CN204853439U - Small -size turbo generator set low pressure feedwater anti -cavitation device - Google Patents
Small -size turbo generator set low pressure feedwater anti -cavitation device Download PDFInfo
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- CN204853439U CN204853439U CN201520522416.XU CN201520522416U CN204853439U CN 204853439 U CN204853439 U CN 204853439U CN 201520522416 U CN201520522416 U CN 201520522416U CN 204853439 U CN204853439 U CN 204853439U
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- heat exchanger
- low pressure
- water
- pump
- oxygen
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Abstract
The utility model discloses a small -size turbo generator set low pressure feedwater anti -cavitation device, including condensate pump, oxygen -eliminating device and heat exchanger, the condensate pump output with the interface type end is connected between the heat exchanger tubes, between the heat exchanger tubes interface outlet end with the oxygen -eliminating device water inlet is connected, the oxygen -eliminating device delivery port is connected with low pressure water supply equipment, low pressure water supply equipment output with the interface type end is connected in the heat exchanger tubes, the interface outlet end is connected with the water -feeding pump in the heat exchanger tubes, be connected with the boiler for water pump output end. The beneficial effect of the utility model: establish heat exchanger, the effectual life who prolongs the water -feeding pump through locating to add at water -feeding pump inlet pipe to good and the saving cost of stability during the operation, and then make this kind of small -size turbo generator set low pressure feedwater anti -cavitation device possess more wide development space.
Description
Technical field
The utility model relates to field of electrical equipment, specifically, relates to a kind of Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device.
Background technology
At present, the Method of Small Scale Turbo-generator of China, the feed temperature of low pressure feed water system is 104 DEG C, oxygen-eliminating device position absolute altitude about 13.5 meters, not configuring the fore pump of feed pump, in order to prevent feed pump cavitation, adopting raising oxygen-eliminating device installation site to reach the object that cavitation does not occur in feedwater.This design is in Practical Project, the generation of feed pump cavitation can not be prevented completely, in small power station's actual motion, owing to adopting this design, often there is cavitation in entrance of water-supplying pump, make feed pump flow passage part that the damage caused because of cavitation often occur, the seal clearance of feed pump static and dynamic sealing part increases, feed pump operational efficiency reduces, feed pump run less than 1 year because cavitation generation part damage and integral replacing feed pump or parts, waste electric energy is caused because cavitation makes feed pump efficiency reduce, because cavitation frequently changes feed pump parts or whole pump cost substantial contribution.After adopting the power plant of this design to build up, feed pump cavitation happens occasionally, and this is a general problem.
So the feedwater anti-cavitation device that when developing a kind of use, long service life, good stability and cost are low, just becomes the problem that insider needs solution badly.
Utility model content
For in correlation technique above-mentioned lack in the market use time long service life, good stability and cost low feedwater anti-cavitation device problem, the utility model proposes a kind of Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device, effectively can solve short, poor stability and the high problem of cost in service life when tradition feedwater anti-cavitation device uses.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device, comprise condensate pump, oxygen-eliminating device and heat exchanger, described condensate pump output is connected with described Tube Sheet of Heat Exchanger interface input, described Tube Sheet of Heat Exchanger interface output is connected with described oxygen-eliminating device water inlet, described oxygen-eliminating device delivery port is connected with low pressure feed water device, described low pressure feed water device output is connected with described Tube Sheet of Heat Exchanger inner joint input, described Tube Sheet of Heat Exchanger inner joint output is connected with feed pump, and described feed pump output is connected with boiler.
Further, described heat exchanger comprises water-water heat exchanger.
Further, fore pump is connected with between described heat exchanger and described feed pump.
The beneficial effects of the utility model: by adding heat exchanger at entrance of water-supplying pump pipeline place, effectively extend the service life of feed pump, and good stability and cost-saving when running, and then this Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device is made to have more wide development space.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device according to the utility model embodiment.
In figure:
1, condensate pump; 2, oxygen-eliminating device; 3, heat exchanger; 4, low pressure feed water device; 5, feed pump; 6, boiler; 7, fore pump.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain, all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device according to embodiment of the present utility model, comprise condensate pump 1, oxygen-eliminating device 2 and heat exchanger 3, described condensate pump 1 output is connected with described heat exchanger 3 pipe interface input, described heat exchanger 3 pipe interface output is connected with described oxygen-eliminating device 2 water inlet, described oxygen-eliminating device 2 delivery port is connected with low pressure feed water device 4, described low pressure feed water device 4 output is connected with described heat exchanger 3 pipe inner joint input, described heat exchanger 3 pipe inner joint output is connected with feed pump 5, described feed pump 5 output is connected with boiler 6.
In one embodiment, described heat exchanger 3 comprises water-water heat exchanger.
In one embodiment, fore pump 7 is connected with between described heat exchanger 3 and described feed pump 5.
Conveniently understand technique scheme of the present utility model, below by way of in concrete occupation mode, technique scheme of the present utility model is described in detail.
When specifically using, described feed pump 5 inlet duct installs a described heat exchanger 3, described condensate pump 1 outlet conduit is guided to described heat exchanger 3, the water of described low pressure feed water device 4 output is at the Bottomhole pressure of described heat exchanger 3, the condensate water that described condensate pump 1 exports flows between the pipe of described heat exchanger 3, described low pressure feed water device 4 heat-setting water, realize power conversion, the low pressure feed water of 50t/h drops to 78 DEG C by 104 DEG C, the condensate water of 35t/h is heated to 75 DEG C by 40 DEG C, because described feed pump 5 inlet temperature has dropped to 78 DEG C by 104 DEG C, low pressure feed water system net positive suction head brings up to less than 2.5 meters, achieve the object that described feed pump 5 runs not cavitation.
In sum, by means of technique scheme of the present utility model, by adding heat exchanger 3 at feed pump 5 inlet duct place, effectively extend the service life of feed pump, and good stability and cost-saving when running, and then this Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device is made to have more wide development space.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device, it is characterized in that, comprise condensate pump (1), oxygen-eliminating device (2) and heat exchanger (3), described condensate pump (1) output is connected with described heat exchanger (3) pipe interface input, described heat exchanger (3) pipe interface output is connected with described oxygen-eliminating device (2) water inlet, described oxygen-eliminating device (2) delivery port is connected with low pressure feed water device (4), described low pressure feed water device (4) output is connected with described heat exchanger (3) pipe inner joint input, described heat exchanger (3) pipe inner joint output is connected with feed pump (5), described feed pump (5) output is connected with boiler (6).
2. Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device according to claim 1, it is characterized in that, described heat exchanger (3) comprises water-water heat exchanger.
3. Method of Small Scale Turbo-generator low pressure feed water anti-cavitation device according to claim 1, is characterized in that, be connected with fore pump (7) between described heat exchanger (3) and described feed pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522416.XU CN204853439U (en) | 2015-07-17 | 2015-07-17 | Small -size turbo generator set low pressure feedwater anti -cavitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522416.XU CN204853439U (en) | 2015-07-17 | 2015-07-17 | Small -size turbo generator set low pressure feedwater anti -cavitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204853439U true CN204853439U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522416.XU Expired - Fee Related CN204853439U (en) | 2015-07-17 | 2015-07-17 | Small -size turbo generator set low pressure feedwater anti -cavitation device |
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| CN (1) | CN204853439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500573A (en) * | 2019-09-23 | 2019-11-26 | 云南锡业股份有限公司铜业分公司 | A kind of system and method preventing electrode steam boiler water supply pump cavitation |
-
2015
- 2015-07-17 CN CN201520522416.XU patent/CN204853439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500573A (en) * | 2019-09-23 | 2019-11-26 | 云南锡业股份有限公司铜业分公司 | A kind of system and method preventing electrode steam boiler water supply pump cavitation |
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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: 20151209 Termination date: 20190717 |