CN111397417A - Heat storage tank for 850 ℃ high-temperature sand - Google Patents
Heat storage tank for 850 ℃ high-temperature sand Download PDFInfo
- Publication number
- CN111397417A CN111397417A CN202010301542.8A CN202010301542A CN111397417A CN 111397417 A CN111397417 A CN 111397417A CN 202010301542 A CN202010301542 A CN 202010301542A CN 111397417 A CN111397417 A CN 111397417A
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- CN
- China
- Prior art keywords
- seal head
- storage tank
- conical seal
- heat storage
- sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 33
- 239000004576 sand Substances 0.000 title claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000004321 preservation Methods 0.000 claims abstract description 6
- 229910001570 bauxite Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011825 aerospace material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
A heat storage tank for 850 ℃ high-temperature sand relates to a heat storage tank. The invention aims to solve the problems that the existing heat storage tank is high in cost and is not suitable for large-scale popularization and use. The device comprises an upper conical end socket (2), a lower conical end socket (5), a cylinder body (3) and a supporting assembly, wherein the upper conical end socket (2), the cylinder body (3) and the lower conical end socket (5) are fixedly connected from top to bottom in sequence, and the supporting assembly is arranged at the lower part of the cylinder body (3); upper portion toper head (2), barrel (3) and lower part toper head (5) all include outer steel (10), heat preservation (11) and inlayer (12), and outer steel (10), heat preservation (11) and inlayer (12) are connected gradually from outer to interior and are arranged. The invention is used for energy storage and heat exchange of high-temperature sand.
Description
Technical Field
The invention relates to a heat storage tank, in particular to a heat storage tank for 850 ℃ high-temperature sand.
Background
With the gradual depletion of non-renewable resources such as coal, oil and the like, the energy crisis is approaching to the beginning, according to the current exploitation progress, China is used as the country with the most coal reserves in the world, China can also exploit coal for 80 years, and as the middle east region with the oil reserves accounting for more than half of the total amount in the world, the oil is also used up within 40 years. Thus, the use of various renewable energy sources by humans is becoming increasingly more profound.
The development of renewable energy technologies such as wind energy, solar energy and the like depends on weather, and an additional power supply mode or other cooperative technologies are required to be used for supporting the continuous and stable power supply effect. To this end, many researchers are seeking new materials and methods while continuing to improve these technologies.
Sand particles are gradually paid attention to in the technical field of energy storage as a common low-cost heat storage material, and compared with heat storage media such as molten salt, heat conduction oil and the like which are widely applied at present, sand has more stable chemical properties, can be used under the high-temperature condition of 1000 ℃, and can bring higher heat storage energy at higher temperature; the more important factor is that the cost of the sand is low, which is beneficial to reducing the cost investment of the heat storage technology.
The existing high-temperature heat storage tank has higher requirements on the performance of materials under the high-temperature condition, and is usually made of high-temperature-resistant aerospace materials, so that the high-temperature-resistant materials are high in cost, and the problem that the existing high-temperature heat storage tank is not suitable for large-scale popularization and use is solved.
Disclosure of Invention
The invention aims to solve the problems that the existing heat storage tank is high in cost and is not suitable for large-scale popularization and use. Further provides a heat storage tank for 850 ℃ high-temperature sand.
The technical scheme of the invention is as follows: a heat storage tank for high-temperature sand at 850 ℃ comprises an upper conical end socket 2, a lower conical end socket 5, a cylinder 3 and a support assembly, wherein the upper conical end socket 2, the cylinder 3 and the lower conical end socket 5 are fixedly connected in sequence from top to bottom, and the support assembly is arranged at the lower part of the cylinder 3; the upper conical seal head 2, the cylinder 3 and the lower conical seal head 5 respectively comprise outer layer steel 10, a heat insulation layer 11 and an inner layer 12, the outer layer steel 10, the heat insulation layer 11 and the inner layer 12 are sequentially connected from outside to inside, and the inner layer 12 is made of plastic or bauxite.
Further, the small end of the upper conical seal head 2 faces upwards, the large end of the upper conical seal head 2 faces downwards, and the large end of the upper conical seal head 2 is connected with the upper end of the cylinder 3.
Further, the big end of the lower conical seal head 5 faces upwards, the big end of the lower conical seal head 5 is connected with the lower end of the cylinder 3, and the small end of the lower conical seal head 5 faces downwards.
Furthermore, the device also comprises an inlet connecting pipe 1 and an outlet connecting pipe 8, wherein the inlet connecting pipe 1 is arranged at the small end of the upper conical sealing head 2, and the outlet connecting pipe 8 is arranged at the small end of the lower conical sealing head 5.
Furthermore, the heat-insulating layer further comprises a plurality of hook nails 9, and the outer layer steel 10, the heat-insulating layer 11 and the inner layer 12 are connected through the plurality of hook nails 9.
Further, the supporting component comprises a plurality of supporting units which are uniformly distributed at the lower part of the cylinder 3.
Further, every support unit all includes backing plate 4, backup pad 6 and bottom plate 7, and backup pad 6 is vertical to be set up, and the lower part of backing plate 4 and barrel 3 is passed through to the upper end of backup pad 6 and be connected, and the lower extreme of backup pad 6 is passed through bottom plate 7 and is connected with the ground.
Further, the bottom plate 7 is connected with the foundation through a plurality of foundation bolts.
Further, the backing plate 4, the support plate 6 and the bottom plate 7 are fixedly connected into a whole by welding.
Preferably, the number of the plurality of supporting units is 4 to 8.
Compared with the prior art, the invention has the following effects:
1. the invention has simple and compact structure and is convenient for production, manufacture and maintenance.
2. The outer layer of the solar heat collector is made of steel materials, the inner layer of the solar heat collector is made of plastic materials or bauxite, the price is low, and the cost of a heat storage technology is effectively reduced on the whole;
3. the invention is suitable for the heat storage process of a medium with higher temperature, and has higher heat storage energy.
4. The upper inlet and the lower outlet of the sand filling machine adopt gradually-expanding and gradually-contracting inclined cone structures, so that the sand filling machine is more beneficial to the discharge and discharge of sand media.
5. The invention adopts different materials from inside to outside, which not only meets the heat-resisting requirement of high-temperature medium, but also meets the requirement of strength.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partially enlarged view of the cylinder.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 2, and the heat storage tank for 850 ℃ high-temperature sand of the embodiment comprises an upper conical head 2, a lower conical head 5, a cylinder 3 and a support assembly, wherein the upper conical head 2, the cylinder 3 and the lower conical head 5 are fixedly connected in sequence from top to bottom, and the support assembly is installed at the lower part of the cylinder 3; the upper conical seal head 2, the cylinder 3 and the lower conical seal head 5 all comprise outer layer steel 10, a heat insulation layer 11 and an inner layer 12, and the outer layer steel 10, the heat insulation layer 11 and the inner layer 12 are sequentially connected from outside to inside.
The inner layer 12 of the present embodiment may be heat-resistant concrete or bauxite, in consideration of cost and heat-resistant properties.
The heat preservation layer 11 of this embodiment adopts the heat preservation rock wool material.
The second embodiment is as follows: referring to fig. 1, the present embodiment is described, in which the small end of the upper conical seal head 2 faces upward, the large end of the upper conical seal head 2 faces downward, and the large end of the upper conical seal head 2 is connected to the upper end of the cylinder 3. So set up, be convenient for upper portion toper head 2 and barrel and upper portion toper head 1 be connected. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: referring to fig. 1, the present embodiment is described, in which the large end of the lower conical seal head 5 faces upward, the large end of the lower conical seal head 5 is connected to the lower end of the cylinder 3, and the small end of the lower conical seal head 5 faces downward. So set up, be convenient for with being connected of barrel and lower part toper head. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1, and the embodiment further comprises an inlet connecting pipe 1 and an outlet connecting pipe 8, wherein the inlet connecting pipe 1 is installed on the small end of the upper conical seal head 2, and the outlet connecting pipe 8 is installed on the small end of the lower conical seal head 5. So set up, be convenient for be connected with other heat storage tank, form heat transfer circulation. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1, the present embodiment further includes a plurality of hook nails 9, and the outer layer steel 10, the insulation layer 11, and the inner layer 12 are connected by the plurality of hook nails 9. So set up, the connected mode is simple reliable. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: referring to fig. 1, the supporting assembly of the present embodiment includes a plurality of supporting units, and the plurality of supporting units are uniformly installed at the lower portion of the cylinder 3. So set up, be convenient for lift whole lower part toper head, for the external connection of export takeover provides sufficient space. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 1, each of the supporting units of the present embodiment includes a backing plate 4, a supporting plate 6 and a bottom plate 7, the supporting plate 6 is vertically disposed, an upper end of the supporting plate 6 is connected to a lower portion of the drum 3 through the backing plate 4, and a lower end of the supporting plate 6 is connected to a foundation through the bottom plate 7. So set up, simple structure supports firmly. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the present embodiment will be described with reference to fig. 1, and the bottom plate 7 of the present embodiment is connected to the foundation by a plurality of anchor bolts. So set up, connect simply convenient to detach. Other constitutions and connection relations are the same as those of any one of the first to seventh embodiments.
The specific implementation method nine: referring to fig. 1, the present embodiment will be described, in which a backing plate 4, a support plate 6, and a bottom plate 7 are fixedly connected by welding. So set up, connect simple and convenient. Other compositions and connection relations are the same as those of any one of the first to eighth embodiments.
The detailed implementation mode is ten: the present embodiment is described with reference to fig. 1, and the number of the plurality of supporting units of the present embodiment is 4 to 8. By means of the arrangement, the number of the supporting units is preferably 4, the supporting effect is guaranteed, and meanwhile the structure is simple and the cost is low. Other components and connection relationships are the same as those in any one of the first to ninth embodiments.
The invention is described in practical use with reference to fig. 1 to 2: the inlet connecting pipe 1, the upper conical head 2, the barrel 3, the lower conical head 5 and the outlet connecting pipe 8 are sequentially welded with one another, the upper part of the inlet connecting pipe 1 can be connected with a low-temperature heat storage tank, the low-temperature heat storage tank and the device are combined to form a double-tank heat storage system, and the outlet connecting pipe 8 can be connected with a pipeline.
The backing plate 4 is respectively welded with the cylinder 3 and the supporting plate 6, the supporting plate 6 is welded with the bottom plate 7, one backing plate 4, one supporting plate 6 and one bottom plate 7 form a supporting structure of the device, and the device needs four supporting systems.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A heat storage tank for 850 ℃ high-temperature sand is characterized in that: the device comprises an upper conical seal head (2), a lower conical seal head (5), a cylinder body (3) and a supporting assembly, wherein the upper conical seal head (2), the cylinder body (3) and the lower conical seal head (5) are fixedly connected from top to bottom in sequence, and the supporting assembly is arranged at the lower part of the cylinder body (3); the upper conical seal head (2), the cylinder body (3) and the lower conical seal head (5) comprise outer steel (10), a heat preservation layer (11) and an inner layer (12), the outer steel (10), the heat preservation layer (11) and the inner layer (12) are sequentially connected from outside to inside, and the inner layer (12) is made of plastic or bauxite.
2. The heat storage tank for high-temperature sand at 850 ℃ according to claim 1, characterized in that: the small end of the upper conical seal head (2) faces upwards, the large end of the upper conical seal head (2) faces downwards, and the large end of the upper conical seal head (2) is connected with the upper end of the cylinder body (3).
3. The heat storage tank for the high-temperature sand of 850 ℃ according to claim 2, characterized in that: the big end of the lower conical seal head (5) faces upwards, the big end of the lower conical seal head (5) is connected with the lower end of the cylinder body (3), and the small end of the lower conical seal head (5) faces downwards.
4. A thermal storage tank for high temperature sand at 850 ℃ according to claim 3, wherein: the device also comprises an inlet connecting pipe (1) and an outlet connecting pipe (8), wherein the inlet connecting pipe (1) is arranged at the small end of the upper conical seal head (2), and the outlet connecting pipe (8) is arranged at the small end of the lower conical seal head (5).
5. The heat storage tank for the sand with the high temperature of 850 ℃ as claimed in claim 4, wherein: the heat-insulating layer is characterized by further comprising a plurality of hook nails (9), wherein the outer layer steel (10), the heat-insulating layer (11) and the inner layer (12) are connected through the plurality of hook nails (9).
6. The heat storage tank for the sand with the high temperature of 850 ℃ as claimed in claim 5, wherein: the supporting component comprises a plurality of supporting units which are uniformly arranged at the lower part of the cylinder body (3).
7. The heat storage tank for the sand with the temperature of 850 ℃ as claimed in claim 6, wherein: every support unit all includes backing plate (4), backup pad (6) and bottom plate (7), and backup pad (6) vertical setting, and the sub-unit connection of backing plate (4) and barrel (3) is passed through to the upper end of backup pad (6), and the lower extreme of backup pad (6) passes through bottom plate (7) and is connected with the ground.
8. The heat storage tank for high temperature sand of 850 ℃ according to claim 7, wherein: the bottom plate (7) is connected with the foundation through a plurality of foundation bolts.
9. The heat storage tank for high temperature sand of 850 ℃ according to claim 8, wherein: the backing plate (4), the supporting plate (6) and the bottom plate (7) are fixedly connected into a whole in a welding mode.
10. The heat storage tank for high temperature sand of 850 ℃ according to claim 9, wherein: the number of the plurality of supporting units is 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301542.8A CN111397417A (en) | 2020-04-16 | 2020-04-16 | Heat storage tank for 850 ℃ high-temperature sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301542.8A CN111397417A (en) | 2020-04-16 | 2020-04-16 | Heat storage tank for 850 ℃ high-temperature sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111397417A true CN111397417A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010301542.8A Pending CN111397417A (en) | 2020-04-16 | 2020-04-16 | Heat storage tank for 850 ℃ high-temperature sand |
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| Country | Link |
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| CN (1) | CN111397417A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388999A (en) * | 2013-06-25 | 2013-11-13 | 中国科学院工程热物理研究所 | Spray packed bed heat storage device |
| CN103392068A (en) * | 2011-01-30 | 2013-11-13 | 陈裕启 | Solar heat storage and high temperature gas generating system with working medium being flowing sand |
| CN105241087A (en) * | 2015-09-18 | 2016-01-13 | 中国科学院电工研究所 | Split type single-tank solid accumulation bed heat storage system |
| CN107380780A (en) * | 2017-08-31 | 2017-11-24 | 中国成达工程有限公司 | A kind of double-jacket salt storage tank |
| US20190277575A1 (en) * | 2018-03-07 | 2019-09-12 | XI'AN JIAOTONG UNIVERSITY, School of Energy and Power Engineering | Two-layer variable-diameter packed bed heat storage apparatus and heat storage ball preparation method |
| CN212058437U (en) * | 2020-04-16 | 2020-12-01 | 哈尔滨汽轮机厂辅机工程有限公司 | Heat storage tank for 850 ℃ high-temperature sand |
-
2020
- 2020-04-16 CN CN202010301542.8A patent/CN111397417A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392068A (en) * | 2011-01-30 | 2013-11-13 | 陈裕启 | Solar heat storage and high temperature gas generating system with working medium being flowing sand |
| CN103388999A (en) * | 2013-06-25 | 2013-11-13 | 中国科学院工程热物理研究所 | Spray packed bed heat storage device |
| CN105241087A (en) * | 2015-09-18 | 2016-01-13 | 中国科学院电工研究所 | Split type single-tank solid accumulation bed heat storage system |
| CN107380780A (en) * | 2017-08-31 | 2017-11-24 | 中国成达工程有限公司 | A kind of double-jacket salt storage tank |
| US20190277575A1 (en) * | 2018-03-07 | 2019-09-12 | XI'AN JIAOTONG UNIVERSITY, School of Energy and Power Engineering | Two-layer variable-diameter packed bed heat storage apparatus and heat storage ball preparation method |
| CN212058437U (en) * | 2020-04-16 | 2020-12-01 | 哈尔滨汽轮机厂辅机工程有限公司 | Heat storage tank for 850 ℃ high-temperature sand |
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