CN207455912U - Water-coal-slurry organic heat carrier radiation heating-surface structure - Google Patents
Water-coal-slurry organic heat carrier radiation heating-surface structure Download PDFInfo
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- CN207455912U CN207455912U CN201720850804.XU CN201720850804U CN207455912U CN 207455912 U CN207455912 U CN 207455912U CN 201720850804 U CN201720850804 U CN 201720850804U CN 207455912 U CN207455912 U CN 207455912U
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Abstract
A kind of water-coal-slurry organic heat carrier radiation heating-surface structure, upper coil pipe including being mounted on upper furnace, lower coil pipe and intermediate header, the upper coil pipe includes upper left coil pipe and upper right coil pipe, the upper left coil pipe is symmetrically arranged with upper right coil pipe, the lower coil pipe includes lower-left coil pipe and bottom right coil pipe, the lower-left coil pipe is symmetrically arranged with bottom right coil pipe, the intermediate header includes left intermediate header and right intermediate header, the lower-left coil pipe is connected by left intermediate header with the upper left coil pipe, the bottom right coil pipe is connected by right intermediate header with the upper right coil pipe;Acoustic wave ash ejector is respectively equipped at the top of the upper furnace above the middle part of upper left coil pipe and above the middle part of upper right coil pipe, the acoustic wave ash ejector is mounted on by acoustic wave ash ejector casing at the top of upper furnace.The utility model provides a kind of can remove automatically and is attached to coil pipe coal slurry flying dust, and the water-coal-slurry organic heat carrier radiation heating-surface structure being adapted with the boiler of organic heat carrier of combusting coal water slurry.
Description
Technical field
The utility model belongs to water-coal-slurry boiler of organic heat carrier field, more particularly, to a kind of water-coal-slurry organic heat carrier
Radiation heating-surface structure.
Background technology
Coal slurry is in stove chamber inner combustion, and the high-temperature flue gas of generation is substantially vertical in burner hearth to be flowed up, and the directly side of washing away
Shape radiant coil wall.It is higher in the heat medium temperature of square-shaped radiation disk Bottomhole pressure because water-coal-slurry dust burdening is higher (10% or so),
Coal slurry flying dust is in high-temperature burner hearth, stickiness increase, it is easy to be attached to coil pipe wall, and high-temperature flue gas flow direction and coal slurry flying dust
Fall grey direction substantially with horizontal vertical upper and lower to, coil pipe stringing trend substantially in being horizontally orientated to, both front and rear basic submission
Fork is vertical, and coal slurry flying dust easily adheres to and is flocked on the junction in gap between two pipe of coil pipe;It is chronically exposed to high-temperature flue gas
Under the easy high-temperature oxydation of radiant coil;High-temperature flue gas transversal flow coil pipe, coil pipe easy to wear.Radiation disk can be all caused above
Pipe heat transfer coefficient reduces, and exhaust gas temperature increases, and the thermal efficiency reduces, and reduces boiler service life.Traditional combusting coal water slurry has
Machine thermal medium boiler radiant tube is generally all based on square coil pipe, not using any deashing, anti-oxidation, the direct cloth of preventing-abrasion method
It is placed in burner hearth.Further, since the boiler of organic heat carrier is operationally, heat medium temperature is higher, many water-coal-slurry organic heat carriers
Boiler there are radiation heating-surface expansion direction is unknown, fixed heating surface fixing device set it is unreasonable caused by heating surface become
Shape reduces boiler service life, heating surface drawing crack failure accidents is present with when serious.
The content of the invention
In order to overcome existing water-coal-slurry organic heat carrier radiation heating-surface there are the thermal efficiency it is relatively low, easy to wear the defects of, this
Utility model provides a kind of can remove automatically and is attached to radiant coil coal slurry flying dust, and with the organic heat carrier pot of combusting coal water slurry
Stove is adapted, and energy free wxpansion, thermal expansion direction understand, free expanding degree is big, and clamp device sets reliable water-coal-slurry organic
Heat carrier radiation heating-surface structure.
Technical solution is used by the utility model solves its technical problem:
A kind of water-coal-slurry organic heat carrier radiation heating-surface structure, upper coil pipe, lower coil pipe including being mounted on upper furnace
And intermediate header, upper furnace are mounted on steelframe, the lower end of the lower coil pipe is connected with Heating medium header, the lower coil pipe
Upper end be connected by intermediate header with the lower end of upper coil pipe, the upper end of the upper coil pipe passes through roof tube and heating agent outlet header
Connection, the upper coil pipe include upper left coil pipe and upper right coil pipe, and the upper left coil pipe is symmetrically arranged with upper right coil pipe, described
Lower coil pipe includes lower-left coil pipe and bottom right coil pipe, and the lower-left coil pipe is symmetrically arranged with bottom right coil pipe, the intermediate header
Including left intermediate header and right intermediate header, the lower-left coil pipe is connected by left intermediate header with the upper left coil pipe, described
Bottom right coil pipe is connected by right intermediate header with the upper right coil pipe;
At the top of the upper furnace sound wave is respectively equipped with above the middle part of upper left coil pipe and above the middle part of upper right coil pipe
Soot blower, the acoustic wave ash ejector are mounted on by acoustic wave ash ejector casing at the top of upper furnace.
Further, the upper coil pipe and lower coil pipe are coated with RSI ceramics to energy meter face heating surface after abrasive jet cleaning and apply
Layer.
Further, the roof tube, which is located at the lower section at the top of upper furnace and passes through ceiling erecting by overhang, is suspended to burner hearth
On the steelframe crossbeam on top.
Further, the upper left coil pipe, upper right coil pipe, lower-left coil pipe and bottom right the coil pipe spacing between furnace wall respectively
For 10~15mm.
Further, the front side of the upper furnace and rear side are respectively at the middle part of upper left coil pipe, the middle part of upper right coil pipe
Equipped with explosion proof door.
Further, the top surrounding of the upper left coil pipe, upper right coil pipe, lower-left coil pipe and bottom right coil pipe respectively passes through
Lateral fastening device is mounted in upper furnace, and the lateral fastening device includes coil pipe shoe plate, otic placode and pull rod, the coil pipe
Shoe plate is arranged vertically at the outside of coil pipe and is located at the outside of coil pipe shoe plate with Coil welding, the otic placode and is welded with coil pipe shoe plate
It connects, the otic placode is equipped with slotted hole along vertical direction, and one end of the pull rod is equipped with drag hook, and the drag hook is hooked on the length
On circular hole, the other end of the pull rod is fastened on through upper furnace on steelframe crossbeam;
The distance of the upward thermal expansion of length >=coil pipe of the slotted hole.
Further, the upper left coil pipe, upper right coil pipe, lower-left coil pipe and bottom right coil pipe are respectively supported by bottom and filled
It puts on steelframe, the base support means include coil pipe under tile plate, radiant tube supporting rack and radiation pipe holder, the disk
Tube bottom shoe plate is welded with coil pipe bottom, and the coil pipe under tile plate is located on the radiant tube supporting rack, the radiant tube supporting rack
It is welded on by radiating pipe holder on steelframe crossbeam;The outer surface of the base support means covers one layer of ceramic fiber blanket.
The beneficial effects of the utility model are mainly manifested in:Can automatic ash removing, improve boiler operatiopn security, prolonged boiler
Service life reduces exhaust gas temperature, improves the water-coal-slurry boiler of organic heat carrier thermal efficiency.
Description of the drawings
Fig. 1 is the overall structure front view of the utility model.
Fig. 2 is the right sectional view of Fig. 1.
Fig. 3 is the laterally attached schematic diagram of coil pipe.
Fig. 4 is the A-A figures of Fig. 3.
Fig. 5 is coil pipe bottom connection diagram.
Fig. 6 is the scheme of installation of acoustic wave ash ejector.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
With reference to Fig. 1~Fig. 6, a kind of water-coal-slurry organic heat carrier radiation heating-surface structure, including being mounted on upper furnace
Upper coil pipe, lower coil pipe and intermediate header 5, upper furnace are mounted on steelframe 1, lower end and the Heating medium header of the lower coil pipe
Connection, the upper end of the lower coil pipe are connected by intermediate header 5 with the lower end of upper coil pipe, and the upper end of the upper coil pipe passes through ceiling
Pipe 10 is connected with heating agent outlet header 15, and the upper coil pipe includes upper left coil pipe 8 and upper right coil pipe 9, the upper left coil pipe 8 and the right side
Upper coil pipe 9 is symmetrically arranged, and the lower coil pipe includes lower-left coil pipe 3 and bottom right coil pipe 4, the lower-left coil pipe 3 and bottom right disk
Pipe 4 is symmetrically arranged, and the intermediate header 5 includes left intermediate header and right intermediate header, and the lower-left coil pipe 3 is by left
Between header be connected with 8 pipe of upper left disk, the bottom right coil pipe 4 is connected by right intermediate header with the upper right coil pipe 9;
At the top of the upper furnace sound wave is respectively equipped with above the middle part of upper left coil pipe and above the middle part of upper right coil pipe
Soot blower 12, the acoustic wave ash ejector 12 are mounted on by acoustic wave ash ejector casing 11 at the top of upper furnace.
Further, the upper coil pipe and lower coil pipe are coated with RSI ceramics to energy meter face heating surface after abrasive jet cleaning and apply
Layer.
Further, the roof tube 10 is located at the lower section at the top of upper furnace and passes through ceiling erecting by overhang 14 and is suspended to
On the steelframe crossbeam on burner hearth top.
Further, the upper left coil pipe 8, upper right coil pipe 9, lower-left coil pipe 3 and bottom right coil pipe 4 are respectively between furnace wall 16
Spacing be 10~15mm.
Further, the front side of the upper furnace and rear side are respectively in the middle part of upper left coil pipe 8, upper right coil pipe 9
Portion is equipped with explosion proof door.
Further, the top surrounding of the upper left coil pipe 8, upper right coil pipe 9, lower-left coil pipe 3 and bottom right coil pipe 4 is respectively
It is mounted on by lateral fastening device in upper furnace, the lateral fastening device includes coil pipe shoe plate 17, otic placode 19 and pull rod
18, the coil pipe shoe plate 17 is arranged vertically at the outside of coil pipe and is welded with coil pipe 30, and the otic placode 19 is located at coil pipe shoe plate 17
Outside and with coil pipe shoe plate weld, the otic placode 19 along vertical direction be equipped with slotted hole, one end of the pull rod 18 is equipped with
Drag hook, the drag hook are hooked on the slotted hole, and the other end of the pull rod 18 is fastened on steelframe crossbeam through upper furnace
On 22;
The distance of the upward thermal expansion of length >=coil pipe of the slotted hole.
Further, the upper left coil pipe 8, upper right coil pipe 9, lower-left coil pipe 3 and bottom right coil pipe 4 respectively pass through bottom branch
Support arrangement is mounted on steelframe 1, and the base support means include coil pipe under tile plate 20, radiant tube supporting rack 2 and radiant tube branch
Frame 21, the coil pipe under tile plate 20 are welded with coil pipe bottom, and the coil pipe under tile plate 20 is located on the radiant tube supporting rack 2,
The radiant tube supporting rack 2 is welded on by radiating pipe holder 21 on steelframe crossbeam 23;The outer surface of the base support means
Cover one layer of ceramic fiber blanket.
As shown in Figure 1 and Figure 2, including steelframe 1, radiant tube supporting rack 2, lower-left coil pipe 3, bottom right coil pipe 4, intermediate header 5,
Inspection door 6, explosion proof door 7, upper left coil pipe 8, upper right coil pipe 9, roof tube 10, acoustic wave ash ejector casing 11, acoustic wave ash ejector 12, top
Canopy furnace wall metallic suspension system 13, ceiling erecting by overhang 14, heating agent outlet header 15, furnace wall 16, coil pipe shoe plate 17, pull rod 18,
Otic placode 19, coil pipe under tile plate 20, radiation pipe holder 21;Arrow in Fig. 1 is the direction that heating agent enters.
After four independent coil pipes complete square coil pipe in factory, by coil pipe being heated face to energy meter face in the burner hearth
Divide and cleared up with blasting method to Sa2.5 grades, complete the coil portions after abrasive jet cleaning again with more than 0.5MPa air compressor machines, mist
Change the RSI ceramic coatings of spray gun spraying 0.05~0.1mm thickness, RSI ceramic coatings are multi-functional compound for protectiveness high emissivity
Rare earth nano material, the transmitting of heat-transfer surface host surface can be increased substantially by completing the coil portions of RSI ceramic coatings spraying
Rate;Prevent high-temperature oxydation, abrasion and the corrosion of coil pipe;Effectively control Slagging;Strengthen radiation, improve coil heat exchange coefficient,
Reduce thermal conduction resistance, optimization burning and diabatic process;Increase coil pipe service life.
To pass through the flow of left and right coil pipe heating agent, uniformity of temperature profile, identical, upper left, lower coil pipe when ensureing boiler operatiopn
With upper right, lower coil pipe using symmetrical distribution, the heated EDS maps and heating agent for making its left and right side coil pipe flow through left and right sides coil pipe
Resistance it is equal.Upper left, lower coil pipe and upper right, lower coil pipe respectively with left intermediate header 51,52 on-the-spot welding of right intermediate header simultaneously
Connection.For ease of left intermediate header and upper left, lower coil pipe, right intermediate header and upper right, lower coil pipe site operation, left and right centre
Header is divided into the upper and lower intermediate header in left upper and lower intermediate header/right side, and the left upper and lower upper and lower intermediate header in intermediate header/right side is in factory
One is reserved compared with theoretical value and grows section at the construction field (site), upper and lower intermediate header is with after the coil pipe trial assembly being each connected, cutting off in factory
Reserved long section part point, then respectively to the upper and lower intermediate header end scene butt welding in left upper and lower intermediate header/right side.
The roof tube 10 is located at furnace roof, and both ends are connected respectively with left and right upper coil pipe and outlet header, roof tube first half
Partly, latter half is suspended to burner hearth top steelframe crossbeam by ceiling erecting by overhang respectively.Ceiling erecting by overhang is connected with ceiling
Part is connected by screw bolts, the drawing that roof tube passes through ceiling erecting by overhang 14 using being welded and fixed with steelframe crossbeam connected component
Bar hangs on steelframe crossbeam, the thermal expansion during boiler operatiopn can be effectively absorbed, so as to the roof tube for preventing thermal expansion and bringing
Thermal deformation increases the service life of boiler.
For furnace roof furnace wall by ceiling furnace wall metallic suspension system 13 independently of roof tube, roof tube and furnace roof furnace wall are mutually only
It is vertical, by ceiling furnace wall metallic suspension system all top furnace wall load suspensions in furnace roof steelframe part.During boiler operatiopn, top
The thermal expansion of canopy pipe is more than furnace wall part, and the two is mutual indepedent, can effectively improve the operational reliability of furnace roof furnace wall, prevent due to gold
The furnace wall cracking leakage cigarette for belonging to thermal expansion and occurring.
Boiler setting 16 outside coil pipe divides three layers from inside to outside:The refractory brick of 114mm thickness, the ceramic fiber blanket of 20mm thickness,
266mm thickness pearlite insulation bricks, the weight load even support of furnace wall is in each beam of steelframe.Furnace wall has 10~15mm's with coil pipe
Gap.Furnace wall keeps the gap of certain distance with roof tube, can prevent from damaging furnace wall due to roof tube thermal expansion, improves boiler
Furnace wall reliability.
The centre position of upper furnace coil pipe on left and right sets explosion proof door 7, and explosion-proof doorframe metal surface covers one layer of pottery
After porcelain fibrofelt, poured with refractory material and fixed with furnace wall.Set explosion proof door be conducive to due to water-coal-slurry in stove chamber inner combustion not
Detonation pressure release caused by steady, prevents from causing the damage to components such as boiler settings due to detonation.
As shown in Figure 3, Figure 4, the lower-left coil pipe 3, bottom right coil pipe 4, upper left coil pipe 8, upper right coil pipe 9, roof tube 10 are
Water-coal-slurry organic heat carrier furnace upper furnace radiation heating-surface, lower-left coil pipe 3, bottom right coil pipe 4, upper left coil pipe 8, upper right coil pipe 9
For four independent square coil pipes, coil pipe is completed in factory, loose mail dispatches from the factory, and completes the components such as coil pipe and steelframe in building-site
Assembling.Installation for ease of coil pipe and steelframe is positioned and fixed, if being designed with dry pan in four coil pipe top surroundings respectively
Pipe shoe plate 17, otic placode 19, otic placode regards coil tubes size and quantity is different, is adopted between coil pipe, coil pipe shoe plate 17,19 three of otic placode
With being welded and fixed.During to eliminate boiler operatiopn, thermal deformation that the upward thermal expansion of coil pipe is connected with fixing piece and is generated, thermal stress,
The otic placode being welded to connect with coil pipe shoe plate is designed to the slotted hole of vertical direction, the slotted hole length dimension >=upward thermal expansion of coil pipe
Size.The welded sub-assembly of coil pipe, coil pipe shoe plate, otic placode is connected and is fixed by pull rod 18 with steelframe crossbeam, pull rod one
With otic placode using drag hook type, the other end is fastened with steelframe crossbeam using bolt at end.
As shown in figure 5, four independent coil pipes are all by being each located on several radiant tube supporting racks of coil pipe lower part surrounding,
Quantity regards coil tubes size and quantity is different, is supported in and the fixed radiation pipe holder 21 of steelframe beam welding, i.e. radiant tube
Supporting rack 2 and the steelframe crossbeam each connected, radiation pipe holder three are fixed using complete penetraction and fusion in welding, radiant tube supporting rack 2
Support plate tube bottom shoe plate 20.During to eliminate boiler operatiopn, coil pipe thermal expansion is generated with fixing piece as radiant tube supporting rack is connected
Thermal deformation, thermal stress, coil pipe under tile plate are fixed with Coil welding, and radiant tube supporting rack must not be welded with coil pipe under tile plate.Radiation
All materials of pipe supporting rack 2, radiation pipe holder 21 select heat safe 310S materials, and in coiled tube supports part outer surface
One layer of ceramic fiber blanket is covered, then is poured with refractory material, to ensure coiled tube supports sub-assembly under burner hearth hot conditions
Reduction to greatest extent furnace wall castable is destroyed due to thermal expansion.
As shown in fig. 6, the left and right coil pipe center position on furnace roof, sets left and right each one, two high-power sound waves respectively
Soot blower 12.For convenience of dismounting, acoustic wave ash ejector 12 is connected by screw bolts with acoustic wave ash ejector casing 11, casing and top steelframe
Beam is welded and fixed, and is poured again with furnace roof furnace wall with castable after acoustic wave ash ejector casing is cladded with one layer of ceramic fiber blanket, should
Acoustic wave ash ejector, which is selected, is resistant to 1000 DEG C of high-temperature alloy steels, and principle is:The acoustical generator of acoustic wave ash ejector be using compressed air as
Power source makes internal high intensity diaphragm generate low-frequency vibration and sends sound wave, then is amplified through public address cylinder, forms low frequency, height
It can sound wave.The high energy sound wave of specific frequency, which can be destroyed effectively, produced by it is deposited in the original packed structures of coil pipe dust, reaches
To the purpose of ash disposal.Its ash disposal mechanism is by the sound wave of high intensity, is sent into various possible dust stratification knots in running coil tubes
The area of space of slag by the effect of acoustic energy, makes the air in these regions generate vibration with dust particles, destroys and prevent
Combination of the powder dust particle between coil surface or particle is allowed to be in suspension fluidization state always, so that flue gas or gravity will
It is taken away.Fly ash content of the boiler of organic heat carrier of combusting coal water slurry in burner hearth is higher, and the flying dust in flue gas is easy to coalesce
The junction in gap between coil pipe wall surface, particularly two pipe of coil pipe.Sound wave is had an effect to being attached to coil surface area ash
Afterwards, because the vibration that acoustic wave energy generates shifts, big, speed is fast, causes flying dust dust that cannot gather, prevents the growth of cinder.Simultaneously
Due to the fatigue effect of high sound strong sound wave, its fracture can also be made to the bulk cinder formed, make the knot between cinder particle
Make a concerted effort to die down, gap increase, the speed of growth are slack-off, clinker volume reduces, be easy to voluntarily come off.The energy of sound wave is the frequency by it
Rate is determined with the sound intensity.The wavelength of low-frequency sound wave is compared with the length of high frequency sound wave, and the influence on the surface to being contacted is also big, therefore
The sound wave of the similary sound intensity, frequency is lower, bigger to the effect of dust.But if frequency is less than 60 hertz, sound wave will likely destroy
Solid structure and mechanical connecting device.The low-limit frequency of acoustic wave ash ejector selected by water-coal-slurry boiler of organic heat carrier is 75 hertz
Hereby, that is, preferable soot blowing effect has been reached and equipment is not caused to damage.
Claims (7)
1. a kind of water-coal-slurry organic heat carrier radiation heating-surface structure, including be mounted on the upper coil pipe of upper furnace, lower coil pipe and
Intermediate header, upper furnace are mounted on steelframe, and the lower end of the lower coil pipe is connected with Heating medium header, the lower coil pipe
Upper end is connected by intermediate header with the lower end of upper coil pipe, and the upper end of the upper coil pipe is connected by roof tube and heating agent outlet header
It connects, it is characterised in that:The upper coil pipe includes upper left coil pipe and upper right coil pipe, and the upper left coil pipe and upper right coil pipe are symmetrical
Arrangement, the lower coil pipe include lower-left coil pipe and bottom right coil pipe, and the lower-left coil pipe is symmetrically arranged with bottom right coil pipe, described
Intermediate header includes left intermediate header and right intermediate header, and the lower-left coil pipe is connected by left intermediate header and the upper left coil pipe
It connects, the bottom right coil pipe is connected by right intermediate header with the upper right coil pipe;
At the top of the upper furnace sonic soot blowing is respectively equipped with above the middle part of upper left coil pipe and above the middle part of upper right coil pipe
Device, the acoustic wave ash ejector are mounted on by acoustic wave ash ejector casing at the top of upper furnace.
2. water-coal-slurry organic heat carrier radiation heating-surface structure as described in claim 1, it is characterised in that:The upper coil pipe and
Lower coil pipe is coated with RSI ceramic coatings to energy meter face heating surface after abrasive jet cleaning.
3. water-coal-slurry organic heat carrier radiation heating-surface structure as claimed in claim 1 or 2, it is characterised in that:The ceiling
Pipe, which is located at the lower section at the top of upper furnace and passes through ceiling erecting by overhang, to be suspended on the steelframe crossbeam on burner hearth top.
4. water-coal-slurry organic heat carrier radiation heating-surface structure as claimed in claim 1 or 2, it is characterised in that:The upper left
The spacing between furnace wall is 10~15mm respectively for coil pipe, upper right coil pipe, lower-left coil pipe and bottom right coil pipe.
5. water-coal-slurry organic heat carrier radiation heating-surface structure as claimed in claim 1 or 2, it is characterised in that:The top
The front side of burner hearth and rear side are equipped with explosion proof door at the middle part of the middle part of upper left coil pipe, upper right coil pipe respectively.
6. water-coal-slurry organic heat carrier radiation heating-surface structure as claimed in claim 1 or 2, it is characterised in that:The upper left
Coil pipe, upper right coil pipe, the top surrounding of lower-left coil pipe and bottom right coil pipe are respectively mounted on upper furnace by lateral fastening device
On thorax, the lateral fastening device includes coil pipe shoe plate, otic placode and pull rod, and the coil pipe shoe plate is arranged vertically at the outside of coil pipe
And with Coil welding, the otic placode is located at the outside of coil pipe shoe plate and welded with coil pipe shoe plate, and the otic placode is along vertical direction
Equipped with slotted hole, one end of the pull rod is equipped with drag hook, and the drag hook is hooked on the slotted hole, the other end of the pull rod
It is fastened on through upper furnace on steelframe crossbeam;
The distance of the upward thermal expansion of length >=coil pipe of the slotted hole.
7. water-coal-slurry organic heat carrier radiation heating-surface structure as claimed in claim 6, it is characterised in that:The upper left disk
Pipe, upper right coil pipe, lower-left coil pipe and bottom right coil pipe are respectively mounted on by base support means on steelframe, the bottom support
Device includes coil pipe under tile plate, radiant tube supporting rack and radiation pipe holder, and the coil pipe under tile plate is welded with coil pipe bottom, described
Coil pipe under tile plate is located on the radiant tube supporting rack, and the radiant tube supporting rack is welded on steelframe crossbeam by radiating pipe holder
On;The outer surface of the base support means covers one layer of ceramic fiber blanket.
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CN201720850804.XU CN207455912U (en) | 2017-07-08 | 2017-07-08 | Water-coal-slurry organic heat carrier radiation heating-surface structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110174020A (en) * | 2019-05-28 | 2019-08-27 | 山东大学 | A kind of heat exchanger of unsymmetrical arrangement |
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2017
- 2017-07-08 CN CN201720850804.XU patent/CN207455912U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110174020A (en) * | 2019-05-28 | 2019-08-27 | 山东大学 | A kind of heat exchanger of unsymmetrical arrangement |
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