CN204140367U - The mechanical seal of hydroecium slurry pump is rinsed in external spring - Google Patents
The mechanical seal of hydroecium slurry pump is rinsed in external spring Download PDFInfo
- Publication number
- CN204140367U CN204140367U CN201420439011.5U CN201420439011U CN204140367U CN 204140367 U CN204140367 U CN 204140367U CN 201420439011 U CN201420439011 U CN 201420439011U CN 204140367 U CN204140367 U CN 204140367U
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- hydroecium
- pump
- slurry pump
- seal
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to flushing hydroecium slurry pump mechanical seal in a kind of external spring, is made up of slurry pump pump shaft, mechanical seal housing, protection hydroecium, water seal arrangement, dynamic and static ring friction pair, industrial washing water interface, slurries, pump housing backplate, locking device, rubber seal, rotating ring support, fixing bolt.Mechanical seal housing installs additional protection hydroecium; the dynamic and static ring friction pair inside line of mechanical seal forms a zone of protection; rotating ring support is fixed on slurry pump pump shaft by locking device; sealed by rubber seal with slurry pump shaft seal face, rotating ring support is along with the rotation of slurry pump pump shaft.By changing the operating mode of mechanical seal dynamic and static ring friction pair, avoiding sealed member and slurry liquid contacts, extending the working life of dynamic and static ring and each sealing rubber ring, the working life of final prolonged mechanical sealing.The utility model can be applied to the sealing position of the slurry pump of power plant desulphurization system or the pump apparatus of similar operating mode.
Description
Technical field
The utility model relates to a kind of power station desulfuration recycle pump, rinses the mechanical seal of hydroecium slurry pump specifically in a kind of external spring.
Background technique
At present, the mechanical seal of power station desulphurization system slurry pump, the built-in spring of main employing rinses outward in single mechanical end face seal, built-in spring double-end-face mechanical seal, external spring and rinses single mechanical end face seal three kinds of forms.The mechanical seal that these three kinds of structural types are observed in practical application all can not effectively make dynamic and static ring friction pair and slurries isolate, sound friction pair serious wear, particularly equipment stoppage in transit rear slurry can be deposited in the gap of friction pair interior edge face, starting device dynamic and static ring generation bite, deflection again, even damaged.The counterbalance spring of the mechanical seal of built-in spring is also easily subject to sealing in the erosion of slurries and loses mechanical property gradually, and spring is not normal cannot be replied in time and compensate.These all cause mechanical seal to be lost efficacy, and slurry pump machine envelope is revealed serious, affect equipment and unit safety startup.
Summary of the invention
The purpose of this utility model is to provide in a kind of external spring rinses the mechanical seal of hydroecium slurry pump, overcome the defect that prior art exists, by changing the operating mode of mechanical seal dynamic and static ring friction pair, avoid sealed member and slurry liquid contacts, extend the working life of dynamic and static ring and each sealing rubber ring, the working life of final prolonged mechanical sealing.
The purpose of this utility model is achieved in that in a kind of external spring rinses the mechanical seal of hydroecium slurry pump, is made up of slurry pump pump shaft, mechanical seal housing, protection hydroecium, water seal arrangement, dynamic and static ring friction pair, industrial washing water interface, slurries, pump housing backplate, locking device, rubber seal, rotating ring support, fixing bolt.Mechanical seal housing installs additional protection hydroecium; the dynamic and static ring friction pair inside line of mechanical seal forms a zone of protection; rotating ring support is fixed on slurry pump pump shaft by locking device; sealed by rubber seal with slurry pump shaft seal face, rotating ring support is along with the rotation of slurry pump pump shaft.Mechanical seal housing is fixed on pump housing backplate by fixing bolt.Mechanical seal housing and pump housing backplate and dynamic and static ring friction pair sealing surface are sealed by rubber seal.Protection hydroecium is embedded on the interior edge face of mechanical seal housing, and be embedded in ring-like water seal arrangement at protection hydroecium, water seal arrangement and rotating ring support are formed radially motive sealing.Protection hydroecium is bowl-type of revealing the exact details, and adopts alloyed steel to make.
This slurry pump mechanical seal is made up of slurry pump pump shaft, mechanical seal housing, protection hydroecium, water seal arrangement, dynamic and static ring friction pair, industrial washing water interface, slurries, pump housing backplate, locking device, rubber seal, rotating ring support, fixing bolt.Be fixed on slurry pump pump shaft by rotating ring support by locking device, sealed with slurry pump shaft seal face by rubber seal, rotating ring support rotates together along with slurry pump pump shaft.Mechanical seal housing is fixed on pump housing backplate by fixing bolt, is sealed by rubber seal with pump housing backplate and dynamic and static ring friction pair sealing surface.Protection hydroecium is embedded on the interior edge face of mechanical seal housing, and be embedded in ring-like water seal arrangement at protection hydroecium, water seal arrangement and rotating ring support are formed radially motive sealing.
Working principle of the present utility model is; Rinse in external spring after mechanical seal casinghousing installs protection hydroecium additional, make the dynamic and static ring friction pair inside line of mechanical seal form a zone of protection.The pressure of the industry water provided due to industrial colling interface is generally at about 0.4Mpa; higher than the operating pressure of pump inside slurries; industry cooling sparge water enters in protection hydroecium from the industrial colling interface of mechanical seal; the hydraulic pressure in protection hydroecium is ensured by water seal arrangement; make slurries that the working environment at the dynamic and static ring friction pair in mechanical seal and slurry liquid contacts position is worn and torn from burn into become industry and cool sparge water, thus improve mechanical seal working life.
The beneficial effects of the utility model are: the utility model through testing on power station multiple stage desulphurization circulating slurry pump, solve desulphurization circulating pumping unit to stop restarting rear mechanical seal and revealing this difficult problem, desulphurization circulating pump mechanical sealing working life was by original 3 to 6 months, bring up to current more than 2 years, alleviate maintenance workload, reduce maintenance cost, ensure that the long period safe and stable operation of slurry circulating pump and unit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 be slurry pump pump shaft, 2 be mechanical seal housing in figure, 3 for protection hydroecium, 4 be water seal arrangement, 5 be dynamic and static ring friction pair, 6 be industrial washing water interface, 7 be slurries, 8 be pump housing backplate, 9 be locking device, 10 be rubber seal, 11 be rotating ring support, 12 for fixing bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described: in a kind of external spring, rinse the mechanical seal of hydroecium slurry pump, is made up of slurry pump pump shaft (1), mechanical seal housing (2), protection hydroecium (3), water seal arrangement (4), dynamic and static ring friction pair (5), industrial washing water interface (6), slurries (7), pump housing backplate (8), locking device (9), rubber seal (10), rotating ring support (11), fixing bolt (12).Mechanical seal housing (2) installs additional protection hydroecium (3); dynamic and static ring friction pair (5) inside line of mechanical seal forms a zone of protection; rotating ring support (11) is fixed on slurry pump pump shaft (1) by locking device (9); sealed by rubber seal (10) with slurry pump pump shaft (1) sealing surface, rotating ring support (11) is along with slurry pump pump shaft (1) rotation.Mechanical seal housing (2) is fixed on pump housing backplate (8) by fixing bolt (12).Mechanical seal housing (2) is sealed by rubber seal (10) with pump housing backplate (8) and dynamic and static ring friction pair (5) sealing surface.Protection hydroecium (3) is embedded on the interior edge face of mechanical seal housing (2); be embedded in ring-like water seal arrangement (4) in protection hydroecium (3), water seal arrangement (4) and rotating ring support (11) are formed radially motive sealing.Protection hydroecium (3) is bowl-type of revealing the exact details, and adopts corrosion resistant, wear-resisting two-phase alloys steel to do.
The utility model makes dynamic and static ring friction pair (5) inside line of mechanical seal form a zone of protection after rinsing in external spring and mechanical seal casinghousing (2) installing protection hydroecium (3) additional.The pressure of the industry water provided due to industrial colling interface (6) is generally at about 0.4Mpa, higher than the operating pressure of pump inside slurries (7), industry cooling sparge water enters in protection hydroecium (3) from the industrial colling interface (6) of mechanical seal, the hydraulic pressure in protection hydroecium (3) is ensured by water seal arrangement (4), make the working environment of dynamic and static ring friction pair (5) in mechanical seal and slurries (7) contact position by corroding, the slurries (7) of wearing and tearing become industry cooling sparge water, thus improve mechanical seal working life.
The utility model, by changing the operating mode of mechanical seal dynamic and static ring friction pair, avoids sealed member and slurry liquid contacts, extends the working life of dynamic and static ring and each sealing rubber ring, the working life of final prolonged mechanical sealing.
The utility model can be applied to the sealing position of the slurry pump of power plant desulphurization system or the pump apparatus of similar operating mode.
Claims (5)
1. rinse the mechanical seal of hydroecium slurry pump in an external spring, by slurry pump pump shaft (1), mechanical seal housing (2), protection hydroecium (3), water seal arrangement (4), dynamic and static ring friction pair (5), industry washing water interface (6), slurries (7), pump housing backplate (8), locking device (9), rubber seal (10), rotating ring support (11), fixing bolt (12) formed, it is characterized in that on mechanical seal housing (2), install protection hydroecium (3) additional, dynamic and static ring friction pair (5) inside line of mechanical seal forms a zone of protection, rotating ring support (11) is fixed on slurry pump pump shaft (1) by locking device (9), sealed by rubber seal (10) with slurry pump pump shaft (1) sealing surface, rotating ring support (11) is along with slurry pump pump shaft (1) rotation.
2. rinse the mechanical seal of hydroecium slurry pump in a kind of external spring according to claim 1, it is characterized in that mechanical seal housing (2) is fixed on pump housing backplate (8) by fixing bolt (12).
3. rinse the mechanical seal of hydroecium slurry pump in a kind of external spring according to claim 1, it is characterized in that mechanical seal housing (2) is sealed by rubber seal (10) with pump housing backplate (8) and dynamic and static ring friction pair (5) sealing surface.
4. rinse the mechanical seal of hydroecium slurry pump in a kind of external spring according to claim 1; it is characterized in that protection hydroecium (3) is embedded on the interior edge face of mechanical seal housing (2); be embedded in ring-like water seal arrangement (4) in protection hydroecium (3), water seal arrangement (4) and rotating ring support (11) are formed radially motive sealing.
5. rinse the mechanical seal of hydroecium slurry pump in a kind of external spring according to claim 1, it is characterized in that protection hydroecium (3) is bowl-type of revealing the exact details, adopt alloyed steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439011.5U CN204140367U (en) | 2014-08-06 | 2014-08-06 | The mechanical seal of hydroecium slurry pump is rinsed in external spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439011.5U CN204140367U (en) | 2014-08-06 | 2014-08-06 | The mechanical seal of hydroecium slurry pump is rinsed in external spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140367U true CN204140367U (en) | 2015-02-04 |
Family
ID=52417057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420439011.5U Expired - Fee Related CN204140367U (en) | 2014-08-06 | 2014-08-06 | The mechanical seal of hydroecium slurry pump is rinsed in external spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3337982A4 (en) * | 2016-01-07 | 2019-04-24 | Stein Seal Company | Slurry seal assembly |
-
2014
- 2014-08-06 CN CN201420439011.5U patent/CN204140367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3337982A4 (en) * | 2016-01-07 | 2019-04-24 | Stein Seal Company | Slurry seal assembly |
| US10677247B2 (en) | 2016-01-07 | 2020-06-09 | Stein Seal Company | Slurry seal assembly |
| US10941780B2 (en) | 2016-01-07 | 2021-03-09 | Stein Seal Company | Slurry seal assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102269179B (en) | Dry friction-resisting sealing device for pump body | |
| CN204186631U (en) | A kind of chemical flow-process pump | |
| CN204140367U (en) | The mechanical seal of hydroecium slurry pump is rinsed in external spring | |
| CN202545334U (en) | Sand prevention sealing device for electric diving pump | |
| CN102868248B (en) | The leakage preventing structure of pump motor bearing | |
| CN201818538U (en) | Hydraulic slide-valve type stop sealing mechanism for dynamic sealing of auxiliary impeller in centrifugal pump | |
| CN203476783U (en) | Mechanical seal for impurity pump | |
| CN103016419A (en) | Flushing structure for preventing sealing ring from being worn | |
| CN104314828A (en) | Chemical process pump | |
| CN202251057U (en) | Novel stuffing sealing device | |
| CN203856760U (en) | Single end surface mechanical sealing structure | |
| CN204591766U (en) | A kind of chemical pump bearing seal system | |
| CN203856752U (en) | Water retaining disk structure for pump | |
| CN204152858U (en) | The quickly dismantled circulating water pump of a kind of waste incineration and generating electricity system | |
| CN202597202U (en) | Sealing device of horizontal axial flow pump | |
| CN203463342U (en) | Dredge pump provided with triangular key stop structure for thrust bearing | |
| CN203686140U (en) | Mechanical sealing device for water inlet of motor rotor | |
| CN210950310U (en) | Rotary hydraulic joint with excellent sealing performance and long service life | |
| CN102806606A (en) | Novel sealing mechanism for mixer shaft | |
| CN201865964U (en) | Rotating shaft seal structure of slurry pump | |
| CN202326169U (en) | Anti-rotation device of cylinder piston rod of diaphragm pump | |
| CN202273907U (en) | Mechanical sealing device for pump | |
| CN202812596U (en) | Hydraulic rotary joint | |
| CN202108636U (en) | Sealing device of hydraulic turbine spindle | |
| CN202597203U (en) | Vertical axial flow pump sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |