CN201363282Y - Evacuating device of centrifugal water pump - Google Patents
Evacuating device of centrifugal water pump Download PDFInfo
- Publication number
- CN201363282Y CN201363282Y CNU2009200371063U CN200920037106U CN201363282Y CN 201363282 Y CN201363282 Y CN 201363282Y CN U2009200371063 U CNU2009200371063 U CN U2009200371063U CN 200920037106 U CN200920037106 U CN 200920037106U CN 201363282 Y CN201363282 Y CN 201363282Y
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- vacuum
- water pump
- centrifugal water
- pipeline
- pump
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Abstract
The utility model relates to an evacuating device of a centrifugal water pump, which mainly solves the technical problem that the evacuating system of the prior centrifugal water pump can not maintain vacuum when the electricity is cut off. The utility model adopts the technical scheme as follows: the evacuating device of the centrifugal water pump is characterized in that a pipeline is connected and a water flow adjusting valve is arranged in the outlet pipeline of the centrifugal water pump; the water flow adjusting valve is connected with a jet-type air extractor; the jet-type air extractor is arranged above a reservoir; a gas storage tank provided with a vacuum gauge is arranged on a pipeline between the centrifugal water pump and the air extractor; the vacuum suction opening of the jet-type air extractor is connected with the gas storage tank; a suction adjusting valve is arranged in the middle of the pipeline; and the gas storage tank is further connected with a vacuum pump via a vacuum outlet adjusting valve. The utility model is mainly used for evacuation of a centrifugal water pump.
Description
Technical field:
The utility model relates to a kind of vacuum pumping device of centrifugal water pump.
Background technique:
At the industrial water pump of widely using, the air in it needs in advance with the pump housing when work in the fills with water or the pump housing is extracted out and is formed vacuum, otherwise can't extract water out.So not only result in hand cramps, but also waste time and energy to the operator.In addition, large centrifugal water pump is the capital equipment of circulation, and its main effect is to provide cooling water to turbine condenser, taking away the heat in the vapour condenser, with the steam discharge cooling of steam turbine and condense into water, guarantees the high vacuum of vapour condenser.Cooling water as steam supply turbine vapour condenser interrupts; to cause condenser vacuum to disappear; steam turbine is forced to stop transport; for this reason; be provided with interconnected protection loop between process pump and stand by pump, when the process pump fault trip, electrical interconnection protection loop will start stand by pump automatically; guaranteeing the normal operation of cooling water system, is to guarantee to realize interconnected prerequisite and keep the interior certain vacuum of the stand by pump pump housing.At present, generally adopt vacuum pump to keep vacuum, in case have a power failure or vacuum pump failure, stand by pump will lose standby functions, influence the safe operation of whole circulation cooling water system.
The model utility content:
The utility model is the technological improvement to the water pump pumped vacuum systems, its purpose with regard to provide a kind of simple in structure, be power source, can prevent from can't keep vacuum and can keep the vacuum pumping device of the Centrifugal water pump of degree of vacuum equally with process pump outlet pressure water because of power failure.
The purpose of this utility model is to realize like this, a kind of vacuum pumping device of centrifugal water pump, in the export pipeline of Centrifugal water pump, connect a pipeline and a Water flow adjusting valve is set, Water flow adjusting valve is connected to a jet-type air extractor, jet-type air extractor is arranged in the wet pit top, one gas holder is set on pipeline between Centrifugal water pump and the air ejector, and gas holder is provided with vacuum gauge.Jet-type air extractor vacuum draw mouth is connected to gas holder, in the middle of the pipeline suction regulator valve is set, and gas holder also connects vacuum pump by the vacuum outlet modulating valve.Described Centrifugal water pump is 2, is connected in parallel in the pipeline.
The beneficial effects of the utility model: compared with prior art, at first, increased considerably gettering quantity, guaranteed to form the stability and the quality of vacuum, solved the reserve pump that is caused because of power failure and fallen vacuum problem.Secondly, the press water that the utilization and operation pump provides need not dispose the Boiler Steam system as the operation power source of jet-type air extractor, and pipeline is simple, and is easy to operate, and performance is more stable, can reach same high rate of air sucked in required and degree of vacuum, has also saved the energy.
Description of drawings:
Fig. 1 is the utility model system architecture schematic representation.
Among the figure: 1-water pump, 2-jet-type air extractor, 3-gas holder, 4-vacuum gauge, 5-Water flow adjusting valve, 6-suction regulator valve, 7-vacuum pump, 8-pond, 9-vacuum outlet modulating valve.
Embodiment:
With reference to Fig. 1, a kind of vacuum pumping device of centrifugal water pump, in the export pipeline of Centrifugal water pump 1, connect a pipeline and a Water flow adjusting valve 5 is set, Water flow adjusting valve 5 is connected to a jet-type air extractor 2, jet-type air extractor adopts that traditional design---intake pipe, nozzle and Venturi tube are arranged on an axis from top to bottom, the vacuum draw mouth is arranged on the side of the pump housing, the negative pressure-pumping vacuum of utilizing injection water and Venturi tube to form.Jet-type air extractor 2 is arranged in wet pit 8 tops, and water jets can directly enter in the wet pit 8.One gas holder 3 is set on pipeline between Centrifugal water pump 1 and the jet-type air extractor 2,, and vacuum gauge 4 is set so that stablize degree of vacuum.Jet-type air extractor 2 vacuum draw mouths are connected to gas holder 3, in the middle of the pipeline suction regulator valve 6 are set, and gas holder 3 also connects vacuum pump 7 by vacuum outlet modulating valve 9, and it is used to set up vacuum in Centrifugal water pump 1 initial start-up.
Before the initial start-up Centrifugal water pump 1, start vacuum pump 7 and also open its vacuum outlet modulating valve 9, according to the vacuum indication of the vacuum gauge 4 of gas holder 3 sides, when the vacuum height that sucts that reaches Centrifugal water pump 1, start a water pump in the Centrifugal water pump 1, another is standby.Then, the flow control valve 5 of fetching boiling water, pressure water source comes into operation, open suction regulator valve 6, make jet-type air extractor 2 put into operation, close vacuum outlet modulating valve 9, inactive vacuum pump 7, thus reach the purpose of keeping reserve pump steady and continuous degree of vacuum, energy saving.
Claims (2)
1, a kind of vacuum pumping device of centrifugal water pump, it is characterized in that: in the export pipeline of Centrifugal water pump, connect a pipeline and a Water flow adjusting valve is set, Water flow adjusting valve is connected to a jet-type air extractor, jet-type air extractor is arranged in the wet pit top, one gas holder is set on pipeline between Centrifugal water pump and the air ejector, gas holder is provided with vacuum gauge, jet-type air extractor vacuum draw mouth is connected to gas holder, in the middle of the pipeline suction regulator valve is set, gas holder also connects vacuum pump by the vacuum outlet modulating valve.
2, the vacuum pumping device of a kind of centrifugal water pump according to claim 1 is characterized in that: described Centrifugal water pump is 2, is connected in parallel in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200371063U CN201363282Y (en) | 2009-02-19 | 2009-02-19 | Evacuating device of centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200371063U CN201363282Y (en) | 2009-02-19 | 2009-02-19 | Evacuating device of centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363282Y true CN201363282Y (en) | 2009-12-16 |
Family
ID=41473946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200371063U Expired - Fee Related CN201363282Y (en) | 2009-02-19 | 2009-02-19 | Evacuating device of centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363282Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485040A (en) * | 2015-12-24 | 2016-04-13 | 合肥敬业电子有限公司 | Vacuum detection device and detection method |
-
2009
- 2009-02-19 CN CNU2009200371063U patent/CN201363282Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485040A (en) * | 2015-12-24 | 2016-04-13 | 合肥敬业电子有限公司 | Vacuum detection device and detection method |
| CN105485040B (en) * | 2015-12-24 | 2018-04-27 | 合肥敬业电子有限公司 | A kind of vacuum checking device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20180219 |