CN204138621U - With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus - Google Patents
With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus Download PDFInfo
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- CN204138621U CN204138621U CN201420445124.6U CN201420445124U CN204138621U CN 204138621 U CN204138621 U CN 204138621U CN 201420445124 U CN201420445124 U CN 201420445124U CN 204138621 U CN204138621 U CN 204138621U
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Abstract
The utility model relates to gas purification field, be specially a kind of with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus.A kind of with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, comprise debenzolizing tower (11) and wash benzene tower (12), it is characterized in that: also comprise interchanger (2), well heater (3) and water cooler (4), debenzolizing tower (11), interchanger (2), well heater (3), water cooler (4) with wash benzene tower (12) and be connected successively by oil pipe.The utility model heat utilization rate is high, and temperature control stability is high, and save land used, the feature of environmental protection is good.
Description
Technical field
The utility model relates to gas purification field, be specially a kind of with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus.
Background technology
At present, the ammonia distillation process of most of coke-oven plant adopts steaming process or tube oven method technique, sulphur ammonium gas preheater in flow process adopts input steam with heating gas, this method has following defect: 1. after utilizing steam heating, vapor condensation produces waste water, increase the outer discharge capacity of waste water and processing costs, environment protecting is poor; 2. do not make full use of the temperature difference between hot poor oil and gas, greatly, energy-saving effect is poor for recirculated water and water at low temperature consumption; 3. steam heating is the latent heat utilizing phase transformation, can not be too high relative to the temperature head of heated medium, and temperature Control constraints system, therefore adopts steam heating, and temperature control stability is poor; 4. ammonia still process adopts the heating of tube oven method technique, system complex, and floor space is large, invests high, perishable, poor stability.
Utility model content
In order to overcome the defect of prior art, providing that a kind of heat utilization rate is high, temperature control stability is high, saving land used, waste heat utilization equipment that the feature of environmental protection is good, the utility model discloses a kind of with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus.
The utility model reaches goal of the invention by following technical solution:
With de-benzene heat oil-poor for thermal source without a steam coal air purifying apparatus, comprise debenzolizing tower and wash benzene tower, debenzolizing tower and washing between benzene tower is connected by oil pipe, it is characterized in that: also comprise interchanger, well heater and water cooler,
The oil outlet end of debenzolizing tower connects the first oil inlet end of interchanger by oil pipe, the oil outlet end washing benzene tower connects the second oil inlet end of interchanger by oil pipe, first oil outlet end of interchanger connects the oil inlet end of well heater by oil pipe, the second oil outlet end of interchanger connects the oil inlet end washing benzene tower by oil pipe;
The oil outlet end of well heater connects the oil inlet end of water cooler by oil pipe, medium to be heated is located on the oil pipe of connection oil inlet end and oil outlet end in well heater, and the oil outlet end of water cooler connects the oil inlet end washing benzene tower by oil pipe.
Described with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, it is characterized in that: also comprise dashpot and oil pump,
Well heater and water cooler all have two at least, and each water cooler is sequentially connected in series by oil pipe and forms multistage cooling module;
First oil outlet end of interchanger connects the oil inlet end of each well heater respectively by oil pipe, the oil outlet end of each well heater all connects the oil inlet end of dashpot by oil pipe, the oil outlet end of dashpot connects the oil inlet end of multistage cooling module by oil pipe, the oil outlet end of multistage cooling module connects the oil inlet end washing benzene tower by oil pipe;
Connect debenzolizing tower oil outlet end with on the oil pipe of interchanger oil inlet end, the oil pipe that is connected dashpot oil outlet end and multistage cooling module oil inlet end is all in series with oil pump.
Described with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, it is characterized in that: each well heater (3) be provided with in ammonia still (13), ammonium sulfate device and coke-oven gas producer any one, to make any one in the gas preheater and the saturated preheater of spray-type of the reboiler of ammonia still, ammonium sulfate device of well heater (3).
When the utility model uses, implement successively as follows:
One-level heat exchange: oil-poor first oil inlet end through oil outlet end input heat exchanger of heat of debenzolizing tower, wash second oil inlet end of washing oil rich oil through oil outlet end input heat exchanger of benzene tower, the oil-poor and washing oil rich oil generation heat exchange of heat in interchanger is also cooled to 80 DEG C ~ 200 DEG C;
Secondary heat exchange: the heat exported from interchanger first oil outlet end is oil-poor through oil inlet end input well heater, oil-poor and the medium generation heat exchange to be heated of heat in well heater, in heat exchanging process, the oil-poor oil temperature of heat declines 20 DEG C, and medium to be heated is by the oil-poor heating of heat simultaneously;
Three grades of heat exchanges: the heat exported from dashpot oil outlet end is oil-poor is cooled to less than 30 DEG C through oil inlet end input water cooler, the heat after repeatedly heat exchange cooling exported from water cooler oil outlet end is oil-poor and all wash benzene tower through oil inlet end input from the washing oil rich oil heated up after heat exchange that interchanger second oil outlet end exports.
During use, buffer step can also be interted between secondary heat exchange steps and three grades of heat exchange steps,
When secondary heat exchange steps, each well heater is all as any one in the reboiler of ammonia still, the gas preheater of ammonium sulfate device and the saturated preheater of spray-type; Well heater heats air in ammonia still and thinks that ammonia still provides heat when the reboiler as ammonia still, during heating, heat is oil-poor carries out countercurrent flow with the waste water at the bottom of ammonia still tower, reach the effect replacing steam, the adjustment of ammonia still process effect at the bottom of tower realizes by regulating washing oil flow and temperature; Well heater with the coal gas in hot oil-poor replacement steam heating ammonium sulfate device, adopts reverse-flow or downflow system when the gas preheater as ammonium sulfate device during heating, the adjustment of gas preheating temperature realizes by regulating washing oil flow and temperature; Well heater heats coke-oven gas when the well heater as the saturated preheater of spray-type;
During buffer step, the heat exported from well heater oil outlet end is oil-poor through oil inlet end input dashpot buffering, completes the oil-poor oil inlet end from dashpot oil outlet end input water cooler of buffer step after heat.
The utility model is applied to the hot spots of coke-oven plant's jet system, can realize the heating without steam, reduces the fuel cost producing steam simultaneously.For a Ge200Wan Dun coke-oven plant jet system, following benefit can be produced:
1. energy-conservation: per hourly to save steam consumption 15 tons ~ 20 tons;
2. reduce discharging environmental protection: do not produce vapor condensation waste water, reduce the generation of coking chemical waste water and outer row, minimizing discharge of wastewater per hour 15 tons ~ 20 tons;
3. synergy: reduce steam and fuel cost;
4. improve device reliability: the hot carrying agent of hot oil-poor genus liquid phase heat-conduction oil class, stable in properties, hot oil-poor liquid phase heating is the sensible heat utilizing temperature head, and during heating, the oil-poor temperature of heat generally exceedes heated medium more than 20 DEG C, heat delivery and temperature are transmitted relatively stable, are conducive to temperature and control;
5. system simplification: to utilize in same system a medium heat carrier waste heat to be used as the thermal source of other reboiler or well heater, no longer newly-increased thermal source in external source or device, technique is simple, reduced investment.
The utility model make use of a medium heat carrier waste heat in same system, is used as the thermal source of other device as reboiler or well heater, no longer from outside input thermal source or in device newly-increased thermal source.Specifically, the utility model adopts de-benzene heat oil-poor as heat sources such as ammonia still process sulphur ammoniums, a kind of without steam-heated novel gas purification process, the utility model make use of oil-poor the contained heat of heat of crude benzol workshop section in same apparatus system, heat is made oil-poorly after poor oil-rich heat exchanger, to release heat, this heat delivers to the primary heater unit such as ammonia still process reboiler and sulphur ammonium gas preheater in order to alternative steam, achieves the object without steam, energy-saving and emission-reduction.
The beneficial effects of the utility model are: heat utilization rate is high, and temperature control stability is high, and save land used, the feature of environmental protection is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further illustrated below by way of specific embodiment.
Embodiment 1
With de-benzene heat oil-poor for thermal source without a steam coal air purifying apparatus, comprise debenzolizing tower 11, wash benzene tower 12, interchanger 2, well heater 3, water cooler 4, dashpot 5 and oil pump 6, as shown in Figure 1, concrete structure is:
The oil outlet end of debenzolizing tower 11 connects the first oil inlet end of interchanger 2 by oil pipe, the oil outlet end washing benzene tower 12 connects the second oil inlet end of interchanger 2 by oil pipe, first oil outlet end of interchanger 2 connects the oil inlet end of well heater 3 by oil pipe, the second oil outlet end of interchanger 2 connects the oil inlet end washing benzene tower 12 by oil pipe;
The oil outlet end of well heater 3 connects the oil inlet end of water cooler 4 by oil pipe, medium to be heated is located on the oil pipe of connection oil inlet end and oil outlet end in well heater 3, and the oil outlet end of water cooler 4 connects the oil inlet end washing benzene tower 12 by oil pipe;
In the present embodiment, well heater 3 has three, each well heater 3 is respectively equipped with in ammonia still 13, ammonium sulfate device and coke-oven gas producer any one, to make well heater 3 as the gas preheater of the reboiler of ammonia still 13, ammonium sulfate device and the saturated preheater of spray-type; Water cooler 4 has two, and each water cooler 4 is sequentially connected in series by oil pipe and forms multistage cooling module 40;
First oil outlet end of interchanger 2 connects the oil inlet end of each well heater 3 respectively by oil pipe, the oil outlet end of each well heater 3 all connects the oil inlet end of dashpot 5 by oil pipe, the oil outlet end of dashpot 5 connects the oil inlet end of multistage cooling module 40 by oil pipe, the oil outlet end of multistage cooling module 40 connects the oil inlet end washing benzene tower 12 by oil pipe;
Oil pump 6 is in series with in the appropriate location of oil pipe, as: connect debenzolizing tower 11 oil outlet end with on the oil pipe of interchanger 2 oil inlet end, the oil pipe that is connected dashpot 5 oil outlet end and multistage cooling module 40 oil inlet end is all in series with oil pump 6.
When the present embodiment uses, implement successively as follows:
One-level heat exchange: oil-poor first oil inlet end through oil outlet end input heat exchanger 2 of heat of debenzolizing tower 11, wash second oil inlet end of washing oil rich oil through oil outlet end input heat exchanger 2 of benzene tower 12, the oil-poor and washing oil rich oil generation heat exchange of heat in interchanger 2 is also cooled to 80 DEG C ~ 200 DEG C;
Secondary heat exchange: input each well heater 3 through oil inlet end from the heat of interchanger 2 first oil outlet end output is oil-poor, oil-poor and the medium generation heat exchange to be heated of heat in each well heater 3, in heat exchanging process, the oil-poor oil temperature of heat declines 20 DEG C, and medium to be heated is by the oil-poor heating of heat simultaneously;
Well heater 2 heats air in ammonia still 13 and thinks that ammonia still 13 provides heat when the reboiler as ammonia still 13, during heating, heat is oil-poor carries out countercurrent flow with the waste water at the bottom of ammonia still 13 tower, reach the effect replacing steam, the adjustment of ammonia still process effect at the bottom of tower realizes by regulating washing oil flow and temperature; Well heater 3 with the coal gas in hot oil-poor replacement steam heating ammonium sulfate device, adopts reverse-flow or downflow system when the gas preheater as ammonium sulfate device during heating, the adjustment of gas preheating temperature realizes by regulating washing oil flow and temperature; Well heater 3 heats coke-oven gas when the well heater 3 as the saturated preheater of spray-type;
Buffering: cushion through oil inlet end input dashpot 5 from the heat of well heater 3 oil outlet end output is oil-poor, dashpot 5 is set and can reduces oily pump lift, reduce the design pressure of interchanger 2; After buffering, make material to stablize conveying;
Three grades of heat exchanges: the heat exported from dashpot 5 oil outlet end is oil-poor to be inputted multistage cooling module 40 through oil inlet end and be cooled to less than 30 DEG C, the heat after repeatedly heat exchange cooling exported from multistage cooling module 40 oil outlet end is oil-poor and all wash benzene tower 12 through oil inlet end input from the washing oil rich oil heated up after heat exchange that interchanger 2 second oil outlet end exports.
The present embodiment make use of a medium heat carrier waste heat in same system, is used as the thermal source of other device as reboiler or well heater, no longer from outside input thermal source or in device newly-increased thermal source.Specifically, the present embodiment adopts de-benzene heat oil-poor as heat sources such as ammonia still process sulphur ammoniums, a kind of without steam-heated novel gas purification process, the utility model make use of oil-poor the contained heat of heat of crude benzol workshop section in same apparatus system, heat is made oil-poorly after poor oil-rich heat exchanger, to release heat, this heat delivers to the primary heater unit such as ammonia still process reboiler and sulphur ammonium gas preheater in order to alternative steam, achieves the object without steam, energy-saving and emission-reduction.
Claims (3)
1. one kind with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, comprise debenzolizing tower (11) and wash benzene tower (12), debenzolizing tower (11) and washing between benzene tower (12) is connected by oil pipe, it is characterized in that: also comprise interchanger (2), well heater (3) and water cooler (4)
The oil outlet end of debenzolizing tower (11) connects the first oil inlet end of interchanger (2) by oil pipe, the oil outlet end washing benzene tower (12) connects the second oil inlet end of interchanger (2) by oil pipe, first oil outlet end of interchanger (2) connects the oil inlet end of well heater (3) by oil pipe, the second oil outlet end of interchanger (2) connects the oil inlet end washing benzene tower (12) by oil pipe;
The oil outlet end of well heater (3) connects the oil inlet end of water cooler (4) by oil pipe, medium to be heated is located on the oil pipe of connection oil inlet end and oil outlet end in well heater (3), and the oil outlet end of water cooler (4) connects the oil inlet end washing benzene tower (12) by oil pipe.
2. as claimed in claim 1 with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, it is characterized in that: also comprise dashpot (5) and oil pump (6),
Well heater (3) and water cooler (4) all have two at least, and each water cooler (4) is sequentially connected in series by oil pipe and forms multistage cooling module (40);
First oil outlet end of interchanger (2) connects the oil inlet end of each well heater (3) respectively by oil pipe, the oil outlet end of each well heater (3) all connects the oil inlet end of dashpot (5) by oil pipe, the oil outlet end of dashpot (5) connects the oil inlet end of multistage cooling module (40) by oil pipe, the oil outlet end of multistage cooling module (40) connects the oil inlet end washing benzene tower (12) by oil pipe;
Connect debenzolizing tower (11) oil outlet end with on the oil pipe of interchanger (2) oil inlet end, the oil pipe that is connected dashpot (5) oil outlet end and multistage cooling module (40) oil inlet end is all in series with oil pump (6).
3. as claimed in claim 1 or 2 with de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus, it is characterized in that: each well heater (3) be provided with in ammonia still (13), ammonium sulfate device and coke-oven gas producer any one, to make any one in the gas preheater and the saturated preheater of spray-type of the reboiler of ammonia still, ammonium sulfate device of well heater (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445124.6U CN204138621U (en) | 2014-08-08 | 2014-08-08 | With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445124.6U CN204138621U (en) | 2014-08-08 | 2014-08-08 | With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN204138621U true CN204138621U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420445124.6U Withdrawn - After Issue CN204138621U (en) | 2014-08-08 | 2014-08-08 | With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus |
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| CN (1) | CN204138621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331395A (en) * | 2014-08-08 | 2016-02-17 | 宝钢工程技术集团有限公司 | Steam-free gas purifier with debenzolized hot lean oil as heat source and application method thereof |
-
2014
- 2014-08-08 CN CN201420445124.6U patent/CN204138621U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331395A (en) * | 2014-08-08 | 2016-02-17 | 宝钢工程技术集团有限公司 | Steam-free gas purifier with debenzolized hot lean oil as heat source and application method thereof |
| CN105331395B (en) * | 2014-08-08 | 2018-02-16 | 宝钢工程技术集团有限公司 | With de- benzene heat it is oil-poor be thermal source without steam gas cleaning device and its application method |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20180216 |