CN106855323A - A kind of solar molten salt vaporising device of double tubesheet structure - Google Patents
A kind of solar molten salt vaporising device of double tubesheet structure Download PDFInfo
- Publication number
- CN106855323A CN106855323A CN201710178175.5A CN201710178175A CN106855323A CN 106855323 A CN106855323 A CN 106855323A CN 201710178175 A CN201710178175 A CN 201710178175A CN 106855323 A CN106855323 A CN 106855323A
- Authority
- CN
- China
- Prior art keywords
- fused salt
- evaporator
- tube sheet
- tube
- double tubesheet
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- 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
-
- 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
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
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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
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a kind of solar molten salt vaporising device of double tubesheet structure, the fused salt evaporator of the double tubesheet structure of the device has two tube sheets being separated from each other, the entrance point and the port of export of heat exchanger tube are respectively arranged on two tube sheets, the import and export end of pipe is closely coupled together with tube sheet by way of welding or expanded joint respectively；The profile of fused salt evaporator can be the structure of the type such as U-shaped, semi-circular or near-ring shape.Import and outlet completely separable, uniformity of temperature profile each tube sheet on of the evaporator of this double tubesheet structure of the present invention fused salt, thereby eliminate the root of thermal (temperature difference) stress generation, improve reliability and the life-span of fused salt evaporator.
Description
Technical field
The invention belongs to the technical field of solar energy high temperature heat utilization, and in particular to a kind of solar energy of double tubesheet structure melts
Salt vaporising device.
Background technology
The hot generation technology of solar energy high temperature is the important directions that solar energy scale is utilized, and fossil energy is solved to the mankind
The problems such as crisis, air pollution, has far-reaching significance.Wherein tower condensing thermal power generation technology has Large Copacity, high parameter etc. excellent
Point, especially with the tower smooth thermo-power station of heat accumulation, due to being exported with longer generating duration and more stable electric energy, therefore
Have broad application prospects.It is built or almost spread over each continent in the tower smooth thermo-power station project built, the technology path exhibition
Powerful market and vitality is shown.The tower type thermal generation cause of China is accumulated by the research and technology of early stage, is also located at present
In demonstrationization operation stage.09 month 2016, (capacity was for the demonstration electricity price of China's solar energy thermal-power-generating and demonstrative project issue
1.35GW), it is anticipated that the solar energy thermal-power-generating cause of China will welcome a brand-new developing stage.
In tower type thermal generation technology path, at present using it is most be device of working medium and fused salt working medium technology.Device of working medium skill
Art has that working medium is cheap, safe, the low advantage of initial cost cost, but the technology also has operating pressure high, water and steam
The problems such as heat accumulation is difficult.And have that operating temperature is high, operating pressure is low, easy using the solar heat power generation system of fused salt working medium
The advantages of extensive heat accumulation, power output stabilization, power network receive degree high is realized, but salt melting system also has the spy of system complex
Point.Simultaneously with fused salt be heat absorption, heat-storage medium solar-thermal generating system also need to special steam generating system：Stored up using fused salt
The heat deposited produces the steam of high parameter.Existing evaporator generally uses tube shell type structure pattern, and (fused salt is walked tube side, is steamed
Hair process occurs in shell-side), but this structure is when being applied to solar molten salt vapo(u)rization system, is generally needed on evaporator fused salt tube sheet
The temperature difference very high is born, for typical tower solar-thermal generating system, this temperature difference reaches more than 150 DEG C sometimes,
Thus may result in the stress of evaporator pipe sheet, even crackle etc., and be easily caused the leakage of fused salt evaporator tube bank, so that
The normal operation of influence steam generating system and whole light thermo-power station.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of solar molten salt vaporising device of double tubesheet structure, should
The fused salt steam generator of device has two tube sheets being separated from each other, be respectively arranged on two tube sheets the entrance point of heat exchanger tube with
The port of export, the import and export end of pipe is closely coupled together with tube sheet by way of welding or expanded joint respectively.Solar molten salt steams
The profile for sending out device can be the structure of the type such as U-shaped, semi-circular or near-ring shape.The evaporator of this double tubesheet structure is fused salt
Import and export completely separable, the uniformity of temperature profile on each tube sheet, thereby eliminate thermal (temperature difference) stress generation root, carry
The reliability of fused salt evaporator high and life-span.
The present invention solve above-mentioned technical problem use technical scheme be：A kind of solar molten salt evaporation of double tubesheet structure
Device, includes fused salt evaporator, drum, carbonated drink tedge and the down-comer of double tubesheet structure, and the fused salt of double tubesheet structure steams
Hair device includes evaporator shell, fused salt import tube sheet, fused salt outlet tube sheet and heat-exchanging tube bundle, fused salt import tube sheet, fused salt outlet
Tube sheet, heat-exchanging tube bundle are all contained in evaporator shell body, and the two ends of heat exchanger tube export with fused salt import tube sheet, fused salt respectively
Tube sheet is closely connected by way of welding or expanded joint, and hot melt salt enters from the fused salt import tube sheet of the evaporator of double tubesheet structure
To heat-exchanging tube bundle, the water on fused salt release heat evaporator shell side becomes saturated vapor, then is flowed out from fused salt outlet tube sheet
The fused salt evaporator of double tubesheet structure, wherein the saturated vapor for producing carries saturation water enters into drum from carbonated drink tedge
It is interior, steam-water separation process is completed in drum, steam output is sent to next stage heat exchanger, and the water in drum is entered by down-comer
To the evaporator of double tubesheet structure.
Wherein, the profile of the fused salt evaporator of double tubesheet structure can be U-shaped, semi-circular or loop configuration, two-tube hardened
The fused salt evaporator of structure is completely separable with outlet the import of fused salt.
Principle of the invention is：Conventional steam generator generally uses single tube plate structure, this steaming at present
The import of device, outlet fused salt tube end is sent out to be distributed on same tube sheet.It is the sun of 50MW, 100MW corresponding to generating capacity
Energy fused salt heat generating system, the fused salt of evaporator imports and exports the temperature difference would generally reach more than 100 DEG C under design conditions, low negative
The temperature difference may be more than 150 DEG C under the conditions of lotus.The big temperature difference on same tube sheet can produce internal stress very high, thus may lead
The crackle of induced evaporation device tube sheet and the mouth of pipe etc., so as to have influence on the reliability of steam generating system.The invention provides one kind
The solar molten salt vaporising device of double tubesheet structure, the operation principle of the solar molten salt vaporising device of this double tubesheet structure is such as
Shown in Fig. 1, the import that evaporator is restrained is arranged on independent tube sheet with outlet, is connected by heat-exchanging tube bundle between tube sheet
Connect, tube sheet is linked together with tube end by welding or expanding joint process.According to the characteristics of solar molten salt evaporator, steam
The profile for sending out device is usually designed to large U type, and this double tubesheet structure can make the uniformity of temperature profile on same tube sheet, eliminate
The root that thermal (temperature difference) stress is produced, improves reliability and the life-span of fused salt evaporator.Hot melt salt enters evaporation from warm tube plate end high
Device is restrained, and brings out to come from low temperature tube sheet, and the water for transferring heat to outside is restrained by heat-transfer surface, full under generation corresponding pressure
And steam, steam water interface entered into the drum on top by tedge, steam is completed in drum and is separated.
The present invention has following remarkable advantage relative to traditional vaporising device：
(1) the double tubesheet design of solar molten salt evaporator of the present invention, makes the Temperature Distribution on tube sheet become uniform, thus
The thermal (temperature difference) stress of single tube plate structure is eliminated, reliability and the life-span of evaporator is improve；
(2) fused salt evaporator profile of the present invention employs the design (or semi-circular, near-ring shape etc.) of large U type, thus
Differential expansion (cold conditions to hot temperature rise close to 450 DEG C) of the evaporator in cold conditions to hot generation can be effectively absorbed, is reduced
Swelling stress；
(3) method for designing of fused salt evaporator large U type of the present invention can increase the elbow radius of heat-transfer surface tube bank, reduce and pass
System evaporator end is washed away, and reduces the wall thickness reduction amount during bend pipe, improves the reliability of evaporator.
Brief description of the drawings
Fig. 1 is a kind of principle schematic of the solar molten salt vaporising device of double tubesheet structure of the invention.
Fig. 2 is the structural representation of the evaporator 1 of double tubesheet structure.
Reference implication is：1 is the evaporator of double tubesheet structure, and 2 is drum, and 3 is carbonated drink tedge, and 4 is down-comer,
11 is evaporator shell, and 12 is fused salt import tube sheet, and 13 is that fused salt exports tube sheet, and 14 is heat-exchanging tube bundle.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment further illustrates the present invention.
As shown in figure 1, a kind of solar molten salt vaporising device of double tubesheet structure of the invention, including double tubesheet structure steaming
Hair device 1, drum 2, carbonated drink tedge 3 and down-comer 4.Wherein, as shown in Fig. 2 the evaporator 1 of double tubesheet structure includes evaporator
Housing 11, fused salt import tube sheet 12, fused salt outlet tube sheet 13 and heat-exchanging tube bundle 14.Fused salt import tube sheet 12, fused salt exports tube sheet
13rd, heat-exchanging tube bundle 14 is all contained in evaporator shell 11, the two ends of heat exchanger tube 14 respectively with fused salt import tube sheet 12, molten
Salt is exported tube sheet 13 and is closely connected by way of welding or expanded joint.For complete set vaporising device also include fused salt and
Water/water vapour imports and exports adapter, water separator, the safety valve for preventing superpressure, the manhole door etc. for maintenance, due to upper
State part not high with general principle relevance of the invention, be not elaborated herein.
When the present apparatus works in the normal mode, fused salt import tube sheet 12 of the salt from the evaporator 1 of double tubesheet structure is heated
Heat-exchanging tube bundle 14 is entered into, the water of the side of fused salt release heat evaporator shell 11 becomes saturated vapor, then is exported from fused salt
Tube sheet 13 flows out the evaporator 1 of double tubesheet structure.The saturated vapor produced in said process carries saturation water from carbonated drink
Riser 3 is entered into drum 2.Steam-water separation process is completed in drum 2, steam output is sent to next stage heat exchanger, in drum
Water the evaporator 1 of double tubesheet structure is entered into by down-comer 4.
A kind of solar molten salt vaporising device of double tubesheet structure of the present invention, fundamentally changes the knot of conventional evaporator
Single tube plate structure, is become independent double tubesheet structure, and make the profile of New Evaporator in large U type, semi-circular or near by configuration formula
Loop configuration.Evaporator with fused salt as heat carrier, can eliminate the big temperature difference distribution on tube sheet, make the temperature on same tube sheet
It is evenly distributed, has been inherently eliminated the root of thermal (temperature difference) stress generation, improve reliability and the life-span of evaporator, there is wide
Application prospect.
Claims (2)
1. a kind of solar molten salt vaporising device of double tubesheet structure, it is characterised in that：The fused salt for including double tubesheet structure steams
Hair device (1), drum (2), carbonated drink tedge (3) and down-comer (4), the fused salt evaporator (1) of double tubesheet structure is including evaporator
Housing (11), fused salt import tube sheet (12), fused salt export tube sheet (13) and heat-exchanging tube bundle (14), fused salt import tube sheet (12), melt
Salt exports tube sheet (13), heat-exchanging tube bundle (14) and is all contained in evaporator shell (11), the two ends difference of heat exchanger tube (14)
Export tube sheet (13) and be closely connected by way of welding or expanded joint with fused salt import tube sheet (12), fused salt, hot melt salt is from two-tube
Fused salt import tube sheet (12) of the evaporator (1) of hardened structure enters into heat-exchanging tube bundle (14), fused salt release heat evaporator
The water of housing (11) side becomes saturated vapor, then exports the fused salt evaporator (1) that tube sheet (13) flows out double tubesheet structure from fused salt,
The saturated vapor for wherein producing carries saturation water and is entered into drum (2) from carbonated drink tedge (3), complete in drum (2)
Into steam-water separation process, steam output is sent to next stage heat exchanger, and the water in drum (2) is entered into two-tube by down-comer (4)
The evaporator (1) of hardened structure.
2. the solar molten salt vaporising device of a kind of double tubesheet structure according to claim 1, it is characterised in that：Double tubesheet
The profile of the fused salt evaporator (1) of structure can be U-shaped, semi-circular or loop configuration, the fused salt evaporator (1) of double tubesheet structure
The import of fused salt is completely separable with outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178175.5A CN106855323A (en) | 2017-03-23 | 2017-03-23 | A kind of solar molten salt vaporising device of double tubesheet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178175.5A CN106855323A (en) | 2017-03-23 | 2017-03-23 | A kind of solar molten salt vaporising device of double tubesheet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106855323A true CN106855323A (en) | 2017-06-16 |
Family
ID=59125229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710178175.5A Pending CN106855323A (en) | 2017-03-23 | 2017-03-23 | A kind of solar molten salt vaporising device of double tubesheet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106855323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160027A (en) * | 2019-06-06 | 2019-08-23 | 杭州锅炉集团股份有限公司 | A kind of in-tube evaporation fused salt or conduction oil steam generating system and method without outer power drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699163A (en) * | 2009-10-28 | 2010-04-28 | 华南理工大学 | Molten salt tube-shell type steam generating device and method |
| CN104279539A (en) * | 2013-07-09 | 2015-01-14 | 刘英聚 | Steam generating method and device |
| CN204534505U (en) * | 2015-03-31 | 2015-08-05 | 四川川润动力设备有限公司 | Solar energy thermo-power station molten salt heater device |
| CN105823350A (en) * | 2016-03-25 | 2016-08-03 | 青海中控太阳能发电有限公司 | Heat exchanger |
| CN207299585U (en) * | 2017-03-23 | 2018-05-01 | 杭州锅炉集团股份有限公司 | A kind of solar molten salt vaporising device of two-tube harden structure |
-
2017
- 2017-03-23 CN CN201710178175.5A patent/CN106855323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699163A (en) * | 2009-10-28 | 2010-04-28 | 华南理工大学 | Molten salt tube-shell type steam generating device and method |
| CN104279539A (en) * | 2013-07-09 | 2015-01-14 | 刘英聚 | Steam generating method and device |
| CN204534505U (en) * | 2015-03-31 | 2015-08-05 | 四川川润动力设备有限公司 | Solar energy thermo-power station molten salt heater device |
| CN105823350A (en) * | 2016-03-25 | 2016-08-03 | 青海中控太阳能发电有限公司 | Heat exchanger |
| CN207299585U (en) * | 2017-03-23 | 2018-05-01 | 杭州锅炉集团股份有限公司 | A kind of solar molten salt vaporising device of two-tube harden structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160027A (en) * | 2019-06-06 | 2019-08-23 | 杭州锅炉集团股份有限公司 | A kind of in-tube evaporation fused salt or conduction oil steam generating system and method without outer power drive |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |