CN201496575U - Sealing valve used under high-temperature environment - Google Patents
Sealing valve used under high-temperature environment Download PDFInfo
- Publication number
- CN201496575U CN201496575U CN2009202065753U CN200920206575U CN201496575U CN 201496575 U CN201496575 U CN 201496575U CN 2009202065753 U CN2009202065753 U CN 2009202065753U CN 200920206575 U CN200920206575 U CN 200920206575U CN 201496575 U CN201496575 U CN 201496575U
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- China
- Prior art keywords
- stuffing box
- transmission shaft
- seal
- cooling water
- valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Valves (AREA)
Abstract
The utility model discloses a sealing valve used under high-temperature environment. The sealing valve comprises a valve seat, a valve seat cooling system, a valve plate, a corrugated pipe compensator, a drive shaft, a driving device and a sealing sleeve, wherein the sealing sleeve is used for sealing gaps between the drive shaft and lower sealing medium, and is a double-sealing structure of filler sealing and air sealing, and the valve seat, the valve plate, the drive shaft and the drive shaft sealing sleeve are respectively provided with one set of or one corresponding cooling system. The sealing valve avoids the weakness that a traditional sealing valve adopts rubber and the like as sealing material, and can not be used under high-temperature environment, and improves the work reliability under high-temperature.
Description
Technical field
The utility model discloses a kind of seal valve that in metallurgy industry ironmaking system hot environment, is used to cut off furnace charge, be applicable to that seal container has the sealing that relatively rotates axle.
Background technique
Present metallurgy industry, mainly there is following problem in the employed clock-type seal valve of blast furnace system particularly: the one, after material has been arranged, on valve and the surface that valve plate is contacted a large amount of dust or even small particles material are arranged, cause the process of valve seal smooth inadequately, sealing effect is bad; The 2nd, traditional seal valve, can not be worked under hot environment as sealing material with materials such as rubber; The 3rd, belong to rigid sealing for seal valve, sealing surface easily wearing and tearing causes sealing effect not good, the serious seal action that do not have.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of seal valve that can manipulate under hot environment, solve traditional seal valve with materials such as rubber as sealing material, the difficult problem that can not under hot environment, work.
The utility model adopts such technological scheme to realize, the seal valve that uses under a kind of hot environment, it comprise valve seat, valve plate, transmission shaft, transmission device and be arranged on transmission shaft and valve plate between corrugated expansion joint; It is characterized in that: described transmission shaft is a hollow shaft; Adopt stuffing box gland to seal between transmission shaft and the lower seal medium; Stuffing box gland is installed in the hermetically sealed case; Hermetically sealed case is connected with seal container by screw with stuffing box gland; Stuffing box gland front end screw is connected with the packing seal gland; Respectively be provided with a cover corresponding cooling on described valve seat, valve plate, transmission shaft and the transmission shaft stuffing box gland.
In order to make seal valve reliably working at high temperature, the utility model adopts stuffing box gland to seal in transmission shaft and seal container between the lower seal medium, simple in structure, is easy for installation and removal.
Stuffing box gland is the double seal that packing seal and hermetic seal combine; Packing seal is a stuffing box packing oiling ring form; Hermetic seal is the pressurized gas sealings.
Stuffing box packing places on the surface of contact of stuffing box gland and transmission shaft, and compresses by the packing seal gland in left side; Oil ring is arranged in the middle of the stuffing box packing, and oil ring communicates with the ring-oil mouth by lubrication channel; Lubricant oil enters oil ring by the ring-oil mouth, filler is lubricated, to strengthen sealing.
Right side, stuffing box gland internal surface in stuffing box packing are set with gas-tight ring; Gas-tight ring contacts with transmission shaft, and is the annulus layout along transmission shaft, on the gas-tight ring circumference through hole is arranged; The ring airtight chamber interior with being located at stuffing box gland, gas-tight ring upper end communicates, and airtight chamber is connected with the pressurized gas passage.
During work, on the one hand pressurized gas enter into airtight chamber by gas channel, and after one week of circulation, the through hole on gas-tight ring sprays continuously, forms airtight high pressure compression ring at the transmission shaft outer peripheral surface in stuffing box gland, prevent that high-temperature high-pressure medium from scurrying outward; On the other hand, oil ring and stuffing box packing are also played the effect of sealing high-temperature high-pressure medium under the extruding of gland.
In order to guarantee seal valve reliably working at high temperature, the utility model respectively is provided with a cover corresponding cooling on described valve seat, valve plate, transmission shaft.
Cooling water system on the valve seat is arranged on the valve seat top, comprises cooling water intake, cooling water chamber, coolant outlet, and wherein cooling water chamber is the circular shape groove that is arranged on the valve seat, and its two ends communicate with cooling water intake and coolant outlet respectively.Cooling water enters the valve seat cooling water chamber by cooling water intake, and circulation cooling valve seat flowed out from coolant outlet after one week in valve seat.
Valve plate and transmission shaft adopt a jacket water system to cool off, and this cooling system comprises cooling water intake, water-cooling tube, valve plate cooling water chamber and coolant outlet; Wherein the cooling water intake joint is a swivel joint, installs with axis coinciding, can make cooling water enter axis body smoothly in the transmission shaft rotation process; The valve plate cooling water chamber is the circular shape groove that is arranged on the valve plate, and this ring shaped slot communicates with two corrugated expansion joints; Water-cooling tube is one to be arranged in the transmission shaft hollow core and to pass the hollow metal tube of ripple die portion, and two of water-cooling tube communicates with cooling water intake and valve plate cooling water chamber respectively; Coolant outlet communicates on transmission shaft top and with driving axle center portion.Cooling water enters water-cooling tube from the transmission shaft cooling water intake, enters the valve plate cooling water chamber through an end corrugated expansion joint and after one week, enters into the transmission shaft hollow core around valve plate from the corrugated expansion joint of the other end, finally flows out through the transmission shaft coolant outlet.Valve plate will descend the high-temperature gas in the airtight medium to intercept mutually with the external world with the interior cooling system of transmission shaft, make the transmission shaft cooling.
Be provided with cooling system in the transmission shaft stuffing box gland, comprise stuffing box gland cooling water intake, cooling water chamber and stuffing box gland coolant outlet; Cooling water enters the transmission shaft stuffing box gland from the stuffing box gland cooling water intake, and in the stuffing box gland cooling water chamber, cooling water flows out from the stuffing box gland coolant outlet after being full of cooling water chamber, and the high-temperature gas in the confined space is intercepted mutually with the external world.
To the valve seat cooling water system transmission shaft stuffing box gland cooling system of unifying, its cooling water intake and coolant outlet can exchange respectively.
The utility model passes through to adopt the gentle sealing configuration of dual packing seal, and is provided with corresponding cooling on valve seat, valve plate, transmission shaft, has improved the reliability that valve is worked under hot environment.
Description of drawings
Fig. 1 is of the present utility model cuing open to view;
Fig. 2 is a transmission shaft stuffing box gland structure diagram of the present utility model;
Fig. 3 is axle survey views such as transmission shaft stuffing box gland 3D of the present utility model;
Fig. 4 is a transmission shaft cooling water turnover pipe sketch of the present utility model.
Among the figure, 1-valve seat, 2-valve seat cooling water chamber, 3-valve plate, 4-valve plate cooling water chamber, 5-corrugated expansion joint, 6-transmission shaft, the 7-ball pivot, 8-lower seal medium, 9-stuffing box gland, the 10-transmission device, the last sealing medium of 11-, 12-packing seal gland, the 13-stuffing box packing, 14-oil ring, 15-hermetically sealed case, the 16-seal container, 17-gas channel, the airtight chamber of 18-, the 19-gas-tight ring, 20-swivel joint, 21-fixing device, the 22-cooling water intake, 23-coolant outlet, 24-transmission shaft cooling water intake, 25 transmission shaft coolant outlets, 26-water-cooling tube, 27-stuffing box gland cooling water intake, 28-ring-oil mouth, 29-stuffing box gland coolant outlet, 30-stuffing box gland cooling water chamber.
Embodiment
With reference to the accompanying drawings the utility model is described further, but the utility model not only is confined to this.
Embodiment, a kind of seal valve that can under hot environment, use, it comprises valve seat 1, valve plate 3, transmission shaft 6, transmission device 10 and corrugated expansion joint 5; Described transmission device 10 cooperates with transmission shaft 6 front ends by bearing, and by locating with transmission shaft 6 friction tight fixing devices 21; Described transmission device 10 drives transmission shaft 6 and rotates; Transmission shaft 6 is a hollow shaft; Transmission shaft 6 adopts ball pivot 7 to connect with valve plate 3, adopts flange connection to be fixed with two cover hollow bellows compensators 5 between transmission shaft 6 and the valve plate 3; Two cover corrugated expansion joints 5 are arranged symmetrically in ball pivot 7 both sides; Sealing medium 11 on having between described valve seat 1 and the valve plate 3, lower seal medium 8 is positioned at the zone line that is surrounded by valve seat 1, valve plate 3 and transmission shaft 6; Adopt stuffing box gland 9 to seal between transmission shaft 6 and the lower seal medium 8; Stuffing box gland 9 is the double seal form that packing seal and gas tight seal combine; Wherein the stuffing box packing in the packing seal 13 places on the surface of contact of stuffing box gland 9 and transmission shaft 6, and the centre of stuffing box packing 13 is provided with oil ring 14, and lubricant oil enters 14 pairs of stuffing box packing 13 of oil ring by ring-oil mouth 28 and is lubricated, to strengthen sealing; The packing seal gland 12 in left side is screwed on stuffing box gland 9, and 12 pairs of stuffing box packing 13 of packing seal gland and oil ring 13 push and guarantee that its sealing is reliable.
Gas-tight ring 19 is sleeved in the stuffing box gland 9, and on the surface of contact of the right side, stuffing box gland 9 that is positioned at stuffing box packing 13 and transmission shaft 6, is annulus and arranges; On gas-tight ring 19 circumference through hole is arranged; Gas-tight ring 19 upper ends communicate with the airtight chamber 18 of ring that is located at stuffing box gland interior 9, and airtight chamber 18 is connected with gas channel 17.
Transmission shaft stuffing box gland 9 is contained in the hermetically sealed case 15, stuffing box gland 9 and hermetically sealed case 15 by screw on the wall of seal container 16.Pressurized gas enter into airtight chamber 18 by gas channel 17, in stuffing box gland 9 circulation one week after, through hole on gas-tight ring 19 sprays continuously, forms airtight high pressure compression ring and acts on transmission shaft 6 circumference and seal, and the high-temperature gas in the confined space is intercepted mutually with the external world.
On described valve seat 1, valve plate 3, transmission shaft 6 and stuffing box gland 9, respectively be provided with a cover corresponding cooling.
The valve seat cooling water system that is arranged on valve seat 1 top is made up of cooling water intake 22, cooling water chamber 2, coolant outlet 23.Cooling water enters circular shape cooling water chamber 2 on the valve seat 1 through cooling water intake 22, and circulation cooling valve seat flowed out from coolant outlet 23 after 1 one weeks in valve seat 3.
A jacket water system is adopted in the cooling of valve plate 3 and transmission shaft 6, and the cooling water intake joint adopts the swivel joint of installing with axis coinciding 20; Two of water-cooling tube 26 communicates with cooling water intake 24 and valve plate cooling water chamber 4 respectively; Coolant outlet 25 communicates on transmission shaft 6 tops and with transmission shaft 6 heart portions.Cooling water enters the water-cooling tube 26 of corrugated expansion joint 5 heart portions that are positioned at transmission shaft 6 heart portions and pass from cooling water intake 24, corrugated expansion joint 5 through an end enters the circular shape cooling water chamber 4 that is positioned on the valve plate 3 again, around valve plate after 3 one weeks, from the corrugated expansion joint 5 of the other end, enter into transmission shaft 6, finally flow out through transmission shaft coolant outlet 25.
The cooling water of transmission shaft stuffing box gland 9 cooling systems enters transmission shaft stuffing box gland 9 from stuffing box gland cooling water intake 27, arrives in the stuffing box gland cooling water chamber 30, and cooling water flows out from stuffing box gland coolant outlet 29 around being full of cooling water chamber 30 backs.
To the valve seat cooling water system, its cooling water intake 22 and coolant outlet 23 are interchangeable.
To transmission shaft stuffing box gland cooling water system, its cooling water intake 27 and coolant outlet 29 are interchangeable.
Claims (8)
1. seal valve that can under hot environment, use, it comprise valve seat (1), valve plate (3), transmission shaft (6), transmission device (10) and be arranged on transmission shaft and valve plate between corrugated expansion joint (5); It is characterized in that: described transmission shaft (6) is a hollow shaft; Adopt stuffing box gland (9) to seal between transmission shaft (6) and the interior lower seal medium of seal container (16) (8); Stuffing box gland (9) is installed in the hermetically sealed case (15); Hermetically sealed case (15) is connected with seal container (16) by screw with stuffing box gland (9); Stuffing box gland (9) front end screw is connected with packing seal gland (12); Respectively be provided with a cover corresponding cooling on described valve seat (1), valve plate (3), transmission shaft (6) and the transmission shaft stuffing box gland (9).
2. the seal valve that can use under hot environment as claimed in claim 1 is characterized in that: stuffing box gland (9) is the double seal form that packing seal and hermetic seal combine; Packing seal is stuffing box packing (13) oiling ring (a 14) form; Hermetic seal is the pressurized gas sealings.
3. the seal valve that can use under hot environment as claimed in claim 2 is characterized in that: stuffing box packing (13) places on the surface of contact of stuffing box gland (9) and transmission shaft (6), and compresses by the packing seal gland (12) in left side; Oil ring (14) is arranged in the middle of the stuffing box packing (13), and oil ring (14) communicates with ring-oil mouth (29) by lubrication channel.
4. the seal valve that can use under hot environment as claimed in claim 2 is characterized in that: gas-tight ring (19) is sleeved in the stuffing box gland (9), and on the surface of contact of the right side, stuffing box gland (9) that are positioned at stuffing box packing (13) and transmission shaft (6); Gas-tight ring (19) is annulus along transmission shaft (6) and arranges; On gas-tight ring (19) circumference through hole is arranged; The ring airtight chamber (18) interior with being located at stuffing box gland (9), gas-tight ring (19) upper end communicates; Airtight chamber (18) is connected with pressurized gas passage (17).
5. the seal valve that uses under hot environment as claimed in claim 1 is characterized in that: the cooling water system of described valve seat (1) is arranged on valve seat (1) top, comprises cooling water intake (22), cooling water chamber (2), coolant outlet (23).
6. the seal valve that uses under hot environment as claimed in claim 1 is characterized in that: valve plate (3) and transmission shaft (7) adopt a jacket water system to cool off; This cooling system comprises cooling water intake (24), water-cooling tube (26), valve plate cooling water chamber (4) and coolant outlet (25); Wherein the cooling water intake joint is swivel joint (20), installs with axis coinciding; Water-cooling tube (26) is one to be arranged in transmission shaft (6) hollow core and to pass the hollow metal tube of bellows (5) heart portion; Valve plate cooling water chamber (4) is for being arranged on the circular shape groove of (3) on the valve plate, two of water-cooling tube (26) communicates with cooling water intake (24) and valve plate cooling water chamber (4) respectively, and coolant outlet (25) communicates on transmission shaft (6) top and with transmission shaft (5) heart portion.
7. the seal valve that uses under hot environment as claimed in claim 1 is characterized in that: transmission shaft stuffing box gland (9) cooling system comprises stuffing box gland cooling water intake (27), stuffing box gland cooling water chamber (30) and stuffing box gland coolant outlet (29).
8. as claim 5 or the 7 described seal valves that use under hot environment, it is characterized in that: cooling water intake (22) and coolant outlet (23) in the cooling water system of valve seat (1) can exchange; Cooling water intake (27) and coolant outlet (29) in transmission shaft stuffing box gland (9) cooling water system can exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202065753U CN201496575U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202065753U CN201496575U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496575U true CN201496575U (en) | 2010-06-02 |
Family
ID=42439782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202065753U Expired - Fee Related CN201496575U (en) | 2009-09-30 | 2009-09-30 | Sealing valve used under high-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496575U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330145A (en) * | 2011-09-28 | 2012-01-25 | 上海汉虹精密机械有限公司 | Single crystal furnace isolation system |
| CN102644762A (en) * | 2012-04-20 | 2012-08-22 | 中冶南方工程技术有限公司 | Novel double-action sealing valve of blast furnace |
| CN105351620A (en) * | 2015-12-03 | 2016-02-24 | 兰州高压阀门有限公司 | Water-cooled valve seat structure of 1500-DEG C ultrahigh temperature valve |
-
2009
- 2009-09-30 CN CN2009202065753U patent/CN201496575U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330145A (en) * | 2011-09-28 | 2012-01-25 | 上海汉虹精密机械有限公司 | Single crystal furnace isolation system |
| CN102330145B (en) * | 2011-09-28 | 2016-05-04 | 上海汉虹精密机械有限公司 | Single crystal furnace isolation system |
| CN102644762A (en) * | 2012-04-20 | 2012-08-22 | 中冶南方工程技术有限公司 | Novel double-action sealing valve of blast furnace |
| CN105351620A (en) * | 2015-12-03 | 2016-02-24 | 兰州高压阀门有限公司 | Water-cooled valve seat structure of 1500-DEG C ultrahigh temperature valve |
| CN105351620B (en) * | 2015-12-03 | 2017-10-17 | 兰州高压阀门有限公司 | The water cooling valve seat construction of 1500 DEG C of superhigh temperature valves |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20180930 |