CN211009904U - Multiple sealed RTO diverter valve - Google Patents
Multiple sealed RTO diverter valve Download PDFInfo
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- CN211009904U CN211009904U CN201921542236.2U CN201921542236U CN211009904U CN 211009904 U CN211009904 U CN 211009904U CN 201921542236 U CN201921542236 U CN 201921542236U CN 211009904 U CN211009904 U CN 211009904U
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Abstract
The utility model discloses a multiple sealed RTO diverter valve, its technical scheme main points are: a multi-seal RTO switching valve comprises a box upper side plate and a box lower side plate which are oppositely arranged, wherein a valve port is formed in the box lower side plate, a valve seat is arranged on the outer side wall of the box upper side plate, a valve rod penetrates through the valve seat, a valve plate for plugging the valve port is arranged at one end, facing the box lower side plate, of the valve rod, an air cylinder for driving the valve rod to lift is arranged on the box upper side plate, and an air-tight device is arranged between the valve seat and; the air-tight device comprises a sealing sleeve arranged on the outer side wall of the valve seat and used for the valve rod to penetrate, sealing filler arranged between the sealing sleeve and the valve rod, a pressing sleeve sleeved on the valve rod and provided with a lower end face penetrating the sealing sleeve, a plurality of fastening bolts arranged between the pressing sleeve and the sealing sleeve, and a pneumatic sealing assembly arranged on the sealing sleeve and further used for sealing a gap between the sealing sleeve and the valve rod. The utility model discloses reach and ensure zero leakage of heat accumulation formula RTO diverter valve to effectively improve heat accumulation formula RTO diverter valve security performance.
Description
Technical Field
The utility model relates to a heat accumulation formula heating power burns the device field, especially involves a multiple sealed RTO diverter valve.
Background
The purification treatment of industrial waste gas containing Volatile Organic Compounds (VOCs) is a hotspot of air pollution treatment. Regenerative thermal incineration (RTO) is a typical method for purifying industrial organic waste gas, and is suitable for treating industrial organic waste gas with medium and high concentration.
In a Regenerative Thermal Oxidizer (RTO), an exhaust gas switching valve is one of the most important structures,
the quality of the waste gas control valve directly influences the working quality of the whole RTO process. The small exhaust gas leakage greatly reduces the efficiency of exhaust gas treatment. At present, in the RTO industry, pneumatic cover plate switching valves have gradually become the mainstream design of air pipe valves. Compared with other air pipe valves, the cover plate switching valve has the advantages of quick opening and closing action, low leakage rate and convenient maintenance. However, in practical application, due to frequent opening and closing, when metal and metal lack lubrication and frequently impact and rub each other, the leakage rate of waste gas is increased due to abrasion, fatigue, aging and the like of a sealing pair (material), so that the leakage exceeds the standard, and the sealing fails.
For this reason, it is an important development direction to develop a zero-leakage RTO pneumatic cover switching valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multiple sealed RTO diverter valve reaches and ensures zero leakage of heat accumulation formula RTO diverter valve to effectively improve heat accumulation formula RTO diverter valve security performance.
The above technical purpose of the utility model is realized with following technical scheme: a multi-seal RTO switching valve comprises a box upper side plate and a box lower side plate which are oppositely arranged, wherein a valve port for waste gas to enter and exit the box is formed in the box lower side plate, a valve seat is arranged on the outer side wall of the box upper side plate, a valve rod penetrates through the valve seat, a valve plate for plugging the valve port is arranged at one end, facing the box lower side plate, of the valve rod, an air cylinder for driving the valve rod to lift is arranged on the box upper side plate, and an air-tight device is arranged between the valve seat and the valve rod; the air-tight device comprises a sealing sleeve arranged on the outer side wall of the valve seat and used for the valve rod to penetrate, a sealing filler arranged between the sealing sleeve and the valve rod, a pressing sleeve sleeved on the valve rod and arranged on the sealing sleeve in a penetrating mode, a plurality of fastening bolts arranged between the pressing sleeve and the sealing sleeve, and a pneumatic sealing assembly arranged in a gap between the sealing sleeve and the valve rod, wherein the lower end face of the pressing sleeve abuts against and extrudes the sealing filler.
The utility model discloses a further set up to: the pneumatic sealing assembly comprises an air sealing ring arranged between the sealing sleeve and the valve rod, and a compressed air pipe connected with the sealing sleeve and corresponding to the air sealing ring, and sealing fillers are arranged on two sides of the air sealing ring.
The utility model discloses a further set up to: the disk seat with be provided with a plurality of groups direction subassembly between the valve rod, a plurality of groups direction subassembly encircles valve rod evenly distributed, the disk seat both sides are located with airtight device branch to the direction subassembly, every group the direction subassembly include one end rotate connect in the connecting rod of disk seat, rotate connect in the bearing of the connecting rod other end, wear to locate the loose joint bolt of connecting rod, threaded connection are in the nut of loose joint bolt, the loose joint bolt rotate connect in the disk seat, just the nut butt in the connecting rod and restriction connecting rod turned angle, the bearing butt in the valve rod is right the valve rod direction.
The utility model discloses a further set up to: the fastening bolt sleeve is provided with a spring, and two ends of the spring are respectively abutted to the sealing sleeve and the pressing sleeve.
The utility model discloses a further set up to: the lateral wall of the upper side plate of the box body is connected with a sealing cover for covering the air-tight device through bolts, and the upper end face of the sealing cover is detachably connected with a cylinder protection cover for covering the cylinder.
To sum up, the utility model discloses following beneficial effect has:
1) the sealing packing is extruded by the pressing sleeve, and the air sealing ring is extruded by compressed air at the same time, so that the sealing packing at the two ends of the air sealing ring is fully extruded, a gap between the sealing sleeve and the valve rod is sealed, the deformation of the sealing packing is conveniently adjusted by the fastening bolt, and when the sealing packing is loosened in the using process, the spring can automatically compact the sealing packing through the pressing sleeve, so that gas leakage is prevented;
2) the connecting rod, the valve shaft and the valve seat are triangular, the structure is more stable, and the valve shaft is kept in the vertical direction by adjusting the loose joint bolt;
3) adopt the sealing member to seal between sealed cowling and the valve body, air seal ring compressed air pipe connects to the sealed cowling outside, prevents that gas leakage from outside to the furnace body, plays the effect of multiple protection.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2.
The corresponding part names indicated by the numbers in the figures: 1. an upper side plate of the box body; 2. a lower side plate of the box body; 3. a valve port; 4. a valve seat; 5. a valve stem; 6. a valve plate; 7. a cylinder; 8. sealing sleeves; 9. sealing and filling; 10. Pressing the sleeve; 11. fastening a bolt; 12. a spring; 13. an air seal ring; 14. a compressed air pipe; 15. A connecting rod; 16. a bearing; 17. loose joint bolts; 18. a nut; 19. a sealing cover; 20. cylinder protecting cover.
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 to 3, the utility model provides a multiple sealed RTO diverter valve, including setting up in being used for saving abandonment and being box curb plate 1, box curb plate 2 under relative setting, set up the valve port 3 that supplies waste gas business turn over box at box curb plate 2 under, 1 lateral wall of box curb plate is provided with disk seat 4, and valve rod 5 is worn to be equipped with by disk seat 4, valve rod 5 towards 3 directions of valve port to valve rod 5 has the valve plate 6 that is used for shutoff valve port 3 towards the one end fixed mounting of box curb plate 2 under the box, and the drive is installed to box curb plate 1 the cylinder 7 that valve rod 5 goes up and down, cylinder 7 output shaft is connected with valve rod 5.
Be provided with air-tight device between 4 lateral walls of disk seat and valve rod 5, air-tight device includes fixed connection in 4 lateral walls of disk seat and supplies valve rod 5 to wear to establish seal cover 8, gland packing 9 between 8 inner walls of seal cover and the valve rod 5, seal packing 9 can be the sealing ring, the sealing ring sets up to a plurality of, and valve rod 5 still overlaps and is equipped with pressure cover 10, seal cover 8 is worn to locate to terminal surface under the pressure cover 10, terminal surface butt and extrusion seal packing 9 under the pressure cover 10, at pressure cover 10 and 8 direct mount of seal cover have a plurality of fastening bolt 11, a plurality of fastening bolt 11 encircles valve rod 5 and sets up, and fastening bolt 11 overlaps and is equipped with spring 12, the difference butt in seal cover 8 and pressure cover 10 in the. The sealing sleeve 8 is also provided with a pneumatic sealing assembly for further sealing a gap between the sealing sleeve 8 and the valve rod 5, the airtight assembly comprises an air sealing ring 13 arranged between the sealing sleeve 8 and the valve rod 5, sealing fillers 9 are arranged on two sides of the air sealing ring 13, the sealing sleeve 8 is connected with a compressed air pipe 14 corresponding to the air sealing ring 13, and compressed air is filled in the compressed air pipe 14. Through pressing cover 10 extrusion sealing packing 9, compressed air extrusion air seal ring 13 simultaneously to make the sealing packing 9 at air seal ring 13 both ends fully extrude, thereby reach the gap between sealed gland 8 and the valve rod 5 of sealing, and conveniently adjust the deformation volume of sealing packing 9 through fastening bolt 11, when sealing packing takes place to become flexible in the use, spring 12 can be automatic with sealing packing through pressing cover 10 compaction, prevent gas leakage.
At disk seat 4 with still be provided with three guide assemblies of group between the valve rod 5, three guide assemblies of group encircle valve rod 5 evenly distributed, guide assembly and airtight device divide and locate disk seat 4 both sides, every guide assembly of group includes that one end rotates the connecting rod 15 of connecting in disk seat 4 inner wall, the other end of connecting rod 15 rotates and is connected with bearing 16, bearing 16 butt and valve rod 5 lateral wall, and connecting rod 15 middle section is worn to be equipped with loose joint bolt 17, loose joint bolt 17 rotates and connects in disk seat 4, and loose joint bolt 17 still threaded connection has nut 18, 18 butts in connecting rod 15 and restriction connecting rod 15 turned angle, connecting rod 15, bearing 16 and loose joint bolt 17 rotation axis all are the level setting. The connecting rod 15, the valve shaft and the valve seat 4 are triangular, the structure is more stable, and the valve shaft is kept in the vertical direction by adjusting the loose joint bolt 17.
The outer side wall of the upper side plate 1 of the box body is connected with a sealing cover 19 covering the air-tight device through bolts, the upper end face of the sealing cover 19 is detachably connected with a cylinder protection cover 20 covering the cylinder 7, and the compressed air pipe 14 extends to the outer side of the sealing cover 19. The sealing cover 19 and the valve body are sealed by adopting a sealing piece, and the air sealing ring 13 and the compressed air pipe 14 are connected to the outside of the sealing cover 19, so that the gas is prevented from leaking to the outside of the furnace body, and the multiple protection effect is achieved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a multiple sealed RTO diverter valve, is including being relative box curb plate (1), box curb plate (2) down that sets up, valve port (3) that supply waste gas business turn over box are seted up to box curb plate (2) down, its characterized in that: a valve seat (4) is arranged on the outer side wall of the upper side plate (1) of the box body, a valve rod (5) penetrates through the valve seat (4), a valve plate (6) for plugging the valve port (3) is arranged at one end, facing the lower side plate (2) of the box body, of the valve rod (5), an air cylinder (7) for driving the valve rod (5) to lift is arranged on the upper side plate (1) of the box body, and an air-tight device is arranged between the valve seat (4) and the valve rod (5); the air-tight device comprises a sealing sleeve (8) arranged on the outer side wall of the valve seat (4) and used for the valve rod (5) to penetrate, a sealing filler (9) arranged between the sealing sleeve (8) and the valve rod (5), and a sleeve arranged on the outer side wall of the valve seat (4), the valve rod (5) and the lower end face of the sealing sleeve (8) to penetrate through a pressing sleeve (10) of the sealing sleeve (8), a plurality of fastening bolts (11) arranged between the pressing sleeve (10) and the sealing sleeve (8), a pneumatic sealing assembly arranged in a gap between the sealing sleeve (8) and the valve rod (5), and the lower end face of the pressing sleeve (10) is abutted against and extrudes the sealing filler (9).
2. The multi-seal RTO switch valve of claim 1, wherein: the pneumatic sealing assembly comprises an air sealing ring (13) arranged between the sealing sleeve (8) and the valve rod (5), a compressed air pipe (14) connected with the sealing sleeve (8) and corresponding to the air sealing ring (13), and sealing fillers (9) are arranged on two sides of the air sealing ring (13).
3. A multi-seal RTO switch valve according to claim 1 or 2, wherein: disk seat (4) with be provided with a plurality of groups direction subassembly between valve rod (5), a plurality of groups direction subassembly encircles valve rod (5) evenly distributed, direction subassembly and airtight device branch are located disk seat (4) both sides, and every group direction subassembly include that one end rotate connect in connecting rod (15), the rotation of disk seat (4) connect in bearing (16) of the connecting rod (15) other end, wear to locate loose joint bolt (17), threaded connection of connecting rod (15) are in nut (18) of loose joint bolt (17), loose joint bolt (17) rotate connect in disk seat (4), just nut (18) butt in connecting rod (15) and restriction connecting rod (15) turned angle, bearing (16) butt in valve rod (5) are right valve rod (5) direction.
4. The multi-seal RTO switch valve of claim 1, wherein: the fastening bolt (11) is sleeved with a spring (12), and two ends of the spring (12) are respectively abutted to the sealing sleeve (8) and the pressing sleeve (10).
5. The multi-seal RTO switch valve of claim 1, wherein: the air-tight device is characterized in that a sealing cover (19) for covering the air-tight device is connected to the outer side wall of the upper side plate (1) of the box body through bolts, and an air cylinder protection cover (20) for covering the air cylinder (7) can be detachably connected to the upper end face of the sealing cover (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542236.2U CN211009904U (en) | 2019-09-17 | 2019-09-17 | Multiple sealed RTO diverter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542236.2U CN211009904U (en) | 2019-09-17 | 2019-09-17 | Multiple sealed RTO diverter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009904U true CN211009904U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921542236.2U Active CN211009904U (en) | 2019-09-17 | 2019-09-17 | Multiple sealed RTO diverter valve |
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| Country | Link |
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| CN (1) | CN211009904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469678A (en) * | 2019-09-17 | 2019-11-19 | 上海兰宝环保科技有限公司 | A kind of multi-sealed RTO switching valve |
-
2019
- 2019-09-17 CN CN201921542236.2U patent/CN211009904U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469678A (en) * | 2019-09-17 | 2019-11-19 | 上海兰宝环保科技有限公司 | A kind of multi-sealed RTO switching valve |
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