CN1177686A - Liquid-working-medium self-filling sealing method - Google Patents
Liquid-working-medium self-filling sealing method Download PDFInfo
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- CN1177686A CN1177686A CN 96120690 CN96120690A CN1177686A CN 1177686 A CN1177686 A CN 1177686A CN 96120690 CN96120690 CN 96120690 CN 96120690 A CN96120690 A CN 96120690A CN 1177686 A CN1177686 A CN 1177686A
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Abstract
The self-filling sealing method for liquid working medium includes a special-purpose equipment formed of main sealing surface, sealing chamber covering main sealing surface, auxiliary sealing surface, medium-supply system connected to sealing chamber and collector for collecting exuded medium. The main sealing surface and auxiliary sealing surface are formed to clearance-fitted sealing surface which is completely covered with working medium in the sealing chamber, and the working medium exuded from auxiliary sealing surface is collected by said collector and discharged, and the sealing chamber is communicated to the medium supply system, so that the sealing chamber is filled up with the working medium, therefore its sealing property is reliable, maintenance is convenient and service life is long.
Description
The present invention relates to the liquid-working-medium dynamic sealing method, a kind ofly specifically self-filling sealing is carried out at the position of needs sealings, make the material of leakage be the encapsulating method of working medium with working medium.
Motive sealing has its crucial status in machinery and scientific experimentation instrument, conventional encapsulating method as: packing seal, seal ring sealing etc. all exist the friction power consumption big, wear out failure, the life-span such as lacks at problem.
The purpose of this invention is to provide a kind of liquid-working-medium self-filling sealing method, have reliable operation, do not have directly wearing and tearing, no stuffing box packing, long lifetime and characteristics such as simple in structure are with a wide range of applications.
The object of the present invention is achieved like this:
A kind of liquid-working-medium self-filling sealing method is applied to such as centrifugal pump, use occasions such as vacuum pump, and described method comprises:
A, an isolated plant, this installs mainly by primary sealing area, coats the closed chamber of primary sealing area, secondary sealing area, the medium supply system that is connected with closed chamber oozes out the medium collection device and forms;
B, primary sealing area and secondary sealing area are the sealing surface of two pairs of Spielpassung, working medium in the closed chamber coats sealing surface fully, and makes between two pairs of sealing surfaces and be full of working medium, and the seepage between the sealing surface is working medium, prevent gas leap up into, thereby formed sealing to sealing surface;
C, the working medium that outwards oozed out by secondary sealing area collect and discharge by oozing out the medium collection device, and closed chamber is connected with the medium supply system, and supplies with working medium by the medium supply system, is full of working medium in the assurance closed chamber.
During enforcement, described primary sealing area (2) secondary sealing area (4) is the sealing surface of two pairs of Spielpassung, contain working medium in the medium supply system (5) and be communicated with closed chamber (3), make working medium be full of closed chamber (3), formation is to the coating of primary sealing area (2) and secondary sealing area (4), and make in primary sealing area (2) and sealing surface (4) gap separately and be full of working medium, ooze out medium collection device (6) and be provided with liquid port (7) and will draw by the working medium that secondary sealing area is discharged.
Described sealing surface can be an anchor ring, the surface of plane or other shape.
Described medium supply system can adopt multi-form, as: liquid tank, pump, methods such as pipeline.
Described liquid-working-medium can be liquid such as water, oil, chemical raw material.
This by closed chamber, sealing surface and medium supply system, ooze out the working-medium self-filling sealing that parts such as medium collection device are formed, by pipeline working medium is full of closed chamber by the medium supply system, working medium coats sealing surface fully, and the gap between two relative motion surface of filling primary sealing area, all effusions are working medium, thereby prevented the suction or the seepage of gas reliably, collected discharge by oozing out the medium collection device by the working medium that secondary sealing area outwards oozes out.
During enforcement,,, also can prevent to reveal in the mode that secondary sealing area adds seal ring as strong acid and strong base to not allowing the working medium of leakage.
The present invention has following beneficial effect:
1, reliable operation because all seepages are working medium, therefore can guarantee sealing effect, and the method for filling sealing voluntarily need not filler, does not have wearing and tearing, therefore the destruction that can not produce the working state that causes owing to seal fails.
2. simple in structure, compare with packing seal or other seal form that it is simple in structure, and maintenance is very easy with maintenance.
3, the long lifetime owing to there are not directly wearing and tearing between the sealing surface, can prolong its working life greatly, even sealing surface natural wastage gap is strengthened, also can not produce the problem of seal failure.
4, increase work efficiency, owing to the friction power loss of having eliminated between stuffing box packing and main shaft, the transmission efficiency height, energy-conservation.
5, of many uses, because working-medium self-filling sealing has above characteristics, its purposes is very extensive, as at centrifugal pump, uses on the equipment such as vacuum pump and all can obtain effect preferably.
Now in conjunction with the accompanying drawings with preferred embodiment.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the present invention is applied to the embodiment's schematic representation on the liquid-ring vacuum pump
Fig. 3 is embodiment's schematic representation that the present invention is applied to centrifugal pump
Sealing method for self-filling working of the present invention, basic structure are as shown in Figure 1.
Main shaft (1) passes and oozes out medium collection device (6), secondary sealing area (4), closed chamber (3) and primary sealing area (2), between main shaft (1) and primary sealing area (2), the secondary sealing area (4) for being slidingly matched, contain working medium in the medium supply system (5) and be communicated with closed chamber (3), make working medium be full of closed chamber (3), formation is to the coating of main shaft (1) and make primary sealing area (2) and secondary sealing area (4) is full of working medium, ooze out medium collection device (6) and be provided with liquid port (7), will draw by the working medium that secondary sealing area is discharged.
Described working medium can be water, oil, fluid chemical raw material and other liquid during enforcement.
Because working medium makes all infiltrations and leakage on the primary sealing area (2) be working medium to the coating of primary sealing area (2), thereby realized sealing, the working medium that is leaked by secondary sealing area (4) is located to be collected the back and is discharged by exhaust port (7) oozing out medium collection device (6).
The embodiment of the present invention on liquid-ring vacuum pump as shown in Figure 2.
Main shaft (1) enters the pump housing (8) and impeller (9) is housed in the end behind the working-medium self-filling sealing that passes as shown in Figure 1, under the suction function in the pump housing (8), working medium infiltrates from primary sealing area (2), the working medium that infiltrates has formed liquid film between the pump housing (8) and impeller, be equivalent between each blade of impeller and the pump housing, form working-medium self-filling sealing again, formed the sealing between the impeller (9) and the pump housing (8).
The present invention be applied on the centrifugal pump embodiment as shown in Figure 3.
Main shaft (1) rotates under the support of bearing unit (14), main shaft (1) enters pump case (8) and locates to be provided with a closed chamber (3), impeller (9) is installed on main shaft (1) end, pump case (8) is provided with liquid entering hole (10) and liquid outlet (11), liquid outlet (11) has been located pipeline (12), valve (13) is communicated with closed chamber (3), when main shaft (1) impeller (9) is rotated, liquid in the pump case (8) is discharged from liquid outlet (11) under action of centrifugal force, the liquid that the moving liquid entering hole (10) of formation negative pressure suction is located in the pump case (8) enters pump case (8), form continuous operation, the liquid part that liquid outlet (11) is located is introduced closed chamber (3) by pipeline (12) through valve (13) and is made full of liquid in the closed chamber (3), main shaft (1) is entered pump case (8) to be located to be coated by liquid, thereby prevented the air-breathing of gas, reach the purpose of sealing, described pipeline (12) locates to be provided with valve (13), enter the amount of closed chamber (3) liquid in order to adjustment, make it both guarantee closed chamber (3) full of liquid, do not cause too much loss again.
On the basis of above-mentioned working principle, can carry out deformation design adapting to different requirements, as:
(1) sealing surface can be an anchor ring, the surface of plane or other shape.
(2) sealing surface, closed chamber and other parts can adopt different materials as stainless steel, macromolecular material and other material as required.
(3) the medium supply system can adopt multi-form, as: modes such as liquid tank, pump, pipeline guarantee to be full of in the closed chamber working medium.
What (four) ooze out that the medium collection device collects oozes out the recyclable or discharging of medium.
(5) working medium can be liquid such as water, oil, chemical raw material.
Claims (5)
1, a kind of liquid-working-medium self-filling sealing is a method, is applied to such as centrifugal pump, and use occasions such as vacuum pump is characterized in that: described method comprises
A, an isolated plant, this installs mainly by primary sealing area, coats the closed chamber of primary sealing area, secondary sealing area, the medium supply system that is connected with closed chamber oozes out the medium collection device and forms;
B, primary sealing area and secondary sealing area are the sealing surface of two pairs of Spielpassung, working medium in the closed chamber coats sealing surface fully, and makes between two pairs of sealing surfaces and be full of working medium, and the seepage between the sealing surface is working medium, prevent gas leap up into, thereby formed sealing to sealing surface;
C, the working medium that outwards oozed out by secondary sealing area collect and discharge by oozing out the medium collection device, and closed chamber is connected with the medium supply system, and supplies with working medium by the medium supply system, is full of working medium in the assurance closed chamber.
2, liquid-working-medium self-filling sealing method as claimed in claim 1, it is characterized in that: described primary sealing area (2) secondary sealing area (4) is the sealing surface of two pairs of Spielpassung, contain working medium in the medium supply system (5) and be communicated with closed chamber (3), make working medium be full of closed chamber (3), formation is to the coating of primary sealing area (2) and secondary sealing area (4), and make in primary sealing area (2) and sealing surface (4) gap separately and be full of working medium, ooze out medium collection device (6) and be provided with liquid port (7) and will draw by the working medium that secondary sealing area is discharged.
3, liquid-working-medium self-filling sealing method as claimed in claim 1 is characterized in that: described sealing surface can be an anchor ring, the surface of plane or other shape.
4, liquid-working-medium self-filling sealing method as claimed in claim 1 is characterized in that: described medium supply system can adopt multi-form, as: liquid tank, pump, methods such as pipeline.
5, liquid-working-medium self-filling sealing method as claimed in claim 1 is characterized in that: described liquid-working-medium can be liquid such as water oil, chemical raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120690A CN1089875C (en) | 1996-11-21 | 1996-11-21 | Liquid-working-medium self-filling sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120690A CN1089875C (en) | 1996-11-21 | 1996-11-21 | Liquid-working-medium self-filling sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1177686A true CN1177686A (en) | 1998-04-01 |
| CN1089875C CN1089875C (en) | 2002-08-28 |
Family
ID=5126513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96120690A Expired - Fee Related CN1089875C (en) | 1996-11-21 | 1996-11-21 | Liquid-working-medium self-filling sealing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089875C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086936A (en) * | 2009-12-08 | 2011-06-08 | 张意立 | Novel matching device with improved fluid sealing structure |
| CN106181532A (en) * | 2015-04-29 | 2016-12-07 | 无锡博华机电有限公司 | Central water outlet automatic tool changing electrical spindle negative pressure dehumidifier protection against leakage structure |
| CN109414851A (en) * | 2016-06-22 | 2019-03-01 | 株式会社日轮 | Sealing device and have its rubber hose continuous plus sulphur device and encapsulating method and the rubber hose for having it continuous vulcanization method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205750U (en) * | 1987-04-02 | 1988-01-27 | 许建中 | Liquid pressure increased sealing structure |
-
1996
- 1996-11-21 CN CN96120690A patent/CN1089875C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086936A (en) * | 2009-12-08 | 2011-06-08 | 张意立 | Novel matching device with improved fluid sealing structure |
| CN102086936B (en) * | 2009-12-08 | 2013-06-19 | 张意立 | Novel matching device with improved fluid sealing structure |
| CN106181532A (en) * | 2015-04-29 | 2016-12-07 | 无锡博华机电有限公司 | Central water outlet automatic tool changing electrical spindle negative pressure dehumidifier protection against leakage structure |
| CN106181532B (en) * | 2015-04-29 | 2018-11-09 | 无锡博华机电有限公司 | Central water outlet automatic tool changing electrical spindle negative pressure dehumidifier protection against leakage structure |
| CN109414851A (en) * | 2016-06-22 | 2019-03-01 | 株式会社日轮 | Sealing device and have its rubber hose continuous plus sulphur device and encapsulating method and the rubber hose for having it continuous vulcanization method |
| CN109414851B (en) * | 2016-06-22 | 2020-02-18 | 株式会社日轮 | Sealing device, continuous vulcanization device for rubber hose provided with sealing device, sealing method, and continuous vulcanization method for rubber hose provided with sealing device |
| US11161278B2 (en) | 2016-06-22 | 2021-11-02 | Nichirin Co., Ltd. | Sealing device and rubber hose continuous vulcanizing device provided with same, and sealing method and rubber hose continuous vulcanizing method provided with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1089875C (en) | 2002-08-28 |
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