CN204421043U - Off-gas recovery deep condensation device - Google Patents
Off-gas recovery deep condensation device Download PDFInfo
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- CN204421043U CN204421043U CN201520048029.7U CN201520048029U CN204421043U CN 204421043 U CN204421043 U CN 204421043U CN 201520048029 U CN201520048029 U CN 201520048029U CN 204421043 U CN204421043 U CN 204421043U
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Abstract
A kind of off-gas recovery deep condensation device, comprise boiler, economizer and secondary pipe network backwater, this economizer afterbody connects one-level hot-water heater, secondary air heater, air-introduced machine, three grades of flue gas condensers and chimney successively; Described one-level hot-water heater is sent secondary network back to after accessing the heating of described secondary pipe network backwater respectively and is supplied water, and sends into boiler after the heating of secondary air heater access outdoor air; Described three grades of condensator outlets are communicated with closed cooling tower, and these three grades of condenser inlets are communicated with closed cooling tower by water pump; Described gas fired-boiler, economizer, one-level hot-water heater, secondary air heater, three grades of flue gas condensers and chimney are all communicated with condensate pipe, and this condensate pipe is communicated with condensation water collection water tank, and this condensation water collection water tank is communicated with condensation water treatment cistern.The utility model can reach and reduce exhaust gas temperature to 35 DEG C, and the latent heat that can contain in recovered flue gas and collect thing followed condensed water and be used, achieve the object of energy-conserving and environment-protective.
Description
Technical field
The utility model relates to a kind of flue gas heat recovery technical field, specifically refers to a kind of off-gas recovery deep condensation device.
Background technology
Nearly ten years, due to energy shortage, various energy-saving equipment and system phase sequence are applied thereupon.And boiler exhaust gas power consumption is large about 15%, loss is comparatively large, therefore creates various flue gas waste heat recovery apparatus.The heat that flue gas is mainly carried by certain heat exchange mode by flue gas waste heat recovery apparatus converts utilizable heat to.Usually have with under type:
1. flue gas waste heat recovery apparatus (air-water)
Heat pipe flue gas waste heat recovery apparatus is coal-fired, oil, gas boiler special equipment, is arranged on boiler mouth, Mist heat recovering heating domestic water or boiler replenishing water.This kind of equipment bottom is flue, and top is water tank, and there is dividing plate centre.Safety valve, Pressure gauge, thermometer interface are arranged at top, and water tank has Inlet and outlet water and sewage draining exit.During work, flue gas flows through heat pipe waste heat and returns device flue and wash away heat pipe lower end, and after heat pipe heat absorption, heat is directed at upper end, water heats by the heat release of heat pipe upper end.In order to prevent stifled ash and corrosion, waste-heat recoverer exit gas temperature general control is more than dew point, i.e. fuel oil, coal-burning boiler exhaust gas temperature ≮ 130 DEG C, gas fired-boiler exhaust gas temperature ≮ 100 DEG C, save fuel 4-18%.
2. flue gas waste heat recovery apparatus (gas-gas)
Heat pipe flue gas waste heat recovery apparatus is fuel oil, coal, gas boiler special equipment, is arranged in boiler mouth or flue, adds hot-air by after flue gas waste heat recovery, and hot blast can be used as boiler auxiliary combustion and dried material.This kind of equipment surrounding bobbin carriage, two wing passages separate by central dividing plate, and heat pipe is full finned tube, and single heat pipe is replaceable.During work, high-temperature flue gas upwards flows from left channel and washes away heat pipe, and now heat pipe heat absorption, flue gas exothermic temperature declines.The heat of absorption is caused right-hand member by heat pipe, and cold air is from the downward regressive erosion heat pipe of right channel, and now heat pipe heat release, air endothermic temperature raises.Flue gas waste heat recovery apparatus exit gas temperature is not less than dew point.
The exhaust gas temperature of above two kinds of modes is all more than dew point, and the absorption rate of flue gas is not high, and is not absorbed by the steam latent heat of about 11% in gas fired-boiler flue gas.
Utility model content
The utility model provides a kind of off-gas recovery deep condensation device, exhaust gas temperature is reduced to about 35 DEG C, the latent heat contained in recovered flue gas to greatest extent, and collects a large amount of condensed water of the thing followed, realizes the object of energy-conserving and environment-protective.
For this reason, the technical scheme adopted is:
A kind of off-gas recovery deep condensation device, comprise boiler, economizer and secondary pipe network backwater, described economizer afterbody connects one-level hot-water heater, secondary air heater, air-introduced machine, three grades of flue gas condensers and chimney successively by flange; Described one-level hot-water heater is sent secondary network back to after accessing the heating of described secondary pipe network backwater respectively and is supplied water, and sends into boiler after the heating of secondary air heater access outdoor air; Described three grades of condensator outlets are communicated with closed cooling tower, and these three grades of condenser inlets are communicated with closed cooling tower by water pump; Described gas fired-boiler, economizer, one-level hot-water heater, secondary air heater, three grades of flue gas condensers and chimney are all communicated with condensate pipe, and this condensate pipe is communicated with condensation water collection water tank, this condensation water collection water tank is communicated with condensation water treatment cistern, and the water after this condensation water treatment cistern process is used.
Described one-level hot-water heater comprises first-stage condenser, secondary condenser.
The utility model is recycled the waste heat degree of depth in flue gas by one-level hot-water heater, secondary air heater, three grades of flue gas condensers, finally reach and reduce exhaust gas temperature to 35 DEG C, and the latent heat contained in recovered flue gas to greatest extent and collect a large amount of condensed water of the thing followed and be used, achieve the object of energy-conserving and environment-protective.
The utility model is applicable to combustion gas, thermo oil boiler flue gas heat recovery.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model and effect thereof are further illustrated.
With reference to Fig. 1, a kind of off-gas recovery deep condensation device, except boiler, economizer and secondary pipe network backwater, this device also comprises first-stage condenser, secondary condenser, air heater, three grades of condensers, air-introduced machine, cigarette air channel, chimney, closed cooling tower, grug feeding jar, circulating pump, condensation water collection water tank, condensation water treatment cistern and water pump at different levels, PLC control system.
Annexation of the present utility model is: described economizer afterbody connects one-level hot-water heater, secondary air heater, air-introduced machine, three grades of flue gas condensers and cigarette air channel and chimney successively by flange; Described one-level hot-water heater comprises first-stage condenser, secondary condenser, and it is sent secondary network back to after accessing the heating of described secondary pipe network backwater respectively and supplies water, and sends into boiler after the heating of secondary air heater access outdoor air; Described three grades of condensator outlets are communicated with closed cooling tower, and these three grades of condenser inlets are communicated with closed cooling tower by water pump; Described gas fired-boiler, economizer, one-level hot-water heater, secondary air heater, three grades of flue gas condensers and chimney are all communicated with condensate pipe, and this condensate pipe is communicated with condensation water collection water tank, this condensation water collection water tank is communicated with condensation water treatment cistern, and the water after this condensation water treatment cistern process is used.
Above-mentioned one-level, use the secondary pipe network backwater of 48 DEG C as recirculated water in secondary condenser, the air that the air themperature that secondary air heater uses is outdoor 0 DEG C to subzero about 20 DEG C, the water of 10 DEG C that three grades of condensers use closed cooling tower to provide is as recirculated water, gone to absorb the heat in flue gas by these water and airs lower than flue-gas temperature, process is that the flue gas of 120 DEG C is reduced to 70 DEG C through first-stage condenser, and the recirculated water in first-stage condenser is elevated to 62.3 DEG C from 48 DEG C, then the flue gas of 70 DEG C is reduced to 53 DEG C through secondary condenser, and the recirculated water of secondary condenser is elevated to 52.5 DEG C from 48 DEG C, the flue gas of 53 DEG C is reduced to 50 DEG C through air heater afterwards, and air is heated about 23.6 DEG C, subsequently the flue gas of 50 DEG C enters after three grades of condensers through air-introduced machine and is reduced to about 35 DEG C, all data refer to Table A, B, C, D.Air is entered through chimney.The condensed water produced in flue gas cool-down process is collected through condensate pipe and is entered condensation water collection water tank, and then through condensation water treatment cistern, pH value is neutralized as neutral water in acid condensed water by the mode adding basic agent, then by again sending into boiler after softening water tank and be used or directly as domestic water or again send into closed cooling tower and recycle.So reach the object of Mist heat recovering and Collection utilization condensed water.
The tube bank of the utility model equipment material is for ND steel, and to the effect that low-temperature-acid-corrosion has it original, this process only plays the effect of condensation flue gas emissions reduction, and the Latent heat water that is condensed absorbs and clean and discharges afterwards, and flue-gas temperature drops to about 35 DEG C.A large amount of steam condensations will be produced and next condensed water (accounting for about 11% of exhaust gas volumn) is collected recycling in whole flue gas cool-down process.Finally reach and reduce exhaust gas temperature to 35 DEG C, condensation collect a large amount of condensed water and the object be used.
Table A
100T gas fired-boiler off-gas recovery deep condensation device (i and II condenser related data)
Table B
100T gas fired-boiler off-gas recovery deep condensation device (air heater related data)
Table C
100T gas fired-boiler off-gas recovery deep condensation device (three grades of condenser related datas)
Table D
100T gas fired-boiler off-gas recovery deep condensation device (condensation water quantity)
Claims (2)
1. an off-gas recovery deep condensation device, comprise boiler, economizer and secondary pipe network backwater, it is characterized in that: described economizer afterbody connects one-level hot-water heater, secondary air heater, air-introduced machine, three grades of flue gas condensers and chimney successively by flange; Described one-level hot-water heater is sent secondary network back to after accessing the heating of described secondary pipe network backwater respectively and is supplied water, and sends into boiler after the heating of secondary air heater access outdoor air; Described three grades of condensator outlets are communicated with closed cooling tower, and these three grades of condenser inlets are communicated with closed cooling tower by water pump; Described gas fired-boiler, economizer, one-level hot-water heater, secondary air heater, three grades of flue gas condensers and chimney are all communicated with condensate pipe, and this condensate pipe is communicated with condensation water collection water tank, this condensation water collection water tank is communicated with condensation water treatment cistern, and the water after this condensation water treatment cistern process is used.
2. a kind of off-gas recovery deep condensation device according to claim 1, is characterized in that: described one-level hot-water heater comprises first-stage condenser, secondary condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048029.7U CN204421043U (en) | 2015-01-23 | 2015-01-23 | Off-gas recovery deep condensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048029.7U CN204421043U (en) | 2015-01-23 | 2015-01-23 | Off-gas recovery deep condensation device |
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| Publication Number | Publication Date |
|---|---|
| CN204421043U true CN204421043U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520048029.7U Expired - Fee Related CN204421043U (en) | 2015-01-23 | 2015-01-23 | Off-gas recovery deep condensation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042559A (en) * | 2015-08-08 | 2015-11-11 | 江苏双良锅炉有限公司 | Efficient energy-saving steam-gas boiler with secondary condenser |
| CN107013901A (en) * | 2017-05-24 | 2017-08-04 | 湖南泰通电力科技有限公司 | A kind of condensed-water recovering device and method based on waste heat boiler low-temperature flue gas |
| CN108195216A (en) * | 2018-02-24 | 2018-06-22 | 李宜立 | Steam and residual heat using device and its technique in flue gas |
| CN113587116A (en) * | 2021-09-28 | 2021-11-02 | 光大环保技术装备（常州）有限公司 | Control method, control system and equipment for protection equipment in water-cooling circulation system |
-
2015
- 2015-01-23 CN CN201520048029.7U patent/CN204421043U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042559A (en) * | 2015-08-08 | 2015-11-11 | 江苏双良锅炉有限公司 | Efficient energy-saving steam-gas boiler with secondary condenser |
| CN107013901A (en) * | 2017-05-24 | 2017-08-04 | 湖南泰通电力科技有限公司 | A kind of condensed-water recovering device and method based on waste heat boiler low-temperature flue gas |
| CN108195216A (en) * | 2018-02-24 | 2018-06-22 | 李宜立 | Steam and residual heat using device and its technique in flue gas |
| CN113587116A (en) * | 2021-09-28 | 2021-11-02 | 光大环保技术装备（常州）有限公司 | Control method, control system and equipment for protection equipment in water-cooling circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190726 Address after: No. 99 Wangda Road, Jiangning Binjiang Economic Development Zone, Nanjing City, Jiangsu Province, 210000 Patentee after: Middle nuclear-plant Nanjing Co., Ltd Address before: Xigu District 730060 Gansu city of Lanzhou province and the new road No. 1 Patentee before: China Power Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20200123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |