CN202643628U - Heat exchange-type ascending tube and coke oven - Google Patents
Heat exchange-type ascending tube and coke oven Download PDFInfo
- Publication number
- CN202643628U CN202643628U CN 201220296353 CN201220296353U CN202643628U CN 202643628 U CN202643628 U CN 202643628U CN 201220296353 CN201220296353 CN 201220296353 CN 201220296353 U CN201220296353 U CN 201220296353U CN 202643628 U CN202643628 U CN 202643628U
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- tube
- heat exchange
- inner tube
- raw gas
- type ascending
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Abstract
The utility model provides a heat exchange-type ascending tube and a coke oven. The heat exchange-type ascending tube comprises an inner tube used for conveying raw coke oven gas; both ends of the inner tube are respectively communicated with a coke oven coking chamber and a crossover main. The heat exchange-type ascending tube also comprises an outer tube. The outer tube is arranged at the outer side of the inner tube; a cooling accommodating cavity is formed between the outer tube and the inner tube; the outer tube is provided with an inlet and an outlet which are communicated with the cooling accommodating cavity; a gas cooling medium used for recovering heat in the raw coke oven gas flows out of the cooling accommodating cavity from the outlet after entering the cooling accommodating cavity from the inlet; and the inner side of the inner tube is provided with a spiral guide rod arranged along the axial direction of the inner tube. According to the heat exchange-type ascending tube provided by the utility model, not only can the temperature of the raw coke oven gas be reduced, and part of heat in the raw coke oven gas be recovered but also the usage amount of ammonia water can be reduced, and the recovery cost of the raw coke oven gas is reduced.
Description
Technical field
The utility model belongs to the coking field, relates to the auxiliary facility of coke oven, is specifically related to a kind of heat exchange type ascending tube for pit kiln and includes the pit kiln of this heat exchange type ascending tube.
Background technology
In the coking field, reclaim raw gas and not only can reduce atmospheric pollution, and the beneficiating ingredients such as the benzene in the raw gas, naphthalene can be effectively utilized, thus save energy.
The way of recycling of common raw gas is as follows: temperature is 650～700 ℃ of raw gas after coke furnace carbonization chamber is discharged, and enters bridge tube through upcast and is cooled to about 90 ℃, and cooled raw gas enters effuser, at last by reclaiming between recovery vehicle.
Wherein, upcast only is used for connecting coke furnace carbonization chamber and bridge tube, the temperature that enters the raw gas of bridge tube still is 650～700 ℃, in order to improve the reclaimer operation condition of raw gas, reduce the heat radiation of upcast, prevent that graphite from accumulating too fast, at the inwall of upcast, the clay brick of lining take thickness as 50～60mm.In other words, existing upcast is to adopt the liner tile upcast.
Raw gas is before entering bridge tube, and its heat is not utilized, and this has caused the waste of the energy; And raw gas is to utilize the ammoniacal liquor of 0.15MPa to cool off in bridge tube, and the raw gas that temperature is higher has not only increased the usage quantity of ammoniacal liquor; And in the process of cooling raw gas, partial ammonia water is vaporized and mixes with raw gas, thereby has increased the volume of raw gas, and this will cause the increase of follow-up condensation air blast workshop section water consumption, and then increase energy consumption, increase the cost recovery of raw gas.
The utility model content
The technical problems to be solved in the utility model is exactly for the defects that exists in the prior art, a kind of heat exchange type ascending tube is provided, it not only can reduce the temperature of raw gas, and with the part heat recuperation in the raw gas, and can reduce the usage quantity of ammoniacal liquor, reduce the cost recovery of raw gas.
For solving the defects that exists in the prior art, the utility model also provides a kind of pit kiln, and it can effectively utilize the heat in the raw gas, reduces the waste of the energy, and can reduce the usage quantity of ammoniacal liquor, reduces the cost recovery of raw gas.
The technical scheme that adopts that solves the problems of the technologies described above provides a kind of heat exchange type ascending tube, and it comprises: for delivery of the inner tube of raw gas, the two ends of described inner tube are communicated with coke furnace carbonization chamber and bridge tube respectively; Also comprise:
Outer tube, it is arranged on the outside of described inner tube, and between described outer tube and described inner tube, form the cooling cavity volume, be provided with input aperture and the delivery port that is communicated with described cooling cavity volume at described outer tube, after described input aperture enters described cooling cavity volume, flow out described cooling cavity volume from described delivery port for the gaseous cooling medium that reclaims described raw gas heat; Be provided with the spiral stream guidance bar that axially arranges along it in the inboard of described inner tube.
Wherein, described outer tube sleeve is located at the outside of described inner tube, and described outer tube is coaxial with described inner tube.
Wherein, in described cooling cavity volume and the outside that is positioned at described inner pipe wall be provided with fin, in order to improve the heat exchange of described inner tube and described gaseous cooling medium.
Wherein, described gaseous cooling medium is air or rare gas element or useless flue gas.
Wherein, be provided with flange on the top of described inner tube, described spiral stream guidance bar is suspended on the described flange.
Wherein, described inner tube is pipe, and described outer tube is pipe.
Wherein, described input aperture and described delivery port are separately positioned on the two ends of described cooling cavity volume.
The utility model also provides a kind of pit kiln, comprise coke furnace carbonization chamber, upcast and bridge tube, one end of described upcast is communicated with described coke furnace carbonization chamber, the other end of described upcast is communicated with described bridge tube, the raw gas of discharging from described coke furnace carbonization chamber enters described bridge tube through described upcast, the described heat exchange type ascending tube that described upcast adopts the utility model to provide is provided.
The utlity model has following beneficial effect:
The heat exchange type ascending tube that the utility model provides, be provided with outer tube in the outside for delivery of the inner tube of raw gas, and cavity volume is cooled off in formation between described outer tube and described inner tube, in the cooling cavity volume, pass into gaseous cooling medium, by described gaseous cooling medium the raw gas that flows in inner tube is cooled off, thereby the temperature of raw gas is reduced.This heat exchange type ascending tube can reduce the temperature of raw gas, and with the part heat recovery and utilization in the raw gas, thereby has reduced the waste of the energy.With ammoniacal liquor cooling raw gas the time, the raw gas that temperature is lower can reduce because of vaporization sneaks into raw gas, not only can reduce the usage quantity of ammoniacal liquor, has reduced energy consumption, has reduced the cost of coking; And can reduce the industrial water consumption of condensation air blast workshop section.And, be provided with the spiral stream guidance bar that axially arranges along it in the inboard of described inner tube, can change the flow state of raw gas, thereby improve the heat transfer efficiency between raw gas and the inner tube.
Similarly, in the pit kiln that the utility model provides, the heat exchange type ascending tube that the upcast of coke furnace carbonization chamber and bridge tube adopts the utility model to provide be used for to be provided, be provided with outer tube in the outside for delivery of the inner tube of raw gas, and cavity volume is cooled off in formation between described outer tube and described inner tube, in the cooling cavity volume, pass into gaseous cooling medium, by described gaseous cooling medium the raw gas that flows in inner tube is cooled off, thereby the temperature of raw gas is reduced.This heat exchange type ascending tube can reduce the temperature of raw gas, and with the part heat recovery and utilization in the raw gas, thereby has reduced the waste of the energy.With ammoniacal liquor cooling raw gas the time, the raw gas that temperature is lower can reduce because of vaporization sneaks into raw gas, not only can reduce the usage quantity of ammoniacal liquor, has reduced energy consumption, has reduced the cost of coking; And can reduce the industrial water consumption of condensation air blast workshop section.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one heat exchange type ascending tube;
Fig. 2 is the part-structure schematic diagram of the utility model embodiment two pit kiln.
Embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing heat exchange type ascending tube and the pit kiln that the utility model provides is described in detail.
The heat exchange type ascending tube that embodiment one provides is for connecting coke furnace carbonization chamber and bridge tube, cooling off importing bridge tube from the raw gas that coke furnace carbonization chamber is discharged.Unlike the prior art be, raw gas is in the heat exchange type ascending tube process of flowing through, the part heat is recovered utilization.
Fig. 1 is the structural representation of the utility model embodiment one heat exchange type ascending tube.As shown in Figure 1, heat exchange type ascending tube comprises inner tube 1 and outer tube 2, and inner tube 1 is for delivery of raw gas, and the two ends of inner tube are equipped with for the flange 3 that connects coke furnace carbonization chamber and bridge tube.Coke furnace carbonization chamber is connected connection and also can be adopted other interconnecting piece except flange with bridge tube.
Outer tube 2 is set in the outside of inner tube 1, thereby between inner tube 1 and outer tube 2, form cooling cavity volume 4, be provided with input aperture 5 and the delivery port 6 that is communicated with cooling cavity volume 4 at outer tube 2, the gaseous cooling medium that is used for cooling and reclaims the raw gas heat 5 flows out the cooling cavity volumes from delivery port 6 after entering cooling cavity volume 4 from the input aperture.In the present embodiment, input aperture 5 arranges near the top of cooling cavity volume 4, and delivery port 6 arranges near the bottom of cooling cavity volume 4.Certainly, this does not represent that input aperture 5 and delivery port 6 can only be separately positioned near cooling cavity volume 4 tops and low side.Input aperture 5 and delivery port 6 also can be arranged on cooling cavity volume 4 other positions, as input aperture 5 and delivery port 6 are exchanged, are about to input aperture 5 near the bottom setting of cooling cavity volume 4, and delivery port 6 arranges near the top of cooling cavity volume 4.Where be arranged on cooling cavity volume 4 no matter be arranged on input aperture 5 and delivery port 6, as long as gaseous cooling medium can be imported and derives the purpose that cooling cavity volume 4 can reach the cooling raw gas.But, preferably, input aperture 5 and delivery port 6 are separately positioned near cooling cavity volume 4 two ends, can increase the heat transfer efficiency of gaseous cooling medium and inner tube 1.
During use, with heat transferred inner tube 1, gaseous cooling medium carries out heat exchange in the outside and the inner tube 1 of inner tube 1 to raw gas, thereby the heat in the raw gas is taken away from the inboard of inner tube 1.
Preferably, outer tube 2 is coaxial with inner tube 1, can make like this inner tube 1 around cooling gas evenly distribute, thereby improve cooling efficiency.
Be provided with fin 7 in the outside that is positioned at cooling cavity volume 4 and be positioned at the tube wall of inner tube 1, can improve heat exchanger effectiveness between inner tube 1 and the gaseous cooling medium by fin 7, thus the rate of recovery of heat in the raising raw gas.Fin 7 can be along the axis setting of inner tube 1, also can be vertically and the axis setting of inner tube 1.
Be provided with spiral stream guidance bar 8 in the inboard of inner tube 1, spiral stream guidance bar 8 is along the axial setting of inner tube 1, and spiral stream guidance bar 8 is suspended on the flange 3.Certainly, spiral stream guidance bar 8 also can adopt alternate manner to be fixed on the flange 3.Spiral stream guidance bar 8 can make raw gas rotate, and changes the flow state of raw gas, thereby improves the heat transfer efficiency between raw gas and the inner tube.
In an embodiment, gaseous cooling medium can adopt air or rare gas element or useless flue gas.The gaseous cooling medium that absorbs the raw gas heat can utilize its heating thermal oil or boiler after delivery port 6 is discharged, thus with heat recovery and utilization, and then reduce energy consumption, reduce and pollute.
The present embodiment inner tube 1 and outer tube 2 all adopt pipe.Certainly, inner tube 1 and outer tube 2 also can adopt the pipeline such as other shape such as square.No matter adopt the pipeline of which kind of shape, all can reach the purpose that reclaims the raw gas heat, therefore all belong to protection domain of the present utility model.But inner tube 1 and outer tube 2 adopt pipe, not only are convenient to processing but also intensity high.
Need to prove, although embodiment one is the outside that outer tube 2 is set in inner tube 1, yet the utility model is not limited to this.Outer tube 2 also can be around the circumferential part of inner tube 1, namely outer tube 2 not Perfect Ring around inner tube 1 circumferentially.This can reach the effect of cooling raw gas equally, therefore all belongs to protection domain of the present utility model.
Experiment shows, through the cooling of heat exchange type ascending tube, the temperature of raw gas can be reduced to 550～280 ℃.
The heat exchange type ascending tube that the present embodiment provides, be provided with outer tube in the outside for delivery of the inner tube of raw gas, and cavity volume is cooled off in formation between described outer tube and described inner tube, in the cooling cavity volume, pass into gaseous cooling medium, by described gaseous cooling medium the raw gas that flows in inner tube is cooled off, thereby the temperature of raw gas is reduced.This heat exchange type ascending tube can reduce the temperature of raw gas, and with the part heat recovery and utilization in the raw gas, thereby has reduced the waste of the energy.With ammoniacal liquor cooling raw gas the time, the raw gas that temperature is lower can reduce because of vaporization sneaks into raw gas, not only can reduce the usage quantity of ammoniacal liquor, has reduced energy consumption, has reduced the cost of coking; And can reduce the industrial water consumption of condensation air blast workshop section.In addition, in bridge tube, the lower raw gas volume I of temperature to be improving the transport efficiency of raw gas in bridge tube, thereby enhances productivity.
Embodiment two provides a kind of pit kiln, and Fig. 2 is the part-structure schematic diagram of the utility model embodiment two pit kiln.As shown in Figure 2, pit kiln comprises coke furnace carbonization chamber 21, upcast 22 and bridge tube 23, one end of upcast 22 is communicated with coke furnace carbonization chamber 21, and the other end of upcast 22 is communicated with bridge tube 23, and the raw gas of discharging from coke furnace carbonization chamber 21 enters bridge tube 23 through upcast 22.In embodiment two, upcast 22 adopts embodiment one described heat exchange type ascending tube, can reduce the temperature of raw gas by heat exchange type ascending tube, and with the part heat recovery and utilization in the raw gas.
In the pit kiln that embodiment two provides, the heat exchange type ascending tube that the upcast of coke furnace carbonization chamber and bridge tube adopts the utility model to provide be used for to be provided, be provided with outer tube in the outside for delivery of the inner tube of raw gas, and cavity volume is cooled off in formation between described outer tube and described inner tube, in the cooling cavity volume, pass into gaseous cooling medium, by described gaseous cooling medium the raw gas that flows in inner tube is cooled off, thereby the temperature of raw gas is reduced.This heat exchange type ascending tube can reduce the temperature of raw gas, and with the part heat recovery and utilization in the raw gas, thereby has reduced the waste of the energy.With ammoniacal liquor cooling raw gas the time, the raw gas that temperature is lower can reduce because of vaporization sneaks into raw gas, not only can reduce the usage quantity of ammoniacal liquor, has reduced energy consumption, has reduced the cost of coking; And can reduce the industrial water consumption of condensation air blast workshop section.In addition, in bridge tube, the lower raw gas volume I of temperature to be improving the transport efficiency of raw gas in bridge tube, thereby enhances productivity.
Be understandable that, above embodiment only is the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited to this.For those skilled in the art, in the situation that do not break away from principle of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.
Claims (8)
1. heat exchange type ascending tube, comprising: for delivery of the inner tube of raw gas, the two ends of described inner tube are communicated with coke furnace carbonization chamber and bridge tube respectively;
It is characterized in that, also comprise:
Outer tube, it is arranged on the outside of described inner tube, and between described outer tube and described inner tube, form the cooling cavity volume, be provided with input aperture and the delivery port that is communicated with described cooling cavity volume at described outer tube, after described input aperture enters described cooling cavity volume, flow out described cooling cavity volume from described delivery port for the gaseous cooling medium that reclaims described raw gas heat;
Be provided with the spiral stream guidance bar that axially arranges along it in the inboard of described inner tube.
2. heat exchange type ascending tube according to claim 1 is characterized in that, described outer tube sleeve is located at the outside of described inner tube, and described outer tube is coaxial with described inner tube.
3. heat exchange type ascending tube according to claim 1 is characterized in that, in described cooling cavity volume and the outside that is positioned at described inner pipe wall be provided with fin, in order to improve the heat exchange of described inner tube and described gaseous cooling medium.
4. heat exchange type ascending tube according to claim 1 is characterized in that, described gaseous cooling medium is air or rare gas element or useless flue gas.
5. heat exchange type ascending tube according to claim 1 is characterized in that, is provided with flange on the top of described inner tube, and described spiral stream guidance bar is suspended on the described flange.
6. heat exchange type ascending tube according to claim 1 is characterized in that, described inner tube is pipe, and described outer tube is pipe.
7. heat exchange type ascending tube according to claim 1 is characterized in that, described input aperture and described delivery port are separately positioned on the two ends of described cooling cavity volume.
8. pit kiln, comprise coke furnace carbonization chamber, upcast and bridge tube, one end of described upcast is communicated with described coke furnace carbonization chamber, the other end of described upcast is communicated with described bridge tube, the raw gas of discharging from described coke furnace carbonization chamber enters described bridge tube through described upcast, it is characterized in that, described upcast adopts the described heat exchange type ascending tube of claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296353 CN202643628U (en) | 2012-06-19 | 2012-06-19 | Heat exchange-type ascending tube and coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296353 CN202643628U (en) | 2012-06-19 | 2012-06-19 | Heat exchange-type ascending tube and coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643628U true CN202643628U (en) | 2013-01-02 |
Family
ID=47412764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220296353 Withdrawn - After Issue CN202643628U (en) | 2012-06-19 | 2012-06-19 | Heat exchange-type ascending tube and coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643628U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509564A (en) * | 2012-06-19 | 2014-01-15 | 北京华泰焦化工程技术有限公司 | Heat-exchange type ascending tube and coke oven |
| CN106119570A (en) * | 2016-08-08 | 2016-11-16 | 赤峰富邦铜业有限责任公司 | A kind of device suppressing metallurgy of copper smelting furnace to produce coking and using method |
| CN106679461A (en) * | 2016-12-09 | 2017-05-17 | 广西北海浩邦新能源科技有限公司 | Pipeline for dry distillation gas heat recovery |
-
2012
- 2012-06-19 CN CN 201220296353 patent/CN202643628U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509564A (en) * | 2012-06-19 | 2014-01-15 | 北京华泰焦化工程技术有限公司 | Heat-exchange type ascending tube and coke oven |
| CN103509564B (en) * | 2012-06-19 | 2016-01-13 | 北京华泰焦化工程技术有限公司 | A kind of heat exchange type ascending tube and coke oven |
| CN106119570A (en) * | 2016-08-08 | 2016-11-16 | 赤峰富邦铜业有限责任公司 | A kind of device suppressing metallurgy of copper smelting furnace to produce coking and using method |
| CN106119570B (en) * | 2016-08-08 | 2019-03-12 | 赤峰富邦铜业有限责任公司 | A kind of device and application method for inhibiting metallurgy of copper smelting furnace to generate coking |
| CN106679461A (en) * | 2016-12-09 | 2017-05-17 | 广西北海浩邦新能源科技有限公司 | Pipeline for dry distillation gas heat recovery |
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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: 20130102 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |