CN103691260A - Heat recovery water-saving system for desulfuration by wet process and process thereof - Google Patents
Heat recovery water-saving system for desulfuration by wet process and process thereof Download PDFInfo
- Publication number
- CN103691260A CN103691260A CN201310718023.1A CN201310718023A CN103691260A CN 103691260 A CN103691260 A CN 103691260A CN 201310718023 A CN201310718023 A CN 201310718023A CN 103691260 A CN103691260 A CN 103691260A
- Authority
- CN
- China
- Prior art keywords
- slurry
- heat
- temperature
- water
- pump
- Prior art date
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 35
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 52
- 238000010521 absorption reaction Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 230000023556 desulfurization Effects 0.000 claims description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- 239000003245 coal Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000004087 circulation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a heat recovery water-saving system for desulfuration by a wet process and a process method thereof. The process method comprises the following steps: carrying out heat exchange on waste heat of slurry of an absorption tower in a conventional wet gas desulphurization device through an external heat exchanger, wherein the temperature of the slurry in the tower is reduced; pumping the slurry in the tower at lower temperature to a spraying layer through a circulating pump; and continuously carrying out gas-liquid contact in the desulphurization process. The lower temperature of the desulphurization slurry is beneficial for improving the desulphurization efficiency and reducing the liquid-gas ratio in the desulphurization process; the temperature of the desulphurization smoke is reduced from about 130 DEG C to about 40 DEG C similarly, smoke heat is conducted to circular slurry and recovered by the external heat exchanger, and the evaporated water in the smoke temperature reducing process is reduced, so that the water consumption in a wet desulphurization system is reduced; and the purposes of saving energy consumption and water consumption for users as well as lowering the operational cost are realized. Meanwhile, through heat transfer temperature rise of the external heat exchanger, the cooling circular water is about 27 DEG C, and hot water at higher temperature or low pressure steam over 120 DEG C through hot pump treatment is provided for users.
Description
Technical Field
The invention relates to the technical field of wet desulphurization, in particular to a heat recovery water-saving system in wet desulphurization engineering and a process thereof.
Background
With the issuance of new atmospheric pollutant emission standards of thermal power plants, the emission standards of sulfur dioxide in flue gas are further improved, and the supply of coal of domestic power plants is short, so that the deviation of the components of coal quality of coal actually used by a plurality of power plants from the original design value is large, the concentration of sulfur dioxide at the inlet of a desulfurization device is far beyond the original design value, the original desulfurization device cannot meet the requirement of environmental protection, in order to ensure the safe and stable operation of a desulfurization system and meet the requirement of standard emission under the condition of new coal quality, the original desulfurization device must be subjected to capacity expansion modification, various measures are taken to improve the desulfurization efficiency, at present, a heat exchanger is additionally arranged in front of the inlet of an absorption tower, the temperature of the original flue gas is reduced. In addition, the energy sources in China are deficient, the energy sources are saved, and the reutilization of redundant energy sources is urgent. Under the background, the invention provides a heat recovery water-saving process for wet desulphurization.
Disclosure of Invention
The invention aims to improve the efficiency of dehydration, reuse heat energy in the tower and save energy.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a wet flue gas desulfurization's heat recovery water saving system, includes the absorption tower, its characterized in that: also comprises n circulating pumps, a transporting and standby slurry conveying pump, a heat exchanger, a heat pump, n layers of spraying layers and a transporting and standby water pump, wherein n is more than or equal to 1,
the absorption tower is connected with the inlet and the outlet of the circulating pump through a pipeline, the inlet of the circulating pump is provided with a valve, and the absorption tower is connected with the slurry delivery pump through a pipeline and is provided with a valve; the outlet of the slurry conveying pump is connected with the heat exchanger through a pipeline, and a valve is arranged; the slurry outlet of the heat exchanger is connected with the absorption tower through a pipeline, and 2 valves are arranged; the heat exchanger is connected with the water pump through a pipeline, the valves are arranged, the heat pump is connected with the heat exchanger through a carbon steel pipeline, the valves are arranged, and the water pump is connected with the heat pump through a pipeline and the valves are arranged.
Wherein, the number of the circulating pumps is determined according to the requirements of the original desulfurization process, and generally 3 circulating pumps are used.
A heat recovery water-saving process for wet desulphurization comprises the following steps:
the first step is as follows: a slurry delivery pump arranged beside the absorption tower pumps high-temperature slurry in the tower into a heat exchanger, and the slurry after heat exchange by the heat exchanger is cooled and then enters the tower, so that the slurry in the tower is changed into low-temperature slurry;
the second step is that: the low-temperature slurry is pumped into a spraying layer of the absorption tower by a circulating pump, and the low-temperature slurry is contacted with high-temperature raw flue gas entering the absorption tower to carry out heat exchange and SO2 absorption processes, SO that the aim of desulfurization is fulfilled, and the evaporation of water is reduced;
the third step: the water which is exchanged heat by the heat exchanger is pumped into a heat pump by a water pump, and then hot water or low-pressure steam is produced by the heat pump for users to use; the water cooled by the heat pump (about 20 ℃) returns to the heat exchanger for heat exchange again.
Wherein the temperature of the high-temperature slurry is 38-50 ℃.
Wherein the temperature of the low-temperature slurry is 30-34 ℃.
Wherein the temperature of the water which is subjected to heat exchange by the heat exchanger is 25-28 ℃.
Wherein the temperature of the low-pressure steam is 100-120 ℃.
Wherein the temperature of the water cooled by the heat pump is 18-20 ℃.
The beneficial effects of the invention are summarized as follows:
1. the water supplement amount of the absorption tower is reduced, and the operation cost is saved.
2. Hot water or low-pressure steam required by users can be produced.
3. Improve the desulfurization efficiency
4. The original flue does not need to be protected from corrosion, and the construction cost is reduced.
5. The process system has simple equipment, smooth process and stable operation.
Drawings
The attached drawing is a process system flow schematic diagram of the invention.
Detailed Description
The process implementation of the invention is described below with reference to the accompanying drawings:
the heat recovery process of wet desulphurization mainly comprises the following equipment: 1, an absorption tower; the number of the circulating pumps is determined according to the original desulfurization process requirement, and generally 3 circulating pumps are used; 2 slurry delivery pumps are used for one transportation and one standby; 1 heat exchanger; water pumps (2) for one machine; 1 heat pump; the number of the spray layers is determined according to the original desulfurization process.
The absorption tower is connected with an inlet and an outlet of a circulating pump through a pipeline, the inlet of the circulating pump is provided with a valve, the absorption tower is connected with a slurry delivery pump through a pipeline, and the valve is arranged; the outlet of the slurry delivery pump is connected with the heat exchanger through a pipeline, and a valve is arranged(ii) a The slurry outlet of heat exchanger is connected with absorption tower by means of pipeline, and is equipped with valve(ii) a The heat exchanger is connected with the water pump through a pipeline and is provided with a valve
The heat pump is connected with the heat exchanger through a carbon steel pipeline, and a valve is arranged
The water pump is connected with the heat pump by a pipeline and is provided with a valve
The implementation mode of the process is as follows: the above-mentioned equipments are uniformly distributed near the absorption tower, and its technological process can be implemented by 3 large circulations.
The absorption tower is connected with the slurry delivery pump and is connected with the slurry delivery pump through a rubber lining pipeline, and a valve is arranged; the delivery pump (outlet) is connected with the heat exchanger (outlet) by a rubber lining pipeline, and a valve is arranged
(ii) a And pumping the slurry in the absorption tower into a heat exchanger (IV) through a slurry delivery pump. The slurry outlet of the heat exchanger is also connected with the absorption tower by a rubber lining pipeline, and a valve is arrangedAnd the heat-exchanged slurry returns to the absorption tower at about 32 ℃.
The temperature of the slurry in the absorption tower is about 40 ℃ generally, the slurry is pumped into a heat exchanger through a slurry delivery pump, the slurry with higher temperature is converted into low-temperature slurry (about 32 ℃) and is recycled into the absorption tower, the low-temperature slurry is pumped into a spray layer in the absorption tower through a circulating pump, and the flue gas is fully cooled, so that the water supplement amount used for reducing the temperature of the flue gas at the inlet of the absorption tower from about 130 ℃ to about 40 ℃ is reduced, and the operation cost is reduced.
The inlet and outlet of the circulating pump are connected with the absorption tower through a rubber lining pipeline, the inlet of the circulating pump is provided with a valve, slurry of the absorption tower at about 32 ℃ is pumped into the spray layer by the circulating pump, and contacts with the original flue gas at the inlet of the absorption tower to perform heat exchange and SO2 absorption. Thereby achieving the aim of desulfurization.
The working mechanism of flue gas desulfurization is the interphase mass transfer process of transferring SO2 from a gas phase to a liquid phase, and the mass transfer rate is a key index for determining the desulfurization efficiency. The important factor influencing the mass transfer rate is the temperature, the lower the temperature is, the more favorable the dissolving and absorption of SO2 is, and the optimal temperature of the slurry in the absorption tower is considered comprehensively about 30-50 ℃. The process can adjust the temperature of the circulating slurry in the absorption tower by adjusting the heat exchange amount of the external heat exchanger, namely adjusting the flow rate of the circulating cooling water or adjusting the temperature of the circulating cooling water, so that the temperature of the slurry in the absorption tower reaches the optimal value, and the desulfurization efficiency is favorably improved.
The heat exchanger (IV) is connected with the water pump (IV) by a carbon steel pipeline, and a valve is arranged
The water pump is connected with the heat pump by a carbon steel pipeline and is provided with a valve
The heat-exchanged water (about 27 ℃) is pumped into a heat pump by a water pump, and hot water with different temperatures or low-pressure steam with about 120 ℃ is produced by the heat pump. The heat pump is connected with the heat exchanger through a carbon steel pipeline and is provided with a valve
The water cooled in this way (about 20 ℃) returns to the heat exchangerThe rows are again heat exchanged. The temperature of the circulating cooling water (about 20 ℃) in the heat exchanger is raised to about 27 ℃ after heat exchange, and then the circulating cooling water is circulated to the heat pump through the water pump and produces hot water or low-pressure steam at the temperature required by a user. At present, in some domestic wet desulphurization processes, a heat exchanger is additionally arranged in front of an inlet of an absorption tower, so that the temperature of flue gas is reduced, and the aims of saving water and improving the desulphurization efficiency are fulfilled. In comparison, the invention has the unique advantages of not only achieving the purposes of saving water and improving the desulfurization efficiency, but also providing a heat source required by users.
The original flue in front of the inlet of the absorption tower does not need to be protected from corrosion, so that the construction cost is reduced, and the construction period is shortened. The process of adding the heat exchanger before the inlet of the absorption tower is adopted, the original flue gas is reduced to 80-90 ℃ from about 130 ℃, so that the flue between the outlet of the heat exchanger and the inlet of the absorption tower needs to be subjected to antiseptic treatment, the flue at the inlet of the absorption tower is not changed in the process, and the flue still belongs to a high-temperature flue, so that the antiseptic treatment is not needed, the cost is reduced, and the construction period is shortened.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A heat recovery water saving system of wet flue gas desulfurization, includes absorption tower (r), its characterized in that: bag for returning
Comprises n circulating pumps, a slurry conveying pump, a heat exchanger, a heat pump, and n
A layer spraying layer and a water pump at once, wherein n is more than or equal to 1; wherein,
the absorption tower is connected with an inlet and an outlet of a circulating pump through a pipeline, the inlet of the circulating pump is provided with a valve, the absorption tower is connected with a slurry delivery pump through a pipeline, and the valve is arranged; slurry delivery pump outlet and heat exchangerPipe connection between two valves
(ii) a The slurry outlet of heat exchanger is connected with absorption tower by means of pipeline, and is equipped with valve
(ii) a The heat exchanger is connected with the water pump through a pipeline and is provided with a valve
The heat pump is connected with the heat exchanger through a carbon steel pipeline, and a valve is arranged
The water pump is connected with the heat pump by a pipeline and is provided with a valve
。
2. The wet desulfurization heat recovery water saving system according to claim 1, characterized in that:
the number of the circulating pumps is determined according to the original desulfurization process requirement, and generally 3 circulating pumps are used.
3. A heat recovery water-saving process for wet desulphurization is characterized in that: the method comprises the following steps:
the first step is as follows: the slurry conveying pump arranged beside the absorption tower drives the high-temperature slurry in the tower into the heat exchanger, and the temperature of the slurry after heat exchange by the heat exchanger is reduced and then the slurry enters the tower, so that the slurry in the tower is changed into low-temperature slurry;
the second step is that: pumping the low-temperature slurry into a spray layer of the absorption tower by a circulating pump, and enabling the low-temperature slurry to be in contact with high-temperature raw flue gas entering the absorption tower to perform heat exchange and an absorption process of SO2, SO that the aim of desulfurization is achieved, and evaporation of water is reduced;
the third step: pumping the water after heat exchange in the heat exchanger into a heat pump, and producing hot water or low-pressure steam for users; the water cooled by the heat pump (20 deg.C) returns to the heat exchanger to exchange heat again.
4. The wet desulfurization heat recovery water-saving process according to claim 3, characterized in that:
the temperature of the high-temperature slurry is 38-50 ℃.
5. The wet desulfurization heat recovery water-saving process according to claim 3, characterized in that:
the temperature of the low-temperature slurry is 30-34 ℃.
6. The wet desulfurization heat recovery water-saving process according to claim 3, characterized in that:
the temperature of the water which is subjected to heat exchange by the heat exchanger is 25-28 ℃.
7. The wet desulfurization heat recovery water-saving process according to claim 3, characterized in that:
the temperature of the low-pressure steam is 100-120 ℃.
8. The wet desulfurization heat recovery water-saving process according to claim 3, characterized in that:
the temperature of the water cooled by the heat pump is 18-20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718023.1A CN103691260B (en) | 2013-12-23 | 2013-12-23 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718023.1A CN103691260B (en) | 2013-12-23 | 2013-12-23 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691260A true CN103691260A (en) | 2014-04-02 |
| CN103691260B CN103691260B (en) | 2017-04-12 |
Family
ID=50353021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718023.1A Active CN103691260B (en) | 2013-12-23 | 2013-12-23 | Heat recovery water-saving system for desulfuration by wet process and process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691260B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120714A (en) * | 2017-05-18 | 2017-09-01 | 大连理工大学 | A kind of thermal power plant boiler fume afterheat is used for the whole yearization comprehensive utilization energy conserving system of central heating or heating boiler feed water |
| CN107178814A (en) * | 2017-05-18 | 2017-09-19 | 大连理工大学 | A kind of thermal power plant boiler fume afterheat is used for the energy conserving system of central heating |
| CN107655021A (en) * | 2017-10-31 | 2018-02-02 | 中国华能集团清洁能源技术研究院有限公司 | A method and system for recovering waste heat from flue gas using an absorption heat pump |
| CN107684817A (en) * | 2016-08-03 | 2018-02-13 | 天津华赛尔传热设备有限公司 | A kind of flue gas desulfurization process system |
| CN108106450A (en) * | 2017-07-10 | 2018-06-01 | 昊姆（上海）节能科技有限公司 | The Double-working-condition smoke processing system of whole year operation |
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
| CN108392974A (en) * | 2018-05-03 | 2018-08-14 | 烟台龙源电力技术股份有限公司 | A kind of system reducing thermal power plant's white cigarette plumage steam discharge capacity |
| CN108554139A (en) * | 2018-03-17 | 2018-09-21 | 北京中能诺泰节能环保技术有限责任公司 | Flue gas processing device and wet desulfurization system |
| CN108654353A (en) * | 2017-04-01 | 2018-10-16 | 天津华赛尔传热设备有限公司 | A kind of smoke processing system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126430A (en) * | 1980-03-07 | 1981-10-03 | Kawasaki Heavy Ind Ltd | Wet type stack gas desulfurization method |
| CN201940150U (en) * | 2010-10-14 | 2011-08-24 | 中国石油化工股份有限公司 | Oil and gas absorption system capable of improving recovery rate |
| CN203253350U (en) * | 2013-05-11 | 2013-10-30 | 山东中玻节能环保发展有限公司 | Renewable organic amine circulating desulfurization purifying tower |
| CN203323218U (en) * | 2013-06-13 | 2013-12-04 | 烟台龙源电力技术股份有限公司 | Boiler flue gas waste heat heating system |
-
2013
- 2013-12-23 CN CN201310718023.1A patent/CN103691260B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126430A (en) * | 1980-03-07 | 1981-10-03 | Kawasaki Heavy Ind Ltd | Wet type stack gas desulfurization method |
| CN201940150U (en) * | 2010-10-14 | 2011-08-24 | 中国石油化工股份有限公司 | Oil and gas absorption system capable of improving recovery rate |
| CN203253350U (en) * | 2013-05-11 | 2013-10-30 | 山东中玻节能环保发展有限公司 | Renewable organic amine circulating desulfurization purifying tower |
| CN203323218U (en) * | 2013-06-13 | 2013-12-04 | 烟台龙源电力技术股份有限公司 | Boiler flue gas waste heat heating system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684817A (en) * | 2016-08-03 | 2018-02-13 | 天津华赛尔传热设备有限公司 | A kind of flue gas desulfurization process system |
| CN108654353A (en) * | 2017-04-01 | 2018-10-16 | 天津华赛尔传热设备有限公司 | A kind of smoke processing system and method |
| CN107120714B (en) * | 2017-05-18 | 2019-08-09 | 大连理工大学 | A year-round comprehensive utilization energy-saving system |
| CN107178814A (en) * | 2017-05-18 | 2017-09-19 | 大连理工大学 | A kind of thermal power plant boiler fume afterheat is used for the energy conserving system of central heating |
| CN107120714A (en) * | 2017-05-18 | 2017-09-01 | 大连理工大学 | A kind of thermal power plant boiler fume afterheat is used for the whole yearization comprehensive utilization energy conserving system of central heating or heating boiler feed water |
| CN108106450A (en) * | 2017-07-10 | 2018-06-01 | 昊姆（上海）节能科技有限公司 | The Double-working-condition smoke processing system of whole year operation |
| CN108106450B (en) * | 2017-07-10 | 2023-03-10 | 昊姆（上海）节能科技有限公司 | Annual operating dual-working-condition flue gas treatment system |
| CN107655021A (en) * | 2017-10-31 | 2018-02-02 | 中国华能集团清洁能源技术研究院有限公司 | A method and system for recovering waste heat from flue gas using an absorption heat pump |
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
| CN108159868B (en) * | 2018-03-15 | 2024-04-26 | 烟台龙源电力技术股份有限公司 | Desulfurization waste water and chimney white smoke plume cooperative treatment system |
| CN108554139A (en) * | 2018-03-17 | 2018-09-21 | 北京中能诺泰节能环保技术有限责任公司 | Flue gas processing device and wet desulfurization system |
| CN108392974A (en) * | 2018-05-03 | 2018-08-14 | 烟台龙源电力技术股份有限公司 | A kind of system reducing thermal power plant's white cigarette plumage steam discharge capacity |
| CN108392974B (en) * | 2018-05-03 | 2024-05-14 | 烟台龙源电力技术股份有限公司 | System for reducing emission of white smoke plume water vapor of thermal power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691260B (en) | 2017-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103691260B (en) | Heat recovery water-saving system for desulfuration by wet process and process thereof | |
| CN102121392B (en) | Heat-radiating, recovering and cooling system for mine | |
| CN219559573U (en) | Hot water recycling system for vinyl chloride synthesis reaction | |
| CN114109545A (en) | A peak shaving system and peak shaving method for recovering the waste heat at the cold end of a thermal power plant | |
| CN115624854A (en) | A flue gas carbon capture system and method | |
| CN108981221A (en) | The system and method to be freezed using steam condensate waste heat | |
| CN205065867U (en) | Indirect air cooling unit steam turbine steam exhaust waste heat recovery is used for heat supply network circulation water heating system | |
| CN203620271U (en) | High-efficiency ethylene glycol product waste heat recovery device | |
| CN202692526U (en) | Overlapped refrigeration circulating high-temperature water source heat pump unit | |
| CN101520252B (en) | A New Process for Improving the Comprehensive Utilization Rate of Low-temperature Potential Heat Energy | |
| CN204730508U (en) | A kind ofly apply the energy-conservation device of lithium bromide | |
| CN104651004A (en) | Energy-saving coal-based natural gas process | |
| CN204787407U (en) | System is used multipurposely to coal industry device waste heat | |
| CN211159192U (en) | Processing apparatus of acid water is retrieved to claus sulphur | |
| CN208042266U (en) | Closed circulation system for heating by using high-temperature hot water at upper section of primary cooler | |
| CN102589181B (en) | Method and device for recycling low temperature exhaust heat through carbon dioxide humidifying | |
| CN208732629U (en) | A kind of system for producing liquefied ammonia using soda manufacture process steam condensation fluid residual heat | |
| CN204174133U (en) | A kind of device utilizing urea plant to reclaim melamine tail gas | |
| CN108151112A (en) | A closed cycle method for heating with high-temperature hot water in the upper section of the primary cooler | |
| CN202039044U (en) | Semi-water gas cooling system with lithium bromide unit and capable of generating cold water as byproduct | |
| CN201678201U (en) | Low-sulphur fuel oil storage tank heating device | |
| CN207738712U (en) | Hot water circulating system for vacuum potassium carbonate desulfurization by using waste heat of raw gas | |
| CN204853629U (en) | Be used for recirculated cooling water waste heat utilization system of thermal power factory | |
| CN107903950A (en) | A hot water circulation system for vacuum potassium carbonate desulfurization with waste heat from raw coal gas | |
| CN215295502U (en) | Circulating cooling water waste heat utilization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100036 Beijing, Haidian District, west of the eight mile road, No. 69, people's Political Consultative Conference building, floor 9 Applicant after: BEIJING SPC ENVIRONMENT PROTECTION TECH CO., LTD. Address before: 100036 Beijing, Haidian District, west of the eight mile road, No. 69, people's Political Consultative Conference building, floor 9 Applicant before: Beijing SPC Environment Protection Tech Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BEIJING SPC ENVIRONMENT PROTECTION TECH CO., LTD. TO: BEIJING SPC ENVIRONMENT PROTECTION TECH CO., LTD |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |