CN113653813A - Maintenance mechanism of three eccentric butterfly valve - Google Patents
Maintenance mechanism of three eccentric butterfly valve Download PDFInfo
- Publication number
- CN113653813A CN113653813A CN202111084005.3A CN202111084005A CN113653813A CN 113653813 A CN113653813 A CN 113653813A CN 202111084005 A CN202111084005 A CN 202111084005A CN 113653813 A CN113653813 A CN 113653813A
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- CN
- China
- Prior art keywords
- valve
- valve body
- plate
- seat
- maintenance
- 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.)
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Classifications
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- 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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- 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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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- 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
- F16K1/42—Valve seats
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- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a maintenance mechanism of a three-eccentric center butterfly valve, which comprises a valve body, a valve plate arranged in the valve body, a valve shaft arranged in the valve plate and penetrating through the valve body, and a valve seat arranged on the inner wall of the valve body, and is characterized in that: still including offering in the maintenance mouth of valve body, locating maintenance mouth department and install in the valve gap of valve body, connect in the four-ring opening of valve body inner wall, cross-under in the screw of four-ring opening and locate simultaneously clamp plate and valve plate seal receptacle in the valve plate. The valve seat and the valve seat cushion plate and compensation cushion combined piece can achieve the self-positioning effect after maintenance, and leakage after sealing is reduced.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a maintenance mechanism of a three-eccentric center butterfly valve.
Background
The valve rod axis deviates from the center of the disc and the center of the body at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, which is called a triple eccentric butterfly valve.
The valve seat inner leakage usually occurs when the existing three-eccentric butterfly valve is used, and because the three-eccentric butterfly valve does not have a maintenance mechanism with a reasonable structure, the existing three-eccentric butterfly valve is difficult to maintain or replace a valve on line when the valve seat is leaked, so that the normal use of the three-eccentric butterfly valve can be influenced.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art or the related art.
Therefore, the technical scheme adopted by the invention is as follows:
maintenance mechanism of three eccentric butterfly valves, place in including the valve body the valve plate of valve body, install in the valve plate and run through in the valve shaft of valve body and locating the disk seat of valve body inner wall, its characterized in that: still including offering in the maintenance mouth of valve body, locating maintenance mouth department and install in the valve gap of valve body, connect in the four-ring opening of valve body inner wall, cross-under in the screw of four-ring opening and locate simultaneously clamp plate and valve plate seal receptacle in the valve plate.
The present invention in a preferred example may be further configured to: the valve shaft is arranged on the valve seat, and the valve shaft is arranged on the valve seat.
By adopting the technical scheme, the valve seat is convenient to self-position, and the bottom of the valve seat is compressed to achieve the complete sealing effect.
The present invention in a preferred example may be further configured to: still include contradict in the valve seat backing plate of screw, valve seat backing plate laminating in the valve seat.
Through adopting above-mentioned technical scheme, be convenient for further increase compactness, reduce the condition of revealing, improve the safety when valve uses or after the change maintenance.
The present invention in a preferred example may be further configured to: the side of the valve seat adopts a double-inclined-plane structure, and the valve seat is adaptive to the valve plate sealing seat.
Through adopting above-mentioned technical scheme, be convenient for strengthen sealed effect, reduce sealed the condition of revealing, improve valve safety quality.
According to the invention, through the unique design of the maintenance mechanism, when the valve seat leaks, a worker can open the valve cover and then disassemble the maintenance mechanism part through the maintenance port, so that the design of the invention is convenient for achieving the rapidness of maintaining the valve, and the installation of the maintained valve seat and the assembly of the valve seat cushion plate and the compensation cushion can achieve the self-positioning effect, so that the valve seat and the compensation cushion can be hermetically connected in the valve plate sealing seat, and the leakage condition after sealing is reduced, therefore, the structure is convenient to replace and maintain, and can ensure the reliable sealing property.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Reference numerals:
110. a valve body; 120. a valve plate; 130. a valve shaft; 140. a valve seat; 150. a shaft sleeve; 160. a compensation pad assembly; 210. a maintenance port; 220. a valve cover; 230. opening a ring; 240. a screw; 250. pressing a plate; 260. a valve plate seal seat; 270. a valve seat backing plate; 310. Low-temperature pipe connection; 320. a filler; 330. a packing gland; 400. A shim ring.
Detailed Description
The following describes a maintenance mechanism of a triple offset butterfly valve according to an embodiment of the present invention with reference to the drawings.
Referring to fig. 1-2, the maintenance mechanism of a triple offset butterfly valve according to the present invention includes a valve body 110, a valve plate 120 built in the valve body 110, a valve shaft 130 installed in the valve plate 120 and penetrating through the valve body 110, and a valve seat 140 installed on an inner wall of the valve body 110, and further includes a maintenance opening 210 opened in the valve body 110, a valve cover 220 installed at the maintenance opening 210 and installed on the valve body 110, a four-open ring 230 connected to an inner wall of the valve body 110, a screw 240 inserted into the four-open ring 230, and a pressure plate 250 and a valve plate seal seat 260 both installed in the valve plate 120.
The maintenance mechanism of the three-eccentric butterfly valve further comprises a shaft sleeve 150 and a compensation pad assembly 160 which are respectively arranged in the valve body 110, the shaft sleeve 150 is arranged on the outer wall of the valve shaft 130, the compensation pad assembly 160 is arranged on the top end of the valve seat 140, the designed effect is favorable for self-positioning of the valve seat 140, and the compensation pad assembly 160 and the bottom of the valve seat 140 are compressed to achieve complete sealing, so that the sealing leakage condition is reduced.
The maintenance mechanism of the triple eccentric butterfly valve further comprises a valve seat cushion plate 270 abutting against the screw 240, the valve seat cushion plate 270 is attached to the valve seat 140, and the design function of the maintenance mechanism is that the valve seat cushion plate 270 enables the maintenance mechanism to be further tighter, leakage conditions are reduced, and safety of the valve during use or after replacement and maintenance is improved. The side surface of the valve seat 140 adopts a double-inclined-surface structure, the valve seat 140 is matched with the valve plate sealing seat 260, and the double-inclined-surface structure is designed to ensure that when the valve seat 140 is deformed at low temperature, the side surface of the valve seat 140 is stressed by taper, so that the sealing effect is more compact and reliable than that of a single inclined surface of a common valve, the sealing leakage condition is reduced, and the safety quality of the valve is improved. The valve further comprises a gasket ring 400 arranged at the joint of the valve body 110 and the valve cover 220, wherein the gasket ring 400 is made of 5083 materials, and the tightness of the valve body 110 can be guaranteed by matching with the installation of the valve cover 220.
The maintenance mechanism of the triple offset butterfly valve further comprises a low temperature connection pipe 310 connected to the valve body 110, a packing 320 filled in the low temperature connection pipe 310 and a packing gland 330 connected to the low temperature connection pipe 310, and the design function is that the low temperature connection pipe 310 not only adopts the packing 320, but also adopts a graphite winding pad, so that the sealing performance of the valve is improved; and the joint of the low-temperature connecting pipe 310 and the body mechanism 100 is fastened by adopting a locking gasket and a bolt, so that leakage caused by loosening of the bolt in long-term use of the valve can be reduced, close fit and non-loosening of the valve bolt can be effectively ensured, the service life of the valve is prolonged, after-sale service is reduced, and the customer satisfaction is improved.
The working principle and the using process of the invention are as follows: when the valve is exposed inside, the valve cover 220 is firstly opened, then various maintenance mechanisms 200 parts are disassembled through the maintenance port 210, so that the aim of maintaining the valve is fulfilled, the self-positioning effect can be achieved due to the installation of the valve seat gasket 270 and the compensation gasket assembly 160 after maintenance, the valve seat 140 is in sealing connection with the valve plate sealing seat 260, the leakage condition after sealing is reduced, the structure is convenient to replace and maintain, and the reliable sealing performance can be guaranteed.
Claims (4)
1. Maintenance mechanism of three eccentric butterfly valves, including valve body (110), place in valve plate (120) of valve body (110), install in valve plate (120) and run through in valve shaft (130) of valve body (110) and locate valve seat (140) of valve body (110) inner wall, its characterized in that: still including offering maintenance mouth (210) of valve body (110), locating maintenance mouth (210) department and install in valve gap (220) of valve body (110), connect in four ring opening (230) of valve body (110) inner wall, insert in screw (240) of four ring opening (230) and locate simultaneously clamp plate (250) and valve plate seal receptacle (260) in valve plate (120).
2. The maintenance mechanism of a triple offset butterfly valve according to claim 1, characterized in that: the valve shaft assembly comprises a valve body (110) and is characterized by further comprising a shaft sleeve (150) and a compensation pad assembly (160) which are arranged in the valve body (110) respectively, wherein the shaft sleeve (150) is arranged on the outer wall of the valve shaft (130), and the compensation pad assembly (160) is arranged at the top end of a valve seat (140).
3. The maintenance mechanism of a triple offset butterfly valve according to claim 1, characterized in that: the valve seat cushion plate (270) is abutted to the screw (240), and the valve seat cushion plate (270) is attached to the valve seat (140).
4. The maintenance mechanism of a triple offset butterfly valve according to claim 1, characterized in that: the side surface of the valve seat (140) adopts a double-inclined-surface structure, and the valve seat (140) is matched with the valve plate sealing seat (260).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084005.3A CN113653813A (en) | 2021-09-16 | 2021-09-16 | Maintenance mechanism of three eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084005.3A CN113653813A (en) | 2021-09-16 | 2021-09-16 | Maintenance mechanism of three eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113653813A true CN113653813A (en) | 2021-11-16 |
Family
ID=78494029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111084005.3A Withdrawn CN113653813A (en) | 2021-09-16 | 2021-09-16 | Maintenance mechanism of three eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113653813A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455972Y (en) * | 2000-12-14 | 2001-10-24 | 董侠均 | Two way sealed butterfly gate |
| CN202252009U (en) * | 2011-08-22 | 2012-05-30 | 电建阀门有限公司 | Tri-eccentric hard seal butterfly valve |
| CN103470793A (en) * | 2013-09-22 | 2013-12-25 | 浙江贝尔控制阀门有限公司 | Double-slope eccentric butterfly valve |
| CN205639652U (en) * | 2016-04-07 | 2016-10-12 | 浙江贝尔控制阀门有限公司 | Self -align low temperature butterfly valve of disk seat |
| US9976666B1 (en) * | 2016-02-10 | 2018-05-22 | Bobby New | Butterfly valve assembly |
| CN215110561U (en) * | 2021-06-04 | 2021-12-10 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
-
2021
- 2021-09-16 CN CN202111084005.3A patent/CN113653813A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455972Y (en) * | 2000-12-14 | 2001-10-24 | 董侠均 | Two way sealed butterfly gate |
| CN202252009U (en) * | 2011-08-22 | 2012-05-30 | 电建阀门有限公司 | Tri-eccentric hard seal butterfly valve |
| CN103470793A (en) * | 2013-09-22 | 2013-12-25 | 浙江贝尔控制阀门有限公司 | Double-slope eccentric butterfly valve |
| US9976666B1 (en) * | 2016-02-10 | 2018-05-22 | Bobby New | Butterfly valve assembly |
| CN205639652U (en) * | 2016-04-07 | 2016-10-12 | 浙江贝尔控制阀门有限公司 | Self -align low temperature butterfly valve of disk seat |
| CN215110561U (en) * | 2021-06-04 | 2021-12-10 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211116 |
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| WW01 | Invention patent application withdrawn after publication |