CN205392052U - Contain two -stage phase transition coalescence combined type deep purification system - Google Patents
Contain two -stage phase transition coalescence combined type deep purification system Download PDFInfo
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- CN205392052U CN205392052U CN201620151923.1U CN201620151923U CN205392052U CN 205392052 U CN205392052 U CN 205392052U CN 201620151923 U CN201620151923 U CN 201620151923U CN 205392052 U CN205392052 U CN 205392052U
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Abstract
The utility model provides a contain two -stage phase transition coalescence combined type deep purification system, it is inside to set gradually first order diphase rectification coalescence according to flue gas flow direction and puies forward effect system, first layer automatic spraying system, deep purification system, second floor automatic spraying system, second level diphase rectification coalescence and carry effect system and third layer automatic spraying system. Wherein, diphase rectification coalescence is put forward the effect system and is used for the water in the coalescence flue gas, carries effect system below at first order diphase rectification coalescence and is provided with the collecting tank, and flue gas flow direction is opposite with the flow direction of the coalescence liquid drop that the collecting tank was collected. The utility model discloses compound two -stage phase transition coalescence system of system, the relict particulate matter that condenses of high -efficient entrapment flue gas prevents effectively that the liquid drop secondary from carrying, eliminates " gypsum rain ", the water in the flue gas is retrieved to the soluble pollutant in the desorption flue gas etc. In coordination, has improved chimney " white cigarette " phenomenon greatly.
Description
Technical field
This utility model relates to a kind of containing two-stage phase transformation coalescence combined type advanced purification system, belongs to power industry field of environment protection.
Background technology
By the end of the year 2014, thermal power plant's Air Pollutants Emissions rapid decrease, it is achieved that the maximum range of decrease since Eleventh Five-Year Plan.Wherein, electric power smoke discharge amount is down to 980,000 tons in 2014, unit thermoelectricity 0.23 gram/kilowatt hour of generated energy smoke discharge amount by about 4,000,000 tons of 2005.Precipitator, sack cleaner, electric-bag complex dust collector account for the proportion respectively 77.3%, 9.0%, 13.7% of whole nation coal unit capacity.Although power industry pollution reduction achieves great achievement, but haze weather takes place frequently, and Environmental Protection Situation is sternness still, and power industry efforts at environmental protection remain emphasis and the difficult point of environmental protection work.
It is said that in general, electrostatic precipitator efficiency of dust collection can reach 99% under accidental conditions, but very limited for fine grained flue dust removal ability.The fine droplets of fine grained flue dust and a small amount of slurry spraying after wet desulfuration tower, uses existing demister can not catch at all, and enters clean flue and chimney with flue gas.The Chinese patent of ZL201520212632.4, ZL201420655999.9 provides large coal-fired power plant flue gas device for deep cleaning, can effectively solve the difficult problems such as flue dust is not up to standard of puzzlement power plant, precursor pollutant be included sulfur trioxide, sulfur dioxide, nitrogen oxides and ammonia etc. simultaneously and heavy metal Hg has Collaborative Control effect.But, first order phase change coalescence device is only set before wet-esp, and flue gas and condensing droplet down current arrangement；Coal-fired flue-gas flow velocity is higher, unavoidably drop is carried out secondary droplets, part is containing being converted into aerosol in ultra-fine serosity droplet transition process or being condensed into big droplet, " white cigarette " is formed after smoke stack emission, near plant area, sedimentation formation " gypsum rain " phenomenon is not yet solved, bring adverse effect to periphery ecological environment and resident living, flue dust qualified discharge is impacted.
On December 11st, 2015, " implementing in full coal-burning power plant's minimum discharge and reducing energy consumption programme of work " prints and distributes, it is desirable to the year two thousand twenty " all coal-fired plants possessing transformation condition in the whole nation strive realizing minimum discharge ".Program coverage relatively " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014 the year two thousand twenty) " substantially expands, east, middle part reaching standard time node also 2 to 3 years in advance.Therefore, expanding in the process enclosed in minimum discharge speed-raising, how research alleviates chimney of electric plant " white cigarette " phenomenon, thoroughly solves " gypsum rain " problem, it is achieved dust concentration discharge meets minimum discharge requirement, is one of the important content of power industry efforts at environmental protection.
Summary of the invention
The purpose of this utility model be in order to overcome in prior art flue gas to secondary droplets such as drops, the time of staying is short, react the shortcoming such as insufficient, there is provided a kind of containing two-stage phase transformation coalescence combined type advanced purification system, phase transformation coalescence device it is respectively provided with before and after wet-esp, the drop counter-flow arrangement that flue gas is collected with coalescence, while improving air flow method, effectively solve drop and aerosol soluble component secondary droplets and " gypsum rain " problem, significantly reduce chimney " white cigarette " phenomenon.
The concrete technical scheme that this utility model adopts is as follows:
A kind of containing two-stage phase transformation coalescence combined type advanced purification system, this system sets gradually according to flow of flue gas direction that the solidifying change of first order biphase rectification carries effect system, ground floor automatic sprinkler fire-extinguishing system, advanced purification system, second layer automatic sprinkler fire-extinguishing system, the solidifying change of second level biphase rectification carry effect system, third layer automatic sprinkler fire-extinguishing system, the solidifying change of first order biphase rectification carries effect system and is arranged below collecting tank.
The solidifying change of described first order biphase rectification carries effect system and biphase rectification solidifying change in the second level carries effect system, the latticed grid formed is connected for being intersected with horizontal pipeline by pipe tunnel, grid is set to monolayer or multilamellar, in pipeline, flowing has cooling medium, pipeline to be provided with cooling medium inlet and cooling medium outlet；
The solidifying change of described second level biphase rectification carries effect system, and the water in coalescence flue gas, as the water source of Formation Depth cleaning system positive plate automatically cleaning moisture film, it is not necessary to extra make-up water source, has saved operating cost.
Described ground floor automatic sprinkler fire-extinguishing system, second layer automatic sprinkler fire-extinguishing system, third layer automatic sprinkler fire-extinguishing system, mainly it is made up of nozzle, adjustment valve, delivery pump, liquid collecting storage tank, the solidifying change of first order biphase rectification is carried effect system and is rinsed by ground floor automatic sprinkler fire-extinguishing system, second layer automatic sprinkler fire-extinguishing system is rinsed for Wet-type electric dust removal system, and biphase rectification solidifying change in the second level is carried effect system and is rinsed by third layer automatic sprinkler fire-extinguishing system.
The material of described nozzle is rustless steel, and multiple nozzle arrangement form spraying layer.
Described advanced purification system, is mainly made up of cathod system, anode system and high frequency electric source.
Further, described anode system material is rustless steel, electroconductive frp or fabric.
Described collecting tank is arranged on the solidifying change of first order biphase rectification and carries below effect system, and the outlet of collecting tank is connected with liquid collecting storage tank by having the stainless steel tube at certain angle of inclination.
This utility model has the advantage that compared to existing technology
(1) compound two-stage biphase rectification coalescence system before and after advanced purification system, greatly improve airflow uniform distribution, effectively prevent the flue gas secondary droplets to drop and aerosol soluble component, the condensation particulate matter that efficiently trapping flue gas is remaining, guarantee coal-fired flue-gas dust concentration minimum discharge, effectively solve " gypsum rain " problem.
(2) flue gas flow direction and collection liquid counter-flow arrangement, extend gas residence time, and gas cleaning course of reaction is more abundant.
(3) first order and second level biphase rectification are coagulated and are become the condensed water carried in effect system collection flue gas, it is possible to originate as self-stripping system water, be greatly saved operating cost.
(4) biphase rectification solidifying change in the second level carries flue gas after effect system realizes advanced purification system is processed and again carries out biphase rectification coalescence, on the one hand fine grained and aerosol soluble component is processed again, plays and propose effect effect；Still further aspect, after two-stage two-phase coalescence combined type deep purifying processes, the water in recovered flue gas, substantially improve chimney " white cigarette " phenomenon.
Accompanying drawing explanation
Fig. 1 is that this utility model is a kind of containing two-stage phase transformation coalescence combined type advanced purification system structural representation；
In figure: the former flue gas of 1-, 2-1 flue, 2-2 goes out flue, 3-1 first order biphase rectification coalescence carries effect system, and biphase rectification coalescence in the 3-2 second level carries effect system, 4-1 nozzle, 4-2 nozzle, 4-3 nozzle, 5-advanced purification system, 6-neat stress, 7-1 regulates valve, and 7-2 regulates valve, 7-3 regulates valve, and 7-4 regulates valve, 8-delivery pump, 9-liquid collecting storage tank, 10-stainless steel tube, 11-collecting tank.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figure 1, former flue gas 1 enters to be intersected with horizontal pipeline by pipe tunnel and connects the first order biphase rectification coalescence that the latticed grid formed forms and carry effect system 3-1, flue gas is in latticed flow straightening grid flows outside, the Flow Field Distribution of uniform flue gas, cooling medium is in flow straightening grid internal flow simultaneously, steam in flue gas is due to cooling medium heat exchange, reduce flue-gas temperature and steam-laden degree, steam is condensed in the phase transformation of fine particle surface, has promoted the travel motion of fine particle.Entering advanced purification system 5 after first order biphase rectification coalescence, flue gas is charged by cathodic discharge in advanced purification system 5, collects charged drop on anode.Fine particles etc., the flue gas after advanced purification system 5 processes enters second level biphase rectification coalescence system 3-2, further improves air flow method, and the neat stress 6 after process is through chimney minimum discharge.Ground floor automatic sprinkler fire-extinguishing system is set at first order biphase rectification coalescence system 3-1, is provided above second layer automatic sprinkler fire-extinguishing system at advanced purification system 5, be provided above third layer automatic sprinkler fire-extinguishing system at second level biphase rectification coalescence system 3-2.
Flue gas is after two-stage phase transformation coalescence processes, and the water of collection is collected by collecting tank 11, automatically drains into liquid collecting storage tank 9 through stainless steel tube 10 and stores, and stainless steel tube 10 arranges certain angle of inclination.When first order biphase rectification coalescence system 3-1, second level biphase rectification coalescence system 3-2 and advanced purification system 5 are rinsed by needs; water in liquid collecting storage tank 9 is adjusted valve 7-4; it is delivered to ground floor self-stripping system, second layer self-stripping system, third layer self-stripping system by delivery pump 8; it is adjusted valve 7-1 respectively; regulate valve 7-2, regulate valve 7-3; sprayed by nozzle 4-1,4-2,4-3; can be implemented in regular on-line rinsing under non-stop-machine condition, it is prevented that the solidifying change of biphase rectification proposes effect system and advanced purification system fouling.
Claims (8)
1. one kind containing two-stage phase transformation coalescence combined type advanced purification system, it is characterized in that, this internal system sets gradually first order biphase rectification coalescence according to flow of flue gas direction and carries effect system, ground floor automatic sprinkler fire-extinguishing system, advanced purification system, second layer automatic sprinkler fire-extinguishing system, second level biphase rectification coalescence puies forward effect system and third layer automatic sprinkler fire-extinguishing system, wherein, biphase rectification coalescence carries effect system for the water in coalescence flue gas, carry effect system at described first order biphase rectification coalescence and be arranged below collecting tank, flow of flue gas direction is contrary with the flow direction of the coalescence drop that collecting tank is collected；First order biphase rectification coalescence is carried effect system and is rinsed by described ground floor automatic sprinkler fire-extinguishing system, advanced purification system is rinsed by described second layer automatic sprinkler fire-extinguishing system, and biphase rectification solidifying change in the second level is carried effect system and is rinsed by described third layer automatic sprinkler fire-extinguishing system.
2. one according to claim 1 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterized in that, it is intersected with horizontal pipeline by pipe tunnel to connect the latticed grid formed that described biphase rectification coalescence carries effect system, grid is set to monolayer or multilamellar, in pipeline, flowing has cooling medium, pipeline to be provided with cooling medium inlet and cooling medium outlet.
3. one according to claim 1 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterised in that described automatic sprinkler fire-extinguishing system includes the spraying layer and the adjustment valve that are formed by multiple nozzle arrangement.
4. one according to claim 3 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterised in that the material of described nozzle is rustless steel.
5. one according to claim 1 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterized in that, the coalescence drop that described collecting tank is collected enters liquid collecting storage tank by pipeline, flows to each automatic sprinkler fire-extinguishing system as water source again through adjustment valve and delivery pump.
6. one according to claim 5 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterised in that described collecting tank is pyramid type, is connected with liquid collecting storage tank by stainless steel tube.
7. one according to claim 1 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterised in that described advanced purification system includes cathod system, anode system and high frequency electric source.
8. one according to claim 7 is containing two-stage phase transformation coalescence combined type advanced purification system, it is characterised in that described anode system material is rustless steel, fiberglass or fabric.
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| CN201620151923.1U CN205392052U (en) | 2016-02-29 | 2016-02-29 | Contain two -stage phase transition coalescence combined type deep purification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110853A (en) * | 2016-08-29 | 2016-11-16 | 西安热工研究院有限公司 | The system and method for wet desulphurization device phase transformation reunion cooperation-removal fine particle |
| CN109482033A (en) * | 2018-12-17 | 2019-03-19 | 中国科学院过程工程研究所 | A kind of flue gas dehumidifying dust-extraction unit |
-
2016
- 2016-02-29 CN CN201620151923.1U patent/CN205392052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110853A (en) * | 2016-08-29 | 2016-11-16 | 西安热工研究院有限公司 | The system and method for wet desulphurization device phase transformation reunion cooperation-removal fine particle |
| CN109482033A (en) * | 2018-12-17 | 2019-03-19 | 中国科学院过程工程研究所 | A kind of flue gas dehumidifying dust-extraction unit |
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