CN203703169U - High temperature butterfly valve - Google Patents
High temperature butterfly valve Download PDFInfo
- Publication number
- CN203703169U CN203703169U CN201320892414.0U CN201320892414U CN203703169U CN 203703169 U CN203703169 U CN 203703169U CN 201320892414 U CN201320892414 U CN 201320892414U CN 203703169 U CN203703169 U CN 203703169U
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- valve
- hole
- valve seat
- circular channel
- high temperature
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Abstract
The utility model discloses a high temperature butterfly valve, when the temperature is risen high, the gap between the outer cone slope of the valve seat of the high temperature butterfly valve and the inner cone slope of the valve clack is narrowed further, therefore the medium will not press the gap between the outer cone slope and the inner cone slope of the valve clack even if the medium that circulates in the high temperature butterfly valve is expanded because of heat, thereby maintaining good sealing continuously; a metal closing plate guarantees good hard sealing between the valve clack and the valve seat to avoid influence because of risen temperature; a dust ring in an upper through hole is made of metal material and is arranged in a laminating way, therefore the dirt resistance performance of the butterfly valve will not influenced by high temperature; when the valve stem is prolonged after being heated, the expansion of the valve stem will occur only outwardly not inwardly, therefore, no ran phenomenon will not occur, and the normal usage of the butterfly valve is guaranteed. Namely, the high temperature butterfly valve provided by the utility model is suitable for high temperature environment.
Description
Technical field
The present invention relates to valve technology field, especially relate to a kind of high temperature butterfly valve.
Background technique
Butterfly valve has become one of valve being most widely used at present.General, butterfly valve comprises valve body, valve seat, valve rod, flap.; this valve body has inner chamber; this valve seat is fixed in this valve body; this flap is arranged in this inner chamber; and this flap rotates rear its edge and valve base sealing or opens; and this valve rod is used for driving this flap to be rotated, the top of this valve rod is connected to the whirligig such as handle or final controlling element after the top through this valve body.But the residing working environment of butterfly valve is mostly comparatively severe, such as the pressure medium of many dirt, high temperature, circulation is large, medium has corrosivity etc., and the Dimensions of butterfly valve becomes greatly increasingly, thereby opened butterfly valve is very required great effort.Wherein, when butterfly valve is applied in hot environment, butterfly valve should be considered the impact after the heat-resisting and expanded by heating of parts, the performance of butterfly valve being caused.
Summary of the invention
The object of this invention is to provide a kind of high temperature butterfly valve, it has the advantages that to be adapted to use in higher temperature.
The technical solution adopted in the present invention is: high temperature butterfly valve, comprise valve body, valve seat, valve rod, flap, wherein, this valve inner has the first circular channel, this valve seat is positioned at this first circular channel, this valve seat inside has the second circular channel, this flap is positioned at this second circular channel, this flap is fixed on the middle part of this valve rod, the upper and lower of this valve body is respectively equipped with through hole and lower through-hole, the top and bottom of this valve rod are respectively through through hole and lower through-hole on this, simultaneously, the outer marginal circumference of this flap is inner cone inclined-plane, this the second circular channel inner edge circumference is the outer cone inclined-plane identical with this inner cone inclined-plane true dip direction,
An end face of described the first circular channel is provided with the step extending internally, on another end face, be fixed with annular cover plate by screw, and the circumferential surface of this first circular channel is provided with at least 3 trends and is same as the chute of the shaft axis of this first circular channel, this valve seat is stuck between this step and this annular cover plate, the thickness of this valve seat is less than the spacing of this step and this annular cover plate, the outer marginal circumference surface of this valve seat is provided with and this chute pit of correspondence between two, in this chute and this pit, card has ball, thereby the external diameter of this valve seat is less than between the outer rim of this valve seat of internal diameter of this first circular channel and the sidewall of this first circular channel and has gap, simultaneously, between the end face of this valve seat and this step, connect by a bellows, this bellows has exterior notch and the inside inner tank mouths of opening of outward opening, and this exterior notch is communicated with this gap,
Described inner cone inclined-plane is provided with inner card cage, and in this inner card cage, card has at least 2 layers of metal sealing plate, and this outer cone inclined-plane is provided with the wearing layer that adopts the material that is same as this metal sealing plate to prepare;
The oral area of described upper through hole be provided with and on this through hole coaxial inner conductor upper circular groove and on this, on through hole, be bolted with collar, at least 3 layers of dust ring that are provided with metallic material preparation in this circular groove and are superimposed, and being enclosed within on this valve rod of this dust ring transition fit, and this dust ring is spacing by this collar institute;
The sidewall of described lower through-hole is provided with screw, in this screw, be bolted with stop screw, the annular restraining groove that the bottom of this valve rod is provided with and this screw matches, the inner of this stop screw withstands in this restraining groove, the lower wall close contact of this stop screw and this restraining groove, and the width of this restraining groove is greater than the external diameter of this stop screw, and the oral area of this lower through-hole is bolted with sealing cover.
The axle center place of described sealing cover is provided with positioning pit, and the lower end of this valve rod is inserted in this positioning pit.
The advantage that the present invention has is: be adapted to use in higher temperature.After temperature raises, the gap on the inner cone inclined-plane on outer cone inclined-plane and flap on the valve seat of high temperature butterfly valve of the present invention can further dwindle, even if thereby be heated and expanding at the medium of this high temperature butterfly valve of circulation, in the gap on inner cone inclined-plane that this medium also can be from this outer cone inclined-plane and flap, pressed, thereby can continue to keep good sealing; This metal sealing plate makes to have preferably and firmly seal between this flap and valve seat, thereby can not be subject to the impact that temperature improves; The dust ring having in upper through hole also adopts metallic material and adopts stacked layout, thereby the anti-dust performance of this butterfly valve can not be subject to temperatures involved; This valve rod be heated elongated after, the expansion of this valve rod only can outwards be carried out and can inwardly not carry out, and then there will not be play phenomenon, has guaranteed the normal use of this butterfly valve., high temperature butterfly valve of the present invention is adapted to use in hot environment completely.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is that the master of embodiments of the invention looks sectional view (not shown hatching);
Fig. 2 is that A-A of Fig. 1 is to view (not shown hatching);
Fig. 3 is the B portion enlarged view of Fig. 1;
Fig. 4 is the C portion enlarged view of Fig. 1;
Fig. 5 is the D portion enlarged view of Fig. 2.
In figure: 10, valve body, 11, the first circular channel, 111, step, 112, annular cover plate, 113, chute, 114, gap, 121, upper through hole, 1211, upper circular groove, 1212, collar, 1213, dust ring, 122, lower through-hole, 1221, screw, 1222, stop screw, 1223, sealing cover, 12231, positioning pit; 20, valve seat, 21, the second circular channel, 22, outer cone inclined-plane, 221, wearing layer, 23, pit, 24, ball; 30, valve rod, 31, restraining groove; 40, flap, 41, inner cone inclined-plane, 411, inner card cage, 412, metal sealing plate; 50, bellows, 51, exterior notch, 52, inner tank mouths.
Embodiment
Embodiment, is shown in shown in Fig. 1 and Fig. 2, and high temperature butterfly valve comprises valve body 10, valve seat 20, valve rod 30, flap 40.
As shown in Figure 5, these valve body 10 inside have the first circular channel 11, and this valve seat 20 is positioned at this first circular channel 11.These valve seat 20 inside have the second circular channel 21, and this flap 40 is positioned at this second circular channel 21.This flap 40 is fixed on the middle part of this valve rod 30.The upper and lower of this valve body 10 is respectively equipped with through hole 121 and lower through-hole 122, and the top and bottom of this valve rod 30 are respectively through through hole 121 and lower through-hole 122 on this.Meanwhile, the outer marginal circumference of this flap 40 is inner cone inclined-plane 41, and these the second circular channel 21 inner edge circumference are the outer cone inclined-plane 22 identical with these inner cone inclined-plane 41 true dip directions.Further say, an end face of this first circular channel 11 is provided with on the step 111 that extends internally, another end face and is fixed with annular cover plate 112 by screw, and the circumferential surface of this first circular channel 11 is provided with at least 3 trends and is same as the chute 113 of the shaft axis of this first circular channel 11.This valve seat 20 is stuck between this step 111 and this annular cover plate 112, and the thickness of this valve seat 20 is less than the spacing of this step 111 and this annular cover plate 112., this valve seat 20 can carry out translation along the direction of axis line of this first circular channel 11.The outer marginal circumference surface of this valve seat 20 is provided with and this chute 113 corresponding pit 23 between two, in this pit 23, is provided with ball 24, and this roller 24 is stuck in this pit 23 and the chute 113 corresponding with this pit 23.Thereby the external diameter of this valve seat 20 is less than between the outer rim of this valve seat 20 of internal diameter of this first circular channel 11 and the sidewall of this first circular channel 11 and has gap 114.That is to say, this valve seat 20 is equivalent in state of suspension in this first circular channel 11.Meanwhile, this valve seat 20 is more close between the end face of this step 111 and this step 111 and connects by a bellows 50, and this bellows 50 has exterior notch 51 and the inside inner tank mouths 52 of opening of outward opening, and this exterior notch 51 is communicated with these gaps 114.Certainly, this inner tank mouths 52 is communicated with the inner space of this first circular channel 11.Like this, after the medium passing through in this butterfly valve expands under the condition of high temperature, no matter which side of this medium in this flap 40, this medium or enter in the exterior notch 51 of this bellows 50 by this gap 114 or directly enter in this inner tank mouths 52, thereby all can make the width of this bellows 50 increase, and then the gap between this outer cone inclined-plane 22 and this inner cone inclined-plane 41 after valve seat 20 translations is diminished, the sealing effect that finally makes this outer cone inclined-plane 22 and this inner cone inclined-plane 41 form is better.Obviously, a side of the small end of the centrum that this bellows 50 forms in this outer cone inclined-plane 22, only can make the gap between this outer cone inclined-plane 22 and this inner cone inclined-plane 41 become large after these valve seat 20 translations otherwise this bellows 50 broadens.
This inner cone inclined-plane 41 is provided with inner card cage 411, and the interior card of this inner card cage 411 has at least 2 layers of metal sealing plate 412, and this outer cone inclined-plane 22 is provided with the wearing layer 221 that adopts the material that is same as this metal sealing plate 412 to prepare.Like this, form and be firmly sealed and matched by the cooperation of this metal sealing plate 412 and this wearing layer 221, make this butterfly valve can meet the demand of applied at elevated temperature.
As shown in Figure 3, on this oral area of through hole 121 be provided with and on this through hole 121 coaxial inner conductors upper circular groove 1211 and on this, on through hole 121, be bolted with collar 1212, the at least 3 layers of dust ring 1213 that are provided with metallic material preparation in this circular groove 1211 and are superimposed, and being enclosed within on this valve rod 30 of these dust ring 1213 transition fit, and this dust ring 1213 is spacing by 1212 of this collars., this dust ring 1213 is stacked together to be stuck on this in circular groove 1211 afterwards by this collar 1212, thereby reaches good dust-proof effect, even and if under the condition of high temperature, its dust-proof effect is still fabulous.
As shown in Figure 4, the sidewall of this lower through-hole 122 is provided with screw 1221, in this screw 1221, is bolted with stop screw 1222.The annular restraining groove 31 that the bottom of this valve rod 30 is provided with and this screw 1221 matches.The inner of this stop screw 1222 withstands in this restraining groove 31, the lower wall close contact of this stop screw 1222 and this restraining groove 31, and the width of this restraining groove 31 is greater than the external diameter of this stop screw 1222.And the oral area of this lower through-hole 122 is bolted with sealing cover 1223.Like this, under high and low temperature transition state, this valve rod 30 changes after length, cannot produce displacements to this valve body 10 is inner thereby this stop screw 1222 is against in the lower wall of this restraining groove 31 this valve rod 30.That is to say, only can be protruding and can not inwardly retract, thereby avoided this flap 40 to be damaged and these valve rod 30 plaies after, this flap 40 cannot rotate and stuck phenomenon.
Further say, the axle center place of sealing lid 1223 is provided with positioning pit 12231, and the lower end of this valve rod 30 is inserted in this positioning pit 12231.Like this, make the rotation of this valve rod 30 comparatively stable, further meet the user demand of this butterfly valve under the condition of high temperature.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. high temperature butterfly valve, comprise valve body (10), valve seat (20), valve rod (30), flap (40), wherein, this valve body (10) inside has the first circular channel (11), this valve seat (20) is positioned at this first circular channel (11), this valve seat (20) inside has the second circular channel (21), this flap (40) is positioned at this second circular channel (21), this flap (40) is fixed on the middle part of this valve rod (30), the upper and lower of this valve body (10) is respectively equipped with through hole (121) and lower through-hole (122), the top and bottom of this valve rod (30) are respectively through through hole (121) and lower through-hole (122) on this, simultaneously, the outer marginal circumference of this flap (40) is inner cone inclined-plane (41), this the second circular channel (21) inner edge circumference is the outer cone inclined-plane (22) identical with this inner cone inclined-plane (41) true dip direction, it is characterized in that:
An end face of described the first circular channel (11) is provided with the step (111) extending internally, on another end face, be fixed with annular cover plate (112) by screw, and the circumferential surface of this first circular channel (11) is provided with at least 3 trends and is same as the chute (113) of the shaft axis of this first circular channel (11), this valve seat (20) is stuck between this step (111) and this annular cover plate (112), the thickness of this valve seat (20) is less than the spacing of this step (111) and this annular cover plate (112), the outer marginal circumference surface of this valve seat (20) is provided with and this chute (113) pit (23) of correspondence between two, in this chute (113) and this pit (23), card has ball (24), the external diameter of this valve seat (20) be less than this first circular channel (11) thus the outer rim of this valve seat of internal diameter (20) and the sidewall of this first circular channel (11) between there is gap (114), simultaneously, between the end face of this valve seat (20) and this step (111), connect by a bellows (50), this bellows (50) has exterior notch (51) and the inside inner tank mouths (52) of opening of outward opening, and this exterior notch (51) is communicated with this gap (114),
Described inner cone inclined-plane (41) is provided with inner card cage (411), in this inner card cage (411), card has at least 2 layers of metal sealing plate (412), and this outer cone inclined-plane (22) is provided with the wearing layer (221) that adopts the material that is same as this metal sealing plate (412) to prepare;
The oral area of described upper through hole (121) be provided with and on this through hole (121) coaxial inner conductor upper circular groove (1211) and on this, on through hole (121), be bolted with collar (1212), the at least 3 layers of dust ring (1213) that are provided with metallic material preparation in this circular groove (1211) and are superimposed, and being enclosed within on this valve rod (30) of this dust ring (1213) transition fit, and this dust ring (1213) is spacing by this collar (1212) institute;
The sidewall of described lower through-hole (122) is provided with screw (1221), in this screw (1221), be bolted with stop screw (1222), the annular restraining groove (31) that the bottom of this valve rod (30) is provided with and this screw (1221) matches, the inner of this stop screw (1222) withstands in this restraining groove (31), the lower wall close contact of this stop screw (1222) and this restraining groove (31), and the width of this restraining groove (31) is greater than the external diameter of this stop screw (1222), and the oral area of this lower through-hole (122) is bolted with sealing cover (1223).
2. high temperature butterfly valve according to claim 1, is characterized in that: the axle center place of described sealing cover (1223) is provided with positioning pit (12231), and the lower end of this valve rod (30) is inserted in this positioning pit (12231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892414.0U CN203703169U (en) | 2013-12-30 | 2013-12-30 | High temperature butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892414.0U CN203703169U (en) | 2013-12-30 | 2013-12-30 | High temperature butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703169U true CN203703169U (en) | 2014-07-09 |
Family
ID=51053614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892414.0U Expired - Fee Related CN203703169U (en) | 2013-12-30 | 2013-12-30 | High temperature butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703169U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775661A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | High-temperature butterfly valve |
| CN104197087A (en) * | 2014-09-03 | 2014-12-10 | 无锡欧易博阀业科技有限公司 | Seal mechanism located between flue valve and cooling water pipe |
| CN104964048A (en) * | 2015-07-21 | 2015-10-07 | 河北长宏阀门有限公司 | Anti-locking high-temperature seal butterfly valve |
-
2013
- 2013-12-30 CN CN201320892414.0U patent/CN203703169U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775661A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | High-temperature butterfly valve |
| CN103775661B (en) * | 2013-12-30 | 2016-12-07 | 宁波市天基隆智控技术有限公司 | High temperature butterfly valve |
| CN104197087A (en) * | 2014-09-03 | 2014-12-10 | 无锡欧易博阀业科技有限公司 | Seal mechanism located between flue valve and cooling water pipe |
| CN104964048A (en) * | 2015-07-21 | 2015-10-07 | 河北长宏阀门有限公司 | Anti-locking high-temperature seal butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |