CN209783021U - Tower-type photo-thermal power generation fused salt heat absorber cylindrical header device - Google Patents
Tower-type photo-thermal power generation fused salt heat absorber cylindrical header device Download PDFInfo
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- CN209783021U CN209783021U CN201920522981.4U CN201920522981U CN209783021U CN 209783021 U CN209783021 U CN 209783021U CN 201920522981 U CN201920522981 U CN 201920522981U CN 209783021 U CN209783021 U CN 209783021U
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- heat absorber
- collection case
- fused salt
- header
- cylindrical
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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
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Abstract
The utility model relates to a cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber. Conventional heat absorber collection case is long cartridge type, and length is equal to heat absorber tube panel width, and pipeline entrance fused salt flow is big flow velocity on the collection case, and the static pressure is little, flows toward the collection case end on one side along with the fused salt, flows into in the tube panel on one side, and the terminal fused salt velocity of flow of collection case is little, and the static pressure is big, has caused the fused salt to have the deviation in the distribution of flow in the tube panel, leads to the pipe to lose efficacy to explode the pipe very easily. The utility model discloses a constitution includes: the heat absorber tube panel (6) comprises a cylindrical header, a group of tube joints are installed on the circumference of the cylindrical header, the tube joints are respectively connected with the upper end and the lower end of the tube panel (3), an inlet header (2) is arranged above the tube panel, the top of the inlet header is connected with an inlet pipeline (1), an outlet header (4) is arranged below the tube panel, and the bottom of the outlet header is connected with an outlet pipeline (5). The utility model is used for cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber.
Description
The technical field is as follows:
The utility model relates to a solar energy tower-type solar-thermal power generation technical field, concretely relates to cylindrical collection case device of tower-type solar-thermal power generation fused salt heat absorber.
Background art:
With the gradual increase of the proportion of renewable energy sources, solar thermal power generation attracts more and more attention, from the technical point of photo-thermal power generation, a heat absorption carrier with excellent performance can improve the utilization rate of solar energy, reduce the danger in the operation process of equipment and reduce the production cost, at present, the fused salt used by solar thermal power stations at home and abroad is mainly SolarSalt fused salt (40% KNO3+60% NaNO3), the decomposition temperature of the fused salt is 593 ℃, a heat absorber in tower photo-thermal power generation uses the SolarSalt fused salt as a heat carrier, the fused salt absorbs sunlight reflected by a heliostat on the ground, and the temperature of the fused salt gradually increases. The efficiency of the whole power plant can be improved by improving the outlet temperature of the molten salt in the heat absorber, but when the actual temperature of the molten salt exceeds the upper use limit, the molten salt begins to become unstable and slowly react, corrosive gas containing chloride ions and nitrate radicals is released to corrode a heat absorber tube panel, so the outlet design temperature is generally set to 565 ℃, and the uniformity of the flow of the molten salt in the solar heat absorber tube is improved as much as possible in order to avoid the phenomena of local overtemperature decomposition or over-low local flow and overtemperature of the tube wall;
Conventional heat absorber collection case is similar to the collection case of boiler water-cooled wall or over heater tube panel, and the collection case is long cartridge type, and length is equivalent to heat absorber tube panel width basically, and the pipeline entrance fused salt flow is big flow velocity on the collection case, and the dynamic pressure is big, and the static pressure is little, flows toward the collection case end on one side along with the fused salt, flows in toward the tube panel on one side, and the terminal fused salt flow of collection case is little, and the velocity of flow is little, and the static pressure is big, because the reason of collection case static pressure characteristic, just so caused the fused salt and had the deviation in the distribution of flow in the tube panel. Due to instantaneity and nonuniformity of solar energy flow in time and space of an energy provider, when flow deviation in a heat absorber tube panel is large, local overtemperature molten salt of the tube is prone to decompose and corrode the tube or cause tube failure and tube explosion.
the utility model has the following contents:
The utility model aims at providing a cylindrical header device of tower solar-thermal power generation fused salt heat absorber.
The above purpose is realized by the following technical scheme:
the utility model provides a cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber, its constitution includes: the heat absorber pipe screen, the heat absorber pipe screen include cylindrical collection case, cylindrical collection case circumference on install a set of coupling, the coupling be connected with the upper and lower end of pipe screen respectively, pipe screen top be the entry collection case, entry collection case top be connected with the inlet pipe, pipe screen below be the export collection case, export collection bottom of the case portion and outlet pipe connected.
the cylindrical header device of tower solar-thermal power generation fused salt heat absorber, the tube panel be a set of nickel base alloy pipe, the intraductal fused salt that is equipped with of nickel base alloy, cylindrical header entry header export the header entry pipeline the material of export pipeline be the stainless steel pipe.
the utility model has the advantages that:
1. The utility model relates to a cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber, this structure adopt cylindrical collection case, can effectively reduce the interior working medium of heat absorber and at the ascending flow resistance of collection case flow direction to improve heat absorber tube panel internal flow distribution homogeneity, avoided in the heat absorber tube panel when flow deviation is big easily lead to the local overtemperature fused salt of pipe to decompose the phenomenon emergence of corroding the pipe or lead to pipe inefficacy booster.
The utility model discloses a fused salt working medium flows into the entry header through the inlet pipeline in the heat absorber pipe screen, and the entry header is connected with the pipe screen, and the solar radiation light that comes at pipe screen surface absorption mirror field reflection, fused salt temperature rise, then flow to the export header, flow out from the export pipeline, this structure reduces the heat absorber pipe screen in the flow deviation, reduces because the deviation that the header arouses.
the utility model discloses a heat absorber tube panel comprises a set of nickel base alloy pipe, adopts the nickel base alloy pipe to have better corrosion resisting property, prevents the corruption of fused salt to the heat absorber tube panel, still selects cylindrical collection case, entry collection case, export collection case, inlet pipeline, outlet pipeline's material simultaneously as the stainless steel pipe, can effectively improve overall structure's corrosion resistance, improves the life of the cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a simplified diagram of the header of the present invention.
FIG. 3 is a schematic diagram of a prior art header.
Wherein: 1. an inlet duct; 2. an inlet header; 3. a tube panel; 4. an outlet header; 5. an outlet conduit; 6. a heat absorber tube panel; 7. the prior art header diagram.
The specific implementation mode is as follows:
Example 1:
The utility model provides a cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber, its constitution includes: heat absorber pipe screen 6, the heat absorber pipe screen include cylindrical collection case, cylindrical collection case circumference on install a set of coupling, the coupling be connected with the upper and lower end of pipe screen 3 respectively, pipe screen top be entry header 2, entry header top be connected with inlet pipe 1, pipe screen below be export header 4, export header bottom be connected with outlet pipe 5.
Example 2:
according to embodiment 1 the cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber, the tube panel be a set of nickel base alloy pipe, the intraductal fused salt that is equipped with of nickel base alloy, cylindrical collection case, entry collection case, export collection case, entry pipeline, the material of export pipeline be the stainless steel pipe.
the cylindrical header device of tower solar-thermal power generation fused salt heat absorber connect a plurality of pipes to form the tube panel for cylindrical header, the heat absorber tube panel directly exposes in the air, the heat absorber tube panel is by the inlet pipeline, the inlet header, the tube panel, export header, the export pipeline is constituteed, wherein the tube panel comprises pipe and the coupling of a certain amount, the heat absorber surface accepts the focus sunlight energy flux density of ground reflection, in heat-transfer heat the fused salt in the heat absorber pipe with solar heat through radiation heat transfer, the fused salt is intraductal to absorb heat gradually through the system flow who sets for and heaies up the export and reach the design value, arrive the heat storage tank on ground, then transmit the working medium for thermodynamic cycle, drive the steam turbine again and do work and generate electricity.
Claims (2)
1. The utility model provides a cylindrical collection case device of tower solar-thermal power generation fused salt heat absorber, its constitution includes: heat absorber pipe screen, characterized by: the heat absorber pipe screen include cylindrical collection case, cylindrical collection case circumference on install a set of coupling, the coupling be connected with the upper and lower end of pipe screen respectively, pipe screen top be the entry collection case, entry collection case top be connected with the inlet pipe, pipe screen below be the export collection case, export collection bottom of the case portion and outlet pipe connected.
2. The cylindrical header device of tower solar-thermal power generation molten salt heat absorber of claim 1, characterized in that: the tube panel is a group of nickel-based alloy tubes, molten salt is filled in the nickel-based alloy tubes, and the cylindrical header, the inlet header, the outlet header, the inlet pipeline and the outlet pipeline are made of stainless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522981.4U CN209783021U (en) | 2019-04-17 | 2019-04-17 | Tower-type photo-thermal power generation fused salt heat absorber cylindrical header device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522981.4U CN209783021U (en) | 2019-04-17 | 2019-04-17 | Tower-type photo-thermal power generation fused salt heat absorber cylindrical header device |
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| Publication Number | Publication Date |
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| CN209783021U true CN209783021U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920522981.4U Active CN209783021U (en) | 2019-04-17 | 2019-04-17 | Tower-type photo-thermal power generation fused salt heat absorber cylindrical header device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923347A (en) * | 2021-01-20 | 2021-06-08 | 西安石油大学 | Novel annular array flow distribution device |
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2019
- 2019-04-17 CN CN201920522981.4U patent/CN209783021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923347A (en) * | 2021-01-20 | 2021-06-08 | 西安石油大学 | Novel annular array flow distribution device |
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