CN104048057A - Novel four-eccentric oval sealing face bidirectional pressure butterfly valve - Google Patents

Novel four-eccentric oval sealing face bidirectional pressure butterfly valve Download PDF

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Publication number
CN104048057A
CN104048057A CN201410251846.2A CN201410251846A CN104048057A CN 104048057 A CN104048057 A CN 104048057A CN 201410251846 A CN201410251846 A CN 201410251846A CN 104048057 A CN104048057 A CN 104048057A
Authority
CN
China
Prior art keywords
valve
sealing
oval
butterfly
butterfly plate
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
CN201410251846.2A
Other languages
Chinese (zh)
Inventor
董侠均
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 LOTOKE VALVE CO Ltd
Original Assignee
JIANGSU LOTOKE 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 LOTOKE VALVE CO Ltd filed Critical JIANGSU LOTOKE VALVE CO Ltd
Priority to CN201410251846.2A priority Critical patent/CN104048057A/en
Publication of CN104048057A publication Critical patent/CN104048057A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/16Lift 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 pivoted closure-members
    • F16K1/18Lift 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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift 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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/16Lift 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 pivoted closure-members
    • F16K1/18Lift 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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift 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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • F16K1/2263Shaping or arrangements of the sealing the sealing being arranged on the valve seat

Abstract

The invention relates to a novel four-eccentric oval sealing face bidirectional pressure butterfly valve. The butterfly valve comprises a valve body, a movable valve seat, a butterfly plate and a valve rod, wherein the valve body comprises a valve runner which is provided with a horizontally extending valve runner central line, the movable valve seat is mounted in the valve body, the butterfly plate is fixedly connected with the lower end of the valve rod, the movable valve seat is located at one side of the butterfly plate which is provided with a movable sealing ring, the sealing ring is fixed on the butterfly plate through a butterfly plate pressing ring, the movable valve seat is internally provided with a valve seat sealing face, a sealing ring sealing face which is matched with the valve seat sealing face to form a sealing pair for sealing the valve is arranged on the circumference of the movable sealing ring, the sealing pair is an oval sealing pair, the valve seat sealing face forms one part of an oblique oval cone body which is obliquely arranged relative to the valve runner central line, the valve runner central line is located below the axial central line of the oval sealing pair, and a vertex is located below the valve runner central line. The novel four-eccentric oval sealing face bidirectional pressure butterfly valve is simple in structure, friction does not exist between the sealing faces, the sealing effect is good, the novel four-eccentric oval sealing face bidirectional pressure butterfly valve is corrosion-resistant and long in service life, the area of the runner can be reduced, the reseating torque is reduced, the model selection cost of an executing mechanism is lowered, the mounting is convenient, and the centering performance is good.

Description

A kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves
Technical field
The present invention relates to a kind of Bidirectional pressure butterfly valve, relate in particular to a kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves, belong to butterfly valve field.
Background technique
In known butterfly valve technology, it is rubber, teflon, multi-level composite material etc. that its seal form adopts sealing configuration sealing material more at present.Due to the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the bad working environments such as resistance to wear.The hard sealed valve of industrial High Temperature High Pressure mainly be take gate valve, stop valve as main, and this type of valve major defect is: valve is all upper and lower opening structure, and the weight of valve own is large, and cost is high, and on-the-spot installing space is large.
Current oval cone three eccentric butterfly valve has started to popularize, and can substitute above costs high, lifting type cut-off valve, oval cone three eccentric butterfly valve, sealed section area is larger, and required essential specific pressure increases, close moment and also just increase, the also increase accordingly of drive unit.It is poor that oval sealing width is installed centering, installs more loaded down with trivial details.
Summary of the invention
For above-mentioned defect, the object of the present invention is to provide a kind of simple in structure, nothing friction between sealing surface, good sealing effect, corrosion-resistant, a kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves of long service life, can reduce Flow area, reduce closing torque, reduce actuator's type selecting cost, and easy for installation, centering is good.
The technical solution adopted in the present invention is for this reason:
Comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval cone and oval bottom surface minor axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line is positioned at oval sealing pair longitudinal center line below, described summit is positioned at valve flowing channel center line below.
Described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
Described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland lower end.
Described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland lower end.
Advantage of the present invention is:
The present invention is simple in structure, nothing friction between sealing surface, and good sealing effect, corrosion-resistant, long service life, can reduce Flow area, reduces closing torque, reduces actuator's type selecting cost, and easy for installation, and centering is good.
Accompanying drawing explanation
Fig. 1, Fig. 2, Fig. 3 are structural representations of the present invention.
In figure, 1 is valve body, the 2nd, movable valve seat, the 3rd, dish plate, the 4th, valve rod, the 5th, valve flowing channel center line, the 6th, loose gland, the 7th, butterfly plate pressure ring, the 8th, oval sealing pair longitudinal center line.
Embodiment
A kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves, comprise valve body 1, movable valve seat 2, butterfly plate 3 and valve rod 4, valve body 1 comprises the valve flowing channel with horizontally extending valve flowing channel center line 5, movable valve seat 2 is installed in valve body 1, butterfly plate 3 is fixedly connected with valve rod 4 lower ends, movable valve seat 2 is positioned at butterfly plate 3 one sides, butterfly plate 3 is provided with loose gland 6, loose gland 6 is fixed on butterfly plate 3 by butterfly plate pressure ring 7, in movable valve seat 2, be provided with sealing surface of seat, on loose gland 6 circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative these valve flowing channel center line 5 deflections, the triangular-section that summit in described tilting oval cone and oval bottom surface minor axis thereof coexist is coplanar with described valve flowing channel center line 5 and vertical with these valve rod 4 axis, valve flowing channel center line 5 is positioned at oval sealing pair longitudinal center line 8 belows, described summit is positioned at valve flowing channel center line 5 belows.
Described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line 5 and described triangular-section and loose gland 6 lower ends.
Described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland 6 lower ends.
Described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland 6 lower ends.

Claims (4)

1. novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves, comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, it is characterized in that, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval cone and oval bottom surface minor axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line is positioned at oval sealing pair longitudinal center line below, described summit is positioned at valve flowing channel center line below.
2. a kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves according to claim 1, is characterized in that, described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
3. a kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves according to claim 1, is characterized in that, described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland lower end.
4. a kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves according to claim 1, is characterized in that, described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland lower end.
CN201410251846.2A 2014-06-09 2014-06-09 Novel four-eccentric oval sealing face bidirectional pressure butterfly valve Pending CN104048057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410251846.2A CN104048057A (en) 2014-06-09 2014-06-09 Novel four-eccentric oval sealing face bidirectional pressure butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410251846.2A CN104048057A (en) 2014-06-09 2014-06-09 Novel four-eccentric oval sealing face bidirectional pressure butterfly valve

Publications (1)

Publication Number Publication Date
CN104048057A true CN104048057A (en) 2014-09-17

Family

ID=51501285

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410251846.2A Pending CN104048057A (en) 2014-06-09 2014-06-09 Novel four-eccentric oval sealing face bidirectional pressure butterfly valve

Country Status (1)

Country Link
CN (1) CN104048057A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987093A (en) * 2015-03-16 2016-10-05 斯凯孚公司 Bearing comprising a wear race
CN106763822A (en) * 2016-12-14 2017-05-31 重庆理工大学 A kind of four eccentric-butterfly-valves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987093A (en) * 2015-03-16 2016-10-05 斯凯孚公司 Bearing comprising a wear race
CN106763822A (en) * 2016-12-14 2017-05-31 重庆理工大学 A kind of four eccentric-butterfly-valves

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C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140917

WD01 Invention patent application deemed withdrawn after publication