CN2893246Y - Multilayer sealing device for slag slurry pump under liquid - Google Patents
Multilayer sealing device for slag slurry pump under liquid Download PDFInfo
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- CN2893246Y CN2893246Y CN 200620070088 CN200620070088U CN2893246Y CN 2893246 Y CN2893246 Y CN 2893246Y CN 200620070088 CN200620070088 CN 200620070088 CN 200620070088 U CN200620070088 U CN 200620070088U CN 2893246 Y CN2893246 Y CN 2893246Y
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- pump
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- impeller
- pump cover
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Abstract
A multi-layer sealing device for the liquid slurry roughing pump relates to an axial sealing structure for the slurry pump. A double row angular contacts ball bearings (1) ; the ball bearings (5) are respectively arranged at the upper part and the lower part of the bearing seat (3) that are respectively provided with a bearing pressing cover and a bearing mechanical-seal pressing cover (4), while the external rings at the upper part and the lower part of the bearing seat (3) are respectively connected with a joining short pipe and a pump cover (7); the upper end of the principal axis (2) is connected with a resilient coupling through a transmission shaft, while the lower end is provided with an auxiliary impeller (8) and an impeller (10) by a key (15) and locked at the lower end face of the principal axis (2) by an impeller gasket (12), bolts (13) and a stop pin (14). The double end mechanic seal (6) is arranged on the principal axis (2) between the bearing mechanical-seal pressing cover (4) and the pump cover (7) that is connected with the inner pump cover (9) and the pump body (11) through bolts. The utility model has the advantages of long service life and no leakage.
Description
Technical field:
The utility model slag slurry pump under liquid relates to the sealing configuration of the axial seal of slag slurry pump under liquid with multi-level seal arrangement, belongs to multi-level seal arrangement field.
Background technique:
According to the analysis of the theoretical stream field of two-phase flow, the movement velocity of contained solid particle will produce serious erosive wear much larger than the flowing velocity of liquid to the overcurrent part of pump in the liquid under the acceleration shock of solid particle; Small solid particle enters the part matching gap easily, forms card, mill, has a strong impact on the pump rotor traveling comfort; The solid particle that enters seal area destroys mechanical seal easily.No matter this shows, be erosive wear, or ipt card, mill, and the mechanical seal inefficacy, shortened, for this reason in the life-span of pump greatly, the axial seal of slag slurry pump under liquid should be adopted novel sealing structure, to do new design at the specific factor of carrying abrasion, corrosivity slag slurry.
Summary of the invention:
The purpose of this utility model provides the multi-level seal arrangement of a kind of slag slurry pump under liquid, the forward and backward cover plate of impeller is provided with back blade and seals, in addition, and stator blade, sub-propeller and the double mechanical seal of pump cover in being provided with, seal, thereby form multi-layer sealed apparatus structure.
The multi-level seal arrangement of a kind of slag slurry pump under liquid, it comprises double-row angular contact bal bearing (1), main shaft (2), bearing support (3), bearing machine sealed cover (4), ball bearing (5), double mechanical seal (6), pump cover (7), sub-propeller (8), interior pump cover (9), impeller (10), the pump housing (11) and some connection fastening pieces, it is characterized in that double-row angular contact bal bearing (1) and ball bearing (5) are installed in the upper and lower in the bearing support (3) respectively; Bearing support (3) top and bottom are equipped with bearing gland and bearing machine sealed cover (4) by link respectively, and outer ring, bearing support (3) upper end and outer ring, bottom are connected the nozzle stub and the pump cover (7) of multi-range transmission respectively by link; Main shaft (2) upper end is connected by elastic coupling flexible coupling with the transmission shaft of multi-range transmission; Main shaft (2) lower end is equipped with sub-propeller (8) and impeller (10) by key (15), and is locked on main shaft (2) lower end surface by impeller packing ring (12), screw (13) and stop pin (14); Double mechanical seal (6) is installed on the main shaft (2) between bearing machine sealed cover (4) and the pump cover (7), and pump cover (7) is connected by screw with interior pump cover (9), the pump housing (11).
Now as follows with the structure and the function description thereof of the multi-level sealing in the multi-level seal arrangement to the utility model slag slurry pump under liquid:
1, on the forward and backward cover plate of impeller, designs back blade, the plane, the outside of back blade and interior pump cover forms the first layer sealing, solid particle enters low pressure area (seal area, matching gap district) in the liquid of retardance zone of high pressure, make in the liquid solid particle overwhelming majority in pump housing runner and impeller back blade runner, and under centrifugal action, constantly discharge, avoid solid particle to be integrated into dirt with liquid stream.Prevent that effectively solid particle from carrying out seal area, improved the working life of mechanical seal and the stationarity of pump operation.
2, be provided with stator blade in the inboard of interior pump cover, with the plane formation second layer sealing of sub-propeller.
3, sub-propeller and pump cover are set and form the three-layer sealedly, by the sub-propeller action of centrifugal force, further effectively the blocking-up solidliquid mixture carries out seal area, reach sealing fully, and, under the synergy of sub-propeller, can also reach the effect of complete equilibrium axial force at the impeller back blade.
4, be provided with double mechanical seal at last, form four-layer seal, this layer sealing mainly plays lower shaft envelope in the remaining sealing in zone of high pressure, parking sealer and the grease chamber.Mechanical seal is installed in the sealing grease chamber that fills with lubricant oil and works, and lubricating condition is good.Behind pump work, along with the suitable rising of temperature, lubricant oil is swollen to rise simultaneously, makes oil pressure rising in the closed chamber, thereby plays the effect of precompressed.
In sum, this slag slurry pump under liquid is made up of stator blade and double mechanical seal on impeller back blade, sub-propeller, the interior pump cover with the multi-level sealing configuration in the multi-level seal arrangement.
This slag slurry pump under liquid mainly comprises following component with multi-level seal arrangement: double-row angular contact bal bearing, main shaft, bearing support, bearing machine sealed cover, ball bearing, double mechanical seal, pump cover, sub-propeller, interior pump cover, impeller, the pump housing, impeller packing ring and some connection fastening pieces.
This slag slurry pump under liquid is described as follows with the mounting connection structure of each component in the multi-level seal arrangement:
Double-row angular contact bal bearing is installed in the top in the bearing support, and main shaft is the transmission shaft in the body of work parts, and the upper end of main shaft is connected by elastic coupling flexible coupling with the transmission shaft of multi-range transmission; Outer ring, bearing support upper end is connected with the nozzle stub of multi-range transmission by link; The bearing gland of upper end is installed in the upper end of bearing support in the body of work parts by link; Bottom in the bearing support, ball bearing is installed, bearing machine sealed cover is installed in the bearing support of ball bearing outside by link, double mechanical seal is installed on the main shaft between bearing machine sealed cover and the pump cover, pump cover is connected with outer ring, bearing support bottom by the screw link, and pump cover is connected by screw with interior pump cover, the pump housing; Sub-propeller is between pump cover and interior pump cover, and impeller is positioned at the pump housing under the pump cover, and sub-propeller, impeller are installed in the main shaft lower end by key, and are locked at the main shaft lower end by one or more fasteners.
The multi-level seal arrangement of this slag slurry pump under liquid, its advantage is because multi-level sealing configuration has been adopted in axial seal, and has used the built-in type double mechanical seal to replace traditional single end face and packing seal, therefore, long service life can not have the operation of leakage.
Description of drawings:
Fig. 1: be the multi-level schematic diagram of sealing device of slag slurry pump under liquid.
Embodiment:
Referring to Fig. 1, among the figure: (1) is double-row angular contact bal bearing, and (2) are main shaft, (3) be bearing support, (4) are bearing machine sealed cover, and (5) are ball bearing, (6) be double mechanical seal, (7) are pump cover, and (8) are sub-propeller, (9) be interior pump cover, (10) are impeller, and (11) are the pump housing, (12) be the impeller packing ring, (13) be screw, (14) are stop pin, and (15) are key.
Double-row angular contact bal bearing (1) is installed in the top in the bearing support (3), main shaft (2) is the transmission shaft in the body of work parts, the upper end of main shaft (2) is connected by elastic coupling flexible coupling with the transmission shaft of multi-range transmission, and outer ring, bearing support (3) upper end is connected with the nozzle stub of multi-range transmission by bolt, packing ring, nut; The bearing gland of body of work parts middle and upper part is connected with bearing support (3) by screw, packing ring, bottom in the bearing support (3), ball bearing (5) is installed, and bearing machine sealed cover (4) is installed in the bottom of the outside bearing support (3) of ball bearing (5) by screw, packing ring; Double mechanical seal (6) is installed on the main shaft (2) between bearing machine sealed cover (4) and the pump cover (7), and pump cover (7) is connected with outer ring, bearing support (3) bottom by screw, and pump cover (7) is connected by screw with interior pump cover (9), the pump housing (11); Sub-propeller (8) is positioned between pump cover (7) and the pump cover (9), impeller (10) is positioned at the pump housing (11) under the pump cover (9), sub-propeller (8) and impeller (10) are installed in main shaft (2) lower end by key (15), and be locked at main shaft (2) lower end by impeller packing ring (12), screw (13) and stop pin (14), the forward and backward cover plate of impeller (10) is provided with back blade; Be provided with stator blade in interior pump cover (9) inboard.
Fluid is sucked by the import of the pump housing (11) bottom, under the centrifugal action of impeller (10), by the Horizontal Exit output of the pump housing (11), derives by liquid-discharging tube.
This slag slurry pump under liquid is selected different materials with the material of the sub-propeller (8) of multi-level seal arrangement, interior pump cover (9), impeller (10) and the pump housing (11) for use according to the corrosivity of medium, the abrasion of firmware particle, for example: Wear Resisting Steel such as stainless steel such as 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 316L or Cr15Mo3, MTCr26MoRe, 40CrSiN, to satisfy user's requirement.
Claims (4)
1, the multi-level seal arrangement of a kind of slag slurry pump under liquid, it comprises double-row angular contact bal bearing (1), main shaft (2), bearing support (3), bearing machine sealed cover (4), ball bearing (5), double mechanical seal (6), pump cover (7), sub-propeller (8), interior pump cover (9), impeller (10), the pump housing (11) and some connection fastening pieces, it is characterized in that double-row angular contact bal bearing (1) and ball bearing (5) are installed in the upper and lower in the bearing support (3) respectively; Bearing support (3) top and bottom are equipped with bearing gland and bearing machine sealed cover (4) by link respectively, and outer ring, bearing support (3) upper end and outer ring, bottom are connected the nozzle stub and the pump cover (7) of multi-range transmission respectively by link; Main shaft (2) upper end is connected by elastic coupling flexible coupling with the transmission shaft of multi-range transmission; Main shaft (2) lower end is equipped with sub-propeller (8) and impeller (10) by key (15), and is locked on main shaft (2) lower end surface by impeller packing ring (12), screw (13) and stop pin (14); Double mechanical seal (6) is installed on the main shaft (2) between bearing machine sealed cover (4) and the pump cover (7), and pump cover (7) is connected by screw with interior pump cover (9), the pump housing (11).
2, the multi-level seal arrangement of a kind of slag slurry pump under liquid according to claim 1 is characterized in that sub-propeller (8) is positioned between pump cover (7) and the pump cover (9).
3, the multi-level seal arrangement of a kind of slag slurry pump under liquid according to claim 1 is characterized in that impeller (10) is positioned at the pump housing (11) under the pump cover (9).
4, the multi-level seal arrangement of a kind of slag slurry pump under liquid according to claim 1 is characterized in that the forward and backward cover plate of impeller (10) is provided with back blade; And interior pump cover (9) inboard is provided with stator blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070088 CN2893246Y (en) | 2006-03-06 | 2006-03-06 | Multilayer sealing device for slag slurry pump under liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070088 CN2893246Y (en) | 2006-03-06 | 2006-03-06 | Multilayer sealing device for slag slurry pump under liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893246Y true CN2893246Y (en) | 2007-04-25 |
Family
ID=38061408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620070088 Expired - Fee Related CN2893246Y (en) | 2006-03-06 | 2006-03-06 | Multilayer sealing device for slag slurry pump under liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893246Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192158A (en) * | 2011-06-15 | 2011-09-21 | 浙江大学 | Vertical no-sealed self-sucking pump |
| CN103671225A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Submerged pump sealing structure |
| CN106523377A (en) * | 2016-12-13 | 2017-03-22 | 广州市白云泵业集团有限公司 | Impeller and auxiliary impeller leaning-mounted no-sealed and self-suction pump |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
-
2006
- 2006-03-06 CN CN 200620070088 patent/CN2893246Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192158A (en) * | 2011-06-15 | 2011-09-21 | 浙江大学 | Vertical no-sealed self-sucking pump |
| CN103671225A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Submerged pump sealing structure |
| CN106523377A (en) * | 2016-12-13 | 2017-03-22 | 广州市白云泵业集团有限公司 | Impeller and auxiliary impeller leaning-mounted no-sealed and self-suction pump |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070425 Termination date: 20110306 |