CN201909572U - Device for recovering waste heat from process gas at furnace top of cooking and carbonizing room and heat extracting component - Google Patents
Device for recovering waste heat from process gas at furnace top of cooking and carbonizing room and heat extracting component Download PDFInfo
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- CN201909572U CN201909572U CN 201020690231 CN201020690231U CN201909572U CN 201909572 U CN201909572 U CN 201909572U CN 201020690231 CN201020690231 CN 201020690231 CN 201020690231 U CN201020690231 U CN 201020690231U CN 201909572 U CN201909572 U CN 201909572U
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- heat
- pipe
- process gas
- annular
- wing screen
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- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a device for recovering waste heat from process gas at the furnace top of a cooking and carbonizing room and a heat extracting component. The heat extracting component comprises a plurality of heat pipes filled with work liquid, each heat pipe is annularly arranged, and each heat pipe is connected with one another by an annular wing screen to form an annular and peripheral pipe wing screen; the device for recovering the waste heat comprises the annular and peripheral pipe wing screen which is arranged at the furnace top of the cooking and carbonizing room and a steam drum, a process gas inlet and a process gas outlet are respectively arranged at the lower end and the upper end of the annular and peripheral pipe wing screen, and the process gas inlet is in butt joint with the process gas outlet at the furnace top of the cooking and carbonizing room; and the upper end and the lower end of each heat pipe of the annular and peripheral pipe wing screen are communicated with each other by an upper collecting coil pipe and a lower collecting coil pipe, and the upper collecting coil pipe and the lower collecting coil pipe are respectively connected with a heat discharging pipe arranged in the steam drum to form a sealed circulation loop of the work liquid in each heat pipe of the annular and peripheral pipe wing screen. The utility model can be used for effectively recovering the waste heat of a mass of the process gas which is high in temperature and enriched with the recyclable material discharged from the top of a cooking furnace through the top of the carbonizing room, and the temperature is reduced at more than 450 DEG C coking point from 800 DEG C, so that the utility model is safe, environment-friendly, energy-saving, and good for greatly reducing the running cost and the running expenses.
Description
Technical field
The utility model relates to a kind of heat exchange elements, relates in particular to a kind of heat-obtaining element that includes heat pipe.
The utility model also relates to a kind of waste-heat recovery device that is used to reclaim coking carbonization chamber furnace roof process gas waste heat that utilizes above-mentioned heat-obtaining element to be formed.
Background technology
Traditional technology is adopted in present most of coking, the high-temperature technology gas that pyrolysis produces in its process is discharged from each carbonization chamber top, main component is a raw coke oven gas, and contain callable multiple organic media composition, usually adopt the cooling of spray ammonia to reach the process gas cooling, enter subsequent processing then, the disclosed a kind of transverse pipe initial cooler that coke-stove gas is cooled off of 200710051923.X for example, it comprises the primary cooler housing, be fixed with epimere spray line and hypomere spray line in the described housing, disconnected tower tray is set above described hypomere spray line, the condensate liquid of control primary cooler epimere and flushing liquor are directly drawn without the hypomere of primary cooler, avoid flushing liquor and condensate stream to absorb the cold of hypomere heat exchanger tube through the primary cooler hypomere, alleviate the thermic load of primary cooler low-temperature zone, and reduce the consumption of water at low temperature simultaneously, to reduce cost consumption, improve the heat exchange efficiency of heat exchanger tube to coal gas.But the coke-stove gas heat is not still effectively reclaimed and is utilized, and still needs to consume simultaneously a large amount of cooling mediums.
For the bed rearrangement coke oven, carbonization chamber quantity is generally tens or up to a hundred, and more than the quantity, heat dissipates big, obviously, reclaims this part heat and helps energy-conserving and environment-protective.But as mentioned above, existing heat-obtaining element and heat-obtaining device all can not be applicable to the waste heat recovery of coking carbonization chamber stove item process gas easily and effectively.
Summary of the invention
First technical problem that the utility model solved is, provides a kind of applicable to the process gas waste heat recovery of coking carbonization chamber furnace roof and heat-obtaining efficient height, heat-obtaining element simple in structure.
Heat-obtaining element described in the utility model comprises some heat pipes, and described heat pipe circular array is connected by annular wing screen between each heat pipe, forms annular, peripheral pipe wing screen.
Annular, peripheral pipe wing screen described in the utility model can have following three kinds of implementations:
At the outer tube diameter d≤25mm of described heat pipe, and the center arc length of adjacent two heat pipes can adopt circumferential endless tube wing screen when being less than or equal to 2d, that is: described annular wing screen is connected with each heat pipe on the formed toroid of each heat pipe tube hub.Adopt circumferential endless tube wing screen structure, can make annular, peripheral pipe wing screen have bigger heat convection face and radiant heat transfer face, thereby its heat transfer efficiency is further improved.
When the outer tube diameter d of described heat pipe＞25mm, and when the center arc length of adjacent two heat pipes is less than or equal to 2d, for reducing dust stratification, guarantee simultaneously enough heat convection faces and radiant heat transfer face again, can adopt circumferential Pipe Cutting wing screen, that is: described annular wing screen is circumferentially tangent with each heat pipe, and the inner peripheral surface of annular wing screen overlaps with the formed inner peripheral surface of each heat pipe.
Certainly, in order to reduce the dust stratification space better, be convenient to the dust stratification cleaning, described annular, peripheral pipe wing screen also can adopt the circumferential tubes wing screen of inner core, that is: described annular wing screen is connected with each heat pipe on its outer circumference surface.
The utility model adopts heat-pipe elements and annular wing screen to be combined to form the heat-obtaining element, and it is circumferential at first can to make the heat-obtaining element be laid in coking carbonization chamber stove item easily, fully saving equipment laying space; The more important thing is that can make the heat-obtaining element carry out complex heat transfer with radiation, convection current, heat conduction and phase-change heat transfer mode simultaneously, heat transfer efficiency increases substantially.
Another technical problem to be solved in the utility model is, in the coking industry technical process, a large amount of high temperature that the coking furnace roof is discharged from the carbonization chamber top, be rich in the process gas of Recyclable, utilize above-mentioned heat-obtaining element, a kind of coking carbonization chamber furnace roof process gas waste-heat recovery device of realizing the high efficiency cooling and reclaiming the heat energy of its dissipation is provided, reaches energy-conservation purpose.
Coking carbonization chamber furnace roof process gas waste-heat recovery device described in the utility model comprises the heat-obtaining element that is arranged on coking carbonization chamber stove item, comprises shell body, process gas import and export, heat-obtaining element and drum; Described heat-obtaining element is an annular, peripheral pipe wing screen, and the process gas import and export is arranged at the lower end and the upper end of this annular, peripheral pipe wing screen respectively, and wherein, the outlet of the process gas of process gas import and coking carbonization chamber furnace roof portion connects; The upper and lower end of each heat pipe of annular, peripheral pipe wing screen is connected by the upper and lower coil pipe that compiles respectively, the upper and lower coil pipe that compiles is connected with heat release pipe in placing drum through pipeline respectively, the closed circulation loop of working solution in each heat pipe of looping circumferential tubes wing screen.
In addition, described process gas import has identical size and channel cross-section with the process gas outlet of coking carbonization chamber furnace roof portion, is beneficial to keep the former flow velocity of process gas, alleviates dust stratification and coking.
Simultaneously, between the outer peripheral face of annular, peripheral pipe wing screen and shell body, heat insulation recuperation layer is set, can slows down the thermal shock of single unit system.
The utility model adopts annular, peripheral pipe wing screen as core heat-obtaining element, and collection radiation, convection current and heat-conducting mode carry out complex heat transfer, absorption technique gas heat, and by further phase-change heat-exchange, heat is taken out, reach the purpose of process gas cooling.
The utility model can effectively solve heat recovery and the cooling problem that coke oven is risen warm process gas, the about 800 ℃ process gas heat that produces in this production process taken out and carry out recuperation of heat, make it temperature and drop to more than the coking point, after about 450 ℃, enter subsequent processing.Compared with prior art, the utlity model has following advantage:
1, adopts novel heat-obtaining element annular circumferential tubes wing screen, heat-obtaining efficient height;
2, the reduction of process gas temperature can be controlled in ~ 450 ℃, avoided the coking of coal tar, reduce the maintenance cost of equipment;
3, compact equipment, tube panel is arranged and arrangement in the device, has improved the device security reliability, and has helped in time removing dust stratification, coking;
4, the heat that reclaims can attach in the generation, low-pressure steam, can be recycled in production process, improve comprehensive utilization of energy efficient.
Description of drawings
Fig. 1 is annular, peripheral pipe wing screen embodiment 1 structural representation described in the utility model;
Fig. 2 is annular, peripheral pipe wing screen embodiment 2 structural representations described in the utility model;
Fig. 3 is annular, peripheral pipe wing screen embodiment 3 structural representations described in the utility model;
Fig. 4 is a coking carbonization chamber furnace roof process gas waste-heat recovery device general structure schematic diagram described in the utility model;
Fig. 5 is that A-A among this Fig. 4 is to the semi-section schematic diagram.
Among the figure:
Compile the heat insulation recuperation layer 6-of coil pipe 3-working solution 4-annular, peripheral pipe wing screen 5-shell under the 1-process gas import 2-
Compile coil pipe 8-upper connecting tube 9-vapour conduit 10-heat release pipe 11-drum 12-process gas outlet 13-fluid catheter 14-lower linking tube 41-heat pipe 42-annular wing screen on the 7-.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As Fig. 1, Fig. 2 and shown in Figure 3, annular, peripheral pipe wing screen described in the utility model comprises some heat pipes 41, and described heat pipe 41 circular array are connected by annular wing screen 42 between each heat pipe 41, form annular, peripheral pipe wing screen.It can have three kinds of versions, is specially:
Embodiment 1
As shown in Figure 1, at the outer tube diameter d≤25mm of described heat pipe 41, and the center arc length of adjacent two heat pipes adopts circumferential endless tube wing screen when being less than or equal to 2d, that is: described annular wing screen 42 is connected with each heat pipe 41 on the formed toroid of the tube hub of each heat pipe 41.
Embodiment 2
As shown in Figure 2, when the outer tube diameter d of described heat pipe 41＞25mm, and when the center arc length of adjacent two heat pipes is less than or equal to 2d, adopt circumferential Pipe Cutting wing screen, that is: described annular wing screen 42 is circumferentially tangent with each heat pipe 41, and the inner peripheral surface of annular wing screen 42 overlaps with each heat pipe 41 formed inner peripheral surface.
Embodiment 3
As shown in Figure 3, described annular, peripheral pipe wing screen adopts the circumferential tubes wing screen that inner core is arranged, that is: described annular wing screen 42 is connected with each heat pipe 41 on its outer circumference surface.Annular wing screen 42 becomes the inner core of circumferential tubes wing screen.
As Fig. 4, shown in Figure 5, coking carbonization chamber furnace roof process gas waste-heat recovery device described in the utility model, comprise annular, peripheral pipe wing screen 4, on compile coil pipe 7, compile coil pipe 2, heat release pipe 10 and drum 11 down, the upper and lower port of annular, peripheral pipe wing screen 4 is provided with process gas outlet 12 and process gas import 1 respectively, and process gas import 1 is connected with coking carbonization chamber furnace roof portion; Wherein, the lower end of each heat pipe of annular, peripheral pipe wing screen 4 by under compile coil pipe 2 and be connected, the upper end of each heat pipe by on compile coil pipe 7 and be connected, on compile coil pipe 7 by upper connecting tube 8 through vapour conduit 9, be connected with the heat release pipe 10 in placing drum 11, heat release pipe 10 order is through fluid catheter 13, lower linking tube 14 and compile coil pipe 2 down and link to each other, and looping circumferential tubes wing shields the closed circulation loop of working solution 3 in each heat pipe of 4.
As Fig. 4, shown in Figure 5, between the outer peripheral face of annular, peripheral pipe wing screen 4 and shell 6, heat insulation recuperation layer 5 is set, heat insulation recuperation layer 5 can adopt grid gitter brick and insulation material, to slow down thermal shock.
As shown in Figure 4, charge into a certain amount of working solution 3 in the heat pipe of annular, peripheral pipe wing screen 4, working solution require for boiling point at 70 ~ 220 ℃, the latent heat of vaporization＞2000kJ/kg.Working solution 3 produces phase transformation by absorbing heat, and the heat release pipe 10 that arrives in the drums 11 through vapour conduit 9 condenses at this and to emit heat, and condensate liquid returns by fluid catheter 13.
During actual the use, process gas import 1 in the coking carbonization chamber furnace roof process gas waste-heat recovery device described in the utility model is docked with the carbonization chamber top, the process gas that coal carbonization produced in the process of coking enters this waste-heat recovery device through process gas import 1, carry out radiation with its annular, peripheral pipe wing screen 4, heat convection and heat conduction, but working solution 3 with a certain amount of phase transformation that charges in the heat pipe 41 of annular, peripheral pipe wing screen 4, be in operation and evaporate after it absorbs heat, through on compile and enter upper connecting tube 8 after coil pipe 7 compiles, the vapour conduit 9 that links to each other through upper connecting tube 8, enter the heat release pipe 10 that places in the drum 11 and carry out condensation heat, working solution 3 is got back to lower linking tube 14 through fluid catheters 13 after the condensation, and enters down and compile coil pipe 2 circular flows.The heat that is taken out produces steam by drum 11, and simultaneously, the temperature of process gas can be reduced to about 450 ℃ from 800 ℃, enters the subsequent technique device by process gas outlet 12.
Claims (7)
1. a heat-obtaining element comprises the some heat pipes that are filled with working solution, it is characterized in that: described heat pipe circular array, be connected by annular wing screen between each heat pipe, and form annular, peripheral pipe wing screen.
2. heat-obtaining element according to claim 1 is characterized in that: described annular, peripheral pipe wing screen is circumferential endless tube wing screen, that is: described annular wing screen is connected with each heat pipe on the formed toroid of each heat pipe tube hub.
3. heat-obtaining element according to claim 1 is characterized in that: described annular, peripheral pipe wing screen is circumferential Pipe Cutting wing screen, that is: described annular wing screen is circumferentially tangent with each heat pipe, and the inner peripheral surface of annular wing screen overlaps with the formed inner peripheral surface of each heat pipe.
4. heat-obtaining element according to claim 1 is characterized in that: described annular, peripheral pipe wing screen is for there being the circumferential tubes wing screen of inner core, that is: described annular wing screen is connected with each heat pipe on its outer circumference surface, and each heat pipe forms the inner core of circumferential tubes wing screen.
5. a coking carbonization chamber furnace roof process gas waste-heat recovery device comprises shell body, the process gas import and export, and heat-obtaining element and drum is characterized in that: described heat-obtaining element is claim 1,2,3 or 4 described annular, peripheral pipe wing screens; The process gas import and export is arranged at the lower end and the upper end of this annular, peripheral pipe wing screen respectively, and wherein, the outlet of the process gas of process gas import and coking carbonization chamber furnace roof portion connects; The upper and lower end of each heat pipe of annular, peripheral pipe wing screen is connected by the upper and lower coil pipe that compiles respectively, the upper and lower coil pipe that compiles is connected with heat release pipe in placing drum through pipeline respectively, the closed circulation loop of working solution in each heat pipe of looping circumferential tubes wing screen.
6. coking carbonization chamber furnace roof process gas waste-heat recovery device according to claim 5 is characterized in that: described process gas import has identical size and channel cross-section with the process gas outlet of coking carbonization chamber furnace roof portion.
7. coking carbonization chamber furnace roof process gas waste-heat recovery device according to claim 5 is characterized in that: between the outer peripheral face of annular, peripheral pipe wing screen and shell body heat insulation recuperation layer is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690231 CN201909572U (en) | 2010-12-30 | 2010-12-30 | Device for recovering waste heat from process gas at furnace top of cooking and carbonizing room and heat extracting component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690231 CN201909572U (en) | 2010-12-30 | 2010-12-30 | Device for recovering waste heat from process gas at furnace top of cooking and carbonizing room and heat extracting component |
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| Publication Number | Publication Date |
|---|---|
| CN201909572U true CN201909572U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020690231 Expired - Lifetime CN201909572U (en) | 2010-12-30 | 2010-12-30 | Device for recovering waste heat from process gas at furnace top of cooking and carbonizing room and heat extracting component |
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| Country | Link |
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| CN (1) | CN201909572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080940A (en) * | 2010-12-30 | 2011-06-01 | 南京圣诺热管有限公司 | Process gas afterheat recovery device of coking carbonization chamber furnace top and heat-removing element |
-
2010
- 2010-12-30 CN CN 201020690231 patent/CN201909572U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080940A (en) * | 2010-12-30 | 2011-06-01 | 南京圣诺热管有限公司 | Process gas afterheat recovery device of coking carbonization chamber furnace top and heat-removing element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110727 Effective date of abandoning: 20120704 |