CN109780446A - A kind of centrifugal pump of industrial machinery sealing - Google Patents
A kind of centrifugal pump of industrial machinery sealing Download PDFInfo
- Publication number
- CN109780446A CN109780446A CN201711116868.8A CN201711116868A CN109780446A CN 109780446 A CN109780446 A CN 109780446A CN 201711116868 A CN201711116868 A CN 201711116868A CN 109780446 A CN109780446 A CN 109780446A
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- CN
- China
- Prior art keywords
- pump
- centrifugal pump
- centrifugal
- valve
- circulation technology
- 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.)
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Abstract
A kind of centrifugal pump of industrial machinery sealing, it is related to the field of a kind of pair of industrial centrifugal pump mechanical sealing running protection.It installs circulation technology pipeline (3) between pump inlet pipe (4) in centrifugal pump (1) pump discharge pipe (2), circulation technology pipeline (3) one end installation site is behind pump inlet valve (2), and other end installation site is before pump discharge valve (7).Installation and adjustment valve (2) on circulation technology pipeline (3).It extends the practical period of mechanical face seals of centrifugal pumps by the stability of raising centrifugal pump inlet condition.
Description
Technical field:
The present invention relates to a kind of centrifugal pumps of industrial machinery sealing.
Background technique:
The conveying of processing medium mostly uses centrifugal pump pressurized delivered mode, the cycle of operation of centrifugal pump direct shadow in commercial plant
It rings to the stable of device.Pump shaft of centrifugal pump and the sealing between the pump housing use mechanical seal, and mechanical seal was being run
More demanding to the job stability of centrifugal pump in journey, slightly fluctuation will cause mechanical seal temperature height, temperature in very short time
Drop is not gone down will result in mechanical seal and is burnt out.Centrifugal pump job stability depends on the stability of pump inlet medium, but in work
Due to being influenced by process conditions in industry device, the component and pressure of centrifugal pump inlet medium can change, to centrifugal pump
Operation stability have a direct impact, directly the mechanical seal of centrifugal pump is damaged.Summary of the invention: the purpose of the present invention is
A kind of centrifugal pump of industrial machinery sealing is provided, it is steady come the operation for solving pump by changing centrifugal pump inlet operation process condition
It is qualitative, the cycle of operation of prolonged mechanical sealing.In order to solve the problems existing in background technology, present invention solution is using following
Technical solution: it installs a circulation technology pipeline in outlet of centrifugal pump pipe to inlet tube, because pump discharge pressure is greater than pump inlet pressure
Power, so medium can smoothly enter into pump inlet pipe in centrifugal pump operational process in outlet.Pump discharge medium returns to pump
The flow of import is by the control valve control on circulation technology pipeline.Normally take the 1/10 of centrifugation total pump flow.Circulation technology
The installation site at pipeline both ends must be behind the pump inlet valve and before pump discharge valve.Present invention tool is following beneficial to effect
Fruit:
This practical technology extends the practical of mechanical face seals of centrifugal pumps by the stability of raising centrifugal pump inlet process conditions
Period.Mechanical face seals of centrifugal pumps running protection features simple and practical process.
Detailed description of the invention:
Fig. 1 is process flow chart of the invention.
Specific embodiment:
With reference to Fig. 1, in 1 pump discharge pipe 2 of centrifugal pump to installation circulation technology pipeline 3, circulation technology pipe between pump inlet pipe 4
3 one end installation site of line is behind pump inlet valve 6, and other end installation site is before pump discharge valve 7.Circulation
Installation and adjustment valve 5 on process pipelines 3.
Claims (2)
1. a kind of centrifugal pump of industrial machinery sealing, is characterized in that it includes centrifugal pump (1), pump discharge pipe (2), circulation technology pipe
Line (3), pump inlet pipe (4), control valve (5), pump inlet valve (6), pump discharge valve (7).
2. the centrifugal pump of a kind of industrial machinery sealing according to claim 1, it is characterised in that centrifugal pump (1) pump discharge
It manages (2) and circulation technology pipeline (3) is installed between pump inlet pipe (4), circulation technology pipeline (3) one end installation site is pumping
Behind imported valve (2), other end installation site is before pump discharge valve (7)；Circulation technology pipeline is pacified on (3)
It fills control valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116868.8A CN109780446A (en) | 2017-11-13 | 2017-11-13 | A kind of centrifugal pump of industrial machinery sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116868.8A CN109780446A (en) | 2017-11-13 | 2017-11-13 | A kind of centrifugal pump of industrial machinery sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780446A true CN109780446A (en) | 2019-05-21 |
Family
ID=66494699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711116868.8A Pending CN109780446A (en) | 2017-11-13 | 2017-11-13 | A kind of centrifugal pump of industrial machinery sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780446A (en) |
-
2017
- 2017-11-13 CN CN201711116868.8A patent/CN109780446A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |