CN204511954U - A kind of Novel self suction type centrifugal pump dynamic seal structure - Google Patents
A kind of Novel self suction type centrifugal pump dynamic seal structure Download PDFInfo
- Publication number
- CN204511954U CN204511954U CN201520046388.9U CN201520046388U CN204511954U CN 204511954 U CN204511954 U CN 204511954U CN 201520046388 U CN201520046388 U CN 201520046388U CN 204511954 U CN204511954 U CN 204511954U
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- pump
- centrifugal pump
- pump cover
- dynamic seal
- suction type
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Abstract
The utility model relates to a kind of Novel self suction type centrifugal pump dynamic seal structure, sealing structure comprises pump cover, be arranged on pump shaft in pump cover and sealing and be arranged on sub-propeller on pump shaft, described pump cover and the fitting surface of pump shaft are evenly laid with multiple first annular sealed groove, and described pump cover and the fitting surface of sub-propeller are evenly laid with multiple second ring packing groove, described multiple first annular sealed grooves are equidistantly laid on described pump cover vertically, described multiple second ring packing grooves are radially equidistantly laid on described pump cover.Compared with prior art, the utility model compact structure, processing cost is low, simple and practical, effectively can improve the sealing effect of self priming centrifugal pump, thus efficiently solve the seepy question of centrifugal pump, improve self priming centrifugal pump and use the Security and reliability that run, there is good application prospect.
Description
Technical field
The utility model relates to and belongs to centrifugal pump seal technical field, and a kind of dynamic seal structure, especially relates to a kind of Novel self suction type centrifugal pump dynamic seal structure.
Background technique
At present, along with the continuous progress of industrial technology, centrifugal pump purposes is more extensive, and the operating mode of use is more for complicated, and also more and more stricter to the requirement of its usability, without revealing, efficiently, noise free etc. all can be proposed by numerous clients.Self priming centrifugal pump has now been widely used in various work condition environment, as long as water is seen off by the effect of centrifugal force by self priming centrifugal pump, water pump is before work, the pump housing and intake pipe must be filled water and form vacuum state, when impeller quick rotation, blade impels water to rotate very soon, and the water be rotating flies under the influence of centrifugal force from impeller, after water in pump is dished out, the core of impeller forms vacuum area; The water at water source has been pressed onto in intake pipe by pipe network under the effect of atmospheric pressure (or hydraulic pressure), circulates with this, just can realize continuous pumpage.
As everyone knows, the quality of centrifugal pump seal directly affects working efficiency and the working stability of centrifugal pump, and when carrying out self priming centrifugal pump structural design, the factors such as the diameter of sub-propeller and blade shape, often determine the sealing reliability of centrifugal pump.But, owing to there is gap between sub-propeller and pump cover in existing self priming centrifugal pump dynamic seal structure; in the middle of actual motion, centrifugal pump often there will be water leakage phenomenon, directly affects the normal operation of centrifugal pump; time serious, even can cause very large economic loss to user.
Summary of the invention
The purpose of this utility model is exactly provide structure simple to overcome defect that above-mentioned prior art exists, and practicability is good, effectively can prevent the Novel self suction type centrifugal pump dynamic seal structure of water leakage phenomenon.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of Novel self suction type centrifugal pump dynamic seal structure, sealing structure comprises pump cover, be arranged on pump shaft in pump cover and sealing is arranged on sub-propeller on pump shaft, described pump cover and the fitting surface of pump shaft are evenly laid with multiple first annular sealed groove, and the fitting surface of described pump cover and sub-propeller are evenly laid with multiple second ring packing groove.
Described multiple first annular sealed grooves are equidistantly laid on described pump cover vertically.
Described first annular sealed groove is provided with 3-6 altogether.
Described multiple second ring packing grooves are radially equidistantly laid on described pump cover.
The second described ring packing groove is provided with 3-6 altogether.
The size of the described first annular sealed groove and the measure-alike of the second ring packing groove.
The width of the described first annular sealed groove is 2-4mm, and the degree of depth is 3-5mm.
In actual use, described first annular sealed groove and the second ring packing groove produce the effect in similar " labyrinth " to the water outlet in centrifugal pump, water outlet is through ring packing groove, similarly enter " labyrinth " passage, in the continuous drainage process of " labyrinth " passage, the pressure of water outlet significantly reduces, and automatically forms sealing moisture film, thus effectively can avoid pump cover and pump shaft, occurs between pump cover and sub-propeller leaking water problem.
Compared with prior art, the utility model has following characteristics:
1) owing to arranging annular seal groove respectively on the fitting surface of the fitting surface of pump cover and sub-propeller, pump cover and pump shaft, then, under the condition not increasing other accessory, just can realize double seal, thus effectively ensure the reliability of pump seal;
2) compact structure, processing cost is low, simple and practical, effectively can improve the sealing effect of self priming centrifugal pump, thus efficiently solve the seepy question of centrifugal pump, improve self priming centrifugal pump and use the Security and reliability that run, there is good application prospect.
Accompanying drawing explanation
Fig. 1 is a kind of Novel self suction type centrifugal pump of the utility model dynamic seal structure sectional view;
Description of symbols in figure:
1-pump cover, 2-pump shaft, 3-sub-propeller, the 4-the first annular seal groove, the 5-the second annular seal groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1:
As shown in Figure 1, a kind of Novel self suction type centrifugal pump dynamic seal structure, sealing structure comprises pump cover 1, is arranged on the pump shaft 2 in pump cover 1 and seals the sub-propeller 3 be arranged on pump shaft 2, pump cover 1 and the fitting surface of pump shaft 2 are evenly laid with multiple first annular sealed groove 4, and pump cover 1 and the fitting surface of sub-propeller 3 are evenly laid with multiple second ring packing groove 5.
Wherein, first annular sealed groove 4 is provided with 3 altogether, and is equidistantly laid in vertically on pump cover 1, and the second ring packing groove 5 is provided with 3 altogether, and be radially equidistantly laid on pump cover 1, the size of the first annular sealed groove 4 and the measure-alike of the second ring packing groove 5.
In the present embodiment, the width of the first annular sealed groove 4 and the second ring packing groove 5 is 4mm, and the degree of depth is 5mm.
In actual use, water outlet in first annular sealed groove 4 and the second ring packing groove 5 pairs of centrifugal pumps produces the effect in similar " labyrinth ", water outlet is through ring packing groove, similarly enter " labyrinth " passage, in the continuous drainage process of " labyrinth " passage, the pressure of water outlet significantly reduces, and automatically forms sealing moisture film, thus effectively can avoid pump cover and pump shaft, occurs between pump cover and sub-propeller leaking water problem.
Embodiment 2:
In the present embodiment, the first annular sealed groove 4 and the second ring packing groove 5 are respectively equipped with 5, and the width of the first annular sealed groove 4 and the second ring packing groove 5 is 2mm, and the degree of depth is 3mm.All the other are with embodiment 1.
Embodiment 3:
In the present embodiment, the first annular sealed groove 4 and the second ring packing groove 5 are respectively equipped with 6, and the width of the first annular sealed groove 4 and the second ring packing groove 5 is 3mm, and the degree of depth is 4mm.All the other are with embodiment 1.
Claims (7)
1. a Novel self suction type centrifugal pump dynamic seal structure, sealing structure comprises pump cover, be arranged on pump shaft in pump cover and sealing is arranged on sub-propeller on pump shaft, it is characterized in that, described pump cover and the fitting surface of pump shaft are evenly laid with multiple first annular sealed groove, and the fitting surface of described pump cover and sub-propeller are evenly laid with multiple second ring packing groove.
2. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 1, is characterized in that, described multiple first annular sealed grooves are equidistantly laid on described pump cover vertically.
3. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 1 and 2, is characterized in that, the described first annular sealed groove is provided with 3-6 altogether.
4. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 1, is characterized in that, described multiple second ring packing grooves are radially equidistantly laid on described pump cover.
5. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 1 or 4, is characterized in that, the second described ring packing groove is provided with 3-6 altogether.
6. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 1, is characterized in that, the size of the described first annular sealed groove and the measure-alike of the second ring packing groove.
7. a kind of Novel self suction type centrifugal pump dynamic seal structure according to claim 6, it is characterized in that, the width of the described first annular sealed groove is 2-4mm, and the degree of depth is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046388.9U CN204511954U (en) | 2015-01-22 | 2015-01-22 | A kind of Novel self suction type centrifugal pump dynamic seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046388.9U CN204511954U (en) | 2015-01-22 | 2015-01-22 | A kind of Novel self suction type centrifugal pump dynamic seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511954U true CN204511954U (en) | 2015-07-29 |
Family
ID=53709936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046388.9U Expired - Fee Related CN204511954U (en) | 2015-01-22 | 2015-01-22 | A kind of Novel self suction type centrifugal pump dynamic seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511954U (en) |
-
2015
- 2015-01-22 CN CN201520046388.9U patent/CN204511954U/en not_active Expired - Fee Related
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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: 20150729 Termination date: 20220122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |