CN105090087A - Operation protection technology for mechanical seal of industrial centrifugal pump - Google Patents
Operation protection technology for mechanical seal of industrial centrifugal pump Download PDFInfo
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- CN105090087A CN105090087A CN201410216986.6A CN201410216986A CN105090087A CN 105090087 A CN105090087 A CN 105090087A CN 201410216986 A CN201410216986 A CN 201410216986A CN 105090087 A CN105090087 A CN 105090087A
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- pump
- centrifugal pump
- mechanical seal
- centrifugal
- valve
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Abstract
The invention discloses an operation protection technology for a mechanical seal of an industrial centrifugal pump, and relates to the technical field of protection of centrifugal pumps. A cyclic technological pipeline (3) is installed between a pump outlet pipe (2) and a pump inlet pipe (4) of the centrifugal pump (1). One end of the cyclic technological pipeline (3) is installed behind a pump inlet valve (2), and the other end of the cyclic technological pipeline (3) is installed in the front of a pump outlet valve (7). An adjusting valve (2) is installed on the cyclic technological pipeline (3). According to the technology, the stability of pump inlet conditions is improved, and the practical period of the mechanical seal of the centrifugal pump is prolonged.
Description
Technical field:
The present invention relates to centrifugal pump resist technology field, be specifically related to a kind of industrial centrifugal pump mechanical sealing running protection technique.
Background technique:
In commercial plant, the conveying of processing medium adopts centrifugal pump pressurized delivered mode more, and the operation period of centrifugal pump directly has influence on the stable of device.Pump shaft of centrifugal pump and and the pump housing between sealing adopt mechanical seal, mechanical seal requires higher to the working stability of centrifugal pump in running, slightly fluctuation can cause mechanical seal temperature high, and in very short time, temperature can not be fallen and mechanical seal will be caused to burn out.Centrifugal pump working stability depends on the stability of pump inlet medium, but owing to being subject to the impact of process conditions in commercial plant, the component of centrifugal pump inlet medium and pressure can change, and have a direct impact the operation stability of centrifugal pump, directly cause damage to the mechanical seal of centrifugal pump.
Summary of the invention:
The object of this invention is to provide a kind of industrial centrifugal pump mechanical sealing running protection technique, it solves the operation stability of pump by changing centrifugal pump inlet operation process condition, the operation period of prolonged mechanical sealing.
In order to solve the problem existing for background technique, the present invention is by the following technical solutions: it installs a circulation technology pipeline at outlet of centrifugal pump pipe to inlet tube, because pump discharge pressure is greater than pump inlet pressure, so medium can enter smoothly in pump inlet pipe in centrifugal pump running in outer pipe.The flow that pump discharge medium gets back to pump inlet relies on the regulating valve on circulation technology pipeline to control, and normally gets 1/10 of centrifugal pump total discharge.The mounting point at circulation technology pipeline two ends must be after pump inlet valve with pump discharge valve before.
The present invention has following beneficial effect:
1, the present invention is by improving the stability of centrifugal pump inlet process conditions, extends the practical cycle of mechanical face seals of centrifugal pumps;
2, mechanical face seals of centrifugal pumps running protection features simple and practical process.
Accompanying drawing illustrates:
Fig. 1 is present invention process flow chart.
Embodiment:
With reference to figure 1, between centrifugal pump 1 pump discharge pipe 2 to pump inlet pipe 4, circulation technology pipeline 3 is installed, mounting point, circulation technology pipeline 3 one end is after pump inlet valve 6, and regulating valve 5, before pump discharge valve 7, circulation technology pipeline 3 is installed in the other end mounting point.Because pump discharge pressure is greater than pump inlet pressure, so medium can enter smoothly in pump inlet pipe in centrifugal pump running in outer pipe.
Claims (2)
1. an industrial centrifugal pump mechanical sealing running protection technique, is characterized in that it comprises centrifugal pump (1), pump discharge pipe (2), circulation technology pipeline (3), pump inlet pipe (4), regulating valve (5), pump inlet valve (6) and pump discharge valve (7).
2. the centrifugal pump of a kind of industrial machinery sealing according to claim 1, it is characterized in that, between centrifugal pump (1) pump discharge pipe (2) to pump inlet pipe (4), circulation technology pipeline (3) is installed, circulation technology pipeline (3) mounting point, one end is after pump inlet valve (2), and the other end mounting point is before pump discharge valve (7).Circulation technology pipeline (3) is installed regulating valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216986.6A CN105090087A (en) | 2014-05-21 | 2014-05-21 | Operation protection technology for mechanical seal of industrial centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216986.6A CN105090087A (en) | 2014-05-21 | 2014-05-21 | Operation protection technology for mechanical seal of industrial centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090087A true CN105090087A (en) | 2015-11-25 |
Family
ID=54571208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410216986.6A Pending CN105090087A (en) | 2014-05-21 | 2014-05-21 | Operation protection technology for mechanical seal of industrial centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090087A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879321A (en) * | 2015-05-31 | 2015-09-02 | 安徽瀚洋节能科技有限公司 | Mechanically sealed industrial centrifugal pump |
| CN105781955A (en) * | 2016-05-23 | 2016-07-20 | 肥西县鑫山机械厂 | Centrifugal pump with industrial mechanical seal |
| CN106089750A (en) * | 2016-06-24 | 2016-11-09 | 合肥欧克斯新型建材有限公司 | A kind of device improving industrial centrifugal pump mechanical sealing |
| CN106089748A (en) * | 2016-06-24 | 2016-11-09 | 合肥欧克斯新型建材有限公司 | A kind of industrial centrifugal pump mechanical sealing running protection technique |
-
2014
- 2014-05-21 CN CN201410216986.6A patent/CN105090087A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879321A (en) * | 2015-05-31 | 2015-09-02 | 安徽瀚洋节能科技有限公司 | Mechanically sealed industrial centrifugal pump |
| CN105781955A (en) * | 2016-05-23 | 2016-07-20 | 肥西县鑫山机械厂 | Centrifugal pump with industrial mechanical seal |
| CN106089750A (en) * | 2016-06-24 | 2016-11-09 | 合肥欧克斯新型建材有限公司 | A kind of device improving industrial centrifugal pump mechanical sealing |
| CN106089748A (en) * | 2016-06-24 | 2016-11-09 | 合肥欧克斯新型建材有限公司 | A kind of industrial centrifugal pump mechanical sealing running protection technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |