CN207330838U - Heat-exchanger rig for semicoke dry coke quenching - Google Patents
Heat-exchanger rig for semicoke dry coke quenching Download PDFInfo
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- CN207330838U CN207330838U CN201721107755.7U CN201721107755U CN207330838U CN 207330838 U CN207330838 U CN 207330838U CN 201721107755 U CN201721107755 U CN 201721107755U CN 207330838 U CN207330838 U CN 207330838U
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Abstract
The utility model provides a kind of heat-exchanger rig for semicoke dry coke quenching.The heat-exchanger rig includes at least one cooling unit, and cooling unit includes at least two membrane wall heat-exchanging components being set up in parallel, and membrane wall heat-exchanging component is to semicoke progress dry coke quenching processing.Heat exchange is carried out by using membrane wall heat-exchanging component and effectively increases heat exchange area, improves the heat exchange efficiency of cooling unit, so that the heat-exchanger rig that the application provides is increased without the temperature that highly can just reach needed for dry coke quenching technological requirement that exchanges heat.
Description
Technical field
Dry Quenching field is the utility model is related to, in particular to a kind of heat-exchanger rig for semicoke dry coke quenching.
Background technology
Dry Quenching (Coke Dry Quenching) abbreviation dry coke quenching (CDQ), is the use for coke wet quenching
Inert gas extinguishes a kind of coke quenching method of red-hot coke.Current Dry Quenching Technology is by coal carbonization temperature or coking extent point
For two kinds of coke Dry Quenching Technology and the Dry Quenching Technology of semicoke.
High-temperature retorting (coking) dry coke quenching technique：Groove is put out dry, using cold inert gas (150 DEG C) and red-hot coke
(950~1050 DEG C) exchange heat, so that incandescent coke is cooled down (200 DEG C).Absorb the inert gas of coke heat
Heat is transmitted to coke dry quenching boiler and produces steam by (850 DEG C), this causes the inert gas after above-mentioned heat absorption to be cooled.It is cooled
Inert gas dry put out in groove blasted by circulating fan again recycled.The middle pressure (or high pressure) that coke dry quenching boiler produces is steamed
Vapour is incorporated to factory's internal steam pipe net or for generating electricity.This technology is adapted to the quenching of the high-temperature-coked of block coking coal.
The product that the middle low temperature distillation of smalls obtains is less half breeze of granularity.For the dry of half breeze continous way production
The process equipment of quenching, mainly monomer vertical type solid waste heat boiler (or crying solid dustless cooling device).High-temperature semi-coke
End enters boiler from the top of solid waste heat boiler, is cooled down successively by the difference of exchanger in semicoke under gravity
Section, occurs heat exchange with internal desalted waters such as the boiler tube walls of waste heat boiler.After heat exchange, the temperature of half breeze is down to 200 DEG C
Hereinafter, and from the discharger group of waste heat boiler lower part draw off.But dry coke quenching is carried out with single-body vertical solid waste heat boiler, because changing
The needs of hot stroke (time), it is excessive for the dry coke quenching yield of 100t/h, the total setting height(from bottom) of equipment.
At present using circulated inert gas cooling dry quenching system, but it is adapted to the dry of block Jiao that high-temperature retorting obtains
Quenching, is not suitable for the dry coke quenching for the half breeze shape that smalls low temperature distillation obtains.Because one side semicoke is in cooling procedure still
There is coal gas precipitation, the coal gas that inert gas contains in circulating can be caused more and more, produce security risk；On the other hand, powder
Shape semicoke be also unfavorable for inert gas by with heat exchange.The circulated inert gas dry coke quenching equipment system of traditional coking process is answered
Miscellaneous, space is big, and public auxiliary auxiliary facility is various, and investment is huge.
The current dry coke quenching process equipment for being successfully used in smalls low temperature distillation, using single-body vertical solid waste heat boiler
Stove or the dustless cooling device of solid.For large-tonnage smalls low temperature distillation, to reach the temperature parameter of extinguishing technique requirement, give up
The setting height(from bottom) of pot is too high, otherwise cause previous workshop section's distillation apparatus setting height(from bottom) excessive.
Utility model content
The main purpose of the utility model is that a kind of heat-exchanger rig for semicoke dry coke quenching is provided, it is existing to solve
The problem of device height of half parch breath method heat transmission equipment is higher.
To achieve these goals, the utility model provides a kind of heat-exchanger rig for semicoke dry coke quenching, heat exchange dress
Put includes at least two membrane wall heat-exchanging components being set up in parallel including at least one cooling unit, cooling unit, and membrane wall changes
Hot component is to semicoke progress dry coke quenching processing.
Further, heat-exchanger rig further includes：Hot-water supply device, hot-water supply device pass through with membrane wall heat-exchanging component
Delivery pipeline is connected, and hot-water supply device is used for the hot water that membrane wall heat-exchanging component supply temperature is 80~100 DEG C.
Further, cooling duct is formed between adjacent membrane wall heat-exchanging component, feed inlet is provided with cooling unit,
Heat-exchanger rig further includes tripper, for the material dispersion to be cooled that will be added from feed inlet into cooling duct.
Further, heat-exchanger rig includes cooling chamber and at least one splicing chamber, cooling unit are arranged in cooling chamber, connect
Material chamber is connected with cooling unit to receive the material of cooling duct discharge, and splicing chamber is corresponded with cooling unit and set.
Further, cooling chamber includes：Outer wall, outer wall include side wall and roof, and feed inlet is arranged on roof, side wall and
Roof forms the cavity that bottom is opening, and opening is connected with splicing chamber；Liner, liner set the inner side of outer wall；
Heat insulation layer, heat insulation layer are arranged between outer wall and liner.
Further, heat-exchanger rig further includes at least one discharge device, and discharge device is connected with splicing chamber, and discharge fills
Put to correspond with splicing chamber and set.
Further, splicing chamber is cone-shaped cavity, and fold is provided with the tapered wall of cone-shaped cavity.
Further, the vertex of a cone of cone-shaped cavity is connected with discharge device, and the cone bottom of cone-shaped cavity is connected with cooling unit.
Further, discharge device is gas force closed type discharger.
Further, heat-exchanger rig further includes：Level-sensing device, level-sensing device are used for the material position for detecting material in cooling duct；And
Feeding controller, feeding controller are arranged at feed inlet, for controlling the charging of feed inlet.
Further, at least one excessive gas port is provided with roof.
Further, heat-exchanger rig further includes：At least one first temperature-detecting device, is arranged on roof, for examining
Survey the temperature of the inside of cooling unit；And at least one second temperature detection device, it is arranged on splicing chamber, for detecting discharge
Temperature inside device.
Further, heat-exchanger rig includes stent, and stent is arranged on the outside of cooling unit, is used to support cooling unit.
Using the technical solution of the utility model, carry out heat exchange by using membrane wall heat-exchanging component and effectively increase to change
Hot area, improves the heat exchange efficiency of cooling unit, so that the heat-exchanger rig that the application provides is increased without heat exchange height
The temperature needed for extinguishing technique requirement can just be reached.
Brief description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
New schematic description and description is used to explain the utility model, does not form the improper restriction to the utility model.
In the accompanying drawings：
Fig. 1 shows the heat exchange for semicoke dry coke quenching that a kind of preferred embodiment according to the present utility model provides
The front view of device；And
Fig. 2 shows the heat exchange for semicoke dry coke quenching that a kind of preferred embodiment according to the present utility model provides
The top view of device.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, cooling chamber；11st, cooling unit；111st, membrane wall heat-exchanging component；101st, feed inlet；12nd, tripper；13rd, it is outer
Wall；14th, liner；15th, heat insulation layer；16th, feeding controller；17th, overflow gas port；20th, hot-water supply device；30th, splicing chamber；31st, arrange
Expect device；32nd, the first temperature-detecting device；33rd, second temperature detection device；40th, stent.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As the problem of background technology is described, and the device height of existing half parch breath method heat transmission equipment is higher.For
Solution above-mentioned technical problem, the utility model provide a kind of heat-exchanger rig for semicoke dry coke quenching, as shown in Figure 1, should
Heat-exchanger rig includes at least one cooling unit 11, which includes at least two membrane wall heat exchange groups being set up in parallel
Part 111, membrane wall heat-exchanging component 111 is to semicoke progress dry coke quenching processing.
Heat exchange is carried out by using membrane wall heat-exchanging component 111 and effectively increases heat exchange area, improves cooling unit
11 heat exchange efficiency so that the application provide heat-exchanger rig be increased without heat exchange height can just reach extinguishing technique will
Seek required temperature.
Using steam-type solid waste heat boiler, to the more demanding, it is necessary to substantial amounts of demineralized water of boiler water.A kind of preferred
Embodiment in, heat-exchanger rig further includes hot-water supply device 20, and hot-water supply device 20 is logical with membrane wall heat-exchanging component 111
Superheated water transfer pipeline is connected, and it is 80~100 DEG C that hot-water supply device 20, which is used for 111 supply temperature of membrane wall heat-exchanging component,
Hot water.
Using the hot water that hot-water supply device 20 provides as cold coal, while the heat exported from membrane wall heat-exchanging component 111
Water, due to absorbing substantial amounts of heat in heat transfer process, so needing after being cooled to required temperature, then passes through circulation pipe
Road is recycled.
Preferably, which further includes Recovery of the hot water unit, for Recovery of the hot water unit and membrane wall heat-exchanging component
111 outlet is connected by hot water delivery pipe road, and hot water recovery unit passes through hot-water circulation pipe with hot-water supply device 20
Road is connected.
In cooling procedure only need circulate soft water cooling can, so as to save the step of preparing demineralized water, section
About process costs.Preferably, hot-water supply device 20 is positioned over the lower section of cooling chamber 10, and hot water recovery unit is positioned over cooling
The top of chamber 10.This is conducive to improve cooling effectiveness.
Preferably, as shown in Fig. 2, heat-exchanger rig includes four cooling units 11, and each cooling unit 11 is respectively provided with
There are hot-water supply device 20 and Recovery of the hot water unit with matching.
In a preferred embodiment, as illustrated in fig. 1 and 2, formed between adjacent membrane wall heat-exchanging component 111 cold
But passage, is provided with feed inlet 101 on cooling unit 11, and heat-exchanger rig further includes tripper 12, for will from feed inlet 101 plus
The material dispersion to be cooled entered is into cooling duct.In cooling unit 11, formed between adjacent membrane wall heat-exchanging component 111
Cooling duct, refrigerant is in 111 internal flow of membrane wall heat-exchanging component, while material to be cooled carries out in above-mentioned cooling duct
Cooling, is discharged after cooling from the lower part of cooling duct.Preferably, the flow direction of refrigerant and material to be cooled is in reverse flow.
Hot water does pressure and circulates in pipe, takes away semicoke liberated heat, completes heat exchange.Because the pressure of hot water is far above in pipe
The saturation pressure of water, water will not produce boiling phenomenon in pipe, to ensure the safe operation of equipment.It is cold that thermal shielding type is changed using membrane wall
But, stream walks the form of big plane gap between screen, can eliminate the inhomogeneous cooling of material；Stream will not block, and save block clearing dress
Put；And core pulling phenomenon will not occur.
As shown in Fig. 2, tripper 12 is cross.Certain above-mentioned " cross " does not have absolute sense, as long as can
Realize that the function of sub-material belongs to the protection domain of the application.
In the application, the specific structure of heat-exchanger rig does not have special requirement, as long as can solve the application to be solved
Technical problem.Preferably, as shown in Figure 1, heat-exchanger rig includes cooling chamber 10 and at least one splicing chamber 30, cooling is single
Member 11 is arranged in cooling chamber 10, and splicing chamber 30 is connected with cooling unit 11 to receive the material of cooling duct discharge, and splicing
Chamber 30 is corresponded with cooling unit 11 and set.
In a preferred embodiment, as shown in Figure 1, cooling chamber 10 includes outer wall 13, liner 14 and heat insulation layer 15.
Wherein, outer wall 13 includes side wall and roof, and feed inlet 101 is arranged on roof, and side wall and roof form the sky that bottom is opening
Chamber, and opening is connected with splicing chamber 30；Liner 14 sets the inner side of outer wall 13, and heat insulation layer 15 is arranged on outer wall 13 and liner 14
Between.Heat-insulating material is set to be conducive to prevent the cold in cooling unit 11 from being consumed by external environment in the inside of cooling chamber 10,
And then be conducive to improve the efficiency of cooling.Since the wearability of heat-insulating material is poor under normal conditions, thus in heat-insulating material
Inside sets liner 14 to be conducive to prevent heat-insulating material to be worn.It is preferred that the liner 14 of metal material.
Preferably, the outer wall 13 of cooling chamber 10 has square box shape structure, this causes solid granule powder material certainly
There is certain angle of repose in right stacking process, so, 10 inside overhead of cooling chamber has an excessive headroom, high-temperature semi-coke all the time
The middle gas for continuing to separate out smoothly can be overflowed and discharged；It also can ensure that water-cooling wall is buried in half breeze without outer all the time
Dew, also further avoid high oily and is directly contacted with membrane wall heat-exchanging component 111 and separate out tar, produced and glue stifled wind
Danger.
In a preferred embodiment, as shown in Figure 1, heat-exchanger rig further includes at least one discharge device 31, row
Material device 31 is connected with splicing chamber 30, and discharge device 31 is corresponded with splicing chamber 30 and set.Splicing chamber 30 is arranged to be connected
Logical discharge device 31 is conducive to improve discharge rate.
Usual splicing chamber 30 is metal material, thus at a higher temperature, weld seam can produce coal because of thermal stress-cracking
The problem of gas leaks.To solve the above-mentioned problems, it is preferable that splicing chamber 30 is cone-shaped cavity, and in the tapered wall of cone-shaped cavity
It is provided with fold.
In a preferred embodiment, the vertex of a cone of cone-shaped cavity is connected with discharge device 31, the cone bottom of cone-shaped cavity
It is connected with cooling unit 11, this material for being conducive to obtain after cooling is assembled, and then concentrates discharge.
In a preferred embodiment, discharge device 31 is gas force closed type discharger.Can using gas force closed type discharger
The air-tightness of cooling unit 11 is kept while discharging, so as to reduce further membrane wall heat-exchanging component 111 and high oil-containing
Gas directly contacts and separates out tar, produces and glue stifled risk.
In a preferred embodiment, as shown in Figure 1, heat-exchanger rig further includes level-sensing device and feeding controller 16
(being represented in figure with bump).Wherein, level-sensing device is used for the material position for detecting material in cooling duct；And feeding controller 16 is arranged on
Feed inlet 101, for controlling the charging of feed inlet 101.Level-sensing device and feeding controller 16 are set at the same time, can ensure to cool down
In unit 11 in the case of material position, make to keep certain height of materials in the feeding pipe that feed inlet 101 goes out, this can make to play
The purpose of sealed feed inlet 101.This aspect avoids substantial amounts of high oil-containing raw coke oven gas in the distillation apparatus of upstream from directly being filled with heat exchange
The cooling unit 11 for putting inside contacts, and separates out tar, and then produces and glue stifled phenomenon.In addition, to the material position in feed pipe into
Row detection is easy to implement, and reliably.
Due to that can cause gas pulsation in fill process, it is larger in turn result in the current rate of 11 bottom of cooling unit, this
It is unfavorable for the progress of charging.In a preferred embodiment, as shown in Figure 1, being provided with least one excessive gas port on roof
17.Set the gas port 17 that overflows to discharge the gas on 11 top of cooling unit, and then be conducive to improve feed rate.
Preferably, as shown in Figure 1, heat-exchanger rig further includes at least one first temperature-detecting device 32 and at least one
Two temperature-detecting devices 33.Wherein, the first temperature-detecting device 32 is arranged on roof, for detecting the inside of cooling unit 11
Temperature；And second temperature detection device 33 is arranged on splicing chamber 30, for detecting the temperature inside discharge device 31.
Preferably, as shown in Figure 1, heat-exchanger rig includes stent 40, stent 40 is arranged on the outside of cooling unit 11, is used for
Support cooling unit 11.
Embodiment 1
Cooled down using double of parch quenching of heat-exchanger rig shown in Fig. 1.The heat-exchanger rig includes cooling chamber 10, four
Hot-water supply device 20, splicing chamber 30 and stent 40.Cooling chamber 10 includes outer wall 13, liner 14, heat insulation layer 15, and outer wall 13 includes
Side wall and roof, feed inlet 101 are arranged on roof, and side wall and roof form the cavity that bottom is opening, and opening and splicing
Chamber 30 connects；Liner 14 is arranged between cooling unit 11 and outer wall 13, heat insulation layer 15 be arranged on outer wall 13 and liner 14 it
Between.Above-mentioned heat-exchanger rig further includes four cooling units being arranged on inside cooling chamber 11, the inside of each cooling unit 11
It is provided with membrane wall heat-exchanging component 111.Cooling duct is formed between adjacent membrane wall heat-exchanging component 111, refrigerant is in membrane wall
The lower part of 111 internal flow cooling duct of heat-exchanging component is connected with splicing chamber 30.
Concrete technology is as follows：
High-temperature semi-coke from upstream equipment falls from feed inlet 101, under the action of tripper 12, enters each cooling
The inner cavity of unit 11.In order to ensure that high-temperature semi-coke is full of each cooling unit 11, in the monitoring feedback and feeding controller of level-sensing device
All the time half breeze for having certain altitude in the dipleg section for ensureing to be connected with feed inlet under the action of 16 is sealed as material.
Half breeze enters cooling unit 11 by 12 sub-material of tripper, subsequently into adjacent membrane wall heat-exchanging component 111
Between cooling duct, refrigerant in 111 internal flow of membrane wall heat-exchanging component, material to be cooled in above-mentioned cooling duct into
Row cooling, is expelled in splicing chamber 30 after cooling from the lower part of cooling duct.Splicing chamber 30 has cone structure, in the work of gravity
Under, material after cooling converges to the top of cone.Through 31 (gas force closed type of discharge device after temperature is down to regulation technological temperature
Discharger) one of conveying equipment is discharged into down, complete dry coke quenching process.
The air accumulation that semicoke continues to be pyrolyzed out in cooling procedure passes through the gas port 17 that overflows to the space for 17 lower part of gas port of overflowing
Into follow-up air-channel system.Each cooling unit 11 is equipped with independent hot-water supply device 20 at the same time.The flow of refrigerant leads to
The feedback signal for crossing the first temperature-detecting device 32 and second temperature detection device 33 (thermocouple) carries out feeding water controller
Adjust, to ensure drop temperature.
It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：
The heat exchange efficiency for the heat-exchanger rig for semicoke dry coke quenching that the application provides is high, and total setting height(from bottom) of equipment is low,
Need supporting checkout facility few, easily realize.Because using hot water circuit cooling quenching, only needing industrial cycle soft water, avoiding
Demineralized water needed for original steam waste heat boiler.High-temperature material is walked between membrane wall heat-exchanging component into luggage east, cooling water at the same time
Tube side in fin panel casing heat exchange screen.Current and stream are in reverse flow.Hot water does pressure and circulates in pipe, takes away semicoke
Liberated heat, completes heat exchange.Because the pressure of hot water is far above the saturation pressure of water in pipe, water will not produce boiling in pipe
Phenomenon, to ensure the safe operation of equipment.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (13)
1. a kind of heat-exchanger rig for semicoke dry coke quenching, it is characterised in that it is single that the heat-exchanger rig includes at least one cooling
First (11), the cooling unit (11) include at least two membrane wall heat-exchanging components (111) being set up in parallel, and the membrane wall changes
Hot component (111) is to semicoke progress dry coke quenching processing.
2. heat-exchanger rig according to claim 1, it is characterised in that the heat-exchanger rig further includes：
Hot-water supply device (20), the hot-water supply device (20) and the membrane wall heat-exchanging component (111) are defeated by hot water
Send pipeline to be connected, the hot-water supply device (20) be used for membrane wall heat-exchanging component (111) supply temperature for 80~
100 DEG C of hot water.
3. heat-exchanger rig according to claim 2, it is characterised in that the adjacent membrane wall heat-exchanging component (111) it
Between form cooling duct, be provided with feed inlet (101) on the cooling unit (11), the heat-exchanger rig further includes tripper
(12), for will from the feed inlet (101) add material dispersion to be cooled into the cooling duct.
4. heat-exchanger rig according to claim 3, it is characterised in that the heat-exchanger rig is including cooling chamber (10) and at least
One splicing chamber (30), the cooling unit (11) are arranged in the cooling chamber (10), the splicing chamber (30) with it is described cold
But unit (11) is connected to receive the material of the cooling duct discharge, and the splicing chamber (30) and the cooling unit (11)
Correspond and set.
5. heat-exchanger rig according to claim 4, it is characterised in that the cooling chamber (10) includes：
Outer wall (13), the outer wall (13) include side wall and roof, and the feed inlet (101) is arranged on the roof, described
Side wall and the roof form the cavity that bottom is opening, and the opening is connected with the splicing chamber (30)；
Liner (14), the liner (14) are arranged on the inner side of the outer wall (13)；
Heat insulation layer (15), the heat insulation layer (15) are arranged between the outer wall (13) and the liner (14).
6. heat-exchanger rig according to claim 5, it is characterised in that the heat-exchanger rig further includes at least one discharge dress
Put (31), the discharge device (31) connects with the splicing chamber (30), and the discharge device (31) and the splicing chamber
(30) correspond and set.
7. heat-exchanger rig according to claim 6, it is characterised in that the splicing chamber (30) is cone-shaped cavity, and described
Fold is provided with the tapered wall of cone-shaped cavity.
8. heat-exchanger rig according to claim 7, it is characterised in that the vertex of a cone of the cone-shaped cavity and the discharge device
(31) it is connected, the cone bottom of the cone-shaped cavity is connected with the cooling unit (11).
9. heat-exchanger rig according to claim 8, it is characterised in that the discharge device (31) is gas force closed type discharger.
10. heat-exchanger rig according to claim 9, it is characterised in that the heat-exchanger rig further includes：
Level-sensing device, the level-sensing device are used for the material position for detecting material in the cooling duct；And
Feeding controller (16), the feeding controller (16) is arranged on the feed inlet (101) place, for controlling the charging
The charging of mouth (101).
11. heat-exchanger rig according to claim 5, it is characterised in that at least one excessive gas port is provided with the roof
(17)。
12. heat-exchanger rig according to claim 11, it is characterised in that the heat-exchanger rig further includes：
At least one first temperature-detecting device (32), is arranged on the roof, for detecting the cooling unit (11)
Internal temperature；And
At least one second temperature detection device (33), is arranged on the splicing chamber (30), for detecting the splicing chamber
(30) internal temperature.
13. heat-exchanger rig according to claim 12, it is characterised in that the heat-exchanger rig includes stent (40), described
Stent (40) is arranged on the outside of the cooling unit (11), is used to support the cooling unit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107755.7U CN207330838U (en) | 2017-08-31 | 2017-08-31 | Heat-exchanger rig for semicoke dry coke quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721107755.7U CN207330838U (en) | 2017-08-31 | 2017-08-31 | Heat-exchanger rig for semicoke dry coke quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207330838U true CN207330838U (en) | 2018-05-08 |
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ID=62371758
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721107755.7U Active CN207330838U (en) | 2017-08-31 | 2017-08-31 | Heat-exchanger rig for semicoke dry coke quenching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906763A (en) * | 2019-12-03 | 2020-03-24 | 西安交通大学 | Waste heat recovery system and method based on combined cooling of high-temperature solid particles |
-
2017
- 2017-08-31 CN CN201721107755.7U patent/CN207330838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906763A (en) * | 2019-12-03 | 2020-03-24 | 西安交通大学 | Waste heat recovery system and method based on combined cooling of high-temperature solid particles |
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