CN201760225U - Site treating and using system of natural gas and gas fume - Google Patents
Site treating and using system of natural gas and gas fume Download PDFInfo
- Publication number
- CN201760225U CN201760225U CN2010202989379U CN201020298937U CN201760225U CN 201760225 U CN201760225 U CN 201760225U CN 2010202989379 U CN2010202989379 U CN 2010202989379U CN 201020298937 U CN201020298937 U CN 201020298937U CN 201760225 U CN201760225 U CN 201760225U
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- gas
- heat pump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
A site treating and using system of natural gas and gas fume relates to gas, cool and thermal power triple supply technology and comprises a gas internal-combustion engine set of a generator, a waste heat direct-fired machine, a spray absorber and a saturator that are sequentially connected, wherein the saturator is connected with an agitation tank; the spray absorber is connected with a heat pump evaporator and comprises a sprayer, a baffle plate, a demister and an absorption water tank; the absorption water tank is connected with a neutralizing water tank; the heat pump evaporator is connected with a heat pump compressor and a condenser; the saturator is connected with the agitation tank through a gas fume bypass three-way valve, and the agitation tank is connected with a concentrated solution tank and provided with a gas agitating vane and a solution agitating vane; the gas fume passes through a tower to be in contact with low temperature water and release heat through condensation; sulfur dioxide and nitric oxide are dissolved in circulating condensate water in alkalinity, constantly discharged into the neutralizing water tank and added with alkali, and then discharged into a sewage conduit; the circulating condensate water and the refrigerant at the side of the heat pump evaporator exchange heat; and after upgraded by a heat pump, the condensate water is used as domestic hot water. Treated by the spray absorber, the gas fume is in full contact with ammonia water solution after passing through the agitation tank to produce thick ammonium hydrogen carbonate solution. Ammonia fertilizer can be obtained after heated-air drying. The site treating and using system is a process system with high efficiency and extremely low discharge under control.
Description
Technical field
The utility model relates to the innoxious total efficiency of a kind of natural gas and utilizes system, high-efficient energy-saving environment friendly, and the used heat utilization and the flue gas that are specifically related to natural gas cold, heat and electricity triple supply energy resource system separate the technical field that combines with gas treatment.
Background technology
The combustion gas cold, heat and electricity triple supply, be CCHP (Combined Cooling, Heating and Power), with the natural gas is that primary energy drives gas turbine or the operation of oil-electric engine group, fume afterheat after the generating is as waste heat boiler or the waste heat absorption type air-conditioner unit high temperature heat source to user's heat supply, cooling, the flue gas of discharging from waste heat boiler or waste heat absorption type air-conditioner unit also further recovery waste heat be used to the user that the domestic hot-water is provided, the cascade utilization of realization natural gas energy resource.
Waste heat utilization technology, the exhaust gas temperature of gas-fired equipment had both been wasted the energy greater than 150 ℃, caused the serious environmental thermal pollution again.Comprise 15% steam behind the combustion of natural gas, this part steam is in superheat state, can not condense into liquid water and emit the latent heat of vaporization in high-temperature flue.This part latent heat enormous amount in the flue gas, account for natural gas low heat valve about 6%, waste very surprising.Adopt technology such as full heat regenerator, water cooling tower can realize water vapor condensation, reduce primary energy consumption.
The technical method of gas separation mainly contains: Physical Absorption method, physisorphtion, chemical absorption method, chemiadsorption, membrane separation process, recombination method etc.Gas fixedly utilizes technology, exactly certain gas is stored in the somewhere in some way, and does not allow gas freely spread.
The utility model content
The utility model provides a kind of natural gas flue gas to handle and utilize system on the spot, restructures the use of energy, and effectively reduces greenhouse gas emissions, effectively improves the process system of gas utilization.
For this reason, this novel technical scheme that provides, system is handled and utilized to a kind of natural gas flue gas on the spot, and it comprises generator gas internal-combustion engine group, waste heat direct combustion machine and spray absorber and the saturator that connects successively, saturator is connected with tank diameter, and spray absorber is connected with evaporator with heat pump.
Above-mentioned spray absorber comprises sprayer, deflection plate, demister and absorbs the pond.
Be connected with the spray water pump between above-mentioned evaporator with heat pump and the spray absorber.
Above-mentioned absorption pond is connected with neutralizing water tank.
Above-mentioned evaporator with heat pump is connected with heat pump compressor and condenser.
Above-mentioned saturator connects tank diameter by the gas bypass triple valve, and the tank diameter upper end is provided with the gas stirring vane, and the lower end is provided with the solution stirring vane, connects the concentrated solution pond.
System is handled and utilized to the natural gas flue gas that the utility model provides on the spot, after the gas turbine combustion natural gas power, behind the flue gas process spray absorber that waste heat direct combustion machine utilizes, by tower and the heat release of water at low temperature condensation by contact, sulfur dioxide, nitrogen oxide are dissolved in the circulating condensing water of meta-alkalescence.The accumulation of circulating condensing water constantly enters neutralizing water tank, and neutralizing water tank enters urban sewage pipe after adding alkali.Continuous and the evaporator with heat pump side cold-producing medium heat exchange of circulating condensing water, this part heat are used heat as domestic hot-water or other after heat pump promotes.The flue gas of handling through spray absorber does not guarantee it is saturated flue gas, so need to obtain saturated flue gas through the saturator smoke treatment before the solid carbon dioxide process.After saturated flue gas enters tank diameter, fully contact, produce denseer ammonium bicarbonate solution relatively with ammonia spirit.Ammonium bicarbonate soln obtains ammonia fertilizer after centrifugation, heated-air drying, can be used for agricultural fertilizer.System synthesis above technical characterstic, the relevant device technical characteristic that has been coupled realizes the utilization of natural gas high thermal efficiency, the combustion of natural gas discharging realizes harmless treatment.Realize accurate technology controlling and process.
Below the utility model is described in more detail.
Description of drawings
Fig. 1 is the structure principle chart that system was handled and utilized to the natural gas flue gas on the spot.
Among the figure: the 1-generator; 2-gas turbine or gas internal-combustion engine; 3-waste heat direct combustion machine; The 4-sprayer; The 5-deflection plate; The 6-demister; 7-absorbs the pond; 8-sprays water pump; The 9-evaporimeter; 10-heat pump compressor 11-condenser; The 12-electric expansion valve; The 13-saturator; The 14-neutralizing water tank; 15-gas bypass triple valve 16-gas stirring vane; The 17-tank diameter; 18-solution stirring vane; 19-concentrated solution pond.
The specific embodiment
Referring to Fig. 1, system is handled and utilized to the natural gas flue gas on the spot, it comprises generator gas internal-combustion engine group 1,2, waste heat direct combustion machine 3 and spray absorber and the saturator 13 that connects successively, and saturator 13 is connected with tank diameter 17, and spray absorber is connected with evaporator with heat pump 9.Spray absorber comprises sprayer 4, deflection plate 5, demister 6 and absorbs pond 7.Be connected with spray water pump 8 between evaporator with heat pump 9 and the spray absorber.Absorb pond 7 and be connected with neutralizing water tank 14.Evaporator with heat pump 9 is connected with heat pump compressor 10, connects condenser 11 by electric expansion valve 12.Saturator 13 connects tank diameter 17 by gas bypass triple valve 15, and tank diameter 17 upper ends are provided with gas stirring vane 16, and the lower end is provided with solution stirring vane 18, connects concentrated solution pond 19.
System's typical process flow is: by the generating of gas turbine (or internal combustion engine) gas-firing acting drawing generator, the generating equipment exhaust gas temperature comprises N greater than 450 ℃ in the flue gas earlier
2Account for 68%, CO
2Account for 11%, H
2O accounts for 16%, O
2Account for 4% and small amounts of sulfur dioxide and nitrogen oxide, carry out heat supply, cooling by waste heat equipment utilization gas turbines such as waste heat boiler, waste heat direct combustion machine smoke evacuation (internal combustion engine smoke evacuation and jacket water) then, the heat loss due to exhaust gas of the flue gas of system is about 8%-16% after the waste heat equipment utilization, total heat of effectively utilizing is about 80%-91%, and exhaust gas temperature is generally all greater than 150 ℃; 150 ℃ of flue gases can reclaim with respect to also the have an appointment equivalent heat of 6%-7% of air themperature, adopt condensation flue gas heat recovery technology and in conjunction with heat pump techniques, reclaim efficient heat in the smoke evacuation fully, make system's overall thermal efficiency greater than 95%, meanwhile, sulfur in smoke, partial CO 2, nitrogen oxide are dissolved in the flue gas recirculation condensate water; Flue gas gas concentration lwevel after heat recovery system is handled is so higher, adopt chemical absorption process that carbon dioxide is dissolved in the ammonia spirit, with after the treated separation of concentrated solution, the output nitrogen fertilizer in agriculture has been realized the curing of carbon dioxide and has been produced additional economic benefit then.Realize accurate technology controlling and process.
Claims (6)
1. system is handled and utilized to a natural gas flue gas on the spot, it is characterized in that: it comprises generator gas internal-combustion engine group, waste heat direct combustion machine and spray absorber and the saturator that connects successively, saturator is connected with tank diameter, and spray absorber is connected with evaporator with heat pump.
2. system is handled and utilized to natural gas flue gas according to claim 1 on the spot, it is characterized in that: described spray absorber comprises sprayer, deflection plate, demister and absorbs the pond.
3. system is handled and utilized to natural gas flue gas according to claim 2 on the spot, it is characterized in that: be connected with the spray water pump between described evaporator with heat pump and the spray absorber.
4. handle and utilize system on the spot according to claim 2 or 3 described natural gas flue gases, it is characterized in that: described absorption pond is connected with neutralizing water tank.
5. system is handled and utilized to natural gas flue gas according to claim 1 on the spot, it is characterized in that: described evaporator with heat pump is connected with heat pump compressor and condenser.
6. system is handled and utilized to natural gas flue gas according to claim 1 on the spot, it is characterized in that: described saturator connects tank diameter by the gas bypass triple valve, the tank diameter upper end is provided with the gas stirring vane, and the lower end is provided with the solution stirring vane, connects the concentrated solution pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202989379U CN201760225U (en) | 2010-08-20 | 2010-08-20 | Site treating and using system of natural gas and gas fume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202989379U CN201760225U (en) | 2010-08-20 | 2010-08-20 | Site treating and using system of natural gas and gas fume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760225U true CN201760225U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202989379U Expired - Lifetime CN201760225U (en) | 2010-08-20 | 2010-08-20 | Site treating and using system of natural gas and gas fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721538A (en) * | 2013-12-30 | 2014-04-16 | 清华大学 | Integrated treatment and utilizing device for recovering and denitrating smoke waste heat and condensate water of natural gas |
| CN104913410A (en) * | 2014-03-10 | 2015-09-16 | 广东金贝节能科技有限公司 | Water tower applied to water source heat pump air conditioner |
| CN109432988A (en) * | 2018-05-24 | 2019-03-08 | 国能科创节能技术（北京）有限公司 | Flue gas two stage desulfurizing and purifying system |
-
2010
- 2010-08-20 CN CN2010202989379U patent/CN201760225U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721538A (en) * | 2013-12-30 | 2014-04-16 | 清华大学 | Integrated treatment and utilizing device for recovering and denitrating smoke waste heat and condensate water of natural gas |
| CN104913410A (en) * | 2014-03-10 | 2015-09-16 | 广东金贝节能科技有限公司 | Water tower applied to water source heat pump air conditioner |
| CN104913410B (en) * | 2014-03-10 | 2018-01-16 | 广东金贝节能科技有限公司 | A kind of water tower applied to water source heat pump air-conditioner |
| CN109432988A (en) * | 2018-05-24 | 2019-03-08 | 国能科创节能技术（北京）有限公司 | Flue gas two stage desulfurizing and purifying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |