CN201934363U - Novel structure applied to dynamic seal of horizontal chemical pump - Google Patents
Novel structure applied to dynamic seal of horizontal chemical pump Download PDFInfo
- Publication number
- CN201934363U CN201934363U CN2010206840946U CN201020684094U CN201934363U CN 201934363 U CN201934363 U CN 201934363U CN 2010206840946 U CN2010206840946 U CN 2010206840946U CN 201020684094 U CN201020684094 U CN 201020684094U CN 201934363 U CN201934363 U CN 201934363U
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- China
- Prior art keywords
- pump
- axle
- shaft
- novel structure
- pump cover
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- 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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Abstract
The utility model relates to a novel structure applied to dynamic seal of a horizontal chemical pump, comprising a laryngeal shaft sleeve, a pump cover, an impeller, an auxiliary impeller, a floating ring, a sealing gland, a rubber pressing plate, a sealing shaft sleeve and a shaft. The novel structure is characterized in that a thread is arranged on the laryngeal shaft sleeve; the direction of the thread is consistent with the rotation direction of the shaft; a small clearance is remained between an internal hole of the pump cover and the laryngeal shaft sleeve; a communication hole is arranged on the pump cover; two ends of the communication hole are respectively connected with a high-pressure area medium of an auxiliary impeller chamber and a low-pressure area of an impeller chamber; and a floating throttling ring is arranged on the shaft in front of the rubber pressing plate that is used for shutoff sealing and is matched with the shaft in a sliding way in the axial direction. The novel structure has the advantages that parts of the novel structure to be replaced are small parts such as the laryngeal shaft sleeve and the like, therefore, the cost can be greatly reduced; and furthermore, the power consumption of the pump can be reduced by reducing the external diameter of the auxiliary impeller, so that the efficiency of the pump can be improved.
Description
Technical field
The utility model relates to a kind of new structure that is applied to horizontal chemical pump dynamic seal.
Background technique
The dynamic seal structure of horizontal chemical pump is applied in some solid-liquid two-phase flows are not suitable for using mechanical seal with easy crystallization occasion usually; the structure of its dynamic seal is exactly the anti-lift reverse with the impeller lift of rotation generation by sub-propeller; offset the leakage of medium from the axle envelope; in the real process of its use; because the particularity of medium; the medium that normally contains solid impurity or have crystallization to separate out; so the wearing and tearing meeting of its sub-propeller is very big; and be unlikely to reveal in order to produce enough anti-lifts; also to do the external diameter of sub-propeller big as far as possible; so; the runner of sub-propeller stops up easily; blade also is worn easily; the workload and the replacing frequency of each replacing sub-propeller are all very big, and the water conservancy diversion gusset in its sub-propeller chamber is also stopped up by solid matter easily, the aggravation wearing and tearing; add the loss of shutting down sealing, so whole dynamic seal system is that maintenance cost is very high.
Summary of the invention
The purpose of this utility model is the existing sub-propeller wear problems of dynamic seal structure that solves horizontal chemical pump in the prior art, and a kind of new structure that is applied to horizontal chemical pump dynamic seal is provided.A kind of new structure that is applied to horizontal chemical pump dynamic seal of the utility model design; comprise throat's axle sleeve; pump cover; impeller; sub-propeller, floating ring, sealing gland; the rubber pressing plate; sealing axle sleeve, axle is characterized in that: offer screw thread on throat's axle sleeve; hand of spiral is consistent with the sense of rotation of axle; stay little gap between pump cover endoporus and throat's axle sleeve, have intercommunicating pore on the pump cover, the two ends of intercommunicating pore are communicated with sub-propeller chamber zone of high pressure medium and blade wheel chamber's low pressure area respectively; on the axle before the rubber pressing plate of shutting down sealing a unsteady restrictor ring is set, floating ring prolongs axially and axle is slidingly matched.The part that the utility model has the advantages that the required replacing of new structure is the such finding of throat's axle sleeve, so its cost reduction is a lot, and by reducing the consumed power that the sub-propeller external diameter reduces pump, has improved the efficient of pump.
Description of drawings
Figure is a structural representation of the present utility model.
Below in conjunction with accompanying drawing and construction embodiment the utility model is made detailed operation instruction.
Embodiment
Comprise throat's axle sleeve 1 among the figure; pump cover 2; impeller 3; sub-propeller 4; unsteady restrictor ring 5, sealing gland 6, rubber pressing plate 7; sealing axle sleeve 8; axle 9 is characterized in that: offer screw thread 10 on throat's axle sleeve, hand of spiral is consistent with the sense of rotation of axle; between pump cover endoporus and throat's axle sleeve, stay little gap; have intercommunicating pore 11 on the pump cover, the two ends of intercommunicating pore are communicated with zone of high pressure, sub-propeller chamber 12 and blade wheel chamber's low pressure area 13 respectively, on the axle before the rubber pressing plate of shutting down sealing 14 a unsteady restrictor ring are set; unsteady restrictor ring prolongs axially and axle is slidingly matched blade wheel chamber's low pressure area 15.
Make the throat's axle sleeve between former blade wheel chamber and the sub-propeller chamber into the identical rotation direction of sense of rotation worm structure, when producing rotation, can better stop the MEDIA FLOW of blade wheel chamber to the sub-propeller chamber with axle, and screw thread and little gap can effectively stop solid to rush at the sub-propeller chamber, reduce the pressure of sub-propeller chamber, thereby can reduce the external diameter of sub-propeller; On the pump cover of separating blade wheel chamber and sub-propeller chamber, add intercommunicating pore then, guide the high-pressure medium in the sub-propeller chamber low pressure area part of blade wheel chamber into, reach the sub-propeller of same external diameter, can outwards reveal by more effective prevention medium; Simultaneously before the rubber pressing plate of shutting down sealing a unsteady restrictor ring is set, the moment medium is inhomogeneous when mobile because of gravity produces when shutting down, and can move by the integral body of ring, reaches the effect that better compresses the rubber pressing plate, reaches the purpose of shutting down sealing.In sum, the renewal part of new structure more is the such finding of throat's axle sleeve, so its cost reduction is a lot, and by reducing the consumed power that the sub-propeller external diameter reduces pump, has improved the efficient of pump.
Claims (1)
1. new structure that is applied to horizontal chemical pump dynamic seal; comprise throat's axle sleeve; pump cover; impeller; sub-propeller, floating ring, sealing gland; the rubber pressing plate; sealing axle sleeve, axle is characterized in that: offer screw thread on throat's axle sleeve; hand of spiral is consistent with the sense of rotation of axle; stay little gap between pump cover endoporus and throat's axle sleeve, have intercommunicating pore on the pump cover, the two ends of intercommunicating pore are communicated with sub-propeller chamber zone of high pressure medium and blade wheel chamber's low pressure area respectively; on the axle before the rubber pressing plate of shutting down sealing a unsteady restrictor ring is set, floating ring prolongs axially and axle is slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206840946U CN201934363U (en) | 2010-12-28 | 2010-12-28 | Novel structure applied to dynamic seal of horizontal chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206840946U CN201934363U (en) | 2010-12-28 | 2010-12-28 | Novel structure applied to dynamic seal of horizontal chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934363U true CN201934363U (en) | 2011-08-17 |
Family
ID=44445882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206840946U Expired - Fee Related CN201934363U (en) | 2010-12-28 | 2010-12-28 | Novel structure applied to dynamic seal of horizontal chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015080A (en) * | 2016-07-25 | 2016-10-12 | 浙江工业大学 | Anti-abrasion seal device for submersible sewage pump |
-
2010
- 2010-12-28 CN CN2010206840946U patent/CN201934363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015080A (en) * | 2016-07-25 | 2016-10-12 | 浙江工业大学 | Anti-abrasion seal device for submersible sewage pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20171228 |