CN212028571U - Electric butterfly valve structure for seepage-proofing connection - Google Patents
Electric butterfly valve structure for seepage-proofing connection Download PDFInfo
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- CN212028571U CN212028571U CN202020703090.1U CN202020703090U CN212028571U CN 212028571 U CN212028571 U CN 212028571U CN 202020703090 U CN202020703090 U CN 202020703090U CN 212028571 U CN212028571 U CN 212028571U
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- electric actuator
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Abstract
The utility model discloses an electric butterfly valve structure with anti-seepage connection, which comprises an electric actuator, a shaft coupling and a butterfly valve, wherein the butterfly valve is vertically arranged, and the electric actuator is fixed right above the butterfly valve through the shaft coupling; the butterfly valve comprises a valve body, a ceramic sealing ring, a valve clack, a sealing ring and a valve rod; the ceramic sealing ring is arranged on the inner side of the valve body, the sealing ring is arranged on the outer side of the valve clack and is contacted with the ceramic sealing ring, the valve clack is arranged on the valve rod, and the upper end of the valve rod extends out of the valve body and is connected with the coupling; the shaft coupling comprises a shaft sleeve, a sealing framework and a cover plate, wherein the upper end face and the lower end face of the shaft sleeve are respectively connected with the valve rod and an output shaft of the electric actuator, the cover plate is sleeved outside the shaft sleeve, the upper end face and the lower end face of the cover plate are respectively connected with the electric actuator and the butterfly valve, and the sealing framework is arranged between the cover plate and the shaft sleeve. The utility model discloses set up the shaft coupling that axle sleeve, sealed skeleton and apron are constituteed, connect electric actuator and butterfly valve, hinder rivers from valve rod and axle sleeve infiltration electric actuator, guarantee electric actuator structure safety.
Description
Technical Field
The utility model relates to a valve body technical field, concretely relates to electric butterfly valve structure that prevention of seepage is connected.
Background
The desulfurization system generally adopts the electric actuator of SDQ series to cooperate the butterfly valve to use, and in the in-service use, the valve rod level of butterfly valve sets up to be connected with electric actuator through the shaft coupling that axle sleeve and apron formed, and control the switch of butterfly valve through electric actuator, wherein electric actuator level is established in butterfly valve one side. However, when the butterfly valve is used, the butterfly valve is seriously abraded, so that the sealing is not tight, a water seepage site is generated, the butterfly valve penetrates into the electric actuator through the valve rod and the shaft sleeve, so that lubricating grease in the electric actuator is deteriorated, the gear is rusted and jammed, and the electric actuator is damaged; more seriously, the water vapor enters the internal circuit of the electric actuating mechanism, so that the motor is affected with damp and insulation damage, and the power switch trips to influence the normal production progress and the production safety. The utility model provides an electric butterfly valve structure that prevention of seepage was connected overcomes above-mentioned defect.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric butterfly valve structure that prevention of seepage was connected adds sealed skeleton and seals, avoids the infiltration to flow into electric actuator in, guarantees production.
The utility model provides a technical scheme that above-mentioned technical problem adopted is:
an electric butterfly valve structure with seepage-proofing connection comprises an electric actuator, a coupler and a butterfly valve, wherein the butterfly valve is vertically arranged, and the electric actuator is fixed right above the butterfly valve through the coupler;
the butterfly valve comprises a valve body, a ceramic sealing ring, a valve clack, a sealing ring and a valve rod; the ceramic sealing ring is arranged on the inner side of the valve body, the sealing ring is arranged on the outer side of the valve clack and is in contact with the ceramic sealing ring, the valve clack is arranged on the valve rod and rotates around the axis of the valve rod, the valve rod is vertically arranged, and the upper end of the valve rod extends out of the valve body and is connected with the coupling;
the shaft coupling comprises a shaft sleeve, a sealing framework and a cover plate, wherein the upper end face and the lower end face of the shaft sleeve are respectively connected with an output shaft of the valve rod and an output shaft of the electric actuator, the cover plate is sleeved outside the shaft sleeve, the upper end face and the lower end face of the cover plate are respectively connected with the electric actuator and the butterfly valve, and the sealing framework is arranged between the cover plate and the shaft sleeve and is positioned at the lower part of.
Furthermore, the valve body comprises an upper valve body and a lower valve body, and the ceramic seal ring is arranged in an inner ring formed by the upper valve body and the lower valve body which are oppositely arranged; the valve rod comprises an upper valve rod and a lower valve rod, the upper valve rod is arranged in the upper valve body, the upper end of the upper valve rod extends out of the upper valve body and is connected with the lower end of the shaft sleeve, the lower end of the upper valve rod is connected with the top of the valve clack, and the lower valve rod is arranged in the lower valve body and is connected with the bottom of the valve clack.
Furthermore, the inner side of the ceramic sealing ring is provided with annular sealing bulges which are arranged at intervals along the axial direction of the ceramic sealing ring.
Further, the outer diameter of the sealing ring is larger than the inner diameter of the ceramic sealing ring.
Furthermore, the shaft sleeve is in key connection with an output shaft of the electric actuator, and the cover plate is connected with the electric actuator and the butterfly valve through bolts.
Further, the upper valve body and the lower valve body are connected through bolts.
Further, the ceramic seal ring is made of alumina ceramic.
Further, the sealing ring is made of polytetrafluoroethylene.
The utility model discloses beneficial effect as follows:
the shaft coupling consisting of the shaft sleeve, the sealing framework and the cover plate is arranged and connected with the electric actuator and the butterfly valve, so that water flow is prevented from permeating into the electric actuator from the valve rod and the shaft sleeve, and the structural safety of the electric actuator is ensured;
the transverse arrangement of the electric actuator is changed into the vertical arrangement, so that water seepage is avoided, the abrasion and leakage conditions of the butterfly valve can be observed and judged, the butterfly valve is replaced in advance, and the safe production is ensured;
the ceramic sealing ring is matched with the sealing ring, so that the sealing effect of the butterfly valve is ensured, the butterfly valve is corrosion-resistant and has long service life;
the utility model discloses sealed effectual, the easy access is changed, and life extension, the fault rate is low, effectively guarantees production progress and production safety.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention in an exploded state;
fig. 3 is a schematic view of the sealing of the ceramic sealing ring of the present invention;
fig. 4 is an exploded view of the coupling of the present invention;
fig. 5 is a cross-sectional view of the coupling joint of the present invention.
Reference numerals: 1-electric actuator, 2-coupler, 21-shaft sleeve, 22-sealing framework, 23-cover plate, 3-butterfly valve, 31-valve body, 311-upper valve body, 312-lower valve body, 32-ceramic sealing ring, 321-sealing protrusion, 33-valve clack, 34-sealing ring, 35-valve rod, 351-upper valve rod and 352-lower valve rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in figures 1 and 2, the electric butterfly valve structure with the anti-seepage connection comprises an electric actuator 1, a coupler 2 and a butterfly valve 3, wherein the butterfly valve 3 is vertically arranged, and the electric actuator 1 is fixed right above the butterfly valve 3 through the coupler 2. With the vertical setting of electric actuator 1 and butterfly valve 3, effectively avoid the infiltration to get into electric actuator along valve rod 35 and axle sleeve 21 to can observe the infiltration condition according to the vestige in the 2 outsides of shaft coupling, can in time change wearing and tearing butterfly valve 3.
As shown in fig. 2 and 3, the butterfly valve 3 includes a valve body 31, a ceramic seal ring 32, a valve flap 33, a seal ring 34 and a valve stem 35; the ceramic seal ring 32 is arranged on the inner side of the valve body 31, the seal ring 34 is arranged on the outer side of the valve clack 33 and is in contact with the ceramic seal ring 32, the valve clack 33 is arranged on the valve rod 35 and rotates around the axis of the valve rod, the valve rod 35 is vertically arranged, and the upper end of the valve rod extends out of the valve body 31 and is connected with the coupler 2. Set up ceramic seal 32 and flexible sealing ring 34 and cooperate, effectively guarantee the sealed effect of butterfly valve, reduce the seepage condition to the life of extension butterfly valve.
As shown in fig. 4 and 5, the shaft coupling 2 includes a shaft sleeve 21, a sealing frame 22 and a cover plate 23, the upper and lower end faces of the shaft sleeve 21 are respectively connected with the output shafts of the valve rod 35 and the electric actuator 1, the cover plate 23 is sleeved outside the shaft sleeve 21, the upper and lower end faces of the cover plate are respectively connected with the electric actuator 1 and the butterfly valve 3, the sealing frame 22 is arranged between the cover plate 23 and the shaft sleeve 21 and is located at the lower part of the cover plate 23, the shaft sleeve 21 is sealed, and water seepage via the shaft sleeve 21 is prevented.
The coupling 2 is used for connecting an output shaft of the electric actuator 1 and an upper valve rod 351 of the butterfly valve 3, the output shaft of the electric actuator 1 is connected to the upper end of a shaft sleeve 21 through a key, the upper valve rod 351 is arranged at the lower end of the shaft sleeve 21, the shaft sleeve 21 is covered on the lower part of the electric actuator 1 through a cover plate 23, and the cover plate 23 is respectively connected to the electric actuator 1 and the upper valve body 311 through bolts; the sealing framework 22 is arranged in the cover plate 23, sleeved on the shaft sleeve 21 and positioned at the lower part of the cover plate 23, and is used for blocking moisture permeating through the upper valve rod 351 from further permeating to the shaft sleeve 21, so that the sealing framework plays a role in sealing and blocking water.
The utility model discloses a reinforcing butterfly valve 3's leakproofness increases sealed skeleton 22 and blocks on moisture infiltration to axle sleeve 21, vertical setting and in time change the serious butterfly valve 3 of wearing and tearing for butterfly valve 3's life extension is one time, and electric actuator 1's life increases two to three times, and the fault rate effectively reduces, has guaranteed production efficiency and production safety.
As shown in fig. 2, the valve body 31 further includes an upper valve body 311 and a lower valve body 312, and the ceramic sealing ring 32 is disposed in an inner ring formed by the upper valve body 311 and the lower valve body 312 which are oppositely disposed; the valve rod 35 includes an upper valve rod 351 and a lower valve rod 352, the upper valve rod 351 is arranged in the upper valve body 311, the upper end of the upper valve rod 351 extends out of the upper valve body 311 and is connected with the lower end of the shaft sleeve 21, the lower end of the upper valve rod is connected with the top of the valve clack 33, and the lower valve rod 352 is arranged in the lower valve body 312 and is connected with the bottom of the valve clack 33.
As shown in fig. 3, an annular sealing protrusion 321 is further disposed inside the ceramic sealing ring 32, and the sealing protrusion 321 is spaced along the axial direction of the ceramic sealing ring 32. Preferably, the sealing protrusion 321 is provided in four passes.
Further, the outer diameter of the sealing ring 34 is larger than the inner diameter of the ceramic sealing ring 32. Preferably, the outer diameter of the sealing ring 34 is 1.5mm larger than the inner diameter of the ceramic sealing ring 32 in a normal state, and when the sealing ring is actually used, the sealing ring 34 made of polytetrafluoroethylene is extruded when contacting the ceramic sealing ring 32, is smoothly clamped into the inner side of the ceramic sealing ring 32, and forms a fluctuant water-blocking sealing surface with the sealing protrusion 321, so that the sealing effect is better; and the alumina ceramic material and the polytetrafluoroethylene material have the advantages of corrosion resistance, abrasion resistance and long service life.
Further, the shaft sleeve 21 is in key connection with an output shaft of the electric actuator 1, and the cover plate 23 is connected with the electric actuator 1 and the butterfly valve 3 through bolts.
Further, the upper valve body 311 and the lower valve body 312 are connected by bolts.
Further, the ceramic seal ring 32 is made of alumina ceramic.
Further, the sealing ring 34 is made of teflon.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (8)
1. An electric butterfly valve structure with seepage-proofing connection is characterized by comprising an electric actuator (1), a coupler (2) and a butterfly valve (3), wherein the butterfly valve (3) is vertically arranged, and the electric actuator (1) is fixed right above the butterfly valve (3) through the coupler (2);
the butterfly valve (3) comprises a valve body (31), a ceramic sealing ring (32), a valve clack (33), a sealing ring (34) and a valve rod (35); the ceramic sealing ring (32) is arranged on the inner side of the valve body (31), the sealing ring (34) is arranged on the outer side of the valve clack (33) and is in contact with the ceramic sealing ring (32), the valve clack (33) is arranged on the valve rod (35) and rotates around the axis of the valve rod, the valve rod (35) is vertically arranged, and the upper end of the valve rod extends out of the valve body (31) and is connected with the coupling (2);
the shaft coupling (2) includes axle sleeve (21), sealed skeleton (22) and apron (23), the output shaft of valve rod (35) and electric actuator (1) is connected respectively to the upper and lower terminal surface of axle sleeve (21), apron (23) cover is in the axle sleeve (21) outside, and its upper and lower both ends face is connected with electric actuator (1) and butterfly valve (3) respectively, sealed skeleton (22) are established between apron (23) and axle sleeve (21), and are located apron (23) lower part.
2. The electric butterfly valve structure for impermeable connection according to claim 1, characterized in that: the valve body (31) comprises an upper valve body (311) and a lower valve body (312), and the ceramic sealing ring (32) is arranged in an inner ring formed by the upper valve body (311) and the lower valve body (312) in an opposite mode; the valve rod (35) comprises an upper valve rod (351) and a lower valve rod (352), the upper valve rod (351) is arranged in the upper valve body (311), the upper end of the upper valve rod extends out of the upper valve body (311) and is connected with the lower end of the shaft sleeve (21), the lower end of the upper valve rod is connected with the top of the valve clack (33), and the lower valve rod (352) is arranged in the lower valve body (312) and is connected with the bottom of the valve clack (33).
3. The electric butterfly valve structure for impermeable connection according to claim 1, characterized in that: the inner side of the ceramic sealing ring (32) is provided with an annular sealing bulge (321), and the sealing bulge (321) is axially arranged along the ceramic sealing ring (32) at intervals.
4. The electric butterfly valve structure for impermeable connection according to claim 3, characterized in that: the outer diameter of the sealing ring (34) is larger than the inner diameter of the ceramic sealing ring (32).
5. The electric butterfly valve structure for impermeable connection according to claim 1, characterized in that: the shaft sleeve (21) is in key connection with an output shaft of the electric actuator (1), and the cover plate (23) is connected with the electric actuator (1) and the butterfly valve (3) through bolts.
6. The electric butterfly valve structure for impermeable connection according to claim 2, characterized in that: the upper valve body (311) and the lower valve body (312) are connected through bolts.
7. The electric butterfly valve structure for impermeable connection according to claim 2, characterized in that: the ceramic seal ring (32) is made of alumina ceramic.
8. The electric butterfly valve structure for impermeable connection according to claim 1, characterized in that: the sealing ring (34) is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703090.1U CN212028571U (en) | 2020-04-30 | 2020-04-30 | Electric butterfly valve structure for seepage-proofing connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703090.1U CN212028571U (en) | 2020-04-30 | 2020-04-30 | Electric butterfly valve structure for seepage-proofing connection |
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| Publication Number | Publication Date |
|---|---|
| CN212028571U true CN212028571U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020703090.1U Active CN212028571U (en) | 2020-04-30 | 2020-04-30 | Electric butterfly valve structure for seepage-proofing connection |
Country Status (1)
| Country | Link |
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| CN (1) | CN212028571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236798A (en) * | 2021-05-25 | 2021-08-10 | 上海法登阀门有限公司 | Triple eccentric high-temperature cut-off butterfly valve at inlet of range hood |
-
2020
- 2020-04-30 CN CN202020703090.1U patent/CN212028571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236798A (en) * | 2021-05-25 | 2021-08-10 | 上海法登阀门有限公司 | Triple eccentric high-temperature cut-off butterfly valve at inlet of range hood |
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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |