CN203963046U - The just round sealing surface Bidirectional pressure butterfly valve of one - Google Patents

The just round sealing surface Bidirectional pressure butterfly valve of one Download PDF

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Publication number
CN203963046U
CN203963046U CN201420302888.XU CN201420302888U CN203963046U CN 203963046 U CN203963046 U CN 203963046U CN 201420302888 U CN201420302888 U CN 201420302888U CN 203963046 U CN203963046 U CN 203963046U
Authority
CN
China
Prior art keywords
valve
sealing
seat
flowing channel
center line
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 - Fee Related
Application number
CN201420302888.XU
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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.)
LOTOKE INDUSTRY GROUP 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 CN201420302888.XU priority Critical patent/CN203963046U/en
Application granted granted Critical
Publication of CN203963046U publication Critical patent/CN203963046U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the just round sealing surface Bidirectional pressure butterfly valve of one, 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, sealing pair is just round sealing pair, sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, valve flowing channel center line overlaps with just round sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.The utility model 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.

Description

The just round sealing surface Bidirectional pressure butterfly valve of one
Technical field
The utility model relates to a kind of Bidirectional pressure butterfly valve, relates in particular to the just round sealing surface Bidirectional pressure butterfly valve of one, belongs 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 is mainly taking 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.
Model utility content
For above-mentioned defect, it is a kind of simple in structure that the purpose of this utility model is to provide, nothing friction between sealing surface, good sealing effect, corrosion-resistant, the just round sealing surface Bidirectional pressure butterfly valve of the one 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 technological scheme that the utility model adopts 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 just round 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 major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line overlaps with just round sealing pair longitudinal center line, 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 the horizontal line below of described triangular-section and the crossing intersection point in loose gland lower end.
Described summit is positioned on the horizontal line of described triangular-section and the crossing intersection point in loose gland lower end.
The utility model has the advantages that:
The utility model 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.
Brief description of the drawings
Fig. 1, Fig. 2, Fig. 3 are structural representations of the present utility model.
In figure, 1 is valve body, the 2nd, movable valve seat, the 3rd, and 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, is just justifying sealing pair longitudinal center line.
Embodiment
The just round sealing surface Bidirectional pressure butterfly valve of one, 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 just round 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 major 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 overlaps with just round sealing pair longitudinal center line 8, described summit is positioned at valve flowing channel center line 5 belows.
Described summit is between valve flowing channel center line 5 and described triangular-section and the horizontal line of the loose gland 6 crossing intersection points in lower end.
Described summit is positioned at the horizontal line below of described triangular-section and the loose gland 6 crossing intersection points in lower end.
Described summit is positioned on the horizontal line of described triangular-section and the loose gland 6 crossing intersection points in lower end.

Claims (4)

1. a just round sealing surface Bidirectional pressure butterfly valve, 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 just round 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 major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line overlaps with just round sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.
2. the just round sealing surface Bidirectional pressure butterfly valve of one 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. the just round sealing surface Bidirectional pressure butterfly valve of one according to claim 1, is characterized in that, described summit is positioned at below the horizontal line of described triangular-section and the crossing intersection point in loose gland lower end.
4. the just round sealing surface Bidirectional pressure butterfly valve of one according to claim 1, is characterized in that, described summit is positioned on the horizontal line of described triangular-section and the crossing intersection point in loose gland lower end.
CN201420302888.XU 2014-06-09 2014-06-09 The just round sealing surface Bidirectional pressure butterfly valve of one Expired - Fee Related CN203963046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420302888.XU CN203963046U (en) 2014-06-09 2014-06-09 The just round sealing surface Bidirectional pressure butterfly valve of one

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420302888.XU CN203963046U (en) 2014-06-09 2014-06-09 The just round sealing surface Bidirectional pressure butterfly valve of one

Publications (1)

Publication Number Publication Date
CN203963046U true CN203963046U (en) 2014-11-26

Family

ID=51923629

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420302888.XU Expired - Fee Related CN203963046U (en) 2014-06-09 2014-06-09 The just round sealing surface Bidirectional pressure butterfly valve of one

Country Status (1)

Country Link
CN (1) CN203963046U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763822A (en) * 2016-12-14 2017-05-31 重庆理工大学 A kind of four eccentric-butterfly-valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 211407, Jiangsu, Yangzhou Province, Yizheng City, Liu town Pangu Industrial Concentration Zone No. 126

Patentee after: LOTOKE INDUSTRY GROUP CO., LTD.

Address before: 211407 Liu Zhen Industrial Zone, Yangzhou, Jiangsu, Yizheng

Patentee before: Jiangsu Lotoke Valve Co., Ltd.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141126

Termination date: 20200609

CF01 Termination of patent right due to non-payment of annual fee