CN204043223U - Solar energy heating receiver - Google Patents
Solar energy heating receiver Download PDFInfo
- Publication number
- CN204043223U CN204043223U CN201420384721.2U CN201420384721U CN204043223U CN 204043223 U CN204043223 U CN 204043223U CN 201420384721 U CN201420384721 U CN 201420384721U CN 204043223 U CN204043223 U CN 204043223U
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- CN
- China
- Prior art keywords
- heating surface
- evaporator section
- section
- header
- superheat
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- 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.)
- Withdrawn - After Issue
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Classifications
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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
- Y02E10/44—Heat exchange systems
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a kind of solar energy heating receiver, adopt segmental structure, comprise hypomere evaporator section and epimere superheat section, evaporator section is connected by drum with superheat section, it is characterized in that: described evaporator section comprises evaporator section entrance header, evaporating heating surface, evaporator section heating surface fairlead, down-comer, the header that circulating pump and a heating surface are imported and exported, heat transferring medium enters into evaporator section entrance header by drum by down-comer and circulating pump, by header, evaporator section heating surface is sent in heat transferring medium uniform distribution, complete the exchange process of energy, drum is connected to by evaporator section heating surface fairlead, described evaporator section heated face structure is helical water-cooled wall pipe, profile is cylinder.It is simple and reliable for structure.
Description
Technical field
The present invention relates to a kind of solar energy heating receiver, particularly relating to a kind of tower type solar thermal-arrest water-steam receiver, is application of solar.
Background technology
Solar energy thermal-power-generating is a kind of generation technology being realized clean energy resource utilization by the conversion process of " light-Re-electricity ".Similar at the fossil-fuelled power plant of conversion with traditional in principle of heat, be only that the source of the energy is different.Solar energy thermal-power-generating is that the sunshine of clean low energy densities is converted into high density energy by heliostat, with the form of thermodynamic cycle by thermal energy for electric energy.Solar energy thermal-power-generating technology can be divided into according to the form of receiver: slot type, tower and butterfly.Wherein, the commercialization of trough type solar power generation technology, tower and butterfly is still in demonstration phase.Solar energy thermal-power-generating is subject to the impact of weather, has significantly intermittent and unstability, brings very large challenge to the design of solar energy system.
In solar heat power generation system, solar receiver is the critical component realizing solar energy thermal-power-generating, it by heliostat catch, reflect, the solar energy that focuses on is converted into can the high temperature energy of efficiency utilization, for generating set provides power source.The medium that solar receiver uses comprises fused salt and two kinds, water.
In different Space Angle, the solar energy otherness received by receiver is larger.Light field focuses on and is significantly less than downsun receiver heating surface towards the luminous energy density on the heating surface of sun side.On heating surface, Energy distribution is uneven, easily causes heat transfer intensity different, then produces the inequality of assignment of traffic.Time serious, there will be Temperature Deviation between heating surface local overtemperature of tube wall and pipe and strengthen, affect the safe operation of equipment.
Summary of the invention
The object of the invention is the large problem of Temperature Deviation between the local overtemperature of tube wall that produces for the luminous energy density skewness on solar energy heating receiver boundary condition and pipe, a kind of hypomere evaporator section is provided, epimere superheat section, the solar energy absorption plant of the segmental structure that centre is connected by drum.
In order to achieve the above object, technical scheme of the present invention is:
A kind of solar energy heating receiver, adopt segmental structure, comprise hypomere evaporator section and epimere superheat section, evaporator section is connected by drum with superheat section, it is characterized in that: described evaporator section comprises evaporator section entrance header, evaporating heating surface, evaporator section heating surface fairlead, down-comer, the header that circulating pump and a heating surface are imported and exported, heat transferring medium enters into evaporator section entrance header by drum by down-comer and circulating pump, by header, evaporator section heating surface is sent in heat transferring medium uniform distribution, complete the exchange process of energy, drum is connected to by evaporator section heating surface fairlead, described evaporator section heated face structure is helical water-cooled wall pipe, profile is cylinder.Described superheat section is positioned at the top of evaporator section, both arrange at coaxial equal diameter, described superheat section heating surface is divided into three groups of (A according to heat transfer process, B, C), often group comprises multiple heating surface, often organize heating surface and comprise superheat section entrance header, inlet header, superheat section heating surface, outlet header, superheat section outlet header, medium successively through above-mentioned parts, front two groups (A, B) diametrically symmetrical at heating surface, enter into the 3rd group of (C) heating surface after media for heat exchange and carry out exchange heat, after be mixed into next technical process by outlet header.
Suddenly reducing the acute variation of underload or the load caused for solving the luminous energy density occurred due to the reason such as weather, circulating pump being set at evaporator section, being connected with down-comer.When there is above-mentioned situation, use circulating pump adjustment to be entered the quantity of circulating water of evaporating heating surface circulation again by circulation line, i.e. circulating ratio, adapts to the change of load.When so just can solve load acute variation, the change because of Transfer Boundary Condition causes the problem of tube wall temperature acute variation.
Preferably, the heating surface of superheat section adopts straight tube, and form is light pipe, and tube pitch is less, and the thermal expansion value that the size in gap calculates according to maximum load sets;
Preferably, the profile of superheat section is circular or polygon, and described polygonal limit number is even number and is more than or equal to 6;
Preferably, before described superheat section, two groups of (A, B) heating surfaces close is parallel relationship, and often group (such as A group) is at least divided into four (A
1, A
2..., A
2n,n>1), A
2kand A
2k+1heating surface is parallel relationship, A
2kand A
2 (k+1)for series relationship, wherein 0<k<=n.3rd group of (C) heating surface at least comprise two panels heating surface (C1 ..., C
2n,n>1)), C
2kand C
2k+1heating surface is parallel relationship, C
2kand C
2 (k-1)for series relationship, wherein 0<k<=n.；
Preferably, the import and export of the every sheet heating surface of superheat section are equipped with header, arrange equalizing main between the header of parallel relationship heating surface;
Preferably, the circumferential direction that is arranged in of superheat section heating surface (A, B) is arranged symmetrically with, such as, and A
2kand A
2k+1and A
2kand A
2k+1symmetrical in circumferential direction;
Preferably, the helical water-cooled wall of bottom evaporator section chooses fin panel casing, and the pipeloop number of all pipelines of water-cooling wall is greater than 1 circle;
Preferably, the circulating ratio value of the circulating pump of evaporator section is between 1.2 ~ 4;
Preferably, the helical water-cooled wall of bottom evaporator section adopts riffled tube, and critical steam content corresponding under improving maximum load, prevents film boiling;
Preferably, the helical water-cooled wall of bottom evaporator section adopts the mode of hanging to install fixing;
Preferably, the heating surface surface of receiver scribbles the stronger coating of exchange capability of heat, with enhanced heat exchange;
Preferably, evaporator section and the coaxial equal diameter of superheat section are arranged, the heating surface compact siro spinning technology between two sections, and the distance of expanded by heating is only reserved in gap;
Preferably, the installation site of drum is in the middle of evaporator section and superheat section, and the center of drum is on the central axis of evaporator section;
Preferably, the heating surface that all headers are arranged in receiver is inner, and circumferentially direction is uniformly distributed;
Evaporator section of the present invention adopts the form that helical water-cooled wall is large, can effectively solve incident light energy in time with azimuthal variation and occur the problem that large Energy distribution is uneven, reduce the deviation of temperature and wall temperature between the water screen tube of high heat load area, stability and safety service ability answered by strengthening receiver.Critical steam content corresponding under the use raising maximum load of closed circuit and riffled tube, reduces the risk that film boiling occurs.Evaporator section and superheat section adopt hanging and the mode of fixed support to install fixing respectively, distinguish downwards, upwards free wxpansion when being heated, and this simple and reliable for structure, the displacement of equipment is little.
Accompanying drawing explanation
Fig. 1 is that solar receiver version arranges schematic diagram.
Fig. 2 is solar receiver version connection diagram.
Fig. 3 is solar receiver superheat section heating surface cross section schematic top plan view.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Following examples 1 a kind of solar energy heating receiver as shown in Figure 1, comprises evaporator section 1, superheat section 2 and drum 3.Evaporator section 1 adopts the female spiral coil of band, and spiral coil is fin panel casing.Evaporator section adopts the mode of hanging to install fixing, after being heated, and the downward free wxpansion of evaporator section.Superheat section 2 is arranged on the top of evaporator section 1, adopt the form of straight tube, light pipe, heating surface is divided into three groups of (A, B, C), often group comprises superheat section entrance header 4, inlet header 5, superheat section heating surface 6, superheat section fairlead 7, outlet header 15, superheat section outlet header 8, medium is successively through above-mentioned parts, front two groups of (A, B) diametrically symmetrical at heating surface, enters into the 3rd group of (C) heating surface and carries out exchange heat after media for heat exchange, after be mixed into next technical process by superheat section outlet header 8.Superheat section adopts the mode supported to install fixing, backward upper free wxpansion of being heated.
Wherein, composition graphs 2, heat transferring medium in evaporator section is entered by evaporator section entrance header 9, heat exchange is carried out by evaporating heating surface 10, enter into drum 3 by evaporator section heating surface fairlead 12 and evaporator section outlet header 11, in drum, complete the process that carbonated drink is separated, gaseous state heat transferring medium enters into superheat section, liquid heat transferring medium is connected to evaporator section entrance header 9 by down-comer 13, completes the cyclic process of heat transferring medium at evaporator section.The circulating ratio of adjustment circulating pump 14 is to adapt to the change of load.The heating surface of superheat section is divided into A, B, C tri-groups, and the heat transferring medium often in group passes through heating surface entrance header 4 successively, inlet header 5, superheat section heating surface 6, superheat section fairlead 7, outlet header 15, superheat section outlet header 8.A and B heating surface is parallel relationship, heating surface A1 and A2 in A group is in parallel, A3 and A4 is in parallel, A1A2 and A3A4 is series relationship, according to the quantity of the demand actual arrangement heating surface of thermic load, the heating surface of A group and B group is even number, to facilitate being arranged symmetrically with of heating surface, after header mixing, enter C group after A group and the heat exchange of B group, heating surface C1 and C2 in C group is in parallel, C3 and C4 is in parallel, C1C2 and C3C4 is series relationship.
Fig. 3 is the cross section schematic top plan view of receiver superheat section, signal heating surface A, B, C tri-heating surfaces distribution relation in the circumferential.The profile of evaporator section (1) and superheat section (2) heating surface is circle or polygon, and described polygonal limit number is even number, and is more than or equal to 6.A1 and B1 is symmetrical about heating surface cross-sectional diameter, and A2 and B2 is symmetrical, and A3 and B3 is symmetrical, and A4 and B4 is symmetrical, and C1 and C2 is symmetrical; Generally speaking, front two groups of heating surfaces (A, B) are along the symmetrical distribution of heating surface cross-sectional diameter.
Embodiment 1
| Title | Unit | Numerical value |
| Rated load | MW | 130 |
| Superheat steam flow | kg/s | 140 |
| Superheated steam pressure | atm | 150 |
| Superheat steam temperature | ℃ | 570 |
| Feed temperature | ℃ | 260 |
| Drum pressure | atm | 175 |
| Circulating ratio | ? | 2.0 |
| Evaporator section heating surface area | m2 | 673 |
| Overheated short heating surface area | m2 | 540 |
| Evaporator section height | m | 11 |
| Evaporator section diameter | m | 19.5 |
| Superheat section height | m | 9 |
| Superheat section A group | Sheet | 8 |
| Superheat section B group | Sheet | 8 |
| Superheat section C group | Sheet | 4 |
Claims (8)
1. a solar energy heating receiver, adopt segmental structure, comprise hypomere evaporator section (1) and epimere superheat section (2), evaporator section (1) is connected by drum (3) with superheat section (2), it is characterized in that: described evaporator section comprises evaporator section entrance header (9), evaporating heating surface (10), evaporator section heating surface fairlead (12), down-comer (13), circulating pump (14) and each heating surface enter, the header (5 of outlet, 15), heat transferring medium enters into evaporator section entrance header (9) by drum by down-comer (13) and circulating pump (14), by header (9), evaporator section heating surface (10) is sent in heat transferring medium uniform distribution, complete the exchange process of energy, drum (3) is connected to by evaporator section heating surface fairlead (12), described evaporator section heating surface (10) structure is helical water-cooled wall pipe, profile is cylinder, described superheat section (2) is positioned at the top of evaporator section (1), both arrange at coaxial equal diameter, described superheat section heating surface (2) is divided into three groups of heating surface (A according to heat transfer process, B, C), often group comprises multiple heating surface, often organize heating surface and comprise superheat section entrance header (4), inlet header (5), superheat section heating surface (6), outlet header (15), superheat section outlet header (8), medium is successively through above-mentioned parts, front two groups of heating surface (A, B) along the symmetrical distribution of heating surface cross-sectional diameter, enter into the 3rd group of heating surface (C) after media for heat exchange and carry out exchange heat, after be mixed into next technical process by superheat section outlet header (8).
2. a kind of solar energy heating receiver as claimed in claim 1, is characterized in that: the circulating ratio of the circulating pump (14) that evaporator section (1) is arranged is between 1.2 ~ 4.
3. a kind of solar energy heating receiver as claimed in claim 1, it is characterized in that: the helical water-cooled wall of bottom evaporator section (1) chooses fin panel casing, the pipeloop number of all pipelines of water-cooling wall is greater than 1 circle.
4. a kind of solar energy heating receiver as claimed in claim 1, it is characterized in that: the helical water-cooled wall of bottom evaporator section (1) chooses light pipe, the pipeloop number of all pipelines of water-cooling wall is greater than 1 circle.
5. a kind of solar energy heating receiver as claimed in claim 1, is characterized in that: the helical water-cooled wall of bottom evaporator section (1) adopts riffled tube, critical steam content corresponding under improving maximum load; Top superheat section (2) adopts the mode of hanging to install fixing, downward free wxpansion, and top superheat section adopts the method for fixed support, upwards free wxpansion.
6. a kind of solar energy heating receiver as claimed in claim 1, is characterized in that: the profile of evaporator section (1) and superheat section (2) heating surface is circle or polygon, described polygonal limit number is even number, and is more than or equal to 6; The coaxial equal diameter of heating surface of evaporator section (1) and superheat section (2) is arranged, heating surface (6, the 10) compact siro spinning technology between two sections, and the distance of expanded by heating is only reserved in gap.
7. a kind of solar energy heating receiver as claimed in claim 1, is characterized in that: all headers (4,8,9,11) and the connecting line of header (5,15) and heating surface (6,10) are arranged in the space that heating surface surrounds.
8. a kind of solar energy heating receiver as claimed in claim 1, is characterized in that: the import and export of the every sheet heating surface of superheat section are equipped with header, arrange equalizing main between the header of parallel relationship heating surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384721.2U CN204043223U (en) | 2014-07-11 | 2014-07-11 | Solar energy heating receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384721.2U CN204043223U (en) | 2014-07-11 | 2014-07-11 | Solar energy heating receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043223U true CN204043223U (en) | 2014-12-24 |
Family
ID=52243879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420384721.2U Withdrawn - After Issue CN204043223U (en) | 2014-07-11 | 2014-07-11 | Solar energy heating receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043223U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101112A (en) * | 2014-07-11 | 2014-10-15 | 上海锅炉厂有限公司 | Solar heat collection receiver |
| CN106556156A (en) * | 2015-09-25 | 2017-04-05 | 北京兆阳光热技术有限公司 | Light heat-receiving apparatus and tower type solar in a kind of tower power station utilize device |
-
2014
- 2014-07-11 CN CN201420384721.2U patent/CN204043223U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101112A (en) * | 2014-07-11 | 2014-10-15 | 上海锅炉厂有限公司 | Solar heat collection receiver |
| CN104101112B (en) * | 2014-07-11 | 2015-11-18 | 上海锅炉厂有限公司 | A kind of solar energy heating receiver |
| CN106556156A (en) * | 2015-09-25 | 2017-04-05 | 北京兆阳光热技术有限公司 | Light heat-receiving apparatus and tower type solar in a kind of tower power station utilize device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ge Xueli Inventor after: Wu Xiaojiang Inventor after: Zhang Jianwen Inventor after: Yan Kai Inventor after: Li Yuehua Inventor after: Zhang Xiang Inventor before: Ge Xueli |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GE XUELI TO: GE XUELI WU XIAOJIANG ZHANG JIANWEN YAN KAI LI YUEHUA ZHANG XIANG |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |