CN110081624A - Solar energy thermal-power-generating heat-absorption device header heat insulating device - Google Patents
Solar energy thermal-power-generating heat-absorption device header heat insulating device Download PDFInfo
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- CN110081624A CN110081624A CN201910285969.0A CN201910285969A CN110081624A CN 110081624 A CN110081624 A CN 110081624A CN 201910285969 A CN201910285969 A CN 201910285969A CN 110081624 A CN110081624 A CN 110081624A
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- heat
- layer
- heat insulating
- solar energy
- power
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of solar energy thermal-power-generating heat-absorption device header heat insulating devices, including incubator and the incubator is set by the heat insulating reflecting layer outside hot spot irradiation side, wherein: the inner wall of the siding of the incubator is equipped with insulating, and the insulating is disposed with adiabator layer and heat-resistant coating layer from the inner wall of the siding from inside to outside；Gap between the heat insulating reflecting layer and the siding forms heat dissipation channel.The adiabator layer is composite construction, including at least one layer of flexibly thermal insulation material layer and at least one layer of hard insulating material layer, the two are overlapped mutually.Good heat insulating of the present invention, easy for installation, high reliablity, and can effectively prevent high temperature damage caused by solar facula overflows.
Description
Technical field
The present invention relates to solar energy thermal-power-generating heat-absorption device header incubators, in particular to solar energy thermal-power-generating fused salt heat dump
The heat insulation and preservation device of header.
Background technique
Heat dump is one of the core equipment of tower type solar electricity generation system.Its effect is the height for reflecting heliostat field
Heat flow density radiation energy is converted into the interior energy of heat transfer medium.Heat dump is typically mounted at up to a hundred meters of heat absorption top of tower, by several
Heat dump unit (tube panel) composition, each unit upper and lower ends respectively have a heat-proof device.In heat dump operation, high-temperature molten salt
It, to prevent heat loss in pipeline, can need to arrange a set of thermal insulation separation outside header followed by inlet/outlet pipe, header and absorbing pipe
Thermal.Simultaneously mirror field solar facula overflow, if shining directly on thermal insulation material, surface temperature can reach 500-600 DEG C with
On, it will cause the damage of insulation.
In the prior art, such as patent document (CN202267255U) discloses a kind of solar light-heat power-generation heat dump system
The heat preservation box structure of system, the technical solution include thermal insulation box body built-in frame and absorbing pipe, and more absorbing pipes are parallel across guarantor
Incubator cabinet, and it is equipped with radiation baffle in incubator side, but since its heat insulation layer structure is simple, heat insulation effect is poor, merely
Radiation baffle is set, and thermal insulation box body surface temperature is still higher in the case where long-time is irradiated.
In the prior art, such as patent document (CN103673307A) discloses a kind of heat absorption of tower type solar energy thermal power generation
The technical solution of device.The program gives a kind of main building block of heat dump, including lower header, attemperator, upper collecting chamber,
And absorbing pipe, absorbing pipe both ends are respectively equipped with upper collecting chamber and lower header, are all provided in absorbing pipe and upper collecting chamber and lower header junction
There is attemperator.But the attemperator is relatively simple, and heat insulation effect is limited, and installs more difficult.
In consideration of it, overcoming defect present in the above-mentioned prior art is this field urgent problem to be solved.
Summary of the invention
In order to overcome in the prior art solar energy thermal-power-generating heat-absorption device header heat it is easy to lose, and mirror field sunlight spilling make
At the excessively high technical problem easy to damage of header surface temperature, a kind of easy for installation the present invention provides good heat insulating, reliability
Height, and the header heat insulating device that the solar facula irradiation that can effectively prevent spilling causes high temperature to damage.
To achieve the goals above, the invention discloses a kind of solar energy thermal-power-generating heat-absorption device header heat insulating device,
Including incubator and the incubator is set by the heat insulating reflecting layer outside hot spot irradiation side, in which: the wall of the incubator
The inner wall of plate is equipped with insulating, and the insulating is disposed with heat preservation from the inner wall of the siding from inside to outside
Material layer and heat-resistant coating layer；Gap between the heat insulating reflecting layer and the siding forms heat dissipation channel.
Further, the adiabator layer is composite construction, including at least one layer of flexibly thermal insulation material layer and at least one
Layer hard insulating material layer, the two are overlapped mutually.
Further, the heat-resistant coating layer is close to the hard insulating material layer, and installation is more convenient.
Further, the heat insulating reflecting layer by least 1 piece of high temperature resistant heat insulation board group at, can by hot spot irradiate side guarantor
Incubator cabinet all protects.
Further, the heat insulating reflecting layer surface is painted with high temperature reflection paint.
Further, the high temperature reflection paint is made of the ageing-resistant inorganic non-metallic material that can reflect sunlight.
It further, further include support frame, the heat insulating reflecting layer is fixed on the siding by support frame as described above.Institute
Support frame is stated to be made of several U-shaped steels or several band steels.
Further, the heat dissipation channel includes the air intake of the air outlet slit and its bottom at the top of it.
Further, the value range of the space D between the heat insulating reflecting layer and the siding are as follows: d≤D≤10d,
In, d is the heat insulating reflecting thickness degree.The preferred value of D is 2d.
Technical solution advantage provided by the invention is:
1, the incubator is set, heat dump header heat loss can be effectively reduced；
2, the heat-resistant coating layer envelopes the adiabator layer, can prevent the adiabator layer from falling bits, rises
To buffer action；
3, the heat insulating reflecting layer is set, can prevent from overflowing because of mirror field sunlight, shine directly on incubator, cause to protect
Incubator and insulating damage deformation；
4, the heat dissipation channel can form air flowing in inside, described in reducing when the heat insulating reflecting layer heats up
Support frame temperature further avoids incubator and insulating damage deformation.
5, flexibly thermal insulation material anti-seismic performance is good, can effectively reduce buffering, and good heat insulating, layer hard insulating material can
Facilitate fixed installation etc., craftsmanship is higher, the composite construction being superimposed using flexibly thermal insulation material layer and hard insulating material layer, can
The advantages of with comprehensive the two, while guaranteeing craftsmanship and heat preservation, anti-seismic performance.
6, d≤D≤10d is set, had not only guaranteed the heat dissipation effect of heat dissipation channel, but also guarantee header heat insulating device volume not
It can be excessive.
7, integrated artistic is good, facilitates construction.
Detailed description of the invention
Comprising in the present specification and constituting the attached drawing of this specification a part and showing and meet the device of the invention and side
The embodiment of method, and meet advantages of the present invention and principle for explaining together with detailed description.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of first preferred embodiment of header heat insulating device of the present invention；
Fig. 2 is the structural schematic diagram of second preferred embodiment of header heat insulating device of the present invention.
Description of symbols:
1, heat insulating reflecting layer；
2, support frame；
3, siding；
4, insulating；
5, header；
6, absorbing pipe.
Specific embodiment
The specific embodiment that the invention will now be described in detail with reference to the accompanying drawings.However, the invention is not limited to be described below
Embodiment.In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other
Not constituting conflict can be combined with each other, and technical concept of the invention can with other well-known techniques or with those well-known techniques
Identical other technologies combination is implemented.
A kind of one preferred embodiment of solar energy thermal-power-generating heat-absorption device header heat insulating device provided by the invention, such as
Shown in Fig. 1, including incubator and incubator is set by the heat insulating reflecting layer 1 outside hot spot irradiation side, in which: the wall of incubator
The inner wall of plate 3 is equipped with insulating 4, and insulating 4 is disposed with heat preservation from the inner wall of the siding 3 from inside to outside
Material layer and heat-resistant coating layer；Gap between heat insulating reflecting layer 1 and siding 3 forms heat dissipation channel.
Adiabator layer is composite construction, including being tightly attached to one layer of flexibly thermal insulation material layer of 3 inner wall of siding, and is superimposed upon
Above flexibly thermal insulation material layer, and one layer of hard insulating material layer being close to heat-resistant coating layer.
Layer flexible layer also can be selected for adiabator layer and/or multilayer hard layer is overlapped mutually, it is only necessary to keep heat-resistant coating layer tight
Hard insulating material layer is pasted, to facilitate installation.
In the present embodiment, it is right side in figure that hot spot, which irradiates side, and heat insulating reflecting layer 1 is by 2 pieces of high temperature resistant heat insulation board groups at by light
The thermal insulation box body of spot irradiation side all protects.The difference that side can also be irradiated by hot spot, adjusts the position of heat insulating reflecting layer 1
With the quantity of high temperature resistant heat insulation plate.
Further, 1 external coating of heat insulating reflecting layer has high temperature reflection paint, and the high temperature reflection paint is by that can reflect sunlight
Ageing-resistant inorganic non-metallic material is made.
It further, further include support frame 2, heat insulating reflecting layer 1 is fixed on siding 3 by support frame 2.In the present embodiment
It is fixed by the way of welding, it is also possible to which the methods of bolt is fixed.
In the present embodiment, support frame 2 is made of several U-shaped steels, and the program is fixed reliable and easy for construction.
Fig. 2 shows the scheme of second preferred embodiment of the invention, support frame 2 is made of several band steels.
As Fig. 1 and Fig. 2 shows solar energy thermal-power-generating heat-absorption device header heat insulating device, the heat dissipation channel includes it
The air outlet slit at top and the air intake of its bottom.In the heat dump course of work, the air in heat dissipation channel is heated, due to
Atmospheric density can become smaller after heating, flow up so as to cause the air being heated along heat dissipation channel and from positioned at heat dissipation channel
The air outlet slit at top flows out, while part cold air is endlessly filled into from the air intake for being located at heat dissipation channel bottom,
Circulating to form air in heat dissipation channel with cooling support 2, and make the temperature of support frame 2 maintain 400 DEG C with
Under, so that incubator and insulating will not be caused to damage deformation.
Further, the space D between the characteristic size D of heat dissipation channel, i.e. heat insulating reflecting layer 1 and siding 3, value are as follows: D=
3d, wherein d is 1 thickness of heat insulating reflecting layer.
If the characteristic size D value of heat dissipation channel is too small, such as D < d, then the heat dissipation effect of heat dissipation channel is bad；If heat dissipation
The characteristic size D value in channel is excessive, such as D > d, and it will cause the volume of heat insulating device is excessive.
Solar energy thermal-power-generating heat-absorption device header heat insulating device provided by the invention, the characteristic size D of heat dissipation channel
Value range are as follows: d≤D≤10d.
Verified, the preferred value of the characteristic size D of heat dissipation channel is D=2d, with this condition, is ensureing thermal insulation separation hot charging
Set volume it is suitable while, the cooling effect of heat dissipation channel is optimal.The value of D be 9d when, the cooling effect of heat dissipation channel also compared with
It is good, but whole header heat insulating device volume is larger.
Compared with prior art, solar energy thermal-power-generating heat-absorption device header heat insulating device provided by the present invention has
Following advantages:
1, the incubator is set, 5 heat loss of heat dump header can be effectively reduced；
2, the heat-resistant coating layer envelopes the adiabator layer, can prevent the adiabator layer from falling bits, rises
To buffer action；
3, the heat insulating reflecting layer 1 is set, can prevent from overflowing because of mirror field sunlight, shine directly on incubator, cause
Incubator and the damage deformation of the insulating 4；
4, the heat dissipation channel can form air flowing in inside, described in reducing when the heat insulating reflecting layer 1 heats up
2 temperature of support frame further avoids incubator and the damage deformation of the insulating 4.
5, flexibly thermal insulation material anti-seismic performance is good, can effectively reduce buffering, and good heat insulating, layer hard insulating material can
Facilitate fixed installation etc., craftsmanship is higher, the composite construction being superimposed using flexibly thermal insulation material layer and hard insulating material layer, can
The advantages of with comprehensive the two, while guaranteeing craftsmanship and heat preservation, anti-seismic performance.
6, d≤D≤10d is set, had not only guaranteed the heat dissipation effect of heat dissipation channel, but also guarantee header heat insulating device volume not
It can be excessive.
7, integrated artistic is good, facilitates construction.
Unless otherwise instructed, the herein presented qualifier similar to " first ", " second " is not meant that suitable to the time
The restriction of sequence, quantity or importance, and be used for the purpose of the technical characteristic and another technology in the technical program
Feature is mutually distinguished.Similarly, the modifier similar to " about ", " approximatively " occurred before number herein generally comprises this
Number, and its specific meaning should understand in conjunction with context meaning.Similarly, only there is the name of specific quantity quantifier modification
Otherwise word should be regarded as again including plural form comprising singular herein, both may include in the technical scheme
The singular technical characteristic, also may include a plurality of technical characteristics.
In the explanation of embodiments above, directional terminology "upper", "lower", " left side ", " right side ", "top", "bottom", " perpendicular
To ", the use of " transverse direction " and " lateral " etc. only merely for the purpose convenient for description, should not be taken as restrictive.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of solar energy thermal-power-generating heat-absorption device header heat insulating device, which is characterized in that including incubator and be arranged in institute
Incubator is stated by the heat insulating reflecting layer outside hot spot irradiation side, in which:
The inner wall of the siding of the incubator is equipped with insulating, and the insulating is from the inner wall of the siding from interior
Adiabator layer and heat-resistant coating layer are disposed with to outer；
Gap between the heat insulating reflecting layer and the siding forms heat dissipation channel.
2. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that the heat preservation
Material layer is composite construction, including at least one layer of flexibly thermal insulation material layer and at least one layer of hard insulating material layer, the two it is mutual
Superposition.
3. solar energy thermal-power-generating heat-absorption device header heat insulating device as claimed in claim 2, which is characterized in that described heat-resisting
Clad is close to the hard insulating material layer.
4. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that described heat-insulated
Reflecting layer by least 1 piece of high temperature resistant heat insulation board group at.
5. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that described heat-insulated
Reflecting layer external coating has high temperature reflection paint.
6. solar energy thermal-power-generating heat-absorption device header heat insulating device as claimed in claim 5, which is characterized in that the high temperature
Reflection paint is made of the ageing-resistant inorganic non-metallic material that can reflect sunlight.
7. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that further include branch
Support, the heat insulating reflecting layer are fixed on the siding by support frame as described above.
8. solar energy thermal-power-generating heat-absorption device header heat insulating device as claimed in claim 7, which is characterized in that the support
Frame is made of several U-shaped steels or several band steels.
9. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that the heat dissipation
Channel includes the air intake of the air outlet slit and its bottom at the top of it.
10. solar energy thermal-power-generating heat-absorption device header heat insulating device as described in claim 1, which is characterized in that it is described every
The value range of space D between heat-reflecting layer and the siding are as follows: d≤D≤10d, wherein d is the heat insulating reflecting thickness degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285969.0A CN110081624A (en) | 2019-04-10 | 2019-04-10 | Solar energy thermal-power-generating heat-absorption device header heat insulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285969.0A CN110081624A (en) | 2019-04-10 | 2019-04-10 | Solar energy thermal-power-generating heat-absorption device header heat insulating device |
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| CN110081624A true CN110081624A (en) | 2019-08-02 |
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| CN201910285969.0A Pending CN110081624A (en) | 2019-04-10 | 2019-04-10 | Solar energy thermal-power-generating heat-absorption device header heat insulating device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1475581A1 (en) * | 2003-05-09 | 2004-11-10 | Paul Scherrer Institut | Reactor for indirect utilization of external radiation heat |
| CN200964672Y (en) * | 2006-08-16 | 2007-10-24 | 田军县 | Outer wall insulated integrated ornamental board |
| CN101275427A (en) * | 2008-05-19 | 2008-10-01 | 湖南大学 | Assembled type roofing heat-proof device |
| CN101398231A (en) * | 2008-07-09 | 2009-04-01 | 广东工业大学 | Solar thermal power generating multifunctional equipment with heat absorption, heat storage and vapor generation function |
| CN202267253U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Built-in heat absorber of lower header |
| CN202267255U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Insulating box for tower-type heat absorber system capable of generating electricity from heat of solar energy |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
| CN108489122A (en) * | 2018-05-23 | 2018-09-04 | 东方电气集团东方锅炉股份有限公司 | A kind of tower type solar fused salt heat dump insulation construction |
| CN208595718U (en) * | 2018-06-08 | 2019-03-12 | 青岛鸿瑞电力工程咨询有限公司 | A kind of tower photo-thermal power station fused salt heat dump heat insulation structure |
-
2019
- 2019-04-10 CN CN201910285969.0A patent/CN110081624A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1475581A1 (en) * | 2003-05-09 | 2004-11-10 | Paul Scherrer Institut | Reactor for indirect utilization of external radiation heat |
| CN200964672Y (en) * | 2006-08-16 | 2007-10-24 | 田军县 | Outer wall insulated integrated ornamental board |
| CN101275427A (en) * | 2008-05-19 | 2008-10-01 | 湖南大学 | Assembled type roofing heat-proof device |
| CN101398231A (en) * | 2008-07-09 | 2009-04-01 | 广东工业大学 | Solar thermal power generating multifunctional equipment with heat absorption, heat storage and vapor generation function |
| CN202267253U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Built-in heat absorber of lower header |
| CN202267255U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Insulating box for tower-type heat absorber system capable of generating electricity from heat of solar energy |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
| CN108489122A (en) * | 2018-05-23 | 2018-09-04 | 东方电气集团东方锅炉股份有限公司 | A kind of tower type solar fused salt heat dump insulation construction |
| CN208595718U (en) * | 2018-06-08 | 2019-03-12 | 青岛鸿瑞电力工程咨询有限公司 | A kind of tower photo-thermal power station fused salt heat dump heat insulation structure |
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Application publication date: 20190802 |