CN203584761U - Electric water feeding pump system with frequency-conversion speed regulation of gearbox - Google Patents
Electric water feeding pump system with frequency-conversion speed regulation of gearbox Download PDFInfo
- Publication number
- CN203584761U CN203584761U CN201320779543.9U CN201320779543U CN203584761U CN 203584761 U CN203584761 U CN 203584761U CN 201320779543 U CN201320779543 U CN 201320779543U CN 203584761 U CN203584761 U CN 203584761U
- Authority
- CN
- China
- Prior art keywords
- water feeding
- feeding pump
- pump system
- water pump
- speedup box
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 title abstract description 4
- 239000000314 lubricant Substances 0.000 claims description 9
- 230000001050 lubricating effect Effects 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 17
- 230000004323 axial length Effects 0.000 description 3
- 239000010730 cutting oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an electric water feeding pump system with frequency-conversion speed regulation of a gearbox. The electric water feeding pump system comprises a power circuit breaker, a frequency converter, a motor, the gearbox, a lubricating oil pump, a lubricating oil cooler and a water feeding pump, wherein the gearbox comprises an input shaft, a driving gear, a driven gear and an output shaft; the power circuit breaker is connected with the motor by the frequency converter; an output rotating shaft of the motor is connected with the input shaft of the gearbox; the input shaft is connected with the driving gear which is connected with the driven gear in a meshing manner; the driven gear is connected with the output shaft which is connected with the water feeding pump. The electric water feeding pump system disclosed by the utility model has the advantages that the original heavy-duty concrete foundation of the water feeding pump unit does not need to be modified, and a coupling does not need to be replaced, so that the water feeding pump system becomes simple, the efficiency is high and the investment can be saved; and the stepless speed regulation of the existing hydraulic coupler is replaced by the frequency-conversion speed regulation mode, so that the unit consumption of the water pump due to transferring loss of the hydraulic coupler can be reduced. In addition, compared with the hydraulic coupler, the electric water feeding pump system is lower in noise and is beneficial to reducing the working noise of the water feeding pump system.
Description
Technical field
The utility model relates to a kind of speedup box electrical variable frequency adjustable speed feed-water pump.
Background technique
Heat power plant boiler electrically driven feedpump generally regulates speed of feedwater by hydraulic couplers.Hydraulic couplers speed governing electrically driven feedpump system mainly comprises front-mounted pump, feed water pump motor, hydraulic couplers and feed water pump, these apparatus arrangement reach in the degree of depth on the heavily loaded concrete basis of several meters, with shaft joint, be accurately connected as a single entity, be widely used in power station as boiler is carried generating working medium.Feed water pump motor is the power source of feed water pump, and the power of hydraulic couplers transmission motor is to feed water pump, and the rotating speed that simultaneously utilizes the working oil liquid level regulating between fluid coupling pump impeller and turbine to control feed water pump changes the flow of feed water pump.
Hydraulic couplers governing feedwater pump is because of the feature of variable working condition, because the deficiency of hydraulic couplers, feed water pump and feed water pump motor control characteristic exists different power losss in supplying with feedwater flow interval.
At present, high, the axial length in input shaft/output shaft diameter, axle square, the vertical center of commercially available series standard speedup box and speedup box anchor (bolt) hole are all completely different from the relative dimensions of former hydraulic couplers.Change the mounting point that speedup box will be changed feed water pump or feed water pump motor, also to transform heavily loaded concrete for speedup box basis is installed, change the shaft joint between motor drive shaft and speedup box input shaft and speedup box output shaft and feed water pump live axle, transform time-consuming, effort, expense fund.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of and saves time, the speedup box electrical variable frequency adjustable speed feed-water pump of laborsaving, investment-saving and low power consumption.
For achieving the above object, the utility model adopts following technological scheme:
A speedup box electrical variable frequency adjustable speed feed-water pump, it comprises power circuit breaker, frequency variator, motor, speedup box, lubricating pump, lubricant oil oil cooler and feed water pump; Wherein, this speedup box comprises input shaft, driving gear, driven gear and output shaft, and this lubricating pump connects this driving gear by this lubricant oil oil cooler;
This power circuit breaker connects this motor by frequency variator, the output revolving shaft of this motor connects the input shaft of this speedup box, and this input shaft connects this driving gear, this driving gear this driven gear that is connected with a joggle, this driven gear connects this output shaft, and this output shaft connects this feed water pump.
Further, the centre distance of the casing of this speedup box, center is high, mounting foot size is all the same with the size of former hydraulic couplers shell.
The beneficial effects of the utility model are as follows:
Above-mentioned model utility is transformed into electrical variable frequency adjustable speed feed water pump by hydraulic couplers speed governing electrically driven feedpump, can reduce power consumption, realizes effect simple, efficient and that reduce investment outlay.Input shaft/output shaft diameter of this speedup box, axle square, vertical center are high, axial length and speedup box anchor (bolt) hole all completely accurately consistent with the relative dimensions of former hydraulic couplers, when hydraulic couplers governing feedwater pump is implemented to freguency control reform, need only pull down hydraulic couplers, change speedup box, the original heavily loaded concrete of feed water pump group basis need not be transformed, shaft joint needn't be changed.
Accompanying drawing explanation
Fig. 1 is the module diagram of the better embodiment of the utility model speedup box electrical variable frequency adjustable speed feed-water pump.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1, the utility model relates to a kind of speedup box electrical variable frequency adjustable speed feed-water pump, and its better embodiment comprises power circuit breaker, frequency variator, motor, speedup box, lubricating pump, lubricant oil oil cooler and feed water pump.Wherein, this speedup box comprises input shaft, driving gear, driven gear and output shaft.
This power circuit breaker connects this motor by frequency variator, the output revolving shaft of this motor connects the input shaft of this speedup box, this input shaft connects this driving gear, this driving gear this driven gear that is connected with a joggle, this driven gear connects this output shaft, this output shaft connects this feed water pump, and this lubricating pump connects this driving gear by this lubricant oil oil cooler.
External power supply is powered to frequency variator by this power circuit breaker, and this motor frequency conversion of Frequency Converter Control drives driving gear and the driven gear of this speedup box, and then by output shaft, regulates the rotating speed of feed water pump.This lubricating pump is used for exporting lubricant oil to this speedup box, and this lubricated oil cooler is for cutting oil.
Above-mentioned model utility replaces the stepless speed regulation of existing hydraulic couplers by frequency control way, can reduce the water pump unit consumption that the slippages due to hydraulic couplers causes.
For further saving cost and improvement project, can transform the feed-water pump of prior art as native system in the following manner:
1. remove the hydraulic couplers of former feed-water pump, the boundary dimension of surveying and drawing former hydraulic couplers shell, comprises the input shaft of former hydraulic couplers and axle centre distance, the center of output shaft are high, mounting foot size etc.
The centre distance of the casing of this speedup box, center is high, mounting foot size is all in full accord with the installation dimension of former coupler shell, so, need not change feed water pump group, make the velocity ratio of driving gear and driven gear meet the rotating speed requirement of feed water pump, meanwhile, be conducive to save transformation time and reforming cost.
3) speedup box is arranged on to the position of former hydraulic couplers, and speedup box is connected by above-mentioned annexation with other devices of native system;
4) remove the working oil oil cooler of former hydraulic couplers, but retain lubricant oil oil cooler, the lubricating pump cutting oil that is native system by this lubricant oil oil cooler.
Above-mentioned model utility is transformed into electrical variable frequency adjustable speed feed water pump by hydraulic couplers speed governing electrically driven feedpump, can reduce power consumption, realizes effect simple, efficient and that reduce investment outlay.Input shaft/output shaft diameter of this speedup box, axle square, vertical center are high, axial length and speedup box anchor (bolt) hole all completely accurately consistent with the relative dimensions of former hydraulic couplers, when hydraulic couplers governing feedwater pump is implemented to freguency control reform, need only pull down hydraulic couplers, change speedup box, the original heavily loaded concrete of feed water pump group basis need not be transformed, shaft joint needn't be changed.
For a person skilled in the art, can make other various corresponding changes and distortion according to technological scheme described above and design, and these all changes and distortion all should belong to the protection domain of the utility model claim within.
Claims (2)
1. a speedup box electrical variable frequency adjustable speed feed-water pump, is characterized in that: it comprises power circuit breaker, frequency variator, motor, speedup box, lubricating pump, lubricant oil oil cooler and feed water pump; Wherein, this speedup box comprises input shaft, driving gear, driven gear and output shaft;
This power circuit breaker connects this motor by frequency variator, the output revolving shaft of this motor connects the input shaft of this speedup box, this input shaft connects this driving gear, this driving gear this driven gear that is connected with a joggle, this driven gear connects this output shaft, this output shaft connects this feed water pump, and this lubricating pump connects this driving gear by this lubricant oil oil cooler.
2. speedup box electrical variable frequency adjustable speed feed-water pump as claimed in claim 1, is characterized in that: centre distance, the center of the casing of this speedup box are high, mounting foot size is all the same with the size of former hydraulic couplers shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320779543.9U CN203584761U (en) | 2013-11-30 | 2013-11-30 | Electric water feeding pump system with frequency-conversion speed regulation of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320779543.9U CN203584761U (en) | 2013-11-30 | 2013-11-30 | Electric water feeding pump system with frequency-conversion speed regulation of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584761U true CN203584761U (en) | 2014-05-07 |
Family
ID=50582693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320779543.9U Expired - Lifetime CN203584761U (en) | 2013-11-30 | 2013-11-30 | Electric water feeding pump system with frequency-conversion speed regulation of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405612A (en) * | 2014-11-14 | 2015-03-11 | 神华集团有限责任公司 | Boiler and feed pump system thereof |
| CN106704211A (en) * | 2015-11-18 | 2017-05-24 | 亿海天成(北京)科技有限公司 | Frequency change and energy conservation system of thermal power plant electric water feeding pump |
-
2013
- 2013-11-30 CN CN201320779543.9U patent/CN203584761U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405612A (en) * | 2014-11-14 | 2015-03-11 | 神华集团有限责任公司 | Boiler and feed pump system thereof |
| CN106704211A (en) * | 2015-11-18 | 2017-05-24 | 亿海天成(北京)科技有限公司 | Frequency change and energy conservation system of thermal power plant electric water feeding pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |