CN209369996U - Feed pump with arrangement of clutch - Google Patents
Feed pump with arrangement of clutch Download PDFInfo
- Publication number
- CN209369996U CN209369996U CN201821854813.7U CN201821854813U CN209369996U CN 209369996 U CN209369996 U CN 209369996U CN 201821854813 U CN201821854813 U CN 201821854813U CN 209369996 U CN209369996 U CN 209369996U
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- Prior art keywords
- feed pump
- magnetic disk
- speed
- steam turbine
- adjusting
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Control Of Turbines (AREA)
Abstract
The utility model discloses a kind of feed pumps with arrangement of clutch, including steam turbine, speed-adjusting-type permanent-magnet shaft coupling, feed pump and PLC control cabinet；The speed-adjusting-type permanent-magnet shaft coupling includes permanent magnetic disk, conductor disc and actuator；Steam turbine is connected with feed pump by speed-adjusting-type permanent-magnet shaft coupling, and PLC control cabinet is electrically connected with steam turbine and actuator respectively；Without mechanical connection between permanent magnetic disk and conductor disc；Actuator is electrically connected with permanent magnetic disk.The utility model has the following beneficial effects: (1) the utility model can be avoided feed pump abrasion and the phenomenon that axis occurs, power consumption (2) speed-adjusting-type permanent-magnet shaft coupling that feed pump rotation generates when can be avoided jiggering simultaneously does not need the consumption energy, without mechanical connection, centering requires low, non-conducting vibration, structure is simple, no maintenance cost, meanwhile improving equipment operating efficiency and stability；(3) high degree of automation is operated without personnel.
Description
Technical field
The utility model relates to field of mechanical technique, can be improved equipment operating efficiency and stabilization more particularly, to one kind
Property, reduce power consumption, at low cost, the feed pump with arrangement of clutch of high degree of automation.
Background technique
China's thermal power generation accounts for the 70% of national generating capacity, and in thermal power generation unit, boiler feed pump is in unit
Important equipment, and power consumption is big, drags feed pump using steam turbine, can effectively reduce station service power consumption rate, increases outer power supply volume, mention
High economy of power plant benefit, therefore existing fired power generating unit mostly uses greatly feed pump.
The steam turbine of driving device as feed pump, Ying Jinliang are avoided in starting, stopping process or after shutting down,
The thermal bending deformation that rotor each section is generated by heated and inhomogeneous cooling, therefore, steam turbine before activation be both needed to after shutdown
Jiggering is carried out, turbine rotor thermally equivalent and cooling are made, while reducing the temperature difference of upper and lower cylinder, it is ensured that steam turbine operation
It is safe and reliable；And boiler feed pump is not a manufacturer deems that feed pump needs jiggering, low speed jiggering will cause feed pump abrasion and card
Axis phenomenon, turbine rotor and water supply pump rotor are connected by flexible coupling, can not disengage rotor in jiggering, since
Jiggering is wanted, is greater than 120rpm in order to avoid female footballer is impacted or increased to feed pump or improves barring speed,
Increase the maintenance that female footballer needs input cost and later period, turning motor power, both the above need to be increased by improving barring speed
Method causes cost increase and energy waste, and especially existing industrial steam turbine revolving speed can reach 8000rpm, and dragging is given
Water pump also needs that speed reducer is arranged, to cause turning motor more powerful, increases power consumption.
Utility model content
The utility model causes the deficiency of energy waste, provides to overcome equipment cost existing in the prior art high
One kind can be improved equipment operating efficiency and stability, reduces power consumption, at low cost, high degree of automation with arrangement of clutch
Feed pump.
To achieve the goals above, the utility model uses following technical scheme:
A kind of feed pump with arrangement of clutch, including steam turbine, speed-adjusting-type permanent-magnet shaft coupling, feed pump and PLC control
Cabinet；The speed-adjusting-type permanent-magnet shaft coupling includes permanent magnetic disk, conductor disc and actuator；Steam turbine and feed pump pass through speed-adjusting-type permanent-magnet
Shaft coupling connection, PLC control cabinet are electrically connected with steam turbine and actuator respectively；Without mechanical connection between permanent magnetic disk and conductor disc；
Actuator is electrically connected with permanent magnetic disk.
Without mechanical connection between the conductor disc and permanent magnetic disk of the utility model, permanent magnetic disk is controlled by actuator and is led to change
Air gap between body disc and permanent magnetic disk avoids causing shadow to feed pump, it can be achieved that clutch between steam turbine and water supply pump rotor
Ring, speed-adjusting-type permanent-magnet shaft coupling can carry out the adjusting of the output torque between 0-100%, realize between steam turbine and feed pump from
It closes.
Preferably, between the permanent magnetic disk and conductor disc, there are air gaps；0- may be implemented by adjusting the size of air gap
Output torque between 100% is adjusted.
Preferably, permanent magnetic disk is located at feed pump shaft end；Conductor disc is located at steam turbine shaft end.
Preferably, the left end of conductor disc and right end are equipped with opening；The length of left end opening is less than the length of right-end openings
Degree；Convenient for the installation and movement of permanent magnetic disk.
Preferably, the left end opening of conductor disc is equipped with fixed column；For fixed conductor disk.
Therefore, the utility model has the following beneficial effects: when (1) Turbine Barring Gears, speed-adjusting-type permanent-magnet shaft coupling can be real
The disengagement of existing steam turbine and feed pump, avoids feed pump from wearing and the phenomenon that axis occur, feed pump does not need female footballer, vapour
Turbine does not need high speed jiggering, and barring speed is not influenced by feed pump, while feed pump rotation generates when can be avoided jiggering
Power consumption has saved cost, reduces energy consumption, becomes apparent to the feed pump energy-saving effect for being equipped with deceleration mechanism；(2) speed-regulating type is forever
Magnet coupler does not need the consumption energy, and no mechanical connection, centering requirement is low, and non-conducting vibration, structure is simple, no maintenance cost,
Meanwhile improving equipment operating efficiency and stability；(3) high degree of automation is operated without personnel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
In figure: steam turbine 1, speed-adjusting-type permanent-magnet shaft coupling 2, feed pump 3, PLC control cabinet 4, turning motor 5, permanent magnetic disk 21,
Conductor disc 22, actuator 23, air gap 24.
Specific embodiment
The utility model is described further with specific embodiment with reference to the accompanying drawing:
Embodiment as shown in Figure 1 is a kind of feed pump with arrangement of clutch, including steam turbine 1, speed-adjusting-type permanent-magnet shaft coupling
Device 2, feed pump 3 and PLC control cabinet 4；The speed-adjusting-type permanent-magnet shaft coupling includes permanent magnetic disk 21, conductor disc 22 and actuator 23；
Steam turbine is connected with feed pump by speed-adjusting-type permanent-magnet shaft coupling, and PLC control cabinet is electrically connected with steam turbine and actuator respectively；Forever
Without mechanical connection between disk and conductor disc, there are air gaps 24 between permanent magnetic disk and conductor disc；Actuator is electrically connected with permanent magnetic disk.
Wherein, the feed pump is steam feed pump；The permanent magnetic disk provides magnetic field for speed-adjusting-type permanent-magnet shaft coupling；It is described
The magnetic field that conductor disc is used to cut permanent magnetic disk generates eddy current, and eddy current generates induced magnetic field, induced magnetic field and permanent magnetic disk
The power for making the two relative motion is generated between magnetic field, to realize the transmitting of torque；Permanent magnetic disk is located at feed pump shaft end；It leads
Body disc is located at steam turbine shaft end；The left end of conductor disc and right end are equipped with opening；The length of left end opening is less than right-end openings
Length；The left end opening of conductor disc is equipped with fixed column.
The course of work of the utility model is as follows:
The turning motor 5 of steam turbine provides rotational power, the jiggering electricity of steam turbine for the starting of steam turbine and stopping process
The control signal of machine and the control signal of actuator are chain each other in PLC control cabinet, when the starting of the turning motor of steam turbine,
PLC control cabinet controls permanent magnetic disk movement by control actuator, and the air gap between conductor disc and permanent magnetic disk is adjusted to maximum,
The output torque of speed-adjusting-type permanent-magnet shaft coupling is 0, is disengaged between steam turbine and steam feed pump；When turning motor stops, PLC
Control cabinet controls permanent magnetic disk movement by control actuator, and the air gap between conductor disc and permanent magnetic disk is adjusted to minimum, is adjusted
Fast type permanent magnet clutch output torque is 100%；Steam feed pump is when operating normally at the air gap of speed-adjusting-type permanent-magnet shaft coupling
In minimum position, output torque 100%；Since steam turbine has speed-regulating system, so speed-adjusting-type permanent-magnet shaft coupling is according to steam-operating
The maximum power of feed pump designs, while to avoid steam turbine from flogging a dead horse, actuator design torque exports 0 and 100% liang
A regulation stall.
It should be understood that the present embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.Furthermore
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (5)
1. a kind of feed pump with arrangement of clutch, which is characterized in that including steam turbine (1), speed-adjusting-type permanent-magnet shaft coupling (2), give
Water pump (3) and PLC control cabinet (4)；The speed-adjusting-type permanent-magnet shaft coupling includes permanent magnetic disk (21), conductor disc (22) and actuator
(23)；Steam turbine is connected with feed pump by speed-adjusting-type permanent-magnet shaft coupling, and PLC control cabinet is electrically connected with steam turbine and actuator respectively
It connects；Without mechanical connection between permanent magnetic disk and conductor disc；Actuator is electrically connected with permanent magnetic disk.
2. the feed pump according to claim 1 with arrangement of clutch, which is characterized in that between the permanent magnetic disk and conductor disc
There are air gap (24).
3. the feed pump according to claim 1 with arrangement of clutch, which is characterized in that permanent magnetic disk is located at feed pump shaft end；
Conductor disc is located at steam turbine shaft end.
4. the feed pump according to claim 1 with arrangement of clutch, which is characterized in that the left end of conductor disc and right end are all provided with
There is opening；The length of left end opening is less than the length of right-end openings.
5. the feed pump according to claim 1 with arrangement of clutch, which is characterized in that the left end opening of conductor disc is equipped with
Fixed column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854813.7U CN209369996U (en) | 2018-11-12 | 2018-11-12 | Feed pump with arrangement of clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854813.7U CN209369996U (en) | 2018-11-12 | 2018-11-12 | Feed pump with arrangement of clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209369996U true CN209369996U (en) | 2019-09-10 |
Family
ID=67836042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821854813.7U Active CN209369996U (en) | 2018-11-12 | 2018-11-12 | Feed pump with arrangement of clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209369996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452527A (en) * | 2022-01-26 | 2022-05-10 | 苏州心擎医疗技术有限公司 | Device for assisting the heart in the occurrence of functional failure |
-
2018
- 2018-11-12 CN CN201821854813.7U patent/CN209369996U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452527A (en) * | 2022-01-26 | 2022-05-10 | 苏州心擎医疗技术有限公司 | Device for assisting the heart in the occurrence of functional failure |
| CN114452527B (en) * | 2022-01-26 | 2023-04-25 | 苏州心擎医疗技术有限公司 | Device for assisting heart in the event of failure |
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