CN201674346U - Back pressure generating set - Google Patents
Back pressure generating set Download PDFInfo
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- CN201674346U CN201674346U CN2010202035854U CN201020203585U CN201674346U CN 201674346 U CN201674346 U CN 201674346U CN 2010202035854 U CN2010202035854 U CN 2010202035854U CN 201020203585 U CN201020203585 U CN 201020203585U CN 201674346 U CN201674346 U CN 201674346U
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- back pressure
- generating set
- pressure turbine
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Abstract
The utility model discloses a back pressure generating set, belonging to the technical field of a thermoelectric device. The back pressure generating set comprises a generator, and is characterized in that a back pressure turbine is connected with the generator by a coupler; a boiler is connected with the back pressure turbine; and a heat supply mother pipe is connected with the back pressure turbine. The generating set adopting the back pressure turbine replaces the original extraction condensing steam turbine generating set, thus effectively improving the generating efficiency and reducing the generating cost and pollution.
Description
Technical field:
The utility model relates to a kind of back pressure type generating set, belongs to the thermoelectric device technical field.
Project background:
At present, in the pyroelectric technology field, the units with fixed attention of taking out that adopt as shown in Figure 1 more, the shortcoming of its existence is as follows: 1, along with the raw coal price rises steadily, cost of electricity-generating is more and more higher.2, national energy-saving and emission-reduction policy puts more effort, and the electricity determining by heat policy is implemented rapidly, and the outlet of thermoelectric enterprise is to enlarge heat supply, reduces energy resource consumption and pollutant emission.3, the expansion of heat demand existing takes out with fixed attention that unit is difficult to satisfy this development need.According to National Development and Reform Committee's file, little thermoelectricity will face closes down destiny, and running time can be not oversize.4, take out that with fixed attention the unit service efficiency is low.
Have based on this, make the utility model.
The utility model content:
The purpose of this utility model is to provide a kind of generating set of novel employing back pressure turbine, effectively improves generating efficiency, reduces cost of electricity-generating and pollution.
The technical scheme that the utility model is taked is as follows: a kind of back pressure type generating set, comprise generator, it is characterized in that: back pressure turbine is connected with generator by shaft coupling, and boiler links to each other with back pressure turbine, and the female pipe of heat supply links to each other with back pressure turbine.
The beneficial effects of the utility model are as follows: the utility model adopts the generating set of back pressure turbine, by with original C12-4.90/0.98 sucking condensing turbine body, condenser, vacuum system, circulation, the coagulation hydroenergy backwater system removes, keep master section, then in the concrete foundation of original steam turbine appropriate reconstruction in addition, form the generating set of novel 15MW back pressure turbine, the specified throttle flow of this type unit is 146t/h, the full admission amount is 171t/h, exhaust steam pressure 0.98MPa, 268 ℃ of exhaust temperatures, improve generating efficiency effectively, reduce cost of electricity-generating and pollution.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings:
Fig. 1 is the structural representation of existing sucking condensing turbine generating set.
Fig. 2 is a structural representation of the present utility model.
Embodiment:
In conjunction with shown in Figure 2, a kind of back pressure type generating set of the present utility model, comprise generator 1, back pressure turbine 2 is connected with generator 1 by shaft coupling, boiler 4 links to each other with back pressure turbine 2 to supply with steam, the female pipe of heat supply 3 links to each other with back pressure turbine 2, and the steam that back pressure turbine 2 was done merit enters directly that heat supply is female manages 3, supplies with hot user.
Workflow of the present utility model is as follows: the steam that produces from boiler enters the back pressure turbine acting, and steam turbine high speed is rotated, and is connected with generator by positive coupling, drives generator and rotates generating, is connected to the grid; The steam that the back pressure machine was done merit directly enters the female pipe of heat supply, supplies with hot user.
The utility model becomes thermoelectric Co., Ltd to organize project reconstruction to implement in Shaoxing, obtains extraordinary economic benefit and social benefit:
1, energy-conservation situation after the project implementation;
Technology innovation project is all finished at the end of of 2008.9 months and is put into operation, and according to production report of forward and backward month of technological transformation, calculates actual energy-conservation situation after the technological transformation with product output in 2008.
Coal consumption is 340g/kWh according to production report 2007 annuals power supply mark, the mark coal consumption of on average powering 1～June in 2009 is 249g/kWh, amount of power supply was 28911.954 ten thousand kWh in 2008, but actual year feast-brand mark coal amount is after the technological transformation: 289119540* (340-249)/1000000=26310 ton
Go into stove coal low heating value 21495kJ/kg according to annual statistical average in 2008,704 yuan/ton of average of the whole year raw coal prices in 2008 are calculated and year can be increased profit and be: ten thousand yuan of 0.0704*26310* (7000*4.18)/21495=2521
According to production report water withdrawal in 2007 is 462.2 ten thousand tons, heating load is 9735015GJ, 1～June in 2009, water withdrawal was 192.7 ten thousand tons, heating load is 4268013GJ, heating load was 9759840GJ in 2008, and actual year can be economized on water and is after the technological transformation: (462.2/9735015-192.7/4268013) * 9759840=22.7 is ten thousand tons
By reality water intaking expense is 0.13 yuan/m
3Calculating year can be saved the water intaking expense:
227000*0.13=29510 unit.
2, the performance analysis after the project implementation;
Economic benefit is calculated per year, and amount of power supply is that 3.5 hundred million kWh calculate:
Because of heat supply coal consumption before and after the technological transformation differs very little, ignore temporarily, only consider the influence of net coal consumption rate, coal consumption was 345g/kWh according to 06,07 year annual statistical average power supply mark, and transforming the coal consumption of back power supply mark according to " the energy-conservation assessment report of one-tenth thermoelectric Co., Ltd improvement project in the Shaoxing " is can save mark coal amount 213.2g/kWh calculating year to be:
(345-213.2) * 3.5*10
8/ 1000000=46130 ton
Go into stove coal low heating value 21820kJ/kg according to annual statistical average in 06,07 year, the raw coal price can increase profit with 700 yuan of/ton calculating years and be:
46130*7000*4.18/21820*0.07=4330 ten thousand yuan
After the technological transformation, full factory quantity of circulating water greatly reduces, and a 12MW takes out with fixed attention that machine condenser water consumption is 1500t/h, but the circulating cooling make-up water rate is 1.5% to calculate a year water-saving amount and be:
1500*2*0.015*24*365＝394200m
3
By reality water intaking expense is 0.13 yuan/m
3Calculating year can be saved the water intaking expense:
394200*0.13=51246 unit
Can maximumly increase heat capacity after the scrap build simultaneously is 182t/h, makes the maximum heat capacity of company can reach 550t/h, has alleviated the growing heat demand in industrial area, robe river greatly.
Claims (1)
1. a back pressure type generating set comprises generator, it is characterized in that: back pressure turbine is connected with generator by shaft coupling, and boiler links to each other with back pressure turbine, and the female pipe of heat supply links to each other with back pressure turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202035854U CN201674346U (en) | 2010-05-22 | 2010-05-22 | Back pressure generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202035854U CN201674346U (en) | 2010-05-22 | 2010-05-22 | Back pressure generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674346U true CN201674346U (en) | 2010-12-15 |
Family
ID=43331753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202035854U Expired - Fee Related CN201674346U (en) | 2010-05-22 | 2010-05-22 | Back pressure generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104856346A (en) * | 2015-05-27 | 2015-08-26 | 上海霍雷加新材料科技有限公司 | Efficient generating shoe capable of generating electricity |
-
2010
- 2010-05-22 CN CN2010202035854U patent/CN201674346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104856346A (en) * | 2015-05-27 | 2015-08-26 | 上海霍雷加新材料科技有限公司 | Efficient generating shoe capable of generating electricity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140522 |