CN2727462Y - Automatic controlled combined gas sealing system - Google Patents
Automatic controlled combined gas sealing system Download PDFInfo
- Publication number
- CN2727462Y CN2727462Y CN 200420031817 CN200420031817U CN2727462Y CN 2727462 Y CN2727462 Y CN 2727462Y CN 200420031817 CN200420031817 CN 200420031817 CN 200420031817 U CN200420031817 U CN 200420031817U CN 2727462 Y CN2727462 Y CN 2727462Y
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- CN
- China
- Prior art keywords
- sealing
- controller
- seal
- automatic control
- gas
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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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Abstract
The utility model relates to an automatic controlled combined gas sealing system which comprises a sealing mechanism and an automatic control system. The air inlet path of the main sealing mechanism is provided with a checking component, and the air inlet and the air outlet paths of the emergency sealing mechanism are respectively provided with a control valve which is controlled the on-and-off by a controller in order to provide checking signal to the controller. The utility model is characterized in that the sealing device has automatic controlling function, the sealing device can also randomly monitor the main sealing device and can start the emergency sealing and the park sealing automatically, and the utility model is safer and more reliable.
Description
Technical field the utility model relates to a kind of seal arrangement, particularly utilizes gas to carry out the automatic control composition gas seal arrangement of shaft sealing.
It is 00212401.7 dry gas seals major axis multi-level submerged pump that background technique China utility model patent discloses a kind of application number, and it is to realize sealing of spindles by sending into sealing medium (sealing gas) to main shaft seal mechanism and urgent sealing mechanism.When seal failure of main shaft seal mechanism or seal gas pressure deficiency, start promptly sealing, realize the leakage of blocking-up fed sheet of a media.The problem that exists is: the sealing condition of main shaft seal mechanism is artificial judgement and control with starting urgent sealing.Seal failure taking place, be difficult in time find and handle, cause the leakage of hazardous medium, has potential safety hazard.
The summary of the invention the purpose of this utility model is to provide a kind of and can detects automatically and control sealing mechanism, further improves the automatic control composition gas seal arrangement of its Security.
The purpose of this utility model is achieved in that a kind of automatic control composition gas seal arrangement, comprise sealing mechanism, it is characterized in that this device also is provided with automatic control system, the detection part that is used for the detected gas variation is located at the gas-entered passageway of primary seal mechanism, the output of detection part is connected with controller, for controller provides testing signal, on the air inlet of urgent sealing mechanism and exhaust passage, be respectively equipped with control valve by controller control switching, controller also is connected with motor power circuit, the electrical signal that the output automatic control motor is shut down; Described sealing mechanism is made up of primary seal mechanism, urgent sealing mechanism and parking sealer mechanism three parts.Described sealing mechanism is to be made of the parking sealer mechanism, primary seal mechanism and the urgent sealing mechanism that are successively set on from top to bottom on the axle.Described parking sealer mechanism is made of static seal and motive sealing, be arranged with on the rotating seat of motive sealing and fly iron, when rotating seat rotates with axle, the centrifugal action that flies iron will drive the rotating seat displacement, this moment, the seal face of rotating ring and stationary ring was in separated state, was provided with Returnning spring between rotating seat and motive sealing body.
The seal arrangement that the utility model provides, variation detects automatically to the primary seal air inflow by automatic control system, and testing result is sent into controller, and controller is monitored the sealing state of main shaft seal mechanism at random.If it is seal failure or seal gas pressure deficiency that primary seal mechanism sealing state changes; controller will send the instruction of shutting down and starting urgent sealing mechanism; motor quits work; urgent sealing mechanism and parking sealer mechanism with its upper and lower spatial separation sealing, block the leakage of hazardous medium gas simultaneously in time, effectively.The rotating ring of parking sealer mechanism flies iron under action of centrifugal force on its rotating seat when rotating with axle, rotating ring is separated with stationary ring, stops the friction of two anchor rings effectively, increases the service life.
Characteristics of the present utility model are: the sealing device has automatic control function, can monitor at random and start promptly automatically primary seal to seal, and uses safer, reliable.The design of parking sealer mechanism not only can realize duplicate protection, and when main shaft rotates, and has also realized separating of rotating ring and stationary ring, prolongs the working life of two seal rings.Sealing mechanism simple in structure is convenient to maintenance.The sealing device is fit to the shaft sealing to equipment such as the pump of carrying hazardous medium gas or stirred tanks.
Description of drawings Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the enlarged view of the utility model parking sealer mechanism;
Fig. 3 is the partial enlarged drawing of the utility model primary seal mechanism.
Embodiment is described further below in conjunction with accompanying drawing:
As shown in Figure 1, the seal arrangement that this programme provides is applied on the Under Water Pumps, it carries out shaft sealing to Under Water Pumps, the sealing mechanism that constitutes by primary seal mechanism 1, parking sealer mechanism 2 and urgent sealing mechanism 3, its primary seal mechanism is installed on the pump-foot 4, is provided with upper and lower stationary ring 7,8 and the rotating ring 9,10 that is enclosed within on the axle in the seal space that is formed by sealing seat 5 and sealing cover 6, is provided with spring 11 up and down between the rotating ring, guarantee that rotating ring matches with the seal face of stationary ring, see Fig. 3.Primary seal mechanism establishes urgent sealing mechanism in the below, and it is made up of sealed bladder 12 and the sealing gland seat 13 that is positioned at capsule, is fixed by the supporting plate 14 that links to each other with pump-foot.Parking sealer mechanism is located at the top of primary seal mechanism, its stationary seat 15 is fixed on the top board 17 of sealed case 16, motive sealing body 18 links to each other with axle 19, establishes Returnning spring 21 between rotating seat 20 and the motive sealing body, at two the symmetrically arranged iron 22 that fly that are externally connected to of rotating seat.During work, the rotation of axle will fly iron and throw, and it produces downward active force to rotating seat, and rotating seat is moved down, and rotating ring 23 separates with the sealing surface of stationary ring 24, avoid the sealing surface of two rings to rub mutually.When axle was not worked, rotating seat resetted under the effect of spring, and stationary ring matches with rotating ring, seals.
The detection part that is used for the detected gas variation in the automatic control system is flow transducer 25 or pressure transducer, it is located on the gas-entered passageway 26 of primary seal mechanism, is connected with respectively by controller control switching solenoid valve 29,30 on the air inlet of urgent sealing mechanism and exhaust passage 27,28.The electrical signal of flow transducer output is sent into controller 31, and mainly the controller that is made of single-chip microcomputer is differentiated it and handled.When the air inflow of primary seal mechanism gas-entered passageway changed, controller cut off motor 32 power supplys, started solenoid valve and the solenoid valve of closing on the urgent sealing mechanism exhaust passage on the urgent sealing mechanism gas-entered passageway simultaneously.Motor quits work, and pressed gas enters in the sealed bladder of urgent sealing mechanism, and the sealed bladder rising is embraced axle, the leakage of blocking-up conveying gas.Simultaneously, parking sealer mechanism is with the sealed case sealing of primary seal mechanism top, and the gas in sealed case is leaked in blocking-up, and can be by recovery approach 33 with its recovery.
Claims (2)
1, a kind of automatic control composition gas seal arrangement, comprise sealing mechanism, it is characterized in that this device also is provided with automatic control system, the detection part that is used for the detected gas variation is located at the gas-entered passageway of primary seal mechanism, the output of detection part is connected with controller, for controller provides testing signal, on the air inlet of urgent sealing mechanism and exhaust passage, be respectively equipped with control valve by controller control switching, controller also is connected with motor circuit, the electrical signal that the output automatic control motor is shut down; Parking sealer mechanism, primary seal mechanism and urgent sealing mechanism are successively set on the axle from top to bottom.
2, automatic control composition gas seal arrangement according to claim 1, it is characterized in that described parking sealer mechanism is made of static seal and motive sealing, be arranged with the iron that flies that when rotating ring rotates with axle, rotating ring can be separated with the stationary ring seal face on the rotating seat of motive sealing, between rotating seat and motive sealing body, be provided with Returnning spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031817 CN2727462Y (en) | 2004-05-29 | 2004-05-29 | Automatic controlled combined gas sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031817 CN2727462Y (en) | 2004-05-29 | 2004-05-29 | Automatic controlled combined gas sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727462Y true CN2727462Y (en) | 2005-09-21 |
Family
ID=35043477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031817 Expired - Fee Related CN2727462Y (en) | 2004-05-29 | 2004-05-29 | Automatic controlled combined gas sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727462Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865142A (en) * | 2010-05-17 | 2010-10-20 | 张继华 | Multi-level submerged pump with leak detecting and alarming device |
| CN102072322A (en) * | 2011-01-31 | 2011-05-25 | 江苏金鹰流体机械有限公司 | Combined type sealing device with double end faces |
| CN103982246A (en) * | 2014-05-21 | 2014-08-13 | 中冶南方工程技术有限公司 | Ammonia water turbine sealing system taking nitrogen as seal medium |
| CN105156351A (en) * | 2015-09-11 | 2015-12-16 | 中国神华能源股份有限公司 | Control system of dry-gas sealed centrifugal pumps |
-
2004
- 2004-05-29 CN CN 200420031817 patent/CN2727462Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865142A (en) * | 2010-05-17 | 2010-10-20 | 张继华 | Multi-level submerged pump with leak detecting and alarming device |
| CN102072322A (en) * | 2011-01-31 | 2011-05-25 | 江苏金鹰流体机械有限公司 | Combined type sealing device with double end faces |
| CN103982246A (en) * | 2014-05-21 | 2014-08-13 | 中冶南方工程技术有限公司 | Ammonia water turbine sealing system taking nitrogen as seal medium |
| CN105156351A (en) * | 2015-09-11 | 2015-12-16 | 中国神华能源股份有限公司 | Control system of dry-gas sealed centrifugal pumps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Qing Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 Termination date: 20090629 |