CN212457459U - Modularization insulation construction suitable for tower light and heat power station heat absorber - Google Patents
Modularization insulation construction suitable for tower light and heat power station heat absorber Download PDFInfo
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- CN212457459U CN212457459U CN202020974979.3U CN202020974979U CN212457459U CN 212457459 U CN212457459 U CN 212457459U CN 202020974979 U CN202020974979 U CN 202020974979U CN 212457459 U CN212457459 U CN 212457459U
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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
Abstract
The utility model discloses a modularization insulation construction suitable for tower light and heat power station heat absorber, including setting up the modularization heat preservation in heat absorber tube panel side of being shaded, the modularization heat preservation pass through braced frame fix between heat absorber tube panel and braced frame and modularization heat preservation and heat absorber tube panel contact of closely laminating, wherein, the modularization heat preservation includes a plurality of sub-insulation module. The utility model discloses thermal insulation construction for tower light and heat power station heat absorber back of conventionality improves and optimal design, with pipe panel back keep warm according to pipe panel structural design divide into many strides, the heat preservation module of multilayer and polylith, for the high altitude that is applicable to the heat absorber arranges the demand, the heat preservation adopts the combination of multilayer stereoplasm insulation material to form, its installation bears on the braced frame of pipe panel, only the contact of closely laminating with the heat absorber pipe panel, modular pipe panel heat preservation is suitable for the field installation in light and heat power station heat absorber early stage and the maintenance in later stage to be changed.
Description
Technical Field
The utility model relates to a solar-thermal power generation's technical field, more specifically say, relate to a modularization insulation construction suitable for tower light and heat power station heat absorber.
Background
For a photo-thermal power station, the rear-end power generation principle is similar to that of thermal power, but the photo-thermal power station is much more complex than the thermal power station in terms of heat collection, how to realize efficient utilization of the painstakingly collected solar heat is extremely important, and how to reduce unnecessary heat loss is also very critical.
In a tower-type solar photo-thermal power generation system, a heat absorber arranged at the top of a heat absorption tower is one of core devices for realizing photo-thermal conversion of a power station, and safe and efficient operation of the heat absorber is of great significance to the power station. The heat absorber is divided into a light-facing side and a backlight side, the light-facing side is directly irradiated by light spots reflected by a mirror field for heat absorption and energy conversion, and the backlight side is used for reducing heat loss by laying heat preservation so as to improve the operating efficiency of the heat absorber.
However, for the tower-type heat absorber, especially for the heat absorber using molten salt as heat absorbing working medium, the laying of the heat preservation on the back of the tube panel can not be implemented with reference to the water wall tube panel of the thermal power boiler, mainly because the structures of the two are greatly different. The boiler water wall tube panel needs to adopt the membrane type wall tube panel, and the heated tube clearance is sealed through the band steel connection promptly, and the purpose prevents that the inside flue gas of furnace from leaking, and its outside heat preservation adopts flexible insulation material more, is fixed in on the heat preservation metalwork of welding on the tube panel to expand and contract together with the tube panel is heated. However, for the tower-type heat absorber, because the heat flux density distribution on the surface of the tube panel is extremely uneven, the heated tubes need to adopt an independent light tube structure, the purpose is to avoid tearing flat steel or tubes due to uneven heating and expansion, and meanwhile, in the operation process of the heat absorber, the heated tubes can expand or deform to different degrees due to uneven heating, so that gaps are generated among the tubes, and the flexible heat preservation on the back of the tube panel can be scattered and cracked under the long-term action of high-altitude strong wind load. It is understood that similar conditions have occurred in the early domestic and already in operation of photothermal power stations. Moreover, because the operating pressure of the molten salt heat absorber is low, in order to reduce temperature difference and thermal stress, the heated pipe is mostly a thin-walled pipe with extremely high cost, if a heat-insulating metal piece is directly welded or fixed on the pipe, the pipe is easily welded or damaged, and the pipe replacement can further increase the related cost.
In conclusion, due to the special installation and structural requirements of the tower type photothermal power station heat absorber, the heat insulation can not adopt the conventional heat insulation material and installation mode.
Disclosure of Invention
To the condition that exists among the prior art, the utility model discloses combine special structure of tower light and heat power station heat absorber and installation requirement to carry out the optimal design to heat preservation of tube panel back, provide a modularization insulation construction suitable for tower light and heat power station heat absorber.
The utility model provides a modularization insulation construction suitable for tower light and heat power station heat absorber, including setting up the modularization heat preservation in heat absorber tube panel side of being shaded, the modularization heat preservation pass through braced frame fix between heat absorber tube panel and braced frame and modularization heat preservation and heat absorber tube panel contact of closely laminating, wherein, the modularization heat preservation includes a plurality of sub-insulation module.
According to the utility model is suitable for an embodiment of modularization insulation construction of tower light and heat power station heat absorber, the modularization heat preservation divide into a plurality of strides, and every stride modularization heat preservation divide into a plurality of layers, and every layer of modularization heat preservation divide into a plurality of pieces, and wherein, every modularization heat preservation is a sub-insulation module.
According to the utility model is suitable for an embodiment of modular insulation construction of tower light and heat power station heat absorber, adopt the installation of staggered joint seam pressing mode between adjacent stride, adjacent layer and the adjacent piece of modularization heat preservation.
According to the utility model is suitable for an embodiment of modular insulation construction of tower light and heat power station heat absorber, sub-insulation module includes high temperature heat preservation, well low temperature heat preservation and the outer plywood of heat preservation, heat absorber tube panel backlight sets up is hugged closely to the high temperature heat preservation, well low temperature heat preservation arranges between two parties, the outer plywood setting of heat preservation is in the outside.
According to the utility model is suitable for an embodiment of modular insulation construction of tower light and heat power station heat absorber, high temperature heat preservation, well low temperature heat preservation and the outer plywood of heat preservation pass through the heat preservation mounting and perforate fixedly, high temperature heat preservation adopts the counter bore design in order to hold the head of heat preservation mounting.
According to an embodiment of the modular insulation structure for the tower-type photo-thermal power station heat absorber, the high-temperature insulation layer and the medium-low temperature insulation layer are made of hard insulation materials, and the hard insulation materials are calcium silicate boards, ceramic fiber boards or nano microporous insulation boards; the outer plate of the heat-insulating layer is a metal plate.
According to the utility model is suitable for an embodiment of modularization insulation construction of tower light and heat power station heat absorber, braced frame adopts shaped steel to form through the fixing bolt equipment, braced frame is used for fixing heat absorber tube panel and modularization heat preservation.
According to the utility model discloses an embodiment of modularization insulation construction of tower light and heat power station heat absorber, the sub-insulation module of modularization heat preservation constitutes integrative after-fixing through flat mounting and heat preservation mounting on the braced frame, wherein, flat mounting is installed the outside of the outer plywood of heat preservation sets up to the multilayer and arranges.
Compared with the conventional scheme, the utility model discloses thermal insulation construction for tower light and heat power station heat absorber back of conventionality has improved and optimal design, keep warm to divide into according to the tube panel structural design with tube panel back multispan, the heat preservation module of multilayer and polylith, for the high altitude that is applicable to the heat absorber arranges the demand, the heat preservation adopts the combination of multilayer stereoplasm insulation material to form, its installation bears on the braced frame of tube panel, only closely laminating the contact with the heat absorber tube panel, modular tube panel heat preservation is suitable for the field installation of light and heat power station heat absorber earlier stage and the maintenance in later stage to be changed.
Drawings
Fig. 1 shows a schematic diagram of an overall structure of a modular insulation structure suitable for a tower-type photothermal power station heat absorber installed on a tube panel according to an exemplary embodiment of the present invention.
Fig. 2 shows a schematic structural view of a modular insulation structure suitable for a tower-type thermal power station heat absorber according to an exemplary embodiment of the present invention.
Fig. 3A and 3B show schematic structural views of a first sub-insulation module and a second sub-insulation module, respectively.
Fig. 4A shows a view from a in fig. 3B, and fig. 4B shows a schematic top view of fig. 4A.
Description of reference numerals:
1-heat absorber header, 2-heat absorber tube panel, 3-modular insulation layer, 31-first sub-insulation module, 32-second sub-insulation module, 311/321-high temperature insulation layer, 312/322-medium and low temperature insulation layer, 313/323-insulation layer outer plate, 4-support frame, 51/52-fixing bolt, 61/62/63-insulation layer fixing piece and 7-flat fixing piece.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The following is earlier to the utility model discloses a modular insulation construction of tower light and heat power station heat absorber carries out the detailed description.
The utility model discloses a many places improve, and the global design thinking does: firstly, the material of the heat-insulating layer is a hard heat-insulating material with higher mechanical strength rather than a flexible material, so that the tearing damage under the long-term action of high-altitude wind load is prevented; secondly, the heat-insulating layer is divided into a plurality of spans, layers and a plurality of sub heat-insulating modules according to the structure, so that the manufacture, the processing and the installation are convenient; and thirdly, the heat-insulating layer is formed by combining multiple layers of heat-insulating materials, an outer plate of the heat-insulating layer is laid on the outer side of the heat-insulating layer, and is fixed and borne on a supporting frame of the tube panel through a fixing piece, the heat-insulating layer is directly fixed on the thin-wall heated tube without a welding metal part and is tightly attached and contacted with the heated tube of the tube panel of the heat absorber, and therefore welding penetration or damage to the tube can be avoided. The integral heat insulation structure scheme is convenient for early-stage field installation and later-stage maintenance and replacement.
Fig. 1 shows according to the utility model discloses an overall structure schematic diagram of modular insulation construction suitable for tower light and heat power station heat absorber installs on the tube panel, and fig. 2 shows according to the utility model discloses an exemplary embodiment's modular insulation construction's of tower light and heat power station heat absorber structural schematic diagram.
As shown in fig. 1 and 2, according to the exemplary embodiment of the present invention, the modular insulation structure for a tower-type thermal absorber of a photovoltaic plant is suitable for designing and installing a back insulation layer of a tube panel of a tower-type thermal absorber of a photovoltaic plant. Specifically, this modularization insulation construction suitable for tower light and heat power station heat absorber is including setting up the modularization heat preservation 3 in heat absorber tube panel side of being shaded, and modularization heat preservation 3 passes through braced frame 4 to be fixed between heat absorber tube panel 2 and braced frame 4 and modularization heat preservation 3 and the contact of closely laminating of heat absorber tube panel 2, and wherein, modularization heat preservation 3 includes a plurality of sub-insulation module. In addition, heat absorber header 1 is connected to both the upper and lower sides of heat absorber tube panel 2.
For the heat absorber arranged at high altitude in the tower type photothermal power station, the tube panel is divided into a light side and a backlight side, the light side is irradiated by incident light spots of a receiving mirror field to absorb heat, and the backlight side needs to be laid with a heat insulation layer to insulate the heat absorber so as to reduce heat loss. Because the particularity of heat absorber structure, the utility model discloses a modularization heat preservation 3 is fixed in on the inside main steel construction through braced frame 4, and wherein modularization heat preservation 3 is fixed in between heat absorber pipe screen 2 and braced frame 4, and modularization heat preservation 3 only closely laminates the contact with heat absorber pipe screen 2, does not install modularization heat preservation 3 through the conventional mode of welding or fixed metalwork on the pipe screen.
According to the structural design needs of heat absorber pipe screen, the utility model provides a modularization heat preservation 2 is from last to being divided into a plurality of strides extremely down, and every modularized heat preservation of striding is divided into a plurality of layers, and every layer of modularization heat preservation divide into a plurality of pieces, and every piece size can be according to the wide and insulation material size comprehensive consideration of screen of heat absorber pipe screen and decide. Wherein each modular insulation layer is a sub-insulation module.
In order to reduce installation gap and heat waste, the utility model discloses in preferably adopt the stagger joint seam pressing mode installation between adjacent stride, adjacent layer and the adjacent piece of modular heat preservation 2.
Fig. 3A and 3B show schematic structural views of the first and second sub-thermal insulation modules 31 and 32, respectively. As shown in fig. 3A and 3B, the utility model discloses a sub-thermal insulation module includes high temperature heat preservation 311/321, well low temperature heat preservation 312/322 and heat preservation outer plate 313/323, and heat absorber tube panel 2 is hugged closely to high temperature heat preservation 311/321 and is shaded the side setting, and well low temperature heat preservation 312/322 arranges placed in the middle of, and heat preservation outer plate 313/323 sets up in the outside. The outer plate 313/323 of the insulating layer may be a metal plate, such as a thin-walled steel plate.
And the high-temperature heat-insulating layer 311/321, the medium-low temperature heat-insulating layer 312/322 and the heat-insulating layer outer plate 313/323 are fixed through the heat-insulating layer fixing piece 61/62/63 by punching. Preferably, high temperature insulation layer 311/321 adopts the counter bore design in order to hold the head of insulation layer mounting 61/62/63, avoids the tip of insulation layer mounting to expose the inseparable laminating that influences modularization insulation layer and heat absorber tube panel, and insulation layer mounting 61/62/63 can be high temperature resistant bolt. In addition, the hole spacing of each layer of the sub-thermal insulation module is not too large or too small, and the hole spacing is determined according to comprehensive consideration of thermal insulation material characteristics, load, overall structure, economy and the like.
In order to meet the application condition of high-altitude arrangement of the heat absorber, the high-temperature heat-insulating layer 311/321 and the medium-low temperature heat-insulating layer 312/322 are made of hard heat-insulating materials, and the hard heat-insulating materials are calcium silicate boards, ceramic fiber boards or nano microporous heat-insulating boards.
The utility model discloses well braced frame 4 who adopts shaped steel to form through the equipment of fixing bolt 51/52, and on-the-spot need not weld and simple to operate is swift, and braced frame 4 is used for fixed heat absorber pipe panel 2 and modularization heat preservation 3. The modular heat insulation layer on the back of the heat absorber tube panel is provided with profile steel of a support frame from top to bottom in a spanning mode and is used for bearing the load of the modular heat insulation layer on the upper portion in the vertical direction, and the load of all the modular heat insulation layers and the load of the heat insulation metal part are borne by the support frame 4 on the whole.
Fig. 4A shows a view from a in fig. 3B, and fig. 4B shows a schematic top view of fig. 4A.
As shown in fig. 3A to 4B, the sub-insulation modules of the modular insulation layer 3 are fixed to the support frame 4 after being integrated with the insulation layer fixing members 61/62/63 by the flat fixing members 7, and bear part of the load while restricting the horizontal shaking of the insulation layer. The flat fixing piece 7 is installed on the outer side of the outer plate 313/323 of the heat insulation layer and arranged in a multi-layer mode, and the flat fixing piece can be a flat steel structure.
Therefore, the utility model discloses modularization heat preservation among the modularization insulation construction is suitable for the field installation of early stage and the maintenance in later stage to be changed, can satisfy tower light and heat power station heat absorber special installation and structural requirement well.
The present invention will be further described with reference to the following specific embodiments.
The modular heat preservation layer 3 on the backlight side of the heat absorber tube panel 2 in the embodiment is integrally designed into a modular structure and mainly comprises the following components:
the heat insulation layer comprises a high-temperature heat insulation layer 311/321, a medium-low temperature heat insulation layer 312/322, a heat insulation thin-wall steel plate 313/323, a heat insulation layer fixing piece 61/62/63, a flat fixing piece 7 and the like, and further comprises a supporting frame 4 and the like for fixing the heat absorber tube panel 2 and the modular heat insulation layer 3; the modular insulating layer 3 is divided into a plurality of spans from top to bottom, each span contains a plurality of layers, each layer is divided into a plurality of blocks, and staggered seam pressing is adopted between adjacent layers and between blocks, as shown in fig. 2 and 4B.
The modularized heat-insulating layer 3 is made of hard heat-insulating materials, such as calcium silicate boards, ceramic fiber boards or nano microporous heat-insulating boards; each heat preservation module 31/32 is formed by combining a high-temperature heat preservation layer 311/321, a medium-low temperature heat preservation layer 312/322 and a heat preservation layer outer plate 313/323. The high-temperature-resistant heat-insulating layers 311 and 321 are tightly attached to the back sides of the tube panels, the middle-low-temperature heat-insulating layer 312/322 is arranged in the center, the outer side of the heat-insulating layer is provided with a heat-insulating layer outer plate 313/323 made of thin-wall steel plates, and the three are fixed through the heat-insulating layer fixing piece 61/62/63 made of high-temperature-resistant bolts in a perforation mode; the high-temperature insulating layer 311/321 adopts a counter bore design, so that the end part of a fixing bolt is prevented from being exposed to influence the close fit of the modular insulating layer 3 and the heat absorber tube panel 2;
the heat preservation modules 31/32 are assembled by pressing seams, and are fixed on the support frame 4 of the tube panel after being integrated with the heat preservation layer fixing pieces 61/62/63 through the flat fixing pieces 7, as shown in fig. 4A and 4B; wherein, the flat fixing piece 7 which adopts flat steel is arranged outside the outer plate 313/323 of the heat-insulating layer and can be arranged in multiple layers; the modular heat insulation layer 3 is provided with profile steel in the vertical direction across the upper and lower parts, and is used for bearing the load of the upper modular heat insulation layer 3 in the vertical direction, and the load of the modular heat insulation layer 3 and the required heat insulation metal part are borne by the supporting frame 4; the supporting frame 4 is formed by assembling section steel through fixing bolts 51/52, welding is not needed on site, and the installation is convenient and rapid.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. The utility model provides a modularization insulation construction suitable for tower light and heat power station heat absorber, its characterized in that, is including setting up the modularization heat preservation in heat absorber tube panel side in a poor light, the modularization heat preservation passes through braced frame to be fixed between heat absorber tube panel and braced frame and modularization heat preservation and heat absorber tube panel in close contact with of laminating, wherein, the modularization heat preservation includes the sub-thermal insulation module of a plurality of.
2. The modular insulation structure for a tower-type solar-thermal power station heat absorber according to claim 1, wherein the modular insulation layer is divided into a plurality of spans, each span of the modular insulation layer is divided into a plurality of layers, each layer of the modular insulation layer is divided into a plurality of blocks, and each block of the modular insulation layer is a sub-insulation module.
3. The modular insulation structure suitable for the tower type photothermal power station heat absorber of claim 2, wherein the adjacent spans, the adjacent layers and the adjacent blocks of the modular insulation layer are installed by adopting a staggered seam pressing mode.
4. The modular insulation structure suitable for the tower type photothermal power station heat absorber according to any one of claims 1 to 3, wherein the sub-insulation module comprises a high-temperature insulation layer, a medium-low temperature insulation layer and an insulation layer outer plate, the high-temperature insulation layer is arranged close to the backlight side of the heat absorber tube panel, the medium-low temperature insulation layer is arranged in the middle, and the insulation layer outer plate is arranged on the outer side.
5. The modular insulation structure suitable for the tower-type photothermal power station heat absorber of claim 4, wherein the high temperature insulation layer, the medium and low temperature insulation layer and the insulation layer outer plate are fixed by insulation layer fixing part through perforation, and the high temperature insulation layer adopts counter bore design to accommodate the head of the insulation layer fixing part.
6. The modular insulation structure suitable for the tower type photo-thermal power station heat absorber is characterized in that the high-temperature insulation layer and the medium-low temperature insulation layer are made of hard insulation materials, and the hard insulation materials are calcium silicate boards, ceramic fiber boards or nano microporous insulation boards; the outer plate of the heat-insulating layer is a metal plate.
7. The modular insulation structure for the tower-type photothermal power station heat absorber according to claim 1, wherein the supporting frame is formed by assembling section steel through fixing bolts, and is used for fixing the heat absorber tube panel and the modular insulation layer.
8. The modular insulation structure for the tower-type solar-thermal power station heat absorber as claimed in claim 5, wherein the sub-insulation modules of the modular insulation layer are integrally fixed on the supporting frame through flat fixing pieces and insulation layer fixing pieces, wherein the flat fixing pieces are installed on the outer side of the outer plates of the insulation layer and are arranged in a multi-layer arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020974979.3U CN212457459U (en) | 2020-06-02 | 2020-06-02 | Modularization insulation construction suitable for tower light and heat power station heat absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020974979.3U CN212457459U (en) | 2020-06-02 | 2020-06-02 | Modularization insulation construction suitable for tower light and heat power station heat absorber |
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| Publication Number | Publication Date |
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| CN212457459U true CN212457459U (en) | 2021-02-02 |
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| CN202020974979.3U Active CN212457459U (en) | 2020-06-02 | 2020-06-02 | Modularization insulation construction suitable for tower light and heat power station heat absorber |
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| CN (1) | CN212457459U (en) |
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