CN204574855U - A kind of condenser vacuum extractor - Google Patents
A kind of condenser vacuum extractor Download PDFInfo
- Publication number
- CN204574855U CN204574855U CN201520227589.9U CN201520227589U CN204574855U CN 204574855 U CN204574855 U CN 204574855U CN 201520227589 U CN201520227589 U CN 201520227589U CN 204574855 U CN204574855 U CN 204574855U
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Abstract
The utility model discloses a kind of condenser vacuum extractor, comprise main valve, multi-level water cooling lobe pump, water ring pump, steam-water separator, water ring pump heat exchanger, exhaust outlet, it is characterized in that: described multi-level water cooling lobe pump comprises at least two water-cooled lobe pumps be connected in series, main valve connects the air inlet of described multi-level water cooling lobe pump by pipeline, the gas outlet of described multi-level water cooling lobe pump connects the water inlet air inlet of water ring pump by pipeline, the drainage gas port of described water ring pump is connected with the water inlet air inlet of steam-water separator, the delivery port of described steam-water separator is connected with the water inlet of water ring pump heat exchanger, the delivery port of described water ring pump heat exchanger is connected with the water inlet air inlet of water ring pump, exhaust outlet is positioned at steam-water separator upper end, a kind of condenser vacuum extractor described in the utility model, water-cooled lobe pump adopts internal water to spray cooling heat dissipation, and water consumption is minimum, and do not need to be equipped with independent cooler, it is low in energy consumption, and vacuum is high.
Description
Technical field
The utility model relates to plant condenser vacuum pumping technology field, is specifically related to a kind of condenser vacuum extractor.
Background technology
Vacuumizing of current plant condenser, main employing single-stage air cooling Roots water ring pump, but single-stage air cooling Roots water ring pump final vacuum is very low on the one hand, particularly when it and water ring pump combined running, the scope of application is restricted, and the final vacuum of whole pump may be lower; Single-stage air cooling Roots water ring unit water consumption is large on the other hand, waste water resource, and need be equipped with a core pulling and filling system, and cost is higher.
Utility model content
The technical problem that the utility model solves is to provide a kind of condenser vacuum extractor, can improve the vacuum of condenser, and cheap.
The technical solution of the utility model is: a kind of condenser vacuum extractor, comprise main valve, multi-level water cooling lobe pump, water ring pump, steam-water separator, water ring pump heat exchanger, exhaust outlet, it is characterized in that: described multi-level water cooling lobe pump is connected in series by least two water-cooled lobe pumps, main valve connects the air inlet of described multi-level water cooling lobe pump by pipeline, the gas outlet of described multi-level water cooling lobe pump connects the water inlet air inlet of water ring pump by pipeline, the water outlet gas outlet of described water ring pump is connected with the water inlet air inlet of steam-water separator, the delivery port of described steam-water separator is connected with the water inlet of water ring pump heat exchanger, the discharge outlet of described water ring pump heat exchanger is connected with the water inlet air inlet of water ring pump, described exhaust outlet is positioned at steam-water separator upper end.
Further, be provided with by-pass line between the air inlet of multi-level water cooling lobe pump and gas outlet, described by-pass line is provided with valve for pressure difference.
Further, water ring pump upper end is provided with overflow valve.
Further, the pipeline being communicated with the gas outlet of multi-level water cooling lobe pump and the water inlet air inlet of water ring pump is provided with check-valves.
Further, the pipeline of the water outlet gas outlet and steam-water separator water inlet air inlet that are communicated with water ring pump is provided with rubber ball valve.
Further, water-cooled lobe pump is five, two often adjacent water-cooled lobe pumps interconnect, and the air inlet being positioned at the water-cooled lobe pump of multi-level water cooling lobe pump one end is by pipeline communication in main valve, and the gas outlet of the water-cooled lobe pump of the other end is connected with the water inlet air inlet of water ring pump by pipeline.
The beneficial effects of the utility model are: adopt multi-level water cooling Roots water ring pump to replace original single-stage water-cooled Roots water ring pump, reduce operate power, thus operating cost is reduced from single-stage to multistage change; Water-cooled lobe pump adopts internal water to spray cooling heat dissipation, and water consumption is minimum, does not need to be equipped with independent cooler; This vacuum extractor is low in energy consumption simultaneously, and vacuum is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-main valve, 2-multi-level water cooling lobe pump, 3-water ring pump, 4-steam-water separator, 5-water ring pump heat exchanger, 6-exhaust outlet, 7-water-cooled lobe pump, 8-by-pass line, 9-valve for pressure difference, 10-overflow valve, 11-check-valves, 12-rubber ball valve.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the utility model further.
As shown in Figure 1, a kind of condenser vacuum extractor, comprises main valve 1, multi-level water cooling lobe pump 2, water ring pump 3, steam-water separator 4, water ring pump heat exchanger 5, exhaust outlet 6.Described multi-level water cooling lobe pump 2 comprises at least two water-cooled lobe pumps 7 be connected in series, concrete described water-cooled lobe pump 7 is five, two often adjacent water-cooled lobe pumps 7 interconnect, the air inlet being positioned at the water-cooled lobe pump 7 of multi-level water cooling lobe pump 2 one end is by pipeline communication in main valve 1, and the gas outlet of the water-cooled lobe pump 7 of the other end is connected with the water inlet air inlet of water ring pump 3 by pipeline.The present embodiment uses described multi-level water cooling lobe pump 2 to combine with water ring pump 3, greatly can improve the vacuum of pump, and can improve ultimate pressure of a pump.Described main valve 1 connects the air inlet of multi-level water cooling lobe pump 2 by pipeline, the exhaust outlet of described multi-level water cooling lobe pump 2 connects the water inlet air inlet of water ring pump 3 by pipeline, generally, select water ring pump 3 as the fore pump of multi-level water cooling lobe pump 2, mainly because it can extract a large amount of coercibility steam, particularly processed medium can make pumping fluid worsen and affect its performance, or more obvious time vacuum system does not need oil pollution.The effect of water ring pump 3 is the preparation vacuum caused needed for lobe pump, therefore the inlet pressure requiring water ring pump 3 to reach is low (vacuum is high as far as possible) as far as possible, make the pressure release of lobe pump low as far as possible, guarantee that lobe pump runs more reliable, the pumping efficiency of pump is higher.The drainage gas port of described water ring pump 3 is connected with steam-water separator 4 water inlet, when steam moisture in a large number enters this steam-water separator 4, with the centrifugal inclined motion that dips down, the moisture carried secretly is separated because speed reduces, separated water is discharged from the delivery port of steam-water separator 4, separated gas is discharged from exhaust outlet 6, this steam-water separator 4 delivery port is connected with the water inlet of described water ring pump heat exchanger 5, and the delivery port of described water ring pump heat exchanger 5 is connected with the water inlet of water ring pump 3.
Be provided with by-pass line 8 between the air inlet of described multi-level water cooling lobe pump 2 and gas outlet, described by-pass line 8 is provided with valve for pressure difference 9.Under system is in design point, all devices all oepration at full load time, valve for pressure difference 9 aperture is zero (without bypass discharge), at this moment namely the pressure differential (also known as backwater pressure reduction) of differential pressure controller two ends interface is the setting pressure difference of controller, after end load diminishes, the two-way valve of end turns down, will improve for backwater pressure reduction and exceed setting value, under the effect of differential pressure controller, valve for pressure difference 9 will be opened automatically, because valve for pressure difference 9 is in parallel with backwater pressure system, its aperture adds senior general to be made to reduce until just stop when reaching setting pressure reduction for backwater pressure reduction, part water flows through from valve for pressure difference 9 through by-pass line 8, water ring pump 3 is entered by pipeline with after the water of multi-level water cooling lobe pump 2 mixes.
Described water ring pump 3 upper end is provided with overflow valve 10, and this overflow valve 10 has pressure-regulating overflow effect, and when system pressure increases, traffic demand can be made to reduce, and now overflow valve 10 is opened, and ensures overflow valve 10 inlet pressure, during system worked well, and valve closing.
The pipeline being communicated with the gas outlet of multi-level water cooling lobe pump 2 and the water inlet air inlet of water ring pump 3 is provided with check-valves 11, this check-valves 11 can stop current to flow backwards automatically, its flap is opened under fluid pressure action, current flow to outlet side from inlet side, when inlet side pressure is lower than outlet side, flap, at fluid pressure difference, is closed to prevent water stream from flowing backwards under the factor effects such as gravity own automatically.
The pipeline being communicated with the drainage gas port of water ring pump 3 and the water inlet air inlet of steam-water separator 4 is provided with rubber ball valve 12, the effect of this rubber ball valve 12 is the phenomenons eliminating overcompression that pump produces in operation process and insufficient compression, these two kinds of phenomenons all can cause too much power consumption, because water ring pump 3 does not have direct air bleeding valve, and pressure at expulsion is fixing all the time, the compression ratio of water ring pump 3 is decided by the final position of air inlet and the original position of exhaust outlet, but these two positions are changeless, thus the demand of suction pressure change is not suitable with, for addressing this problem, generally rubber ball valve 12 is set below exhaust outlet, during to reach pressure at expulsion in convenient pump chamber too early, ball valve is opened automatically, gas is discharged, eliminate overcompression phenomenon, generally when designing water ring pump 3, general all with minimum suction pressure determination compression ratio, exhaust outlet original position is determined with this, this addresses the problem the phenomenon of insufficient compression.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a condenser vacuum extractor, comprise main valve (1), multi-level water cooling lobe pump (2), water ring pump (3), steam-water separator (4), water ring pump heat exchanger (5), exhaust outlet (6), it is characterized in that: described multi-level water cooling lobe pump (2) comprises at least two water-cooled lobe pumps (7) be connected in series, main valve (1) connects the air inlet of described multi-level water cooling lobe pump (2) by pipeline, the gas outlet of described multi-level water cooling lobe pump (2) connects the water inlet air inlet of water ring pump (3) by pipeline, the water outlet gas outlet of described water ring pump (3) is connected with the water inlet air inlet of steam-water separator (4), the delivery port of described steam-water separator (4) is connected with the water inlet of water ring pump heat exchanger (5), the discharge outlet of described water ring pump heat exchanger (5) is connected with the water inlet air inlet of water ring pump (3), described exhaust outlet (6) is positioned at steam-water separator (4) upper end.
2. a kind of condenser vacuum extractor according to claim 1, it is characterized in that: be provided with by-pass line (8) between the air inlet of described multi-level water cooling lobe pump (2) and gas outlet, described by-pass line (8) is provided with valve for pressure difference (9).
3. a kind of condenser vacuum extractor according to claim 1 and 2, is characterized in that: described water ring pump (3) is provided with overflow valve (10).
4. a kind of condenser vacuum extractor according to claim 1 and 2, is characterized in that: the pipeline being communicated with the gas outlet of described multi-level water cooling lobe pump (2) and the water inlet air inlet of water ring pump (3) is provided with check-valves (11).
5. a kind of condenser vacuum extractor according to claim 1 and 2, is characterized in that: the pipeline of the water outlet gas outlet and steam-water separator (4) water inlet air inlet that are communicated with described water ring pump (3) is provided with rubber ball valve (12).
6. a kind of condenser vacuum extractor according to claim 1, it is characterized in that: described water-cooled lobe pump (7) is five, two often adjacent water-cooled lobe pumps (7) interconnect, the air inlet being positioned at the water-cooled lobe pump (7) of multi-level water cooling lobe pump (2) one end is by pipeline communication in main valve (1), and the gas outlet of the water-cooled lobe pump (7) of the other end is connected by the water inlet air inlet of pipeline with water ring pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227589.9U CN204574855U (en) | 2015-04-15 | 2015-04-15 | A kind of condenser vacuum extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227589.9U CN204574855U (en) | 2015-04-15 | 2015-04-15 | A kind of condenser vacuum extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204574855U true CN204574855U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520227589.9U Expired - Fee Related CN204574855U (en) | 2015-04-15 | 2015-04-15 | A kind of condenser vacuum extractor |
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| Country | Link |
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| CN (1) | CN204574855U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010536A1 (en) * | 2016-07-12 | 2018-01-18 | 上海伊莱茨真空技术有限公司 | Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor |
| US20210372404A1 (en) * | 2019-01-10 | 2021-12-02 | Raymond Zhou Shaw | Power saving vacuuming pump system based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps |
| US11619231B1 (en) * | 2021-12-28 | 2023-04-04 | Elvac Co., Ltd | Complete bearing-sealed root vacuum pump system capable of promoting vacuum ability of condenser of power plant |
-
2015
- 2015-04-15 CN CN201520227589.9U patent/CN204574855U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010536A1 (en) * | 2016-07-12 | 2018-01-18 | 上海伊莱茨真空技术有限公司 | Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor |
| GB2568609A (en) * | 2016-07-12 | 2019-05-22 | Elivac Co Ltd | Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor |
| US20210372404A1 (en) * | 2019-01-10 | 2021-12-02 | Raymond Zhou Shaw | Power saving vacuuming pump system based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps |
| US11815095B2 (en) * | 2019-01-10 | 2023-11-14 | Elival Co., Ltd | Power saving vacuuming pump system based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps |
| US11619231B1 (en) * | 2021-12-28 | 2023-04-04 | Elvac Co., Ltd | Complete bearing-sealed root vacuum pump system capable of promoting vacuum ability of condenser of power plant |
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| Date | Code | Title | Description |
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| 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: 20150819 Termination date: 20160415 |