CN210484650U - RTO leak protection diverter valve - Google Patents
RTO leak protection diverter valve Download PDFInfo
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- CN210484650U CN210484650U CN201921542238.1U CN201921542238U CN210484650U CN 210484650 U CN210484650 U CN 210484650U CN 201921542238 U CN201921542238 U CN 201921542238U CN 210484650 U CN210484650 U CN 210484650U
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Abstract
The utility model provides a RTO leak protection diverter valve, including the disk seat, the valve plate, valve shaft and cylinder, the cylinder is installed on the casing of incinerator, the disk seat is installed in the gas circuit switching port department of incinerator, the piston rod of cylinder meets with the valve shaft, the mounting hole has been seted up on the casing, the valve shaft stretches into inside the casing through the mounting hole, the valve plate is installed in the valve shaft end, valve plate and disk seat shape adaptation, drive the valve plate by the cylinder and close or open the disk seat, the cylinder body of cylinder is installed on the casing of incinerator through cylinder sealing mechanism, the piston rod of cylinder is located inside cylinder sealing mechanism, be equipped with valve shaft sealing mechanism in the mounting hole, the valve shaft passes from valve shaft sealing mechanism, the sealing surface of disk seat is equipped with the disk seat seal structure, the; the cylinder protection cover of the switching valve covers the piston rod and the outside of the sealing guide mechanism, double protection is carried out on the joint of the valve shaft and the mounting hole, and sealing performance is improved.
Description
Technical Field
The utility model relates to a RTO exhaust-gas treatment technique especially relates to a RTO leak protection diverter valve.
Background
The basic principle of RTO (Regenerative Thermal Oxidizer, RTO) is to oxidize organic waste gas into CO at high temperature (760 ℃ C.)2And H2O, thereby purifying the waste gas and recovering the heat released during decomposition so as to achieve the dual purposes of environmental protection and energy saving, and the device is an energy-saving and environment-friendly device for treating the volatile organic waste gas with medium and high concentration.
To date, RTO valves come in roughly two forms: one is to realize the switching of the gas through the rotation of the valve by a rotary valve, the other is to realize the switching of the gas by adopting the switching of a plurality of valves, the switching valve has gradually become the mainstream design in the use of the current RTO equipment, in the RTO equipment, the switching valve is particularly important in controlling waste gas, the sealing performance of the switching valve directly concerns the waste gas treatment efficiency of the whole equipment and the whole system, compared with other air pipe valves, the switching valve in the form of a cover plate has the advantages of fast opening and closing action, low leakage rate and convenient maintenance, but in the actual use process of a project, due to frequent use and repeated up-and-down moving impact of the switching valve, the special sealing embedded at a sealing guide device and a valve seat is deformed, fatigued and aged, thereby the sealing performance of the switching valve is reduced, therefore, the switching valve with high sealing performance is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a RTO leak protection diverter valve to promote the sealing performance of diverter valve.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
RTO leak protection diverter valve, including disk seat, valve plate, valve shaft and cylinder, the cylinder is installed on the casing of incinerator, and the disk seat is installed in the gas circuit switching mouth department of incinerator, and the piston rod and the valve shaft of cylinder meet, have seted up the mounting hole on the casing, and inside the valve shaft stretched into the casing through the mounting hole, the valve plate was installed in the valve shaft end, and valve plate and disk seat shape adaptation are closed or are opened the disk seat by cylinder drive valve plate, wherein:
the cylinder body of the cylinder is arranged on the shell of the incinerator through a cylinder sealing mechanism, the piston rod of the cylinder is positioned in the cylinder sealing mechanism, a valve shaft sealing mechanism is arranged in the mounting hole, the valve shaft penetrates through the valve shaft sealing mechanism, the sealing surface of the valve seat is provided with a valve seat sealing structure, and the valve plate is sealed with the valve seat through the valve seat sealing mechanism;
specifically, the cylinder sealing mechanism comprises a sealing cover, the bottom end of the sealing cover is mounted on the shell through a connecting piece and covers the periphery of the mounting hole, the cylinder body of the cylinder is fixed at the top of the sealing cover, and the piston rod of the cylinder extends into the sealing cover;
furthermore, a ceramic fiber sealing ring is arranged at the joint of the sealing cover and the shell; sealing the installation interface of the sealing cover;
furthermore, an access door is arranged on the side wall of the sealing cover; the piston rod and the valve shaft in the sealing cover are convenient to overhaul;
further, the top of the sealing cover is provided with an air cylinder protecting cover which covers the outside of the air cylinder body; the cylinder body of the cylinder is protected by the cylinder protection cover, so that the stable operation of the cylinder is ensured;
the valve shaft sealing mechanism comprises a cylinder shell, wherein the outer wall of the cylinder shell is welded with an adapter ring, and the adapter ring is jointed with the edge of the mounting hole through a connecting piece; the inner diameter of the cylinder shell is larger than the outer diameter of the valve shaft, an accommodating cavity is formed between the cylinder shell and the valve shaft, a bottom ring is welded at the bottom end of the cylinder shell, the inner diameter of the bottom ring is matched with the valve shaft, and the valve shaft penetrates through the bottom ring; a bottom sealing ring, a self-lubricating guide sleeve, a tensioning spring and a top sealing ring are sequentially arranged in the accommodating cavity from bottom to top, a pressing ring is arranged at the top of the cylinder shell, the top edge of the pressing ring is fixedly connected with the top edge of the cylinder shell through a connecting piece, the bottom edge of the pressing ring presses the top sealing ring, and the tensioning spring is pressed, so that the top sealing ring, the tensioning spring, the self-lubricating guide sleeve and the bottom sealing ring are kept in a pressing state between the pressing ring and the bottom ring;
further, the bottom sealing ring and the top sealing ring are made of graphite packing sealing rings;
the valve seat sealing structure comprises a pair of sealing grooves, the sealing grooves are formed in the sealing surface of the valve seat, sealing rings are respectively arranged in the sealing grooves, and an airflow sealing structure is arranged between the sealing grooves; when the sealing rings on the two sides fail, the air flow sealing mode is automatically switched;
further, the valve plate is made of a metal plate and is fixedly connected with the valve shaft through a bolt; this valve plate generally adopts corrosion-resistant, high temperature resistant and has the metal material preparation of certain thickness, and the valve plate passes through the machine tooling location with the valve shaft to adopt the bolt fastening, guaranteed the straightness that hangs down of valve plate and valve shaft, simple manufacture, the valve plate later stage of being convenient for is dismantled and is machined alone simultaneously.
The utility model has the advantages that:
1. the cylinder protection cover of the switching valve covers the piston rod and the outside of the sealing guide mechanism, double protection is performed on the joint of the valve shaft and the mounting hole, and the sealing performance is improved;
2. the sealing guide mechanism of the switching valve is internally provided with a tensioning spring, the bottom edge of a pressing ring presses a top sealing ring, the tensioning spring is pressed, so that the top sealing ring, the tensioning spring, a self-lubricating guide sleeve and a bottom sealing ring are kept in a pressing state between the pressing ring and the bottom ring, and after the top sealing ring and the bottom sealing ring are aged, the tensioning spring is automatically tensioned, and the sealing performance is prevented from being reduced;
3. the valve seat of the switching valve is provided with the sealing ring and the air flow sealing structure, when the sealing rings on the two sides fail, the air flow sealing mode is automatically switched to, the sealing performance is favorably improved, and the service life is prolonged.
Drawings
Fig. 1 is a schematic sectional structure view of an RTO leakage-proof switching valve provided by the present invention;
FIG. 2 is an enlarged close-up view at A in FIG. 1;
FIG. 3 is an enlarged close-up view at B in FIG. 1;
fig. 4 is a schematic structural view of the valve plate.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1-4, the utility model provides a RTO leak protection diverter valve includes disk seat 1, valve plate 2, valve shaft 3 and cylinder 4, the cylinder is installed on the casing of incinerator, the disk seat is installed in the gas circuit switching port department of incinerator, the piston rod of cylinder meets with the valve shaft, the mounting hole has been seted up on the casing, the valve shaft stretches into inside the casing through the mounting hole, the valve plate is installed in the valve shaft end, valve plate and disk seat shape adaptation, it closes or opens the disk seat to drive the valve plate by the cylinder, the cylinder body of cylinder is installed on the casing of incinerator through cylinder sealing mechanism, the piston rod of cylinder is located inside the cylinder sealing mechanism, be equipped with valve shaft sealing mechanism in the mounting hole, the valve shaft passes from valve shaft sealing mechanism, the sealed face of disk seat is equipped with valve seat seal structure; the cylinder sealing mechanism comprises a sealing cover 5, the bottom end of the sealing cover is arranged on the shell through a connecting piece and covers the periphery of the mounting hole, the cylinder body of the cylinder is fixed at the top of the sealing cover, and the piston rod of the cylinder extends into the sealing cover; the joint of the sealing cover and the shell is provided with a ceramic fiber sealing ring; sealing the installation interface of the sealing cover; an access door 6 is arranged on the side wall of the sealing cover; the piston rod and the valve shaft in the sealing cover are convenient to overhaul; the top of the sealing cover is provided with an air cylinder protective cover 7 which covers the outside of the cylinder body of the air cylinder; the cylinder body of the cylinder is protected by the cylinder protection cover, so that the stable operation of the cylinder is ensured; the valve shaft sealing mechanism comprises a cylinder shell 8, wherein an adapter ring 9 is welded on the outer wall of the cylinder shell and is jointed with the edge of the mounting hole through a connecting piece; the inner diameter of the cylinder shell is larger than the outer diameter of the valve shaft, an accommodating cavity is formed between the cylinder shell and the valve shaft, a bottom ring 10 is welded at the bottom end of the cylinder shell, the inner diameter of the bottom ring is matched with the valve shaft, and the valve shaft penetrates through the bottom ring; a bottom sealing ring 11, a self-lubricating guide sleeve 12, a tensioning spring 13 and a top sealing ring 14 are sequentially arranged in the accommodating cavity from bottom to top, a pressing ring 15 is arranged at the top of the cylinder shell, the top edge of the pressing ring is fixedly connected with the top edge of the cylinder shell through a connecting piece, the bottom edge of the pressing ring presses the top sealing ring, and the tensioning spring is pressed, so that the top sealing ring, the tensioning spring, the self-lubricating guide sleeve and the bottom sealing ring are kept in a pressing state between the pressing ring and the bottom ring; the bottom sealing ring and the top sealing ring are made of graphite packing sealing rings; the valve seat sealing structure comprises a pair of sealing grooves, the sealing grooves are arranged on the sealing surface of the valve seat, sealing rings 16 are respectively arranged in the sealing grooves, and an airflow sealing structure 17 is arranged between the sealing grooves; when the sealing rings on the two sides fail, the air flow sealing mode is automatically switched; the valve plate is made of a metal plate and is fixedly connected with the valve shaft through a bolt 18; this valve plate generally adopts corrosion-resistant, high temperature resistant and has the metal material preparation of certain thickness, and the valve plate passes through the machine tooling location with the valve shaft to adopt the bolt fastening, guaranteed the straightness that hangs down of valve plate and valve shaft, simple manufacture, the valve plate later stage of being convenient for is dismantled and is machined alone simultaneously. The cylinder protection cover of the switching valve covers the piston rod and the outside of the sealing guide mechanism, double protection is performed on the joint of the valve shaft and the mounting hole, and the sealing performance is improved; the sealing guide mechanism of the switching valve is internally provided with a tensioning spring, the bottom edge of a pressing ring presses a top sealing ring, the tensioning spring is pressed, so that the top sealing ring, the tensioning spring, a self-lubricating guide sleeve and a bottom sealing ring are kept in a pressing state between the pressing ring and the bottom ring, and after the top sealing ring and the bottom sealing ring are aged, the tensioning spring is automatically tensioned, and the sealing performance is prevented from being reduced; the valve seat of the switching valve is provided with the sealing ring and the air flow sealing structure, when the sealing rings on the two sides fail, the air flow sealing mode is automatically switched to, the sealing performance is favorably improved, and the service life is prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to let the technical personnel in the field understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (9)
- RTO leak protection diverter valve, including disk seat, valve plate, valve shaft and cylinder, the cylinder is installed on the casing of incinerator, and the disk seat is installed in the gas circuit switching mouth department of incinerator, and the piston rod and the valve shaft of cylinder meet, have seted up the mounting hole on the casing, and inside the valve shaft stretched into the casing through the mounting hole, the valve plate was installed in the valve shaft end, and valve plate and disk seat shape adaptation are closed or are opened disk seat, its characterized in that by the cylinder drive valve plate:the cylinder body of the cylinder is arranged on the shell of the incinerator through the cylinder sealing mechanism, the piston rod of the cylinder is positioned inside the cylinder sealing mechanism, the valve shaft sealing mechanism is arranged in the mounting hole, the valve shaft penetrates through the valve shaft sealing mechanism, the valve seat sealing structure is arranged on the sealing surface of the valve seat, and the valve plate is sealed with the valve seat through the valve seat sealing mechanism.
- 2. The RTO leakage-proof switching valve of claim 1, wherein:the cylinder sealing mechanism comprises a sealing cover, the bottom end of the sealing cover is mounted on the shell through a connecting piece and covers the periphery of the mounting hole, the cylinder body of the cylinder is fixed at the top of the sealing cover, and the piston rod of the cylinder extends into the sealing cover.
- 3. The RTO leakage-proof switching valve of claim 2, wherein:the joint of the sealing cover and the shell is provided with a ceramic fiber sealing ring.
- 4. The RTO leakage-proof switching valve of claim 2, wherein:an access door is arranged on the side wall of the sealing cover.
- 5. The RTO leakage-proof switching valve of claim 2, wherein:the cylinder safety cover has been installed at the sealed cowling top, and the cylinder safety cover covers in the cylinder body outside of cylinder.
- 6. The RTO leakage-proof switching valve of claim 1, wherein:the valve shaft sealing mechanism comprises a cylinder shell, wherein the outer wall of the cylinder shell is welded with an adapter ring, and the adapter ring is jointed with the edge of the mounting hole through a connecting piece;the inner diameter of the cylinder shell is larger than the outer diameter of the valve shaft, an accommodating cavity is formed between the cylinder shell and the valve shaft, a bottom ring is welded at the bottom end of the cylinder shell, the inner diameter of the bottom ring is matched with the valve shaft, and the valve shaft penetrates through the bottom ring;the bottom sealing ring, the self-lubricating guide sleeve, the tensioning spring and the top sealing ring are sequentially arranged in the accommodating cavity from bottom to top, the pressing ring is arranged at the top of the cylinder shell, the top edge of the pressing ring is fixedly connected with the top edge of the cylinder shell through a connecting piece, the bottom edge of the pressing ring presses the top sealing ring, and the tensioning spring is pressed, so that the top sealing ring, the tensioning spring, the self-lubricating guide sleeve and the bottom sealing ring are kept in a pressing state between the pressing ring and the bottom ring.
- 7. The RTO leakage-proof switching valve of claim 6, wherein:the bottom sealing ring and the top sealing ring are made of graphite packing sealing rings.
- 8. The RTO leakage-proof switching valve of claim 2, wherein:the valve seat sealing structure comprises a pair of sealing grooves, the sealing grooves are formed in the sealing surfaces of the valve seat, sealing rings are respectively arranged in the sealing grooves, and an air flow sealing structure is further arranged between the sealing grooves.
- 9. The RTO leakage-proof switching valve of claim 8, wherein:the valve plate is made of a metal plate and is fixedly connected with the valve shaft through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542238.1U CN210484650U (en) | 2019-09-17 | 2019-09-17 | RTO leak protection diverter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542238.1U CN210484650U (en) | 2019-09-17 | 2019-09-17 | RTO leak protection diverter valve |
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| Publication Number | Publication Date |
|---|---|
| CN210484650U true CN210484650U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921542238.1U Active CN210484650U (en) | 2019-09-17 | 2019-09-17 | RTO leak protection diverter valve |
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| CN (1) | CN210484650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469681A (en) * | 2019-09-17 | 2019-11-19 | 上海兰宝环保科技有限公司 | A kind of RTO leakproof switching valve |
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2019
- 2019-09-17 CN CN201921542238.1U patent/CN210484650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469681A (en) * | 2019-09-17 | 2019-11-19 | 上海兰宝环保科技有限公司 | A kind of RTO leakproof switching valve |
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