CN203796538U - Double-drive acceleration type speed regulation device for large-flow water feed pump - Google Patents
Double-drive acceleration type speed regulation device for large-flow water feed pump Download PDFInfo
- Publication number
- CN203796538U CN203796538U CN201420164180.2U CN201420164180U CN203796538U CN 203796538 U CN203796538 U CN 203796538U CN 201420164180 U CN201420164180 U CN 201420164180U CN 203796538 U CN203796538 U CN 203796538U
- Authority
- CN
- China
- Prior art keywords
- speed
- differential case
- input shaft
- output shaft
- gear 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 - Fee Related
Links
Landscapes
- Structure Of Transmissions (AREA)
Abstract
A double-drive acceleration type speed regulation device for a large-flow water feed pump comprises a differential gear box. The first input shaft of the differential gear box is connected with the output shaft of a main motor through a first brake. The second input shaft of the differential gear box is connected with the output shaft of a variable-frequency motor through a second brake. The output shaft of the differential gear box is connected with the drive shaft of the water feed pump. The first input shaft of the differential gear box is connected with the inner gear ring of a planet mechanism. The inner gear ring is connected with a planet rack. The second input shaft of the differential gear box is connected with the planet rack through a gear. The planet rack is connected with a sun gear. The sun gear is connected with the drive shaft of the water feed pump through the output shaft of the differential gear box. The double-drive acceleration type speed regulation device has the advantages that by the differential gear box, the speed and power of the main motor with constant rotation speed are combined with the speed and power of the variable-frequency speed to form a speed and power output which can be adjusted in a certain range, and the working requirements of the water feed pump are satisfied.
Description
Technical field
The utility model relates to a kind of boiler feed pump speed control system, relates in particular to a kind of large flow feed water pump Dual Drive acceleration type arrangements for speed regulation.
Background technique
Boiler feed pump is the important supplementary equipment of the one in thermal power plant.Along with popularizing of Electricity Generation unit application, the power of heavy duty boiler feed pump also increases thereupon, and, be the fluctuation and the variation that adapt to load in power generation process, require boiler feed pump regulation output flow at any time, to keep the water level of water bag in water supply system in allowed band.Regulating the most economical method of feed water pump flow is the working speed that regulates water pump, at present, conventional feed water pump speed regulating method is generally the several different methods such as the planetary pinion speed governing that speed regulation type hydrodynamic coupler speed governing, Steam Turbine Driven speed governing, high-voltage frequency conversion and speed-adjusting, hydraulic couplers and planetary cross-country power mechanism be complex as a whole.The shortcoming of first two speed regulating method is that efficiency is lower, and adopts when steam turbine speed control system maintenance work amount also larger.The shortcoming of high-voltage variable-frequency and variable-speed system is that cost is higher, and easily produces harmonic pollution, affects other equipment of unit and normally works.Last a kind of arrangements for speed regulation are external product, expensive, the inconvenience of maintenance standby redundancy, and also overall power loss is also bigger than normal.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of large flow feed water pump Dual Drive acceleration type arrangements for speed regulation, the speed and the power stage that regulate within the specific limits, thus meet the job requirement of feed water pump.
In order to achieve the above object, the technological scheme that the utility model is taked is:
A kind of large flow feed water pump Dual Drive acceleration type arrangements for speed regulation, comprise differential case 3, the first input shaft 14 of differential case 3 is connected with the output shaft of main motor 1 by the first break 2, the second input shaft 7 of differential case 3 is connected with the output shaft of variable-frequency motor 5 by second brake 6, and differential case output shaft 12 is connected with the live axle of feed water pump 4.
The first input shaft 14 of described differential case 3 and the ring gear 10 of planetary mechanism are connected, and ring gear 10 is connected with planet carrier 9, and the second input shaft 7 of described differential case 3 is connected with planet carrier 9 by gear 8;
Planet carrier 9 is connected with sun gear 13, and sun gear 13 is connected with the live axle of feed water pump 4 by differential case output shaft 12.
The beneficial effects of the utility model: adopt a differential speed accelerating case, speed and the power of the speed of the main motor of an invariablenes turning speed and power and a frequency control motor are combined, form the speed that can regulate within the specific limits and power stage, thereby meet the job requirement of feed water pump.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model differential case 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
See figures.1.and.2, a kind of large flow feed water pump Dual Drive acceleration type arrangements for speed regulation, comprise differential case 3, the first input shaft 14 of differential case 3 is connected with the output shaft of main motor 1 by the first break 2, the second input shaft 7 of differential case 3 is connected with the output shaft of variable-frequency motor 5 by second brake 6, and differential case output shaft 12 is connected with the live axle of feed water pump 4.
With reference to Fig. 2, the first input shaft 14 of described differential case 3 and the ring gear 10 of planetary mechanism are connected, and ring gear 10 is connected with planet carrier 9; The second input shaft 7 of described differential case 3 is connected with planet carrier 9 by gear 8;
Planet carrier 9 is connected with sun gear 13, and sun gear 13 is connected with the live axle of feed water pump 4 by differential case output shaft 12.
Main motor 1 drives the first input shaft 14 of differential case 3, drive the ring gear 10 of planetary mechanism by the first input shaft 14, ring gear 10 drives planet carrier 9, planet carrier 9 drives sun gear 13 by certain velocity ratio, sun gear 13 drives feed water pump 4 by differential case output shaft 12, and the speed of main like this motor and power have just passed to feed water pump 4, and the speed transmission on this road is constant-speed ratio transmission, the invariablenes turning speed of main motor 1, the speed that passes to feed water pump 4 is also a constant value; The second input shaft 7 drives planet carrier 9 by gear 8, planet carrier 9 drives sun gear 13 by certain velocity ratio, too sun gear 13 drives feed water pump 4 by differential case output shaft 12, the speed of variable-frequency motor and power have just passed to feed water pump 4 like this, and the speed transmission on this road can be carried out speed adjusting by the output speed of adjusting variable-frequency motor 5.
The principle of organizing altogether of the present utility model is:
Can separate transmission in the situation of the road braking therein of two speed transfer routes between main motor 1 and variable-frequency motor 5 and feed water pump 4.In the time that the first break 2 of main motor 1 output terminal is braked, variable-frequency motor 5 can drive separately feed water pump 4 to work by differential case 3.This function can water supply pump 4 low speed starting and maintenance.In the time that variable-frequency motor 5 is braked, main motor 1 can be worked by differential case 3 drive feed water pumps 4.
In the time that main motor 1 and variable-frequency motor 5 are worked simultaneously, the working speed of feed water pump 4 and power are exactly the synthetic of the speed of these two motors while working independently and power, by adjusting the output speed of variable-frequency motor 5, the operating rate of feed water pump 4 just can realize within the specific limits and changing continuously, so just can meet the technological requirement of feed water pump 4 rotational speed regulation.
Dual Drive acceleration type speed-adjusting driving system is applicable to the rotational speed regulation of the similar devices such as large flow, high-power and high-revolving feed water pump, compressor.
Claims (1)
1. large flow feed water pump Dual Drive acceleration type arrangements for speed regulation, comprise differential case (3), it is characterized in that: first input shaft (14) of differential case (3) is connected with the output shaft of main motor (1) by the first break (2), second input shaft (7) of differential case (3) is connected with the output shaft of variable-frequency motor (5) by second brake (6), and differential case output shaft (12) is connected with the live axle of feed water pump (4);
First input shaft (14) of described differential case (3) and the ring gear (10) of planetary mechanism are connected, ring gear (10) is connected with planet carrier (9), and second input shaft (7) of described differential case (3) is connected with planet carrier (9) by gear (8);
Planet carrier (9) is connected with sun gear (13), and sun gear (13) is connected with the live axle of feed water pump (4) by differential case output shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164180.2U CN203796538U (en) | 2014-04-04 | 2014-04-04 | Double-drive acceleration type speed regulation device for large-flow water feed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164180.2U CN203796538U (en) | 2014-04-04 | 2014-04-04 | Double-drive acceleration type speed regulation device for large-flow water feed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796538U true CN203796538U (en) | 2014-08-27 |
Family
ID=51378755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420164180.2U Expired - Fee Related CN203796538U (en) | 2014-04-04 | 2014-04-04 | Double-drive acceleration type speed regulation device for large-flow water feed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883509A (en) * | 2014-04-04 | 2014-06-25 | 中国重型机械研究院股份公司 | High-flow feed pump double-driving speed increasing type speed regulating system |
| CN108488328A (en) * | 2018-03-25 | 2018-09-04 | 大连碧蓝节能环保科技有限公司 | Twin shaft input planet gear differential deceleration system |
-
2014
- 2014-04-04 CN CN201420164180.2U patent/CN203796538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883509A (en) * | 2014-04-04 | 2014-06-25 | 中国重型机械研究院股份公司 | High-flow feed pump double-driving speed increasing type speed regulating system |
| CN108488328A (en) * | 2018-03-25 | 2018-09-04 | 大连碧蓝节能环保科技有限公司 | Twin shaft input planet gear differential deceleration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103883509A (en) | High-flow feed pump double-driving speed increasing type speed regulating system | |
| JP2013527895A (en) | Power plant line with variable speed pump | |
| CN209250419U (en) | A kind of mechatronics integration speed-regulating system | |
| US9995281B2 (en) | Drive and method for operating such a drive | |
| CN203796538U (en) | Double-drive acceleration type speed regulation device for large-flow water feed pump | |
| CN103742620B (en) | A kind of high-power mechanical-electrical integral intelligent arrangements for speed regulation | |
| CN103644279B (en) | A kind of constant speed output gear case for wind power generating set | |
| CN104196683A (en) | Wind and electricity compensatory wind energy comprehensively-utilizing system and control method thereof | |
| CN102182626A (en) | Coaxial double-wind-wheel wind turbine | |
| CN203770574U (en) | Constant-speed output gearbox for wind turbine generator system | |
| CN204300275U (en) | Hydraulic pressure and the two speed change regulated of servomotor input constant speed output device | |
| CN104029594A (en) | High-power combined type stepless speed regulating energy conservation power system | |
| CN106321363A (en) | Mechanical-hydraulic hybrid-driven wind driven generator set | |
| CN208122994U (en) | A kind of compact controllable power generation device from sea current | |
| CN102817798A (en) | Wind power and electric power complementary power balanced output system | |
| CN104481809A (en) | Flow division type wind power generation device | |
| CN201787006U (en) | Soft start transmission device | |
| CN202065438U (en) | Multifunctional hydraulic coupling | |
| CN204061082U (en) | A kind of pump drive system | |
| CN101546982B (en) | Power generating set outputting at fixed rotating speed | |
| CN204408093U (en) | A kind of hydraulic drive generating equipment | |
| CN207554727U (en) | A kind of dynamical system | |
| CN203781727U (en) | Variable frequency speed regulation control device for mining conveying winch | |
| CN204226106U (en) | A kind of wind-driven generator | |
| CN203584761U (en) | Electric water feeding pump system with frequency-conversion speed regulation of gearbox |
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: 20140827 Termination date: 20170404 |