CN108953215A - Pump multi-level gland seal device - Google Patents
Pump multi-level gland seal device Download PDFInfo
- Publication number
- CN108953215A CN108953215A CN201811059201.3A CN201811059201A CN108953215A CN 108953215 A CN108953215 A CN 108953215A CN 201811059201 A CN201811059201 A CN 201811059201A CN 108953215 A CN108953215 A CN 108953215A
- Authority
- CN
- China
- Prior art keywords
- grease chamber
- main shaft
- impeller
- pump
- bearing block
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of multi-level gland seal devices of pump, include a pump housing and a pump cover, an impeller is equipped in the pump housing, the pump housing is equipped with a grease chamber bearing block and a connecting tube, a sealing grease chamber is equipped in the grease chamber bearing block, a main shaft is equipped in the connecting tube, a second sealing ring is equipped between the pump cover and grease chamber bearing block, a first sealing ring is equipped between the grease chamber bearing block and connecting tube, it is equipped with a machine in the grease chamber bearing block and seals bearing gland, the impeller is connect by helixseal set with the collar bush in succession, the pump cover is equipped with a first mechanical seal and the first mechanical seal is socketed on the main shaft, the machine envelope bearing gland is equipped with a second mechanical seal and the second mechanical seal is socketed on the main shaft.It is depressured, is depressured for the first time by back blade for second of helixseal set, mitigated the load of first mechanical seal pressure-bearing, extend service life.
Description
Technical field
The present invention relates to a kind of pumps, more precisely, being a kind of multi-level gland seal device of pump.
Background technique
Submerged pump contains granule foreign commonly used in the occasion of conveying sewage, corrosive liquids or clear water, especially conveying liquid
When, the key request for testing this pump is sealing technique, not only requires reliability of operation steady in a long-term, and requirement to prevent corruption
The liquid leakages such as corrosion, harmfulness pollute environment；Traditional sealing, not only seal form is simple, and a kind of sealing is usually used only
Form, i.e. packing seal or mechanical seal, effect is poor, the service life is short, needs to be regularly maintained；Even if using mechanical seal, but
Sealing structure simple operation environment is extensive, is not provided with the measure of fluid partitioning particle, washes away machine envelope and serious wear, sealing
Performance and service life reduction；Simultaneously because submerged pump key job position is in liquid, it can not observe and judge when breaking down,
And it is not provided with failure warning measure, it is easy to miss best maintenance opportunity, causes the failure that equipment is bigger, or even directly report
It is useless；These existing defects constrain submerged pump reliability of operation, increase equipment operation, maintenance cost.
Summary of the invention
The present invention mainly solves technical problem present in the prior art, to provide a kind of pump multi-level axle envelope dress
It sets.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
The invention discloses a kind of multi-level gland seal devices of pump, include a pump housing and a pump cover, set in the pump housing
There is an impeller, which is characterized in that the pump housing is equipped with a grease chamber bearing block and a connecting tube, in the grease chamber bearing block
Equipped with a sealing grease chamber, be equipped with a main shaft in the connecting tube, impeller described in the main shaft drives, the pump cover with
It is equipped with a second sealing ring between grease chamber bearing block, a first sealing ring is equipped between the grease chamber bearing block and connecting tube, it is described
Grease chamber bearing block in be equipped with a machine and seal bearing gland, helixseal set and the helixseal are inlayed on the impeller
Set connects in succession with the collar bush, and the impeller is equipped with back blade, the pump cover equipped with a first mechanical seal and
The first mechanical seal is socketed on the main shaft, and the machine envelope bearing gland is equipped with a second mechanical seal and described
Second mechanical seal be socketed on the main shaft.
As preferred embodiments of the present invention, by a machine seal washer and once, Spring Card is drawn a circle to approve for the second mechanical seal
Position, the main shaft are equipped with a bearing, and the inner ring of the bearing is sleeved on main shaft and is positioned by a upper spring retainer ring, institute
The outer ring for the bearing stated is in the grease chamber bearing block and by the machine envelope bearing gland positioning.
As preferred embodiments of the present invention, the helixseal set passes through a screw, a spring washer and an impeller
Washer couples with the principal shaft locking, and the lower section of the impeller is equipped with an impeller washer, is arranged on the impeller washer
Anti-rotation is sold, the main shaft transmits torque to the impeller by a key.
As preferred embodiments of the present invention, the top of the grease chamber bearing block is equipped with a guard ring, the sealing
An oil water probe is equipped in grease chamber, the signal wire of the oil water probe is drawn by the connecting tube.
Pump of the invention has the advantage that relay-type is depressured measure with multi-level gland seal device, mitigates mechanical seal and holds
Pressure load；Relay-type blocks quarantine measures, is effectively isolated solid particle and washes away and wear mechanical seal；The sealing of floating layer oil pressure is arranged
It applies, extends sealing device and use the time；Bearing defends barrier measure, protects bearing not by the etch of leakage liquid always；Failure
Detection means monitor sealing leak at any time, issue failure warning in time, remind maintenance and replacement vulnerable part, ensure longtime running
Reliability；Excellent lubricant method is stored in the indoor machinery oil of Seal Oil, can oil pressure sealing and lubrication, cooling machinery
Sealing；Dust prevention is set, there is dust-proof, antifouling, anti-impurity, improves double-row bearing running environment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is Multi-layer sealing apparatus structure schematic diagram of the invention；
Fig. 2 is blade wheel structure main sectional view of the invention；
Fig. 3 is blade wheel structure left view of the invention；
Fig. 4 is helixseal nested structure main sectional view of the invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figures 1 to 4, the multi-level gland seal device of the pump includes a pump housing 1 and a pump cover 3, is equipped in the pump housing 1
One impeller 2, the pump housing 1 are equipped with a grease chamber bearing block 4 and a connecting tube 5, and a sealing grease chamber is equipped in the grease chamber bearing block 4
25, the connecting tube 5 is interior to be equipped with a main shaft 8, which drives the impeller 2, and a second is equipped between the pump cover 3 and grease chamber bearing block 4
Sealing ring 14 is equipped with a first sealing ring 15, is equipped with a machine in the grease chamber bearing block 4 and seals between the grease chamber bearing block 4 and connecting tube 5
Bearing gland 6, helixseal set 7 is inlayed on the impeller 2 and helixseal set 7 is connected with the socket of main shaft 8.On the impeller 2
Equipped with back blade 16, which is equipped with a first mechanical seal 9 and the first mechanical seal 9 is socketed on the main shaft 8, the main shaft 8
It is equipped with a bearing 11, the inner ring of the bearing 11 is sleeved on main shaft 8 and is positioned by a upper spring retainer ring 23, outside the bearing 11
Circle positions in the grease chamber bearing block 4 and by machine envelope bearing gland 6, and it is close that machine envelope bearing gland 6 is equipped with a second machinery
It seals 10 and the second mechanical seal 10 is socketed on the main shaft 8.The second mechanical seal 10 passes through a machine seal washer 21 and once spring
Retainer ring 22 positions.
Helixseal set 7 is joined by a screw 17, a spring washer 18 and an impeller washer 13 with the main shaft 8 locking
It connects, the lower section of the impeller 2 is equipped with an impeller washer 13, and 19 anti-rotation of pin is arranged on the impeller washer 13, which passes through a key 20
Torque is transmitted to the impeller 2.
The top of the grease chamber bearing block 4 is equipped with a guard ring 12, carries out dust-proof, antifouling, anti-impurity to bearing 11 and enters guarantor
Shield.An oil water probe 24 is equipped in the sealing grease chamber 25, the signal wire 26 of the oil water probe 24 is drawn by the connecting tube 5.
Pump of the invention is illustrated with the function of multi-level gland seal device below: firstly, being located at the impeller in the pump housing 1
The 2 included rotations of back blade 16 form first decompression sealing；Secondly, the helixseal set 7 being embedded on impeller 2 is formed when rotating
Second of decompression sealing；Third, the first mechanical seal 9 being located on pump cover 3 form third level sealing；4th, the pump cover 3
Couple the sealing grease chamber 25 formed with grease chamber bearing block 4, forms the sealing of the 4th level oil pressure under the buoyancy of oil；5th,
The second mechanical seal 10 being located on machine envelope bearing gland 6 is last one of sealing barrier, if it is more front sealing at all levels occur
The case where to fail, the second mechanical seal 10 still can be sealed protection to double-row bearing 11.
In addition, oil water probe 24 protrudes into sealing grease chamber 25, sealing leak situation can be monitored, is reached when detecting leakage
It when failure warning generates signal, is exported and is alarmed by signal wire 26, guarantee maintenance in time and replacement vulnerable part.In particular, by impeller 2
The included rotation of back blade 16 forms decompression for the first time and 7 rotation of helixseal set forms second and is depressured, and on the one hand mitigates
9 pressure-bearing load of first mechanical seal, on the other hand effectively can stop particle to enter, first mechanical seal 9 is washed away and worn, is mentioned
High sealing reliability and service life；In addition, since the machinery oil in sealing grease chamber 25 can be mechanical to first mechanical seal 9, second
Sealing 10 forms good lubrication, cooling effect, improves machine envelope running environment, prolongs the service life.
Pump of the invention has the following technical effect that 1, relay-type is depressured measure with multi-level gland seal device, passes through impeller
Back blade is depressured for the first time, is depressured for second of helixseal set, is mitigated the load of first mechanical seal pressure-bearing, is prolonged the service life；2, it connects
Power formula blocks quarantine measures, stops second particle, helixseal set of barrier particle for the first time by back blade, is formed effective
Isolation solid particle enter directly contacted with mechanical seal, avoid mechanical seal bear particle wash away and wear, improve machine
It seals running environment and extends the service life；3, floating layer oil pressure seal approach, if it is mechanical back blade, helixseal set and first occur
Three level seal approach such as sealing weaken or failure, have leakage fluid to enter in Seal Oil room, at this time due to the work of oil reservoir buoyancy
With the 4th level oil reservoir back-pressure sealing of formation；4, bearing defends barrier measure, if four seal approach that front is constituted are gradually
Weaken until failure, still has second mechanical seal as last barrier, protect to double-row bearing, not by leakage liquid at this time
Etch；5, fault detection component is set, by protruding into the indoor oil water probe of Seal Oil, monitors sealing leak situation at any time, when
Leakage reaches a certain level, and detecting head generates failure warning signal, is issued and is alarmed by signal wire, reminds maintenance and replacement in time
Vulnerable part has ensured long-term running reliability；6, excellent lubricant method, the indoor machinery oil of Seal Oil, in addition to having oil
It outside the effect of layer back-pressure sealing, while playing and good lubrication, cooling effect is formed to mechanical seal, improve machine envelope operation
Environment extends the service life of machine envelope；7, the dust prevention being arranged, the guard ring of double-row bearing top setting, has dust-proof, anti-
Dirty, anti-impurity enters effect, improves double-row bearing running environment.
Not limited to this, any change or replacement expected without creative work should all be covered in guarantor of the invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of multi-level gland seal device of pump includes a pump housing (1) and a pump cover (3), is equipped with a leaf in the pump housing (1)
It takes turns (2), which is characterized in that the pump housing (1) is equipped with a grease chamber bearing block (4) and a connecting tube (5), the grease chamber axis
It holds and is equipped with sealing grease chamber (25) in seat (4), be equipped with a main shaft (8) in the connecting tube (5), the main shaft (8) driving
The impeller (2) is equipped with a second sealing ring (14), the grease chamber axis between the pump cover (3) and grease chamber bearing block (4)
It holds and is equipped with a first sealing ring (15) between seat (4) and connecting tube (5), be equipped with a machine in the grease chamber bearing block (4) and seal bearing
Gland (6) inlays a helixseal set (7) on the impeller (2) and the helixseal set (7) and the main shaft
(8) socket connection, the impeller (2) are equipped with back blade (16), and the pump cover (3) is equipped with a first mechanical seal (9)
And the first mechanical seal (9) is socketed on the main shaft (8), machine envelope bearing gland (6) is equipped with a second machine
Tool seals (10) and the second mechanical seal (10) is socketed on the main shaft (8).
2. the multi-level gland seal device of pump according to claim 1, which is characterized in that the second mechanical seal (10) is logical
It crosses a machine seal washer (21) and once spring collar (22) positions, the main shaft (8) is equipped with a bearing (11), the axis
The inner ring for holding (11) is sleeved on main shaft (8) and is positioned by a upper spring retainer ring (23), and the outer ring of the bearing (11) is mounted in
In the grease chamber bearing block (4) and by machine envelope bearing gland (6) positioning.
3. the multi-level gland seal device of pump according to claim 2, which is characterized in that the helixseal set (7) is logical
It crosses a screw (17), a spring washer (18) and an impeller washer (13) to couple with main shaft (8) locking, the impeller
(2) lower section is equipped with an impeller washer (13), setting pin (19) anti-rotation, the main shaft (8) on the impeller washer (13)
Torque is transmitted to the impeller (2) by a key (20).
4. the multi-level gland seal device of pump according to claim 3, which is characterized in that the grease chamber bearing block (4)
Top is equipped with a guard ring (12), is equipped with an oil water probe (24) in the sealing grease chamber (25), the oil water probe
(24) signal wire (26) is drawn by the connecting tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059201.3A CN108953215A (en) | 2018-09-12 | 2018-09-12 | Pump multi-level gland seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059201.3A CN108953215A (en) | 2018-09-12 | 2018-09-12 | Pump multi-level gland seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953215A true CN108953215A (en) | 2018-12-07 |
Family
ID=64476748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811059201.3A Pending CN108953215A (en) | 2018-09-12 | 2018-09-12 | Pump multi-level gland seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812447A (en) * | 2018-12-20 | 2019-05-28 | 杭州西子泵业有限公司 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2614284Y (en) * | 2003-01-09 | 2004-05-05 | 上海连成（集团）有限公司 | Under liquid type pollution discharge pump lower bearing arrangement |
| CN101000057A (en) * | 2006-12-27 | 2007-07-18 | 济南奔腾泵业制造有限公司 | Integrated automatic submersible draining pump |
| CN201155482Y (en) * | 2008-01-23 | 2008-11-26 | 河南郑泵科技有限公司 | Centrifugal pump seal device |
| CN105545761A (en) * | 2016-01-26 | 2016-05-04 | 江苏长凯机械设备有限公司 | Mechanical seal automatic oil supplying cooling lubricating device of long-shaft underwater pump |
| CN208651255U (en) * | 2018-09-12 | 2019-03-26 | 泰州泰东泵业有限公司 | Pump multi-level gland seal device |
-
2018
- 2018-09-12 CN CN201811059201.3A patent/CN108953215A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2614284Y (en) * | 2003-01-09 | 2004-05-05 | 上海连成（集团）有限公司 | Under liquid type pollution discharge pump lower bearing arrangement |
| CN101000057A (en) * | 2006-12-27 | 2007-07-18 | 济南奔腾泵业制造有限公司 | Integrated automatic submersible draining pump |
| CN201155482Y (en) * | 2008-01-23 | 2008-11-26 | 河南郑泵科技有限公司 | Centrifugal pump seal device |
| CN105545761A (en) * | 2016-01-26 | 2016-05-04 | 江苏长凯机械设备有限公司 | Mechanical seal automatic oil supplying cooling lubricating device of long-shaft underwater pump |
| CN208651255U (en) * | 2018-09-12 | 2019-03-26 | 泰州泰东泵业有限公司 | Pump multi-level gland seal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812447A (en) * | 2018-12-20 | 2019-05-28 | 杭州西子泵业有限公司 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose structure |
| CN109812447B (en) * | 2018-12-20 | 2020-07-03 | 杭州西子泵业有限公司 | Corrosion-free pump shaft and impeller anti-loosening structure of sewage submersible pump |
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