CN101398263A - Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing - Google Patents
Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing Download PDFInfo
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- CN101398263A CN101398263A CNA2008100553146A CN200810055314A CN101398263A CN 101398263 A CN101398263 A CN 101398263A CN A2008100553146 A CNA2008100553146 A CN A2008100553146A CN 200810055314 A CN200810055314 A CN 200810055314A CN 101398263 A CN101398263 A CN 101398263A
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Abstract
The invention relates to a method for generating high-temperature heating water and hot bath water by utilizing a cross-tube primary cooler of a coke-oven plant, which is characterized in that three groups of cooling water pipes are arranged inside the primary cooler, in other words, the primary cooler is divided into three sections, a first section uses high-temperature circulating water at the temperature of 65 DEG C for coal gas cooling, a second section uses circulating water at the temperature of 32 plus or minus 1 DEG C for coal gas cooling, and a third section uses low-temperature water at the temperature of 18 plus or minus 1 DEG C for coal gas cooling; the first section implements indirect reverse heat exchange with coal gas by adopting the circulating water at the temperature of 65 DEG C and at the speed of 2.8 to 3.2 meter per second, thus cooling the temperature of the coal gas to a range between 68 and 70 DEG C and raising the temperature of the circulating water to a range between 73 and 75 DEG C, and the circulating water at the raised temperature of 73 to 75 DEG C can be used as heating and bath water. The method utilizes afterheat and can achieve the energy-saving effect. The method realizes the heat exchange by utilizing the heat of waste coal gas and then provides heat energy for citizen use, thus having energy-saving effect, less investment and better economic benefits.
Description
Technical field
The present invention relates to a kind of method of utilizing coke-oven plant's transverse pipe initial cooler to go out high temperature heating and having a bath usefulness hot water.
Background technology
The coke-oven plant is when the cooling coal oven dithio-gas at present, mostly be to adopt two sections cooling methods of transverse pipe initial cooler, promptly make coal gas be cooled to 45 ℃ ± 1 ℃ behind the reverse indirect heat exchange of raw coke oven gas that first section is used 32 ℃ ± 1 ℃ recirculated water and 80 ℃ ± 2 ℃, and recirculated water is warming up to 45 ℃ ± 1 ℃; Make coal gas be cooled to 22 ℃ behind the reverse indirect heat exchange of raw coke oven gas that second section is used 18 ℃ ± 1 ℃ water at low temperature and 45 ℃ ± 1 ℃, and water at low temperature is warming up to 24 ℃, a large amount of heats does not make full use of in the raw coke oven gas cooling procedure like this, causes the waste of the energy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of coke oven raw gas three-segment cooling method for the heating and the usefulness hot water of having a bath.
The present invention adopts following technical scheme:
The present invention is provided with three groups of cooling water pipes in primary cooler, be about to primary cooler and be divided into three sections, first section with 65 ℃ of high temperature circulation water cooling coal gas, second section with 32 ℃ ± 1 ℃ recirculated water cooling coal gas, the 3rd section with 18 ℃ ± 1 ℃ water at low temperature cooling coal gas, first section adopt 65 ℃ of recirculated waters with 2.8～3.2m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 68 ℃～70 ℃, and recirculated water is warming up to 73 ℃～75 ℃, and the recirculated water that is warming up to 73～75 ℃ becomes heating and bathing water.
First section of the present invention in cooling tube 1, adopt 65 ℃ of recirculated waters with the flow velocity of 2.8～3.2m/s and coal gas after transverse pipe initial cooler carries out reverse indirect heat exchange, recirculated water is warming up to 73 ℃～75 ℃, 73～75 ℃ recirculated water is for heating, bathing water, or with the water at low temperature heat exchange after be cooled to 65 ℃ ± 1 ℃ and can recycle for transverse pipe initial cooler.
Good effect of the present invention is as follows: the present invention utilizes coke-oven plant's transverse pipe initial cooler high temperature circulation hydro-thermal can supply the method for winter heating and heating water for bathing, and the present invention is a UTILIZATION OF VESIDUAL HEAT IN, can reach energy-conservation effect.After the present invention utilizes the heat of raw coke oven gas to carry out heat exchange, heat energy is offered civilian, not only play energy-conservation effect, and small investment, good in economic efficiency.
Description of drawings
Accompanying drawing 1 is existing transverse pipe initial cooler structural representation;
Accompanying drawing 2 is transverse pipe initial cooler structural representation of the present invention.
In the accompanying drawings: 1 cooling tube, 2 cooling tubes, 3 cooling tubes, 4 transverse pipe initial coolers, 5 gas inlets, 6 gas exits.
The specific embodiment
Below in conjunction with embodiment the present invention is done detailed argumentation:
Be existing transverse pipe initial cooler as shown in Figure 1, adopt two groups of cooling tubes, be cooling tube 1 and cooling tube 2, coal vapour enters transverse pipe initial cooler 4 from gas inlet 5, through drawing by gas exit 6 after two sections coolings, promptly behind first section is used 32 ℃ ± 1 ℃ recirculated water and 80 ℃ ± 2 ℃ in cooling tube 1 the reverse indirect heat exchange of raw coke oven gas, make coal gas be cooled to 45 ℃ ± 1 ℃; Behind second section is used 18 ℃ ± 1 ℃ water at low temperature and 45 ℃ ± 1 ℃ in cooling tube 2 the reverse indirect heat exchange of raw coke oven gas, make coal gas be cooled to 22 ℃.As shown in Figure 2, the present invention improves transverse pipe initial cooler 4, promptly adopt three groups of cooling tubes, be cooling tube 1, cooling tube 2 and cooling tube 3, coal vapour enters transverse pipe initial cooler 4 from gas inlet 5, through drawing by gas exit 6 after three sections coolings, be about to primary cooler and be divided into three sections, first section in cooling tube 1 with 65 ℃ of high temperature circulation water cooling coal gas, second section is cooled off coal gas with 32 ℃ ± 1 ℃ recirculated water in cooling tube 2, the 3rd section is cooled off coal gas with 18 ℃ ± 1 ℃ water at low temperature in cooling tube 3, second section, the 3rd section heat exchange mode is identical with existing technology, no longer statement.First section adopt 65 ℃ of recirculated waters with 2.8～3.2m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 68 ℃～70 ℃, and recirculated water is warming up to 73 ℃～75 ℃, so not only can avoid violent heat exchange to cause the heat exchanger tube difference variation to be out of shape greatly, and a recirculated water part that is warming up to 73～75 ℃ supplies factory heating, resident's heating, make water at low temperature be warming up to 40～45 ℃ after a part and the water at low temperature heat exchange for the publilc baths bathing water, 73～75 ℃ recirculated water is through heating, with be cooled to 65 ℃ ± 1 ℃ after the water at low temperature heat exchange and can recycle for transverse pipe initial cooler, this recirculated water can make when heating that temperature reaches 16 ℃～20 ℃ in the room.
1: the first section of embodiment in cooling tube 1 with 65 ℃ of high temperature circulation water cooling coal gas, second section is cooled off coal gas with 32 ℃ of recirculated waters in cooling tube 2, the 3rd section is cooled off coal gas with 18 ℃ of water at low temperature in cooling tube 3, second section, the 3rd section heat exchange mode is identical with existing technology, no longer statement.First section adopt 65 ℃ of recirculated waters with 2.8m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 68 ℃, and recirculated water is warming up to 73 ℃, so not only can avoid violent heat exchange to cause the heat exchanger tube difference variation to be out of shape greatly, and be warming up to 73 the heating of recirculated water part confession factory, resident's heating.
2: the first sections of embodiment in cooling tube 1 with 65 ℃ of high temperature circulation water cooling coal gas, second section is cooled off coal gas with 33 ℃ of recirculated waters in cooling tube 2, the 3rd section is cooled off coal gas with 19 ℃ of water at low temperature in cooling tube 3, second section, the 3rd section heat exchange mode is identical with existing technology, no longer statement.First section adopt 65 ℃ of recirculated waters with 3.2m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 70 ℃, and recirculated water is warming up to 75 ℃, so not only can avoid violent heat exchange to cause the heat exchanger tube difference variation to be out of shape greatly, and be warming up to 75 ℃ the heating of recirculated water part confession factory, resident's heating.
3: the first sections of embodiment in cooling tube 1 with 65 ℃ of high temperature circulation water cooling coal gas, second section is cooled off coal gas with 31 ℃ of recirculated waters in cooling tube 2, the 3rd section is cooled off coal gas with 17 ℃ of water at low temperature in cooling tube 3, second section, the 3rd section heat exchange mode is identical with existing technology, no longer statement.First section adopt 65 ℃ of recirculated waters with 3.0m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 69 ℃, and recirculated water is warming up to 74 ℃, so not only can avoid violent heat exchange to cause the heat exchanger tube difference variation to be out of shape greatly, and be warming up to 74 ℃ the heating of recirculated water part confession factory, resident's heating.
Claims (2)
1, a kind of coke oven raw gas three-segment cooling method for the heating and the usefulness hot water of having a bath, it is characterized in that in primary cooler, being provided with three groups of cooling water pipes, be about to primary cooler and be divided into three sections, first section with 65 ℃ of high temperature circulation water cooling coal gas, second section with 32 ℃ ± 1 ℃ recirculated water cooling coal gas, the 3rd section with 18 ℃ ± 1 ℃ water at low temperature cooling coal gas, first section adopt 65 ℃ of recirculated waters with 2.8～3.2m/s and the reverse indirect heat exchange of coal gas after, can make coal gas be cooled to 68 ℃～70 ℃, and recirculated water is warming up to 73 ℃～75 ℃, and the recirculated water that is warming up to 73～75 ℃ becomes heating and bathing water.
2, according to right 1 described a kind of coke oven raw gas three-segment cooling method for the heating and the usefulness hot water of having a bath, it is characterized in that first section in cooling tube 1, adopt 65 ℃ of recirculated waters with the flow velocity of 2.8～3.2m/s and coal gas after transverse pipe initial cooler carries out reverse indirect heat exchange, recirculated water is warming up to 73 ℃～75 ℃, 73～75 ℃ recirculated water is for heating, bathing water, or with the water at low temperature heat exchange after be cooled to 65 ℃ ± 1 ℃ and can recycle for transverse pipe initial cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100553146A CN101398263A (en) | 2008-07-02 | 2008-07-02 | Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100553146A CN101398263A (en) | 2008-07-02 | 2008-07-02 | Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing |
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| CN101398263A true CN101398263A (en) | 2009-04-01 |
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| CNA2008100553146A Pending CN101398263A (en) | 2008-07-02 | 2008-07-02 | Coke oven raw gas three-segment cooling method for supply hot water for heating and bathing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445092A (en) * | 2010-10-15 | 2012-05-09 | 杰智环境科技股份有限公司 | Gas-to-gas heat exchanger and waste gas incinerator integrating same |
| CN102911679A (en) * | 2012-11-13 | 2013-02-06 | 济钢集团有限公司 | Coke oven gas primary cooler waste heat recycling system |
| CN103254943A (en) * | 2013-05-21 | 2013-08-21 | 中冶焦耐工程技术有限公司 | Pre-cooling process and device of low-section replenishing liquor of transverse pipe pre-cooler |
| CN103344136A (en) * | 2013-07-25 | 2013-10-09 | 烟台珈群高效节能设备有限公司 | Blast furnace tower cooling mechanism |
| CN105925278A (en) * | 2016-06-30 | 2016-09-07 | 中国重型机械研究院股份公司 | Stepping type pushing high-temperature coke breeze cooling system |
| CN107940535A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of primary cooler epimere high-temperature-hot-water is used for the closed circulation system of heating |
| CN111561661A (en) * | 2020-04-29 | 2020-08-21 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
-
2008
- 2008-07-02 CN CNA2008100553146A patent/CN101398263A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445092A (en) * | 2010-10-15 | 2012-05-09 | 杰智环境科技股份有限公司 | Gas-to-gas heat exchanger and waste gas incinerator integrating same |
| CN102911679A (en) * | 2012-11-13 | 2013-02-06 | 济钢集团有限公司 | Coke oven gas primary cooler waste heat recycling system |
| CN102911679B (en) * | 2012-11-13 | 2014-01-08 | 济钢集团有限公司 | Coke oven gas primary cooler waste heat recycling system |
| CN103254943A (en) * | 2013-05-21 | 2013-08-21 | 中冶焦耐工程技术有限公司 | Pre-cooling process and device of low-section replenishing liquor of transverse pipe pre-cooler |
| CN103344136A (en) * | 2013-07-25 | 2013-10-09 | 烟台珈群高效节能设备有限公司 | Blast furnace tower cooling mechanism |
| CN105925278A (en) * | 2016-06-30 | 2016-09-07 | 中国重型机械研究院股份公司 | Stepping type pushing high-temperature coke breeze cooling system |
| CN105925278B (en) * | 2016-06-30 | 2021-05-11 | 中国重型机械研究院股份公司 | Stepping type pushing high-temperature coke breeze cooling system |
| CN107940535A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of primary cooler epimere high-temperature-hot-water is used for the closed circulation system of heating |
| CN111561661A (en) * | 2020-04-29 | 2020-08-21 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
| CN111561661B (en) * | 2020-04-29 | 2021-12-24 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
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Open date: 20090401 |