CN102207205A - Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof - Google Patents
Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof Download PDFInfo
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- CN102207205A CN102207205A CN 201110062896 CN201110062896A CN102207205A CN 102207205 A CN102207205 A CN 102207205A CN 201110062896 CN201110062896 CN 201110062896 CN 201110062896 A CN201110062896 A CN 201110062896A CN 102207205 A CN102207205 A CN 102207205A
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Abstract
The invention relates to an integral forged high-temperature high-pressure abnormal protective seal ball valve device and a mounting method thereof. The device comprises a valve body, a support, a starting and stopping piece and an upper-mounting-type valve rod structure, wherein the valve body and the support are integrated; the starting and stopping piece controls the passing of a fluid; the valve body is of a cross arrangement structure formed by forging; a downstream valve seat is arranged in a transverse through path of the valve body, and forms a seal state with the valve body; a ball, an upstream valve seat, a butterfly spring and a butterfly spring guide sleeve are sequentially sleeved in a passageway of the valve body; the support which is integrated with the valve body is provided with a platform; the support is sequentially provided with valve rods; each valve rod is externally provided with a valve rod guide sleeve; the upper part of the valve rod guide sleeve is provided with a filler set, a filler pressing sleeve, a filler pressure plate, a locking bolt, a butterfly-type spring gasket and a locking nut; a torque rotary shaft is arranged at the top part of each valve rod, and is connected with each valve rod; and the upper part of the torque rotary shaft is provided with a valve rod thrust sleeve. According to the invention, leakage is eliminated, the ball valve is enabled to have a self-seal property, the seal property of the ball valve is ensured to be more reliable, the working efficiency of a system is improved, and the system maintaining is much safe.
Description
Technical field
The present invention relates to a kind of ball-cock device; be meant a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit especially; it is to be used for high temperature, high pressure, high circulation, thermal shock and to wash away etc. under the harsh working condition, in the pipeline of various systems such as fired power generating unit and recirculation combined plant system and petroleum refining, chemical industry, metallurgy.
Background technique
High temperature, high pressure, high circulation, thermal shock and fired power generating unit under the harsh working condition such as wash away and various systems such as recirculation combined plant system, petroleum refining, chemical industry, metallurgy in pipeline in, seal ball-valve be commonly used to connection, open, close seal arrangement.Because in high temperature, high pressure, high circulation, thermal shock with wash away etc. under the harsh working condition and work, so just strict especially to the technical requirements of such ball-cock device.The ball valve that uses in traditional High Temperature High Pressure system very easily is subjected to abominable situation influence, as the leakage of the improper easier initiation sealing part of fruit structure.Under some abominable operating conditions, inner open-shut device can take place blow out and valve rod accident such as scurry out, thereby cause equipment and operator's damage and harm.
The design code of ball valve clearly the regulation valve should have the valve rod of preventing and eject requirement, the ball valve that uses at high temperature and high pressure condition is existing to be installed in valve gap to prevent the valve rod ejecting structure.As seen but Velan U.S. Patent number No.6095493, Brian R.Hall U.S. Patent number No.7.093.819B1 Known designs are gone back defectiveness on valve cover structure:
The installation of defective one, valve rod need be used dismountable lining and Glan, and this demountable structure design is the inducement that causes the valve parts infringement, has increased installation time simultaneously;
The valve rod of defective two, lengthening extends to outside the valve gap upper mounting plate, the axial motion of valve rod takes place easily and destroys the existing sealing state of ball valve, quickens to leak in the High Temperature High Pressure situation;
Defective three, detachable Glan have applied uneven power to stuffing box packing, are inducements that causes valve leakage out of steam system.
Summary of the invention
The objective of the invention is to overcome the deficiency in the background technique and a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit is provided; it can be stopped a leak; ball valve is had from close property; the sealing that guarantees ball valve is more reliable; can improve the working efficiency of system, make system maintenance safer.
Technological scheme of the present invention is:
A kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit is characterized in that: valve body and support adopt one-body molded hard sealing to forge, and include open-shut device that the valve body of one and support, control fluid pass through, go up dress formula stem structure; Valve body is for forging the horizontal structure that forms; The downstream valve seat is arranged in the horizontal latus rectum of valve body, and is sealing state with valve body; Ball, upstream valve seat, butterfly spring, butterfly spring guide sleeve are packed into successively and are located in the runner of valve body; On the support that forges with the valve body one, be provided with a platform; Be provided with valve rod, valve rod on the support successively and be provided with the stem guiding cover outward; Stem guiding cover top is provided with filler group, filler gland, hold-down grid, lock bolt, butterfly spring packing ring, locking nut; The moment of torsion running shaft is located at the top of valve rod, and is connected with it; The top of moment of torsion running shaft is provided with the valve rod thrust housing; The platform of support is provided with thrust washer, handle; Handle is provided with elasticity lock washer, the locking pad of handle, Cock screw; Lock dog is located at above the platform; Support is provided with the off-position locking nut with limit function, the off-position lock bolt that prevent misoperation, opens the position locking bolt.
Wherein, lock bolt passes hold-down grid, and by butterfly spring packing ring, locking nut, fastening filler group and filler gland.
The valve rod thrust housing is provided with a boss; Boss matches with the shaft shoulder of rack platform.
Cock screw passes platform and the valve rod top is spirally connected.
The moment of torsion running shaft can be connected with electro-pneumatic actuator live axle.
The invention has the advantages that: at the solid forging hard seal ball valve, valve body and support adopt moulding to forge, and adopt in the valve body to prevent butterfly spring guide sleeve and the valve body cooperating structure that inner open-shut device oppositely blows out; Can prevent that with the supporting structure of valve body one valve rod is subjected to internal abnormality pressure and scurries out and prevent valve rod to bottom offset, is provided with the locking device that prevents the valve faulty operation; Can also manually-operable or electro-pneumatic operation.The present invention has eliminated leakage, and ball valve is had from close property, has guaranteed that the sealing of ball valve is more reliable, has improved the working efficiency of system, makes system maintenance safer.
Description of drawings
Fig. 1 is the horizontal structural representation of valve body of the present invention.
Fig. 2 is a valve body structure side schematic view of the present invention.
Fig. 3 is a valve body supporting structure schematic representation of the present invention.
Fig. 4 is a STRUCTURE DECOMPOSITION schematic representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes: valve body 1 is for forging the horizontal structure that forms; Downstream valve seat 2 is arranged in the valve body 1 horizontal latus rectum, and is sealing state with valve body 1; Ball 3, upstream valve seat 4, butterfly spring 5, butterfly spring guide sleeve 6 are successively set in the runner of valve body 1.Wherein, form open-shut device by downstream valve seat 2, ball 3, upstream valve seat 4, butterfly spring 5, butterfly spring guide sleeve 6.
As shown in Figure 3, Figure 4, on the support 27 that forges with valve body 1 one, be provided with a platform 28; Be provided with valve rod 7 on the support 27 successively; Valve rod 7 outsides are arranged with stem guiding cover 8; Stem guiding overlaps 8 tops and is provided with filler group 9, filler gland 10, hold-down grid 11; Lock bolt 14 passes hold-down grid 11, and by butterfly spring packing ring 12, locking nut 13, fastening filler group 9 and filler gland 10; Moment of torsion running shaft 15 is located at the top of valve rod 7, and is connected with it; The top of moment of torsion running shaft 15 is provided with valve rod thrust housing 22; Valve rod thrust housing 22 is provided with a boss 26; The shaft shoulder 29 on the platform 28 of boss 26 and the support 27 of valve body 1 matches; The platform 28 of support 27 is provided with thrust washer 21, handle 19; Handle 19 is provided with elasticity lock washer 16, the locking pad 18 of handle; The moment of torsion running shaft 15 that Cock screw 17 passes platform 28 and valve rod 7 tops is spirally connected; Lock dog 20 is located on the platform 28; Support 27 is provided with the off-position locking nut 23 with limit function, the off-position lock bolt 24 that prevent misoperation, opens position locking bolt 25.
Installation method of the present invention is:
Last dress formula valve rod 7 cooperates by valve rod thrust housing 22 and torque drive running shaft 15, and prevention valve rod 7 is scurried out from valve body support 27; Simultaneously, tight fixed bolt 17 is again by after being spirally connected with valve rod 7, can bestow upwards pretightening force of 7 one of valve rods, is subjected to downward axial force to prevent valve rod 7, the accurate position that the guarantees open-shut device purpose of not being damaged.
The support 27 of solid forging is provided with the space of valve rod 7 being installed and being used for operating open-shut device; Valve rod 7 passes from the intermediate hole of filler gland 8 and hold-down grid 11; The pressure clamping sleeve that transmits by padding-locking bolt 14 and nut 15 is located at the filler group 9 on the valve rod 7; The shaft shoulder 26 on support 27 tops is provided with valve rod thrust housing 22, scurries out when being subjected to unusual thrust to stop valve rod 7; Pressing handle 19 is mentioned the tight fixed bolt 17 of valve rod 7 also simultaneously, with the valve rod 7 downward axial forces that prevent that abnormal conditions from producing, guarantees that the open-shut device sealing station is not destroyed.
Comprise forced and reverse spreading formula downstream valve seat 2 structures among the present invention; Can prevent butterfly spring guide sleeve 6 structures that inner open-shut device oppositely blows out; Available handle 19 operations or torque drive running shaft 15 structures that adopt the electro-pneumatic final controlling element to operate; And by the valve rod thrust housing 22 of packing in torque drive running shaft 15, dress formula valve rod 7 is subjected to abnormal pressure and the structure of scurrying out in the prevention.
HVAF technology can be adopted through cure process in ball 3 surface, makes the coating bond height; Coating bond is directly proportional with spraying rate, and can produce part microcell metallurgy combination mutually with matrix, has overcome the caducous chronic disease of tungsten carbide coating.
In order to overcome the not good enough shortcoming of Tungsten carbite in the sprayed on material (WC) high-temperature behavior, now adopted a kind of improved type WC, it is crystalline modified more promptly to add a certain amount of (CrC+Ni) melting in WC, make it on the basis that keeps typical abrasive wear resistance of WC and stiff dough polishing machine, possess the excellent and strong characteristics of corrosion resistance of CrC high-temperature behavior simultaneously, so, Ni-based chromium carbide is anti-oxidant more superior with corrosivity than other tungsten carbide-base material, resistance to chemical corrosion is good, wear-resisting property is good, coating is finer and close smooth, and serviceability temperature is up to 1400oF (760oC).Hardness HRC＞70, friction factor is little, is anticorrosive wearing and tearing cladding material the most excellent in the oxide ceramics.Combined oxidation chromium is based on chromium oxide, adds SiO2 and TiO2 and makes, compare with pure Cr2O3, and owing to SiO2 and TiO2 adding, the spraying coating process performance improvement, coating is fine and close more, 1.5 times of the pure Cr2O3 raisings of its wear-resistant grain wearing and tearing energy force rate.Because its release property can be better than Tungsten carbite, friction factor is littler than Tungsten carbite, and anti-corrosion capacity is much better than Tungsten carbite, and both hardness is suitable, but its usability sometimes even be better than the tungsten carbide-base material.
Claims (10)
1. solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit is characterized in that: valve body and support adopt one-body molded hard sealing to forge, and include open-shut device that the valve body of one and support, control fluid pass through, go up dress formula stem structure; Valve body is for forging the horizontal structure that forms; The downstream valve seat is arranged in the horizontal latus rectum of valve body, and is sealing state with valve body; Ball, upstream valve seat, butterfly spring, butterfly spring guide sleeve are packed into successively and are located in the runner of valve body; On the support that forges with the valve body one, be provided with a platform; Be provided with valve rod on the support successively; Valve rod is provided with the stem guiding cover outward; Stem guiding cover top is provided with filler group, filler gland, hold-down grid, lock bolt, butterfly spring packing ring, locking nut; The moment of torsion running shaft is located at the top of valve rod, and is connected with it; The top of moment of torsion running shaft is provided with the valve rod thrust housing; The platform of support is provided with thrust washer, handle; Handle is provided with elasticity lock washer, the locking pad of handle, Cock screw; Lock dog is located at above the platform; Support is provided with the off-position locking nut with limit function that prevents misoperation, the off-position lock bolt, opens the position locking bolt.
2. a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit according to claim 1, it is characterized in that: described lock bolt passes hold-down grid, and by butterfly spring packing ring, locking nut, fastening filler group and filler gland.
3. a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit according to claim 1, it is characterized in that: described valve rod thrust housing is provided with a boss; Boss matches with the shaft shoulder of rack platform.
4. a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit according to claim 1, it is characterized in that: described Cock screw passes platform and the valve rod top is spirally connected.
5. a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit according to claim 1 is characterized in that: described moment of torsion running shaft can be connected with the electro-pneumatic actuator live axle that replaces handle.
6. solid forging High Temperature High Pressure abnormal protection hard seal ball valve Unit Installation method, it is characterized in that: it comprises:
Steps A, is at first packed downstream valve seat (2) in the horizontal structure of valve body (1) into, and is determined that itself and valve body (1) are sealing state, in the runner of valve body (1) of then ball (3), upstream valve seat (4), butterfly spring (5), butterfly spring guide sleeve (6) being packed into successively; Form open-shut device by downstream valve seat (2), ball (3), upstream valve seat (4), butterfly spring (5), butterfly spring guide sleeve (6);
Step B, stem guiding cover (8), filler group (9), filler gland (10) are packed in the support (27); By lock bolt (14), butterfly spring packing ring (12) and locking nut (13) that hold-down grid (11) is fastening; But locking nut (13) need not locked this moment; Valve rod (7) is passed stem guiding cover (8) to ball (3), and its upper end is connected with moment of torsion running shaft (15); Then, the valve rod thrust housing (22) of packing into; The projection (26) of valve rod thrust housing (22) matches with the shaft shoulder (29) of platform (28), can prevent that valve rod (7) from scurrying out because of the external force accident; Platform (28) is provided with thrust washer (21), handle (19); Elasticity lock washer (16), the locking pad of handle (18) are housed above the handle (19); The moment of torsion running shaft (15) that again tight fixed bolt (17) is passed platform (28) and valve rod (7) top is spirally connected; Adjust the state that screws of lock bolt (14) again; Screw the moment of torsion of locking nut (13) to regulation; Load onto lock dog (20), and on support (27), be provided with limit function off-position locking nut (23), off-position lock bolt (24), open position locking bolt (25).
7. require 6 described a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball valve Unit Installation methods according to claim, it is characterized in that: described valve body (1) and support (27) adopt once-through to forge; The horizontal structure that allows fluid to pass through that is axially arranged with at valve body (1) wherein is provided with the open-shut device that the control fluid passes through; Downstream valve seat (2) in the open-shut device is fixed in the valve body (1); Ball (3), upstream valve seat (4) are quick condition with respect to valve body (1), and guarantee sealing state downstream by trying hard to recommend of applying of butterfly spring (5); Butterfly spring guide sleeve (6) can prevent that open-shut device from blowing out in valve body (1); Butterfly spring guide sleeve (6) is connected mutually with the annular groove of valve body (1), and its external diameter blows out from valve body (1) inside to prevent inner body greater than the big footpath of valve body (1) circulation; Provide powerful support for preventing that anti-phase displacement of inner open-shut device and valve rod (7) from scurrying out.
8. require 6 described a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball valve Unit Installation methods according to claim, it is characterized in that: described valve rod (7) cooperates by valve rod thrust housing (22) and torque drive running shaft (15), and prevention valve rod (7) is scurried out from valve body support (27); Simultaneously, tight fixed bolt (17) is again by after being spirally connected with valve rod (7), can bestow upwards pretightening force of (7) one of valve rods, is subjected to downward axial force to prevent valve rod (7), the accurate position that the guarantees open-shut device purpose of not being damaged.
9. require 6 described a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball valve Unit Installation methods according to claim, it is characterized in that: described support (27) is solid forging; And support (27) is provided with the space of valve rod (7) being installed and being used for operating open-shut device; Valve rod (7) passes from the intermediate hole of filler gland (8) and hold-down grid (11); The pressure clamping sleeve that transmits by padding-locking bolt (14) and nut (15) is located at the filler group (9) on the valve rod (7); The shaft shoulder 26 on support (27) top is provided with valve rod thrust housing 22, scurries out when being subjected to unusual thrust to stop valve rod 7; Pressing handle (19) is also mentioned the tight fixed bolt (17) of valve rod (7) simultaneously, can prevent the downward axial force of valve rod (7) that abnormal conditions produce, and guarantees that the open-shut device sealing station is not destroyed.
10. require 6 described a kind of solid forging High Temperature High Pressure abnormal protection hard seal ball valve Unit Installation methods according to claim, it is characterized in that: the ball in the described open-shut device (3), it can be according to service condition different choice unlike material; And its surface has the coating through cure process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062896 CN102207205B (en) | 2011-03-16 | 2011-03-16 | Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110062896 CN102207205B (en) | 2011-03-16 | 2011-03-16 | Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof |
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| CN102207205A true CN102207205A (en) | 2011-10-05 |
| CN102207205B CN102207205B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110062896 Active CN102207205B (en) | 2011-03-16 | 2011-03-16 | Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166071A (en) * | 2017-07-01 | 2017-09-15 | 宁波华成阀门有限公司 | A kind of high abrasion flow-guiding type water nozzle main body and its manufacture method |
| CN107850583A (en) * | 2015-08-11 | 2018-03-27 | 安捷伦科技有限公司 | Stacking laminar component with integrated functionality component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313976A (en) * | 1993-07-26 | 1994-05-24 | Keystone International Holdings, Corp. | Top entry ball valve and method of assembly |
| TW487790B (en) * | 1999-01-12 | 2002-05-21 | Velan Inc | High pressure valve |
| CN1776269A (en) * | 2005-12-01 | 2006-05-24 | 浙江成达特种阀门厂 | Scraper type two-way high-temperature metal hard-sealed ball valve |
| CN101581375A (en) * | 2009-06-26 | 2009-11-18 | 昆山维萨阀门有限公司 | Metal hard seal ball valve |
| CN201934707U (en) * | 2011-03-16 | 2011-08-17 | 北京蓝爱迪电力技术有限公司 | Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function |
-
2011
- 2011-03-16 CN CN 201110062896 patent/CN102207205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5313976A (en) * | 1993-07-26 | 1994-05-24 | Keystone International Holdings, Corp. | Top entry ball valve and method of assembly |
| TW487790B (en) * | 1999-01-12 | 2002-05-21 | Velan Inc | High pressure valve |
| CN1776269A (en) * | 2005-12-01 | 2006-05-24 | 浙江成达特种阀门厂 | Scraper type two-way high-temperature metal hard-sealed ball valve |
| CN101581375A (en) * | 2009-06-26 | 2009-11-18 | 昆山维萨阀门有限公司 | Metal hard seal ball valve |
| CN201934707U (en) * | 2011-03-16 | 2011-08-17 | 北京蓝爱迪电力技术有限公司 | Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850583A (en) * | 2015-08-11 | 2018-03-27 | 安捷伦科技有限公司 | Stacking laminar component with integrated functionality component |
| CN107166071A (en) * | 2017-07-01 | 2017-09-15 | 宁波华成阀门有限公司 | A kind of high abrasion flow-guiding type water nozzle main body and its manufacture method |
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| Publication number | Publication date |
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| CN102207205B (en) | 2013-02-06 |
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