CN104405895A - Novel stop valve - Google Patents

Novel stop valve Download PDF

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Publication number
CN104405895A
CN104405895A CN201410651157.0A CN201410651157A CN104405895A CN 104405895 A CN104405895 A CN 104405895A CN 201410651157 A CN201410651157 A CN 201410651157A CN 104405895 A CN104405895 A CN 104405895A
Authority
CN
China
Prior art keywords
valve
valve rod
valve body
rod
spool
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
CN201410651157.0A
Other languages
Chinese (zh)
Inventor
吴振宇
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.)
NANTONG LONGYUAN POWER VALVE CO Ltd
Original Assignee
NANTONG LONGYUAN POWER 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 NANTONG LONGYUAN POWER VALVE CO Ltd filed Critical NANTONG LONGYUAN POWER VALVE CO Ltd
Priority to CN201410651157.0A priority Critical patent/CN104405895A/en
Publication of CN104405895A publication Critical patent/CN104405895A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F16K1/04—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves

Abstract

The invention relates to a novel stop valve. The novel stop valve comprises a valve body, a valve rod, a valve seat, a valve cover, a filler structure and a valve element, wherein a connection structure between the valve rod and the valve element is characterized in that the valve element is a sphere body, and the lower end of the valve rod is provided with a cylindrical cavity for embedding the sphere body; meanwhile, a circular-arc-shaped groove fitted with the sphere body is formed in the top end of the cylindrical cavity. The novel stop valve has the advantages that the valve element of the stop valve is changed into the sphere body, and an original conical plane and plane contact manner of a sealing face is changed into a spherical contact manner, and the sphere body is covered by the valve rod and can freely rotate for 360 degrees at the head of the valve rod; when the valve is slightly opened, the floating sphere body does rotary movement, and the sealing surface is prevented from being washed by media; the form of the sealing face is a spherical surface, so that the ball can be sealed at any state of 360 degrees.

Description

A kind of novel cutoff valve
Technical field
The present invention relates to a kind of stop valve, particularly a kind ofly reduce the novel cutoff valve that wash away of medium to sealing surface.
Background technique
The open-shut device of stop valve (stop valve, Globe Valve) is the flap of stopper, and in plane or the extra large conical surface above sealing, flap is along the center line moving linearly of valve seat.The forms of motion of valve rod, (adopted name: dark bar), also has lifting rotation rod-type to can be used for controlling the flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Valve rod due to such valve open or shutoff stroke relatively short, and there is cutting function very reliably, again due to the change of valve seat port and the stroke direct proportionality of flap, be very suitable for the adjustment to flow.
At present, the stop valve in commercially using, its valve is when just opening, the pressure of MEDIA FLOW warp is maximum, simultaneously also larger to washing away of the sealing surface of valve, when especially running into high-pressure medium, the easier sealing surface to valve causes damage, affects sealing effect; In addition, what the connection between its valve body with support adopted usually is the mode be threaded, and adopts the stop valve of such Placement in the process of carrying out work, and it at high temperature easily occurs the phenomenon of killing, and under high pressure easily occurs the situation of distortion.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly reduces the novel cutoff valve that wash away of medium to sealing surface.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of novel cutoff valve, and its innovative point is: comprise valve body, valve rod, valve seat, valve gap, filling-material structure and spool;
Described valve gap is positioned at the upper end of valve body, and match with valve body, in valve body, valve seat is installed, described valve rod stretches in the inner chamber of valve body from top to bottom, and also filling-material structure is provided with between valve rod and body cavity, be connected with spool in the lower end of valve rod, the sealing surface of described spool and the sealing surface of valve seat form sealing pair;
Linkage structure between described valve rod and spool is specially: described spool is a spherosome, has the cylindrical cavity that an appearance spherosome embeds in the lower end of valve rod, has the circular groove fitted with spherosome on the top of this cylindrical cavity simultaneously.
Further, described spherosome is flexibly connected with between valve rod, and can carry out 360 ° of rotations.
Further, described support is connected by divided ring with between valve body, and is tightened fixing by Cock screw.
Further, the linkage structure between described support and valve body is specially: have the circle shape groove A that an appearance divided ring embeds in the upper end of valve body, has a circle shape groove B corresponding with divided ring on support simultaneously.
The invention has the advantages that: the spool of stop valve is changed to spherosome, change the conical surface of original sealing surface and plane contact form into sphere-contact, spheroid valve rod outsourcing, ball can free 360 ° of rotations at valve rod head, when valve is in little unlatching, floating spheroid rotates, and avoids medium washing away sealing surface, form due to sealing surface is sphere, and ball can at 360 ° of free position lower seals; The connecting mode of valve body and support is changed to divided ring structure by worm structure, effectively prevents screw thread from high temperature killing, the generation of the situation of being under high pressure out of shape, and can quick despatch be realized.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of novel cutoff valve of the present invention.
Embodiment
Schematic diagram is as shown in Figure 1 known, and novel cutoff valve of the present invention comprises valve body 9, valve rod 7, valve seat, valve gap, filling-material structure and spool.
Valve gap is positioned at the upper end of valve body 9, and match with valve body 9, in valve body 9, valve seat is installed, valve rod 7 stretches in the inner chamber of valve body 9 from top to bottom, and also filling-material structure is provided with between valve rod 7 and the inner chamber of valve body 9, be connected with spool in the lower end of valve rod 7, the sealing surface of spool and the sealing surface of valve seat form sealing pair.
Linkage structure between valve rod 7 and spool is specially: spool is a spherosome 8, has the cylindrical cavity that an appearance spherosome 8 embeds in the lower end of valve rod 7, has the circular groove fitted with spherosome 8 on the top of this cylindrical cavity simultaneously.
Be flexibly connected between spherosome 8 with valve rod 8, and spherosome 8 freely can carry out 360 ° of rotations.When valve is under little opening state, spherosome 8 rotates, and avoids medium washing away the sealing surface of valve seat, and in addition when sealing, due to spool employing is spherosome structure, therefore can at 360 ° of free position lower seals.
Filling-material structure is specially: between valve rod 7 and valve body 9 inner chamber, be provided with filler cavity, filler 3 is filled with in filler cavity, be fixed by Gland 2 in the upper end of filler 3, the through hole holding stay-bolt 4 and pass is had in one end of Gland 2, stay-bolt 4 is fixed with nut through after this through hole, thus compress filler 3, also there is a Packing seat 6 between the lower end of filler 3 and valve body 9.
Support 1 is sleeved on the outer end of valve body 9, and is connected by divided ring 10 between support 1 with valve body 9, and tightens fixing by Cock screw 5.
Linkage structure between support 1 and valve body 9 is specially: have the circle shape groove A that an appearance divided ring 10 embeds in the upper end of valve body 9, has a circle shape groove B corresponding with divided ring 10 on support 1 simultaneously.
In the process of mounting bracket 1, first support 1 is sleeved on the outer end of valve body 9, then divided ring 10 is embedded in the circle shape groove A of valve body 9 respectively, then support 1 is upwards pulled, circle shape groove B on support 1 is adjacent to the outer surface of divided ring 10, finally Cock screw 5 on support 1 is tightened, complete assembling.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (4)

1. a novel cutoff valve, is characterized in that: comprise valve body, valve rod, valve seat, valve gap, filling-material structure and spool;
Described valve gap is positioned at the upper end of valve body, and match with valve body, in valve body, valve seat is installed, described valve rod stretches in the inner chamber of valve body from top to bottom, and also filling-material structure is provided with between valve rod and body cavity, be connected with spool in the lower end of valve rod, the sealing surface of described spool and the sealing surface of valve seat form sealing pair;
Linkage structure between described valve rod and spool is specially: described spool is a spherosome, has the cylindrical cavity that an appearance spherosome embeds in the lower end of valve rod, has the circular groove fitted with spherosome on the top of this cylindrical cavity simultaneously.
2. novel cutoff valve according to claim 1, is characterized in that: described spherosome is flexibly connected with between valve rod, and can carry out 360 ° of rotations.
3. novel cutoff valve according to claim 1, is characterized in that: described support is connected by divided ring with between valve body, and is tightened fixing by Cock screw.
4. novel cutoff valve according to claim 3, it is characterized in that: the linkage structure between described support and valve body is specially: there is in the upper end of valve body the circle shape groove A that an appearance divided ring embeds there is a circle shape groove B corresponding with divided ring on support simultaneously.
CN201410651157.0A 2014-11-17 2014-11-17 Novel stop valve Pending CN104405895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410651157.0A CN104405895A (en) 2014-11-17 2014-11-17 Novel stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410651157.0A CN104405895A (en) 2014-11-17 2014-11-17 Novel stop valve

Publications (1)

Publication Number Publication Date
CN104405895A true CN104405895A (en) 2015-03-11

Family

ID=52643546

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410651157.0A Pending CN104405895A (en) 2014-11-17 2014-11-17 Novel stop valve

Country Status (1)

Country Link
CN (1) CN104405895A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747739A (en) * 2015-03-30 2015-07-01 江苏神通阀门股份有限公司 Instrument sampling valve capable of automatically updating sealing face
CN105546125A (en) * 2016-02-29 2016-05-04 应建忠 Floating spherical crown type stop valve
CN105697800A (en) * 2016-02-29 2016-06-22 应建忠 Floating spherical cap type adjusting stop valve

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773110A (en) * 1925-08-06 1930-08-19 Nat Aniline & Chem Co Inc Stop valve
CN2205893Y (en) * 1994-12-20 1995-08-23 温州市瓯海高中压阀门厂 Stop valve
CN2610177Y (en) * 2003-04-11 2004-04-07 刘海泉 High-temp. high-pressure stop valve
CN200949663Y (en) * 2006-05-15 2007-09-19 南通市电站阀门有限公司 Spherical cut-off valve with on-and-off component
CN200978969Y (en) * 2006-04-12 2007-11-21 上海亚核阀业成套有限公司 High-temperature high-pressure adjustable stop valve
CN201145043Y (en) * 2008-01-22 2008-11-05 江苏盐电阀门有限公司 Stop valve
CN202215758U (en) * 2011-08-22 2012-05-09 电建阀门有限公司 Spherical stop valve
CN203189750U (en) * 2013-03-19 2013-09-11 武汉锅炉集团阀门有限责任公司 Washing-resisting universal sealing strop valve
CN204372191U (en) * 2014-11-17 2015-06-03 南通龙源电站阀门有限公司 A kind of novel cutoff valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773110A (en) * 1925-08-06 1930-08-19 Nat Aniline & Chem Co Inc Stop valve
CN2205893Y (en) * 1994-12-20 1995-08-23 温州市瓯海高中压阀门厂 Stop valve
CN2610177Y (en) * 2003-04-11 2004-04-07 刘海泉 High-temp. high-pressure stop valve
CN200978969Y (en) * 2006-04-12 2007-11-21 上海亚核阀业成套有限公司 High-temperature high-pressure adjustable stop valve
CN200949663Y (en) * 2006-05-15 2007-09-19 南通市电站阀门有限公司 Spherical cut-off valve with on-and-off component
CN201145043Y (en) * 2008-01-22 2008-11-05 江苏盐电阀门有限公司 Stop valve
CN202215758U (en) * 2011-08-22 2012-05-09 电建阀门有限公司 Spherical stop valve
CN203189750U (en) * 2013-03-19 2013-09-11 武汉锅炉集团阀门有限责任公司 Washing-resisting universal sealing strop valve
CN204372191U (en) * 2014-11-17 2015-06-03 南通龙源电站阀门有限公司 A kind of novel cutoff valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747739A (en) * 2015-03-30 2015-07-01 江苏神通阀门股份有限公司 Instrument sampling valve capable of automatically updating sealing face
CN105546125A (en) * 2016-02-29 2016-05-04 应建忠 Floating spherical crown type stop valve
CN105697800A (en) * 2016-02-29 2016-06-22 应建忠 Floating spherical cap type adjusting stop valve
CN105697800B (en) * 2016-02-29 2017-11-10 应建忠 Floating spherical cap type adjustment type stop valve
CN105546125B (en) * 2016-02-29 2017-11-10 应建忠 Floating spherical cap type stop valve

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
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Application publication date: 20150311