CN205089534U - Solar photo -thermal power generation system - Google Patents
Solar photo -thermal power generation system Download PDFInfo
- Publication number
- CN205089534U CN205089534U CN201520874167.0U CN201520874167U CN205089534U CN 205089534 U CN205089534 U CN 205089534U CN 201520874167 U CN201520874167 U CN 201520874167U CN 205089534 U CN205089534 U CN 205089534U
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- China
- Prior art keywords
- working medium
- medium pump
- generation system
- screw
- heat collector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model provides a solar photo -thermal power generation system, includes heat collector, screw rod expander, generator, vapour and liquid separator, condenser, first working medium pump, second working medium pump, vapour and liquid separator includes gas outlet end and liquid output, and vapour and liquid separator's gas outlet end is connected to the condenser, and vapour and liquid separator's liquid output is connected to second working medium pump, first working medium pump and second working medium pump assemble the back with the heat collector is connected, solar photo -thermal power generation system still includes a reheat portion, and this reheat portion connects first working medium pump and second working medium pump and heat collector, this reheat portion with the screw rod expander is connected to absorb the heat that advances the working medium of hot screw rod expander from the heat collector, in the heat collector that flows back again after being heated. The utility model discloses a solar photo -thermal power generation system retrieves the gaseous partial condensation owing to through setting up vapour and liquid separator, will pass through the working medium gas -liquid separation behind the screw rod expander for liquid, avoided the condensation to the liquid part, has improved the efficiency of backheat.
Description
Technical field
The present invention relates to field of solar energy utilization, particularly relate to a kind of solar light-heat power-generation system.
Background technique
Traditional steam turbine power generation must be the saturated vapour of High Temperature High Pressure, and such working condition is very high to the requirement of heat collector, must can reach the high temperature of more than 400 DEG C.Meanwhile, the electric motor power of steam turbine can not be too little, otherwise efficiency is not high.And so high working condition requirement will be reached, the cost of heat collector equipment must increase considerably, and not only needs the equipment such as cooling tower, and sometimes also needing increases ancillary heating equipment.Adopting steam turbine power generation, must be the photothermal power generation factory that generated energy is higher, system complex, and construction speed is slow, and overall cost is high, and needs smooth wide light field, and require harsh to place, therefore the development & application of photothermal power generation is restricted.
In addition, the working medium of traditional solar light-heat power-generation system out forms vehicle repair major fluid from heat collector, and enter screw power machine acting, pushing generator produces electric energy; Vehicle repair major fluid after screw expander step-down directly enters condenser and carries out condensation, finally just gets back to heat collector and carries out adding of next circulation; But this mode is extremely low to the utilization of heat, do not meet the trend of environmental protection.
Summary of the invention
Embodiments provide that a kind of requirement to heat collector is low, extraction cycle utilizes high solar light-heat power-generation system.
A kind of solar light-heat power-generation system, comprises heat collector, connects the screw expander of this heat collector, the gas-liquid separator of the generator of connecting screw rod decompressor, the exhaust end of connecting screw rod decompressor, condenser, the first working medium pump of connection condenser, the second working medium pump; Described gas-liquid separator comprises a gas output end and fluid output port, and described condenser connects the gas output end of gas-liquid separator, and described second working medium pump connects the fluid output port of gas-liquid separator; Be connected with described heat collector after described first working medium pump and the second working medium pump converge; Described solar light-heat power-generation system also comprises a reheating portion, this reheating portion connects described first working medium pump and the second working medium pump and heat collector, this reheating portion is connected with described screw expander, to absorb the heat of the working medium entering hot screw expander from heat collector, is back in heat collector after being heated again.
Further, described reheating portion is wound around the external lateral portion being arranged on screw expander.
Further, described screw expander comprise a housing, connect the front bearing of housing forward end, connect before bearing front end protecgulum, connect this housing rear end bonnet, be arranged on female rotor in this housing and male rotor; This female rotor comprises female screw rotating shaft and female screw swivel nut; This male rotor comprises positive screw shaft and positive screw rod swivel nut; The rear end of described female screw rotating shaft is fixed with the first synchromesh gear, and the rear end of described positive screw shaft is fixed with the second synchromesh gear, and this second synchromesh gear and the first synchromesh gear are connected with a joggle; The mating part of the front end of described female screw rotating shaft and the front end of positive screw shaft and front bearing is provided with high voltage terminal admixture ceramics bearing from protecgulum successively towards housing, high voltage terminal flexible graphite sealing, high voltage terminal honeycomb seal; The rear end of described female screw rotating shaft and the rear end of positive screw shaft and the mating part of housing are provided with low voltage terminal admixture ceramics bearing from bonnet successively towards housing, low voltage terminal flexible graphite sealing, low voltage terminal honeycomb seal.
Further, described front bearing is provided with intake duct; Described screw expander also comprises the ready-package inlet plate be arranged on front bearing, and this ready-package inlet plate is plugged on front bearing and also arranges near housing; This ready-package inlet plate is provided with connection mouth to be communicated with the inside of described intake duct and housing.
Further, the female screw rotating shaft of described female rotor and female screw swivel nut are made up of different materials.
Further, the positive screw shaft of described male rotor and positive screw rod swivel nut are made up of different materials.
Further, the number of teeth of described male rotor is 5, and the number of teeth of female rotor is 7.
As can be seen from the above technical solutions, solar light-heat power-generation system of the present invention is due to by arranging gas-liquid separator, by the working medium gas-liquid separation after screw expander, gas fraction is condensed into liquid reclaim, and liquid part reclaims without the need to cooling, avoid the condensation to liquid part, greatly increase the efficiency of backheat; Be input to screw expander through the liquid working substance of the first working medium pump and the second working medium pump to absorb heat simultaneously, preheating enters the cardinal temperature of the working medium of heat collector widely, make heat collector quickly the working medium of inside can be brought up to required temperature, while reaching high usage, running is efficient.
Accompanying drawing explanation
Fig. 1 is the connection diagram of solar light-heat power-generation system of the present invention.
Fig. 2 is the sectional view of the screw expander of Fig. 1.
Fig. 3 is the plan view of the screw expander of Fig. 2, and wherein gas-entered passageway is sectional view.
Fig. 4 is the female rotor of the screw expander of Fig. 2 and the schematic cross-section of male rotor cooperation.
Embodiment
In order to make technological scheme of the present invention more clearly show, below in conjunction with accompanying drawing, the invention will be further described.
Please refer to Fig. 1, for the solar light-heat power-generation system of a kind of preferred embodiment of the present invention, comprise heat collector 91, connect the screw expander 100 of this heat collector 91, the gas-liquid separator 93 of the generator 92 of connecting screw rod decompressor 100, the exhaust end of connecting screw rod decompressor 100, condenser 94, connect the first working medium pump 81, second working medium pump 82 of condenser 94; Described gas-liquid separator 93 comprises a gas output end 930 and fluid output port 935, and described condenser 94 connects the gas output end 930 of gas-liquid separator 93, and described second working medium pump 82 connects the fluid output port 935 of gas-liquid separator 93; Be connected with described heat collector 91 after described first working medium pump 81 and the second working medium pump 82 converge.In the present embodiment, described solar light-heat power-generation system also comprises a reheating portion 83, this reheating portion 83 connects described first working medium pump 81 and the second working medium pump 82 and heat collector 91, this reheating portion 83 is connected with described screw expander 100, to absorb the heat of the high temperature refrigerant entering hot screw expander 100 from heat collector 91, be back to again in heat collector 91 after being heated.Understandably, described reheating portion 83 is wound around the external lateral portion being arranged on screw expander 100.
Solar light-heat power-generation system of the present invention is due to by arranging gas-liquid separator 93, by the working medium gas-liquid separation after screw expander 100, gas fraction is condensed into liquid reclaim, and liquid part reclaims without the need to cooling, avoid the condensation to liquid part, greatly increase the efficiency of backheat; Be input to screw expander 100 through the liquid working substance of the first working medium pump 81 and the second working medium pump 82 to absorb heat simultaneously, preheating enters the cardinal temperature of the working medium of heat collector 91 widely, make heat collector 91 quickly the working medium of inside can be brought up to required temperature, while reaching high usage, running is efficient.
Please refer to Fig. 2 to Fig. 4, described screw expander 100 comprise housing 10, connect the front bearing 11 of housing 10 front end, connect before bearing 11 front end protecgulum 12, connect housing 10 rear end bonnet 13, be arranged on female rotor 20 in housing 10 and male rotor 30; This female rotor 20 comprises female screw rotating shaft 21 and female screw swivel nut 22; This male rotor 30 comprises positive screw shaft 31 and positive screw rod swivel nut 32; Described female screw rotating shaft 21 wears and connects described female screw swivel nut 22, and described positive screw shaft 31 wears described positive screw rod swivel nut 32.The rear end of described female screw rotating shaft 21 is fixed with the first synchromesh gear 210, and the rear end of described positive screw shaft 31 is fixed with the second synchromesh gear 310, and this second synchromesh gear 310 and the first synchromesh gear 210 are connected with a joggle.In the present embodiment, the diameter of this first synchromesh gear 210 is greater than the diameter of the second synchromesh gear 310, and this first synchromesh gear 210 and the second synchromesh gear 310 are positioned at described bonnet 13.
The mating part of the front end of female screw rotating shaft 21 and the front end of positive screw shaft 31 and front bearing 11 is provided with high voltage terminal admixture ceramics bearing 41 from protecgulum 12 successively towards housing 10, high voltage terminal flexible graphite sealing 42, high voltage terminal honeycomb seal 43; The mating part of the rear end of female screw rotating shaft 21 and the rear end of positive screw shaft 31 and housing 10 is provided with low voltage terminal admixture ceramics bearing 51 from bonnet 13 successively towards housing 10, low voltage terminal flexible graphite sealing 52, low voltage terminal honeycomb seal 53.
In the present invention, high voltage terminal admixture ceramics bearing 41 and low voltage terminal admixture ceramics bearing 51 are identical on material, and just length is different, and the length of high voltage terminal admixture ceramics bearing 41 is greater than the length of low voltage terminal admixture ceramics bearing 51.In like manner, high voltage terminal flexible graphite sealing 42 and low voltage terminal flexible graphite sealing 52, high voltage terminal honeycomb seal 43 differences sealing 53 with low voltage terminal honeycomb and are also only that length is different thus the high low pressure effect played is different.
Because female screw rotating shaft 21 and positive screw shaft 31 have employed high voltage terminal admixture ceramics bearing 41 and low voltage terminal admixture ceramics bearing 51 as Bearing fittings, there is during operation less friction, without the need to too many lubricant oil during High Rotation Speed, when seal failure is leaked into working medium, still keep good greasy property and can not bearing damage be caused.Guarantee device security reliable operation.
Because female screw rotating shaft 21 and positive screw shaft 31 have employed high voltage terminal honeycomb sealing 43 and low voltage terminal honeycomb sealing 53, this sealing is noncontact seal, and when rotor high-speed rotates, working medium is rapid depressurization cooling in special honeycomb structure, reduce pressure step by step, and form good sealing.Owing to being contactless, do not hinder consumption, improve efficiency.And have employed high voltage terminal flexible graphite sealing 42 and low voltage terminal flexible graphite sealing 52, this sealing is contact seal, has self lubricity.Be abutted against completely when low speed start and touch sealing.When High Rotation Speed, open by centrifugal force, and leave rotor surface.Now do not contact, work by honeycomb sealing completely.Seal 53 with high voltage terminal flexible graphite sealing 42, low voltage terminal honeycomb coordinate with the common of low voltage terminal flexible graphite sealing 52 owing to have employed high voltage terminal honeycomb sealing 43, the effect of high voltage terminal admixture ceramics bearing 41 and low voltage terminal admixture ceramics bearing 51, make female screw rotating shaft 21 and positive screw shaft 31 all can seal and have less friction in low speed and high speed, good seal performance, noise are little.
Please again consult Fig. 3, described front bearing 11 is provided with intake duct 110, and this intake duct 110 has suction port 115.Described screw expander 100 also comprises the ready-package inlet plate 60 be arranged on front bearing 11, and this ready-package inlet plate 60 is plugged on front bearing 11 and also arranges near housing 10.Ready-package inlet plate 60 is provided with connection mouth (not shown), and this connection mouth is communicated with the inside of described intake duct 110 and housing 10.After the working medium of high temperature enters intake duct 110 from suction port 115, then enter the inside of housing 10 from the connection mouth of inlet plate 60, thus promote female rotor 20 and male rotor 30 rotates.This ready-package inlet plate 60 is arranged between front bearing 11 and housing 10 by the mode of plug.When screw expander 100 is debugged or when the working medium of corresponding access changes, different steam discharge parameters needs different flow inlet angles, screw expander 100 of the present invention can reach adjustment flow inlet angle by changing different ready-package inlet plates 60, without the need to whole screw expander 100 is carried out disintegration hue angle, convenient and swift.Understandably, same screw expander 100 can prepare multiple specification ready-package inlet plate 60, and even connection mouth size is different, with satisfied adjustment needs for the flow inlet angle of each ready-package inlet plate 60.Each ready-package inlet plate 60 all can with screw expander 100 Matching installation, and to be tightly connected.
Please again consult Fig. 4, the number of teeth of described male rotor 30 is 5, and the number of teeth of female rotor 20 is 7, adopts the number of teeth combination of 5:7, while guarantee rotor rigidity, provides higher efficiency; And combine in conjunction with the number of teeth of 5:7; Female rotor 20 and male rotor 30 adopt forth generation molded line, have shorter contact line length, less leakage triangle area; Be with sealing completely, there is better sealability; Complete streamlined profile of tooth, has less steam-operating loss, greatly reduces noise during operation.
Wherein, female rotor 20 and male rotor 30 all adopt split modular structure, more easily form batch production, reduce costs; Female screw rotating shaft 21 and female screw swivel nut 22 or screw shaft 31 and positive screw rod swivel nut 32 can use unlike material respectively, can significantly reduce cost; The easier heat treatment of rotating shaft, has better rigidity and toughness, can bear larger pressure reduction and the shape that remains unchanged; Directly can change after swivel nut is impaired, save cost.
It is little that described screw expander 100 of the present invention has noise, and bearing capacity is high, and during High Rotation Speed, aerodynamic loss is little, operates steadily, high efficient and reliable; By arranging ready-package inlet plate 60, can balance the production on a large scale, fluctuation and the change of field working conditions can be adapted to simultaneously; Female rotor 20 and male rotor 30 adopt Split type structure respectively, processing, install, easy to maintenance, significantly reduce costs.Be applied to the requirement that described solar light-heat power-generation system create a further reduction the pressure and temperature of the working medium to heat collector 91.
The above, above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (7)
1. a solar light-heat power-generation system, is characterized in that: comprise heat collector, connect the screw expander of this heat collector, the gas-liquid separator of the generator of connecting screw rod decompressor, the exhaust end of connecting screw rod decompressor, condenser, the first working medium pump of connection condenser, the second working medium pump; Described gas-liquid separator comprises a gas output end and fluid output port, and described condenser connects the gas output end of gas-liquid separator, and described second working medium pump connects the fluid output port of gas-liquid separator; Be connected with described heat collector after described first working medium pump and the second working medium pump converge; Described solar light-heat power-generation system also comprises a reheating portion, this reheating portion connects described first working medium pump and the second working medium pump and heat collector, this reheating portion is connected with described screw expander, to absorb the heat of the working medium entering hot screw expander from heat collector, is back in heat collector after being heated again.
2. solar light-heat power-generation system according to claim 1, is characterized in that: described reheating portion is wound around the external lateral portion being arranged on screw expander.
3. solar light-heat power-generation system according to claim 1, is characterized in that: described screw expander comprises a housing, connect the front bearing of housing forward end, connect before bearing front end protecgulum, connect this housing rear end bonnet, be arranged on female rotor in this housing and male rotor; This female rotor comprises female screw rotating shaft and female screw swivel nut; This male rotor comprises positive screw shaft and positive screw rod swivel nut; The rear end of described female screw rotating shaft is fixed with the first synchromesh gear, and the rear end of described positive screw shaft is fixed with the second synchromesh gear, and this second synchromesh gear and the first synchromesh gear are connected with a joggle; The mating part of the front end of described female screw rotating shaft and the front end of positive screw shaft and front bearing is provided with high voltage terminal admixture ceramics bearing from protecgulum successively towards housing, high voltage terminal flexible graphite sealing, high voltage terminal honeycomb seal; The rear end of described female screw rotating shaft and the rear end of positive screw shaft and the mating part of housing are provided with low voltage terminal admixture ceramics bearing from bonnet successively towards housing, low voltage terminal flexible graphite sealing, low voltage terminal honeycomb seal.
4. solar light-heat power-generation system according to claim 3, is characterized in that: described front bearing is provided with intake duct; Described screw expander also comprises the ready-package inlet plate be arranged on front bearing, and this ready-package inlet plate is plugged on front bearing and also arranges near housing; This ready-package inlet plate is provided with connection mouth to be communicated with the inside of described intake duct and housing.
5. solar light-heat power-generation system according to claim 3, is characterized in that: female screw rotating shaft and the female screw swivel nut of described female rotor are made up of different materials.
6. solar light-heat power-generation system according to claim 3, is characterized in that: positive screw shaft and the positive screw rod swivel nut of described male rotor are made up of different materials.
7. solar light-heat power-generation system according to claim 3, is characterized in that: the number of teeth of described male rotor is 5, and the number of teeth of female rotor is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874167.0U CN205089534U (en) | 2015-11-04 | 2015-11-04 | Solar photo -thermal power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874167.0U CN205089534U (en) | 2015-11-04 | 2015-11-04 | Solar photo -thermal power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089534U true CN205089534U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520874167.0U Withdrawn - After Issue CN205089534U (en) | 2015-11-04 | 2015-11-04 | Solar photo -thermal power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240229A (en) * | 2015-11-04 | 2016-01-13 | 江西宝象科技有限公司 | Solar photothermal power generation system |
-
2015
- 2015-11-04 CN CN201520874167.0U patent/CN205089534U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240229A (en) * | 2015-11-04 | 2016-01-13 | 江西宝象科技有限公司 | Solar photothermal power generation system |
| CN105240229B (en) * | 2015-11-04 | 2018-11-02 | 江西宝象科技有限公司 | Solar light-heat power-generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160316 Effective date of abandoning: 20181102 |
|
| AV01 | Patent right actively abandoned |