CN107288894A - Solve a kind of scheme and device that pump is unable to low liquid level self-priming - Google Patents
Solve a kind of scheme and device that pump is unable to low liquid level self-priming Download PDFInfo
- Publication number
- CN107288894A CN107288894A CN201610240802.9A CN201610240802A CN107288894A CN 107288894 A CN107288894 A CN 107288894A CN 201610240802 A CN201610240802 A CN 201610240802A CN 107288894 A CN107288894 A CN 107288894A
- Authority
- CN
- China
- Prior art keywords
- pump
- liquid level
- liquid
- blower fan
- priming
- 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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
Abstract
Solve a kind of scheme and device that pump is unable to low liquid level self-priming.Liquid level can be lifted in the startup and operation of pump；In environmental protection, petrochemical industry, it is possible to resolve low liquid level, sump oil, sewage and the waste liquid of shallow liquid level, mucus, the recovery of corrosive liquid, re-injection and transhipment.It can realize that quick start is put out a fire in fire-fighting.
Description
Technical field：
First, in industry, agricultural production life, the startup and operation of most of pump.
2nd, in environmental protection, petrochemical industry, sump oil, sewage, recovery, re-injection, transhipment containing debris residual night, mucus, chemical industry corrosive liquid and the emergent liquid liquid for revealing liquid etc..
3rd, mobile fire-fighting is realized in the place that can be used in has water source.
Background technology：
First, it is to use following several ways mostly that low liquid level, which starts pump, in production at present, life：
1st, from self priming pump, though self-priming can be realized partly, the requirement to medium and pump is too high.
2nd, install water suction bottom valve additional, fill pump, trivial operations are high to operating personnel and working condition requirement.
3rd, vavuum pump is installed additional, cost is high, and operation difficulty is big.
2nd, in environmental protection, petrochemical industry：Due to the complicated (being probably sump oil, sewage, the liquid liquid containing debris residual night, mucus, chemical industry corrosive liquid and emergent leakage liquid etc.) of liquid；And possible liquid level is low, possible liquid level is shallow, liquid is not reclaimed；Or can not transport and (can not be transported in other equipment) after reclaiming, or re-injection ductwork pressure is high (the residual night re-injection of petroleum well workover), it is impossible to re-injection.
3rd, fire-fighting fire extinguishing, input fire extinguishing immediately can be realized if any pond.
The content of the invention：
This patent largely solves the deficiency of background technology.The ingenious pull of vacuum that make use of blower fan, is increased to liquid level more than the suction inlet of pump (and controlling within available NPSH of pump) in a closed space, enables pump normal or continuously works.
Brief description of the drawings：
Fig. 1 is the schematic diagram of imbibition and re-injection
Fig. 2 is the schematic diagram of imbibition and transhipment
Fig. 3 is the schematic diagram for making the low liquid level of centrifugal pump normally start
1, liquid level gauge 2, suction inlet 3, screen pack 4, sewage draining exit 5, confined space 6, pump 7, check valve 8, outlet 9, the fan induced draught mouthful of blower fan exhaust outlet 10 in figure
Embodiment：
First, liquid is under blower negative pressure effect, by flexible pipe link through 2 suction inlets, into 5 confined spaces, (can be by 3 filter screen filtrations if any impurity), liquid level in 5 confined spaces can increase to over the inlet tube of pump, and liquid can fill the inlet/outlet pipe of the pump housing and 6 pumps under gravity.Pump can startup optimization.If blower fan can realize lasting offer negative pressure and to the certain height (but the negative pressure in 5 confined spaces is less than the available NPSH of pump) of Pump Suction Nozzle is exceeded, pump is can continuous firing！It is the liquid that can obtain obtaining different displacements and pressure because being equipped with pumpage and pressure difference in 8 outlets such as Fig. 1, Fig. 2.
2nd, in the startup and operation of pump, blower fan is started, the negative pressure of blower fan can increase to over Pump Suction Nozzle from 6 pumps below 7 check valves, 2 suction lines, 5 confined spaces generation vacuum, liquid in the presence of vacuum, and pump can startup optimization.Such as Fig. 3.
Claims (4)
1. in confined space, using the pull of vacuum of blower fan, improve liquid level and exceed pump intake, make the vacuum cavitations of blower fan in effective cavitation less than pump
Within surplus.Enable a kind of device that pump continuously works.
2. in confined space, using the pull of vacuum of blower fan, raising liquid level, more than the entrance of pump, make the workable device of pump.
3. this patent is being applied in combination for blower fan and pump.
4. in confined space, using the pull of vacuum of blower fan, liquid (or scattered liquid) is entered confined space, and the vacuum cavitations of blower fan is existed
Within the available NPSH of pump, make pump work and a kind of device of withdrawal liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240802.9A CN107288894A (en) | 2016-04-13 | 2016-04-13 | Solve a kind of scheme and device that pump is unable to low liquid level self-priming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240802.9A CN107288894A (en) | 2016-04-13 | 2016-04-13 | Solve a kind of scheme and device that pump is unable to low liquid level self-priming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288894A true CN107288894A (en) | 2017-10-24 |
Family
ID=60095605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610240802.9A Pending CN107288894A (en) | 2016-04-13 | 2016-04-13 | Solve a kind of scheme and device that pump is unable to low liquid level self-priming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393447A (en) * | 2020-11-02 | 2021-02-23 | 浙江中控太阳能技术有限公司 | Solar energy light and heat power station fused salt storage device, storage system and light and heat power station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9123087D0 (en) * | 1991-01-16 | 1991-12-18 | Comerford Hugh | Pump priming apparatus |
| CN2789466Y (en) * | 2005-01-10 | 2006-06-21 | 沈阳市耐蚀合金泵厂 | Vacuum exhaust and suction pump |
| CN202370856U (en) * | 2011-12-09 | 2012-08-08 | 辽宁格瑞特泵业有限公司 | Novel diaphragm type self-sucking pump |
| CN203009408U (en) * | 2012-11-07 | 2013-06-19 | 云南大红山管道有限公司 | Concentrated pool underflow pump inlet filter device |
| CN203394772U (en) * | 2013-07-05 | 2014-01-15 | 辽宁格瑞特泵业有限公司 | Light sump oil anti-explosion self-priming pump |
| CN103541910A (en) * | 2012-07-12 | 2014-01-29 | 赵旭阳 | Self-sucking pump |
-
2016
- 2016-04-13 CN CN201610240802.9A patent/CN107288894A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9123087D0 (en) * | 1991-01-16 | 1991-12-18 | Comerford Hugh | Pump priming apparatus |
| CN2789466Y (en) * | 2005-01-10 | 2006-06-21 | 沈阳市耐蚀合金泵厂 | Vacuum exhaust and suction pump |
| CN202370856U (en) * | 2011-12-09 | 2012-08-08 | 辽宁格瑞特泵业有限公司 | Novel diaphragm type self-sucking pump |
| CN103541910A (en) * | 2012-07-12 | 2014-01-29 | 赵旭阳 | Self-sucking pump |
| CN203009408U (en) * | 2012-11-07 | 2013-06-19 | 云南大红山管道有限公司 | Concentrated pool underflow pump inlet filter device |
| CN203394772U (en) * | 2013-07-05 | 2014-01-15 | 辽宁格瑞特泵业有限公司 | Light sump oil anti-explosion self-priming pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393447A (en) * | 2020-11-02 | 2021-02-23 | 浙江中控太阳能技术有限公司 | Solar energy light and heat power station fused salt storage device, storage system and light and heat power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20171024 |