CN212004363U - High-temperature floating ball valve with carbon graphite valve seat material structure - Google Patents

High-temperature floating ball valve with carbon graphite valve seat material structure Download PDF

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Publication number
CN212004363U
CN212004363U CN202020587319.XU CN202020587319U CN212004363U CN 212004363 U CN212004363 U CN 212004363U CN 202020587319 U CN202020587319 U CN 202020587319U CN 212004363 U CN212004363 U CN 212004363U
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China
Prior art keywords
valve
mounting groove
upper reaches
disk seat
carbon graphite
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CN202020587319.XU
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Chinese (zh)
Inventor
焦伦龄
方品田
郝文明
吴钊
吴晓刚
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Fangzheng Valve Group Yongjia Technology Co ltd
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Fangzheng Valve Group Yongjia Technology Co ltd
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Abstract

The utility model discloses a carbon graphite disk seat material structure high temperature ball valve that floats, which comprises a valve body, the valve rod, the spheroid and set up in inside upper reaches mounting groove and the low reaches mounting groove of valve body, be equipped with the upper reaches disk seat in the upper reaches mounting groove, be equipped with the low reaches disk seat in the low reaches mounting groove, the upper reaches disk seat all includes carbon graphite with the material of low reaches disk seat, the upper reaches disk seat slides towards the reciprocal seal of spheroid and sets up in the upper reaches mounting groove, be formed with the floating clearance that supplies the upper reaches disk seat sliding motion between upper reaches mounting groove and the upper reaches disk seat, be equipped with between upper reaches mounting groove and the upper reaches disk seat and drive the upper reaches disk seat and support tightly sealed. The utility model has the advantages of it is following and effect: the utility model discloses it is low, processing production cycle is short, processing and installation are easy relatively, with low costs to have that high temperature sealing performance is reliable, the valve is opened and close the moment of torsion.

Description

High-temperature floating ball valve with carbon graphite valve seat material structure
Technical Field
The utility model relates to a valve, in particular to carbon graphite disk seat material structure high temperature ball valve that floats.
Background
It is well known that valves are one of the indispensable industrial plumbing accessories and equipment in the national economy, both in factories and mines, requiring the use of various pipes to convey various media. For example: steel plants, oil refineries, power plants, chemical plants, oil fields, oil and gas, etc. all require a plurality of pipelines for conveying water, air, oil products, natural gas, chemical raw materials, other corrosive media, etc., and newly developed nuclear power, etc. can not be opened. The valve is a device used for controlling the direction, pressure and flow of fluid in a fluid system, and has the functions of diversion, cut-off, throttling, check, diversion, overflow, pressure relief and the like. However, the working conditions of large caliber, high pressure, flammability, explosiveness, strong corrosion and the like put higher requirements on the valve.
In the existing practical application, different valve seat materials are usually adopted for the high-temperature ball valve according to different temperatures. A PEEK valve seat structure is adopted under the working condition that the temperature of a working condition medium is not higher than 200 ℃, and a metal-to-metal hard sealing structure is adopted for the ball valve with higher service temperature. At present, the high-temperature ball valve with a hard sealing structure has long production period, complex structure and process, high production cost and complex maintenance and installation; and the selection cost of the actuator is increased due to the larger opening and closing torque of the hard sealing structure valve. In order to solve the problems in the prior art, the invention is inoculated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carbon graphite disk seat material structure high temperature ball valve that floats, this carbon graphite disk seat material structure high temperature ball valve high temperature sealing performance is reliable, the moment of torsion is low, processing production cycle is short, processing and installation are easy relatively, with low costs to the valve is opened and close.
The above technical purpose of the present invention can be achieved by the following technical solutions: a high-temperature floating ball valve with a carbon graphite valve seat material structure comprises a valve body, an upstream installation groove and a downstream installation groove which are arranged in the valve body, the valve body is provided with a valve rod which is arranged in the valve body in a penetrating way, one end of the valve rod, which is positioned in the valve body, is provided with a ball body, an upstream valve seat which is matched with the ball body to form a seal is arranged in the upstream mounting groove, a downstream valve seat which is matched with the ball body to form a seal is arranged in the downstream mounting groove, the materials of the upstream valve seat and the downstream valve seat both comprise carbon graphite, the upstream valve seat is arranged in the upstream installation groove towards the ball in a reciprocating sealing sliding manner, a floating gap for the sliding movement of the upstream valve seat is formed between the upstream mounting groove and the upstream valve seat, a disc spring for driving the upstream valve seat to tightly abut against and seal the ball body is arranged between the upstream mounting groove and the upstream valve seat, and a positioning component for positioning the downstream valve seat is arranged between the downstream valve seat and the downstream mounting groove.
Through adopting above-mentioned technical scheme, because carbon graphite material itself has high temperature resistant, coefficient of friction is little and the function of self-lubricating, sets carbon graphite material to through the upper reaches disk seat that will seal with the spheroid cooperation with low reaches disk seat for this valve also can realize stable sealed in high temperature operating mode, makes its sealing performance more reliable, has also reduced the moment of torsion of valve. The carbon graphite valve seat has the advantages of relatively simple structure, reliable sealing, easy processing and production, and convenient maintenance and installation, thereby reducing the production cost.
The upper valve seat is driven by the disc spring to be tightly abutted and sealed on the ball body, so that the sealing performance of the valve is ensured, and the floating gap is arranged to compensate the expansion coefficient of the valve seat at high temperature, so that the valve is not blocked at high temperature, and the torque of the valve at high temperature is also reduced. The setting of locating component realizes accurate location to the low reaches disk seat, reduces the low reaches disk seat and takes place the horizontal hunting when the atress, protects the sealed face of low reaches disk seat. The upstream and downstream valve seats are designed to be asymmetric, so that the valve seats can better adapt to severe working conditions and have more advantages.
Further setting the following steps: the locating component is located the metal framework between low reaches disk seat and the low reaches mounting groove and sets up in the extrusion inclined plane of metal framework periphery wall including the cover, the extrusion inclined plane is extended and is the slope throat setting inwards gradually along the one side of ball back to back.
Through adopting above-mentioned technical scheme, the setting up on extrusion inclined plane enables more convenient installation of metal framework and advances the low reaches mounting groove and make extrusion inclined plane atress take place deformation at the in-process of installation to realize inseparabler cooperation between messenger's metal framework and the low reaches mounting groove, realize more stable fixed to low reaches disk seat.
Further setting the following steps: the upstream valve seat comprises a main body part and a sealing part, wherein the main body part is arranged in the upstream mounting groove in a sliding mode, the sealing part is arranged on the main body part and matched with the ball body to form sealing, the sealing part is made of carbon graphite, the main body part is made of metal, and the main body part and the sealing part are fixed in a sintering mode.
By adopting the technical scheme, the consumption of carbon graphite materials is reduced, and the production cost is reduced; the leakage point of the upstream valve seat can be reduced by sintering, and the durability and the sealing performance of the valve are improved.
Further setting the following steps: and a plurality of radiating fins are distributed on the outer wall of the valve body corresponding to the position of the valve rod.
Through adopting above-mentioned technical scheme, the temperature on the valve rod is reduced in the setting of fin, reduces the deformation of valve rod to guarantee the structural strength of valve rod and make the more smooth and easy rotation of valve rod realization.
Further setting the following steps: and multiple sealing fillers are arranged between the valve body and the valve rod.
Through adopting above-mentioned technical scheme, the leakproofness between valve rod and the valve body is guaranteed in setting up of multiple sealing filler, prevents to leak.
Further setting the following steps: a sealing element is arranged between the main body part and the upstream mounting groove, and when the main body part moves back to the ball body, the main body part extrudes the sealing element.
Through adopting above-mentioned technical scheme, the setting up of sealing member promotes the leakproofness between main part and the upstream mounting groove both, when the main part moves the spheroid back and extrudees the sealing member, can promote the leakproofness between main part and the upstream mounting groove both.
To sum up, the utility model discloses following beneficial effect has: the utility model discloses it is low, processing production cycle is short, processing and installation are easy relatively, with low costs to have that high temperature sealing performance is reliable, the valve is opened and close the moment of torsion.
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; 2. an upstream mounting groove; 3. a downstream mounting groove; 4. a valve stem; 5. a sphere; 6. an upstream valve seat; 61. a main body portion; 62. a sealing part; 7. a downstream valve seat; 8. a floating gap; 9. a disc spring; 10. a positioning member; 101. a metal skeleton; 102. extruding the inclined plane; 11. a heat sink; 12. multiple sealing fillers; 13. and a seal.
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 floating ball valve with a carbon graphite valve seat material structure comprises a valve body 1, and an upstream installation groove 2 and a downstream installation groove 3 which are arranged inside the valve body 1, wherein an upstream valve seat 6 and a downstream valve seat 7 are arranged oppositely and at an interval. Install on the valve body 1 and wear to establish into the inside valve rod 4 of valve body 1, the one end that valve rod 4 is located valve body 1 inside is provided with the spheroid 5 that is located between upstream mounting groove 2 and the downstream mounting groove 3 two. An upstream valve seat 6 which slides towards the ball body 5 in a reciprocating way and is matched with the ball body 5 to form sealing is arranged in the upstream mounting groove 2, and a downstream valve seat 7 which is matched with the ball body 5 to form sealing is arranged in the downstream mounting groove 3. A plurality of radiating fins 11 are fixedly distributed on the outer wall of the valve body 1 corresponding to the position of the valve rod 4, and multiple sealing packing 12 is arranged between the valve body 1 and the valve rod 4.
The upstream valve seat 6 comprises a main body part 61 arranged in the upstream mounting groove 2 in a sliding manner and a sealing part 62 arranged on the main body part 61 and matched with the ball 5 to form a seal, the material of the sealing part 62 is carbon graphite, the material of the main body part 61 is metal, and the main body part 61 and the sealing part 62 are sintered and fixed. When the sealing part 62 abuts against the ball 5, a floating gap 8 for the sliding movement of the main body part 61 is formed between the upstream mounting groove 2 and the main body part 61. A disc spring 9 for driving the upstream valve seat 6 to be tightly pressed against the ball 5 is arranged between the upstream mounting groove 2 and the main body part 61; a seal 13 is provided between the main body 61 and the upstream mounting groove 2, and when the main body 61 moves away from the ball 5, the main body 61 presses the seal 13, and the seal 13 is a gasket.
A positioning component 10 for positioning the downstream valve seat 7 is arranged between the downstream valve seat 7 and the downstream mounting groove 3, the positioning component 10 comprises a metal framework 101 which is sleeved on the downstream valve seat 7 and is positioned between the downstream valve seat 7 and the downstream mounting groove 3, and an extrusion inclined surface 102 which is arranged on the outer peripheral wall of the metal framework 101, and the extrusion inclined surface 102 extends along one side back to the ball body 5 and is gradually and inwardly arranged in an inclined necking manner.
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 (6)

1. The utility model provides a carbon graphite disk seat material structure high temperature ball valve that floats, includes valve body (1) and sets up in inside upper reaches mounting groove (2) and low reaches mounting groove (3) of valve body (1), install on valve body (1) and wear to establish into inside valve rod (4) of valve body (1), the one end that valve rod (4) are located valve body (1) inside is equipped with spheroid (5), be equipped with in upper reaches mounting groove (2) and cooperate spheroid (5) to form sealed upper reaches disk seat (6), be equipped with in low reaches mounting groove (3) and cooperate spheroid (5) to form sealed low reaches disk seat (7), its characterized in that: the material of upper reaches disk seat (6) and low reaches disk seat (7) all includes carbon graphite, upper reaches disk seat (6) are towards spheroid (5) reciprocating seal to slide and are set up in upper reaches mounting groove (2), be formed with between upper reaches mounting groove (2) and upper reaches disk seat (6) and supply floating clearance (8) of upper reaches disk seat (6) gliding movement, be equipped with between upper reaches mounting groove (2) and upper reaches disk seat (6) drive upper reaches disk seat (6) and support tight seal in disk spring (9) of spheroid (5), be equipped with between low reaches disk seat (7) and low reaches mounting groove (3) and be used for fixing a position locating member (10) of low reaches disk seat (7).
2. The carbon graphite valve seat material structure high-temperature floating ball valve as claimed in claim 1, wherein: the locating component (10) comprises a downstream valve seat (7) and a metal framework (101) arranged between the downstream valve seat (7) and the downstream installation groove (3) in a sleeved mode and an extrusion inclined plane (102) arranged on the outer peripheral wall of the metal framework (101), wherein the extrusion inclined plane (102) extends along one side back to the ball body (5) and is gradually and inwards inclined necking.
3. The carbon graphite valve seat material structure high-temperature floating ball valve as claimed in claim 1, wherein: the upstream valve seat (6) comprises a main body part (61) arranged in the upstream mounting groove (2) in a sliding mode and a sealing part (62) arranged on the main body part (61) and matched with the ball body (5) to form sealing, the sealing part (62) is made of carbon graphite, the main body part (61) is made of metal, and the main body part (61) and the sealing part (62) are fixed in a sintering mode.
4. The carbon graphite valve seat material structure high-temperature floating ball valve as claimed in claim 1, wherein: and a plurality of radiating fins (11) are distributed on the outer wall of the valve body (1) corresponding to the position of the valve rod (4).
5. The carbon graphite valve seat material structure high-temperature floating ball valve as claimed in claim 1, wherein: and a plurality of sealing fillers (12) are arranged between the valve body (1) and the valve rod (4).
6. The carbon graphite valve seat material structure high-temperature floating ball valve as claimed in claim 3, wherein: a sealing element (13) is arranged between the main body part (61) and the upstream mounting groove (2), and when the main body part (61) moves back to the ball body (5), the main body part (61) presses the sealing element (13).
CN202020587319.XU 2020-04-17 2020-04-17 High-temperature floating ball valve with carbon graphite valve seat material structure Active CN212004363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020587319.XU CN212004363U (en) 2020-04-17 2020-04-17 High-temperature floating ball valve with carbon graphite valve seat material structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020587319.XU CN212004363U (en) 2020-04-17 2020-04-17 High-temperature floating ball valve with carbon graphite valve seat material structure

Publications (1)

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CN212004363U true CN212004363U (en) 2020-11-24

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Application Number Title Priority Date Filing Date
CN202020587319.XU Active CN212004363U (en) 2020-04-17 2020-04-17 High-temperature floating ball valve with carbon graphite valve seat material structure

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114060563A (en) * 2021-12-21 2022-02-18 江苏华英阀业有限公司 Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114060563A (en) * 2021-12-21 2022-02-18 江苏华英阀业有限公司 Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve

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