CN201574943U - Chemical crystallization centrifugal pump - Google Patents
Chemical crystallization centrifugal pump Download PDFInfo
- Publication number
- CN201574943U CN201574943U CN2009202915300U CN200920291530U CN201574943U CN 201574943 U CN201574943 U CN 201574943U CN 2009202915300 U CN2009202915300 U CN 2009202915300U CN 200920291530 U CN200920291530 U CN 200920291530U CN 201574943 U CN201574943 U CN 201574943U
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- CN
- China
- Prior art keywords
- mechanical seal
- impeller
- motor
- settle
- centrifugal pump
- 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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Abstract
The utility model relates to a chemical crystallization centrifugal pump which comprises a pump body. A motor is arranged on the pump body and connected with an impeller through a shaft; a mechanical seal is arranged at the joint of the shaft and the impeller; a connecting cover arranged between the motor and the impeller is used for covering the mechanical seal; an external flushing pipeline is arranged near the connecting cover, and a mechanical seal baffle plate is arranged at the bottom of the connecting cover and at the lower end of the mechanical seal; and a steep pipe connected with conveying medium is welded on the mechanical seal baffle plate. The utility model has the benefits that the crystalline medium remaining on the mechanical seal is totally cleaned away, thereby ensuring the sealing effect and prolonging the service life of the mechanical seal.
Description
Technical field
The utility model relates to a kind of centrifugal pump, relates in particular to a kind of chemical industry crystallization centrifugal pump structure.
Background technique
Chemical centrifugal pump is made up of motor and pump two-part in the prior art, and pump and motor adopt associated mode to connect, and as shown in Figure 1, mainly is made up of parts such as motor 1, axle 2, connecting cap 3, mechanical seal 4, impeller 5, the pump housings 6.
Know by said structure, when existing structure has easy crystallinity medium in conveying, when pump is out of service, remaining medium will be attached on mechanical sealing linkage ring and the stationary ring face in crystallization, start shooting again next time when using,, cause mechanical sealing surface to destroy because crystallization exists, the sealing effect variation makes the mechanical seal lifetime simultaneously.
Summary of the invention
The utility model technical issues that need to address have provided a kind of chemical industry crystallization centrifugal pump, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the pump housing; On the pump housing, settle a motor; Described motor links to each other with impeller by axle; Settle a mechanical seal at axle and impeller connecting part; A connecting cap that is placed between motor and the impeller coats mechanical seal; At external flushing line of the other arrangement of the side of connecting cap, settle a machine block plate in the bottom of connecting cap, the lower end of mechanical seal; At steel pipe that connects fed sheet of a media of machine block plate welding.
Compared with prior art, the beneficial effects of the utility model are: the crystallinity medium that remains in the mechanical seal is all washed, thereby guarantee sealing effect, the working life of prolonged mechanical sealing.
Description of drawings
Fig. 1 is a chemical industry crystallization centrifugal pump structure schematic representation in the prior art;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: the pump housing 6; On the pump housing 6, settle a motor 1; Described motor 1 links to each other with impeller 5 by axle 2; Settle a mechanical seal 4 in axle 2 and impeller 5 connecting parts; A connecting cap 3 that is placed between motor 1 and the impeller 5 coats mechanical seal 4; At external flushing line 8 of the other arrangement of the side of connecting cap 3, settle a machine block plate 7 in the bottom of connecting cap 3, the lower end of mechanical seal 4; At steel pipe 9 that connects fed sheet of a media of machine block plate 7 welding;
On described external flushing line 8, settle a control valve 10.
In order to overcome the drawback of existing chemical industry crystallization pump seal, the utility model is made a call to a tapped hole and is made its external flushing line on connecting cap, and fixes a machine block plate with screw on connecting cap, is welded with the steel pipe of Φ 8X1 on the machine block plate.The utility model can make mechanical seal owing to running is generated heat when water pump operation.At this moment, the medium that water pump operation is carried is because pressure effect meeting is cooled off mechanical seal by steel pipe.When water pump stops, can open valve on the flushing line, make external clear water continuously to mechanical seal rinsing, since the gap of machine block plate and mechanical seal through the calculating of precision make the Q valve go into＞the Q baffle plate goes out, so the Korrosionsmedium that remains in the mechanical seal is all washed, thereby guarantee sealing effect, the working life of prolonged mechanical sealing.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (2)
1. a chemical industry crystallization centrifugal pump comprises: the pump housing; On the pump housing, settle a motor; Described motor links to each other with impeller by axle; Settle a mechanical seal at axle and impeller connecting part; A connecting cap that is placed between motor and the impeller coats mechanical seal; It is characterized in that:, settle a machine block plate in the bottom of connecting cap, the lower end of mechanical seal at external flushing line of the other arrangement of the side of connecting cap; At steel pipe that connects fed sheet of a media of machine block plate welding.
2. chemical industry crystallization centrifugal pump according to claim 1 is characterized in that: settle a control valve on described external flushing line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202915300U CN201574943U (en) | 2009-12-11 | 2009-12-11 | Chemical crystallization centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202915300U CN201574943U (en) | 2009-12-11 | 2009-12-11 | Chemical crystallization centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574943U true CN201574943U (en) | 2010-09-08 |
Family
ID=42694816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202915300U Expired - Fee Related CN201574943U (en) | 2009-12-11 | 2009-12-11 | Chemical crystallization centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574943U (en) |
-
2009
- 2009-12-11 CN CN2009202915300U patent/CN201574943U/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: 20100908 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |