CN209783020U - Conical header structure of tower type photo-thermal power generation fused salt heat absorber - Google Patents
Conical header structure of tower type photo-thermal power generation fused salt heat absorber Download PDFInfo
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- CN209783020U CN209783020U CN201920522044.9U CN201920522044U CN209783020U CN 209783020 U CN209783020 U CN 209783020U CN 201920522044 U CN201920522044 U CN 201920522044U CN 209783020 U CN209783020 U CN 209783020U
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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
Tower light and heat electricity generation fused salt heat absorber toper type collection case structure. At present, the heat absorber header is a long cylinder type, the flow speed of fused salt at the inlet of a pipeline on the header is high, the static pressure is low, the fused salt flows into a pipe screen along with the flow of the fused salt towards the tail end of the header, the flow of the fused salt at the tail end of the header is low, the flow speed is low, the static pressure is high, the distribution of the fused salt flow in the pipe screen is deviated, and the pipe is easily decomposed and corroded or explodes due to the over-temperature fused salt. The utility model discloses a constitution includes: the heat absorber pipe panel (6) comprises an inlet header (2), the inlet header is of a conical structure, a group of pipe joints are axially installed on the inlet header and are respectively connected with the upper end of the pipe panel (3), the lower end of the pipe panel is connected with an outlet header (4) through the pipe joints, the outlet header is of a conical structure, the bottom of the outlet header is connected with an outlet pipeline (5), and the top of the inlet header is connected with an inlet pipeline (1). The utility model is used for tower solar-thermal power generation fused salt heat absorber toper type collection case structure.
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 cone-shaped collection box structure of tower-type solar-thermal power generation fused salt heat absorber.
background art:
The heat absorber header of prior art is the header similar to boiler water-cooled wall or over heater tube panel at present, the header is long tube type, length is equal to heat absorber tube panel width basically, pipeline entrance fused salt flow is big flow velocity big on the header, the dynamic pressure is big, the static pressure is little, flow toward the header end on one side along with the fused salt, flow into in the tube panel on one side, the terminal fused salt flow of header is little, the velocity of flow is little, the static pressure is big, because the reason of header static pressure characteristic, it has the deviation just so caused fused salt flow distribution in the tube panel, because energy provider solar energy flows the instantaneity and the inhomogeneity in time and space, easily lead to the local super high temperature fused salt decomposition of pipe or lead to pipe inefficacy explosion when the flow deviation is big in the heat absorber tube panel.
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 discharged to corrode a tube panel of the heat absorber, so the outlet design temperature is generally determined to be 565 ℃, and the uniformity of the flow of the molten salt in the solar heat absorber tube needs to be improved as much as possible in order to avoid local over-temperature decomposition or over-low local flow and the phenomenon of over-temperature of the tube wall.
The utility model has the following contents:
The utility model aims at providing a tower solar-thermal power generation fused salt heat absorber toper type collection case structure.
The above purpose is realized by the following technical scheme:
The utility model provides a tower solar-thermal power generation fused salt heat absorber toper type collection case structure, its constitution includes: the heat absorber pipe screen, the heat absorber pipe screen including the entry header, the entry header be circular cone type structure, the axial of entry header on install a set of coupling, the coupling be connected with the upper end of pipe screen respectively, the pipe screen lower extreme pass through the coupling and export the header connection, the export header be circular cone type structure, export header bottom and outlet pipe connection, entry header top and inlet pipe connection.
Tower solar-thermal power generation fused salt heat absorber toper type collection case structure, the tube panel be a set of nickel base alloy pipe, the intraductal fused salt that is equipped with of nickel base alloy, the inlet pipeline the material of export pipeline be the stainless steel pipe, the inlet collection case the export collection case adopt the stainless steel raw materials preparation.
the utility model has the advantages that:
1. The utility model relates to a tower light and heat electricity generation fused salt heat absorber toper type collection box structure, in order to reduce or avoid because the flow deviation that collection box static pressure characteristic arouses, this structure adopts a toper type collection box structure, replace conventional collection box structure, this structure can effectively reduce the interior working medium of heat absorber at the ascending flow resistance of collection box flow direction, thereby improve heat absorber pipe-screen internal flow distribution homogeneity, the phenomenon of flow deviation when big in having avoided the heat absorber pipe-screen easily leads to the local super temperature fused salt decomposition of pipe to corrode the pipe or lead to pipe inefficacy explosion takes place.
The utility model discloses a tower solar-thermal power generation fused salt heat absorber pipe panel includes the inlet pipeline, the entry collection case, the heat absorber pipe panel, the export collection case, the outlet pipeline is constituteed, in the pipeline entrance, increase collection incasement internal diameter can reduce collection incasement working medium speed rapidly, the static pressure of increase here, along with the fused salt on one side toward the terminal flow of collection case, on one side toward flowing into in the pipe panel, the terminal fused salt flow of collection case is little, adopt the tapered collection case, the collection incasement internal diameter dwindles gradually, can make the increase of flow velocity here, the static pressure reduces, adjust the resistance of former conventional collection case.
The utility model discloses a structure can effectively adjust the interior working medium of heat absorber at the ascending flow resistance of collection case flow direction to improve heat absorber pipe-in-screen flow distribution homogeneity.
the utility model discloses a fused salt working medium flows into the entry header through the inlet pipeline in the heat absorber pipe-screen, the entry header is connected with the pipe-screen, solar radiation light that comes at pipe-screen surface absorption mirror field reflection, the fused salt temperature risees, then flow to the export header, flow out from the export pipeline, flow deviation in order to reduce the heat absorber pipe-screen, reduce because the deviation that the header arouses, set up a tapered header structure, can effectively adjust the resistance characteristic, reduce the deviation, improve the intraductal fused salt flow homogeneity of heat absorber.
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 the material of inlet pipeline, outlet pipeline as the stainless steel pipe simultaneously, and entry collection case, export collection case set up to the stainless steel raw materials, can effectively improve overall structure's corrosion resistance, improve the life of tower solar-thermal power generation fused salt heat absorber coniform collection case structure.
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. container diagram of prior art
The specific implementation mode is as follows:
Example 1:
The utility model provides a tower solar-thermal power generation fused salt heat absorber toper type collection case structure, its constitution includes: heat absorber tube panel 6, the heat absorber tube panel including entry header 2, the entry header be circular cone type structure, the axial of entry header on install a set of coupling, the coupling be connected with the upper end of tube panel 3 respectively, tube panel lower extreme pass through the coupling and export the header 4 and be connected, the export header be circular cone type structure, export header bottom be connected with outlet pipe 5, entry header top be connected with inlet pipe 1.
example 2:
according to embodiment 1 tower solar-thermal power generation fused salt heat absorber tapered header structure, the tube panel be a set of nickel base alloy pipe, the intraductal fused salt that is equipped with of nickel base alloy, the inlet pipeline the material of outlet pipeline be the stainless steel pipe, the inlet header the outlet header adopt the stainless steel raw materials preparation.
The cone-shaped header structure of the tower type solar-thermal power generation fused salt heat absorber is characterized in that a plurality of pipes are connected to a cone-shaped header to form a pipe panel, the pipe panel of the heat absorber is directly exposed in the air, the pipe panel of the heat absorber is composed of an inlet pipeline, an inlet header, a pipe panel, an outlet header and an outlet pipeline, the pipe panel is composed of a certain number of pipes and pipe joints, the surface of the heat absorber receives the energy flux density of focused sunlight reflected by the ground, the solar heat is transferred to fused salt in the pipes of the heat absorber through radiation heat exchange, the fused salt gradually absorbs heat through a set system flow in the pipes, the outlet of the fused salt is heated to reach a design value, the fused salt comes to a heat storage tank on the ground, then the.
Claims (2)
1. The utility model provides a tower solar-thermal power generation fused salt heat absorber toper type collection case structure, its constitution includes: heat absorber pipe screen, characterized by: the heat absorber pipe panel include the entry header, the entry header be circular cone type structure, the axial of entry header on install a set of coupling, the coupling be connected with the upper end of pipe panel respectively, the pipe panel lower extreme pass through the coupling and be connected with the export header, the export header be circular cone type structure, export header bottom and outlet pipe connection, entry header top and inlet pipe connection.
2. the conical header structure of the tower type solar-thermal power generation molten salt heat absorber as claimed in claim 1, wherein: the tube panel is a group of nickel-based alloy tubes, molten salt is filled in the nickel-based alloy tubes, the inlet pipeline and the outlet pipeline are made of stainless steel tubes, and the inlet header and the outlet header are made of stainless steel raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522044.9U CN209783020U (en) | 2019-04-17 | 2019-04-17 | Conical header structure of tower type photo-thermal power generation fused salt heat absorber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920522044.9U CN209783020U (en) | 2019-04-17 | 2019-04-17 | Conical header structure of tower type photo-thermal power generation fused salt heat absorber |
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| CN209783020U true CN209783020U (en) | 2019-12-13 |
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| CN201920522044.9U Active CN209783020U (en) | 2019-04-17 | 2019-04-17 | Conical header structure of tower type photo-thermal power generation fused salt heat absorber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112116493A (en) * | 2020-10-29 | 2020-12-22 | 广东电科院能源技术有限责任公司 | Flow adjusting method and system for superheater of coal-fired power plant |
| CN112833562A (en) * | 2021-01-23 | 2021-05-25 | 赣州能创智能科技有限公司 | Heat collection method of solar heat collector |
| CN112833561A (en) * | 2021-01-23 | 2021-05-25 | 赣州能创智能科技有限公司 | Adjustable solar heat collector |
-
2019
- 2019-04-17 CN CN201920522044.9U patent/CN209783020U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112116493A (en) * | 2020-10-29 | 2020-12-22 | 广东电科院能源技术有限责任公司 | Flow adjusting method and system for superheater of coal-fired power plant |
| CN112116493B (en) * | 2020-10-29 | 2021-09-14 | 南方电网电力科技股份有限公司 | Flow adjusting method and system for superheater of coal-fired power plant |
| CN112833562A (en) * | 2021-01-23 | 2021-05-25 | 赣州能创智能科技有限公司 | Heat collection method of solar heat collector |
| CN112833561A (en) * | 2021-01-23 | 2021-05-25 | 赣州能创智能科技有限公司 | Adjustable solar heat collector |
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