CN202047874U - Waste heat power generation system - Google Patents
Waste heat power generation system Download PDFInfo
- Publication number
- CN202047874U CN202047874U CN2011201836120U CN201120183612U CN202047874U CN 202047874 U CN202047874 U CN 202047874U CN 2011201836120 U CN2011201836120 U CN 2011201836120U CN 201120183612 U CN201120183612 U CN 201120183612U CN 202047874 U CN202047874 U CN 202047874U
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- China
- Prior art keywords
- flue
- superheater
- vaporizer
- control device
- opening control
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model provides a waste heat power generation system, which comprises a flue, a superheater, an evaporator and a steam turbine. The superheater and the evaporator are arranged inside the flue. The superheater is connected with the steam turbine via a main steam pipe. A partition wall is arranged inside the flue, so that the flue is divided into an evaporator flue and a superheater flue. The evaporator and the superheater are respectively arranged inside the evaporator flue and the superheater flue. The evaporator flue and the superheater flue are respectively equipped with an evaporator flue opening control device and a superheater flue opening control device for controlling the amount of flue gas flowing through the evaporator flue and the superheater flue. The main steam pipe is equipped with a pressure sensor and the pressure sensor is connected with a controller. The controller is connected with the evaporator flue opening control device and the superheater flue opening control device. The actions of the evaporator flue opening control device and the superheater flue opening control device are controlled by the controller according to the pressure signals of the main steam pipe collected by the sensor so as to control the amount of flue gas flowing through the evaporator flue and the superheater flue. By utilizing the waste heat power generation system, the heat rate is reduced and the power generation efficiency is improved.
Description
Technical field
The utility model relates to a kind of afterheat generating system, relates in particular to the control of the heating surface arrangement and the superheated vapor pressure of afterheat generating system, belongs to the cogeneration technology field.
Background technique
The main vapour pressure of Turbo-generator Set reduces the heat consumption rate increase, the unit efficiency that cause unit and reduces, and heat utilization efficiency reduces.Reduce if main vapour pressure takes place, conventional Turbo-generator Set can make it near design load by the main vapour pressure that the fuel quantity of adjusting boiler is adjusted Turbo-generator Set, realizes efficiently operation; But the cogeneration unit does not generally directly use fuel, but utilizes the waste heat of other production processes to produce steam electric power, when main vapour pressure reduces, does not have the way of less expensive to improve main vapour pressure, will cause the efficient of cogeneration unit on the low side.For example, the main vapour pressure design load of certain cogeneration unit is 2.5MPa, and the actual motion value has only 1.3MPa, because reducing, main vapour pressure cause heat consumption rate to increase considerably than design load, generating efficiency is far below design load, as seen, the uncontrollable of afterheat generating system main vapour pressure will cause tangible decrease in efficiency, cause enormous economic loss.
The model utility content
The purpose of this utility model is to provide a kind of afterheat generating system, to solve that prior art exists because the uncontrollable afterheat generating system heat consumption rate height that causes of main vapour pressure, the problem that generating efficiency is low.
To achieve these goals, the afterheat generating system that the utility model provides, comprise flue, superheater, vaporizer, steam turbine, wherein, described superheater and vaporizer are arranged in described flue, described superheater is connected by live steam piping with described steam turbine, be provided with partition wall in the described flue so that described flue is divided into vaporizer flue and superheater flue, described vaporizer and superheater are located at respectively in described vaporizer flue and the superheater flue, and described vaporizer flue and superheater flue are respectively equipped with vaporizer flue opening control device and the superheater flue opening control device that control flows is crossed exhaust gas volumn; Described live steam piping is provided with the pressure transducer that is used to gather the live steam piping pressure signal, described pressure transducer is connected with a controller, described controller is connected with the superheater flue opening control device with vaporizer flue opening control device, described controller is controlled the action of described vaporizer flue opening control device and superheater flue opening control device according to the live steam piping pressure signal of described sensor acquisition, and then control flows is crossed the exhaust gas volumn of described vaporizer flue and superheater flue.
A kind of preferred implementation according to above-mentioned afterheat generating system, wherein, described vaporizer flue opening control device and superheater flue opening control device include valve and final controlling element, described final controlling element is connected the aperture with control valve respectively with corresponding described valve, described final controlling element all is connected with described controller.
A kind of preferred implementation according to above-mentioned afterheat generating system, wherein, described vaporizer flue opening control device and superheater flue opening control device include rotatable baffle plate and drive unit, described drive unit is connected to control the angle of swing of described baffle plate with corresponding described baffle plate respectively, and described drive unit all is connected with described controller.
By being set, partition wall independently divides flue to form two in flue, and vaporizer and superheater be located at respectively in two fens flues, and then the smoke damper opening control device by two fens flues respectively control flows cross the exhaust gas volumn of two fens flues, as seen the utility model can be adjusted the caloric receptivity of vaporizer and superheater according to the pressure of live steam piping, realize the purpose of control main vapour pressure, make afterheat generating system in running, the main vapour pressure value is near design load.Therefore, the utility model can effectively solve afterheat generating system because the low low problem of heat consumption rate height, generating efficiency that causes of main vapour pressure.
Description of drawings
Fig. 1 is structure of the present utility model and process flow diagram;
The plan structure schematic representation that Fig. 2 is cut apart flue for partition wall of the present utility model;
Fig. 3 is the schematic representation of vaporizer smoke damper of the present utility model and superheater flue baffle plate standard-sized sheet;
Fig. 4 is that superheater flue baffle opening of the present utility model closes logotype;
Fig. 5 is that vaporizer smoke damper aperture of the present utility model is closed logotype.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
What need explanation in advance is that the flow direction of all kinds of fluids when the arrow among Fig. 1-Fig. 5 is represented the utility model operation will describe in detail below no longer one by one.
Technological process when Fig. 1 shows schematic structure of the present utility model and the utility model operation, as shown in it, the utility model comprises exhaust heat boiler 1, economizer 2, vaporizer 3, flue 4, withe 5, superheater 6, drum 7, pressure transducer 8, steam turbine 9, generator 10, vapour condenser 11, condensate pump 12, deoxygenation pressurization device 13, superheater flue 14, vaporizer flue 17, controller 18, driving mechanism 19 and 20, gas baffle 15 and 16.Superheater 6 and steam turbine 9 connects the rotation with driving steam turbine 9 by live steam piping (unmarked among the figure, as also to be the set pipeline of pressure transducer 8), and steam turbine 9 is connected with generator 10 with driving generator 10 and generates electricity.Partition wall 5 is located in the flue 4 flue 4 is divided into two branch flues, also is superheater flue 14 and vaporizer flue 17, and its mid-board 5 can multiple heat-resisting board-like material, for example heat-resisting steel sheet and plate, refractory plate etc.Vaporizer 3 is located in the vaporizer flue 17, superheater 6 is located in the superheater flue 14, as depicted in figs. 1 and 2, be respectively equipped with turnover baffle plate 15,16 in superheater flue 14, the vaporizer flue 17 and cross the exhaust gas volumn of superheater flue 14, vaporizer flue 17 with control flows respectively, and preferably, as shown in Figure 1, baffle plate 15,16 is located at a side identical with the flue gas source direction of vaporizer 3, superheater 6.Pressure transducer 8 is located on the live steam piping that is connected in superheater 6 and steam turbine 9, pressure transducer 8 is connected with controller 18, controller 18 is connected with the driving mechanism 19,20 that is used to drive baffle plate 15,16 rotations, driving mechanism 19,20 can be motor (especially actuating motor), cylinder, oil cylinder, because motor, cylinder, oil cylinder pass through connection set, driving mechanisms such as connecting rod, gear, chain for example, drive a plurality of baffle plate rotations, to those skilled in the art, it can easy to doly obtain multiple implementation, therefore repeats no more.
The pressure signal that pressure transducer 8 detects in the live steam piping, then testing signal is sent to controller 18, controller 18 is controlled the action of driving mechanism 19,20 in view of the above, by the upset of driving mechanism 19,20 control baffle plates 15,16, the exhaust gas volumn of superheater flue 14, vaporizer flue 17 is flow through in control respectively whereby.
The flue opening control device of this preferred embodiment is baffle plate 15,16 and corresponding driving mechanism 19,20, but in other embodiments, also can utilize valve and final controlling element to cross the exhaust gas volumn of flue 14,17 with control flows as the flue opening control device, wherein, final controlling element is connected with controller.
When normal operation, baffle plate 15,16 state as shown in Figure 3, flue gas flows through superheater flue 14 uniformly, vaporizer flue 17, the heat that vaporizer 3 and superheater 6 receive is substantially near design load, the water of condensation that derives from vapour condenser 11 enters economizer 2 after through deoxygenation pressurization device 13, enter drum 7 after the intensification, saturation water in the drum 7 returns drum 7 after becoming steam water interface after vaporizer 3 heating, enter superheater 6 from drum 7 output dry saturated vapors, further be heated as superheated vapor, enter steam turbine 9 actings afterwards, pushing generator 10 generatings, condense into water after the exhaust steam of leaving steam turbine 9 enters vapour condenser 11 heat releases, finish circulation.
The main vapour pressure value that pressure transducer 8 detects in the live steam piping, and detected pressure signal is sent to controller 18, controller 18 compares, when controller 18 judges that the main vapour pressure value is lower than design load, control driving mechanism 19 brings into operation, driving mechanism 19 drives baffle plate 15 and begins rotation, reduce the aperture of baffle plate 15, as shown in Figure 4, whereby, increase the exhaust gas volumn of the vaporizer 3 of flowing through, the exhaust gas volumn of the superheater 6 that reduces to flow through, increase the caloric receptivity of vaporizer 3, realize increasing the purpose of main vapour pressure.
When controller 18 judges that the main vapour pressure value is higher than design load, control driving mechanism 20 brings into operation, driving mechanism 20 drives baffle plate 16 and begins action, reduce the aperture of baffle plate 16, as shown in Figure 5, reduce the exhaust gas volumn of the vaporizer 3 of flowing through, increase the exhaust gas volumn of the superheater 6 of flowing through, reduce the caloric receptivity of vaporizer 3, realize reducing the purpose of main vapour pressure.
The utility model is by regulating the aperture of vaporizer chimney valve and superheater flue valve, adjustment is by the flue gas flow of vaporizer and superheater and the caloric receptivity of vaporizer and superheater, reach the purpose of control exhaust heat boiler vapor pressure, the final vapor pressure of control afterheat generating system of realizing is near design load, the utilization ratio that improves residual heat resources and the generating efficiency of afterheat generating system.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All in the utility model scope or the change that is being equal in the scope of the present utility model all be included in the utility model.
Claims (3)
1. afterheat generating system, comprise flue, superheater, vaporizer, steam turbine, it is characterized in that, described superheater and vaporizer are arranged in described flue, described superheater is connected by live steam piping with described steam turbine, be provided with partition wall in the described flue so that described flue is divided into vaporizer flue and superheater flue, described vaporizer and superheater are located at respectively in described vaporizer flue and the superheater flue, and described vaporizer flue and superheater flue are respectively equipped with vaporizer flue opening control device and the superheater flue opening control device that control flows is crossed exhaust gas volumn;
Described live steam piping is provided with the pressure transducer that is used to gather the live steam piping pressure signal, described pressure transducer is connected with a controller, described controller is connected with the superheater flue opening control device with vaporizer flue opening control device, described controller is controlled the action of described vaporizer flue opening control device and superheater flue opening control device according to the live steam piping pressure signal of described sensor acquisition, and then control flows is crossed the exhaust gas volumn of described vaporizer flue and superheater flue.
2. afterheat generating system according to claim 1, it is characterized in that, described vaporizer flue opening control device and superheater flue opening control device include valve and final controlling element, described final controlling element is connected to control the aperture of described valve with corresponding described valve respectively, and described final controlling element all is connected with described controller.
3. afterheat generating system according to claim 1, it is characterized in that, described vaporizer flue opening control device and superheater flue opening control device include rotatable baffle plate and drive unit, described drive unit is connected to control the angle of swing of described baffle plate with corresponding described baffle plate respectively, and described drive unit all is connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201836120U CN202047874U (en) | 2011-05-24 | 2011-05-24 | Waste heat power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201836120U CN202047874U (en) | 2011-05-24 | 2011-05-24 | Waste heat power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047874U true CN202047874U (en) | 2011-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201836120U Expired - Fee Related CN202047874U (en) | 2011-05-24 | 2011-05-24 | Waste heat power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047874U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635413A (en) * | 2012-04-18 | 2012-08-15 | 山西太钢不锈钢股份有限公司 | Method for improving efficiency of saturated waste-heat power generator set |
| CN102721222A (en) * | 2012-06-07 | 2012-10-10 | 何秀锦 | System for recovering waste heat of process cooling water |
| CN102797521A (en) * | 2011-05-24 | 2012-11-28 | 何秀锦 | Waste heat power generation system |
-
2011
- 2011-05-24 CN CN2011201836120U patent/CN202047874U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797521A (en) * | 2011-05-24 | 2012-11-28 | 何秀锦 | Waste heat power generation system |
| CN102635413A (en) * | 2012-04-18 | 2012-08-15 | 山西太钢不锈钢股份有限公司 | Method for improving efficiency of saturated waste-heat power generator set |
| CN102721222A (en) * | 2012-06-07 | 2012-10-10 | 何秀锦 | System for recovering waste heat of process cooling water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FENGYANG HAITAIKE ENERGY + ENVIRONMENT MANAGEMENT Free format text: FORMER OWNER: HE XIUJIN Effective date: 20120822 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511400 GUANGZHOU, GUANGDONG PROVINCE TO: 233100 CHUZHOU, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120822 Address after: 233100 silicon industry zone, Fengyang County, Anhui, Chuzhou Patentee after: Fengyang Haitaike Energy Environmental Management Services Co.,Ltd. Address before: Nansha District Nansha street Guangzhou city Guangdong province 511400 City Ring Road West No. 483 Sea Road No. 2 Seaview Hin B block 804 Patentee before: He Xiujin |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |