CN103256394A - Instrument blocking valve with non-rotary valve rod - Google Patents

Instrument blocking valve with non-rotary valve rod Download PDF

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Publication number
CN103256394A
CN103256394A CN2013101896981A CN201310189698A CN103256394A CN 103256394 A CN103256394 A CN 103256394A CN 2013101896981 A CN2013101896981 A CN 2013101896981A CN 201310189698 A CN201310189698 A CN 201310189698A CN 103256394 A CN103256394 A CN 103256394A
Authority
CN
China
Prior art keywords
valve
valve rod
filler
cooperates
seat
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.)
Pending
Application number
CN2013101896981A
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Chinese (zh)
Inventor
朱义芳
张逢利
陆纪宏
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.)
Jiangsu Xinghe Valve Co Ltd
Original Assignee
Jiangsu Xinghe Valve 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 Jiangsu Xinghe Valve Co Ltd filed Critical Jiangsu Xinghe Valve Co Ltd
Priority to CN2013101896981A priority Critical patent/CN103256394A/en
Publication of CN103256394A publication Critical patent/CN103256394A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an instrument blocking valve with a non-rotary valve rod. The instrument blocking valve is composed of a valve body, a valve seat, the valve rod, packing, a packing bushing, an adjusting part, a bearing support, a steel ball, a valve rod nut, a shaft sleeve and the like. The instrument blocking valve is characterized by being of a structure that the valve rod nut uses rotation of a ball bearing to drive the valve rod to rise and descend instead of rotating. Thus, the instrument blocking valve is smallest in friction coefficient, long in service and smooth and flexible to operate. When the valve is opened, the valve rod rises, a reversed conical face at the valve core portion and an inner step of the valve seat are closed to form a reversed stopping back sealing structure. The instrument blocking valve is excellent in sealing performance, safety and controllability and especially suitable for high-temperature, high-pressure, corrosive, poisonous and harmful medium occasions and pipes.

Description

Valve rod does not rotate instrument block valve
Technical field
The present invention relates to design and the manufacturing of valve, be widely used in the industrial pipeline, the liquid in the instrumentation pipelines such as all kinds of flows in particularly controlling automatically, differential pressure, pressure, liquid level or keying and the control gear of gas medium.
Background technique
At present, the instrument block valve of extensive use is all tightly embraced valve rod by filler and is realized sealing, need rotatable handle or handwheel to drive valve rod during operation and directly under the effect of filler internal spiral lifting, carry out keying, because the valve rod spiral lifting produces very big frictional force and certain friction amount in filler, so wearing and tearing and operational torque are bigger easily, influence sealability and the working life of valve.
Summary of the invention
In order to overcome existing instrument block valve packing seal position frictional force and big, the easy to wear deficiency of amount of friction.The invention provides and a kind ofly adopt the not structure of rotary lifting movement of ball bearing rotating band ovable valve stem by Stem Mut, make its friction factor minimum, long service life is operated free and relaxed.When opening valve, there is step closure in reverse conical surface and the valve seat at the spool position of valve rod, forms oppositely to stop the back seal structure.The present invention is specially adapted in the pipeline of media such as High Temperature High Pressure and corrosivity.
Technological scheme of the present invention is:
1, a kind of valve rod does not rotate instrument block valve, formed by valve body, valve seat, valve rod, filler, filler gland, adjusting element, bearing support, steel ball, Stem Mut, axle sleeve etc., it is characterized in that: an end of valve rod is spool, the top of spool is reverse circular cone, the middle part is polished rod, and the other end is screw thread; Valve rod is placed in the valve seat, the two ends of filler have Packing seat to place the interior bottom of valve seat respectively, packing into screws in behind the filler gland and adjusts adjusting element, makes its extruding filler gland compress Packing seat and filler to filler and tightly embraces valve rod and form sealing configuration, and locknut is screwed locking.Metal o-ring is housed the upper threaded end of valve body and the valve seat lower thread closely cooperates.Bearing support, steel ball, Stem Mut and axle sleeve are equipped with in adjusting element inside, and the circumference between the outer step both sides of Stem Mut and bearing support and the axle sleeve is arranged the steel ball of some quantity same sizes respectively, regulate suitable back locking locknut location, gap by axle sleeve.Handle or handwheel are installed in top at Stem Mut, and rotatable handle or handwheel drive the Stem Mut rotation, make valve rod straight line lifting up and down, carry out the open and close of valve.
2, described valve seat bottom is outside thread and hexagonal, and its endoporus is provided with step in the valve seat; Top is cylinder, and there is the deep hole that cooperates with filler and filler gland etc. inside, and oral area is that internal thread cooperates with adjusting element.
3, one of described link is that outside thread cooperates with valve gap, and the stage casing is outer-hexagonal, and inside has hole and the screw thread that cooperates with valve rod, bearing support, Stem Mut, axle sleeve respectively.
4, an end of described Stem Mut is the one section cylindrical that cooperates with bearing support, internal thread and valve rod are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread that cooperates with axle sleeve, handle or handwheel etc. respectively, intermediary outside has a step, and its both sides have puts steel ball and the circular trough consistent with spherical cambered surface respectively.
When 5, opening valve, valve rod rises and causes step closure in the reverse conical surface in spool position and the valve seat, forms and oppositely stops the back seal structure, has blocked the medium upper reaches.
Advantage of the present invention and beneficial effect are:
1, spool and valve rod integrated design, filler is tightly embraced valve rod and is not rotated, adopt the not structure of rotary lifting movement of ball bearing rotating band ovable valve stem by Stem Mut, frictional force between filler and the valve rod and fricting movement amount minimize, make the sealability of valve more excellent, operate lighter, longer service life.
2, because filler in the lower position sealing of valve rod and valve seat, completely cuts off medium, be conducive to cleaning and the lubrication effect of all superstructure component inside.
When 3, opening valve, there is step closure in reverse conical surface and the valve seat at the spool position of valve rod, forms oppositely to stop the back seal structure, has blocked the medium upper reaches, has increased by one security seal guarantee.
4, the present invention is specially adapted in the occasion and pipeline of high temperature, high pressure, corrosivity, medium such as poisonous, harmful.
Description of drawings
Fig. 1 does not rotate instrument stop valve structure figure for valve rod.
Among the figure: 1, step 3, Packing seat 4, metal packing washer 5, filler 6, valve rod 6-1, reverse circular cone 7, filler gland 8, adjusting element 9, locknut 10, bearing support 11, steel ball 12, Stem Mut 13, locknut 14, axle sleeve 15, handle or handwheel 16, packing ring 17, nut in valve body 2, valve seat 2-1, the valve seat
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
1, a kind of valve rod does not rotate instrument block valve, formed by valve body (1), valve seat (2), valve rod (6), filler (5), filler gland (7), adjusting element (8), bearing support (10), steel ball (11), Stem Mut (12), axle sleeve (14) etc., it is characterized in that: an end of valve rod (6) is spool, the top of spool is reverse circular cone (6-1), the middle part is polished rod, and the other end is screw thread; Valve rod (6) is placed in the valve seat (2), the two ends of filler (5) have Packing seat (3) to place the interior bottom of valve seat (2) respectively, packing into, filler gland (7) back screws in and adjustment adjusting element (8), make its extruding filler gland (7) compress Packing seat (3) and filler (5) to filler (5) and tightly embrace valve rod (6) formation sealing configuration, locknut (9) is screwed locking.The upper threaded end of valve body (1) is equipped with metal o-ring (4) and closely cooperates with valve seat (2) lower thread.Bearing support (10), steel ball (11), Stem Mut (12) and axle sleeve (14) are equipped with in adjusting element (8) inside, circumference between Stem Mut (12) outer step both sides and bearing support (10) and the axle sleeve (14) is arranged the steel ball (11) of some same sizes respectively, regulates the suitable back locking locknut in gap (13) location by axle sleeve (14).Handle or handwheel (15) are installed in top at Stem Mut (12), and rotatable handle or handwheel (15) drive Stem Mut (12) rotation, make valve rod (6) straight line lifting up and down, carry out the open and close of valve.
2, described valve seat (2) bottom is outside thread and hexagonal, and its endoporus is provided with step (2-1) in the valve seat; Top is cylinder, and there is the deep hole that cooperates with filler (5) and filler gland (7) etc. inside, and oral area is that internal thread cooperates with adjusting element (8).
3, one of described adjusting element (8) is that outside thread cooperates with valve seat (2), and the stage casing is outer-hexagonal, and inside has hole and the screw thread that cooperates with valve rod (6), bearing support (10), Stem Mut (12), axle sleeve (14) respectively.
4, an end of described Stem Mut (12) is the one section cylindrical that cooperates with bearing support (10), internal thread and valve rod (2) are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread that cooperates with axle sleeve (14), handle or handwheel (15) etc. respectively, intermediary outside has a step, and its both sides have puts steel ball (11) and the circular trough consistent with spherical cambered surface respectively.
When 5, opening valve rod (6) rising, step (2-1) closure in spool position reverse circular cone (6-1) face and the valve seat forms and oppositely stops the back seal structure, has blocked the medium upper reaches.

Claims (7)

1. a valve rod does not rotate instrument block valve, by valve body (1), valve seat (2), valve rod (6), filler (5), filler gland (7), adjusting element (8), bearing support (10), steel ball (11), Stem Mut (12), axle sleeve compositions such as (14), it is characterized in that: valve rod (6) is placed in the valve seat (2), the two ends of filler (5) have Packing seat (3) to place the interior bottom of valve seat (2) respectively, packing into, filler gland (7) back screws in and adjustment adjusting element (8), its extruding filler gland (7) compresses Packing seat (3) and filler (5) to filler (5) is tightly embraced valve rod (6) formation sealing, and locknut (9) is screwed locking; The upper threaded end of valve body (1) is equipped with metal o-ring (4) and closely cooperates with valve seat (2) lower thread.
2. do not rotate instrument block valve according to the described valve rod of claim 1, it is characterized in that: bearing support (10), steel ball (11), Stem Mut (12) and axle sleeve (14) are equipped with in adjusting element (8) inside, circumference between Stem Mut (12) outer step both sides and bearing support (10) and the axle sleeve (14) is arranged the steel ball (11) of some quantity same sizes respectively, regulates the suitable back locking locknut in gap (13) location by axle sleeve (14); Handle or handwheel (15) are installed in top at Stem Mut (12), and rotatable handle or handwheel (15) drive Stem Mut (12) rotation, make valve rod (6) straight line lifting up and down.
3. do not rotate instrument block valve according to the described valve rod of claim 1, it is characterized in that: when valve rod (6) rose, step (2-1) closure in spool position reverse circular cone (6-1) face and the valve seat formed and oppositely stops back seal.
4. do not rotate instrument block valve according to the described valve rod of claim 1, it is characterized in that: an end of described valve rod (6) is spool, and the top of spool is reverse circular cone (6-1), and the middle part is polished rod, and the other end is screw thread.
5. do not rotate instrument block valve according to the described valve rod of claim 1, it is characterized in that: described valve seat (2) bottom is outside thread and hexagonal, and its endoporus is provided with step (2-1) in the valve seat; Top is cylinder, and there is the deep hole that cooperates with filler (5) and filler gland (7) etc. inside, and oral area is that internal thread cooperates with adjusting element (8).
6. according to the described adjusting element of claim 2 (8), it is characterized in that: one of adjusting element (8) is that outside thread cooperates with valve seat (2), the stage casing is outer-hexagonal, and inside has hole and the screw thread that cooperates with valve rod (6), bearing support (10), Stem Mut (12), axle sleeve (14) respectively.
7. do not rotate instrument block valve according to the described valve rod of claim 1, it is characterized in that: an end of described Stem Mut (12) is the one section cylindrical that cooperates with bearing support (10), internal thread and valve rod (2) are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread that cooperates with axle sleeve (14), handle or handwheel (15) etc. respectively, intermediary outside has a step, and its both sides have puts steel ball (11) and the circular trough consistent with spherical cambered surface respectively.
CN2013101896981A 2013-05-17 2013-05-17 Instrument blocking valve with non-rotary valve rod Pending CN103256394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101896981A CN103256394A (en) 2013-05-17 2013-05-17 Instrument blocking valve with non-rotary valve rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101896981A CN103256394A (en) 2013-05-17 2013-05-17 Instrument blocking valve with non-rotary valve rod

Publications (1)

Publication Number Publication Date
CN103256394A true CN103256394A (en) 2013-08-21

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CN2013101896981A Pending CN103256394A (en) 2013-05-17 2013-05-17 Instrument blocking valve with non-rotary valve rod

Country Status (1)

Country Link
CN (1) CN103256394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105422880A (en) * 2016-01-25 2016-03-23 苏州巨瀚阀门有限公司 Novel cutoff valve
WO2017000209A1 (en) * 2015-06-30 2017-01-05 Honeywell International Inc. Rod guide assembly and valve
CN106870740A (en) * 2017-03-28 2017-06-20 江苏星河阀门有限公司 Novel high-temperature high-pressure gauge valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN88211308U (en) * 1988-01-06 1988-12-28 上海良工阀门厂 Cut-off valves for power station
CN2643088Y (en) * 2002-12-03 2004-09-22 朱文 Ultra-light force moment high-temperature high-pressure cut-off valve
US20070071599A1 (en) * 2005-09-29 2007-03-29 Masahiko Arai High-strength heat resisting cast steel, method of producing the steel, and applications of the steel
CN201443649U (en) * 2008-10-13 2010-04-28 江苏星河集团有限公司 Instrument block valve of dual seal structure with non-rotary lower valve stem
CN202691077U (en) * 2012-06-19 2013-01-23 江苏盐电阀门有限公司 High-pressure self-sealing stop valve
CN203442159U (en) * 2013-05-17 2014-02-19 江苏星河阀门有限公司 Instrument stop valve with non-rotating valve rod

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN88211308U (en) * 1988-01-06 1988-12-28 上海良工阀门厂 Cut-off valves for power station
CN2643088Y (en) * 2002-12-03 2004-09-22 朱文 Ultra-light force moment high-temperature high-pressure cut-off valve
US20070071599A1 (en) * 2005-09-29 2007-03-29 Masahiko Arai High-strength heat resisting cast steel, method of producing the steel, and applications of the steel
CN201443649U (en) * 2008-10-13 2010-04-28 江苏星河集团有限公司 Instrument block valve of dual seal structure with non-rotary lower valve stem
CN202691077U (en) * 2012-06-19 2013-01-23 江苏盐电阀门有限公司 High-pressure self-sealing stop valve
CN203442159U (en) * 2013-05-17 2014-02-19 江苏星河阀门有限公司 Instrument stop valve with non-rotating valve rod

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017000209A1 (en) * 2015-06-30 2017-01-05 Honeywell International Inc. Rod guide assembly and valve
CN105422880A (en) * 2016-01-25 2016-03-23 苏州巨瀚阀门有限公司 Novel cutoff valve
CN106870740A (en) * 2017-03-28 2017-06-20 江苏星河阀门有限公司 Novel high-temperature high-pressure gauge valve

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Application publication date: 20130821