CN201092486Y - Rotary-seal feeding valve - Google Patents
Rotary-seal feeding valve Download PDFInfo
- Publication number
- CN201092486Y CN201092486Y CNU2007200447025U CN200720044702U CN201092486Y CN 201092486 Y CN201092486 Y CN 201092486Y CN U2007200447025 U CNU2007200447025 U CN U2007200447025U CN 200720044702 U CN200720044702 U CN 200720044702U CN 201092486 Y CN201092486 Y CN 201092486Y
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- star rotor
- valve
- rotary
- sealing
- compensating device
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Abstract
The utility model provides a rotary sealing feeding valve for synchronously realizing radial and axial sealing with simple structure, which comprises a valve shell with a feed inlet and a discharge port and a star rotor in the valve shell chamber, wherein the top of the wheel disk of the star rotor is equipped with a radial space automatic compensator, the outer side of the lateral plate of the star rotor is equipped with an axial space automatic compensator. The tops of the lateral plate and the wheel disk of the star rotor are respectively equipped with the axial space automatic compensator and the radial space automatic compensator to effectively resolve the clamp problem and the sealing failure of the feeding valve caused by temperature change. The rotary sealing feeding valve has simple structure and reduced machining and assembly hardness.
Description
Technical field
The utility model relates to a kind of swivel feeding valve, relates in particular to a kind of rotary sealing feeding valve that uses under the higher temperature difference and pressure reduction environment.
Background technology
The swivel feeding valve is widely used in industries such as building materials, metallurgy, electric power, chemical industry, tobacco machine.At present, be used for the swivel feeding valve of conveying granular or granular material, generally include valve casing and the star rotor that is arranged in the valve casing chamber.According to the needs of different use occasions, star rotor and valve casing cavity wall can be contactless, and be promptly gapped between its disc top and the valve casing cavity wall face; Or contact, be leak free, zero-lash, i.e. rotary sealing feeding valve between its disc top and the valve casing cavity wall face promptly.Feed inlet and outlet on the valve casing of rotary sealing feeding valve is connected with low-pressure cavity with high pressure respectively usually, the high-low pressure chamber is separated by rotary sealing feeding valve, material is sent in the V-shaped groove that forms between each disc of star rotor from inlet point, after rotating a certain angle by rotor banding animal material, material is discharged from discharging opening, in swivel feeding, guarantee the sealing of high pressure chest.
The star rotor of original rotary sealing feeding valve and the assembly clearance between the valve casing are fixed, and along with the temperature traverse of the fluid of feed valve convey materials or packing, excessive clearance in the time of can causing low temperature can not guarantee the pressure reduction in high-low pressure chamber; The high-temperature time crack is too small, causes the star rotor clamping stagnation.In addition, along with the increase of time of run, star rotor disc end or valve casing inside face abrasion loss increase, and its gap increase causes the high-low pressure chamber to be separated and lost efficacy.
For solving above technical matters, two kinds of rotary sealing feeding valves have appearred, the one, be embedded in elastic sealing gasket at the disc end face groove of star rotor, CN97221362.7 disclosed " flexible sealing feeding lock cyclone rotary valve " for example, but this method is limited because of the elastic sealing gasket bearing capacity, wear resisting property is poor, sealing property has just disappeared behind the operation certain hour, must the frequent shutdown maintenance change packing seal; The 2nd, install sealing rigidity scraping blade additional on star rotor disc top, by improving working accuracy, realize that as much as possible star rotor contacts with the microclearance of valve body simultaneously, realize the radial clearance seals between rotor and valve casing.This method owing to processing and assembling reason, perhaps makes between rigidity scraping blade and the valve casing cavity wall too closed contact usually, causes serious friction, makes valve body produce abrasion, perhaps makes to occur between rigidity scraping blade and the valve casing cavity wall than gap greatly.
Simultaneously, above-mentioned existing rotary sealing feeding valve is not all solved the sealing problem of star rotor axial sides and valve casing, therefore can not be applicable to the seal request height, especially has the occasion of big pressure reduction, the temperature difference.
CN200520092296.0 discloses a kind of rotary seal feed valve, this feed valve is provided with two seal shoe glands in valve pocket inwall both sides, at the back side of each gland one sleeve spring pinch device is arranged all, sealing boots gland keeps no gap to contact with the disc end face of the rotary blade that rotates to its position under the effect of holddown spring, to prevent block up, the get stuck appearance of problem of feed process.But obvious, this feed valve does not have effectively to solve the compensation of play of rotary blade both sides, still can not guarantee effective sealing under higher differential pressure, temperature difference occasion.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can realize radial seal and side seal simultaneously, and rotary sealing feeding valve simple in structure.
Rotary sealing feeding valve described in the utility model, comprise valve casing that is provided with feed inlet and outlet and the star rotor that is arranged in the valve casing chamber, the disc top of star rotor is equiped with the diameter clearance automatic compensating device, and the side plate of star rotor is provided with the endplay automatic compensating device.
Described diameter clearance automatic compensating device can be following concrete structure: comprise that one is inserted in the sealing draw runner in the groove of offering on star rotor disc top, groove installing elastic element or introducing fluid pressure; The sealing draw runner is kept in touch with valve casing chamber intrados under the thrust that elastic element such as spring or fluid pressure provide.
Described diameter clearance automatic compensating device also can be the integration spring tongue piece that directly is fixed on each disc top of star rotor.
Described endplay automatic compensating device, can be following concrete structure: described endplay automatic compensating device comprises the rotary packing ring that rotates with star rotor on the biside plate that is installed in star rotor, the stationary seal ring that opposite position is installed in the valve casing chamber, and elastic element or introducing fluid pressure; Stationary seal ring is kept in touch with rotary packing ring under the thrust that elastic element or fluid pressure provide vertically.By the sealing between realization star rotor both sides of the contact between the dynamic and static seal ring and the valve casing chamber.
Described endplay automatic compensating device also can be the spring tongue piece that directly is fixed on the side plate of star rotor both sides or directly is fixed on the integration on the valve casing cavity inner wall.
In order to avoid occurring the putty problem in the use as far as possible, can meet to star rotor hand of rotation place at inlet point material scraping plate is set, in guaranteeing that material is admitted to V-shaped groove between each disc of star rotor from inlet point.
In the course of the work, when feed valve causes each parts of valve body to expand with heat and contract with cold because of temperature traverse, the diameter clearance automatic compensating device can make the sealing draw runner of the disc top end of star rotor keep in touch with the valve casing cavity wall, the endplay automatic compensating device guarantees the both sides sealing of star rotor, can gap or clamping stagnation not occur because of each parts expands with heat and contract with cold.Simultaneously, adopt this clearance automatic compensation device, the problem that can further avoid sealing part abrasion easily to lose efficacy reduces because of changing the shutdown maintenance number of times that sealing member must carry out.
The utility model is by being provided with endplay automatic compensating device and diameter clearance automatic compensating device respectively at star rotor side plate and disc item end, the temperature difference differential pressure that efficiently solves because of the workplace changes, and the clamping stagnation of the swivel feeding valve that may cause or feeding seal failure problem.Simultaneously, the utility model is simple in structure, processes also corresponding reduction with assembly difficulty.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the utility model master sectional structure scheme drawing;
Fig. 2 is the utility model left side TV structure scheme drawing;
Fig. 3 is the utility model diameter clearance automatic compensating device structure enlarged diagram;
Fig. 4 is the utility model endplay automatic compensating device structure enlarged diagram.
The specific embodiment mode
As shown in Figure 1 and Figure 2, feed valve described in the utility model comprises valve casing 1 and star rotor 2, and each disc 2-7 top of star rotor 2 is equiped with diameter clearance automatic compensating device 3; The star rotor both sides are equiped with endplay automatic compensating device 4; Radial compensation device 3 can guarantee that the slipper seal bar on the disc of star rotor contacts with valve casing 1 inwall, realizes the feed valve radial seal; Endplay automatic compensating device 4 can cut off feed valve and import and export by the fluid passage between star rotor both sides and the valve casing, guarantees the axial sealing of feed valve.
Meet to star rotor hand of rotation place at feed valve inlet point 5 material scraping plate 6 is set, in guaranteeing that material is sent into V-shaped groove on the star rotor 2 from inlet point.
As shown in Figure 3, the preferred diameter clearance compensating device of the utility model, comprise spring 2-1, compression bar 2-2, filler 2-3, slipper seal bar 2-4, above-mentioned part is pressed into successively in the disc 2-7 top groove of star rotor 2 the diameter clearance automatic compensation that thrust that produces by spring 2-1 and the balance between valve casing 1 counter-force can realize feed valve.Described groove is axially offered along each disc, and it can be the through slot with "T"-shaped cross section as shown in Figure 3, and spring 2-1 axially evenly is arranged on trench bottom along each disc; It also can be the groove that other shapes of elastomeric element and sealing draw runner can firmly be installed, for example, groove top is set to place the perforation notch that seals parts such as draw runner, the groove bottom is the groove hole that is used to place several spaces of elastic element, fully to guarantee the stable of in operational process elasticity position of components.
As shown in Figure 4, the preferred endplay automatic compensating device of the utility model comprises rotary packing ring 2-5, stationary seal ring 1-1, packing seal ring 1-2, spring retainer 1-3, spring 1-4; Spring 1-4, spring retainer 1-3, packing seal ring 1-2, stationary seal ring 1-1 are pressed into valve shell cavity successively; Rotary packing ring 2-5 is installed on star rotor side plate 2-6 neighboring, and rotates with star rotor, and an one end face contacts with stationary seal ring 1-1, and the other end is resisted against each side, disc top of star rotor.Spring 1-4 circumferentially evenly arranges along star rotor, and the balance between thrust that produces by spring 1-4 and the rotary packing ring 2-5 counter-force that is installed in star rotor side plate 2-6 periphery can realize the endplay automatic compensation of feed valve.
The elastic element of automatic backlash compensation is provided, as spring, can be according to the desired compensation of play scope in concrete workplace, and the concrete size of feed valve disc and side plate, select its concrete specification and number.
Claims (4)
1. rotary sealing feeding valve, comprise valve casing that is provided with feed inlet and outlet and the star rotor that is arranged in the valve casing chamber, the disc top of star rotor is equiped with the diameter clearance automatic compensating device, it is characterized in that: the side plate of star rotor is provided with the endplay automatic compensating device.
2. rotary sealing feeding valve as claimed in claim 1 is characterized in that: described diameter clearance automatic compensating device comprises that one is inserted in the sealing draw runner in the groove of offering on star rotor disc top, groove installing elastic element or introducing fluid pressure; The sealing draw runner is kept in touch with valve casing chamber intrados under the thrust that elastic element such as spring or fluid pressure provide.
3. rotary sealing feeding valve as claimed in claim 1, it is characterized in that: described endplay automatic compensating device comprises the rotary packing ring that rotates with star rotor on the biside plate that is installed in star rotor, the stationary seal ring that opposite position is installed in the valve casing chamber, and elastic element or introducing fluid pressure; Stationary seal ring is kept in touch with rotary packing ring under the thrust that elastic element or fluid pressure provide vertically.
4. as claim 1,2 or 3 described rotary sealing feeding valves, it is characterized in that: described inlet point is met to star rotor hand of rotation place and is provided with material scraping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200447025U CN201092486Y (en) | 2007-11-09 | 2007-11-09 | Rotary-seal feeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200447025U CN201092486Y (en) | 2007-11-09 | 2007-11-09 | Rotary-seal feeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092486Y true CN201092486Y (en) | 2008-07-30 |
Family
ID=39900450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200447025U Expired - Lifetime CN201092486Y (en) | 2007-11-09 | 2007-11-09 | Rotary-seal feeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092486Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738682A (en) * | 2014-02-13 | 2014-04-23 | 吉林烟草工业有限责任公司 | Rotary feed valve |
| CN106310830A (en) * | 2016-09-20 | 2017-01-11 | 派勒（天津）纳米技术有限公司 | Intelligent collector of dry ball-milling system |
| CN112645065A (en) * | 2021-02-02 | 2021-04-13 | 鞍山亨通高炉设备工程技术有限公司 | Rotor air-locking feeder |
| CN115557271A (en) * | 2022-10-31 | 2023-01-03 | 徐州维特比信息科技有限公司 | Prevent star type tripper of jam |
-
2007
- 2007-11-09 CN CNU2007200447025U patent/CN201092486Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738682A (en) * | 2014-02-13 | 2014-04-23 | 吉林烟草工业有限责任公司 | Rotary feed valve |
| CN103738682B (en) * | 2014-02-13 | 2017-02-08 | 吉林烟草工业有限责任公司 | Rotary feed valve |
| CN106310830A (en) * | 2016-09-20 | 2017-01-11 | 派勒（天津）纳米技术有限公司 | Intelligent collector of dry ball-milling system |
| CN112645065A (en) * | 2021-02-02 | 2021-04-13 | 鞍山亨通高炉设备工程技术有限公司 | Rotor air-locking feeder |
| CN115557271A (en) * | 2022-10-31 | 2023-01-03 | 徐州维特比信息科技有限公司 | Prevent star type tripper of jam |
| CN115557271B (en) * | 2022-10-31 | 2023-11-17 | 江苏四达重工有限公司 | Anti-blocking star discharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHISI HOLDINGS GROUP CO., LTD. Free format text: FORMER NAME: JIANGSU ZHISI MACHINERY GROUP CO., LTD |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210036 Jiangsu province Changzhou city Wujin high tech Zone Bernard Fengming Road Industrial Park Patentee after: Zhisi Holdings Group Co., Ltd. Address before: 210036 Jiangsu province Changzhou city Wujin high tech Zone Bernard Fengming Road Industrial Park Patentee before: Jiangsu Zhisi Machinery Group Co., Ltd |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |