CN210318549U - High-temperature-resistant metal sealing triple eccentric butterfly valve - Google Patents
High-temperature-resistant metal sealing triple eccentric butterfly valve Download PDFInfo
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- CN210318549U CN210318549U CN201921171826.9U CN201921171826U CN210318549U CN 210318549 U CN210318549 U CN 210318549U CN 201921171826 U CN201921171826 U CN 201921171826U CN 210318549 U CN210318549 U CN 210318549U
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Abstract
The utility model discloses a high temperature resistant metal sealing triple offset butterfly valve, including valve base, valve body, valve rod and valve plate, become triple offset structure between valve body, valve rod and the valve plate three, the top fixed mounting of valve base has the valve body, set up the valve port of horizontal setting on the valve body, set up the valve plate in the valve port, the vertical downthehole rotation of valve body installs the valve rod, the valve rod passes through locating pin and valve plate fixed mounting, the valve plate has the sealing ring through clamping ring fixed mounting, the cover is equipped with the bearing on the valve rod at upper and lower both ends of valve plate, install the packing pad in the valve body at valve plate top, install the packing in the valve body; the utility model has the advantages of reasonable and simple structure, the sealing ring on the valve plate can break away from rapidly or remove the sealed face of valve body, reduces the operation moment of torsion, and the operation is more laborsaving light, and the sealing ring adopts the stainless steel preparation, has good sealing performance, increases the life of the sealed face of butterfly valve, and the valve body of double-deck setting improves the high temperature resistance of butterfly valve.
Description
Technical Field
The utility model relates to a butterfly valve, in particular to three eccentric butterfly valves of high temperature resistant metal seal belongs to butterfly valve technical field.
Background
Three eccentric butterfly valves: 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, so the valve rod is called a triple eccentric butterfly valve and the triple eccentric butterfly valve, and is widely used for industrial pipelines with medium temperature less than or equal to 425 ℃ such as metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and the like, and used as a flow regulating and flow carrying and breaking body, but the sealing performance of the existing triple eccentric butterfly valve is poor due to the influence of factors such as abrasion, aging, expansion with heat and contraction with cold of a sealing ring on the butterfly valve, the service life of the butterfly valve is influenced, and the practicability is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide the sealed triple offset butterfly valve of high temperature resistant metal.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model discloses three eccentric butterfly valves of high temperature resistant metal seal, including valve base, valve body, valve rod and valve plate, become three eccentric structure between valve body, valve rod and the valve plate three, the top fixed mounting of valve base has the valve body, set up the valve port of horizontal setting on the valve body, set up the valve plate in the valve port, the valve rod is installed to the vertical downthehole rotation of valve body, the valve rod passes through locating pin and valve plate fixed mounting, the valve plate has the sealing ring through clamping ring fixed mounting, the cover is equipped with the bearing on the valve rod at upper and lower both ends of valve plate, install the packing pad in the valve body at valve plate top, install the filler in the valve body at packing pad top, gland is installed at the top of filler, gland's top installs the packing board, the top fixed mounting of valve.
As a preferred technical scheme of the utility model, the valve body includes outer insulating layer and interior heat-conducting layer, the valve body adopts double-deck setting, just the valve body outside is outer insulating layer, be formed with sealed intermediate layer between outer insulating layer and the interior heat-conducting layer, the inlet has been seted up to the upper end of outer insulating layer one side, the liquid outlet has been seted up to the lower extreme of outer insulating layer one side.
As an optimal technical scheme of the utility model, the sealing ring adopts the stainless steel preparation, the valve body adopts build-up welding cobalt base carbide to make.
As an optimized technical scheme of the utility model, install the dust ring between bearing and the sealing ring.
As an optimal technical scheme of the utility model, through hexagon socket head cap screw fixed mounting between clamping ring and the valve plate.
The utility model provides a high temperature resistant metal seals three eccentric butterfly valves. Compared with the prior art, the method has the following beneficial effects:
1. this high temperature resistant metal seal three eccentric butterfly valve, simple structure, convenient to use becomes three eccentric structure between the valve body of butterfly valve, valve rod and the valve plate three, friction when can reducing the switch between the sealing ring on the valve plate and the sealed face of valve body can make three eccentric butterfly valves when opening or closing, and the sealing ring on the valve plate can break away from rapidly or relieve the sealed face of valve body, has reduced the operating torque, and the operation is more laborsaving light, has increased the sealed life of face of butterfly valve.
2. This sealed three eccentric butterfly valves of high temperature resistant metal, through the valve body that adopts double-deck setting, be formed with the intermediate layer between outer insulating layer and the interior heat-conducting layer, improve the heat-proof quality of butterfly valve body, inlet and liquid outlet have been seted up on outer insulating layer simultaneously, can pour into the condensate into and be used for the butterfly valve cooling in the intermediate layer of valve body, improve the high temperature resistance of butterfly valve, and the sealing ring adopts the stainless steel preparation, no matter under the condition of low temperature and high temperature, all have good sealing performance, it is corrosion-resistant to have, characteristics such as long service life, the practicality is stronger.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the utility model at a;
fig. 3 is a schematic structural view of the valve body of the present invention;
fig. 4 is a schematic diagram of the external structure of the present invention.
In the figure: 1. a valve base; 2. a valve body; 21. an outer insulating layer; 22. an inner heat conducting layer; 23. an interlayer; 24. a liquid inlet; 25. a liquid outlet; 3. a valve stem; 4. positioning pins; 5. a valve plate; 6. pressing a ring; 7. a seal ring; 8. a dust ring; 9. a hexagon socket head cap screw; 10. a bearing; 11. a filler pad; 12. a filler; 13. a packing gland; 14. a packing press plate; 15. and (7) connecting the shafts.
Detailed description of the preferred embodiments
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Examples
As shown in fig. 1-4, the high temperature resistant metal sealed triple offset butterfly valve comprises a valve base 1, a valve body 2, a valve rod 3 and a valve plate 5, wherein a triple offset structure is formed among the valve body 2, the valve rod 3 and the valve plate 5, the top of the valve base 1 is fixedly provided with the valve body 2, the valve body 2 is provided with a transversely arranged valve port, the valve plate 5 is arranged in the valve port, the valve rod 3 is rotatably arranged in a longitudinal hole of the valve body 2, the valve rod 3 is fixedly arranged with the valve plate 5 through a positioning pin 4, the valve plate 5 is fixedly provided with a sealing ring 7 through a pressing ring 6, the valve rod 3 at the upper and lower ends of the valve plate 5 is sleeved with a bearing 10, a packing pad 11 is arranged in the valve body 2 at the top of the valve plate 5, a packing 12 is arranged in the valve body 2 at the top of the packing pad 11, a packing gland 13, the top of the valve rod 3 is fixedly provided with a connecting shaft 15.
The working principle is as follows: when the utility model is used, the top of the butterfly valve is provided with the executing structure, the executing mechanism is connected with the valve rod 3 through the connecting shaft 15 to drive the valve rod 3 to rotate the valve plate 5, the valve plate surface on the valve plate 5 and the valve body 2 form a sealing surface, thereby the medium adjusting and cutting-off effect can be achieved under high pressure difference, the valve body 2, the valve rod 3 and the valve plate 5 of the butterfly valve form a three-eccentric structure, the friction between the sealing ring 7 on the valve plate 5 and the sealing surface of the valve body 2 can be reduced when the three-eccentric butterfly valve is opened or closed, the sealing ring 7 on the valve plate 5 can be rapidly separated from or removed from the sealing surface of the valve body 2, the operation torque is reduced, the operation is more labor-saving and light, and the sealing ring 7 is made of stainless steel, no matter under the conditions of low temperature and high temperature, the butterfly valve has excellent sealing, valve body 2 of butterfly valve adopts double-deck setting, be formed with intermediate layer 23 between outer insulating layer 21 and the interior heat-conducting layer 22, improve butterfly valve body 2's heat-proof quality, inlet 24 and liquid outlet 25 have been seted up on outer insulating layer 21 simultaneously, inlet 24 passes through the pipeline and is connected with the output of circulating pump, the input of circulating pump passes through the pipeline and is connected with the condensate tank, liquid outlet 25 passes through the pipeline and is connected with the condensate tank, can pour into the condensate circulation and be used for the butterfly valve cooling in valve body 2's intermediate layer 23, improve the high temperature resistance of butterfly valve, the practicality is stronger.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. High temperature resistant metal seal three eccentric butterfly valve, its characterized in that: the valve comprises a valve base (1), a valve body (2), a valve rod (3) and a valve plate (5), wherein a triple eccentric structure is formed among the valve body (2), the valve rod (3) and the valve plate (5), the valve body (2) is fixedly installed at the top of the valve base (1), a transverse valve port is formed in the valve body (2), the valve plate (5) is arranged in the valve port, the valve rod (3) is rotatably installed in a longitudinal hole of the valve body (2), the valve rod (3) is fixedly installed with the valve plate (5) through a positioning pin (4), a sealing ring (7) is fixedly installed on the valve plate (5) through a pressing ring (6), bearings (10) are sleeved on the valve rod (3) at the upper end and the lower end of the valve plate (5), a packing pad (11) is installed in the valve body (2) at the top of the valve plate (5), and a packing (12) is installed in, the packing gland (13) is installed at the top of the packing (12), the packing pressure plate (14) is installed at the top of the packing gland (13), and the connecting shaft (15) is fixedly installed at the top of the valve rod (3).
2. The high temperature resistant metal seal triple offset butterfly valve of claim 1, wherein: the valve body (2) includes outer insulating layer (21) and interior heat-conducting layer (22), valve body (2) adopt double-deck setting, just valve body (2) outside is outer insulating layer (21), be formed with sealed intermediate layer (23) between outer insulating layer (21) and interior heat-conducting layer (22), inlet (24) have been seted up to the upper end of outer insulating layer (21) one side, liquid outlet (25) have been seted up to the lower extreme of outer insulating layer (21) one side.
3. The high temperature resistant metal seal triple offset butterfly valve of claim 1, wherein: the sealing ring (7) is made of stainless steel, and the valve body (2) is made of cobalt-based hard alloy through surfacing welding.
4. The high temperature resistant metal seal triple offset butterfly valve of claim 1, wherein: and a dustproof ring (8) is arranged between the bearing (10) and the sealing ring (7).
5. The high temperature resistant metal seal triple offset butterfly valve of claim 1, wherein: the pressing ring (6) and the valve plate (5) are fixedly installed through an inner hexagon bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171826.9U CN210318549U (en) | 2019-07-24 | 2019-07-24 | High-temperature-resistant metal sealing triple eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171826.9U CN210318549U (en) | 2019-07-24 | 2019-07-24 | High-temperature-resistant metal sealing triple eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318549U true CN210318549U (en) | 2020-04-14 |
Family
ID=70125477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921171826.9U Active CN210318549U (en) | 2019-07-24 | 2019-07-24 | High-temperature-resistant metal sealing triple eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318549U (en) |
-
2019
- 2019-07-24 CN CN201921171826.9U patent/CN210318549U/en active Active
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