CN203771860U - Coking gas cooling system - Google Patents
Coking gas cooling system Download PDFInfo
- Publication number
- CN203771860U CN203771860U CN201420160366.0U CN201420160366U CN203771860U CN 203771860 U CN203771860 U CN 203771860U CN 201420160366 U CN201420160366 U CN 201420160366U CN 203771860 U CN203771860 U CN 203771860U
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- CN
- China
- Prior art keywords
- cooling
- refrigeration unit
- water
- temperature
- sub
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 117
- 238000004939 coking Methods 0.000 title abstract description 4
- 239000000498 cooling water Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005057 refrigeration Methods 0.000 claims description 41
- 239000000571 coke Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 abstract description 29
- 239000002918 waste heat Substances 0.000 abstract description 5
- 239000003034 coal gas Substances 0.000 description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Industrial Gases (AREA)
Abstract
The utility model discloses a coking gas cooling system comprising a primary cooler. The primary cooler comprises a high-temperature cooling portion, an intermediate-temperate cooling portion and a low-temperature cooling portion, the intermediate-temperate cooling portion is provided with a first cooling circuit, the low-temperature cooling portion is provided with a second cooling circuit, the first cooling circuit comprises a first cooling tower and a first cooling water pump, the second cooling circuit is provided with a refrigerating unit, the refrigerating unit is connected with the low-temperature cooling portion through two pipelines which are respectively used for receiving cooling water from the low-temperature cooling portion and delivering cooling water to the low-temperature cooling portion, the refrigerating unit is further provided with a second cooling tower and a second cooling water pump in series through a pipeline, and the refrigerating unit and the high-temperature cooling portion are also connected through two pipelines which are respectively used for delivering cooling water to the high-temperature cooling portion and delivering hot water to the refrigerating unit after heat exchange via the high-temperature cooling portion. Compared with the prior art, the coking gas cooling system has the advantages that waste heat in raw gas can be fully utilized, and consumption of primary energy is reduced.
Description
Technical field
The utility model relates to a kind of cooling system, particularly a kind of coke gas cooling system.
Background technology
As shown in Figure 1, current existing coke oven coke gas cooling system comprises primary cooler, described primary cooler comprises High-temperature cooling portion 1, middle temperature cooling end 2 and sub-cooled portion 3, described middle temperature cooling end 2 has the first cooling circuit, 3 of described sub-cooled have the second cooling circuit, described the first cooling circuit comprises the first cooling tower 5 and for cooling water is pumped to the first cooling water pump 4 of described the first cooling tower 5 by pipeline 10, described the second cooling circuit comprises refrigeration unit 8, described refrigeration unit 8 is connected and is respectively used to accept cooling water and carry cooling water to sub-cooled portion 3 from sub-cooled portion 3 with described sub-cooled portion 3 by two sections of pipelines (pipeline section 11 and pipeline section 12) respectively, described refrigeration unit 8 is also connected and is provided with the second cooling tower 6 and the second cooling water pump 7 by pipeline.Spray cooling raw gas by gas-liquid separator from coke oven through cyclic ammonia water, gas and liquid initial gross separation, coal gas enters primary cooler and carries out coolingly, and coal gas is cooled to 21 DEG C of left and right.In primary cooler High-temperature cooling portion, the recirculated water heat exchange in coal gas and cooling tube, coal gas is cooled to 50 DEG C of left and right from 85 DEG C of left and right; Warm cooling end 2 in primary cooler, utilizes the cooling coal gas of cooling tower, and cooling temperature of circulating water goes cooling tower cooling after rising to 40 DEG C by 32 DEG C; The cold water heat exchange of coal gas in primary cooler sub-cooled portion 3 and cooling tube, coal gas is cooled to 21 DEG C from 40 DEG C, and cooling water rises to 23 DEG C by 16 DEG C and again returns to refrigeration unit 8 and carry out coolingly, completes a circulation with this.
In existing coking raw gas primary cooler cooling system, mainly utilizing cooling tower and refrigeration unit to carry out cooling raw gas, fail to make full use of the middle taste heat comprising in raw gas, there is mass energy loss in natural heat dissipation and refrigeration unit driving heat source aspect.Meanwhile, there is cooling water evaporation loss and the water loss that wafts in the supporting cooling tower of cooling tower and refrigeration unit.Environment temperature during with seasonal variations, causes gas cooling system less stable.
Utility model content
In view of the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of coke gas cooling system that can make full use of the waste heat in raw gas.
To achieve these goals, a kind of coke gas cooling system that the utility model provides, comprise primary cooler, described primary cooler comprises High-temperature cooling portion, middle temperature cooling end and sub-cooled portion, described middle temperature cooling end has the first cooling circuit, described sub-cooled portion has the second cooling circuit, described the first cooling circuit comprises the first cooling tower and for cooling water is pumped to the first cooling water pump of described the first cooling tower by pipeline, described the second cooling circuit comprises refrigeration unit, described refrigeration unit is connected with described sub-cooled portion by two sections of pipelines and is respectively used to accept cooling water and carry cooling water to sub-cooled portion from sub-cooled portion respectively, described refrigeration unit is also connected and is provided with the second cooling tower and the second cooling water pump by pipeline, wherein, described refrigeration unit is also connected by two sections of pipelines with described High-temperature cooling portion, described two sections of pipelines are respectively used to by refrigeration unit to High-temperature cooling portion conveying cooling water and by the backward refrigeration unit delivering hot water of described High-temperature cooling portion's heat exchange.
As preferably, for being provided with heat-exchanger pump by High-temperature cooling portion on refrigeration unit delivering hot water's pipeline.
As preferably, for being provided with water supply pump by refrigeration unit on the pipeline of sub-cooled portion conveying cold water.
As preferably, described refrigeration unit is lithium bromide absorption type heat pump.
Compared with prior art, the utlity model has following beneficial effect:
1, make full use of the waste heat in raw gas, reduced the consumption of primary energy.
2, reduce the use of cooling tower, effectively reduced the evaporation loss of cooling water and the water loss that wafts.
3, utilize refrigeration unit, can make gas cooling system stable, not affected by Changes in weather.
Brief description of the drawings
Fig. 1 is the principle schematic of the coke gas cooling system of prior art;
Fig. 2 is the principle schematic of coke gas cooling system of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present utility model is further described in detail.
As shown in Figure 2, a kind of coke gas cooling system that the utility model provides, comprise primary cooler, described primary cooler comprises High-temperature cooling portion 1, middle temperature cooling end 2 and sub-cooled portion 3, described middle temperature cooling end 2 has the first cooling circuit, described sub-cooled portion has the second cooling circuit, described the first cooling circuit comprises the first cooling tower 5 and for cooling water is pumped to the first cooling water pump 4 of described the first cooling tower 5 by pipeline 10, described the second cooling circuit comprises refrigeration unit 8, described refrigeration unit 8 is connected with described sub-cooled portion 3 by pipeline 11 and pipeline 12 respectively, be respectively used to accept cooling water and carry cooling water to sub-cooled portion 3 from sub-cooled portion 3, described refrigeration unit 8 is also provided with the second cooling tower 6 and the second cooling water pump 7 by pipeline 16 series connection, wherein, described refrigeration unit 8 is also connected with pipeline 15 by pipeline 14 with described High-temperature cooling portion 1, described two sections of pipelines are respectively used to carry cooling water and by backward refrigeration unit 8 delivering hot waters of described High-temperature cooling portion's 1 heat exchange by refrigeration unit 8 to High-temperature cooling portion 1.
In summer crude gas cooling technique, complete heat exchange by the High-temperature cooling portion 1 of primary cooler, middle temperature cooling end 2 and sub-cooled portion 3 successively from the raw gas of coke oven, discharge after being finally reduced to 21 DEG C; Heat exchange cooling water (approximately 75 DEG C) after High-temperature cooling portion 1 heats up with raw gas heat exchange is as being sent to refrigeration unit 8 via pipeline 14, after refrigeration unit 8 is cooled to 65 DEG C, recycle go back to High-temperature cooling portion 1, meet High-temperature cooling portion 1 raw gas cooling requirement.In the utility model, refrigeration unit 8 can be preferably lithium bromide absorption type heat pump; Cooling water after middle temperature cooling end 2 and raw gas heat exchange heat up is lowered the temperature in being delivered to the first cooling tower 5 by the first cooling water pump 4, loops back middle temperature cooling end 2 after cooling; The pipeline 11 of sub-cooled portion 3 is connected with refrigeration unit 8 with pipeline 12, and 16 DEG C of cold water exporting by refrigeration unit meet the demand that absorbs raw gas waste heat.
In addition, as shown in Figure 2, as preferably, can be respectively transported to sub-cooled portion 3 to water supply pump 9 being set on the pipeline 12 between described sub-cooled portion 3 for the cold water of 16 DEG C that will export by refrigeration unit in described refrigeration unit 8; Meanwhile, can High-temperature cooling portion 1 to arrange on the pipeline 14 between refrigeration unit 8 heat-exchanger pump 13 for by the delivery heating through High-temperature cooling portion 1 to refrigeration unit 8.As preferably, for being provided with water supply pump by refrigeration unit on the pipeline of sub-cooled portion conveying cold water.
Through experiment test, coke gas cooling system of the present utility model is compared to prior art and has following beneficial effect:
1, make full use of the waste heat in raw gas, reduced the consumption of primary energy.
2, reduce the use of cooling tower, effectively reduced the evaporation loss of cooling water and the water loss that wafts.
3, utilize absorption type heat pump assembly, can make gas cooling system stable, not affected by Changes in weather.
Certainly, the above is the preferred embodiment of utility model, should be understood that; for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (3)
1. a coke gas cooling system, comprise primary cooler, described primary cooler comprises High-temperature cooling portion, middle temperature cooling end and sub-cooled portion, described middle temperature cooling end has the first cooling circuit, described sub-cooled portion has the second cooling circuit, described the first cooling circuit comprises the first cooling tower and for cooling water is pumped to the first cooling water pump of described the first cooling tower by pipeline, described the second cooling circuit comprises refrigeration unit, described refrigeration unit is connected with described sub-cooled portion by two sections of pipelines and is respectively used to accept cooling water and carry cooling water to sub-cooled portion from sub-cooled portion respectively, described refrigeration unit is also connected and is provided with the second cooling tower and the second cooling water pump by pipeline, it is characterized in that, described refrigeration unit is also connected by two sections of pipelines with described High-temperature cooling portion, described two sections of pipelines are respectively used to by refrigeration unit to High-temperature cooling portion conveying cooling water and by the backward refrigeration unit delivering hot water of described High-temperature cooling portion's heat exchange.
2. coke gas cooling system as claimed in claim 1, is characterized in that, for being provided with heat-exchanger pump by High-temperature cooling portion on refrigeration unit delivering hot water's pipeline.
3. coke gas cooling system as claimed in claim 1, is characterized in that, for being provided with water supply pump by refrigeration unit on the pipeline of sub-cooled portion conveying cold water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160366.0U CN203771860U (en) | 2014-04-03 | 2014-04-03 | Coking gas cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160366.0U CN203771860U (en) | 2014-04-03 | 2014-04-03 | Coking gas cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771860U true CN203771860U (en) | 2014-08-13 |
Family
ID=51289045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160366.0U Expired - Lifetime CN203771860U (en) | 2014-04-03 | 2014-04-03 | Coking gas cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180582A (en) * | 2014-08-16 | 2014-12-03 | 山西潞安矿业(集团)有限责任公司 | Desalted water adjusting device of raw gas intercooler |
| CN104403700A (en) * | 2014-11-26 | 2015-03-11 | 山东钢铁股份有限公司 | Device and method for coke oven gas cooling and residual heat recycling |
-
2014
- 2014-04-03 CN CN201420160366.0U patent/CN203771860U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180582A (en) * | 2014-08-16 | 2014-12-03 | 山西潞安矿业(集团)有限责任公司 | Desalted water adjusting device of raw gas intercooler |
| CN104403700A (en) * | 2014-11-26 | 2015-03-11 | 山东钢铁股份有限公司 | Device and method for coke oven gas cooling and residual heat recycling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 065001, 333 Peng Road, Langfang economic and Technological Development Zone, Hebei, China Patentee after: TONGFANG ENERGY SAVING EQUIPMENT Co.,Ltd. Address before: 065001, Langfang economic and Technological Development Zone, Hebei Province, Peng Peng Road, No. 333 Patentee before: TONGFANG KAWASAKI ADVANCED ENERGY-SAVING MACHINE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |