CN109489022A - Steam purge formula photo-thermal electricity steam generating system - Google Patents
Steam purge formula photo-thermal electricity steam generating system Download PDFInfo
- Publication number
- CN109489022A CN109489022A CN201710813291.XA CN201710813291A CN109489022A CN 109489022 A CN109489022 A CN 109489022A CN 201710813291 A CN201710813291 A CN 201710813291A CN 109489022 A CN109489022 A CN 109489022A
- Authority
- CN
- China
- Prior art keywords
- steam
- fused salt
- superheater
- evaporator
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of steam purge formula photo-thermal electricity steam generating systems, including evaporator, steam-water separator and superheater, the evaporator and superheater respectively includes being vertically arranged and top is formed with the tank body that fused salt fused salt import lower part is formed with fused salt outlet, and it is correspondingly arranged the pipe type heat transfer mechanism of tank interior, the steam (vapor) outlet side of the heat exchange mechanisms of the superheater is provided with steamdrum, the fused salt of hot tank exports successively through molten salt pipeline and superheater, evaporator is connected to cold tank, the controllable steam inlet tube being connected to the steamdrum is connected to by the outlet side of the hot melt salt pump.Using the high-temperature steam flow path and tank body progress Rapid Cleaning in steamdrum, avoid remaining.And by the setting of vapour-discharge tube, optionally the fused salt blown back is directly discharged to except cold tank, avoids introducing excessive vapor or impurity in tank body.
Description
Technical field
The present invention relates to photo-thermal electro-technical fields, more particularly to a kind of steam purge formula photo-thermal electricity steam generating system.
Background technique
Due to energy crisis and atmosphere pollution, countries in the world increase the investment to solar energy research exploitation, solar heat
The project developments such as water, solar building, solar energy power generating, solar energy thermal-power-generating are rapid, and scale is gradually expanded.Solar heat
Electricity generation system mainly has 4 seed types: slot type, tower, dish-style and linear Fresnel form.Currently, conventional solar energy thermal-power-generating
System is to be focused to sunlight reflection on heat collector using reflecting mirror, and the solar radiant energy of aggregation is changed into heat by heat collector
Working medium in heat collector can and be reached, the working medium being heated can directly evaporate (such as water) and generate power to push power generation
Or thermal energy is reached by hold over system and steam power system by corresponding heat exchange equipment.
Due to directly use water as heat transfer acting working medium there are on system waterpower dynamic design complexity and accumulation of heat side
The difficulty in face, so current solar heat power generation system generally uses synthetic oil or fused salt as accumulation of heat working medium of conducting heat, then by with
Steam generator heat exchange generates the power steam for being suitble to corresponding Turbo-generator Set.It can thus be seen that solar energy thermal-power-generating system
The design of the intermediate heat hold over system of system is most important.
Fuse salt is a kind of selection well as heat transfer accumulation of heat working medium, mirror field output temperature can be increased to 450-
500 DEG C, power cycle efficiency is set to be greater than 40%, the accumulation of heat temperature difference is greater than 2.5 times.But such application at present is conventional binary
Salt, the salt fusing point is high, easily condensation frozen block, and especially when shutting down period, how quick and discharge completely becomes urgently to be solved
Problem.
Summary of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of steam purge formula photo-thermal electricity
High-efficiency steam generating system.
The technical solution adopted to achieve the purpose of the present invention is:
A kind of steam purge formula photo-thermal electricity steam generating system, including evaporator, steam-water separator and superheater, it is described
Evaporator and superheater respectively include being vertically arranged and top is formed with the tank that fused salt fused salt import lower part is formed with fused salt outlet
Body, and it is correspondingly arranged the pipe type heat transfer mechanism of tank interior, the steam (vapor) outlet side setting of the heat exchange mechanisms of the superheater
There is steamdrum, the fused salt outlet of hot tank is successively connected to through molten salt pipeline with superheater, evaporator and cold tank, the hot melt salt pump
Outlet side by be connected to the controllable steam inlet tube being connected to the steamdrum.
Heat the outlet height highest of salt pump, the fused salt entrance of cold tank, the fused salt outlet of evaporator, evaporator fused salt into
Mouthful, the outlet of the fused salt of superheater, superheater entrance and heat the fused salt outlet height of salt pump and successively increase, the fused salt of connection
Pipeline relative level is obliquely installed.
The vapour-discharge tube controllably opened or closed is connected to by the fused salt entrance side of the cold tank.
The heat exchange mechanisms include multiple S being arranged in axially extending in the tank body and keep interval mutually
Curvilinear style heat exchanger tube, the distribution cavity and collection for being correspondingly arranged at tank base and top and being connected to respectively with the heat exchanger tube
Chamber.
The top of the evaporator is arranged in and with the collecting chamber of the superheater through steam pipe in the steamdrum
Connection, the steamdrum top are provided with safety discharge valve and are connected to the steam outlet pipe of steam turbine, and in the steaming
Pressure controller is set on vapour fused salt outlet, is connect by the steam inlet tube and the steam outlet pipe.
Filter screen is provided in the steam pipe.
The tank body of the evaporator and superheater is cylindrical shape, and inside spin plate is fixed on the inner wall of circle tube tank body
The height of the inside spin plate is in 20-40cm.
It is provided with heating chamber set on the outside of the evaporator and superheater, is provided with guarantor outside the heating chamber set
Warm layer is provided with electric heating coil pipe in the heating chamber set.
The top that the heating chamber covers is provided with drain valve, the fused salt outlet side of the drain valve is provided with temperature
Spend sensor.
Compared with prior art, the beneficial effects of the present invention are:
Evaporator and superheater of the invention heats rock by the way of tube side steam using shell side, improves the steady of operation
It is qualitative, it quickly can cut off steam and reduce the possibility that fused salt solidifies, meanwhile, the big volume of shell side effectively increases steam
Yield, while being to advance by gravity direction by the flow path designs of fused salt, in this way with each class of traffic control valve ining conjunction with when control,
Heat exchange effect can be adjusted in a certain range, and when needing to shut down, can quick salt discharge under gravity, avoid in pipeline
It coagulates, meanwhile, using the high-temperature steam flow path and tank body progress Rapid Cleaning in steamdrum, avoid remaining.And it is logical
The setting of vapour-discharge tube is crossed, optionally the fused salt blown back is directly discharged to except cold tank, avoids introducing in tank body
Excessive vapor or impurity.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of photo-thermal power generation steam generating system of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
As shown, steam purge formula photo-thermal electricity steam generating system of the invention, including evaporator 2, steam-water separator 3
With superheater 4, the evaporator and superheater respectively includes being vertically arranged and top is formed with fused salt fused salt import lower part shape
At the tank body 11 for having fused salt to export, and it is correspondingly arranged the pipe type heat transfer mechanism of tank interior, the heat exchanger of the superheater
The steam (vapor) outlet side of structure is provided with steamdrum 6, and the fused salt outlet of hot tank 5 is successively through molten salt pipeline and superheater, evaporator and cold
Tank 1 is connected to, and is connected to the controllable steam inlet tube 7 being connected to the steamdrum by the outlet side of the hot melt salt pump.
Wherein, to improve salt discharge speed, the outlet height highest of the hot melt salt pump, the fused salt entrance of cold tank evaporates
The fused salt outlet of device, the fused salt import of evaporator, the fused salt outlet of superheater, superheater entrance and heat the fused salt of salt pump
Outlet height successively increases, and the molten salt pipeline relative level of connection is obliquely installed, and connects by the fused salt entrance side of the cold tank
There is the vapour-discharge tube 6 controllably opened or closed.
Evaporator and superheater of the invention heats salt by the way of tube side steam using shell side, improves the steady of operation
It is qualitative, it quickly can cut off steam and reduce the possibility that fused salt solidifies, meanwhile, the big volume of shell side effectively increases steam
Yield, while being to advance by gravity direction by the flow path designs of fused salt, in this way with each class of traffic control valve ining conjunction with when control,
Heat exchange effect can be adjusted in a certain range, and when needing to shut down, can quick salt discharge under gravity, avoid in pipeline
It coagulates, meanwhile, using the high-temperature steam flow path and tank body progress Rapid Cleaning in steamdrum, avoid remaining.And it is logical
The setting of vapour-discharge tube is crossed, optionally the fused salt blown back is directly discharged to except cold tank, avoids introducing in tank body
Excessive vapor or impurity.
Specifically, the heat exchange mechanisms include it is multiple be arranged in axially extending in the tank body and mutually protect
The S curve formula heat exchanger tube 12 for holding interval, point for being correspondingly arranged at tank base and top and being connected to respectively with the heat exchanger tube
With chamber 13 and collecting chamber 14.
Replace traditional spiral coil using S curve formula heat exchanger tube, more convenient, the distribution at its both ends is installed in setting
Tank interior can be arranged in chamber and collecting chamber simultaneously, and the heat exchange in different form difference path finally mixes, again into
It is discharged after row heat exchange, discharge quality is stable and effectively increases yield, can efficiently use the amount of heat contained in high-temperature molten salt.
To realize the collection of steam and temporary, the steamdrum 6 be arranged in the top of the evaporator and with it is described
The collecting chamber of superheater be connected to through steam pipe 61, safety discharge valve is provided at the top of the steamdrum and is connected to steam turbine
Steam outlet pipe 62, and pressure controller, the steam inlet tube and institute are set on the steam fused salt outlet
It is connect by the steam outlet pipe stated.Filter screen is provided in the steam pipe to carry out possible contaminant filter simultaneously.
Using external attached type steamdrum, by the cooperation of pressure controller and safety discharge valve, when the vapour pressure in steamdrum
After power reaches the pressure value of setting, steam is exported to carry out acting output；When system stalls, gravity salt discharge is first used, then
Fused salt is blown back using high-temperature gas, blows off tank body and pipeline.
Specifically, the tank body of the evaporator and superheater is cylindrical shape, it is fixed on the inner wall of circle tube tank body
There is inside spin plate, the height of the inside spin plate is in 20-40cm.
By the way that inside spin plate is arranged in inner tank wall, at least fused salt of formula surrounding place side increases screw trend, can have
Effect prevents temperature dead zone, avoids the occurrence of topical hypothermia, and can effectively prevent bubble and generate and adhere to, and guarantees that effectively heat exchange is empty
Between.
Further, it is provided with heating chamber set on the outside of the evaporator and superheater, in the heating chamber set
Outside is provided with insulating layer, is provided with electric heating coil pipe in the heating chamber set.It is set at the top that the heating chamber covers
It is equipped with drain valve, the fused salt outlet side of the drain valve is provided with temperature sensor.
Evaporator and superheater are preheated using the form of electric heating coil pipe, especially when tube wall temperature effectively risen
Height, generation solidification is formed hardened when fused salt being avoided to enter, and drain valve is arranged at top, temperature increases when heated, and drain valve is beaten
Portion gas spilling is opened, after passing through robust detection qualification in discharge outlet side temperature sensor sensing temperature and tank body, Ji Keting
It only heats, closes drain valve and air is avoided to enter, realize the micro-vacuum of heating chamber set, reduce heat dissipation.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of steam purge formula photo-thermal electricity steam generating system, which is characterized in that including evaporator, steam-water separator and overheat
Device, the evaporator and superheater respectively include being vertically arranged and top is formed with fused salt fused salt import lower part and is formed with fused salt
The tank body of outlet, and it is correspondingly arranged the pipe type heat transfer mechanism of tank interior, the steam of the heat exchange mechanisms of the superheater goes out
Mouth side is provided with steamdrum, and the fused salt outlet of hot tank is successively connected to through molten salt pipeline with superheater, evaporator and cold tank, described
It heats and is connected to the controllable steam inlet tube being connected to the steamdrum by the outlet side of salt pump.
2. steam purge formula photo-thermal electricity steam generating system as described in claim 1, which is characterized in that heat the outlet of salt pump
Height highest, fused salt outlet, the fused salt import of evaporator, the fused salt outlet of superheater, mistake of the fused salt entrance, evaporator of cold tank
The entrance of hot device and the fused salt outlet height for heating salt pump successively increase, and the molten salt pipeline relative level inclination of connection is set
It sets.
3. steam purge formula photo-thermal electricity steam generating system as claimed in claim 2, which is characterized in that the cold tank melts
The vapour-discharge tube controllably opened or closed is connected to by salt entrance side.
4. steam purge formula photo-thermal electricity steam generating system as described in claim 1, which is characterized in that the heat exchange mechanisms
Including multiple S curve formula heat exchanger tubes being arranged in axially extending in the tank body and keep interval mutually, it is correspondingly arranged
The distribution cavity and collecting chamber being connected at tank base and top and respectively with the heat exchanger tube.
5. steam purge formula photo-thermal electricity steam generating system as claimed in claim 4, which is characterized in that the steamdrum is set
It sets the top in the evaporator and is connected to the collecting chamber of the superheater through steam pipe, set at the top of the steamdrum
It is equipped with safety discharge valve and is connected to the steam outlet pipe of steam turbine, and pressure control is set on the steam fused salt outlet
It is connect by device processed, the steam inlet tube and the steam outlet pipe.
6. steam purge formula photo-thermal electricity steam generating system as claimed in claim 5, which is characterized in that in the steam pipe
Inside it is provided with filter screen.
7. steam purge formula photo-thermal electricity steam generating system as described in claim 1, which is characterized in that the evaporator and
The tank body of superheater is cylindrical shape, and inside spin plate is fixed on the inner wall of circle tube tank body.
8. steam purge formula photo-thermal electricity steam generating system as claimed in claim 7, which is characterized in that the inside spin plate
Height in 20-40cm.
9. steam purge formula photo-thermal electricity steam generating system as described in claim 1, which is characterized in that in the evaporator
With heating chamber set is provided on the outside of superheater, insulating layer is provided with outside the described heating chamber set, in the heating chamber
Electric heating coil pipe is provided in set.
10. steam purge formula photo-thermal electricity steam generating system as claimed in claim 9, which is characterized in that in the heating
The top of chamber set is provided with drain valve, and the fused salt outlet side of the drain valve is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710813291.XA CN109489022A (en) | 2017-09-11 | 2017-09-11 | Steam purge formula photo-thermal electricity steam generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710813291.XA CN109489022A (en) | 2017-09-11 | 2017-09-11 | Steam purge formula photo-thermal electricity steam generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489022A true CN109489022A (en) | 2019-03-19 |
Family
ID=65687783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710813291.XA Pending CN109489022A (en) | 2017-09-11 | 2017-09-11 | Steam purge formula photo-thermal electricity steam generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489022A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147084A (en) * | 1962-03-08 | 1964-09-01 | Shell Oil Co | Tubular catalytic reactor with cooler |
| GB1275298A (en) * | 1968-08-16 | 1972-05-24 | Combustion Eng | Vapor generator for operation by liquid metal or molten salts |
| CN1853766A (en) * | 2005-04-28 | 2006-11-01 | 浙江工业大学 | Reactor of fixed bed for strong exothermal reaction |
| CN102182997A (en) * | 2011-01-30 | 2011-09-14 | 杭州锅炉集团股份有限公司 | Binary working medium combined type solar heat absorber and supporting device |
| CN203131781U (en) * | 2013-04-07 | 2013-08-14 | 华北电力大学 | Single-tank heat accumulation and steam generation integrated device |
| CN103511208A (en) * | 2013-09-25 | 2014-01-15 | 青海中控太阳能发电有限公司 | Molten salt steam generating system capable of variable load operation within full-parameter range |
| CN207196451U (en) * | 2017-09-11 | 2018-04-06 | 甘肃光热发电有限公司 | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam |
-
2017
- 2017-09-11 CN CN201710813291.XA patent/CN109489022A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147084A (en) * | 1962-03-08 | 1964-09-01 | Shell Oil Co | Tubular catalytic reactor with cooler |
| GB1275298A (en) * | 1968-08-16 | 1972-05-24 | Combustion Eng | Vapor generator for operation by liquid metal or molten salts |
| CN1853766A (en) * | 2005-04-28 | 2006-11-01 | 浙江工业大学 | Reactor of fixed bed for strong exothermal reaction |
| CN102182997A (en) * | 2011-01-30 | 2011-09-14 | 杭州锅炉集团股份有限公司 | Binary working medium combined type solar heat absorber and supporting device |
| CN203131781U (en) * | 2013-04-07 | 2013-08-14 | 华北电力大学 | Single-tank heat accumulation and steam generation integrated device |
| CN103511208A (en) * | 2013-09-25 | 2014-01-15 | 青海中控太阳能发电有限公司 | Molten salt steam generating system capable of variable load operation within full-parameter range |
| CN207196451U (en) * | 2017-09-11 | 2018-04-06 | 甘肃光热发电有限公司 | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5602306B2 (en) | Solar boiler and solar power plant using the same | |
| CN102817799B (en) | Tower type Tesla turbine solar power generation device | |
| KR101399714B1 (en) | Heat exchanger for steam generation for a solar-thermal power plant | |
| CN205779517U (en) | A kind of Novel wire focused solar energy combined generating system | |
| CN207064167U (en) | A kind of line-focusing solar couples heat generating system | |
| CN102278828B (en) | High-temperature air and molten salt composite heat absorber | |
| JP5692557B1 (en) | Solar heat exchanger | |
| CN105423576B (en) | The overtemperature protection system and method for excessive heating protection of solar energy hot-cast socket heat dump | |
| CN208238244U (en) | A kind of boiler with baffle heater | |
| CN101995081A (en) | Novel microwave water heating device | |
| CN207196451U (en) | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam | |
| CN207196447U (en) | The stable type steam generating system of photo-thermal power generation | |
| CN109489022A (en) | Steam purge formula photo-thermal electricity steam generating system | |
| CN207196450U (en) | System occurs for photo-thermal electricity high-efficiency steam | |
| CN206144725U (en) | Solar energy steam heat electric system | |
| CN109489023A (en) | Photo-thermal electricity high-efficiency steam generating system and control method | |
| CN202152177U (en) | Plug-in steam pipe ash discharge hopper heater | |
| WO2010070702A1 (en) | Power generator utilizing natural energy | |
| KR20200060856A (en) | Solar Module assisted Heat Pump System | |
| CN106194615A (en) | Solar steam heat and power system | |
| CN109357418A (en) | A kind of cylinder formula fused salt heat absorber device and starting method | |
| CN109838770A (en) | Photo-thermal power generation steam generating system | |
| CN104314780A (en) | Novel power generation system with function of converting solar heat into heat energy of steam | |
| CN103968572A (en) | Compact liquid-tube vacuum tube water heater compatible with phase change heat storage function | |
| CN209355210U (en) | Full load steam generating system for solar energy thermo-power station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |