CN212004364U

CN212004364U - High-temperature hard-sealing fixed ball valve with novel structure

Info

Publication number: CN212004364U
Application number: CN202020587345.2U
Authority: CN
Inventors: 方品田; 焦伦龄; 郝文明; 吴晓刚
Original assignee: Fangzheng Valve Group Yongjia Technology Co ltd
Current assignee: Fangzheng Valve Group Yongjia Technology Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-24
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a novel high temperature of structure seals fixed ball valve firmly, include the valve body, set up in the inside mounting groove of valve body and set up in the disk seat of mounting groove, install on the valve body and wear to establish the inside valve rod of valve body, the valve rod is located the inside one end of valve body and is equipped with the cooperation disk seat and forms sealed spheroid, be equipped with multiple seal assembly between disk seat and the mounting groove, work as when the disk seat supports in multiple seal assembly mutually, be formed with between disk seat and the mounting groove and supply the disk seat to carry out the extruded removal clearance towards the spheroid motion or to multiple seal assembly, multiple seal assembly includes a plurality of sealing washer and a plurality of becket. The utility model has the advantages of it is following and effect: the utility model discloses the moment of torsion is little, the leakproofness is good and long service life.

Description

High-temperature hard-sealing fixed ball valve with novel structure

Technical Field

The utility model relates to a valve, in particular to high temperature hard seal fixed ball valve of novel structure.

Background

As is well known, a valve is one of indispensable industrial pipeline accessories and equipment in national economy, various pipelines are needed to convey various media in both factories and mines, pipelines of various water, air, oil products, natural gas, chemical raw materials and other corrosive media in steel plants, oil refineries, power plants, chemical plants, oil fields and oil gas, newly developed nuclear power and the like can not be opened, and the valve is a device for controlling the direction, pressure and flow of fluid in a fluid system and has the functions of diversion, cut-off, throttling, non-return, diversion, overflow pressure relief and the like. However, working conditions such as high-temperature wear resistance, flammability, explosiveness, toxicity, strong corrosion and the like have higher requirements on the valve, and the valve seat with the novel high-temperature structure and the valve adopting the novel special fixed treatment process can well meet the requirements.

The valve seat in the high-temperature valve applied in the prior practice mostly adopts a fixed installation mode and hard sealing is adopted between the valve seat and the ball body, so that the high-temperature use working condition is met. However, the material will expand with heat and contract with cold at high temperature, so that the torque of the existing valve is increased and the jamming is serious under the high-temperature working environment, and the matching abrasion between the parts is serious, thereby reducing the service life of the valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high temperature of novel structure seals fixed ball valve firmly, this high temperature of novel structure seals fixed ball valve moment of torsion is little, the leakproofness is good and long service life firmly.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a high temperature of novel structure seals fixed ball valve firmly, includes the valve body, sets up in the inside mounting groove of valve body and sets up in the disk seat of mounting groove, install on the valve body and wear to establish the inside valve rod of valve body, the valve rod is located the inside one end of valve body and is equipped with the cooperation disk seat and forms sealed spheroid, be equipped with multiple seal assembly between disk seat and the mounting groove, work as the disk seat supports when multiple seal assembly mutually, be formed with between disk seat and the mounting groove and supply the disk seat to carry out extruded removal clearance towards the motion of spheroid or to multiple seal assembly, multiple seal assembly includes a plurality of sealing washer and a plurality of becket.

Further setting the following steps: the sealing rings and the metal rings are arranged in a staggered mode along the movement direction of the valve seat, and the sealing rings are made of flexible graphite.

Further setting the following steps: the multiple seal assembly also includes a wave spring to drive the valve seat toward the ball.

Further setting the following steps: the quantity of sealing washer be five and be first sealing washer, second sealing washer, third sealing washer, fourth sealing washer and fifth sealing washer in proper order, the quantity of becket be three and be first becket, second becket and third becket in proper order, multiple seal assembly is first sealing washer, second sealing washer, first becket, third sealing washer, second becket, wave spring, third becket, fourth sealing washer and fifth sealing washer in proper order along the range order of disk seat spheroid one side dorsad.

Further setting the following steps: the valve seat comprises a main body part arranged in the mounting groove and a sealing bulge part which is arranged on the main body part and protrudes outwards to form sealing fit with the ball body.

Further setting the following steps: the valve body is characterized in that a positioning shaft which penetrates through the ball body and is in running fit with the ball body is arranged on one side, back to the valve rod, of the ball body in the valve body, the positioning shaft and the valve rod are coaxially arranged, and shaft sleeves are sleeved between the valve rod and the valve body and between the ball body and the positioning shaft.

Further setting the following steps: the valve body comprises a middle body, a left body, a right body and a middle cover, wherein the left body and the right body are respectively arranged on two opposite sides of the middle body, the middle cover is arranged above the middle body, sealing gaskets are respectively arranged between the left body and the middle body and between the middle body and the right body, and water line grooves are respectively arranged at the positions where the middle body, the left body and the right body abut against the sealing gaskets.

Further setting the following steps: and a plurality of radiating fins are arranged outside the middle cover.

To sum up, the utility model discloses following beneficial effect has: the multiple sealing components with the multilayer combined sealing structure are adopted to ensure the sealing performance between the valve seat and the valve body, and the deformation compensation capacity of the valve seat under the high-temperature working condition is improved through the moving gap, so that the phenomena of blocking and excessive abrasion cannot occur between the valve seat and the ball body, the sealing performance and the service life of the valve are improved, and the torque of the valve is reduced.

The setting of wave spring can drive the disk seat and support tight seal in the spheroid to further promote the leakproofness of valve, set up second becket and third becket respectively in wave spring's both sides again, make the power that wave spring produced conduct to the sealing washer more even, make the sealing washer can hug closely in valve member, thereby reach better sealed. And the rest metal rings can support the sealing ring, so that stable sealing of the sealing ring is ensured.

The setting of sealed bellying has increased the elasticity of disk seat under the high temperature operating mode, makes its deformation that compensates that can be better to reach better sealed effect. The setting of axle sleeve is used for reducing frictional resistance, has reduced the moment of torsion of valve, has promoted the life of valve. The arrangement of the water line groove increases the contact surface between the water line groove and the sealing gasket, improves the sealing effect and prevents leakage. The arrangement of the radiating fins reduces the temperature on the middle cover, so that the sealing performance of the filler on the middle cover is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

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

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1. a valve body; 1.1, midbody; 1.2, left body; 1.3, right body; 1.4, a middle cover; 2. mounting grooves; 3. a valve seat; 31. a main body portion; 32. a sealing boss; 4. a valve stem; 5. a sphere; 6. a multiple seal assembly; 61. a first seal ring; 62. a second seal ring; 63. a third seal ring; 64. a fourth seal ring; 65. a fifth seal ring; 66. a first metal ring; 67. a second metal ring; 68. a third metal ring; 7. a wave spring; 8. positioning the shaft; 9. a shaft sleeve; 10. a gasket; 11. a water line groove; 12. a heat sink; 13. the gap is moved.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, a high-temperature hard-sealing fixed ball valve with a novel structure includes a valve body 1, the valve body 1 includes a middle body 1.1, a left body 1.2, a right body 1.3 and a middle cover 1.4, the left body 1.2 and the right body 1.3 are respectively disposed on two opposite sides of the middle body 1.1, and the middle cover 1.4 is fixedly disposed above the middle body 1.1. The left body 1.2 is fixedly connected with the middle body 1.1, the right body 1.3 is fixedly connected with the middle body 1.1, sealing gaskets 10 are respectively arranged between the left body 1.2 and the middle body 1.1 and between the middle body 1.1 and the right body 1.3, and water line grooves 11 are respectively arranged at the positions of the middle body 1.1, the left body 1.2 and the right body 1.3, which are abutted against the sealing gaskets 10.

The valve rod 4 penetrating into the middle body 1.1 is installed on the middle cover 1.4, the ball body 5 is installed at one end, located inside the middle body 1.1, of the valve rod 4, a plurality of radiating fins 12 are integrally arranged on the middle cover 1.4, and the plurality of radiating fins 12 are arranged at intervals along the axial direction of the valve rod 4. The left body 1.2 and the right body 1.3 are both provided with a mounting groove 2, and a matching ball body 5 is mounted in the mounting groove 2 to form a sealed valve seat 3. Be equipped with multiple seal assembly 6 between valve seat 3 and the mounting groove 2, when valve seat 3 offseted in multiple seal assembly 6, be formed with between valve seat 3 and the mounting groove 2 and supply valve seat 3 to move towards spheroid 5 or carry out the extruded removal clearance 13 to multiple seal assembly 6.

The multiple sealing assembly 6 comprises a plurality of sealing rings, a plurality of metal rings and a wave spring 7 for driving the valve seat 3 to move towards the ball body 5, the wave spring 7, the sealing rings and the metal rings are arranged in a staggered mode along the movement direction of the valve seat 3, and the sealing rings are made of flexible graphite. The number of the sealing rings is five, the first sealing ring 61, the second sealing ring 62, the third sealing ring 63, the fourth sealing ring 64 and the fifth sealing ring 65 are arranged in sequence, the number of the metal rings is three, the first metal ring 66, the second metal ring 67 and the third metal ring 68 are arranged in sequence, and the first sealing ring 61, the second sealing ring 62, the first metal ring 66, the third sealing ring 63, the second metal ring 67, the wave spring 7, the third metal ring 68, the fourth sealing ring 64 and the fifth sealing ring 65 are arranged in sequence along the side, opposite to the sphere 5, of the multiple sealing assembly 6.

The valve seat 3 comprises a main body part 31 installed in the installation groove 2 and a sealing bulge part 32 which is arranged on the main body part 31 and protrudes outwards to form sealing fit with the ball 5, and the sealing bulge part 32 and the main body part 31 are integrally arranged. One side that lies in spheroid 5 back to valve rod 4 in the valve body 1 is equipped with and wears to establish into spheroid 5 and becomes normal running fit's location axle 8 with it, and location axle 8 and the coaxial setting of valve rod 4 all overlap between valve rod 4 and the well body 1.1, between spheroid 5 and the location axle 8 and be equipped with axle sleeve 9.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high temperature of novel structure seals fixed ball valve firmly, includes valve body (1), sets up in inside mounting groove (2) of valve body (1) and sets up in disk seat (3) of mounting groove (2), install on valve body (1) and wear to establish into inside valve rod (4) of valve body (1), valve rod (4) are located the inside one end of valve body (1) and are equipped with cooperation disk seat (3) and form sealed spheroid (5), its characterized in that: be equipped with multiple seal assembly (6) between disk seat (3) and mounting groove (2), work as disk seat (3) offset when multiple seal assembly (6), be formed with between disk seat (3) and mounting groove (2) and supply disk seat (3) to move towards spheroid (5) or carry out extruded removal clearance (13) to multiple seal assembly (6), multiple seal assembly (6) include a plurality of sealing washer and a plurality of becket.

2. The high-temperature hard-seal fixed ball valve with the novel structure as claimed in claim 1, is characterized in that: the sealing rings and the metal rings are arranged in a staggered mode along the movement direction of the valve seat (3), and the sealing rings are made of flexible graphite.

3. The high-temperature hard-seal fixed ball valve with the novel structure as claimed in claim 2, is characterized in that: the multiple seal assembly (6) further comprises a wave spring (7) to drive the valve seat (3) towards the ball (5).

4. The high-temperature hard-seal fixed ball valve in the novel structure as claimed in claim 3, is characterized in that: the quantity of sealing washer be five and be first sealing washer (61), second sealing washer (62), third sealing washer (63), fourth sealing washer (64) and fifth sealing washer (65) in proper order, the quantity of becket be three and be first becket (66), second becket (67) and third becket (68) in proper order, multiple seal assembly (6) are first sealing washer (61), second sealing washer (62), first becket (66), third sealing washer (63), second becket (67), wave spring (7), third becket (68), fourth sealing washer (64) and fifth sealing washer (65) in proper order along the range order of disk seat (3) dorsad spheroid (5) one side.

5. The high-temperature hard-seal fixed ball valve with the novel structure as claimed in claim 1, is characterized in that: the valve seat (3) comprises a main body part (31) arranged in the mounting groove (2) and a sealing bulge part (32) which is arranged on the main body part (31) and protrudes outwards to form sealing fit with the ball body (5).

6. The high-temperature hard-seal fixed ball valve with the novel structure as claimed in claim 1, is characterized in that: one side that lies in spheroid (5) back to valve rod (4) in valve body (1) is equipped with wears to establish spheroid (5) and becomes normal running fit's location axle (8) with it, location axle (8) and the coaxial setting of valve rod (4), all overlap between valve rod (4) and valve body (1), between spheroid (5) and location axle (8) and be equipped with axle sleeve (9).

7. The high-temperature hard-seal fixed ball valve with the novel structure as claimed in claim 1, is characterized in that: the valve body (1) comprises a middle body (1.1), a left body (1.2), a right body (1.3) and a middle cover (1.4), the left body (1.2) and the right body (1.3) are respectively arranged on two opposite sides of the middle body (1.1), the middle cover (1.4) is arranged above the middle body (1.1), a sealing gasket (10) is arranged between the left body (1.2) and the middle body (1.1) and between the middle body (1.1) and the right body (1.3), and a water line groove (11) is arranged at the position where the middle body (1.1), the left body (1.2) and the right body (1.3) are abutted against the sealing gasket (10).

8. The high-temperature hard-seal fixed ball valve in the novel structure as claimed in claim 7, is characterized in that: and a plurality of radiating fins (12) are arranged outside the middle cover (1.4).