CN203067039U - Improved type generation system with heat pump assisting in cooling condensed steam - Google Patents
Improved type generation system with heat pump assisting in cooling condensed steam Download PDFInfo
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- CN203067039U CN203067039U CN 201220699614 CN201220699614U CN203067039U CN 203067039 U CN203067039 U CN 203067039U CN 201220699614 CN201220699614 CN 201220699614 CN 201220699614 U CN201220699614 U CN 201220699614U CN 203067039 U CN203067039 U CN 203067039U
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Abstract
The utility model discloses an improved type generation system with a heat pump assisting in cooling condensed steam. The improved type generation system comprises a boiler, a turbine, a steam condenser, a heat pump compressor, an evaporator, a condenser and a cooling tower. The boiler, the turbine, the condenser are connected in sequence through pipelines, the evaporator and the cooling tower are both provided with independent circulation loops formed by cold water pipelines and hot water pipelines, and the circulation loops are connected with the steam condenser. The heat pump technology and the cooling tower are used for cooling and condensing dead steam and hot steam exhausted by the turbine at the same time, and condensing efficiency is improved. Meanwhile, the heat pump is used for transferring heat in the hot steam exhausted by the turbine, and the heat is used for converting liquid condensed water into high-temperature condensed water or low-pressure steam which is complemented in the boiler. Therefore, heat emission is reduced through utilization of the heat, a condensation effect of the steam condenser is strengthened, output power of the turbine is improved, and generation cost is reduced through improvement of a thermoelectric conversion rate and heat energy recovery.
Description
Technical field
The utility model relates to a kind of steamer power generation system, particularly relates to the auxiliary condensing cooling of modified model heat pump power generation system.
Background technique
Power generation system is a kind of machine that mechanical energy is changed into electric energy, usually by steam turbine, water turbine or internal combustion engine drive.Power generation system with Steam Turbine Driven, the superheated vapor that is produced by boiler enters the acting of expanding in the steam turbine, make blade rotation and drive power generation system generating, the waste vapour after the acting through vapour condenser, circulating water pump, condensate pump, send boiler back to water heater etc. and recycle.
The elevated temperature heat steam that discharges for the steamer power generation system in the prior art generally adopts water-cooled or air cooling.Cooling procedure is the process of changing between the energy of the used heat of system discharging and environment.The heat-transfer coefficient of water-cooled is 1762W(m
2K), to do the heat-transfer coefficient of cooling medium be 62W(m to air
2K).Heat-transfer coefficient has characterized the intensity of diabatic process, and the more big diabatic process of numerical value is more strong.Because the air cooling system heat-transfer coefficient is little, economic efficacy is poor, therefore mainly adopts water cooling system at present.
Water cooling system need consume a large amount of Water Energy as cooling water, and water-cooled still is air-cooledly all the heat in the high-temperature steam of steam turbine discharging can be taken away, the thermal efficiency of thermal power generation on average has only 35%-40% according to statistics, and the energy major part system of being cooled takes away and produces a large amount of used heat, has reduced the utilization ratio of heat.Though can utilize by collecting for the used heat of discharging, but the power station is often distant apart from the urban district, need be with waste heat to a very high temperature of discharging, and then from be transported to the urban district heat exchange station from the power station, because it is a lot of that transport temperature is higher than ambient temperature, therefore the cooling of serious heat loss in transportation process, and thermal expansion is had relatively high expectations to pipeline and relevant device, thereby causes the used heat that can't effectively utilize discharging.
In addition owing to the design for cooling tower in the prior art does not take into full account ambient temperature effect, often cause during the broiling summer, cooling effect descends, overpressure causes generating efficiency to descend in the vapour condenser, if redesign is built new cooling system then is spent higher, thereby and the long economic loss that causes of engineering time, if do not transform then under the generating efficiency, thereby waste a large amount of energy.
Summary of the invention
The utility model is finished in order to solve above deficiency of the prior art, the utility model is lowered the temperature, is condensed the hot steam of discharging by the heat pump techniques auxiliary cooling tower, and by heat pump with the transfer of heat in the hot steam of discharging in the steam turbine, use this heat with the concurrent heating of condensation after heat steam condensate, and then add in the boiler again, thereby partly or entirely utilize exhaust steam, the heat in the steam, the minimizing hot driving of steam turbine discharging again, reduced cost of electricity-generating by having improved cooling condensing effect and heat energy recycle.And because power generation system structure of the present utility model is simple, therefore can forms by existing cooling system is simply transformed, and improve the cooling effectiveness of existing cooling system greatly.Thereby under the lower situation of cost, efficiently solve a series of problems of degradation under the generating efficiency that cooling tower is aging in the power plant, designed capacity is not enough to be caused, and heat pump cooling system of the present utility model and water tower cooling system are independent separately, therefore the refrigerant in the heat pump can be selected to adopt among freon, water, ethylene glycol, R22, R134a, R415b, R417a, R245FA, R123, the R141 any according to actual needs, thereby further improves the heat pump cooling effectiveness.
By suitable increasing heat pump compressor group power, reduce the effect of cooling tower heat radiation, can realize full heat recovery recycling, until realizing the heat energy zero-emission.
The auxiliary condensing cooling of modified model heat pump of the present utility model power generation system is characterized in that: the auxiliary condensing cooling of described modified model heat pump power generation system comprises boiler, steam turbine, vapour condenser, heat pump compressor, vaporizer, condenser, cooling tower, wherein said boiler, steam turbine, vapour condenser, condenser link to each other successively by pipeline, and described vaporizer all has cold water pipes with cooling tower and links to each other with vapour condenser with the independent loops loop that hot water pipeline forms.
Described heat pump compressor is arranged between condenser and the vaporizer, and connects by pipeline, constitutes the compression type heat pumping system.
The utility model is by producing transportation with heat pump techniques to heat, auxiliary hot steam to discharging is lowered the temperature in condenser, condense, and by heat pump with the transfer of heat in the hot steam of discharging in the steam turbine, use this heat with the concurrent heating of condensation after heat steam condensate, and add in the boiler recycling again, thereby take full advantage of the heat in the steam of steam turbine discharging, reduce hot driving, cooling effect improves also can strengthen vapour condenser condensing effect, improve the steam turbine output power, reduced cost of electricity-generating by improving two aspects of thermoelectric conversion ratio and heat energy recycle.
Description of drawings
Fig. 1 heat of the present utility model is improved the auxiliary condensing cooling of heat pump power generation system
The figure number explanation
1 ... boiler 2 ... steam turbine 3 ... vapour condenser
4 ... cooling tower 5 ... cold water pipes 6 ... hot water pipeline
7 ... hot water pipeline 8 ... cold water pipes 9 ... vaporizer
10 ... heat pump compressor 11 ... condenser
Embodiment
Heat pump compressor described in the utility model is arranged between condenser and the vaporizer, is connected with vaporizer with condenser by pipeline, constitutes typical compression type heat pumping system, belongs to conventional heat pump in related domain, no longer is described in detail in this article.
Fig. 1 below in conjunction with accompanying drawing is described in further detail with the principle of utilizing this power generation system generating the auxiliary condensing cooling of modified model heat pump of the present utility model power generation system.
The auxiliary condensing cooling of hot modified model heat pump of the present utility model power generation system, please refer to Fig. 1, the auxiliary condensing cooling of modified model heat pump of the present utility model power generation system is characterized in that: the auxiliary condensing cooling of described modified model heat pump power generation system comprises boiler 1, steam turbine 2, vapour condenser 3, heat pump compressor 10, vaporizer 9, condenser 11, cooling tower 4, wherein said boiler 1, steam turbine 2, vapour condenser 3, condenser 11 links to each other successively by pipeline, and described vaporizer 9 all has cold water pipes with cooling tower 4 and links to each other with vapour condenser 3 with the independent loops loop that hot water pipeline forms.
In the further embodiment of the utility model, described heat pump compressor 10 is arranged between condenser 11 and the vaporizer 9, and connects (pipeline does not draw in the drawings) by pipeline, constitutes the compression type heat pumping system.
The principle that the utility model utilizes the auxiliary condensing cooling of above-mentioned modified model heat pump power generation system to generate electricity, it may further comprise the steps with reference to figure 1:
Step 1, heating boiler 1 makes water in the boiler 1 generation steam that is heated, and steam enters steam turbine 2 by pipeline, and steam turbine 2 outputting powers make generator produce electric power;
Step 2, the exhaust steam of discharging in the steam turbine 2, hot steam enters in the vapour condenser 3 by pipeline, the cold water pipes 8 of vaporizer 9 enters vapour condenser 3, and with the exhaust steam of discharging, the heat of hot steam partially absorbs and takes away steam is condensed, cold water after the intensification of discharging enters vaporizer 9 by hot water pipeline 6, heat pump compressor 10 work, refrigerant is by heat exchange in the heat pump, heat transferred condenser 11 with the back cold water that heats up, refrigerant is emitted heat in condenser 11, become hot steam again and enter steam turbine 2, the generating of steam turbine 2 outputting powers being conveyed into boiler 1 after the condensate return heating of discharging in the vapour condenser 3:
Step 3, the cold water in the cooling tower 4 enters vapour condenser 3 by cold water pipes 5, and absorbs the exhaust steam of discharging in the steam turbine, the heat of steam, discharges and returns cooling tower 4 from hot water pipeline 7, enters vapour condenser 3 from cold water pipes 5 again after supercooling.
Described refrigerant is freon, water, ethylene glycol, R22, R134a, R415b, R245FA, R123, any one among R141 or the R417a.
From above-mentioned mode of execution, the utility model is by producing transportation with heat pump techniques to heat, auxiliary hot steam to discharging is lowered the temperature, is condensed in condenser, and by heat pump with the transfer of heat in the hot steam of discharging in the steam turbine, use this heat with the concurrent heating of condensation after heat steam condensate, and add in the boiler recycling again, thereby take full advantage of heat in the steam of steam turbine discharging, reduce hot driving, by having improved cooling effect and energy recovery recycling, reduced cost of electricity-generating.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion are amplified or are dwindled etc., all should think to fall into protection domain of the present utility model.
Claims (2)
1. the auxiliary condensing of modified model heat pump cools off power generation system, it is characterized in that: the auxiliary condensing cooling of described modified model heat pump power generation system comprises boiler, steam turbine, vapour condenser, heat pump compressor, vaporizer, condenser, cooling tower, wherein said boiler, steam turbine, vapour condenser, condenser link to each other successively by pipeline, and described vaporizer all has cold water pipes with cooling tower and links to each other with vapour condenser with the independent loops loop that hot water pipeline forms.
2. the auxiliary condensing cooling of modified model heat pump according to claim 1 power generation system is characterized in that: described heat pump compressor is arranged between condenser and the vaporizer, and connects by pipeline, constitutes the compression type heat pumping system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699614 CN203067039U (en) | 2012-12-18 | 2012-12-18 | Improved type generation system with heat pump assisting in cooling condensed steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699614 CN203067039U (en) | 2012-12-18 | 2012-12-18 | Improved type generation system with heat pump assisting in cooling condensed steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067039U true CN203067039U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699614 Expired - Fee Related CN203067039U (en) | 2012-12-18 | 2012-12-18 | Improved type generation system with heat pump assisting in cooling condensed steam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775140A (en) * | 2012-12-18 | 2014-05-07 | 苟仲武 | Improved electricity generation system with pump assisting in condensing and cooling and electricity generation method of electricity generation system |
| CN106492491A (en) * | 2016-10-25 | 2017-03-15 | 中原工学院 | A kind of driving heat source latent heat indirect cyclic process utilizes type multistage evaporation enrichment facility |
-
2012
- 2012-12-18 CN CN 201220699614 patent/CN203067039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775140A (en) * | 2012-12-18 | 2014-05-07 | 苟仲武 | Improved electricity generation system with pump assisting in condensing and cooling and electricity generation method of electricity generation system |
| CN106492491A (en) * | 2016-10-25 | 2017-03-15 | 中原工学院 | A kind of driving heat source latent heat indirect cyclic process utilizes type multistage evaporation enrichment facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20211218 |