CN109973975A - Single tank fuse salt heat accumulating type electric heating steam boiler - Google Patents
Single tank fuse salt heat accumulating type electric heating steam boiler Download PDFInfo
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- CN109973975A CN109973975A CN201910342641.8A CN201910342641A CN109973975A CN 109973975 A CN109973975 A CN 109973975A CN 201910342641 A CN201910342641 A CN 201910342641A CN 109973975 A CN109973975 A CN 109973975A
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- accumulation
- steam
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- 150000003839 salts Chemical class 0.000 title claims abstract description 115
- 238000005485 electric heating Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000001172 regenerating effect Effects 0.000 claims abstract description 13
- 238000009825 accumulation Methods 0.000 claims description 61
- 238000012546 transfer Methods 0.000 claims description 35
- 125000004122 cyclic group Chemical group 0.000 claims description 29
- 239000013589 supplement Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 235000014171 carbonated beverage Nutrition 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 abstract description 5
- 238000005338 heat storage Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004857 zone melting Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
-
- 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
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- 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
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- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of single tank fuse salt heat accumulating type electric heating steam boilers, including single tank fuse salt regenerative apparatus and steam-water separator, steam (vapor) outlet on single tank fuse salt regenerative apparatus is connected to by the first connecting line with the steam inlet sealing on steam-water separator, feed-water inlet on single tank fuse salt regenerative apparatus is connected to by the second connecting line with the backwater outlet sealing on steam-water separator, is provided with feed pump on the second connecting line.Above structure list tank fuse salt heat accumulating type electric heating steam boiler energy high-efficiency thermal storage, manufacturing cost is low, operation expense is low.
Description
Technical field
The present invention relates to thermal storage and energy accumulation technical fields more particularly to a kind of single tank fuse salt regenerative electrochemical to heat steam copper
Furnace.
Background technique
Fuse salt is with liquid temperature range is wide, viscosity is low, good flowing properties, vapour pressure is small, wants to pipeline bearing capacity
Many advantages, such as low, relatively denser, specific heat capacity is high, heat storage capacity is strong, cost is relatively low is asked, has become a kind of generally acknowledged good
High temperature conduct heat heat storage medium, using fuse salt as conduct heat heat storage medium fuse salt energy storage technology be presently the most mainstream
One of high temperature heat storage technology.
The double tank heat-storage technologies of fuse salt are more mature at present, but double tank fuse salt heat accumulating type electric heating steam boilers occupy sky
Between it is big, the connecting line between two accumulation of heat tank bodies is more and complicated, and needs are separately provided fuse salt is made to travel to and fro between two accumulation of heats
The transfer tube of tank body；Furthermore the accumulation of heat tank body material and fuse salt usage amount used is big, high temperature maintains the factors such as requirement, causes double
Tank fuse salt heat accumulating type electric heating steam boiler manufacturing cost is expensive, operation expense is also very high.
Summary of the invention
The technical issues of solving needed for of the invention is: provide it is a kind of can high-efficiency thermal storage, manufacturing cost be low, operation expense
Low single tank fuse salt heat accumulating type electric heating steam boiler.
To solve the above problems, the technical solution adopted by the present invention is that: single tank fuse salt regenerative electrochemical, which heats, to be steamed
Boiler furnace includes: single tank fuse salt regenerative apparatus and steam-water separator, the structure of single tank fuse salt regenerative apparatus are as follows: packet
The accumulation of heat tank body with insulating layer is included, the fuse salt inlet being connected to accumulation of heat tank inner chamber is provided in accumulation of heat top of the tank,
Accumulation of heat tank base is provided with the fuse salt outlet being connected to accumulation of heat tank inner chamber, and tubular thermal baffle is hanging by supporting element
It is set in the middle part of accumulation of heat tank inner chamber, and tubular thermal baffle and accumulation of heat tank body are coaxially disposed, tubular thermal baffle inner cavity is constituted
Spacing constitutes cyclic annular heat transfer zone, tubular thermal baffle between side wall in high-temperature region, tubular thermal baffle lateral wall and heat-accumulator tank body
Gap constitutes the upper channel flowed for fuse salt, tubular thermal baffle bottom and accumulation of heat between at the top of top and accumulation of heat tank inner chamber
Gap constitutes the lower channel flowed for fuse salt between tank inner chamber bottom；In the accumulation of heat tank wall being located at cyclic annular heat transfer zone
On be from top to bottom disposed with steam (vapor) outlet and feed-water inlet, be provided in accumulation of heat tank inner chamber bottom and high-temperature region added
The electric heater unit of heat, is provided with spiral coil heat exchanger, the outlet end of spiral coil heat exchanger and steam in cyclic annular heat transfer zone
The input end of exit seal connection, spiral coil heat exchanger is connected to feed-water inlet sealing；Steam (vapor) outlet passes through the first connecting tube
Road is connected to the steam inlet sealing on steam-water separator, and feed-water inlet passes through returning on the second connecting line and steam-water separator
Water out sealing connection, is provided with feed pump on the second connecting line.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein the electric heater unit packet
Include: several cylindric electrically heated rods for being set to high-temperature region lower section, each electrically heated rod tail end sealing pass through accumulation of heat tank base pair
Stretching heat-accumulator tank is external after the through-hole answered, and each electrically heated rod, which is evenly spaced on, to be surrounded in high-temperature region.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein in accumulation of heat tank inner chamber bottom
Several casings, cannula tip closing are vertically fixedly installed, casing shoe opens wide, and cannula tip protrudes into high-temperature region, covers tube bottom
Hold stretching heat-accumulator tank after the corresponding through-hole of hermetically passing accumulation of heat tank base external, each electrically heated rod is spacious by casing shoe respectively
Opening is inserted into corresponding casing.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein each casing is evenly spaced on
It is surrounded in high-temperature region.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein wrapped up on accumulation of heat tank body
Insulating layer is insulating layer of the thermal coefficient less than 0.12W/(mK).
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein set in accumulation of heat tank inner chamber
The exhausted partition of the tubular set is tubular thermal baffle of the thermal coefficient no more than 0.025W/(mK).
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein the steam-water separator is
Baffle-type steam-water separator, structure are as follows: including tank body, the gear vapour with gas-liquid separating function is provided in tank inner chamber
Tank inner chamber is separated into upper inner cavity and lower inner cavity by plate, steam baffle, and top of the tank is provided with the saturation being connected to upper inner cavity and steams
Vapor outlet is provided with the backwater outlet being connected to lower inner cavity in tank base；On the tank wall being located at lower inner cavity respectively
Steam inlet and the water supplement port for lower inner cavity moisturizing are offered, steam pipe top is connected to steam inlet sealing, steam pipe tail end
It is immersed in the water of lower inner cavity.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein water supplement port by small pump with
Water source connection, the feed pump are plunger type metering pump.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein top of the tank is provided with survey
The pressure gauge of cavity pressure in measuring tank body, pressure gauge and plunger type metering pump are connected with control device, and control device is according to pressure
The flow for the data dynamic regulation plunger type metering pump that power table measurement obtains, to make tank inner chamber pressure remained constant value.
Further, single tank fuse salt heat accumulating type electric heating steam boiler above-mentioned, wherein be provided with and be used on tank body
Measure the liquidometer of lower inner cavity water level.
The beneficial effects of the present invention are: single tank fuse salt heat accumulating type electric heating steam boiler is compact-sized, occupied area is small,
Operational process is simple, and can realize high effective heat-storage purpose well.Compared with double tank fuse salt heat accumulating type electric heating steam boilers,
The usage amount for reducing accumulation of heat tank body material reduces the external connecting pipe number amount for connecting double tanks, also with high-temperature region
Density contrast caused by both fuse salt and the fuse salt of cyclic annular heat transfer zone high-low temperature difference, the fuse salt for making high-temperature region and cyclic annular heat exchange
The fuse salt in area forms free convection, because being stored compared to double tank fuse salts without the transfer tube for flowing fuse salt is additionally arranged
The manufacturing cost of hot type electric heating steam boiler reduces 35%, and operating cost and maintenance cost also reduce.
Detailed description of the invention
Fig. 1 is the internal structure schematic illustration of single tank fuse salt heat accumulating type electric heating steam boiler of the present invention.
Fig. 2 is the schematic cross-sectional view of single tank fuse salt regenerative apparatus in Fig. 1.
Fig. 3 is the structural schematic diagram in Fig. 1 after overlook direction removal accumulation of heat top of the tank.
Fig. 4 is the position view of casing and electrically heated rod.
Specific embodiment
With reference to the accompanying drawing and preferred embodiment further details of the technical solution described in the present invention.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, single tank fuse salt heat accumulating type electric heating steam boiler described in the present embodiment, including single tank
Fuse salt regenerative apparatus and steam-water separator, the structure of single tank fuse salt regenerative apparatus are as follows: including the storage with insulating layer
Hot tank body 1, the insulating layer wrapped up in the present embodiment on accumulation of heat tank body 1 are that thermal coefficient is less than 0.12W/(mK) heat preservation
Layer, thermal coefficient are very good less than the heat insulation effect of the insulating layer of 0.12W/(mK), can effectively prevent accumulation of heat tank body after accumulation of heat
The heat loss of high-temperature fusion salt in inner cavity 10.Be provided at the top of accumulation of heat tank body 1 be connected to accumulation of heat tank inner chamber 10 it is molten
Melt salt inlet 11, the fuse salt outlet 12 being connected to accumulation of heat tank inner chamber 10, fuse salt are provided in 1 bottom of accumulation of heat tank body
Entered in accumulation of heat tank body 1 by fuse salt inlet 11, fuse salt inlet 11 and fuse salt outlet 12 are in normal work
In normally off.Tubular thermal baffle 3 is provided in accumulation of heat tank inner chamber 10, the exhausted partition 3 of the tubular is thermally conductive system
Tubular thermal baffle of the number no more than 0.025W/(mK).Tubular thermal baffle 3 is vacantly set to heat-accumulator tank by supporting element 31
10 middle part of intracoelomic cavity, and tubular thermal baffle 3 and accumulation of heat tank body 1 are coaxially disposed.In 3 top of tubular thermal baffle and heat-accumulator tank body
Gap constitutes the upper channel 13 flowed for fuse salt, 3 bottom of tubular thermal baffle and accumulation of heat tank inner chamber 10 between 10 top of chamber
Gap constitutes the lower channel 14 that flow for fuse salt between bottom, and tubular thermal baffle inner cavity constitutes high-temperature region 4, tubular be insulated every
Spacing constitutes cyclic annular heat transfer zone 5 between 1 inner sidewall of 3 lateral wall of plate and accumulation of heat tank body, and the setting of tubular thermal baffle 3 stops high temperature
The fuse salt in area 4 is mixed with the fuse salt lateral flow of cyclic annular heat transfer zone 5.In 1 side of accumulation of heat tank body being located at cyclic annular heat transfer zone 5
It is from top to bottom disposed with steam (vapor) outlet 15 and feed-water inlet 16 on wall, cyclic annular heat transfer zone 5 is provided with spiral coil heat exchange
The outlet end of device 2, spiral coil heat exchanger 2 is connected to the sealing of steam (vapor) outlet 15, the input end of spiral coil heat exchanger 2 and water supply
The sealing connection of import 16.
10 bottom of accumulation of heat tank inner chamber is provided with the electric heater unit heated to high-temperature region 4, the electric heating
Device includes: several cylindric electrically heated rods 6 for being set to 4 lower section of high-temperature region, and each 6 tail end sealing of electrically heated rod passes through heat-accumulator tank
It is stretched out outside heat-accumulator tank body 1 after the corresponding through-hole in 1 bottom of body.Wherein, each electrically heated rod 6, which is evenly spaced on, is surrounded on high-temperature region 4
It is interior.
The steam-water separator is baffle-type steam-water separator, structure are as follows: including tank body 7, set in tank inner chamber
It is equipped with the steam baffle 8 with gas-liquid separating function, tank inner chamber is separated into upper inner cavity 71 and lower inner cavity 72 by steam baffle 8, in tank
It is provided with the saturated vapor outlet 73 being connected to upper inner cavity 71 at the top of body 7, is provided in 7 bottom of tank body and is connected to lower inner cavity 72
Backwater outlet 75.Steam inlet 76 and water supplement port 74 are offered respectively on the tank wall being located at lower inner cavity 72, it is instantly interior
Water level in chamber 72 passes through water supplement port 74 when being lower than setting value be 72 moisturizing of lower inner cavity.Steam pipe 10 is provided in lower inner cavity,
The top of steam pipe 10 is connected to the sealing of steam inlet 76, and the tail end of steam pipe 10 is immersed in the water of lower inner cavity 72.Carbonated drink point
The tail end of steam pipe 10 is immersed in always in the water of lower inner cavity 72 when working normally from device.
Steam (vapor) outlet 15 on accumulation of heat tank body 1 is close by the first connecting line 91 and the steam inlet 76 on steam-water separator
Envelope is connected to, and the feed-water inlet 16 on accumulation of heat tank body 1 is close by the second connecting line 92 and the backwater outlet 75 on steam-water separator
Envelope connection, is provided with feed pump 101 on the second connecting line 92, and the water in lower inner cavity 72 is pumped into spiral shell by feed pump 101
In capstan heat exchange of heat pipe 2.
The working principle of single tank fuse salt heat accumulating type electric heating steam boiler is as follows:
Stage regenerator:
Feed pump 101 does not work, without heat transfer medium in spiral coil heat exchanger 2 --- and water, steam-water separator does not work at this time, only
Single tank fuse salt regenerative apparatus carries out thermal storage and energy accumulation operation.
Electric energy is provided to each electrically heated rod 6 by external power supply, carries out each electrically heated rod 6 to the fuse salt of high-temperature region 4
Heating, the fuse salt temperature positioned at high-temperature region 4 are gradually increased, and the fuse salt density that temperature is gradually increased gradually becomes smaller, and at this time
Fuse salt temperature positioned at cyclic annular heat transfer zone 5 is lower than the fuse salt temperature of high-temperature region 4, and the low fuse salt density of temperature is big, high temperature
The density contrast of two zone-melting salt caused by high-low temperature difference existing for area 4 and cyclic annular heat transfer zone 5 two region makes to be located at high temperature
The fuse salt in area 4 and the fuse salt of cyclic annular heat transfer zone 5 form free convection: the fuse salt of cyclic annular heat transfer zone 5 passes through lower channel 14
To high-temperature region 4 flow, and be located at high-temperature region 4 fuse salt then flowed up by 4 bottom of high-temperature region, then by upper channel 13 to
Cyclic annular heat transfer zone 5 is flowed, and is then flowed downward at the top of cyclic annular heat transfer zone 5 again, to form free convection.
By the fuse salt of high-temperature region 4 and the fuse salt free convection of cyclic annular heat transfer zone 5 to make to be located in heat-accumulator tank body
Fuse salt in chamber 10 is evenly distributed, the uniformity of temperature profile in accumulation of heat tank inner chamber 10, this not only realizes high-efficiency energy-storage mesh
, also substantially increase the utilization rate and service life of fuse salt.
Exothermic phase:
Feed pump 101 work, make the heat transfer medium in lower inner cavity 72 --- water by backwater outlet 75, feed pump 101, water supply into
Mouth 16 enters in spiral coil heat exchanger 2, carries out indirect heat exchange, heat transfer medium --- water with the fuse salt of cyclic annular heat transfer zone 5
Become high temperature super heated steam after absorbing the heat in fuse salt and from steam (vapor) outlet 15, the first connecting line 91, steam inlet
76, steam pipe 10 enters in the water in lower inner cavity 72, carries out secondary heat exchange with the water in lower inner cavity 72 and forms saturated steam, satisfies
Rise with vapor and carry out gas-liquid separation through steam baffle 8, the saturated vapor separated through steam baffle 8 is exported by saturated vapor
To user, the liquid water separated through steam baffle 8 is then fallen in lower inner cavity 72 for 73 outputs, mixed with the water in lower inner cavity 72
It closes.The above process is a water cycle process.
The fuse salt of cyclic annular heat transfer zone 5 and heat transfer medium --- the temperature after water indirect heat exchange in spiral coil heat exchanger 2
It reduces, the fuse salt density that temperature reduces becomes larger, and is now placed in melting of the fuse salt temperature than high-temperature region 4 of cyclic annular heat transfer zone 5
Salt temperature is low, and the low fuse salt density of temperature is big, and high-low temperature difference existing for high-temperature region 4 and cyclic annular heat transfer zone 5 two region causes
Two zone-melting salt density contrast, make to form nature pair positioned at the fuse salt of high-temperature region 4 and the fuse salt of cyclic annular heat transfer zone 5
Stream: the fuse salt of cyclic annular heat transfer zone 5 is flowed by lower channel 14 to high-temperature region 4, and is located at the fuse salt of high-temperature region 4 then by high temperature
4 bottom of area flows up, and is then flowed by upper channel 13 to cyclic annular heat transfer zone 5, then downward from cyclic annular 5 top of heat transfer zone again
Flowing, to form free convection.
Trough-electricity cheap using night in actual use, will be in accumulation of heat tank inner chamber 10 by each electrically heated rod 6
Fuse salt be heated to set temperature, so that night cheap paddy electricity is converted to the high temperature heat of fuse salt and is stored.
It needs the peak period of electricity consumption again to release the high temperature heat stored on daytime to be used to heat, the shifting peak for being both able to achieve electric power is filled out
Paddy, and can solve the serious problem of municipal pollution, and there is good economy.
Embodiment two
As shown in Figure 2 and Figure 4, the present embodiment and implement one the difference is that: the present embodiment is arranged on each electrically heated rod 6
There is casing 61, the connection type of specific casing 61 and accumulation of heat tank body 1 is as follows: being vertically fixedly installed in 10 bottom of accumulation of heat tank inner chamber
There are several casings 61,61 top closure of casing, 61 open bottom end of casing, 61 top of casing protrudes into high-temperature region 4,61 bottom end of casing
It is stretched out outside heat-accumulator tank body 1 after the corresponding through-hole in 1 bottom of hermetically passing accumulation of heat tank body, each electrically heated rod 6 passes through 61 bottom of casing respectively
Open ports are held to be inserted into corresponding casing 61.Wherein, as shown in figure 3, each casing 61 is evenly spaced on is surrounded in high-temperature region 4.
The setting of casing 61 can not only prevent each electrically heated rod 6 from directly contacting with fuse salt and corrosion phenomenon occur, improve each electric heating
The service life of stick 6, moreover it is possible to facilitate the replacement of each electric heating tube 6, list tank fuse salt heat accumulating type electric heating steam boiler when replacement
Without shutting down, row's melting salt treatment is carried out without to accumulation of heat tank inner chamber 10, it only need to be by the electric heating tube 6 needed replacing from set
Extraction can be electrically heated the replacement of pipe 6 in pipe 61.Remaining structure and usage mode are the same as example 1, no longer superfluous
It states.
Embodiment three
As shown in Figure 1, the present embodiment with implement one the difference is that: water supplement port 74 is connected to by small pump 102 with water source,
The feed pump 101 uses plunger type metering pump.The pressure gauge 103 of measurement tank inner chamber pressure is provided at the top of tank body 7,
Pressure gauge 103 and plunger type metering pump are connected with control device, and control device measures obtained data according to pressure gauge 103
The flow of dynamic regulation plunger type metering pump, to make tank inner chamber pressure remained constant value.Specific dynamic regulation is according to tank
The flow of the rate of change frequency control plunger type metering pump of internal cavity pressure: when the rate of pressure rise in steam-water separator is more than to set
When definite value, the flow of plunger type metering pump reduces, when the rate of pressure rise in steam-water separator is lower than setting value, plunger type metering
The flow of pump increases.
The liquidometer 104 for measuring the water level in lower inner cavity 72 is provided in the present embodiment on tank body 7, works as lower inner cavity
It can be 72 moisturizing of lower inner cavity by small pump 102 when water level in 72 is lower than setting value.Remaining structure and usage mode and implementation
Example one is identical, repeats no more.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any other form, and
Any modification made by according to the technical essence of the invention or equivalent variations, still fall within the scope of protection of present invention.
The invention has the advantages that single tank fuse salt heat accumulating type electric heating steam boiler is compact-sized, occupied area is small, operation
Process is simple, and can realize high effective heat-storage purpose well.Compared with double tank fuse salt heat accumulating type electric heating steam boilers, reduce
The usage amount of accumulation of heat tank body material reduces the external connecting pipe number amount for connecting double tanks, also with the melting of high-temperature region 4
Density contrast caused by both salt and the fuse salt of cyclic annular heat transfer zone 5 high-low temperature difference, the fuse salt for making high-temperature region 4 and cyclic annular heat transfer zone
5 fuse salt forms free convection, because comparing double tank fuse salt accumulation of heats without the transfer tube for flowing fuse salt is additionally arranged
The manufacturing cost of formula electric heating steam boiler reduces 35%, and operating cost and maintenance cost also reduce.
Claims (10)
1. single tank fuse salt heat accumulating type electric heating steam boiler, it is characterised in that: including single tank fuse salt regenerative apparatus and carbonated drink
Separator, the structure of single tank fuse salt regenerative apparatus are as follows: including the accumulation of heat tank body with insulating layer, in accumulation of heat top of the tank
It is provided with the fuse salt inlet being connected to accumulation of heat tank inner chamber, is provided in accumulation of heat tank base and is connected to accumulation of heat tank inner chamber
Fuse salt outlet, tubular thermal baffle is vacantly set in the middle part of accumulation of heat tank inner chamber by supporting element, and tubular insulation every
Plate and accumulation of heat tank body are coaxially disposed, and tubular thermal baffle inner cavity constitutes high-temperature region, tubular thermal baffle lateral wall and accumulation of heat tank body
Spacing constitutes cyclic annular heat transfer zone between inner sidewall, and gap, which is constituted, between tubular thermal baffle top and accumulation of heat tank inner chamber top supplies
The upper channel of fuse salt flowing, gap is constituted between tubular thermal baffle bottom and accumulation of heat tank inner chamber bottom flows for fuse salt
Lower channel；From top to bottom be disposed on the accumulation of heat tank wall being located at cyclic annular heat transfer zone steam (vapor) outlet and water supply into
Mouthful, accumulation of heat tank inner chamber bottom is provided with the electric heater unit heated to high-temperature region, cyclic annular heat transfer zone is provided with spiral shell
The outlet end of capstan heat exchange of heat pipe, spiral coil heat exchanger is connected to steam (vapor) outlet sealing, the input end of spiral coil heat exchanger
It is connected to feed-water inlet sealing；Steam (vapor) outlet is connected to by the first connecting line with the steam inlet sealing on steam-water separator,
Feed-water inlet is connected to by the second connecting line with the backwater outlet sealing on steam-water separator, is arranged on the second connecting line
There is feed pump.
2. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 1, it is characterised in that: the electricity adds
Thermal includes: several cylindric electrically heated rods for being set to high-temperature region lower section, and each electrically heated rod tail end sealing passes through heat-accumulator tank
Stretching heat-accumulator tank is external after the corresponding through-hole in body bottom, and each electrically heated rod, which is evenly spaced on, to be surrounded in high-temperature region.
3. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 1, it is characterised in that: in accumulation of heat tank body
Intracavity bottom is vertically fixedly installed several casings, cannula tip closing, and casing shoe opens wide, and cannula tip protrudes into high-temperature region
Interior, stretching heat-accumulator tank is external after the corresponding through-hole of casing shoe hermetically passing accumulation of heat tank base, and each electrically heated rod passes through respectively
Casing shoe open ports are inserted into corresponding casing.
4. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 3, it is characterised in that: each casing is uniform
It is spaced apart and is surrounded in high-temperature region.
5. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 1,2 or 3, it is characterised in that: storing
The insulating layer wrapped up on hot tank body is insulating layer of the thermal coefficient less than 0.12W/(mK).
6. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 1,2 or 3, it is characterised in that: storing
The exhausted partition of the tubular being arranged in hot tank inner chamber is tubular thermal baffle of the thermal coefficient no more than 0.025W/(mK).
7. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 1, it is characterised in that: the carbonated drink
Separator is baffle-type steam-water separator, structure are as follows: including tank body, be provided in tank inner chamber with gas-liquid separating function
Steam baffle, tank inner chamber is separated into upper inner cavity and lower inner cavity by steam baffle, is provided in top of the tank and is connected to upper inner cavity
Saturated vapor outlet, the backwater outlet being connected to lower inner cavity is provided in tank base；In the tank wall being located at lower inner cavity
Upper to offer steam inlet and the water supplement port for lower inner cavity moisturizing respectively, steam pipe top is connected to steam inlet sealing, steam
Pipe tail end is immersed in the water of lower inner cavity.
8. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 7, it is characterised in that: water supplement port passes through
Small pump is connected to water source, and the feed pump is plunger type metering pump.
9. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 8, it is characterised in that: in top of the tank
It is provided with the pressure gauge of measurement tank inner chamber pressure, pressure gauge and plunger type metering pump are connected with control device, control dress
The flow of the data dynamic regulation plunger type metering pump obtained according to gauge measurement is set, so that tank inner chamber pressure be made to remain permanent
Definite value.
10. list tank fuse salt heat accumulating type electric heating steam boiler according to claim 7, it is characterised in that: on tank body
It is provided with the liquidometer for measuring lower inner cavity water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342641.8A CN109973975A (en) | 2019-04-26 | 2019-04-26 | Single tank fuse salt heat accumulating type electric heating steam boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113324234A (en) * | 2021-02-24 | 2021-08-31 | 常州大学 | High-temperature molten salt heat accumulating type steam electric cooker device and using method thereof |
| CN117685810A (en) * | 2024-02-02 | 2024-03-12 | 江苏履信新材料科技有限公司 | Temperature-regulating heat storage tank for molten salt |
| CN117906411A (en) * | 2024-03-20 | 2024-04-19 | 江苏履信新材料科技有限公司 | Molten salt heat exchanger with flow equalizing mechanism |
| CN117906411B (en) * | 2024-03-20 | 2024-06-04 | 江苏履信新材料科技有限公司 | Molten salt heat exchanger with flow equalizing mechanism |
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