CN112901550B - Dry-grinding-resistant automobile water pump - Google Patents
Dry-grinding-resistant automobile water pump Download PDFInfo
- Publication number
- CN112901550B CN112901550B CN202110203256.2A CN202110203256A CN112901550B CN 112901550 B CN112901550 B CN 112901550B CN 202110203256 A CN202110203256 A CN 202110203256A CN 112901550 B CN112901550 B CN 112901550B
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- Prior art keywords
- ring
- boss
- water pump
- static
- dry
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Classifications
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- 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
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- 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
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- 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
- F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an anti-dry-grinding automobile water pump, which comprises a pump body, a water sealing part arranged in the pump body, and a rotating shaft which is rotatably connected with the water sealing part and axially fixed, wherein the water sealing part comprises a static ring support ring, a static ring, an elastic part, a corrugated pipe and a movable ring which is sleeved on the rotating shaft and keeps contact with the static ring, one end of the static ring support ring is provided with a boss, the outer side wall of the boss is symmetrically provided with guide bulges along the length direction of the boss, the static ring is slidably sleeved on the boss, the elastic part respectively supports against the static ring and the static ring support ring through the corrugated pipe, the movable ring is uniformly provided with guide holes penetrating through the movable ring and blind holes which are arranged on the side wall of the movable ring and correspond to the guide holes, a sliding column capable of opening and closing the guide holes is arranged in the blind holes, the outer side of the blind holes is provided with an end cover in threaded connection with the blind holes, and a sliding column respectively supports against the sliding column and is arranged between the sliding column and the end cover, The second elastic part of end cover, anti dry grinding automobile water pump still include the skeleton oil blanket that sets up at quiet ring support ring inside wall.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an anti-dry-grinding automobile water pump.
Background
The automobile water pump is arranged at the position of a water outlet of the engine, and pumps out hot water in a water channel of the engine cylinder body through a fan belt to pump in cold water; the automobile water pump mostly depends on the mechanical seal to seal, the mechanical seal forms a sealing surface through a friction pair formed by the static ring and the moving ring, if cooling liquid is lacked in the pump or the cooling liquid is not filled into the water pump in time when the water pump is just started, the friction pair of the mechanical seal is subjected to dry grinding, so that the abrasion of the sealing surface is aggravated, and the service life of the mechanical seal is prolonged.
Disclosure of Invention
Based on this, it is necessary to provide an anti-dry-grinding automobile water pump.
The technical scheme adopted by the invention for solving the technical problems is as follows: anti dry grinding automobile water pump includes the pump body, installs water seal spare in the pump body, with water seal spare rotates the pivot of connecting and axial fixity, water seal spare includes quiet ring support ring, quiet ring, elastic component, bellows and cover and establishes in the pivot and with quiet ring keep in contact's rotating ring, quiet ring support ring is fixed to be set up in the pump body the one end of quiet ring support ring is equipped with the boss, the lateral wall of boss is followed the length direction symmetry of boss is equipped with the direction arch, quiet ring slidable ground cover is established on the boss, symmetry be equipped with on the inside wall of quiet ring with the guide way of the protruding adaptation of direction, the elastic component is established quiet ring with between the quiet ring support ring, the elastic component passes through the bellows supports respectively and holds quiet ring with quiet ring support ring, the equipartition is equipped with on the rotating ring runs through the water conservancy diversion hole of rotating ring and establish on the rotating ring lateral wall with the water conservancy diversion hole is corresponding The blind hole, the axis direction in water conservancy diversion hole with the axis direction of rotating ring is the same, the axis direction of blind hole with the axis direction of rotating ring is perpendicular, be equipped with in the blind hole and open, close the slip post in water conservancy diversion hole, the outside of blind hole be equipped with blind hole threaded connection's end cover, the slip post with be equipped with the second elastic component between the end cover, the second elastic component supports respectively holds the slip post the end cover, anti dry-grinding automobile water pump is still including setting up the skeleton oil blanket of quiet ring support inside wall.
Further, the pump body is cavity tubular structure, pump body inside wall upper end is equipped with the mounting groove, the inside wall diameter of mounting groove is greater than the inside wall diameter of the pump body, the inside wall of mounting groove still is equipped with first jump ring groove, first jump ring inslot be equipped with the first jump ring of first jump ring groove adaptation, the inside wall diameter in first jump ring groove is greater than the inside wall diameter of mounting groove.
Furthermore, the lower end of the static ring support ring is in contact with the lower end of the mounting groove, and the first clamp spring arranged on the first clamp spring groove abuts against the upper end of the static ring support ring.
Furthermore, the boss is of an annular structure, a position, close to the lower end, of the inner side wall of the boss is provided with a limiting step, a position, close to the upper end, of the inner side wall of the boss is provided with a second clamp spring groove, a second clamp spring matched with the second clamp spring groove is arranged in the second clamp spring groove, the limiting step is an annular part extending towards the axis of the static ring support ring, and the diameter of the inner side wall of the second clamp spring groove is larger than that of the inner side wall of the static ring support ring.
Further, the framework oil seal is fixedly installed on the inner side wall of the limiting step on the static ring supporting ring.
Furthermore, the rotating shaft is provided with a first shaft shoulder and a second shaft shoulder in sequence along the axis direction of the rotating shaft.
Furthermore, two bearings are sequentially sleeved on the rotating shaft, the first shaft shoulder and the second shaft shoulder are arranged between the two bearings, the first shaft shoulder and the second shaft shoulder are in contact with inner rings of the bearings, the second clamp spring abuts against the upper end of an outer ring of the bearing in contact with the first shaft shoulder, and the lower end of the outer ring of the bearing in contact with the second shaft shoulder is in contact with the upper end of the limiting step.
Furthermore, the stationary ring is of an annular structure, the outer side wall of the stationary ring is matched with the inner side wall of the pump body, and the inner side wall of the stationary ring is matched with the outer side wall of the boss.
Furthermore, the diameter of the blind hole is larger than that of the flow guide hole, and the distance from the bottom end of the blind hole to the axis of the rotating ring is smaller than the distance from any point on the flow guide hole to the axis of the rotating ring.
Further, the anti-dry grinding automobile water pump further comprises an impeller, and the impeller is fixedly sleeved at the lower end of the rotating shaft.
The invention has the beneficial effects that: the invention provides a dry-grinding resistant automobile water pump, wherein a water seal part is arranged in a pump body, a rotating shaft is rotationally connected with the water seal part and axially fixed, the water seal part comprises a static ring support ring, a static ring, an elastic part, a corrugated pipe and a movable ring which is sleeved on the rotating shaft and keeps contact with the static ring, the static ring support ring is fixedly arranged in the pump body, one end of the static ring support ring is provided with a boss, the outer side wall of the boss is symmetrically provided with guide bulges along the length direction of the boss, the static ring is slidably sleeved on the boss, the inner side wall of the static ring is symmetrically provided with guide grooves matched with the guide bulges, the elastic part is arranged between the static ring and the static ring support ring, the elastic part respectively supports against the static ring and the static ring support ring through the corrugated pipe, the inner side wall of the static ring support ring is provided with a framework oil seal, and a closed space can be formed in the water seal part. The rotating ring is uniformly provided with a flow guide hole penetrating through the rotating ring and a blind hole which is arranged on the side wall of the rotating ring and corresponds to the flow guide hole, a sliding column which can open and close the flow guide hole is arranged in the blind hole, an end cover which is in threaded connection with the blind hole is arranged on the outer side of the blind hole, a second elastic part which respectively supports the sliding column and the end cover is arranged between the sliding column and the end cover, when the rotating ring rotates to a certain speed along with the rotating shaft, the sliding column opens the flow guide hole under the action of centrifugal force, a part of lubricating medium enters, when the rotating speed of the rotating shaft is reduced to a certain rotating speed, the sliding column closes the flow guide hole under the support of the second elastic part, a part of the lubricating medium is remained in the water seal part, the lubricating medium is ensured to be always contacted with the contact surfaces of the rotating ring and the static ring, an anti-wear medium is constantly provided for a friction pair of the water seal part, and the phenomenon of dry grinding of the machine seal in the pump is effectively avoided.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a perspective view of an anti-dry grinding automotive water pump according to an embodiment of the present invention;
FIG. 2 is an exploded view of the anti-dry grind automotive water pump of FIG. 1;
FIG. 3 is a cross-sectional view of the anti-dry grind automotive water pump of FIG. 1;
FIG. 4 is a perspective view of the pump body shown in FIG. 1;
FIG. 5 is a perspective view of the stationary ring support ring shown in FIG. 2;
FIG. 6 is a perspective view of the stationary ring shown in FIG. 2;
FIG. 7 is an exploded view of the rotating ring of FIG. 2;
FIG. 8 is a cross-sectional view of the rotating ring of FIG. 2;
fig. 9 is a perspective view of the rotary shaft shown in fig. 2.
The names and the numbers of the parts in the figure are respectively as follows:
the anti-dry grinding automobile water pump comprises an anti-dry grinding automobile water pump 100, a pump body 10, a mounting groove 101, a first clamp spring groove 1011, a first clamp spring 1012, a mounting table 102, a mounting through hole 1021, a water outlet 103, a static ring support ring 21, a boss 211, a limiting step 212, a second clamp spring groove 213, a second clamp spring 214, a guide protrusion 215, a static ring 22, a guide groove 221, an elastic part 23, a movable ring 24, a guide hole 241, a blind hole 242, a sliding column 243, an end cover 244, a second elastic part 245, a corrugated pipe 25, a framework oil seal 26, a rotating shaft 30, a first shaft shoulder 301, a second shaft shoulder 302, a bearing 31 and an impeller 40.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1 to 9, an embodiment of the invention provides an anti-dry-abrasion automobile water pump 100, which includes a pump body 10, a water seal installed in the pump body 10, a rotating shaft 30 rotatably connected with the water seal and axially fixed, and an impeller 40 fixedly sleeved on a lower end of the rotating shaft 30.
The pump body 10 is a hollow cylindrical structure, the upper end of the inner side wall of the pump body 10 is provided with a mounting groove 101, the lower end of the pump body 10 is provided with a mounting platform 102, and the side wall of the pump body 10 is further provided with a water outlet 103. The inside wall diameter of mounting groove 101 is greater than the inside wall diameter of the pump body 10, and the inside wall of mounting groove 101 still is equipped with first jump ring groove 1011, is equipped with in the first jump ring groove 1011 with the first jump ring 1012 of first jump ring groove 1011 adaptation, and the inside wall diameter of first jump ring groove 1011 is greater than the inside wall diameter of mounting groove 101. The mounting table 102 is of an annular structure, and mounting through holes 1021 are uniformly distributed on the mounting table 102.
The water seal part comprises a static ring support ring 21, a static ring 22 which is sleeved on the static ring support ring 21 and slides axially relative to the static ring support ring 21, an elastic part 23 which is sleeved on the static ring support ring 21 and two ends of which respectively abut against the static ring support ring 21 and the static ring 22, a dynamic ring 24 which keeps contact with the static ring 22 and coaxially rotates relative to the static ring 22, and a corrugated pipe 25 one end of which abuts against the static ring support ring 21 through the elastic part 23 and the other end of which abuts against the static ring 22 through the elastic part 23.
The stationary ring support ring 21 is of an annular structure, the side wall of the stationary ring support ring 21 is matched with the side wall of the mounting groove 101 on the pump body 10, the lower end of the stationary ring support ring 21 is in contact with the lower end of the mounting groove 101, and the first snap spring 1012 arranged on the first snap spring groove 1011 abuts against the upper end of the stationary ring support ring 21, so that the stationary ring support ring 21 is fixedly arranged in the pump body 10. The one end of quiet ring support ring 21 is equipped with boss 211, and boss 211 is the loop configuration, and the position that the inside wall of boss 211 is close to the lower extreme is equipped with spacing step 212, and the position that the inside wall of boss 211 is close to the upper end is equipped with second jump ring groove 213, is equipped with the second jump ring 214 with second jump ring groove 213 adaptation in the second jump ring groove 213, and the length direction of boss 212 is followed to the lateral wall of boss 212 still the symmetry and is provided with guide protrusion 215. The limit step 212 is an annular member extending toward the axis of the stationary ring support ring 21. The diameter of the inner wall of the second clamp spring groove 213 is larger than that of the inner wall of the stationary ring support ring 21.
The stationary ring 22 is of an annular structure, the outer side wall of the stationary ring 22 is matched with the inner side wall of the pump body 10, the inner side wall of the stationary ring 22 is matched with the outer side wall of the boss 211, and the inner side wall of the stationary ring 22 is symmetrically provided with guide grooves 221 matched with the guide protrusions 215, so that the guide protrusions 215 can be accommodated in the guide grooves 221 of the stationary ring 22, and the stationary ring 22 is circumferentially fixed relative to the stationary ring supporting ring 21.
The elastic member 23 is a compression spring.
The rotating ring 24 is fixedly sleeved on the rotating shaft 30, and the rotating ring 24 is of an annular structure. The dynamic ring 24 is uniformly provided with flow guiding holes 241, and the side wall of the dynamic ring 24 is provided with blind holes 242 corresponding to the flow guiding holes 241. The diversion hole 241 penetrates through the upper end face and the lower end face of the movable ring 24, and the axial direction of the diversion hole 241 is the same as that of the movable ring 24. The axial direction of the blind hole 242 is perpendicular to the axial direction of the rotating ring 24, the diameter of the blind hole 242 is larger than that of the flow guide hole 241, and the distance from the bottom end of the blind hole 242 to the axial line of the rotating ring 24 is smaller than the distance from any point on the flow guide hole 241 to the axial line of the rotating ring 24. The blind hole 242 is internally provided with a sliding column 243 capable of opening and closing the flow guide hole 241, the sliding column 243 is matched with the blind hole 242, and the sliding column 243 can slide in the blind hole 242. An end cover 244 is arranged on the outer side of the blind hole 242, the end cover 244 is in threaded connection with the blind hole 242, a second elastic member 245 is arranged between the sliding column 243 and the end cover 244, one end of the second elastic member 245 abuts against the sliding column 243, and the other end of the second elastic member 245 abuts against the end cover 244. The second elastic member 245 is a compression spring.
The water seal further comprises a framework oil seal 26, and the framework oil seal 26 is fixedly arranged on the inner side wall of the limiting step 212 on the static ring support ring 21.
The rotating shaft 30 is provided with a first shoulder 301 and a second shoulder 302 in sequence along the axial direction of the rotating shaft 30. The rotating shaft 30 is further sequentially sleeved with two bearings 31, and the first shaft shoulder 301 and the second shaft shoulder 302 are both arranged between the two bearings 31. The first shaft shoulder 301 and the second shaft shoulder 302 are both in contact with the inner ring of the bearing 31, the second clamp spring 214 abuts against the upper end of the outer ring of the bearing 31 in contact with the first shaft shoulder 201, and the lower end of the outer ring of the bearing 31 in contact with the second shaft shoulder 202 is in contact with the upper end of the limiting step 212.
Specifically, a water seal is arranged in a pump body 10, a rotating shaft 30 is rotationally connected with the water seal and axially fixed, the water seal comprises a static ring support ring 21, a static ring 22, an elastic part 23, a corrugated pipe 25 and a movable ring 24 which is sleeved on the rotating shaft 30 and keeps contact with the static ring 22, the static ring support ring 21 is fixedly arranged in the pump body 10, one end of the static ring support ring 21 is provided with a boss 211, the outer side wall of the boss 211 is symmetrically provided with guide protrusions 215 along the length direction of the boss 211, the static ring 22 is slidably sleeved on the boss 211, the inner side wall of the static ring 22 is symmetrically provided with guide grooves 221 matched with the guide protrusions 215, the elastic part 23 is arranged between the static ring 22 and the static ring support ring 21, the elastic part 23 respectively supports against the static ring 22 and the static ring support ring 21 through the corrugated pipe 25, the inner side wall of a limit step 212 is provided with a framework oil seal 26, the movable ring 24 is uniformly provided with guide holes 241 penetrating through the movable ring 24 and blind holes 242 corresponding to the guide holes 241, a sliding column 243 capable of opening and closing the flow guide hole 241 is arranged in the blind hole 242, an end cover 244 in threaded connection with the blind hole 242 is arranged on the outer side of the blind hole 242, and a second elastic element 245 respectively abutting against the sliding column 243 and the end cover 244 is arranged between the sliding column 243 and the end cover 244.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is intended that the appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides an anti automobile water pump that dryly grinds which characterized in that: anti dry grinding automobile water pump includes the pump body, installs water seal spare in the pump body, with water seal spare rotates the pivot of connecting and axial fixity, water seal spare includes quiet ring support ring, quiet ring, elastic component, bellows and cover and establishes in the pivot and with quiet ring keep in contact's rotating ring, quiet ring support ring is fixed to be set up in the pump body the one end of quiet ring support ring is equipped with the boss, the lateral wall of boss is followed the length direction symmetry of boss is equipped with the direction arch, quiet ring slidable ground cover is established on the boss, symmetry be equipped with on the inside wall of quiet ring with the guide way of the protruding adaptation of direction, the elastic component is established quiet ring with between the quiet ring support ring, the elastic component passes through the bellows supports respectively and holds quiet ring with quiet ring support ring, the equipartition is equipped with on the rotating ring runs through the water conservancy diversion hole of rotating ring and establish on the rotating ring lateral wall with the water conservancy diversion hole is corresponding The blind hole, the axis direction in water conservancy diversion hole with the axis direction of rotating ring is the same, the axis direction of blind hole with the axis direction of rotating ring is perpendicular, be equipped with in the blind hole and open, close the slip post in water conservancy diversion hole, the outside of blind hole be equipped with blind hole threaded connection's end cover, the slip post with be equipped with the second elastic component between the end cover, the second elastic component supports respectively holds the slip post the end cover, anti dry-grinding automobile water pump is still including setting up the skeleton oil blanket of quiet ring support inside wall.
2. The anti-dry-abrasion automobile water pump as claimed in claim 1, wherein: the pump body is cavity tubular structure, pump body inside wall upper end is equipped with the mounting groove, the inside wall diameter of mounting groove is greater than the inside wall diameter of the pump body, the inside wall of mounting groove still is equipped with first jump ring groove, first jump ring inslot be equipped with the first jump ring of first jump ring groove adaptation, the inside wall diameter in first jump ring groove is greater than the inside wall diameter of mounting groove.
3. The anti-dry-abrasion automobile water pump as claimed in claim 2, wherein: the lower end of the static ring support ring is in contact with the lower end of the mounting groove, and the first clamp spring arranged on the first clamp spring groove abuts against the upper end of the static ring support ring.
4. An anti-dry-abrasion automotive water pump as claimed in any one of claims 1 to 3, wherein: the boss is of an annular structure, a limiting step is arranged at a position, close to the lower end, of the inner side wall of the boss, a second clamp spring groove is formed in a position, close to the upper end, of the inner side wall of the boss, a second clamp spring is arranged in the second clamp spring groove, the second clamp spring is matched with the second clamp spring groove, the limiting step is an annular part extending towards the axis center of the static ring support ring, and the diameter of the inner side wall of the second clamp spring groove is larger than that of the inner side wall of the static ring support ring.
5. The automobile water pump resisting dry grinding as claimed in claim 4, wherein: the framework oil seal is fixedly arranged on the inner side wall of the limiting step on the static ring support ring.
6. The automobile water pump of claim 5, wherein: the rotating shaft is sequentially provided with a first shaft shoulder and a second shaft shoulder along the direction of the axis of the rotating shaft.
7. The automobile water pump of claim 6, wherein: the rotating shaft is sequentially sleeved with two bearings, the first shaft shoulder and the second shaft shoulder are arranged between the bearings, the first shaft shoulder and the second shaft shoulder are in contact with inner rings of the bearings, the second clamp spring is abutted against the upper end of an outer ring of the bearing in contact with the first shaft shoulder, and the lower end of the outer ring of the bearing in contact with the upper end of the limiting step is in contact with the second shaft shoulder.
8. An anti-dry-abrasion automobile water pump as claimed in any one of claims 1 to 3, wherein: the static ring is of an annular structure, the outer side wall of the static ring is matched with the inner side wall of the pump body, and the inner side wall of the static ring is matched with the outer side wall of the boss.
9. An anti-dry-abrasion automobile water pump as claimed in any one of claims 1 to 3, wherein: the diameter of the blind hole is larger than that of the flow guide hole, and the distance from the bottom end of the blind hole to the axis of the rotating ring is smaller than the distance from any point on the flow guide hole to the axis of the rotating ring.
10. An anti-dry-abrasion automobile water pump as claimed in any one of claims 1 to 3, wherein: the anti-dry-grinding automobile water pump further comprises an impeller, and the impeller is fixedly sleeved at the lower end of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110203256.2A CN112901550B (en) | 2021-02-24 | 2021-02-24 | Dry-grinding-resistant automobile water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110203256.2A CN112901550B (en) | 2021-02-24 | 2021-02-24 | Dry-grinding-resistant automobile water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112901550A CN112901550A (en) | 2021-06-04 |
| CN112901550B true CN112901550B (en) | 2022-06-03 |
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ID=76124481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110203256.2A Active CN112901550B (en) | 2021-02-24 | 2021-02-24 | Dry-grinding-resistant automobile water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112901550B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB245017A (en) * | 1925-07-01 | 1925-12-31 | Arthur Redman Wilfley | Improvements in centrifugal pumps |
| CN103216466A (en) * | 2013-04-12 | 2013-07-24 | 丹东克隆集团有限责任公司 | Pumping serial mechanical seal device and pumping ring thereof |
| CN203770195U (en) * | 2013-12-26 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Mechanical sealing device for high temperature medium |
| CN110905821A (en) * | 2019-11-28 | 2020-03-24 | 宜兴市宙斯泵业有限公司 | Corrosion-resistant anti-dry-grinding centrifugal pump |
| CN210660716U (en) * | 2019-09-27 | 2020-06-02 | 阜宁泰利泵业有限公司 | Water pump sealing device |
-
2021
- 2021-02-24 CN CN202110203256.2A patent/CN112901550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB245017A (en) * | 1925-07-01 | 1925-12-31 | Arthur Redman Wilfley | Improvements in centrifugal pumps |
| CN103216466A (en) * | 2013-04-12 | 2013-07-24 | 丹东克隆集团有限责任公司 | Pumping serial mechanical seal device and pumping ring thereof |
| CN203770195U (en) * | 2013-12-26 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Mechanical sealing device for high temperature medium |
| CN210660716U (en) * | 2019-09-27 | 2020-06-02 | 阜宁泰利泵业有限公司 | Water pump sealing device |
| CN110905821A (en) * | 2019-11-28 | 2020-03-24 | 宜兴市宙斯泵业有限公司 | Corrosion-resistant anti-dry-grinding centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112901550A (en) | 2021-06-04 |
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