CN2818869Y - Self-balancing axial centrifugal pump - Google Patents
Self-balancing axial centrifugal pump Download PDFInfo
- Publication number
- CN2818869Y CN2818869Y CN 200520118101 CN200520118101U CN2818869Y CN 2818869 Y CN2818869 Y CN 2818869Y CN 200520118101 CN200520118101 CN 200520118101 CN 200520118101 U CN200520118101 U CN 200520118101U CN 2818869 Y CN2818869 Y CN 2818869Y
- Authority
- CN
- China
- Prior art keywords
- axial force
- pressure cavity
- balancing
- pump
- balancing drum
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a centrifugal pump capable of automatically balancing axial force, which comprises a pump casing and a pump shaft, wherein the pump casing is respectively provided with a high pressure cavity and a low pressure cavity inside. A balance drum is sheathed between the high pressure cavity and the low pressure cavity on the pump shaft. The area of the inner end surface of the balance drum in the high pressure cavity is smaller than the area of the outer end surface of the balance drum in the low pressure cavity. The outer circle surface of the balance drum is matched with the inner surface of the pump casing, and the fit clearance between the outer circle surface of the balance drum and the inner surface of the pump casing is from 0.05 to 0.3 mm. The inner surface of the pump casing on the outer side of the outer end surface of the balance drum is provided with a throttle plate. A throttle cavity is formed between the throttle plate and the outer side of the outer end surface of the balance drum. The purpose of the utility model is to provide a centrifugal pump capable of automatically balancing axial force which has long service life.
Description
Technical field
But the utility model relates to the centrifugal pump of the axial force on the pump shaft that a kind of autobalance acts on centrifugal pump.
Background technique
Centrifugal pump is the equipment that liquid is carried in a kind of very common being used to, existing centrifugal pump is in running, and the responsive to axial force that its pump shaft is usually changed causes pump shaft axial displacement to occur, can cause the vibration of relevant component, wearing and tearing aggravation thus, and then make the centrifugal pump can't proper functioning.
The model utility content
The purpose of this utility model is to provide a kind of automatically balancing axial force centrifugal pump of long service life.
Automatically balancing axial force centrifugal pump of the present utility model, comprise pump case and pump shaft, in pump case, be respectively equipped with hyperbaric chamber and low-pressure cavity, be set with balancing drum being positioned between described hyperbaric chamber and the described low-pressure cavity on the described pump shaft, balancing drum is positioned at the area of interior edge face of hyperbaric chamber less than the area of the exterior edge face that is positioned at low-pressure cavity, the periphery of balancing drum matches with the internal surface of described pump case, its matching gap is 0.05-0.3mm, the described pump case internal surface place that is positioned at the outside, described balancing drum exterior edge face is provided with Rectifier plate, and forms a throttling chamber between the outside, exterior edge face of Rectifier plate and described balancing drum.
Automatically balancing axial force centrifugal pump of the present utility model, the outer end of wherein said balancing drum has discoidal boss, have a choke zone between the interior edge face of boss and the described pump case internal surface, the matching gap of the periphery of described balancing drum and described pump case internal surface is 0.015-0.2mm.
Automatically balancing axial force centrifugal pump of the present utility model, wherein said Rectifier plate adopts bolt, and the matching gap of the periphery of described balancing drum and described pump case internal surface is 0.01-0.25mm.
Automatically balancing axial force centrifugal pump of the present utility model, the matching gap of the periphery of wherein said balancing drum and described pump case internal surface is 0.02mm.
Automatically balancing axial force centrifugal pump of the present utility model in use, when pump shaft be subjected to left responsive to axial force and during to left movement, the flow of the flow direction low-pressure cavity in the hyperbaric chamber can reduce, the pressure of liquid effects in the exterior edge face of balancing drum in the low-pressure cavity will be tending towards reducing, liquid effects in the hyperbaric chamber then can be tending towards improving in the pressure of the inner end of balancing drum, make pump shaft be subjected to being tending towards under the effect of responsive to axial force fluid pressure in hyperbaric chamber left reducing, the responsive to axial force that is subjected on pump shaft tends to balance.When pump shaft is subjected to responsive to axial force to the right and moves right, the flow of the flow direction low-pressure cavity in the hyperbaric chamber can increase, the pressure of liquid effects in the exterior edge face of balancing drum in the low-pressure cavity will be tending towards increasing, liquid effects in the hyperbaric chamber then can be tending towards reducing in the pressure of the inner end of balancing drum, make pump shaft be subjected to being tending towards under the effect of responsive to axial force fluid pressure in low-pressure cavity to the right reducing, the responsive to axial force that is subjected on pump shaft tends to balance.So automatically balancing axial force centrifugal pump of the present utility model has the characteristics of long service life.
Other details of automatically balancing axial force centrifugal pump of the present utility model and characteristics can just can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the main pseudosection of automatically balancing axial force centrifugal pump structure schematic representation of the present utility model.
Embodiment
As shown in Figure 1, automatically balancing axial force centrifugal pump of the present utility model comprises pump case 1 and pump shaft 2, is respectively equipped with hyperbaric chamber 3 and low-pressure cavity 4 in pump case 1, be set with balancing drum 5 on the pump shaft 2 on the shaft part that is positioned between hyperbaric chamber 3 and the low-pressure cavity 4, balancing drum 5 adopts flat being good for to link to each other with pump shaft 2.Balancing drum 5 is positioned at the area of interior edge face of hyperbaric chamber 3 less than the area of the exterior edge face that is positioned at low-pressure cavity 4, the periphery of balancing drum 5 matches with the internal surface of pump case 1, its matching gap 6 is 0.05mm, perhaps be 0.06mm or 0.08mm or 0.1mm or 0.15mm or 0.18mm or 0.2mm or 0.22mm or 0.25mm or 0.28mm or 0.3mm, the outer end of balancing drum 5 has discoidal boss 11, has a choke zone 9 between the interior edge face of boss 11 and pump case 1 internal surface, the pump case 1 internal surface place that is positioned at the outside, balancing drum 5 exterior edge faces is provided with Rectifier plate 7, Rectifier plate 7 adopts bolt 10 fixing, and forms a throttling chamber 8 between the outside, exterior edge face of Rectifier plate 7 and balancing drum 5.
Automatically balancing axial force centrifugal pump of the present utility model in use, when pump shaft 2 be subjected to left responsive to axial force and during to left movement, the flow of the flow direction low-pressure cavity 4 in the hyperbaric chamber 3 can reduce, the pressure of liquid effects in the exterior edge face of balancing drum 5 in the low-pressure cavity 4 will be tending towards reducing, liquid effects in the hyperbaric chamber 3 then can be tending towards improving in the pressure of the inner end of balancing drum 5, make pump shaft 2 be subjected to being tending towards under the effect of responsive to axial force fluid pressure in hyperbaric chamber 3 left reducing, the responsive to axial force that is subjected on pump shaft 2 tends to balance.When pump shaft 2 is subjected to responsive to axial force to the right and moves right, the flow of the flow direction low-pressure cavity 4 in the hyperbaric chamber 3 can increase, the pressure of liquid effects in the exterior edge face of balancing drum 5 in the low-pressure cavity 4 will be tending towards increasing, liquid effects in the hyperbaric chamber 3 then can be tending towards reducing in the pressure of the inner end of balancing drum 5, make pump shaft 2 be subjected to being tending towards under the effect of responsive to axial force fluid pressure in low-pressure cavity 4 to the right reducing, the responsive to axial force that is subjected on pump shaft 2 tends to balance.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (4)
1. automatically balancing axial force centrifugal pump, comprise pump case (1) and pump shaft (2), in pump case (1), be respectively equipped with hyperbaric chamber (3) and low-pressure cavity (4), it is characterized in that being positioned on the described pump shaft (2) between described hyperbaric chamber (3) and the described low-pressure cavity (4) and be set with balancing drum (5), balancing drum (5) is positioned at the area of interior edge face of hyperbaric chamber (3) less than the area of the exterior edge face that is positioned at low-pressure cavity (4), the periphery of balancing drum (5) matches with the internal surface of described pump case (1), its matching gap (6) is 0.05-0.3mm, described pump case (1) the internal surface place that is positioned at the outside, described balancing drum (5) exterior edge face is provided with Rectifier plate (7), and forms a throttling chamber (8) between the outside, exterior edge face of Rectifier plate (7) and described balancing drum (5).
2. automatically balancing axial force centrifugal pump according to claim 1, the outer end that it is characterized in that described balancing drum (5) has discoidal boss (11), have a choke zone (9) between the interior edge face of boss (11) and described pump case (1) internal surface, the matching gap (6) of the periphery of described balancing drum (5) and described pump case (1) internal surface is 0.1-0.25mm.
3. automatically balancing axial force centrifugal pump according to claim 2 is characterized in that described Rectifier plate (7) adopts bolt (10) fixing, and the matching gap (6) of the periphery of described balancing drum (5) and described pump case (1) internal surface is 0.018-0.1mm.
4. automatically balancing axial force centrifugal pump according to claim 3 is characterized in that the periphery of described balancing drum (5) and the matching gap (6) of described pump case (1) internal surface are 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118101 CN2818869Y (en) | 2005-08-30 | 2005-08-30 | Self-balancing axial centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118101 CN2818869Y (en) | 2005-08-30 | 2005-08-30 | Self-balancing axial centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818869Y true CN2818869Y (en) | 2006-09-20 |
Family
ID=37004925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520118101 Expired - Fee Related CN2818869Y (en) | 2005-08-30 | 2005-08-30 | Self-balancing axial centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818869Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088713A1 (en) * | 2015-11-23 | 2017-06-01 | 上海连成（集团）有限公司 | Multi-stage pump |
-
2005
- 2005-08-30 CN CN 200520118101 patent/CN2818869Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088713A1 (en) * | 2015-11-23 | 2017-06-01 | 上海连成（集团）有限公司 | Multi-stage 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: 20060920 |