CN204175343U - Feed water pump constant speed small turbine Driven by Coaxial electricity generating device - Google Patents
Feed water pump constant speed small turbine Driven by Coaxial electricity generating device Download PDFInfo
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- CN204175343U CN204175343U CN201420581049.6U CN201420581049U CN204175343U CN 204175343 U CN204175343 U CN 204175343U CN 201420581049 U CN201420581049 U CN 201420581049U CN 204175343 U CN204175343 U CN 204175343U
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Abstract
The utility model discloses a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device.Described device comprises: feed water pump, constant speed small turbine, arrangements for speed regulation, gear-box and generator; Described feed water pump is connected with the output shaft of described arrangements for speed regulation; Described constant speed small turbine is connected with the input shaft of described arrangements for speed regulation; The input shaft of described gear-box is connected with described constant speed small turbine; The output shaft of described gear-box is connected with described generator.The feed water pump constant speed small turbine Driven by Coaxial electricity generating device provided of the present utility model is provided, the effective utilization to described constant speed small turbine extra margin (load) can be realized, effectively avoid the problem driving the load waste caused in the process of feed water pump in prior art at constant speed small turbine.
Description
Technical field
The utility model relates to power generating equipment technical field, particularly relates to a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device.
Background technique
Electric power is the energy using electric energy as power.Invent in 19 century 70s, the invention of electric power and application have started second time industrialization climax.Since becoming 18th century of human history, one of three scientific and technological revolutions that the world occurs, from then on science and technology changes the life of people.The large-scale electrical power system that 20th century occurred is one of most important achievement in the human engineering history of science, the electrical production be made up of links such as generating, transmission of electricity, power transformation, distribution and electricity consumptions and consume system.Natural primary energy is changed into electric power by mechanical energy device by it, then supplies power to each user through transmission of electricity, power transformation and distribution.Be the epoch of internet now, we still have the demand of sustainable growth to electric power, because we have invented the product of more use electric power such as computer, household electrical appliances.Constantly the occurring of undeniable new technology makes electric power become the necessity of people.
At present, generally generated electricity by power station, then electricity is delivered to electrical network.Power station watering cycle can use feed water pump, generation current factory generally uses constant speed small turbine to add arrangements for speed regulation and drives feed water pump, namely one end of the axle of constant speed small turbine connects arrangements for speed regulation, drive feed water pump through arrangements for speed regulation, what mainly solve is the problem driving the expense electricity caused by feed water pump with motor.
But in current technology, the constant speed small turbine run due to power plant generally all has extra margin, in running, seldom meeting overload operation, therefore can cause load to waste, thus cause the waste of the energy.
In prior art, power plant generally uses constant speed small turbine to add arrangements for speed regulation and drives feed water pump, and namely an axle of constant speed small turbine drives feed water pump by arrangements for speed regulation, and what mainly solve is the problem of expense electricity driving feed water pump to bring with motor.
In current technology, power station constant speed small turbine adds arrangements for speed regulation and drives feed water pump generally all can use a constant speed small turbine exceeding feed water pump rated load, but feed water pump can not exceed its rated load in actual application, and seldom rated load can be reached.
Therefore, the constant speed small turbine that power plant runs generally all has extra margin, and in running, seldom meeting overload operation, therefore can cause load to waste, thus cause the waste of the energy.
For this reason, the utility model provides a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device, in order to realize the effective utilization to described constant speed small turbine extra margin (load), can effectively avoid adding at constant speed small turbine the problem that arrangements for speed regulation drive the load waste caused in the process of feed water pump in prior art.
The feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model provides, comprising:
Feed water pump, constant speed small turbine, arrangements for speed regulation, gear-box and generator;
Described feed water pump is connected with the output shaft of described arrangements for speed regulation;
Described constant speed small turbine is connected with the input shaft of described arrangements for speed regulation;
The input shaft of described gear-box is connected with described constant speed small turbine;
The output shaft of described gear-box is connected with described generator.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described constant speed small turbine, optionally, comprises back pressure type constant speed small turbine.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described constant speed small turbine, optionally, comprises condensed steam type constant speed small turbine.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described constant speed small turbine is provided with admission line.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described arrangements for speed regulation optionally, are speed governing epicyclic gearbox.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described gear-box optionally, is step-up gear, or speed governing epicyclic gearbox.
Concrete, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, described generator connects electrical network by transformer, or directly connects electrical network.Or, the electricity that described generator sends, the power plant equipment such as Direct driver blower fan, induced draught fan and condensate pump.
Specifically refer to the content of following the utility model specific embodiment.
Model utility content
In view of this, the utility model provides a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device, in order to realize the effective utilization to described constant speed small turbine extra margin (load), the problem driving the load waste caused in the process of feed water pump in prior art at constant speed small turbine effectively can be avoided.
For achieving the above object, the utility model provides following technological scheme:
A kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device, comprising:
Feed water pump, constant speed small turbine, arrangements for speed regulation, gear-box and generator;
Described feed water pump is connected with the output shaft of described arrangements for speed regulation;
Described constant speed small turbine is connected with the input shaft of described arrangements for speed regulation;
The input shaft of described gear-box is connected with described constant speed small turbine;
The output shaft of described gear-box is connected with described generator.
Preferably, described constant speed small turbine is back pressure type constant speed small turbine.
Preferably, described constant speed small turbine is condensed steam type constant speed small turbine.
Preferably, described constant speed small turbine is provided with admission line.
Preferably, the input shaft of described arrangements for speed regulation is connected with the first axle head of described constant speed small turbine, and the input shaft of described gear-box is connected with the second axle head of described constant speed small turbine.
Preferably, the input shaft of described arrangements for speed regulation is connected with described constant speed small turbine by described generator, described gear-box.
Preferably, the input shaft of described gear-box is connected with described constant speed small turbine by described feed water pump, described arrangements for speed regulation.
Preferably, described arrangements for speed regulation are speed governing epicyclic gearbox.
Preferably, described gear-box is step-up gear, or speed governing epicyclic gearbox.
Preferably, described generator connects electrical network by transformer, or directly connects electrical network.
Known via above-mentioned technological scheme, compared with prior art, the utility model provides a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device.The feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model provides, adding arrangements for speed regulation at described constant speed small turbine drives on the basis of described feed water pump, the input shaft of described gear-box is connected with described constant speed small turbine, described generator connects the output shaft of described gear-box, thus drive in the process of described feed water pump at described constant speed small turbine by described arrangements for speed regulation, generated electricity by generator described in described gear-box Driven by Coaxial, realize the effective utilization to described constant speed small turbine extra margin (load), effectively can avoid the problem driving the load waste caused in the process of feed water pump in prior art at constant speed small turbine.
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 that in prior art, constant speed small turbine drives feed water pump device;
The structural drawing of a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 2 provides for the utility model embodiment;
The structural drawing of another feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 3 provides for the utility model embodiment;
The structural drawing of another feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 4 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 that in prior art, constant speed small turbine drives feed water pump device.As shown in Figure 1, constant speed small turbine of the prior art drives feed water pump device to comprise:
Constant speed small turbine 11, arrangements for speed regulation 12 and feed water pump 13;
Constant speed small turbine, for power plant's main steam turbine, is generally applied to power station and drives the equipment such as feedwater pump or fan.
Feed water pump refers to the water pump of power station watering cycle.
Embodiment one
Refer to Fig. 2, the structural drawing of a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, comprising:
Feed water pump 21, constant speed small turbine 22, arrangements for speed regulation 23, gear-box 24 and generator 25;
Described feed water pump 21 is connected with the output shaft of described arrangements for speed regulation 23;
The input shaft of described arrangements for speed regulation 23 is connected with the first axle head of described constant speed small turbine 22;
The input shaft of described gear-box 24 is connected with the second axle head of described constant speed small turbine 22;
Described generator 25 is connected with the output shaft of described gear-box 24.
Concrete, the first axle head of described constant speed small turbine 22 refers to the front axle head of described constant speed small turbine 22 or rear axle head; Corresponding, the second axle head of described constant speed small turbine 22 refers to the rear axle head of described constant speed small turbine 22 or front axle head.
Concrete, described gear-box 24 optionally, is step-up gear, or speed governing epicyclic gearbox.If described gear-box 24 is step-up gear, then the output speed of step-up gear is power frequency rotating speed, corresponding, described generator 25 is industrial frequency generator; If described gear-box 24 is speed governing epicyclic gearbox, because the output speed of speed governing epicyclic gearbox is change, corresponding, described generator 25 is frequency conversion generator.If described generator 25 is industrial frequency generator, then the electricity that generator 25 sends directly can deliver to electrical network, or directly for station service, can increase the electricity that electrical network delivered to by power station, increases economic benefit; If described generator 25 is frequency conversion generator, the electricity that then generator 25 sends is variable-frequency electric, directly can not deliver to electrical network, but can be used for the station-service equipment use such as blower fan, induced draught fan and condensate pump, the use of station service can be saved, also be equivalent to increase the electricity that electrical network delivered to by power station, increase economic benefit.
The technological scheme that above-described embodiment one provides, described feed water pump 21 and described arrangements for speed regulation 23 are positioned at one end of described constant speed small turbine 22, and described gear-box 24 and described generator 25 are positioned at the other end of described constant speed small turbine 22.It should be noted that, described feed water pump 21, described arrangements for speed regulation 23, described gear-box 24 and described generator 25 are all positioned at same one end of described constant speed small turbine 22, also can successfully realize goal of the invention of the present utility model.Specifically refer to following specific embodiment two and specific embodiment three.
Embodiment two
Refer to Fig. 3, the structural drawing of another feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 3 provides for the utility model embodiment.As shown in Figure 3, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, comprising:
Feed water pump 21, constant speed small turbine 22, arrangements for speed regulation 23, gear-box 24 and generator 25;
Described feed water pump 21 is connected with the output shaft of described arrangements for speed regulation 23;
The input shaft of described arrangements for speed regulation 23 is connected with described constant speed small turbine by described generator 25, described gear-box 24;
Concrete: the input shaft of described arrangements for speed regulation 23 is connected with the output shaft of described generator 25;
The input shaft of described generator 25 is connected with the output shaft of described gear-box 24;
The input shaft of described gear-box 24 is connected with the first axle head of described constant speed small turbine 22 or the second axle head.
Concrete, the first axle head of described constant speed small turbine 22 refers to the front axle head of described constant speed small turbine 22 or rear axle head; Corresponding, the second axle head of described constant speed small turbine 22 refers to the rear axle head of described constant speed small turbine 22 or front axle head.
Embodiment three
Refer to Fig. 4, the structural drawing of another feed water pump constant speed small turbine Driven by Coaxial electricity generating device that Fig. 4 provides for the utility model embodiment.As shown in Figure 4, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model embodiment provides, comprising:
Feed water pump 21, constant speed small turbine 22, arrangements for speed regulation 23, gear-box 24 and generator 25;
The input shaft of described generator 25 is connected with the output shaft of described gear-box 24;
The input shaft of described gear-box 24 is connected with described constant speed small turbine 22 by described feed water pump 21, described arrangements for speed regulation 23;
Concrete: the input shaft of described gear-box 24 is connected with the output shaft of described feed water pump 21;
The input shaft of described feed water pump 21 is connected with the output shaft of described arrangements for speed regulation 23;
The input shaft of described arrangements for speed regulation 23 is connected with the first axle head of described constant speed small turbine 22 or the second axle head.
Concrete, the first axle head of described constant speed small turbine 22 refers to the front axle head of described constant speed small turbine 22 or rear axle head; Corresponding, the second axle head of described constant speed small turbine 22 refers to the rear axle head of described constant speed small turbine 22 or front axle head.
In order to optimize the technological scheme that the utility model provides further, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model provides, also comprises:
The clutch be connected with the input shaft of described gear-box 24, this clutch the other end is connected with driving the equipment of described gear-box 24.Described clutch is used for, and when keeping in repair described gear-box 24 or described generator 25, cuts off the driving force to described gear-box 24 and described generator 25, convenient for maintaining.
Known via above-mentioned technological scheme, compared with prior art, the utility model provides a kind of feed water pump constant speed small turbine Driven by Coaxial electricity generating device.The feed water pump constant speed small turbine Driven by Coaxial electricity generating device that the utility model provides, adding arrangements for speed regulation at described constant speed small turbine drives on the basis of described feed water pump, the input shaft of described gear-box is connected with described constant speed small turbine, described generator connects the output shaft of described gear-box, thus drive in the process of described feed water pump at described constant speed small turbine by described arrangements for speed regulation, generated electricity by generator described in described gear-box Driven by Coaxial, realize the effective utilization to described constant speed small turbine extra margin (load), effectively can avoid the problem driving the load waste caused in the process of feed water pump in prior art at constant speed small turbine.
Simultaneously, the feed water pump constant speed small turbine Driven by Coaxial electricity generating device that application the utility model provides, the extra margin of described constant speed small turbine can be utilized to generate electricity, the electric energy sent can be used for power plant to use by oneself, and deliver to electrical network, or be supplied to the station-service equipment use such as blower fan, induced draught fan and condensate pump, increase the electricity being sent to electrical network, thus increase economic benefit.
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 feed water pump constant speed small turbine Driven by Coaxial electricity generating device, is characterized in that, comprising:
Feed water pump, constant speed small turbine, arrangements for speed regulation, gear-box and generator;
Described feed water pump is connected with the output shaft of described arrangements for speed regulation;
Described constant speed small turbine is connected with the input shaft of described arrangements for speed regulation;
The input shaft of described gear-box is connected with described constant speed small turbine;
The output shaft of described gear-box is connected with described generator.
2. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, it is characterized in that, described constant speed small turbine is back pressure type constant speed small turbine.
3. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, it is characterized in that, described constant speed small turbine is condensed steam type constant speed small turbine.
4. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, it is characterized in that, described constant speed small turbine is provided with admission line.
5. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, it is characterized in that, the input shaft of described arrangements for speed regulation is connected with the first axle head of described constant speed small turbine, and the input shaft of described gear-box is connected with the second axle head of described constant speed small turbine.
6. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, is characterized in that, the input shaft of described arrangements for speed regulation is connected with described constant speed small turbine by described generator, described gear-box.
7. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, is characterized in that, the input shaft of described gear-box is connected with described constant speed small turbine by described feed water pump, described arrangements for speed regulation.
8. the feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1 ~ 7 any one, it is characterized in that, described arrangements for speed regulation are speed governing epicyclic gearbox.
9. the feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1 ~ 7 any one, it is characterized in that, described gear-box is step-up gear, or speed governing epicyclic gearbox.
10. feed water pump constant speed small turbine Driven by Coaxial electricity generating device according to claim 1, it is characterized in that, described generator connects electrical network by transformer, or directly connects electrical network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420581049.6U CN204175343U (en) | 2014-10-09 | 2014-10-09 | Feed water pump constant speed small turbine Driven by Coaxial electricity generating device |
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| CN201420581049.6U CN204175343U (en) | 2014-10-09 | 2014-10-09 | Feed water pump constant speed small turbine Driven by Coaxial electricity generating device |
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| CN204175343U true CN204175343U (en) | 2015-02-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329126A (en) * | 2014-10-09 | 2015-02-04 | 北京联优创展科技有限公司 | Water supply pump constant-speed small steam turbine coaxial driving electric generating set |
| CN110374835A (en) * | 2019-07-29 | 2019-10-25 | 东南大学 | A kind of the feed pump variable speed drive system and driving method of two-shipper backheat unit |
-
2014
- 2014-10-09 CN CN201420581049.6U patent/CN204175343U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329126A (en) * | 2014-10-09 | 2015-02-04 | 北京联优创展科技有限公司 | Water supply pump constant-speed small steam turbine coaxial driving electric generating set |
| CN110374835A (en) * | 2019-07-29 | 2019-10-25 | 东南大学 | A kind of the feed pump variable speed drive system and driving method of two-shipper backheat unit |
| CN110374835B (en) * | 2019-07-29 | 2021-09-03 | 东南大学 | Variable-speed driving system and driving method for water feeding pump of double-machine regenerative unit |
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