CN212318804U - Butt clamp type fluorine lining butterfly valve - Google Patents
Butt clamp type fluorine lining butterfly valve Download PDFInfo
- Publication number
- CN212318804U CN212318804U CN202020830285.2U CN202020830285U CN212318804U CN 212318804 U CN212318804 U CN 212318804U CN 202020830285 U CN202020830285 U CN 202020830285U CN 212318804 U CN212318804 U CN 212318804U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- fluorine
- seat
- auxiliary
- 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.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
A pair of clamp type lining fluorine butterfly valve, involve the butterfly valve technical field of the fluid control of the pipeline, solve the existing lining fluorine butterfly valve to the sealed anticorrosion of the place of the rotating shaft has technical deficiency, including upper valve block, lower valve block, valve plate, main valve stick and sub-valve stick; the fluorine lining layers at the top and the bottom of the valve plate are in sealing fit with the fluorine lining sleeve, and the fluorine lining layer outside the valve plate comprises an upper fluorine lining layer isolation sleeve which extends into a main valve rod channel and is sleeved on the main valve rod; the upper inner edge is hermetically sleeved outside the upper fluorine lining layer isolation sleeve, and is hermetically attached to the upper fluorine lining layer isolation sleeve under the action of the elasticity of an upper spring so as to prevent a medium from passing between the upper inner edge and the upper fluorine lining layer isolation sleeve; therefore, the main valve rod and the auxiliary valve rod can be better isolated and protected, better leakage prevention can be realized, the main valve rod and the auxiliary valve rod can be effectively prevented from being corroded, and the service life of the conventional fluorine-lined butterfly valve is prolonged.
Description
Technical Field
The utility model relates to pipeline fluid control's butterfly valve technical field, concretely relates to in the aspect of the seal structure improvement of lining fluorine butterfly valve.
Background
The butterfly plate of the fluorine-lined butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped valve plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped valve plate rotates to 90 degrees, the valve is in a full-open state. The method is widely applied to various fields such as petroleum, chemical industry, metallurgy, hydropower and the like. The lining material of the fluorine-lined butterfly valve is fluoroplastic and is used for isolating the erosion corrosion of strong base organic solvents with various concentrations, other corrosive gases and liquid media conveyed on a pipeline to a valve body and a valve plate.
Because the disc valve plate needs to rotate around the axis, therefore, the seal structure of the department of rotation axis not only need prevent leaking, still need the anticorrosion, and the seal structure of current butterfly valve mainly is mainly preventing leaking, neglects or handles to prevent corrosion and pay attention to inadequately, influences product life.
SUMMERY OF THE UTILITY MODEL
To sum up, the utility model aims to solve the technical problem of the existing fluorine-lined butterfly valve that the sealing and corrosion prevention of the rotating shaft are not enough, and provides a butt clamp type fluorine-lined butterfly valve.
For solving the technical problem of the utility model, the technical scheme of adoption is:
a kind of opposite-clamping type lining fluorine butterfly valve, including upper valve block, lower valve block, valve plate, main valve stick and sub-valve stick; the main valve rod and the auxiliary valve rod are respectively matched and connected with the upper side edge and the lower side edge of the valve plate, a main valve rod channel corresponding to the main valve rod is arranged on the upper valve body, an auxiliary valve rod mounting seat corresponding to the auxiliary valve rod is arranged on the inner side of the lower valve body, the upper valve body and the lower valve body are locked and fixed, the valve plate is arranged in a cavity formed by the upper valve body and the lower valve body, a fluorine lining sleeve is arranged in the cavity, and a fluorine lining layer with the thickness larger than 3 mm is arranged outside the valve plate; the method is characterized in that: the fluorine lining layers at the top and the bottom of the valve plate are in sealing fit with the fluorine lining sleeve, and the fluorine lining layer outside the valve plate comprises an upper fluorine lining layer isolation sleeve which extends into a main valve rod channel and is sleeved on the main valve rod; the upper valve seat rubber gasket is in a conical structure with a small upper part and a big lower part, and a secondary upper sealing ring is sleeved outside the upper valve seat rubber gasket and is arranged between the upper valve seat rubber gasket and the inner wall of the main valve rod channel and tightly sleeved with the upper valve seat rubber gasket through a chamfer; the main valve rod is hermetically sleeved with an upper shaft sealing gasket, the upper shaft sealing gasket is positioned above the secondary upper sealing ring, and the upper shaft sealing gasket is also of a conical structure with a small upper part and a large lower part; an annular upper spring seat pressed above the upper shaft sealing gasket and the secondary upper sealing ring is further arranged in the main valve rod channel, an inner-contracting upper step is arranged on the inner wall of the main valve rod channel and above the annular upper spring seat, and an upper spring is arranged between the inner-contracting upper step and the annular upper spring seat.
As to the technical scheme of the utility model for further limiting includes:
the fluorine lining layer outside the valve plate comprises a lower fluorine lining layer isolation sleeve which extends into a shaft hole of the auxiliary valve rod mounting seat and is sleeved on the auxiliary valve rod; the lower valve seat rubber gasket is in a conical structure with a large upper part and a small lower part, and is sleeved outside the lower valve seat rubber gasket in a joint manner, and the secondary lower sealing ring is arranged outside the lower valve seat rubber gasket and is arranged between the lower valve seat rubber gasket and the inner wall of the shaft hole of the auxiliary valve rod mounting seat and tightly sleeved with the lower valve seat rubber gasket through a chamfer; the upper sealing sleeve of the auxiliary valve rod is connected with a lower shaft sealing gasket in a sealing way, the lower shaft sealing gasket is positioned below the secondary lower sealing ring, and the lower shaft sealing gasket is also in a conical structure with a large upper part and a small lower part; an annular lower spring seat pressed below the lower shaft sealing gasket and the secondary lower sealing ring is further arranged in the shaft hole of the auxiliary valve rod mounting seat, an inward-shrinkage lower step is arranged on the inner wall of the shaft hole of the auxiliary valve rod mounting seat and below the annular lower spring seat, and a lower spring is arranged between the inward-shrinkage lower step and the annular lower spring seat.
The main valve rod is positioned on the upper section of the upper spring and is rotationally connected with the main valve rod channel through a dry oil-free bearing.
And the section of the auxiliary valve rod positioned below the lower spring is rotatably connected with the auxiliary valve rod mounting seat through a bearing.
And a maintenance hole with the aperture smaller than the diameter of the auxiliary valve rod is arranged at the bottom of the auxiliary valve rod mounting seat.
The utility model has the advantages that: the utility model discloses outside sealed laminating between the lining fluorine layer of valve plate top and bottom and lining fluorine cover, still through lining fluorine material in along with keep apart the sealed laminating in back to make main valve stick and vice valve stick can be isolated protection better, can not only better prevent leaking, can also effectively prevent that main valve stick and vice valve stick from being corroded, prolong current lining fluorine butterfly valve life.
Drawings
Fig. 1 is a schematic front structural view of the present invention;
FIG. 2 is a schematic side sectional view of the present invention;
FIG. 3 is a schematic view of the sealing structure of the main valve rod of the present invention;
fig. 4 is a schematic view of the sealing structure at the position of the auxiliary valve rod of the present invention.
Detailed Description
The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.
Referring to fig. 1, 2 and 3, the utility model discloses a wafer-type fluorine-lined butterfly valve, which comprises an upper valve body 11, a lower valve body 12, a valve plate 2, a main valve rod 3 and an auxiliary valve rod 4; the main valve rod 3 and the auxiliary valve rod 4 are respectively matched and connected with the upper side edge and the lower side edge of the valve plate 2, a main valve rod channel corresponding to the main valve rod 3 is arranged on the upper valve body 11, an auxiliary valve rod mounting seat corresponding to the auxiliary valve rod 4 is arranged on the inner side of the lower valve body 12, and the upper valve body 11 and the lower valve body 12 are locked and fixed to form a cylindrical channel. In the assembling process, before the upper valve body 11 and the lower valve body 12 are locked and fixed, the main valve rod 3 and the auxiliary valve rod 4 are firstly matched and connected with the upper side edge and the lower side edge of the valve plate 2 respectively, then the main valve rod 3 is installed in a main valve rod channel, the auxiliary valve rod 4 is installed in an auxiliary valve rod installation seat, and after the assembling is completed, the valve plate 2 is also arranged in a cavity formed by the upper valve body 11 and the lower valve body 12, namely a cylindrical channel. In order to avoid being corroded by the medium of flowing through, prolong current lining fluorine butterfly valve life, the utility model discloses not only be equipped with lining fluorine cover 5 inside the cavity, 2 outsides of valve plate are equipped with thickness and are greater than 3 mm's lining fluorine layer 6, the lining fluorine layer 6 of valve plate 2 top and bottom and lining fluorine cover 5 between sealed laminating, the utility model discloses the improvement scheme is including: the fluorine lining layer 6 outside the valve plate 2 comprises an upper fluorine lining layer isolation sleeve 61 which extends into the main valve rod channel and is sleeved on the main valve rod 3; the fluorine lining sleeve 5 comprises an upper inner edge 51 extending towards the main valve rod channel, the upper inner edge 51 is hermetically sleeved outside the upper fluorine lining layer isolation sleeve 61, an upper valve seat rubber gasket 7 is arranged between the inner wall of the main valve rod channel and the upper inner edge 51, the upper valve seat rubber gasket 7 is attached to and sleeved on the outer wall of the upper inner edge 51, the upper valve seat rubber gasket 7 is of a conical structure with a small upper part and a large lower part, a secondary upper sealing ring 8 is sleeved outside the upper valve seat rubber gasket 7, and the secondary upper sealing ring 8 is arranged between the upper valve seat rubber gasket 7 and the inner wall of the main valve rod channel and is tightly pressed and sleeved with the upper valve seat rubber gasket 7 through a chamfer; the main valve rod 2 is hermetically sleeved with an upper shaft sealing gasket 9, the upper shaft sealing gasket 9 is positioned above the secondary upper sealing ring 8, and the upper shaft sealing gasket 9 is also of a conical structure with a small upper part and a big lower part; an annular upper spring seat 10 pressed above the upper shaft sealing gasket 9 and the secondary upper sealing gasket 8 is further arranged in the main valve rod channel, an inward-contracting upper step 111 is arranged on the inner wall of the main valve rod channel and above the annular upper spring seat 10, an upper spring 12 is arranged between the inward-contracting upper step 111 and the annular upper spring seat 10, and the upper spring 12 is preferably a butterfly spring.
That is, under the action of the elastic force of the upper spring 12, the annular upper spring seat 10 is applied with an elastic force downwards, the annular upper spring seat 10 simultaneously applies a downwards acting force to the upper shaft sealing gasket 9 and the secondary upper sealing ring 8, and the upper shaft sealing gasket 9 is sealed with the outer wall of the main valve rod 3 under the action of the outer inclined surface to prevent medium leakage; the secondary upper sealing ring 8 and the upper valve seat rubber gasket 7 obliquely push the upper valve seat rubber gasket 7 in the axial direction, so that the upper inner edge 51 is in sealing fit with the upper fluorine lining layer isolation sleeve 61, and a medium is prevented from passing between the upper inner edge 51 and the upper fluorine lining layer isolation sleeve 61.
Similarly, referring to fig. 4, the fluorine-lined layer 6 outside the valve plate 2 includes a lower fluorine-lined layer isolation sleeve 61' extending into the shaft hole of the sub-valve rod mounting seat and sleeved on the sub-valve rod 4; the fluorine lining sleeve 5 comprises a lower inner edge 51 ' extending into the auxiliary valve rod mounting seat, the lower inner edge 51 ' is hermetically sleeved outside the lower fluorine lining layer isolation sleeve 61 ', a lower valve seat rubber gasket 7 ' is arranged between the inner wall of the shaft hole of the auxiliary valve rod mounting seat and the lower inner edge 51 ', the lower valve seat rubber gasket 7 ' is attached to and sleeved on the outer wall of the lower inner edge 51 ', the lower valve seat rubber gasket 7 ' is of a conical structure with a large upper part and a small lower part, a secondary lower sealing ring 8 ' is sleeved outside the lower valve seat rubber gasket 7 ', and the secondary lower sealing ring 8 ' is arranged between the lower valve seat rubber gasket 7 ' and the inner wall of the shaft hole of the auxiliary valve rod mounting seat and is tightly sleeved with the lower valve seat rubber gasket 7 ' through a chamfer; the auxiliary valve rod 4 is hermetically sleeved with a lower shaft sealing gasket 9 ', the lower shaft sealing gasket 9' is positioned below the secondary lower sealing ring 8 ', and the lower shaft sealing gasket 9' is also of a conical structure with a large upper part and a small lower part; an annular lower spring seat 10 'pressed below the lower shaft sealing gasket 9' and the secondary lower sealing ring 8 'is further arranged in the shaft hole of the auxiliary valve rod 4 mounting seat, an inward-contracting lower step 121 is arranged on the inner wall of the shaft hole of the auxiliary valve rod mounting seat and below the annular lower spring seat 10', and a lower spring 12 'is arranged between the inward-contracting lower step 121 and the annular lower spring seat 10'.
Compared with the prior art, the utility model discloses still be in main valve stick 3 on be located the upper spring 12 top district section on and rotate with the main valve stick passageway through dry-type no oil feed bearing 13 and be connected. The section of the auxiliary valve rod 4 below the lower spring 12' is rotatably connected with the auxiliary valve rod mounting seat through a bearing 14. The bottom of the auxiliary valve rod mounting seat is provided with a maintenance hole 122 with the aperture smaller than the diameter of the auxiliary valve rod, and the auxiliary valve rod 4 can be subjected to oil injection maintenance through the maintenance hole 122.
Claims (5)
1. A kind of opposite-clamping type lining fluorine butterfly valve, including upper valve block, lower valve block, valve plate, main valve stick and sub-valve stick; the main valve rod and the auxiliary valve rod are respectively matched and connected with the upper side edge and the lower side edge of the valve plate, a main valve rod channel corresponding to the main valve rod is arranged on the upper valve body, an auxiliary valve rod mounting seat corresponding to the auxiliary valve rod is arranged on the inner side of the lower valve body, the upper valve body and the lower valve body are locked and fixed, the valve plate is arranged in a cavity formed by the upper valve body and the lower valve body, a fluorine lining sleeve is arranged in the cavity, and a fluorine lining layer with the thickness larger than 3 mm is arranged outside the valve plate; the method is characterized in that: the fluorine lining layers at the top and the bottom of the valve plate are in sealing fit with the fluorine lining sleeve, and the fluorine lining layer outside the valve plate comprises an upper fluorine lining layer isolation sleeve which extends into a main valve rod channel and is sleeved on the main valve rod; the upper valve seat rubber gasket is in a conical structure with a small upper part and a big lower part, and a secondary upper sealing ring is sleeved outside the upper valve seat rubber gasket and is arranged between the upper valve seat rubber gasket and the inner wall of the main valve rod channel and tightly sleeved with the upper valve seat rubber gasket through a chamfer; the main valve rod is hermetically sleeved with an upper shaft sealing gasket, the upper shaft sealing gasket is positioned above the secondary upper sealing ring, and the upper shaft sealing gasket is also of a conical structure with a small upper part and a large lower part; an annular upper spring seat pressed above the upper shaft sealing gasket and the secondary upper sealing ring is further arranged in the main valve rod channel, an inner-contracting upper step is arranged on the inner wall of the main valve rod channel and above the annular upper spring seat, and an upper spring is arranged between the inner-contracting upper step and the annular upper spring seat.
2. The wafer-type fluorine-lined butterfly valve according to claim 1, wherein: the fluorine lining layer outside the valve plate comprises a lower fluorine lining layer isolation sleeve which extends into a shaft hole of the auxiliary valve rod mounting seat and is sleeved on the auxiliary valve rod; the lower valve seat rubber gasket is in a conical structure with a large upper part and a small lower part, and is sleeved outside the lower valve seat rubber gasket in a joint manner, and the secondary lower sealing ring is arranged outside the lower valve seat rubber gasket and is arranged between the lower valve seat rubber gasket and the inner wall of the shaft hole of the auxiliary valve rod mounting seat and tightly sleeved with the lower valve seat rubber gasket through a chamfer; the upper sealing sleeve of the auxiliary valve rod is connected with a lower shaft sealing gasket in a sealing way, the lower shaft sealing gasket is positioned below the secondary lower sealing ring, and the lower shaft sealing gasket is also in a conical structure with a large upper part and a small lower part; an annular lower spring seat pressed below the lower shaft sealing gasket and the secondary lower sealing ring is further arranged in the shaft hole of the auxiliary valve rod mounting seat, an inward-shrinkage lower step is arranged on the inner wall of the shaft hole of the auxiliary valve rod mounting seat and below the annular lower spring seat, and a lower spring is arranged between the inward-shrinkage lower step and the annular lower spring seat.
3. The wafer-type fluorine-lined butterfly valve according to claim 1, wherein: the main valve rod is positioned on the upper section of the upper spring and is rotationally connected with the main valve rod channel through a dry oil-free bearing.
4. The wafer-type fluorine-lined butterfly valve according to claim 1, wherein: and the section of the auxiliary valve rod positioned below the lower spring is rotatably connected with the auxiliary valve rod mounting seat through a bearing.
5. The wafer-type fluorine-lined butterfly valve according to claim 1, wherein: and a maintenance hole with the aperture smaller than the diameter of the auxiliary valve rod is arranged at the bottom of the auxiliary valve rod mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830285.2U CN212318804U (en) | 2020-05-18 | 2020-05-18 | Butt clamp type fluorine lining butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830285.2U CN212318804U (en) | 2020-05-18 | 2020-05-18 | Butt clamp type fluorine lining butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212318804U true CN212318804U (en) | 2021-01-08 |
Family
ID=74024115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020830285.2U Active CN212318804U (en) | 2020-05-18 | 2020-05-18 | Butt clamp type fluorine lining butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212318804U (en) |
-
2020
- 2020-05-18 CN CN202020830285.2U patent/CN212318804U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2162617A (en) | Valve stem seal | |
| CA2050101A1 (en) | Valve stem sealing means for prevention of fugitive emissions | |
| CN201129496Y (en) | Upper mounting type ball valve | |
| EP0757766A1 (en) | Butterfly valve assembly and method of manufacture | |
| JPS63500468A (en) | Closing device using ball valve | |
| CN111022695B (en) | High-temperature graphite sealing titanium alloy ball valve | |
| CN201884690U (en) | Super-high pressure flat plate gate valve | |
| CN102094987A (en) | Ultrahigh pressure flat plate gate valve | |
| US4577872A (en) | Valve stem seal with multiple ring means | |
| US4911409A (en) | Ball valve | |
| CN212318804U (en) | Butt clamp type fluorine lining butterfly valve | |
| CN107084258B (en) | Butt-clamping fluorine ball valve | |
| US4887794A (en) | Ball valve | |
| CN105402433B (en) | The external and internal pressure sealing structure of underwater ball valve | |
| US4620728A (en) | Flowline swivel with removable product seal surfaces | |
| CN212429813U (en) | Fluorine-lined ball valve | |
| CN212928822U (en) | Cock pre-tightening adjusting structure of large-diameter oil seal type plug valve | |
| CN201902573U (en) | Multipurpose eccentric soft-hard seal wafer-type butterfly valve | |
| CN206530729U (en) | A kind of valve rod leak-proof structure of ball valve under water | |
| CN219673319U (en) | High-performance fluorine-lined butterfly valve | |
| CN205001554U (en) | Ball valve | |
| CN101225885A (en) | Fluoroplastics whole lining stop valve special for alkali-chloride | |
| CN219263236U (en) | Valve rod and valve body hard seal connection structure | |
| JPH09222174A (en) | Welded ball valve | |
| CN2201531Y (en) | Full corrosion-resistant butt-clamping butterfly bamper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |