CN204061082U - A kind of pump drive system - Google Patents
A kind of pump drive system Download PDFInfo
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- CN204061082U CN204061082U CN201420490849.7U CN201420490849U CN204061082U CN 204061082 U CN204061082 U CN 204061082U CN 201420490849 U CN201420490849 U CN 201420490849U CN 204061082 U CN204061082 U CN 204061082U
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- Prior art keywords
- regulating device
- output shaft
- water pump
- hydraulic
- hydraulic speed
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 8
- 150000002978 peroxides Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of pump drive system.Described pump drive system comprises: steam turbine, split axle gear-box, the first hydraulic speed-regulating device, the second hydraulic speed-regulating device, the first water pump and the second water pump; Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine, and described first output shaft is connected with described first hydraulic speed-regulating device, and described second output shaft is connected with described second hydraulic speed-regulating device; The output shaft of described first hydraulic speed-regulating device is connected with described first water pump; The output shaft of described second hydraulic speed-regulating device is connected with described second water pump.The pump drive system that theres is provided of the utility model is provided, does not need to introduce motor to drive water pump, can save electricity, thus using electricity wisely cost.
Description
Technical field
The utility model relates to actuation techniques field, particularly relates to a kind of pump drive system.
Background technique
Feed water pump generally can be used in thermal power plant, and feed water pump is used for, having uniform temperature, feedwater except peroxide, flowing to boiler, to meet the needs of boiler feed water after improving pressure.Feed water pump will realize normal operation, just needs drive system to drive.
In current technology, the mode of general employing motoring feed water pump realizes the driving to feed water pump.But the mode of motoring feed water pump, can increase extra power consumption, directly causes the increase of electric cost.
In prior art, generally need two motors, every platform motoring feed water pump, feed water pump is used for, having uniform temperature, feedwater except peroxide, flowing to boiler, to meet the needs of boiler feed water after improving pressure.
But, in prior art, by the mode of motoring feed water pump, extra power consumption can be increased, directly cause the increase of electric cost.
In prior art, also there is the system that another drives feed water pump, refer to Fig. 2, Fig. 2 is the structural drawing of another pump drive system in prior art.As shown in Figure 2, this system comprises:
Small turbine 21, and feed water pump 22.
In prior art, general need two small turbines, every platform small turbine drives a feed water pump, and feed water pump is used for, having uniform temperature, feedwater except peroxide, flowing to boiler, to meet the needs of boiler feed water after improving pressure.
But in prior art, small turbine drives the system of feed water pump, complicated structure, the later stage needs often to safeguard to avoid system malfunctions, affects manufacturing efficiency.
For this reason, the utility model provides a kind of new pump drive system, to solve problem existing in above-mentioned prior art.Specifically refer to following embodiment.
Model utility content
In view of this, the utility model provides a kind of pump drive system, in order to directly to drive water pump by steam turbine of the prior art, does not need to introduce motor to drive water pump, can save electricity, thus using electricity wisely cost.
For achieving the above object, the utility model provides following technological scheme:
A kind of pump drive system, comprising:
Steam turbine, split axle gear-box, the first hydraulic speed-regulating device, the second hydraulic speed-regulating device, the first water pump and the second water pump;
Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine, and described first output shaft is connected with described first hydraulic speed-regulating device, and described second output shaft is connected with described second hydraulic speed-regulating device;
The output shaft of described first hydraulic speed-regulating device is connected with described first water pump;
The output shaft of described second hydraulic speed-regulating device is connected with described second water pump.
Preferably, described steam turbine is power station main steam turbine.
Preferably, described first hydraulic speed-regulating device comprises the first hydraulic couplers.
Preferably, described first hydraulic speed-regulating device also comprises:
First step-up gear; The output shaft of described first step-up gear is connected with the input shaft of described first hydraulic couplers.
Preferably, described second hydraulic speed-regulating device comprises the second hydraulic couplers.
Preferably, described second hydraulic speed-regulating device also comprises:
Second step-up gear; The output shaft of described second step-up gear is connected with the input shaft of described second hydraulic couplers.
Preferably, the input shaft of described split axle gear-box is connected with the rear axle of described steam turbine, and the front axle of described steam turbine is connected with main generator.
Preferably, the first output shaft of described split axle gear-box is connected with the input shaft of described first hydraulic speed-regulating device;
Second output shaft of described split axle gear-box is connected with the input shaft of described second hydraulic speed-regulating device.
Preferably, described split axle gear-box is the gear-box that described first output shaft rotating speed is equal with the second output shaft rotating speed.
Preferably, described first hydraulic speed-regulating device and described second hydraulic speed-regulating device are two hydraulic speed-regulating devices that output speed is equal.
Known via above-mentioned technological scheme, compared with prior art, the utility model provides a kind of pump drive system.The pump drive system that the utility model provides, comprises steam turbine, split axle gear-box, the first hydraulic speed-regulating device, the second hydraulic speed-regulating device, the first water pump and the second water pump; Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine, and described first output shaft is connected with described first hydraulic speed-regulating device, and described second output shaft is connected with described second hydraulic speed-regulating device; The output shaft of described first hydraulic speed-regulating device is connected with described first water pump; The output shaft of described second hydraulic speed-regulating device is connected with described second water pump.The pump drive system that the utility model provides, water pump is driven by hydraulic speed-regulating device, the operation power of hydraulic speed-regulating device is from split axle gear-box, split axle gear-box is driven by steam turbine and realizes running, finally be equivalent to steam turbine to drive water pump, and steam turbine is the device that power station drives main generator.Therefore, the technological scheme that the utility model provides, drives water pump by steam turbine of the prior art, does not need to introduce motor to drive water pump, can save electricity, thus using electricity wisely cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment 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 the accompanying drawing provided.
Fig. 1 is the structural drawing of a kind of pump drive system in prior art;
Fig. 2 is the structural drawing of another pump drive system in prior art;
The structural drawing of a kind of pump drive system that Fig. 3 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological 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, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail prior art and the utility model below in conjunction with the drawings and specific embodiments.
Refer to Fig. 1, Fig. 1 is the structural drawing of a kind of pump drive system in prior art.As shown in Figure 1, this system comprises:
Motor 11, and feed water pump 12.
Embodiment
Refer to Fig. 3, the structural drawing of a kind of pump drive system that Fig. 3 provides for the utility model embodiment.As shown in Figure 3, the pump drive system that the utility model embodiment provides, comprising:
Steam turbine 31, split axle gear-box 32, first hydraulic speed-regulating device 33, second hydraulic speed-regulating device 34, first water pump 35 and the second water pump 36;
Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine 31, and described first output shaft is connected with described first hydraulic speed-regulating device 33, and described second output shaft is connected with described second hydraulic speed-regulating device 34;
The output shaft of described first hydraulic speed-regulating device 33 is connected with described first water pump 35;
The output shaft of described second hydraulic speed-regulating device 34 is connected with described second water pump 36.
Concrete, the pump drive system that the utility model embodiment provides, described steam turbine 31 is power station main steam turbine.
Concrete, the pump drive system that the utility model embodiment provides, described first water pump 35 and described second water pump 36 are all feed water pump.
Concrete, the input shaft of described split axle gear-box 32 is connected with the rear axle of described steam turbine 31, and the front axle of described steam turbine 31 is connected with main generator.The front axle of described steam turbine 31 is connected with main generator, and for driving main generator to generate electricity, the input shaft of described split axle gear-box 32 is connected with the rear axle of described steam turbine 31, realizes main generator, steam turbine 31 is coaxially connected with split axle gear-box 32.Main steam turbine drives main generator generating to be technology ripe at present, and the power that when the utility model is intended to run by steamer main in prior art, rear axle rotates, drives feed water pump.Generally, one, power station unit needs outfit 2 feed water pumps, and a unit only has a main steam turbine, so need increase by have the split axle gear-box 32 of two output shafts, in order to drive 2 feed water pump work simultaneously.
Concrete, the first output shaft of described split axle gear-box 32 is connected with the input shaft of described first hydraulic speed-regulating device 33;
Second output shaft of described split axle gear-box 32 is connected with the input shaft of described second hydraulic speed-regulating device 34.Like this, by described split axle gear-box 32, just can realize described first hydraulic speed-regulating device 33 to be connected with described steam turbine 31, the output shaft of described first hydraulic speed-regulating device 33 is connected with described first water pump 35, finally realize described first water pump 35 to be connected with described steam turbine 31, thus realize steam turbine 31 and drive the first water pump 35; Same, by described split axle gear-box 32, just can realize described second hydraulic speed-regulating device 34 to be connected with described steam turbine 31, the output shaft of described second hydraulic speed-regulating device 34 is connected with described second water pump 36, finally realize described second water pump 36 to be connected with described steam turbine 31, thus realize steam turbine 31 and drive the second water pump 36.
Concrete, the pump drive system that the utility model embodiment provides, described first hydraulic speed-regulating device 33 comprises the first hydraulic couplers.Hydraulic couplers carries out Energy Transfer by liquid medium, makes the transmission of energy more stable.
Further, the pump drive system that the utility model embodiment provides, described first hydraulic speed-regulating device 33 also comprises:
First step-up gear; The input shaft of described first step-up gear is connected with the first output shaft of described split axle gear-box 32; The output shaft of described first step-up gear is connected with the input shaft of described first hydraulic couplers; The output shaft of described first hydraulic couplers is connected with described first water pump 35.Described first step-up gear, in order to realize adjusting the rotating speed of described split axle gear-box 32 first output shaft, the rotating speed of described split axle gear-box 32 first output shaft is increased by described first step-up gear, namely the input shaft rotating speed of the first hydraulic couplers is increased, thus increase the first hydraulic couplers output shaft rotating speed, make the output shaft rotating speed of the first hydraulic couplers (described first hydraulic speed-regulating device 33) meet the requirement of described first water pump 35 pairs of input shaft rotating speeds.
Concrete, the pump drive system that the utility model embodiment provides, described second hydraulic speed-regulating device 34 comprises the second hydraulic couplers.Hydraulic couplers carries out Energy Transfer by liquid medium, makes the transmission of energy more stable.
Further, the pump drive system that the utility model embodiment provides, described second hydraulic speed-regulating device 34 also comprises:
Second step-up gear; The input shaft of described second step-up gear is connected with the second output shaft of described split axle gear-box 32; The output shaft of described second step-up gear is connected with the input shaft of described second hydraulic couplers; The output shaft of described second hydraulic couplers is connected with described second water pump 36.Described second step-up gear, in order to realize adjusting the rotating speed of described split axle gear-box 32 second output shaft, the rotating speed of described split axle gear-box 32 second output shaft is increased by described second step-up gear, namely the input shaft rotating speed of the second hydraulic couplers is increased, thus increase the second hydraulic couplers output shaft rotating speed, make the output shaft rotating speed of the second hydraulic couplers (described second hydraulic speed-regulating device 34) meet the requirement of described second water pump 36 pairs of input shaft rotating speeds.
Concrete, the pump drive system that the utility model embodiment provides, optionally, described split axle gear-box 32 is the gear-box that described first output shaft rotating speed is equal with the second output shaft rotating speed.That is, described steam turbine 31 drives the input shaft of described split axle gear-box 32, and after described split axle gear-box 32 accepts driving, entry into service, the rotating speed of the first output shaft of split axle gear-box 32 is equal with the rotating speed of the second output shaft.
Concrete, the pump drive system that the utility model embodiment provides, optionally, described first hydraulic speed-regulating device 33 and described second hydraulic speed-regulating device 34 are two hydraulic speed-regulating devices that output speed is equal.In particular, the ratio of described first step-up gear input shaft rotating speed and output shaft rotating speed, equals the ratio of described second step-up gear input shaft rotating speed and output shaft rotating speed.Again because the described first output shaft rotating speed of described split axle gear-box 32 is equal with the second output shaft rotating speed, therefore, the output shaft rotating speed of described first step-up gear is equal with described second step-up gear output shaft rotating speed, thus the output shaft rotating speed of the output shaft rotating speed of described first hydraulic couplers and described second hydraulic couplers is equal, namely the output speed of described first hydraulic speed-regulating device 33 and described second hydraulic speed-regulating device 34 is equal.The output shaft of described first hydraulic speed-regulating device 33 is connected with described first water pump 35, the output shaft of described second hydraulic speed-regulating device 34 is connected with described second water pump 36, thus it is equal with the driving force of the second hydraulic speed-regulating device 34 to the second water pump 36 to the driving force of the first water pump 35 to realize the first hydraulic speed-regulating device 33, first water pump 35 and the second water pump 36, optionally, for the feed water pump of identical configuration, finally can realize the driving force of described steam turbine 31 to the first water pump 35 and the second water pump 36 equal, i.e. when two water pumps are all opened (full load operation), when steam turbine 31 normally runs, the water output of boiler of power plant water circulation 50% born separately by first water pump 35 and the second water pump 36, if only open the first water pump 35 or the second water pump 36 (half capacity operation), when steam turbine 31 normally runs, 50% of the water pump supply boiler water of electric power plant cycling use of water amount be unlocked.
It should be noted that, the technological scheme that application the utility model provides, power station main steam turbine is needed normally to run, before main steam turbine does not normally run, optionally, the electrically driven feedpump first starting 25% load (boiler of power plant water circulation 25% water output) is that boiler water cycle supplies water, when main steam turbine normally runs, main steam turbine can drive the first water pump 35 and the second water pump 36, now closes electrically driven feedpump, implements technological scheme provided by the utility model smoothly.
Known via above-mentioned technological scheme, compared with prior art, the utility model provides a kind of pump drive system.The pump drive system that the utility model provides, comprises steam turbine, split axle gear-box, the first hydraulic speed-regulating device, the second hydraulic speed-regulating device, the first water pump and the second water pump; Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine, and described first output shaft is connected with described first hydraulic speed-regulating device, and described second output shaft is connected with described second hydraulic speed-regulating device; The output shaft of described first hydraulic speed-regulating device is connected with described first water pump; The output shaft of described second hydraulic speed-regulating device is connected with described second water pump.The pump drive system that the utility model provides, water pump is driven by hydraulic speed-regulating device, the operation power of hydraulic speed-regulating device is from split axle gear-box, split axle gear-box is driven by steam turbine and realizes running, finally be equivalent to steam turbine to drive water pump, and steam turbine is the device that power station drives main generator.Therefore, the technological scheme that the utility model provides, drives water pump by steam turbine of the prior art, does not need to introduce motor to drive water pump, can save electricity, thus using electricity wisely cost.
In addition, the technological scheme that the utility model provides, water pump is driven by power station of the prior art main steam turbine, do not need to adopt the mode of another driving water pump in prior art, namely small turbine drives feed water pump, thus small turbine can be avoided to drive the system of feed water pump, complicated structure, the later stage needs the problem often safeguarded.The technological scheme that the utility model provides, does not need to purchase small turbine, does not just need often to safeguard small turbine yet, thus can reduce purchase cost and later maintenance cost.
In addition, the technological scheme that the utility model provides, improves the comprehensive utilization efficiency of main steam turbine, and structure is simple, and later maintenance cost is low.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a pump drive system, is characterized in that, comprising:
Steam turbine, split axle gear-box, the first hydraulic speed-regulating device, the second hydraulic speed-regulating device, the first water pump and the second water pump;
Described split axle gear-box comprises input shaft, the first output shaft and the second output shaft; Wherein, the input shaft of described split axle gear-box is connected with described steam turbine, and described first output shaft is connected with described first hydraulic speed-regulating device, and described second output shaft is connected with described second hydraulic speed-regulating device;
The output shaft of described first hydraulic speed-regulating device is connected with described first water pump;
The output shaft of described second hydraulic speed-regulating device is connected with described second water pump.
2. pump drive system according to claim 1, is characterized in that, described steam turbine is power station main steam turbine.
3. pump drive system according to claim 1, is characterized in that, described first hydraulic speed-regulating device comprises the first hydraulic couplers.
4. pump drive system according to claim 3, is characterized in that, described first hydraulic speed-regulating device also comprises:
First step-up gear; The output shaft of described first step-up gear is connected with the input shaft of described first hydraulic couplers.
5. pump drive system according to claim 1, is characterized in that, described second hydraulic speed-regulating device comprises the second hydraulic couplers.
6. pump drive system according to claim 5, is characterized in that, described second hydraulic speed-regulating device also comprises:
Second step-up gear; The output shaft of described second step-up gear is connected with the input shaft of described second hydraulic couplers.
7. pump drive system according to claim 1, is characterized in that, the input shaft of described split axle gear-box is connected with the rear axle of described steam turbine, and the front axle of described steam turbine is connected with main generator.
8. pump drive system according to claim 1, is characterized in that, the first output shaft of described split axle gear-box is connected with the input shaft of described first hydraulic speed-regulating device;
Second output shaft of described split axle gear-box is connected with the input shaft of described second hydraulic speed-regulating device.
9. pump drive system according to claim 1, is characterized in that, described split axle gear-box is the gear-box that described first output shaft rotating speed is equal with the second output shaft rotating speed.
10. pump drive system according to claim 1, is characterized in that, described first hydraulic speed-regulating device and described second hydraulic speed-regulating device are two hydraulic speed-regulating devices that output speed is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490849.7U CN204061082U (en) | 2014-08-28 | 2014-08-28 | A kind of pump drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490849.7U CN204061082U (en) | 2014-08-28 | 2014-08-28 | A kind of pump drive system |
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| Publication Number | Publication Date |
|---|---|
| CN204061082U true CN204061082U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420490849.7U Expired - Lifetime CN204061082U (en) | 2014-08-28 | 2014-08-28 | A kind of pump drive system |
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| CN (1) | CN204061082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332088A (en) * | 2019-07-10 | 2019-10-15 | 神华（福建）能源有限责任公司 | New Feedwater Pump System and Its Operation Method |
| CN114391453A (en) * | 2022-01-07 | 2022-04-26 | 承德石油高等专科学校 | New forms of energy farmland irrigation equipment |
-
2014
- 2014-08-28 CN CN201420490849.7U patent/CN204061082U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332088A (en) * | 2019-07-10 | 2019-10-15 | 神华（福建）能源有限责任公司 | New Feedwater Pump System and Its Operation Method |
| CN114391453A (en) * | 2022-01-07 | 2022-04-26 | 承德石油高等专科学校 | New forms of energy farmland irrigation equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |