卸连接的侧阀体和主阀体,所述主阀体具有阀腔且阀腔内设置有阀座,所述阀座上转动设置有球体,所述阀座与主阀体之间设置有防卡套,所述防卡套上开设有多个孔洞且多个孔洞等间隔分布,所述防卡套与主阀体之间设置有预紧弹簧,能够在球阀应用于含固体颗粒介质、多相复杂介质的环境时解决卡涩、堵塞等问题,有效提高球阀的使用寿命。(The invention discloses an anti-jamming cage type ball valve which comprises a side valve body and a main valve body which are detachably connected, wherein the main valve body is provided with a valve cavity, a valve seat is arranged in the valve cavity, a ball body is arranged on the valve seat in a rotating mode, an anti-jamming sleeve is arranged between the valve seat and the main valve body, a plurality of holes are formed in the anti-jamming sleeve and distributed at equal intervals, a pre-tightening spring is arranged between the anti-jamming sleeve and the main valve body, the problems of jamming, blocking and the like can be solved when the ball valve is applied to an environment containing solid particle media and multi-phase complex media, and the service life of the ball valve is effectively prolonged.)

1. The utility model provides an anti-sticking dead cage ball valve, is including dismantling the side valve body (1) and the main valve body (2) of connection, main valve body (2) have the valve pocket and the valve pocket in be provided with disk seat (7), it is provided with spheroid (8), its characterized in that to rotate on disk seat (7): be provided with between disk seat (7) and the main valve body (2) prevent cutting ferrule (6), set up a plurality of holes and a plurality of holes equidistant distribution on preventing cutting ferrule (6), prevent being provided with pretension spring (5) between cutting ferrule (6) and the main valve body (2).

2. The anti-seize cage ball valve of claim 1, wherein: the ball body (8) is connected with the valve rod (9), and a driving handle is arranged at the free end of the valve rod (9).

3. The anti-seize cage ball valve of claim 2, wherein: the valve rod (9) is fixed on the main valve body (2) through a hollow pressure cap, and a sealing packing (10) is arranged between the hollow pressure cap and the main valve body (2).

4. An anti-seize cage ball valve as defined in claim 3, wherein: the valve rod (9) is provided with an annular groove, and a sealing ring (11) which is abutted against the inner wall of the main valve body (2) is arranged in the annular groove.

5. The anti-seize cage ball valve of claim 1, wherein: and a metal sealing ring (4) is arranged between the side valve body (1) and the main valve body (2).

6. The anti-seize cage ball valve of claim 5, wherein: the side valve body (1) is in threaded connection with the main valve body (2) through a bolt (3).

7. The anti-seize cage ball valve of claim 1, wherein: one end of the side valve body (1) is located in the valve cavity, a sealing gasket (12) is arranged on the side valve body (1) in the valve cavity, and the sealing gasket (12) is connected with the adjacent valve seat (7).

Technical Field

The invention relates to the technical field of ball valves, in particular to an anti-blocking cage type ball valve.

Background

With the development of economy, various valves are increasingly applied to various devices such as petroleum, chemical industry, electric power, steel, natural gas, coal chemical industry, polycrystalline silicon and the like. In high-solid working conditions such as coal chemical industry, materials are easy to accumulate in the middle cavity of the gate valve, the gate plate which moves linearly cannot be closed tightly and is easy to strain and damage, and therefore the proportion of the ball valve used in recent years is getting larger. The biggest advantage of ball valve is exactly that the flow resistance is extremely low, and loss of pressure is very little, and energy saving is an environment-friendly type product to the ball valve is 90 corner switches, and sealed hardening processing, artifical the grinding of adopting, sealing performance are better, and have certain wear-resisting and strike off the function to the material, and the result of use is better than the gate valve.

However, the hard seal ball valve needs the disc spring to establish initial specific pressure when being tightly sealed, when the ball valve is in an environment containing solid particle media and multi-phase complex media, particles in the media are gradually accumulated on the back of the disc spring, and after gaps generated by deformation of the disc spring are gradually filled, the disc spring cannot reset and loses the inherent elastic compensation to be in a blocking state, so that the friction force between a ball body and a valve seat is increased but not reduced and is increased, the ball valve starts to generate a blocking phenomenon until an actuator cannot drive the ball valve, the ball valve is forced to be offline for maintenance, and the operation of a production device is further influenced.

The existing common solution is to use a floating ball valve, but the large-caliber high-pressure floating ball valve has large operating torque and poor economy, and the scheme is to adopt a protective measure at a pre-tightening disc spring part to prevent a medium from entering, but the effect is not good due to the existence of pressure.

Accordingly, the present invention is directed to an anti-seize cage ball valve that solves the above problems.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide the anti-blocking cage type ball valve which can solve the problems of blocking, blockage and the like when the ball valve is applied to the environment containing solid particle media and multi-phase complex media and effectively prolong the service life of the ball valve.

In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides an anti-sticking dead cage ball valve, is including dismantling the side valve body and the main valve body of connection, the main valve body has and is provided with the disk seat in valve pocket and the valve pocket, it is provided with the spheroid to rotate on the disk seat, be provided with the anti-sticking cover between the disk seat and the main valve body, set up a plurality of holes and a plurality of holes equal interval distribution on the anti-sticking cover, be provided with pretension spring between the anti-sticking cover and the main valve body.

Further, the ball body is connected with a valve rod, and a driving handle is arranged at the free end of the valve rod.

Further, the valve rod is fixed on the main valve body through a hollow pressure cap, and sealing packing is arranged between the hollow pressure cap and the main valve body.

Furthermore, an annular groove is formed in the valve rod, and a sealing ring which is abutted against the inner wall of the main valve body is arranged in the annular groove.

Further, a metal sealing ring is arranged between the side valve body and the main valve body.

Further, the side valve body and the main valve body are in threaded connection through bolts.

Furthermore, one end of the side valve body is located in the valve cavity, a sealing gasket is arranged on the side valve body located in the valve cavity, and the sealing gasket is connected with the adjacent valve seat.

Compared with the prior art, the invention has the beneficial effects that: the invention provides an improvement of an anti-jamming internal structure for a hard sealing ball valve, the improved ball valve keeps the same main structure as a common hard sealing ball valve, the processing technology and the hardening requirement difficulty do not need to be further improved, the cost cannot be obviously increased, an anti-jamming sleeve is mainly arranged between a valve seat and a pre-tightening disc spring, through the punching design of the anti-jamming sleeve in equal interval distribution, the back of the pre-tightening disc spring is convenient to discharge deposited particles, the ball valve can be used under the particle working condition, and the service life of the ball valve is effectively prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural diagram of the anti-blocking sleeve.

In the figure:

1-side valve body; 2-main valve body; 3-a bolt; 4-a metal seal ring; 5-pre-tightening the spring; 6-preventing the ferrule; 7-valve seat; 8-sphere; 9-a valve stem; 10-sealing packing; 11-a sealing ring; 12-sealing gasket.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Referring to the attached drawings 1-3, an anti-blocking cage type ball valve comprises a side valve body 1 and a main valve body 2 which are detachably connected through a bolt 3, the side valve body 1 and the main valve body 2 are convenient to replace due to the detachable connection, a metal sealing ring 4 is arranged between the side valve body 1 and the main valve body 2, a complete pressure boundary is formed between the side valve body 1 and the main valve body 2, when the bolt 3 is screwed, the interference force between the side valve body 1 and the main valve body 2 is increased, namely the extrusion force of the side valve body 1 and the main valve body 2 on the metal sealing ring 4 is increased, and the sealing effect is gradually enhanced;

the main valve body 2 is provided with a valve cavity, a valve seat 7 is arranged in the valve cavity, one end of the side valve body 1 is positioned in the valve cavity, a sealing gasket 12 is arranged on the side valve body 1 positioned in the valve cavity, the sealing gasket 12 is connected with the adjacent valve seat 7, a ball 8 is rotatably arranged on the valve seat 7, a clamping prevention sleeve 6 is arranged between the valve seat 7 and the main valve body 2, a pre-tightening spring 5 is arranged between the clamping prevention sleeve 6 and the main valve body 2, two ends of the pre-tightening spring 5 are respectively abutted against the clamping prevention sleeve 6 and the main valve body 2, the pre-tightening disc spring 5 abuts against the clamping prevention sleeve 6 to push the valve seat 7 to the ball 8, so that sealing force is transmitted to the valve seat 7 to form initial specific pressure, sealing on the front side of the valve seat 7 is ensured, a plurality of holes are formed in the clamping prevention sleeve 6 and are distributed at equal intervals, deposited particles on the back side of the pre-tightening spring 5 can be effectively eliminated, and the side valve body is ensured not to lose efficacy after being used for a long time;

spheroid 8 is connected with valve rod 9, be provided with the actuating handle on the free end of valve rod 9, valve rod 9 presses the cap to be fixed in on the main valve body 2 through the cavity, the cavity is pressed and is equipped with sealing filler 10 between cap and the main valve body 2, the cavity is pressed the cap and is convenient for valve rod 9's fixed, increase valve rod 9's stability, when the cap is pressed to the cavity and screws, the cavity is pressed the cap and is extrudeed sealing filler 10, increase the cavity and press the sealed effect between cap and the main valve body 2, be equipped with the ring channel on the valve rod 9, be equipped with the sealing washer 11 of contradicting with the 2 inner walls of the main valve body in the ring channel, the ring channel plays fixed effect to sealing washer 11, sealing washer 11 can further increase the sealed effect between valve rod 9 and the main valve body 2.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.