CN106089752A - A kind of device improving industrial centrifugal pump mechanical sealing - Google Patents
A kind of device improving industrial centrifugal pump mechanical sealing Download PDFInfo
- Publication number
- CN106089752A CN106089752A CN201610492808.5A CN201610492808A CN106089752A CN 106089752 A CN106089752 A CN 106089752A CN 201610492808 A CN201610492808 A CN 201610492808A CN 106089752 A CN106089752 A CN 106089752A
- Authority
- CN
- China
- Prior art keywords
- pump
- circulation technology
- technology pipeline
- control valve
- 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.)
- Pending
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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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of device improving industrial centrifugal pump mechanical sealing, it includes circulation technology pipeline and control valve, after pump inlet valve, other end installation site installs circulation technology pipeline before pump discharge valve, control valve is installed on circulation technology pipeline, by controlling the control valve on circulation technology pipeline, regulation outlet of centrifugal pump tube portion processing medium returns to the flow of inlet tube, the flow being back to pump inlet medium is changed, the import pressure medium of pump is unlikely to change suddenly, and then improve the import dielectric stability of pump, improve mechanical face seals of centrifugal pumps.
Description
Technical field
The present invention relates to a kind of device improving industrial centrifugal pump mechanical sealing.
Background technology
Typically, centrifugal pump many employings mechanical seal, mechanical seal is the key of centrifugal pump cycle of operation length.Existing enterprise
The no-leakage pumps such as sparetime university's part introduces magnetic drive pump from abroad, canned motor pump improve the mechanical seal of pump, but owing to technology does not becomes
Ripe, poor reliability, expensive, the shortcoming such as maintenance difficult, it is impossible to be widely used.Mechanical seal in running to from
The job stability of heart pump requires higher, and centrifugal pump job stability depends on the stability of pump inlet medium, at commercial plant
In affected by process conditions, the component of centrifugal pump inlet medium and pressure can change, and the operation affecting centrifugal pump is steady
Qualitative, destroy its mechanical seal.And a kind of device improving mechanical face seals of centrifugal pumps is so that these problems obtain
Well solve.
Summary of the invention
It is an object of the invention to provide a kind of centrifugal pump inlet process conditions that change to solve the operation stability of pump, improve
The mechanical seal of centrifugal pump.
For achieving the above object, the present invention takes techniques below scheme: a kind of device improving mechanical face seals of centrifugal pumps,
It includes circulation technology pipeline and control valve, the installation site at circulation technology pipeline two ends after pump inlet valve with pump out
Before mouth valve, control valve is arranged on circulation technology pipeline；When liquid enters pump inlet pipe, and the process through centrifugal pump makes
Its excavationg pump outlet, pump discharge pressure is more than pump inlet pressure, and in outlet, medium enters circulation at centrifugal pump running
In process pipelines, by controlling the control valve on circulation technology pipeline so that the flow being back to pump inlet medium becomes
Changing, the import pressure medium of pump is unlikely to change suddenly, 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 machine of centrifugal pump
Tool sealing, extends the cycle of operation of centrifugal pump.This method is simple, it is easy to operation.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is assembly of the invention sketch.
.1, centrifugal pump in Fig. 1；2, pump discharge pipe；3, circulation technology pipeline；4, pump inlet pipe；5, control valve；6, pump enters
Mouth valve；7, pump discharge valve.
Detailed description of the invention
In FIG, a kind of device improving mechanical face seals of centrifugal pumps, it includes circulation technology pipeline and control valve,
Circulation technology pipeline 3 is installed between centrifugal pump 1 pump discharge pipe 2 to pump inlet pipe 4, circulation technology pipeline 3 is installed regulation valve
Door 5 circulation technology pipeline 3 one end installation sites are after pump inlet valve 6, and other end installation site is at pump discharge valve 7
Above.Control valve 5 is installed on circulation technology pipeline 3.When liquid enters pump inlet pipe, and the process through centrifugal pump makes it discharge
Pump discharge pipe, pump discharge pressure is more than pump inlet pressure, and in outlet, medium enters circulation technology pipe at centrifugal pump running
In line, by controlling the control valve on circulation technology pipeline so that the flow being back to pump inlet medium changes, pump
Import pressure medium is unlikely to change suddenly, 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, control valve；It is characterized in that:
The installation site at circulation technology pipeline two ends must be after pump inlet valve with pump discharge valve before, control valve install
On circulation technology pipeline.
Circulation technology pipeline the most according to claim 1, is characterized in that: adjusted by the control valve on circulation technology pipeline
Joint is back to the flow of pump inlet pipe so that the rate-of flow being back to pump inlet pipe changes, and stablizes the import medium of pump
Pressure, improves the mechanical seal of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492808.5A CN106089752A (en) | 2016-06-30 | 2016-06-30 | A kind of device improving industrial centrifugal pump mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492808.5A CN106089752A (en) | 2016-06-30 | 2016-06-30 | A kind of device improving industrial centrifugal pump mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089752A true CN106089752A (en) | 2016-11-09 |
Family
ID=57215420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610492808.5A Pending CN106089752A (en) | 2016-06-30 | 2016-06-30 | A kind of device improving industrial centrifugal pump mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089752A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04234579A (en) * | 1990-08-21 | 1992-08-24 | Itt Flygt Ab | Method and device for automatic circulation in waste liquid pump station |
| US6250876B1 (en) * | 1997-05-27 | 2001-06-26 | Apv Fluid Handling Horsens A/S | Mechanical seal with flushing arrangement |
| 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 |
| 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 |
| 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 |
| CN105781955A (en) * | 2016-05-23 | 2016-07-20 | 肥西县鑫山机械厂 | Centrifugal pump with industrial mechanical seal |
-
2016
- 2016-06-30 CN CN201610492808.5A patent/CN106089752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04234579A (en) * | 1990-08-21 | 1992-08-24 | Itt Flygt Ab | Method and device for automatic circulation in waste liquid pump station |
| US6250876B1 (en) * | 1997-05-27 | 2001-06-26 | Apv Fluid Handling Horsens A/S | Mechanical seal with flushing arrangement |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |