CN114320993A - Mechanical seal protection structure of water pump - Google Patents
Mechanical seal protection structure of water pump Download PDFInfo
- Publication number
- CN114320993A CN114320993A CN202210013099.3A CN202210013099A CN114320993A CN 114320993 A CN114320993 A CN 114320993A CN 202210013099 A CN202210013099 A CN 202210013099A CN 114320993 A CN114320993 A CN 114320993A
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- mechanical seal
- water pump
- sealing
- protection structure
- shaft sleeve
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Abstract
The invention discloses a mechanical seal protection structure of a water pump, which comprises a shaft sleeve, wherein the shaft sleeve is arranged between the mechanical seal and an impeller of the water pump; wherein, a sealing structure is arranged on the shaft sleeve; the sealing structures are positioned on the inner surface and the outer surface of the shaft sleeve; the sealing structure comprises grooves arranged on the inner surface and the outer surface and sealing packing matched with the grooves. A method of arranging a shaft sleeve between a mechanical seal and an impeller; the mechanical seal protection device has the advantages of good mechanical seal protection effect, prolonged service life, simple structure and low use cost.
Description
Technical Field
The invention relates to the field of water pump manufacturing and application, in particular to a mechanical seal protection structure of a water pump.
Background
The mechanical seal, one of the main sealing forms of pump equipment, is an important part thereof, and determines the safety, reliability and durability of the pump equipment. The mechanical seal is a vulnerable part, and the failure of the mechanical seal accounts for over half of the daily maintenance workload of the equipment according to statistics.
When the medium contains silt, a large amount of silt enters the oil chamber at a high speed when the water pump operates for a long time, so that the mechanical seal fails. In the prior art, a protection structure of an organic seal is arranged, but when more silt exists in a medium, the silt is not well protected.
For example, a protection structure for a mechanical seal of a deep well halogen pump is disclosed in the Chinese patent literature, and the publication number is CN 201547009U. In the patent, the protection structure of the mechanical seal of the deep well brine extraction pump is characterized in that a mechanical seal seat is connected with the end part of a submersible motor, the mechanical seal is assembled at a shaft extending part close to a motor end cover, a static part of the mechanical seal is arranged in the mechanical seal seat, a rotating part is fixed on a shaft to form a sealing structure of the submersible motor, a volute is connected with the mechanical seal seat, an impeller is fixed at the shaft end and extends into a volute cavity, and a small gap is formed between the impeller and the mechanical seal seat in the radial direction to form a mechanical seal cavity of high-pressure fresh water. The mechanical seal cavity water conduit is welded on the mechanical seal seat. In this patent, when containing silt in the medium, silt can lead to the fact the destruction to the machine seal, leads to the machine to seal inefficacy, influences the efficiency of construction, increases use cost.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for arranging a shaft sleeve between a machine seal and an impeller; the mechanical seal protection device has the advantages of good mechanical seal protection effect, prolonged service life, simple structure and low use cost.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a mechanical seal protection structure of a water pump comprises a shaft sleeve, wherein the shaft sleeve is arranged between the mechanical seal and an impeller of the water pump; wherein, a sealing structure is arranged on the shaft sleeve; the sealing structures are positioned on the inner surface and the outer surface of the shaft sleeve; the sealing structure comprises grooves arranged on the inner surface and the outer surface and sealing packing matched with the grooves. The shaft sleeve is arranged between the mechanical seal and the impeller, the sealing structure is positioned on the inner surface and the outer surface of the shaft sleeve, and the inner side and the outer side of the shaft sleeve are simultaneously protected, so that the mechanical seal can be effectively protected; the sealing structure comprises a groove and a sealing filler matched with the groove; prevent silt through above-mentioned sealing filler, simple structure, convenient to use.
Further, a collecting groove is formed in the bottom of the groove. After silt is blocked by above-mentioned sealing filler, be in quiescent condition basically, through the setting of above-mentioned collecting vat, can effectively block silt, and the silt of collecting further extrudees sealing filler, has strengthened the leakproofness, has improved life, and the protection effect is showing.
Further, the grooves are arranged in a spiral shape or in uniformly arranged circular rings. When the grooves are spirally arranged, the assembly is simple, and silt can be effectively blocked; when the rings which are uniformly arranged are arranged, the sand can be buffered between every two rings, and the effect of protecting the mechanical seal is remarkable.
Furthermore, the cross section of the groove is rectangular or circular arc. The rectangular arrangement is convenient to install, and the sealing effect is obvious; when being arc setting, above-mentioned sealing filler can slightly roll when using, has made things convenient for the collection of silt, and then has protected the machine to seal.
Further, the sealing packing is a packing. Low use cost and remarkable effect.
Compared with the prior art, the invention has the advantages that: the mechanical seal has the advantages of good protection effect, prolonged service life, simple structure and low use cost.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a cross-sectional view of one embodiment of the bushing of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a cross-sectional view of one embodiment of the bushing of the present invention.
Fig. 5 is an enlarged view at B in fig. 4.
Fig. 6 is a cross-sectional view of one embodiment of the bushing of the present invention.
Fig. 7 is an enlarged view at C in fig. 6.
Fig. 8 is a cross-sectional view of one embodiment of the bushing of the present invention.
Fig. 9 is an enlarged view at D in fig. 8.
In the figure:
1. a shaft sleeve; 2. machine sealing; 3. a water pump; 4. an impeller; 5. a groove; 6. sealing and filling; 7. and (4) collecting the tank.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following embodiments, the used sealing packing 6 is a packing, and in other embodiments, the sealing packing may be arranged in other forms, which is not limited to this and will not be described herein again.
Referring to fig. 1, 2 and 3, an embodiment of a mechanical seal protection structure of a water pump according to the present invention is shown, in this embodiment, the protection structure includes a shaft sleeve 1, and the shaft sleeve 1 is disposed between the mechanical seal 2 and an impeller 4, so as to effectively prevent substances such as silt in a medium from entering an oil film surface of the mechanical seal 2, and ensure use of the mechanical seal 2; the sealing structures are arranged on the inner surface and the outer surface of the shaft sleeve 1, the sealing structures can effectively block silt, the structure is simple, the use is convenient, and the sealing structures comprise grooves 5 and sealing fillers 6 matched with the grooves 5; in this embodiment, the cross section of the groove 5 is rectangular, the groove 5 is spirally arranged, the rectangular arrangement can facilitate installation, the position of the sealing filler 6 is stable, sealing can be effectively performed, the structure is simple, and the use is convenient; meanwhile, in the present embodiment, the bottom of the groove 5 is provided with a collecting groove 7, the collecting groove 7 in the present embodiment is arc-shaped, and in other embodiments, the collecting groove may also be rectangular, which is not limited to this, and is not described herein again; after silt is blocked by above-mentioned sealing filler 6, be in quiescent condition basically, through the setting of above-mentioned collecting vat 7, can effectively block silt, and the silt of collecting further extrudees sealing filler 6, has strengthened the leakproofness, has improved life, and the protection effect is showing.
Referring to fig. 1, 4 and 5, embodiments of a mechanical seal protection structure of a water pump according to the present invention are shown, and in this embodiment, a basic portion is consistent with the above embodiments, and is not described herein again. In this embodiment, the cross section of the groove 5 is arc-shaped, the groove 5 is spirally arranged, the arc-shaped arrangement enables the sealing filler 6 to slightly roll or creep when in use, so that silt can be conveniently collected, and the collecting tank 7 arranged at the bottom is consistent with the embodiment and is not repeated herein.
Referring to fig. 1, fig. 6 and fig. 7, an embodiment of a mechanical seal protection structure of a water pump according to the present invention is shown, in this embodiment, a basic portion is consistent with the above embodiment, and details are not repeated here. In this embodiment, the cross-section of above-mentioned recess 5 is the rectangle setting, and above-mentioned recess 5 is the ring of align to grid and arranges, when the ring that is align to grid arranges, can both have the cushioning effect to silt between every ring, and the protection machine seals 2 effects and is showing, and here is no longer repeated.
Referring to fig. 1, 8 and 9, embodiments of a mechanical seal protection structure of a water pump according to the present invention are shown, and in this embodiment, a basic portion is consistent with the above embodiments, and is not described herein again. In this embodiment, the cross-section of above-mentioned recess 5 is the circular arc setting, and this recess 5 is the ring of align to grid and arranges, and is similar with above-mentioned embodiment effect, and it is here no longer repeated, can select according to actual use condition service environment, and is nimble multi-purpose, simple structure, convenient to use, and the protection effect is showing.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (8)
1. The utility model provides a machine of water pump seals protection architecture which characterized in that: comprises that
The shaft sleeve is arranged between the mechanical seal and the impeller of the water pump;
wherein, a sealing structure is arranged on the shaft sleeve; the sealing structures are positioned on the inner surface and the outer surface of the shaft sleeve; the sealing structure comprises grooves arranged on the inner surface and the outer surface and sealing packing matched with the grooves.
2. The mechanical seal protection structure of a water pump according to claim 1, characterized in that: the bottom of the groove is provided with a collecting groove.
3. The mechanical seal protection structure of a water pump according to claim 1 or 2, characterized in that: the grooves are arranged in a spiral or uniformly arranged circular ring shape.
4. The mechanical seal protection structure of a water pump according to claim 1 or 2, characterized in that: the cross section of the groove is rectangular or circular arc.
5. The mechanical seal protection structure of a water pump according to claim 3, characterized in that: the cross section of the groove is rectangular or circular arc.
6. The mechanical seal protection structure of a water pump according to claim 1 or 2, characterized in that: the sealing packing is a packing.
7. The mechanical seal protection structure of a water pump according to claim 3, characterized in that: the sealing packing is a packing.
8. The mechanical seal protection structure of a water pump according to claim 4, characterized in that: the sealing packing is a packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210013099.3A CN114320993A (en) | 2022-01-06 | 2022-01-06 | Mechanical seal protection structure of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210013099.3A CN114320993A (en) | 2022-01-06 | 2022-01-06 | Mechanical seal protection structure of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114320993A true CN114320993A (en) | 2022-04-12 |
Family
ID=81025047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210013099.3A Pending CN114320993A (en) | 2022-01-06 | 2022-01-06 | Mechanical seal protection structure of water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114320993A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU29972U1 (en) * | 2002-12-27 | 2003-06-10 | Общество с ограниченной ответственностью Научно-производственный центр "Анод" | Shaft seal |
| US20050189722A1 (en) * | 2004-02-13 | 2005-09-01 | Roddis Alan J. | Mechanical seal |
| CN2872022Y (en) * | 2006-01-26 | 2007-02-21 | 安徽铜都阀门有限公司 | Axial-sealed valve with floating valve rod |
| KR20100084222A (en) * | 2009-01-16 | 2010-07-26 | 현대제철 주식회사 | Mechanical seal for pump |
| CN202431588U (en) * | 2011-12-20 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Centrifugal anticorrosive fan |
| CN102852820A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious sand pump capable of being idled and connected in series |
| US20140072463A1 (en) * | 2012-09-07 | 2014-03-13 | Herborner Pumpenfabrik J.H. Hoffmann GmbH & Co. KG | Pump with dry run protection |
| CN203670792U (en) * | 2014-01-06 | 2014-06-25 | 浙江福泰阀门有限公司 | Elastic filler and valve using the filler |
| CN205117748U (en) * | 2015-10-19 | 2016-03-30 | 劳志鸿 | High -lift submerged motor pump mechanical seal pressure relief device |
| CN210423754U (en) * | 2019-05-15 | 2020-04-28 | 沧州华意科技有限公司 | Valve sealing structure |
| CN210919463U (en) * | 2019-11-08 | 2020-07-03 | 无锡斯普流体设备有限公司 | Mechanical seal shaft sleeve pressure reducing structure of slurry pump |
| CN211288213U (en) * | 2019-11-28 | 2020-08-18 | 五矿营口中板有限责任公司 | Slurry pump annular sleeve seal |
| CN211288204U (en) * | 2019-10-30 | 2020-08-18 | 深圳市东润金属制品有限公司 | Oil-retaining bearing of fan |
| CN212563687U (en) * | 2020-06-30 | 2021-02-19 | 浙江青霄科技股份有限公司 | Combined sealing structure of sewage submersible electric pump |
| CN213235534U (en) * | 2020-09-23 | 2021-05-18 | 南京贝特制泵有限公司 | Novel deep-well pump stuffing box |
| CN213839624U (en) * | 2020-10-15 | 2021-07-30 | 上高集团股份有限公司 | Double-break double-close expanding type general valve |
| CN215257869U (en) * | 2021-05-11 | 2021-12-21 | 天工阀门集团有限公司 | Butterfly valve applied to gas and particle medium |
-
2022
- 2022-01-06 CN CN202210013099.3A patent/CN114320993A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU29972U1 (en) * | 2002-12-27 | 2003-06-10 | Общество с ограниченной ответственностью Научно-производственный центр "Анод" | Shaft seal |
| US20050189722A1 (en) * | 2004-02-13 | 2005-09-01 | Roddis Alan J. | Mechanical seal |
| CN2872022Y (en) * | 2006-01-26 | 2007-02-21 | 安徽铜都阀门有限公司 | Axial-sealed valve with floating valve rod |
| KR20100084222A (en) * | 2009-01-16 | 2010-07-26 | 현대제철 주식회사 | Mechanical seal for pump |
| CN102852820A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious sand pump capable of being idled and connected in series |
| CN202431588U (en) * | 2011-12-20 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Centrifugal anticorrosive fan |
| US20140072463A1 (en) * | 2012-09-07 | 2014-03-13 | Herborner Pumpenfabrik J.H. Hoffmann GmbH & Co. KG | Pump with dry run protection |
| CN203670792U (en) * | 2014-01-06 | 2014-06-25 | 浙江福泰阀门有限公司 | Elastic filler and valve using the filler |
| CN205117748U (en) * | 2015-10-19 | 2016-03-30 | 劳志鸿 | High -lift submerged motor pump mechanical seal pressure relief device |
| CN210423754U (en) * | 2019-05-15 | 2020-04-28 | 沧州华意科技有限公司 | Valve sealing structure |
| CN211288204U (en) * | 2019-10-30 | 2020-08-18 | 深圳市东润金属制品有限公司 | Oil-retaining bearing of fan |
| CN210919463U (en) * | 2019-11-08 | 2020-07-03 | 无锡斯普流体设备有限公司 | Mechanical seal shaft sleeve pressure reducing structure of slurry pump |
| CN211288213U (en) * | 2019-11-28 | 2020-08-18 | 五矿营口中板有限责任公司 | Slurry pump annular sleeve seal |
| CN212563687U (en) * | 2020-06-30 | 2021-02-19 | 浙江青霄科技股份有限公司 | Combined sealing structure of sewage submersible electric pump |
| CN213235534U (en) * | 2020-09-23 | 2021-05-18 | 南京贝特制泵有限公司 | Novel deep-well pump stuffing box |
| CN213839624U (en) * | 2020-10-15 | 2021-07-30 | 上高集团股份有限公司 | Double-break double-close expanding type general valve |
| CN215257869U (en) * | 2021-05-11 | 2021-12-21 | 天工阀门集团有限公司 | Butterfly valve applied to gas and particle medium |
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