CN109489271A - A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method - Google Patents
A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method Download PDFInfo
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- CN109489271A CN109489271A CN201811401715.2A CN201811401715A CN109489271A CN 109489271 A CN109489271 A CN 109489271A CN 201811401715 A CN201811401715 A CN 201811401715A CN 109489271 A CN109489271 A CN 109489271A
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- power
- temperature regulating
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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 present invention discloses a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method, including hot box, is formed with heat-insulation chamber in the hot box；Header, the header are set in the heat-insulation chamber；Connecting tube, the connecting tube pass through the one side of the hot box, and the connecting tube is connected to the header；Absorbing pipe, the absorbing pipe pass through the hot box another side opposite with the connecting tube, and the absorbing pipe is connected to by bridge piece with the header；Electric heater, the electric heater are set on the inner wall of the hot box.The present invention can reduce radiation loss when high-temperature heat-transfer medium in heat dump flows through header, it can effectively solve fused salt and condense frozen block in header, be not take up header inner space, do not change the original structure of header, electric heater is arranged on the inside of hot box, does not influence the free to slide of header.
Description
Technical field
The present invention relates to the technical field of photo-thermal power generation more particularly to a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and
Its operation method.
Background technique
Heat dump is one of the core equipment of tower type solar electricity generation system, its effect is the height for reflecting heliostat field
Heat flow density radiation energy is converted into the interior energy of heat transfer medium.Heat dump is typically mounted at up to a hundred meters of heat absorption top of tower, by several
Heat dump unit (tube panel) composition, each unit upper and lower ends respectively have a preheating device.In heat dump starting, due to heat absorption
Temperature is lower in device header and pipeline, and the heat transfer medium fused salt in heat dump can be solidified when temperature is lower than 140 DEG C.For
Fused salt blocking header and pipeline are prevented, needs to be preheated in advance.
Summary of the invention
Material and space waste for existing heating structure, heat loss is larger and fused salt solidifies frozen block in header
The existing above problem now provides one kind and is intended to effectively solve fused salt to condense frozen block in header, is not take up header inner space
Solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method.
Specific technical solution is as follows:
A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device, comprising: hot box is formed with heat-insulation chamber in the hot box；
Header, the header are set in the heat-insulation chamber；Connecting tube, the connecting tube pass through the one side of the hot box, the company
Adapter tube is connected to the header；Absorbing pipe, the absorbing pipe pass through the hot box another side opposite with the connecting tube,
The absorbing pipe is connected to by bridge piece with the header；Electric heater, the electric heater are set to the interior of the hot box
On wall.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein the hot box includes several thermal insulation boards, Ruo Gansuo
It states thermal insulation board to surround to form the heat-insulation chamber, be tightly connected between several thermal insulation boards.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein the heat-insulation chamber is closed structure.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein the heat-insulation chamber is the open hollow structure in two sides.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein the inner wall of the hot box is equipped with steel mesh, described
Electric heater is set on the steel mesh.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein a connecting tube thermal insulation board therethrough,
Gap connects between the connecting tube and the thermal insulation board.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein wherein the side of a thermal insulation board is equipped with through-hole,
The connecting tube passes through the through-hole and connect with the header.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein the connecting tube and the absorbing pipe are along vertical side
To setting.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein open in the horizontal direction the other side of the hot box
Equipped with round, the absorbing pipe passes through the round, and the absorbing pipe is movably arranged in the round.
Above-mentioned solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein several connecting bendings are equipped in the hot box
Pipe, one end of several bridge pieces connect with the header, the other end of several bridge pieces with the suction
Heat pipe connection.
A kind of operation method of solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein including described in above-mentioned any one
Solar energy thermal-power-generating heat-absorption device temperature regulating device, the operation method include a start-up course:
Step A1: it before heat dump starting, first opens the electric heater and the heat-insulation chamber is preheated；
Step A2: molten by what is connect with the heat dump after the heat-insulated cavity temperature reaches a preheating temperature
Salt pump injects high-temperature molten salt from the connecting tube；
Step A3: after the heat dump steady operation, the electric heater is closed.
A kind of operation method of solar energy thermal-power-generating heat-absorption device temperature regulating device, wherein including described in above-mentioned any one
Solar energy thermal-power-generating heat-absorption device temperature regulating device, the operation method include a stopping process:
Step B1: it before heat dump shutdown, first opens the electric heater and the heat-insulation chamber is preheated；
Step B2: after high-temperature molten salt emptying, the electric heater is closed.
The good effect that above-mentioned technical proposal has compared with prior art is:
The present invention is provided with heat-insulation chamber outside header, and electric heater is arranged in outside header, heat loss through radiation is passed through
Mode preheats header, connecting tube, bridge piece and absorbing pipe, preheats before heat dump starting to header and each pipeline, can
Radiation loss when high-temperature heat-transfer medium in heat dump flows through header is reduced, fused salt is can effectively solve and condenses frozen block in header,
It is not take up header inner space, does not change the original structure of header, electric heater is arranged on the inside of hot box, does not influence header
It is free to slide.
Detailed description of the invention
Fig. 1 is the overall structure signal of a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method
Figure；
Fig. 2 is the knot of the first embodiment of a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method
Structure schematic diagram；
Fig. 3 is the knot of the second embodiment of a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method
Structure schematic diagram；
Fig. 4 be a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method operation method in start
The flow chart of process；
Fig. 5 be a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method operation method in shut down
The flow chart of process；
In attached drawing: 1, hot box；2, heat-insulation chamber；3, header；4, connecting tube；5, absorbing pipe；6, bridge piece；7, electric heating
Device；8, thermal insulation board；9, through-hole；10, round；11, steel mesh；81, top panel；82, front panel；83, rear panel；84, lower panel；
85, side plate.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
First embodiment:
Fig. 1 is the overall structure signal of a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method
Figure, Fig. 2 are that the structure of the first embodiment of a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method is shown
It is intended to, such as Fig. 1 and as shown in Fig. 2, showing a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of preferred embodiment, comprising:
Hot box 1, header 3 and connecting tube 4 are formed with heat-insulation chamber 2 in hot box 1, and header 3 is set in heat-insulation chamber 2, and connecting tube 4 passes through
The one side of hot box 1, connecting tube 4 are connected to header 3.
Preferably, heat dump is in starting, stopping process, fused salt flow direction is different, and connecting tube 4 can connect for import
Pipe, can also be outlet connecting pipe.
Further, as a kind of preferred embodiment, solar energy thermal-power-generating heat-absorption device temperature regulating device further include: absorbing pipe 5,
Absorbing pipe 5 passes through the another side opposite with connecting tube 4 of hot box 1, and absorbing pipe 5 is connected to by bridge piece 6 with header 3.
Further, as a kind of preferred embodiment, solar energy thermal-power-generating heat-absorption device temperature regulating device further include: electric heater
7, electric heater 7 is set on the inner wall of hot box 1.
Further, as a kind of preferred embodiment, hot box 1 includes several thermal insulation boards 8, and several thermal insulation boards 8 surround shape
At heat-insulation chamber 2, it is tightly connected between several thermal insulation boards 8.
Further, as a kind of preferred embodiment, heat-insulation chamber 2 is closed hollow structure.Preferably, heat-insulation chamber 2 with
Heat dump unit is the separated setting of unit.
Further, as a kind of preferred embodiment, solar energy thermal-power-generating heat-absorption device temperature regulating device further include: hot box 1
Inner wall be equipped with steel mesh, electric heater 7 be set to steel mesh 11 on.Preferably, several electric heaters 7 are equipped in hot box 1, it is several
Electric heater 7 is evenly arranged on steel mesh 11, and the steel mesh 11 of setting is convenient for the heat dissipation of electric heater 7, and electric heater 7 is avoided to overheat
Damage.
Further, as a kind of preferred embodiment, the thermal insulation board 8, and preferably, connection therethrough of connecting tube 4
Gap connects between pipe 4 and the thermal insulation board 8.It is relatively moved preferably, having between connecting tube 4 and the thermal insulation board 8, connecting tube 4
Gap between thermal insulation board 8 can heat-preservation cotton beyond the Great Wall, in order to guarantee heat insulation effect.
Further, as a kind of preferred embodiment, wherein the side of a thermal insulation board 8 is equipped with through-hole 9, connecting tube 4 is passed through
Through-hole 9 is simultaneously connect with header 3.
Preferably, shown in Figure 1, thermal insulation board 8 include a horizontally disposed top panel 81, one be vertically arranged and with it is upper
The front panel 82, one that one end of panel 81 is connected be vertically arranged and be connected with the other end of top panel 81 rear panel 83,
One is obliquely installed and connects plate 84 and the both side plate 85 positioned at two sides below front panel 82 and rear panel 83.
Further, it is arranged along the vertical direction as a kind of preferred embodiment, connecting tube 4 and absorbing pipe 5, specifically may be used
To form the structure that connecting tube 4 is located at 5 top of absorbing pipe or absorbing pipe 5 is located at 4 top of connecting tube.
Further, as a kind of preferred embodiment, the other side of hot box 1 offers round 10 in the horizontal direction, inhales
Heat pipe 5 passes through round 10, and absorbing pipe 5 is movably arranged in round 10, and absorbing pipe 5 can be in the range of round 10 along the vertical direction
Or horizontal direction is freely movable, so that the displacement or deformation that avoid absorbing pipe 5 from being formed when expanding at high operating temperatures are arranged
The compressing of 10 hole wall of hole；Round 10 is distributed in the horizontal direction, refers to that the shape of round 10 is arranged in horizontal direction.
Further, as a kind of preferred embodiment, preferably, round 10 be opened in rear panel 83 and lower panel 84 it
Between.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention.
The present invention also has on the basis of the above is implemented as follows mode:
In further embodiment of the present invention, continuing with referring to shown in Fig. 1, Fig. 2, several connecting bendings are equipped in hot box 1
One end of pipe 6, several bridge pieces 6 is connect with header 3, and the other end of several bridge pieces 6 is connect with absorbing pipe 5.
In further embodiment of the present invention, wherein under several bridge pieces 6 can be formed along front panel 82 and lower panel 84
The curved structure in portion, in addition several bridge pieces 6 can form the structure of lower vertical along rear panel 83.
In further embodiment of the present invention, several bridge pieces 6 are evenly distributed in heat-insulation chamber 2, several connecting bendings
Pipe 6 and the junction of header 3 are also uniformly distributed.
In further embodiment of the present invention, preferably, connecting tube 4 is connected with pump for liquid salts (figure far from one end of hot box 1
In do not show).
In further embodiment of the present invention, connecting tube 4, bridge piece 6 are welded with header 3.
In further embodiment of the present invention, the two sides of several hot boxes 1 are connected with each other, to form the knot of strip
Structure, and the side for being located at two hot boxes 1 at both ends is sealed by side plate 85, keeps being integrally formed for several hot boxes 1 closed
Strip cavity.
Second embodiment:
Fig. 1 is a kind of overall structure diagram of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention, and Fig. 3 is the present invention
A kind of structural schematic diagram of the second embodiment of solar energy thermal-power-generating heat-absorption device temperature regulating device is shown as shown in figures 1 and 3
A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of preferred embodiment, the main structure and first embodiment base of second embodiment
This is identical, the difference is that: heat-insulation chamber 2 is the open hollow structure in two sides.Preferably, heat-insulation chamber 2 is with heat dump unit
For the setting of unit entirety connection.Preferably, front and rear sides as shown in figure 1 are the open sides of heat-insulation chamber 2.
Preferably, hot box 1 includes several thermal insulation boards 8, several thermal insulation boards 8 include a horizontally disposed top panel 81, one
It is vertically arranged and the front panel 82, one being connected with one end of top panel 81 is vertically arranged and is connected with the other end of top panel 81
The rear panel 83 and one connect is obliquely installed and connects plate 84 below front panel 82 and rear panel 83.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention.
The present invention also has on the basis of the above is implemented as follows mode:
In further embodiment of the present invention, continuing with referring to shown in Fig. 1, Fig. 3, the two sides of several hot boxes 1 are mutually interconnected
It connects, cricoid structure can also be formed, make several hot boxes 1 is integrally formed closed ring-shaped cavity.
Fig. 4 be a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method operation method in start
The flow chart of process, as shown in figure 4, illustrating the start-up course of operation method of the invention below:
Step A1: before heat dump starting, first opening electric heater 7 preheats heat-insulation chamber 2；
Step A2: after temperature reaches a preheating temperature in heat-insulation chamber 2, by the pump for liquid salts that is connect with heat dump from even
High-temperature molten salt is injected in adapter tube 4；
Step A3: after heat dump steady operation, electric heater 7 is closed.
Fig. 5 be a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device of the present invention and its operation method operation method in shut down
The flow chart of process, as shown in figure 5, illustrating the stopping process of operation method of the invention below:
Step B1: before heat dump shutdown, first opening electric heater 7 preheats heat-insulation chamber 2；
Step B2: after high-temperature molten salt emptying, electric heater 7 is closed.
The present invention is provided with heat-insulation chamber 2 outside header 3, and electric heater 7 is arranged in outside header 3, is dissipated by radiating
The mode of heat preheats header, connecting tube 4, bridge piece 6 and absorbing pipe 5, carries out before heat dump starting to header 3 and each pipeline
Preheating, can reduce radiation loss when high-temperature heat-transfer medium in heat dump flows through header 3, can effectively solve fused salt in header 3
Frozen block is condensed, 3 inner space of header is not take up, does not change the original structure of header 3, electric heater 7 is arranged in hot box 1
Side does not influence the free to slide of header 3；Heat-insulation chamber 2 is preheated before heat dump is shut down, convenient for the emptying of fused salt, is prevented
Fused salt condenses frozen block in header 3 after heat dump is shut down.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (12)
1. a kind of solar energy thermal-power-generating heat-absorption device temperature regulating device characterized by comprising
Hot box is formed with heat-insulation chamber in the hot box；
Header, the header are set in the heat-insulation chamber；
Connecting tube, the connecting tube pass through the one side of the hot box, and the connecting tube is connected to the header；
Absorbing pipe, the absorbing pipe pass through the hot box another side opposite with the connecting tube, and the absorbing pipe passes through
Bridge piece is connected to the header；
Electric heater, the electric heater are set on the inner wall of the hot box.
2. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 1, which is characterized in that if the hot box includes
Dry thermal insulation board, several thermal insulation boards surround to form the heat-insulation chamber, are tightly connected between several thermal insulation boards.
3. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the heat-insulation chamber is closed
Structure.
4. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the heat-insulation chamber is two sides
Open hollow structure.
5. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the inner wall of the hot box
It is equipped with steel mesh, the electric heater is set on the steel mesh.
6. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the connecting tube runs through it
In a thermal insulation board, between the connecting tube and the thermal insulation board gap connect.
7. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that a wherein thermal insulation board
Side be equipped with through-hole, the connecting tube is passed through and the through-hole and is connect with the header.
8. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the connecting tube and described
Absorbing pipe is arranged along the vertical direction.
9. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that the hot box it is another
Lateral edge horizontal direction offers round, and the absorbing pipe passes through the round, and the absorbing pipe is movably arranged in the round.
10. solar energy thermal-power-generating heat-absorption device temperature regulating device according to claim 2, which is characterized in that set in the hot box
There are several bridge pieces, one end of several bridge pieces is connect with the header, several bridge pieces
The other end is connect with the absorbing pipe.
11. a kind of operation method of solar energy thermal-power-generating heat-absorption device temperature regulating device, which is characterized in that including claims 1 to 10
Any one of described in solar energy thermal-power-generating heat-absorption device temperature regulating device, the operation method include a start-up course:
Step A1: it before heat dump starting, first opens the electric heater and the heat-insulation chamber is preheated；
Step A2: after the heat-insulated cavity temperature reaches a preheating temperature, pass through the pump for liquid salts connecting with the heat dump
High-temperature molten salt is injected from the connecting tube；
Step A3: after the heat dump steady operation, the electric heater is closed.
12. a kind of operation method of solar energy thermal-power-generating heat-absorption device temperature regulating device, which is characterized in that including claims 1 to 10
Any one of described in solar energy thermal-power-generating heat-absorption device temperature regulating device, the operation method further includes a stopping process:
Step B1: it before heat dump shutdown, first opens the electric heater and the heat-insulation chamber is preheated；
Step B2: after high-temperature molten salt emptying, the electric heater is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401715.2A CN109489271A (en) | 2018-11-22 | 2018-11-22 | A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401715.2A CN109489271A (en) | 2018-11-22 | 2018-11-22 | A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method |
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| Publication Number | Publication Date |
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| CN109489271A true CN109489271A (en) | 2019-03-19 |
Family
ID=65697690
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811401715.2A Pending CN109489271A (en) | 2018-11-22 | 2018-11-22 | A kind of solar energy thermal-power-generating heat-absorption device temperature regulating device and its operation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202267253U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Built-in heat absorber of lower header |
| CN104359234A (en) * | 2014-11-10 | 2015-02-18 | 东方电气集团东方锅炉股份有限公司 | Molten salt heat absorber system for secondary reflective tower type photo-thermal power station |
| CN205980401U (en) * | 2016-08-24 | 2017-02-22 | 东方电气集团东方锅炉股份有限公司 | A insulation can that is used for solar energy fused salt heat absorber collection case |
| CN207350970U (en) * | 2017-07-27 | 2018-05-11 | 东方电气集团东方锅炉股份有限公司 | A kind of fused salt heat dump tube panel preheating and anti-condensation protective device |
| CN108489122A (en) * | 2018-05-23 | 2018-09-04 | 东方电气集团东方锅炉股份有限公司 | A kind of tower type solar fused salt heat dump insulation construction |
-
2018
- 2018-11-22 CN CN201811401715.2A patent/CN109489271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202267253U (en) * | 2011-09-22 | 2012-06-06 | 长沙锅炉厂有限责任公司 | Built-in heat absorber of lower header |
| CN104359234A (en) * | 2014-11-10 | 2015-02-18 | 东方电气集团东方锅炉股份有限公司 | Molten salt heat absorber system for secondary reflective tower type photo-thermal power station |
| CN205980401U (en) * | 2016-08-24 | 2017-02-22 | 东方电气集团东方锅炉股份有限公司 | A insulation can that is used for solar energy fused salt heat absorber collection case |
| CN207350970U (en) * | 2017-07-27 | 2018-05-11 | 东方电气集团东方锅炉股份有限公司 | A kind of fused salt heat dump tube panel preheating and anti-condensation protective device |
| CN108489122A (en) * | 2018-05-23 | 2018-09-04 | 东方电气集团东方锅炉股份有限公司 | A kind of tower type solar fused salt heat dump insulation construction |
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Application publication date: 20190319 |
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