CN201934707U - Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function - Google Patents

Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function Download PDF

Info

Publication number
CN201934707U
CN201934707U CN2011200688047U CN201120068804U CN201934707U CN 201934707 U CN201934707 U CN 201934707U CN 2011200688047 U CN2011200688047 U CN 2011200688047U CN 201120068804 U CN201120068804 U CN 201120068804U CN 201934707 U CN201934707 U CN 201934707U
Authority
CN
China
Prior art keywords
valve
valve body
support
high temperature
valve rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011200688047U
Other languages
Chinese (zh)
Inventor
武海
王骥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing LAD Electric Power Technology Co Ltd
Original Assignee
Beijing LAD Electric Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing LAD Electric Power Technology Co Ltd filed Critical Beijing LAD Electric Power Technology Co Ltd
Priority to CN2011200688047U priority Critical patent/CN201934707U/en
Application granted granted Critical
Publication of CN201934707U publication Critical patent/CN201934707U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Lift Valve (AREA)

Abstract

The utility model relates to an integrally forged hard sealing ball valve device with an abnormal high temperature and pressure protection function, which comprises a valve body and a support which are integrally arranged, a disc for controlling fluid to pass through, and an upper-mounted valve stem structure, wherein the valve body is in a transverse structure formed by forging, and a downstream valve seat is arranged in a transverse path of the valve body; the downstream valve seat and the valve body are in a sealing state, and a ball, an upstream valve seat, a butterfly spring and a butterfly spring guide sleeve are sequentially arranged in a runner of the valve body; a platform is arranged on the support which is integrally forged with the valve body, and a valve stem and a valve stem guide sleeve arranged outside the valve stem are sequentially arranged on the support; a packing group, a packing pressing sleeve, a packing pressing plate, a locking bolt, a butterfly-type spring washer and a locking nut are arranged at the upper part of the valve stem guide sleeve, and a torque rotating shaft is arranged at the top of the valve stem and is connected with the valve stem; and a valve stem thrust sleeve is arranged at the upper part of the torque rotating shaft. In the integrally forged hard sealing ball valve device, the leakage is eliminated, so that a ball valve has a self-sealing performance, the sealing performance of the ball valve is more reliable, the working efficiency of a system is improved, and the system is more convenient to maintain.

Description

Solid forging High Temperature High Pressure abnormal protection hard seal ball control valve unit
Technical field
The utility model 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.7.093.819 B1 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 purpose of this utility model 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.
The technical solution of the utility model 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.
Advantage of the present utility model is: 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 utility model.
Fig. 2 is a valve body structure side schematic view of the present utility model.
Fig. 3 is a valve body supporting structure schematic representation of the present utility model.
Fig. 4 is a STRUCTURE DECOMPOSITION schematic representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises: 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 utility model is:
Step 1, 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 the valve body 1 of then ball 3, upstream valve seat 4, butterfly spring 5, butterfly spring guide sleeve 6 being packed into successively;
Step 2, 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 need not locked for 13 this moments; 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 18 of handle 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 tops 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.
Valve body 1 of the present utility model and support 27 are to adopt once-through to forge, and 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; The annular groove of butterfly spring guide sleeve 6 and valve body 1 is connected mutually, and its external diameter is greater than the big footpath of valve body 1 circulation, and this has just prevented that inner body from blowing out from valve body 1 inside; Provide powerful support for preventing that anti-phase displacement of inner open-shut device and valve rod 7 from scurrying out.
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 in the utility model; 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.
Ball 3 in the open-shut device described in the utility model, it can be according to service condition different choice unlike material; And its surface has the coating through cure process.
Ball 3 can be made by various materials, such as: stainless steel, titanium, zirconium and various alloys etc.; Its sphere can spray the anticorrosive and friction resistant coating of various materials, comprises but is not limited only to chromium carbide, Tungsten carbite, chromium oxide, nitride and boride etc.
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 (5)

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, it is characterized in that: described moment of torsion running shaft can be connected with electro-pneumatic actuator live axle.
CN2011200688047U 2011-03-16 2011-03-16 Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function Expired - Lifetime CN201934707U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200688047U CN201934707U (en) 2011-03-16 2011-03-16 Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200688047U CN201934707U (en) 2011-03-16 2011-03-16 Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function

Publications (1)

Publication Number Publication Date
CN201934707U true CN201934707U (en) 2011-08-17

Family

ID=44446226

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200688047U Expired - Lifetime CN201934707U (en) 2011-03-16 2011-03-16 Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function

Country Status (1)

Country Link
CN (1) CN201934707U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207205A (en) * 2011-03-16 2011-10-05 北京蓝爱迪电力技术有限公司 Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof
CN108194657A (en) * 2018-03-27 2018-06-22 高特控股集团有限公司 A kind of water pipe valve
WO2019047377A1 (en) * 2017-09-08 2019-03-14 江苏科维仪表控制工程有限公司 Pneumatic high-temperature high-pressure water-repellent ball valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207205A (en) * 2011-03-16 2011-10-05 北京蓝爱迪电力技术有限公司 Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof
CN102207205B (en) * 2011-03-16 2013-02-06 北京蓝爱迪电力技术有限公司 Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof
WO2019047377A1 (en) * 2017-09-08 2019-03-14 江苏科维仪表控制工程有限公司 Pneumatic high-temperature high-pressure water-repellent ball valve
CN108194657A (en) * 2018-03-27 2018-06-22 高特控股集团有限公司 A kind of water pipe valve

Similar Documents

Publication Publication Date Title
CN201934707U (en) Integrally forged hard sealing ball valve device with abnormal high temperature and pressure protection function
CN101504078B (en) Screw-in forged high pressure cage type balanced regulation cut-off corner valve
CN102536347A (en) Steam extraction lifting plate type adjusting valve of steam turbine
AU2012264342A1 (en) Solids-handling equipment
WO2012164415A1 (en) Solids-handling equipment
CN102207205A (en) Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof
JP2014070513A (en) Steam valve for steam turbine
CN117905904B (en) High-temperature wear-resistant and scouring-resistant ball valve
CN101504079A (en) Screw-in forged high pressure air defense small-flow corner valve
CN108644396B (en) Protection system of high temperature and high pressure valve
CN103603964B (en) Can on-line maintenance butt joint type High Temperature High Pressure fast shut-off steam ball valve
CN203098887U (en) Special high-pressure difference angle valve for black water
CN205780999U (en) A kind of high-temperature high-pressure metal seal fixes wear resistance ball valve
CN203686213U (en) Butt welding type high-temperature and high-pressure rapid cut-off steam ball valve supporting online maintenance
CN104373606A (en) Elastic stop valve and operation method thereof
CN102937190A (en) Ultra-large-diameter material switch angle valve
CN203023507U (en) Separating angle shutoff/throttling valve
CN201071938Y (en) Dual-purpose valve
CN108869772A (en) A kind of dedicated hard sealing lock hopper moushroom valve of coal chemical industry
CN208503487U (en) A kind of electric sleeve barrel formula adjustable throttling
CN209213028U (en) A kind of control valve e molded line sealing structure
CN108626405A (en) A kind of electric sleeve barrel formula adjustable throttling
CN204828748U (en) Three formula pottery ball valves
CN202451900U (en) Right-angle quick closing check valve
CN109163118B (en) Lever type fine adjustment fluid distribution regulating valve

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20110817

CX01 Expiry of patent term