CN216010792U - High-temperature semi-coke waste heat utilization heat exchanger - Google Patents
High-temperature semi-coke waste heat utilization heat exchanger Download PDFInfo
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- CN216010792U CN216010792U CN202122123492.1U CN202122123492U CN216010792U CN 216010792 U CN216010792 U CN 216010792U CN 202122123492 U CN202122123492 U CN 202122123492U CN 216010792 U CN216010792 U CN 216010792U
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Abstract
The utility model discloses a blue charcoal waste heat utilization heat exchanger of high temperature relates to plain trade technical field of charcoal, including upper and lower collection case and the lower collection case that corresponds the setting, through a plurality of first heat exchange tube intercommunications between upper collection case and the lower collection case, be provided with first diaphragm type wall between the adjacent first heat exchange tube, first diaphragm type wall encloses into a closed unloading passageway with the region between a plurality of first heat exchange tubes, is provided with at least one cooling water inlet on the lower collection case, is provided with at least one steam outlet on the upper collection case. The utility model realizes the recycling of semi-coke waste heat through cooling water by putting high-temperature semi-coke into the inner cavity of the heat exchanger from the upper header; water is not directly contacted with the semi-coke in the semi-coke cooling process, and the semi-coke cooling is drying cooling, so that no additional drying is needed and no harmful substance is generated; the cooling water flows from bottom to top, so that the water temperature is increased from bottom to top, and the semi coke is sequentially cooled when being subjected to heat exchange, so that the performance of the semi coke is damaged.
Description
Technical Field
The utility model relates to a plain trade technical field of charcoal, in particular to blue charcoal waste heat utilization heat exchanger of high temperature.
Background
Semi coke can replace coke (metallurgical coke) and can be widely used in the industries of chemical industry, smelting, gas making and the like, and is superior to coke in the process of producing high-energy-consumption products such as metal silicon, ferroalloy, ferrosilicon, silicomanganese, chemical fertilizer, calcium carbide and the like.
At present, a water quenching method and a semi-dry quenching method are mainly used in the semi-coke production cooling process, calcined semi-coke is directly immersed in water or sprayed with water to cool in the falling process, and then coal gas obtained in semi-coke production is used for drying and then is transported and stored. This approach has the following disadvantages: 1. sensible heat of the semi-coke is completely wasted and is not utilized; 2. the water extinguishing not only causes evaporation waste of a large amount of water, but also causes spot black smoke and miasma, the environmental pollution is serious, and the working environment of workers is poor; 3. the high-temperature semi-coke is contacted with water to generate a large amount of harmful substances such as phenol, cyan compounds, sulfur compounds and the like, and the cost is additionally increased for treating the harmful substances; 4. the cooled wet semi coke needs to be heated and dried, so that a large amount of coal gas is wasted; 5. the high-temperature semi-coke is rapidly cooled in water, the internal structure of the semi-coke generates great thermal stress, more reticular cracks and high porosity, so the rotary drum strength is low, and the semi-coke is easy to break into small blocks.
Disclosure of Invention
To above defect, the utility model aims at providing a blue charcoal waste heat utilization heat exchanger of high temperature, this blue charcoal waste heat utilization heat exchanger of high temperature can be through the mode of heat transfer with the blue charcoal cooling of high temperature, and energy-concerving and environment-protective can guarantee the performance of blue charcoal moreover.
In order to realize the purpose, the technical scheme of the utility model is that:
the utility model provides a blue charcoal waste heat utilization heat exchanger of high temperature, includes upper header and lower header that corresponds the setting from top to bottom, upper header with through a plurality of first heat exchange tube intercommunications between the lower header, it is adjacent be provided with first diaphragm type wall between the first heat exchange tube, first diaphragm type wall with first heat exchange tube encloses into and seals unloading passageway, be provided with at least one cooling water entry on the lower header, be provided with at least one steam outlet on the upper header.
Wherein, the upper header and the lower header are both of annular structures.
The upper header is provided with a plurality of inner upper transverse pipes, two ends of each inner upper transverse pipe are communicated with the upper header, the lower header is provided with a plurality of inner lower transverse pipes, two ends of each inner lower transverse pipe are communicated with the lower header, the inner upper transverse pipes and the inner lower transverse pipes are arranged in a vertically corresponding mode, the inner upper transverse pipes are communicated with the inner lower transverse pipes through second heat exchange pipes, a second membrane wall is arranged between the adjacent second heat exchange pipes, and the second membrane wall and the second heat exchange pipes divide the blanking channel into a plurality of small blanking channels.
Wherein, still be provided with the drain on the lower header.
The first heat exchange tube is provided with a first heat exchange fin, and the first heat exchange fin extends into the blanking channel.
And a second heat exchange fin is arranged on the second heat exchange tube.
And the outer surface of the heat exchanger is provided with a heat insulation layer.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model relates to a blue charcoal waste heat utilization heat exchanger of high temperature corresponds last collection case and the lower collection case that sets up including from top to bottom, go up the collection case with through a plurality of first heat exchange tube intercommunications between the lower collection case, it is adjacent be provided with first diaphragm type wall between the first heat exchange tube, first diaphragm type wall with first heat exchange tube encloses into and seals unloading passageway, be provided with at least one cooling water entry on the lower collection case, upward be provided with at least one steam outlet on the collection case. The utility model discloses a put into the heat exchanger inner chamber with high temperature blue charcoal from last header, rely on gravity from the unloading passageway whereabouts, water flows from bottom to top in first heat exchange tube, with blue charcoal indirect heat transfer, absorb blue charcoal sensible heat, generate the mixture of water and steam, the mixture is discharged from the steam outlet on last header and is entered into water-gas separation device, then enters into other equipment that steam utilized to realize the recycle of blue charcoal waste heat; water is not directly contacted with the semi-coke in the semi-coke cooling process, the semi-coke cooling mode is drying cooling, so that no additional drying is needed, no harmful substance is generated, and steam generated in the cooling process can be fully recycled, thereby greatly saving energy; the cooling water flows from bottom to top, so that the water temperature is increased from bottom to top, and the semi coke is sequentially cooled when being subjected to heat exchange, so that the performance of the semi coke is damaged.
Because the upper header and the lower header are of an annular structure, the upper header is provided with a plurality of inner upper transverse pipes, two ends of each inner upper transverse pipe are communicated with the upper header, the lower header is provided with a plurality of inner lower transverse pipes, two ends of each inner lower transverse pipe are communicated with the lower header, the inner upper transverse pipes and the inner lower transverse pipes are correspondingly arranged up and down, the inner upper transverse pipes and the inner lower transverse pipes are communicated through second heat exchange pipes, a second membrane type wall is arranged between every two adjacent second heat exchange pipes, the second membrane type wall and the second heat exchange pipes divide the blanking channels into a plurality of small blanking channels, the blanking channels are divided into a plurality of small blanking channels, the contact area between the heat exchange pipes and semi-coke is increased in a limited space, the heat conduction distance between the heat exchange pipes and the semi-coke is reduced, and the cooling efficiency of the semi coke is improved.
Because the lower header is also provided with a sewage draining outlet, impurities in water can be drained periodically, and the blockage caused by accumulation in a pipeline is prevented.
Because be provided with first heat transfer fin on the first heat exchange tube, in first heat transfer fin extended into the unloading passageway, through setting up first heat transfer fin, can increase the area of contact of first heat exchange tube and blue charcoal to improve heat exchange efficiency.
Because the heat exchanger surface is equipped with the heat preservation, avoided the danger of scald, make workman operational environment comfortable moreover.
To sum up, the utility model discloses the blue charcoal waste heat utilization heat exchanger of high temperature has solved prior art normal water and has put out the law and extinguish blue charcoal and cause blue charcoal waste heat and water resource waste to produce harmful substance's technical problem, the utility model discloses a mode of heat transfer extinguishes high temperature blue charcoal, and is energy-concerving and environment-protective, can guarantee the performance of blue charcoal moreover.
Drawings
Fig. 1 is a front view of the high-temperature semi-coke waste heat utilization heat exchanger of the utility model;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 1;
FIG. 5 is a schematic structural view of a first heat exchange tube and a first membrane wall;
FIG. 6 is a schematic structural view of a first heat exchange tube and a first heat exchange fin;
in the figure: 10. the heat exchanger comprises an upper collecting box, 11 inner upper transverse pipes, 12 inner upper transverse pipes, 20 steam outlets, a lower collecting box, 21 inner lower transverse pipes, 22 cooling water inlets, 23 drain outlets, 30 first heat exchange pipes, 301 fixing sleeves, 31 first membrane type walls, 33 second heat exchange pipes, 34 second membrane type walls, 35 first heat exchange fins.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
All the orientations referred to in the present specification are based on the orientations shown in the drawings, and only represent relative positional relationships, not absolute positional relationships.
The utility model provides a blue charcoal waste heat utilization heat exchanger of high temperature, this heat exchanger upper portion direct mount in blue charcoal furnace discharge gate (not shown in the figure), can adopt seal welding or can dismantle sealing connection, the utility model discloses do not limit to this, lower part and second grade cooling or direct and discharging device sealing connection (not shown in the figure) to prevent gas leakage.
As shown in fig. 1, 2, 3 and 4, the high-temperature semi-coke waste heat utilization heat exchanger includes an upper header 10 and a lower header 20 which are arranged in a vertically corresponding manner. Go up between collection case 10 and the lower collection case 20 through a plurality of first heat exchange tubes 30 intercommunication, the fixed first diaphragm type wall 31 that is provided with between the adjacent first heat exchange tube 30, the utility model discloses a full weld form is fixed. The first membrane wall 31 and the first heat exchange tubes 30 enclose a closed blanking channel. Go up collection case 10 and lower collection case 20 and be the loop configuration, what this embodiment adopted is waist type loop configuration, can also adopt circular structure, square structure or other shapes in the actual design, the utility model discloses do not do the restriction to this. The upper header 10 and the lower header 20 in this embodiment have the same shape and size, and a straight cylindrical blanking channel is defined by the first film-type wall 31 and the first heat exchange tube 30, so that in practical application, the size of the upper header 10 is different from that of the lower header 20 according to the requirements of a use site and the needs of customers, the size of the lower header 20 is larger than that of the upper header 10, and the defined blanking channel is in a conical cylinder shape.
Preferably, the upper header 10 is provided with a plurality of inner upper transverse pipes 11, and two ends of each inner upper transverse pipe 11 are communicated with the upper header 10; similarly, a plurality of inner lower transverse tubes 21 are arranged on the lower header 20, two ends of each inner lower transverse tube 21 are communicated with the lower header 20, the inner upper transverse tubes 11 and the inner lower transverse tubes 21 are arranged up and down correspondingly, the inner upper transverse tubes 11 and the inner lower transverse tubes 21 are communicated through second heat exchange tubes 33, second membrane type walls 34 are arranged between the adjacent second heat exchange tubes 33, and the second membrane type walls 34 divide the blanking channels into a plurality of small blanking channels. The lower header 20 is provided with at least one cooling water inlet 22 and the upper header 10 is provided with at least one steam outlet 12. The utility model discloses be provided with 1 cooling water entry 22 on lower header 20, be provided with two steam outlet 12 on last header 10, two steam outlet 12 are located relative both sides respectively, still can be provided with a plurality ofly among the practical application, and this embodiment does not do the restriction to this.
Preferably, as shown in fig. 2 and 4 together, the lower header 20 is further provided with a drain outlet 23.
In order to increase the heat conduction efficiency, heat fins may be added to the first heat exchange tube 30 and the second heat exchange tube 33, and the heat fins have two structures, which will be described in detail in the first embodiment and the second embodiment.
Preferably, as shown in fig. 6, the first heat exchange tube 30 is provided with a first heat exchange fin 35, the first heat exchange fin 35 is made of a metal sheet with a high heat conductivity coefficient, the first heat exchange fin 35 is fixedly arranged on the first heat exchange tube 30, and the first heat exchange fin 35 extends into the blanking channel. Be provided with second heat exchange fin (not shown in the figure) on the second heat exchange tube 33, second heat exchange fin structure is unanimous with first heat exchange fin 35 structure, and this embodiment is no longer repeated, nevertheless because second heat exchange tube 33 both sides all will contact with blue charcoal, so second heat exchange fin can set up and also can only set up one side in second heat exchange tube 33 both sides. The heat preservation layer is arranged on the outer surface of the heat exchanger, the highest temperature of the outer surface of the heat exchanger is not higher than 60 ℃ due to the heat preservation layer, scalding hazards are avoided, and the working environment of workers is comfortable.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the working flow of the high-temperature semi-coke waste heat utilization heat exchanger of the present invention is as follows:
in the first step, cooling water enters the lower header 20 from the cooling water inlet 22, and the cooling water in the lower header 20 enters the upper header 10 from the first heat exchange pipe 30 and the second heat exchange pipe 33 from bottom to top.
And secondly, the high-temperature semi coke enters the blanking channel from the upper part of the upper header 10 and falls down along the blanking channel, at the moment, the high-temperature semi coke continuously exchanges heat with the first heat exchange tube 30 and the second heat exchange tube 33, cooling water is changed into water vapor after being heated, and the water vapor is discharged from the steam outlet 12 to other equipment for steam utilization, so that the recycling of the steam is completed.
And thirdly, continuously cooling the high-temperature semi coke, and then discharging the semi coke from a discharging channel to secondary cooling or directly discharging the semi coke.
The utility model discloses blue charcoal that high temperature blue charcoal waste heat utilization heat exchanger was handled does not need coal gas to dry, saves coal gas, reduces the waste of water, can not produce harmful substance moreover to furthest's the performance of guaranteeing blue charcoal.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a blue charcoal waste heat utilization heat exchanger of high temperature, its characterized in that, including upper header and lower header that correspond the setting from top to bottom, upper header with through a plurality of first heat exchange tube intercommunications between the lower header, it is adjacent be provided with first diaphragm type wall between the first heat exchange tube, first diaphragm type wall with first heat exchange tube encloses into and seals unloading passageway, be provided with at least one cooling water entry on the lower header, be provided with at least one steam outlet on the upper header.
2. The high-temperature semi-coke waste heat utilization heat exchanger as recited in claim 1, wherein the upper header and the lower header are both of an annular structure.
3. The high-temperature semi-coke waste heat utilization heat exchanger as claimed in claim 2, wherein a plurality of inner upper cross tubes are arranged on the upper header, both ends of each inner upper cross tube are communicated with the upper header, a plurality of inner lower cross tubes are arranged on the lower header, both ends of each inner lower cross tube are communicated with the lower header, the inner upper cross tubes and the inner lower cross tubes are correspondingly arranged up and down, the inner upper cross tubes are communicated with the inner lower cross tubes through second heat exchange tubes, second membrane walls are arranged between the adjacent second heat exchange tubes, and the second membrane walls and the second heat exchange tubes divide the blanking channel into a plurality of small blanking channels.
4. The high-temperature semi-coke waste heat utilization heat exchanger as recited in claim 1, wherein a sewage draining outlet is further provided on the lower header.
5. The high-temperature semi-coke waste heat utilization heat exchanger as claimed in claim 3, wherein the first heat exchange tube is provided with a first heat exchange fin, and the first heat exchange fin extends into the blanking channel.
6. The high-temperature semi-coke waste heat utilization heat exchanger as recited in claim 5, wherein the second heat exchange tube is provided with second heat exchange fins.
7. The high-temperature semi-coke waste heat utilization heat exchanger as recited in any one of claims 1 to 6, wherein an insulating layer is arranged on the outer surface of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123492.1U CN216010792U (en) | 2021-09-03 | 2021-09-03 | High-temperature semi-coke waste heat utilization heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123492.1U CN216010792U (en) | 2021-09-03 | 2021-09-03 | High-temperature semi-coke waste heat utilization heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216010792U true CN216010792U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122123492.1U Active CN216010792U (en) | 2021-09-03 | 2021-09-03 | High-temperature semi-coke waste heat utilization heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN216010792U (en) |
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2021
- 2021-09-03 CN CN202122123492.1U patent/CN216010792U/en active Active
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