CN207196451U - System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam - Google Patents
System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam Download PDFInfo
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- CN207196451U CN207196451U CN201721162924.7U CN201721162924U CN207196451U CN 207196451 U CN207196451 U CN 207196451U CN 201721162924 U CN201721162924 U CN 201721162924U CN 207196451 U CN207196451 U CN 207196451U
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Abstract
The utility model discloses a kind of easy-cleaning type photo-thermal electricity high-efficiency steam to occur system, including evaporator, steam-water separator and superheater, described evaporator and superheater include the tank body being vertically arranged and top exports formed with fused salt fused salt import bottom formed with fused salt respectively, 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 described superheater is provided with steamdrum, the fused salt of hot tank is exported successively through molten salt pipeline and superheater, evaporator connects with cold tank, the controllable steam inlet tube connected with described steamdrum is connected to by the outlet side of described hot melt salt pump.Rapid Cleaning is carried out using the high-temperature steam flow path in steamdrum and tank body, avoids remaining.And by the setting of vapour-discharge tube, optionally the fused salt blown back is directly discharged to outside cold tank, avoids introducing excessive vapor or impurity in tank body.
Description
Technical field
Photo-thermal electro-technical field is the utility model is related to, is occurred more particularly to a kind of easy-cleaning type photo-thermal electricity high-efficiency steam
System.
Background technology
Due to energy crisis and atmosphere pollution, countries in the world increase the input 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 gradually expands.Solar heat
Electricity generation system mainly has 4 types:Slot type, tower, dish-style and linear Fresnel form.At present, conventional solar energy thermal-power-generating
System is to be focused to sunshine reflection on heat collector using speculum, and the solar radiant energy of aggregation is changed into heat by heat collector
Working medium in heat collector and can be reached, heated working medium can directly evaporate (such as water) and produce power to promote power generation
Or heat energy is reached by hold over system and steam power system by corresponding heat transmission equipment.
Due to the complexity in the design of system hydraulic power, and accumulation of heat side by the use of water as heat transfer acting working medium directly be present
The difficulty in face, thus current solar heat power generation system typically with artificial oil or fused salt as accumulation of heat working medium of conducting heat, then by with
Steam generator heat exchange produces the power steam for being adapted 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 brought up into 450-
500 DEG C, power cycle efficiency is set to be more than 40%, the accumulation of heat temperature difference is more than 2.5 times.But such application at present is conventional binary
Salt, the salt fusing point is high, easily condenses frozen block, and especially when shutting down period, how quick and discharge, which totally turns into, is badly in need of what is solved
Problem.
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and provides a kind of steam purge formula light
System occurs for thermoelectricity high-efficiency steam.
Technical scheme is used by realize the purpose of this utility model：
System, including evaporator, steam-water separator and superheater occur for a kind of easy-cleaning type photo-thermal electricity high-efficiency steam, described
Evaporator and superheater includes being vertically arranged respectively and top exports formed with fused salt fused salt import bottom formed with fused salt
Tank body, and the pipe type heat transfer mechanism of tank interior is correspondingly arranged, the steam (vapor) outlet side of the heat exchange mechanisms of described superheater is set
Steamdrum is equipped with, the fused salt outlet of hot tank connects through molten salt pipeline with superheater, evaporator and cold tank successively, described hot melt salt
The controllable steam inlet tube connected with described steamdrum is connected to by the outlet side of pump.
The outlet height highest of salt pump is heated, fused salt entrance, the fused salt outlet of evaporator, the fused salt of evaporator of cold tank enter
Mouthful, the outlet of the fused salt of superheater, superheater entrance and heat the fused salt outlet height of salt pump and raise successively, the fused salt of connection
Pipeline relative level is obliquely installed.
The controllable vapour-discharge tube being turned on and off is connected to by the fused salt entrance side of described cold tank.
Described heat exchange mechanisms include multiple S for being arranged on axially extending in described tank body and keeping interval mutually
Curvilinear style heat exchanger tube, it is correspondingly arranged at tank base and top and the distribution cavity connected respectively with described heat exchanger tube and collection
Chamber.
Described steamdrum is arranged on the top of described evaporator and with the collecting chamber of described superheater through steam pipe
Connection, described steamdrum top are provided with safety discharge valve and are communicated to the steam outlet pipe of steam turbine, and in described steaming
Pressure controller is set on vapour fused salt outlet, and described steam inlet tube by described steam outlet pipe with connecing.
Screen pack is provided with described steam pipe.
Described evaporator and the tank body of superheater are cylindrical shape, and inside spin plate is fixed with the inwall of circle tube tank body
The height of described inside spin plate is in 20-40cm.
Heating chamber set is provided with the outside of described evaporator and superheater, guarantor is provided with outside described heating chamber set
Warm layer, electrical heating coil pipe is provided with described heating chamber set.
The top that described heating chamber covers is provided with drain valve, the fused salt outlet side of described drain valve is provided with temperature
Spend sensor.
Compared with prior art, the beneficial effects of the utility model are：
Evaporator and superheater of the present utility model, rock is heated by the way of tube side steam using shell side, improves operation
Stability, can fast shut-off steam and reduce the possibility that fused salt solidifies, meanwhile, the big volume of shell side effectively increases
The yield of steam, while be to be advanced by gravity direction by the flow path designs of fused salt, so combined control with each class of traffic control valve
When processed, heat exchange effect can be adjusted within the specific limits, and when needing to shut down, its can quick salt discharge under gravity, avoid
Condensed in pipeline, meanwhile, Rapid Cleaning is carried out using the high-temperature steam flow path in steamdrum and tank body, avoids remaining.
And by the setting of vapour-discharge tube, optionally the fused salt blown back is directly discharged to outside cold tank, avoided in tank body
It is interior to introduce excessive vapor or impurity.
Brief description of the drawings
Fig. 1 show the structural representation of photo-thermal power generation steam generating system of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
As illustrated, system, including evaporator 2, carbonated drink occur for easy-cleaning type photo-thermal electricity high-efficiency steam of the present utility model
Separator 3 and superheater 4, described evaporator and superheater include being vertically arranged respectively and top is formed with fused salt fused salt import
The tank body 11 that bottom exports formed with fused salt, and the pipe type heat transfer mechanism of tank interior is correspondingly arranged, described superheater
The steam (vapor) outlet side of heat exchange mechanisms is provided with steamdrum 6, and the fused salt outlet of hot tank 5 is successively through molten salt pipeline and superheater, evaporation
Device is connected with cold tank 1, and the controllable steam inlet tube connected with described steamdrum is connected to by the outlet side of described hot melt salt pump
7。
Wherein, to improve salt discharge speed, the outlet height highest of described hot melt salt pump, the fused salt entrance of cold tank, evaporate
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 is raised successively, and the molten salt pipeline relative level of connection is obliquely installed, and is connect by the fused salt entrance side of described cold tank
There is the controllable vapour-discharge tube 6 being turned on and off.
Evaporator and superheater of the present utility model, salt is heated by the way of tube side steam using shell side, improves operation
Stability, can fast shut-off steam and reduce the possibility that fused salt solidifies, meanwhile, the big volume of shell side effectively increases
The yield of steam, while be to be advanced by gravity direction by the flow path designs of fused salt, so combined control with each class of traffic control valve
When processed, heat exchange effect can be adjusted within the specific limits, and when needing to shut down, its can quick salt discharge under gravity, avoid
Condensed in pipeline, meanwhile, Rapid Cleaning is carried out using the high-temperature steam flow path in steamdrum and tank body, avoids remaining.
And by the setting of vapour-discharge tube, optionally the fused salt blown back is directly discharged to outside cold tank, avoided in tank body
It is interior to introduce excessive vapor or impurity.
Specifically, described heat exchange mechanisms include multiple being arranged on axially extending in described tank body and protecting mutually
The S curve formula heat exchanger tube 12 at interval is held, point for being correspondingly arranged at tank base and top and being connected respectively with described heat exchanger tube
With chamber 13 and collecting chamber 14.
Substitute traditional spiral coil using S curve formula heat exchanger tube, set and more convenient, the distribution at its both ends is installed
Chamber and collecting chamber, can be arranged on tank interior simultaneously, and the heat exchange in multi-form difference path finally mixes, entered again
Discharged after row heat exchange, discharge steady quality and effectively increase yield, can effectively utilize the amount of heat contained in high-temperature molten salt.
To realize the collection of steam and temporary, described steamdrum 6 be arranged on the top of described evaporator and with it is described
The collecting chamber of superheater connected through steam pipe 61, safety discharge valve is provided with the top of described steamdrum and is communicated to steam turbine
Steam outlet pipe 62, and pressure controller, described steam inlet tube and institute are set on described steam fused salt outlet
Connect by the steam outlet pipe stated.Screen pack is provided with described 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；During system stalls, first with gravity salt discharge, then
Fused salt is blown back using high-temperature gas, blows off tank body and pipeline.
Specifically, the tank body of described evaporator and superheater is cylindrical shape, fixed on the inwall of circle tube tank body
There is inside spin plate, the height of described inside spin plate is in 20-40cm.
By setting the fused salt increase screw trend of inside spin plate, at least formula surrounding place side in inner tank wall, can have
Effect prevents temperature dead band, avoids the occurrence of topical hypothermia, and can effectively prevent that bubble from producing and attachment, guarantee effectively heat exchange are empty
Between.
Further, heating chamber set is provided with the outside of described evaporator and superheater, in described heating chamber set
Outside is provided with heat-insulation layer, and electrical heating coil pipe is provided with described heating chamber set.Set at the top that described heating chamber covers
Drain valve is equipped with, the fused salt outlet side of described drain valve is provided with temperature sensor.
Evaporator and superheater are preheated using the form of electrical heating coil pipe, especially when tube wall temperature effectively risen
Height, avoid fused salt from entering fashionable generation solidification and formed hardened, drain valve is set at top, temperature raises in heating, and drain valve beats
Portion gas spilling is opened, after robust detection is qualified in by floss hole side temperature sensor sensing temperature and tank body, you can stop
Only heat, close drain valve and avoid air from entering, realize the micro-vacuum of heating chamber set, reduce radiating.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (10)
1. system occurs for a kind of easy-cleaning type photo-thermal electricity high-efficiency steam, it is characterised in that including evaporator, steam-water separator and mistake
Hot device, described evaporator and superheater include being vertically arranged respectively and top goes out formed with fused salt import bottom formed with fused salt
The tank body of mouth, and it is correspondingly arranged the pipe type heat transfer mechanism of tank interior, the steam (vapor) outlet of the heat exchange mechanisms of described superheater
Side is provided with steamdrum, and the fused salt outlet of hot tank connects through molten salt pipeline with superheater, evaporator and cold tank successively, heats salt pump
Outlet side by be connected to the controllable steam inlet tube connected with described steamdrum.
2. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 1, it is characterised in that heats going out for salt pump
Open height highest, the fused salt outlet of the fused salt entrance, evaporator of cold tank, the fused salt import of evaporator, the fused salt outlet of superheater,
The entrance of superheater and the fused salt outlet height of hot melt salt pump are raised successively, and the molten salt pipeline relative level of connection, which tilts, to be set
Put.
3. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 2, it is characterised in that described cold tank
The controllable vapour-discharge tube being turned on and off is connected to by fused salt entrance side.
4. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 1, it is characterised in that described heat exchanger
Structure includes multiple S curve formula heat exchanger tubes for being arranged on axially extending in described tank body and keeping interval mutually, corresponding to set
Put the distribution cavity and collecting chamber connected respectively at tank base and top and with described heat exchanger tube.
5. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 4, it is characterised in that described steamdrum
It is arranged on the top of described evaporator and is connected with the collecting chamber of described superheater through steam pipe, at the top of described steamdrum
It is provided with safety discharge valve and is communicated to the steam outlet pipe of steam turbine, and pressure is set on described steam fused salt outlet
Controller, described steam inlet tube by described steam outlet pipe with connecing.
6. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 5, it is characterised in that in described steam
Screen pack is provided with pipe.
7. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 1, it is characterised in that described evaporator
Tank body with superheater is cylindrical shape, and inside spin plate is fixed with the inwall of circle tube tank body.
8. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 7, it is characterised in that described inside spin
The height of plate is in 20-40cm.
9. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 1, it is characterised in that in described evaporation
Heating chamber set is provided with the outside of device and superheater, heat-insulation layer is provided with outside described heating chamber set, in described heating
Electrical heating coil pipe is provided with chamber set.
10. system occurs for easy-cleaning type photo-thermal electricity high-efficiency steam as claimed in claim 9, it is characterised in that adds in described
The top of hot chamber set is provided with drain valve, and the fused salt outlet side of described drain valve is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721162924.7U CN207196451U (en) | 2017-09-11 | 2017-09-11 | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721162924.7U CN207196451U (en) | 2017-09-11 | 2017-09-11 | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam |
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| Publication Number | Publication Date |
|---|---|
| CN207196451U true CN207196451U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721162924.7U Active CN207196451U (en) | 2017-09-11 | 2017-09-11 | System occurs for easy-cleaning type photo-thermal electricity high-efficiency steam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489022A (en) * | 2017-09-11 | 2019-03-19 | 甘肃光热发电有限公司 | Steam purge formula photo-thermal electricity steam generating system |
-
2017
- 2017-09-11 CN CN201721162924.7U patent/CN207196451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489022A (en) * | 2017-09-11 | 2019-03-19 | 甘肃光热发电有限公司 | Steam purge formula photo-thermal electricity steam generating system |
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