CN104863900A - Process for mechanical sealing running protection of industrial centrifugal pump - Google Patents
Process for mechanical sealing running protection of industrial centrifugal pump Download PDFInfo
- Publication number
- CN104863900A CN104863900A CN201510302621.XA CN201510302621A CN104863900A CN 104863900 A CN104863900 A CN 104863900A CN 201510302621 A CN201510302621 A CN 201510302621A CN 104863900 A CN104863900 A CN 104863900A
- Authority
- CN
- China
- Prior art keywords
- pump
- centrifugal pump
- mechanical sealing
- valve
- centrifugal
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a process for mechanical sealing running protection of an industrial centrifugal pump and relates to the technical field of centrifugal pump protection. A circulating process pipeline (3) is installed between a pump outlet pipe (2) and a pump inlet pipe (4) of a centrifugal pump (1). The installing position of one end of the circulating process pipeline (3) is located at the rear of a pump inlet valve (2), the installing position of the other end of the circulating process pipeline (3) is located in the front of a pump outlet valve (7), and an adjusting valve (2) is installed on the circulating process pipeline (3). The mechanical sealing service cycle of the centrifugal pump is prolonged by improving the stability of the centrifugal pump inlet conditions.
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 |
|---|---|---|---|
| CN201510302621.XA CN104863900A (en) | 2015-06-05 | 2015-06-05 | Process for mechanical sealing running protection of industrial centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302621.XA CN104863900A (en) | 2015-06-05 | 2015-06-05 | Process for mechanical sealing running protection of industrial centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863900A true CN104863900A (en) | 2015-08-26 |
Family
ID=53909977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302621.XA Pending CN104863900A (en) | 2015-06-05 | 2015-06-05 | Process for mechanical sealing running protection of industrial centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781955A (en) * | 2016-05-23 | 2016-07-20 | 肥西县鑫山机械厂 | Centrifugal pump with industrial mechanical seal |
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 |
| 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 |
| 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 |
-
2015
- 2015-06-05 CN CN201510302621.XA patent/CN104863900A/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 |
| 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 |
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781955A (en) * | 2016-05-23 | 2016-07-20 | 肥西县鑫山机械厂 | Centrifugal pump with industrial mechanical seal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204511984U (en) | A kind of centrifugal pump of industrial machinery sealing | |
| CN105090045A (en) | Centrifugal pump with industrial mechanical seal | |
| CN104879321A (en) | Mechanically sealed industrial centrifugal pump | |
| CN105090087A (en) | Operation protection technology for mechanical seal of industrial centrifugal pump | |
| MX2014001013A (en) | Centrifugal impeller and turbomachine. | |
| CN110762051A (en) | Surging prevention structure of magnetic suspension air compressor | |
| CN105090094A (en) | Device for improving mechanical sealing of industrial centrifugal pump machine | |
| CN105781955A (en) | Centrifugal pump with industrial mechanical seal | |
| CN211230997U (en) | Surging prevention structure of magnetic suspension air compressor | |
| CN210686415U (en) | Centrifugal water pump sealing ring | |
| CN104863900A (en) | Process for mechanical sealing running protection of industrial centrifugal pump | |
| CN105889118A (en) | Mechanically-sealed industrial centrifugal pump | |
| CN205315339U (en) | Multistage spiral seal structure | |
| CN105889119A (en) | Mechanically-sealed operation protection process of industrial centrifugal pump | |
| CN203584874U (en) | Multiple-stage centrifugal pump effectively reducing mechanical seal balance chamber flow loss | |
| CN106050685A (en) | Industrial centrifugal pump adopting mechanical seal | |
| CN106089749A (en) | The centrifugal pump that a kind of industrial machinery seals | |
| CN201963590U (en) | Hand-operated adjustment and compensation device for centrifugal pump impeller seal | |
| CN106089751A (en) | A kind of industrial centrifugal pump mechanical sealing running protection technique | |
| CN106089748A (en) | A kind of industrial centrifugal pump mechanical sealing running protection technique | |
| CN203516210U (en) | Water-cooling heat-dissipating protection system of shaft seal of centrifugal pump | |
| CN103591054A (en) | Shaft-seal water-cooling heat dissipation protecting system of centrifugal pump | |
| CN104500435A (en) | Automatic adjusting device and method of water-feeding pump for labyrinth sealed boiler | |
| CN204327571U (en) | A kind of Coal Chemical Industry pump sealing pressure relief device | |
| CN103307020A (en) | Two-way floating type mouth-ring sealing device of centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20150826 |
|
| WD01 | Invention patent application deemed withdrawn after publication |