CN104863864A - Device for improving mechanical sealing performance of industrial centrifugal pump - Google Patents
Device for improving mechanical sealing performance of industrial centrifugal pump Download PDFInfo
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- CN104863864A CN104863864A CN201510273601.4A CN201510273601A CN104863864A CN 104863864 A CN104863864 A CN 104863864A CN 201510273601 A CN201510273601 A CN 201510273601A CN 104863864 A CN104863864 A CN 104863864A
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- pump
- centrifugal pump
- pump inlet
- valve
- mechanical sealing
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Abstract
The invention discloses a device for improving the mechanical sealing performance of an industrial centrifugal pump. The device comprises a circulating process pipe and an adjustment valve. The circulating process pipe is installed behind a pump inlet valve, wherein the other end of the circulating process pipe is installed in front of a pump outlet valve. The adjustment valve is installed on the circulating process pipe. As the adjustment valve on the circulating process pipe is controlled, the flow of process media, returning to an inlet pipe, at the portion of a centrifugal pump outlet pipe is adjusted, the flow of the media flowing back to a pump inlet is changed accordingly, the pressure of the media of the pump inlet can not be suddenly changed, the stability of the media of the pump inlet is further improved, and the mechanical sealing performance of the centrifugal pump is improved.
Description
Art
The present invention relates to a kind of device improving industrial centrifugal pump mechanical sealing
Background technique
Generally, centrifugal pump many employings mechanical seal, mechanical seal is the key of centrifugal pump operation period length.Existing enterprise major part from introducing magnetic drive pump abroad, the no-leakage pumps such as canned motorpump improve the mechanical seal of pump, but due to technology immature, poor reliability, expensive, the shortcomings such as maintenance difficult, cannot be widely used.Mechanical seal requires higher to the working stability of centrifugal pump in running, centrifugal pump working stability depends on the stability of pump inlet medium, the impact of process conditions is subject in commercial plant, the component of centrifugal pump inlet medium and pressure can change, affect the operation stability of centrifugal pump, destroy its mechanical seal.And a kind of device improving mechanical face seals of centrifugal pumps can make these problems be well solved.
Summary of the invention
The object of this invention is to provide and a kind ofly change the operation stability that centrifugal pump inlet process conditions solve pump, improve the mechanical seal of centrifugal pump.
For achieving the above object, the present invention takes following technological scheme: a kind of device improving mechanical face seals of centrifugal pumps, it comprises circulation technology pipeline and regulating valve, the mounting point at circulation technology pipeline two ends after pump inlet valve with pump discharge valve before, regulating valve is arranged on circulation technology pipeline; When liquid enters pump inlet pipe, process through centrifugal pump makes its excavationg pump outer pipe, pump discharge pressure is greater than pump inlet pressure, in outer pipe, medium enters in circulation technology pipeline at centrifugal pump running, by the regulating valve on controlled circulation process pipelines, the flow being back to pump inlet medium is changed, and the import pressure medium of pump is unlikely to unexpected change, and then improves the import dielectric stability of pump.
The invention has the beneficial effects as follows: the present invention controls the process conditions of centrifugal pump inlet medium, improve the mechanical seal of centrifugal pump, extend the operation period of centrifugal pump.This method is simple, is easy to operation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is device sketch of the present invention.
.1, centrifugal pump in Fig. 1.2, pump discharge pipe.3, circulation technology pipeline.4, pump inlet pipe.5, regulating valve.6, pump inlet valve.7, pump discharge valve.
Embodiment
In FIG, a kind of device improving mechanical face seals of centrifugal pumps, it comprises circulation technology pipeline and regulating valve, between centrifugal pump 1 pump discharge pipe 2 to pump inlet pipe 4, circulation technology pipeline 3 is installed, circulation technology pipeline 3 is installed mounting point, regulating valve 5 circulation technology pipeline 3 one end after pump inlet valve 6, the other end mounting point is before pump discharge valve 7.Circulation technology pipeline 3 is installed regulating valve 5.When liquid enters pump inlet pipe, process through centrifugal pump makes its excavationg pump outer pipe, pump discharge pressure is greater than pump inlet pressure, in outer pipe, medium enters in circulation technology pipeline at centrifugal pump running, by the regulating valve on controlled circulation process pipelines, the flow being back to pump inlet medium is changed, and the import pressure medium of pump is unlikely to unexpected change, and then improves the import dielectric stability of pump.
Claims (2)
1. improve a device for industrial centrifugal pump mechanical sealing, comprise: circulation technology pipeline, regulating valve; It is characterized in that: the mounting point at circulation technology pipeline two ends must be after pump inlet valve with pump discharge valve before, regulating valve is arranged on circulation technology pipeline.
2. circulation technology pipeline according to claim 1, it is characterized in that: regulated the flow being back to pump inlet pipe by the regulating valve on circulation technology pipeline, the rate-of flow being back to pump inlet pipe is changed, stablizes the import pressure medium of pump, improve the mechanical seal of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273601.4A CN104863864A (en) | 2015-05-26 | 2015-05-26 | Device for improving mechanical sealing performance of industrial centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273601.4A CN104863864A (en) | 2015-05-26 | 2015-05-26 | Device for improving mechanical sealing performance of industrial centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863864A true CN104863864A (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510273601.4A Pending CN104863864A (en) | 2015-05-26 | 2015-05-26 | Device for improving mechanical sealing performance of industrial centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN104863864A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB886376A (en) * | 1957-12-12 | 1962-01-03 | Laing Nikolaus | Improvements in or relating to heat exchangers |
| CN1093148A (en) * | 1993-04-01 | 1994-10-05 | 三隆过滤器工业株式会社 | Circulation means to the rotating shaft seal portion cooling water supply of pump |
| CN102840140A (en) * | 2012-08-16 | 2012-12-26 | 合肥通用机械研究院 | Outer ring type efficient starting system for self-priming pump and starting method thereof |
| CN203500090U (en) * | 2013-09-27 | 2014-03-26 | 山西晋丰煤化工有限责任公司 | Auxiliary start device of circulating water pump |
| CN203879753U (en) * | 2014-05-13 | 2014-10-15 | 辽宁工业大学 | Self-suction device for jet flow out of centrifugal pump |
| CN204511984U (en) * | 2015-03-05 | 2015-07-29 | 安徽瀚洋节能科技有限公司 | A kind of centrifugal pump of industrial machinery sealing |
| CN105090045A (en) * | 2014-12-02 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Centrifugal pump with industrial mechanical seal |
| CN105090094A (en) * | 2014-12-02 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Device for improving mechanical sealing of industrial centrifugal pump machine |
-
2015
- 2015-05-26 CN CN201510273601.4A patent/CN104863864A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB886376A (en) * | 1957-12-12 | 1962-01-03 | Laing Nikolaus | Improvements in or relating to heat exchangers |
| CN1093148A (en) * | 1993-04-01 | 1994-10-05 | 三隆过滤器工业株式会社 | Circulation means to the rotating shaft seal portion cooling water supply of pump |
| CN102840140A (en) * | 2012-08-16 | 2012-12-26 | 合肥通用机械研究院 | Outer ring type efficient starting system for self-priming pump and starting method thereof |
| CN203500090U (en) * | 2013-09-27 | 2014-03-26 | 山西晋丰煤化工有限责任公司 | Auxiliary start device of circulating water pump |
| CN203879753U (en) * | 2014-05-13 | 2014-10-15 | 辽宁工业大学 | Self-suction device for jet flow out of centrifugal pump |
| CN105090045A (en) * | 2014-12-02 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Centrifugal pump with industrial mechanical seal |
| CN105090094A (en) * | 2014-12-02 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Device for improving mechanical sealing of industrial centrifugal pump machine |
| CN204511984U (en) * | 2015-03-05 | 2015-07-29 | 安徽瀚洋节能科技有限公司 | A kind of centrifugal pump of industrial machinery sealing |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |