CN106089752A - A kind of device improving industrial centrifugal pump mechanical sealing - Google Patents

A kind of device improving industrial centrifugal pump mechanical sealing Download PDF

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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
Application number
CN201610492808.5A
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Chinese (zh)
Inventor
魏芳芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Tiannuo Energy Technology Co Ltd
Original Assignee
Hefei Tiannuo Energy Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Tiannuo Energy Technology Co Ltd filed Critical Hefei Tiannuo Energy Technology Co Ltd
Priority to CN201610492808.5A priority Critical patent/CN106089752A/en
Publication of CN106089752A publication Critical patent/CN106089752A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005Control, 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

A kind of device improving industrial centrifugal pump mechanical sealing
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.
CN201610492808.5A 2016-06-30 2016-06-30 A kind of device improving industrial centrifugal pump mechanical sealing Pending CN106089752A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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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Application publication date: 20161109