CN203916389U - Low-temperature flue gas synchronized desulfuring and denitrifying equipment - Google Patents
Low-temperature flue gas synchronized desulfuring and denitrifying equipment Download PDFInfo
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- CN203916389U CN203916389U CN201420211074.5U CN201420211074U CN203916389U CN 203916389 U CN203916389 U CN 203916389U CN 201420211074 U CN201420211074 U CN 201420211074U CN 203916389 U CN203916389 U CN 203916389U
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Abstract
The utility model belongs to desulphurization denitration apparatus field, relate in particular to a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment, it is characterized in that: one end of described flue heat pipe is inserted in described flue tube and its other end is inserted in described heating tank, the exhanst gas outlet of described flue tube is connected by pipeline with the entrance of dust removal filter, the entrance of described gas-liquid separator A is connected by pipeline with the outlet of described dust removal filter, the gas vent of described gas-liquid separator A is connected by pipeline with the entrance of gas-liquid separator B, the entrance of described gas-liquid separator C is connected by pipeline with the gas vent of described gas-liquid separator B, the gas vent of described gas-liquid separator C is connected by pipeline with the entrance of anti-down cucurbitula, the outlet of described anti-down cucurbitula is connected by pipeline with alkali liquor absorption tank, the top of described gas-liquid separator A is fixed with cooler A, the top of gas-liquid separator B is fixed with cooler B, the top of gas-liquid separator C is fixed with cooler C.
Description
Technical field
The utility model belongs to desulphurization denitration apparatus field, relates in particular to a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment.
Background technology
In the flue gas that industrial production produces, conventionally contain the acid contaminants such as a large amount of sulfur dioxide, sulfur trioxide, nitrogen dioxide, sulfur dioxide, sulfur trioxide, nitrogen dioxide are discharged into the atmosphere and can be formed acid rain.In order to prevent and treat acid rain, accelerate China's flue gas desulfurization and denitrification technology very urgent with industry development.Although domestic multiple research center and manufacturing enterprise are studied exploitation to multiple flue gas desulfurization and denitrification equipment, but these desulphurization denitration equipment all adopt high-temperature flue gas desulphurization denitration technology, high-temperature flue gas desulphurization denitration technology not only needs higher reaction temperature also to need catalyst to participate in reaction, in addition, owing to containing a large amount of flue dust in high-temperature flue gas, these flue dust at high temperature easily make catalyst poisoning, and the difficulty of desulphurization denitration is larger and wayward.
Summary of the invention
The utility model, for above-mentioned technical problem, provides little, the manageable low-temperature flue gas synchronized desulfuring and denitrifying of a kind of desulphurization denitration difficulty equipment.
The technical scheme that the utility model adopts is: a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment, comprise flue tube, one end of described flue tube offers gas approach, the other end of described flue tube offers exhanst gas outlet, it is characterized in that: also comprise heating tank, flue heat pipe, dust removal filter, gas-liquid separator A, gas-liquid separator B, gas-liquid separator C, anti-down cucurbitula, alkali liquor absorption tank, described flue tube is fixed on a side of described heating tank, one end of described flue heat pipe is inserted in described flue tube and its other end is inserted in described heating tank, the exhanst gas outlet of described flue tube is connected by pipeline with the entrance of dust removal filter, the entrance of described gas-liquid separator A is connected by pipeline with the outlet of described dust removal filter, the gas vent of described gas-liquid separator A is connected by pipeline with the entrance of gas-liquid separator B, the entrance of described gas-liquid separator C is connected by pipeline with the gas vent of described gas-liquid separator B, the gas vent of described gas-liquid separator C is connected by pipeline with the entrance of anti-down cucurbitula, the outlet of described anti-down cucurbitula is connected by pipeline with alkali liquor absorption tank, the top of described gas-liquid separator A is fixed with cooler A, the top of gas-liquid separator B is fixed with cooler B, the top of gas-liquid separator C is fixed with cooler C, described flue tube, dust removal filter, gas-liquid separator A, gas-liquid separator B, gas-liquid separator C, anti-down cucurbitula, on connecting line between alkali liquor absorption tank, be fixed with respectively non-return valve.
Described dust removal filter comprises bag-type dust filter, electrostatic precipitation filter, and one end of described bag-type dust filter is connected with flue tube and its other end is connected with electrostatic precipitation filter, and electrostatic precipitation filter is connected with gas-liquid separator A.
Also comprise alkali lye heat pipe, described alkali liquor absorption tank is fixed on the opposite side of described heating tank, and one end of described alkali lye heat pipe is inserted in described heating tank and its other end is inserted in described alkali liquor absorption tank.
The top of described gas-liquid separator A, gas-liquid separator B, gas-liquid separator C is fixed with respectively thermistor.
Temperature in described gas-liquid separator A is 25 DEG C～40 DEG C, and the temperature in described gas-liquid separator B is-9 DEG C～20 DEG C, and the temperature in described gas-liquid separator C is-15 DEG C～-10 DEG C.
On described flue heat pipe, alkali lye heat pipe, be fixed with respectively fin.
The beneficial effects of the utility model are:
1, flue tube is fixed on a side of heating tank, one end of flue heat pipe is inserted in flue tube and its other end is inserted in heating tank, flue heat pipe is transmitted to the heat of high-temperature flue gas in heating tank, make full use of high-temperature flue gas in latent heat, save the energy;
2, the exhanst gas outlet of flue tube and the entrance of dust removal filter are connected by pipeline, and dust removal filter carries out dust removal operation to flue gas, improve the cleanliness factor of flue gas;
3, the entrance of gas-liquid separator A is connected by pipeline with the outlet of dust removal filter, the gas vent of gas-liquid separator A is connected by pipeline with the entrance of gas-liquid separator B, the entrance of gas-liquid separator C is connected by pipeline with the gas vent of gas-liquid separator B, the top of gas-liquid separator A is fixed with cooler A, the top of gas-liquid separator B is fixed with cooler B, the top of gas-liquid separator C is fixed with cooler C, by cooler A, cooler B, cooler C is respectively to gas-liquid separator A, gas-liquid separator B, gas-liquid separator C implements refrigerating operation, gas-liquid separator A, gas-liquid separator B, temperature in gas-liquid separator C is suitable for respectively sulfur trioxide, nitrogen dioxide, sulfur dioxide is condensed into liquid, desulphurization denitration difficulty is little, easy to control,
4, the gas vent of gas-liquid separator C and the entrance of anti-down cucurbitula are connected by pipeline, the outlet of anti-down cucurbitula is connected by pipeline with alkali liquor absorption tank, anti-down cucurbitula prevents that the acid residual air in flue gas from being absorbed rear alkali lye by alkali liquor absorption tank and being entered in gas-liquid separator C by suck-back, safer, reliable;
5, on the connecting line between flue tube, dust removal filter, gas-liquid separator A, gas-liquid separator B, gas-liquid separator C, anti-down cucurbitula, alkali liquor absorption tank, be fixed with respectively non-return valve, effectively prevent fluid refluence phenomenon;
6, dust removal filter comprises bag-type dust filter, electrostatic precipitation filter, adopts dual dust removal filter, and dust removal and filtration is effective, dedusting is thorough.
7, alkali liquor absorption tank is fixed on the opposite side of heating tank, one end of alkali lye heat pipe is inserted in heating tank and its other end is inserted in alkali liquor absorption tank, sour gas and alkali lye can produce a large amount of heat in course of reaction, these heats are transmitted in heating tank by alkali lye heat pipe, make full use of latent heat;
8, the top of gas-liquid separator A, gas-liquid separator B, gas-liquid separator C is fixed with respectively thermistor, monitors the gas flow temperature in gas-liquid separator by thermistor, is convenient to control;
9, the temperature in gas-liquid separator A is 25 DEG C～40 DEG C, temperature in gas-liquid separator B is-9 DEG C～20 DEG C, temperature in gas-liquid separator C is-15 DEG C～-10 DEG C, sulfur trioxide is condensed into liquid in gas-liquid separator A, nitrogen dioxide is condensed into liquid in gas-liquid separator B, sulfur dioxide is condensed into liquid in gas-liquid separator C, sulfan, sulfur dioxide are used for the preparation of sulfuric acid or sulfate, liquid nitrogen dioxide is for the preparation of nitric acid or nitrate, and three kinds of composition fractional condensations, good separating effect are also supplied raw materials for chemical industry;
10, on flue heat pipe, alkali lye heat pipe, be fixed with respectively fin, good heat conduction effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
In figure, 1-flue tube, 2-gas approach, 3-exhanst gas outlet, 4-heating tank, 5-flue heat pipe, 6-dust removal filter, 7-gas-liquid separator A, 8-gas-liquid separator B, 9-gas-liquid separator C, the anti-down cucurbitula of 10-, 11-alkali liquor absorption tank, 12-cooler A, 13-cooler B, 14-cooler C, 15-non-return valve, 16-alkali lye heat pipe, 17-thermistor, 18-fin, 19-bag-type dust filter, 20-electrostatic precipitation filter.
Embodiment
As shown in Figure 1, a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment, comprises flue tube 1, heating tank 4, flue heat pipe 5, dust removal filter 6, gas-liquid separator A7, gas-liquid separator B8, gas-liquid separator C9, anti-down cucurbitula 10, alkali liquor absorption tank 11, one end of flue tube 1 offers gas approach 2, the other end of flue tube 1 offers exhanst gas outlet 3, flue tube 1 is fixed on a side of heating tank 4, one end of flue heat pipe 5 is inserted in flue tube 1 and its other end is inserted in heating tank 4, the exhanst gas outlet 3 of flue tube 1 is connected by pipeline with the entrance of dust removal filter 6, the entrance of gas-liquid separator A7 is connected by pipeline with the outlet of dust removal filter 6, the gas vent of gas-liquid separator A7 is connected by pipeline with the entrance of gas-liquid separator B8, the entrance of gas-liquid separator C9 is connected by pipeline with the gas vent of gas-liquid separator B8, the gas vent of gas-liquid separator C9 is connected by pipeline with the entrance of anti-down cucurbitula 10, the outlet of anti-down cucurbitula 10 is connected by pipeline with alkali liquor absorption tank 11, the top of gas-liquid separator A7 is fixed with cooler A12, the top of gas-liquid separator B8 is fixed with cooler B13, the top of gas-liquid separator C9 is fixed with cooler C14, flue tube 1, dust removal filter 6, gas-liquid separator A7, gas-liquid separator B8, gas-liquid separator C9, anti-down cucurbitula 10, on connecting line between alkali liquor absorption tank 11, be fixed with respectively non-return valve 15.
Dust removal filter 6 comprises bag-type dust filter 19, electrostatic precipitation filter 20, and one end of bag-type dust filter 19 is connected with flue tube 1 and its other end is connected with electrostatic precipitation filter 20, and electrostatic precipitation filter 20 is connected with gas-liquid separator A7.
Also comprise alkali lye heat pipe 16, alkali liquor absorption tank 11 is fixed on the opposite side of heating tank 4, and one end of alkali lye heat pipe 16 is inserted in heating tank 4 and its other end is inserted in alkali liquor absorption tank 11.
The top of gas-liquid separator A7, gas-liquid separator B8, gas-liquid separator C9 is fixed with respectively thermistor 17.
Temperature in gas-liquid separator A7 is 25 DEG C～40 DEG C, and the temperature in gas-liquid separator B8 is-9 DEG C～20 DEG C, and the temperature in gas-liquid separator C9 is-15 DEG C～-10 DEG C.
On flue heat pipe 5, alkali lye heat pipe 16, be fixed with respectively fin 18.
Operation principle
As shown in Figure 1, flue gas enters in flue tube 1 by gas approach 2, flue heat pipe 5 is transmitted in heating tank 4 heat of flue gas for heating the fluid in heating tank 4, the temperature of flue gas reduces, bag-type dust filter 19 is discharged and entered successively to flue gas from exhanst gas outlet 3, in electrostatic precipitation filter 20, bag-type dust filter 19, electrostatic precipitation filter 20 is by the dust filtering in flue gas, the boiling point of sulfur trioxide is 44.8 DEG C, the boiling point of nitrogen dioxide is 21.1 DEG C, the boiling point of sulfur dioxide is-10 DEG C, temperature in gas-liquid separator A7 is 25 DEG C～40 DEG C, temperature in gas-liquid separator B8 is-9 DEG C～20 DEG C, temperature in gas-liquid separator C9 is-15 DEG C～-10 DEG C, sulfur trioxide is condensed into liquid in gas-liquid separator A7, nitrogen dioxide is condensed into liquid in gas-liquid separator B8, sulfur dioxide is condensed into liquid in gas-liquid separator C9, sulfan, sulfur dioxide is for the preparation of sulfuric acid or sulfate, liquid nitrogen dioxide is for the preparation of nitric acid or nitrate, sour gas in remaining flue gas absorbs by alkali liquor absorption tank 11, sour gas and alkali lye can produce heat in course of reaction, these heats are transmitted in heating tank 4 by alkali lye heat pipe 16.
Above 1 embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should still belonging to patent covering scope of the present utility model.
Claims (6)
1. a low-temperature flue gas synchronized desulfuring and denitrifying equipment, comprise flue tube, one end of described flue tube offers gas approach, the other end of described flue tube offers exhanst gas outlet, it is characterized in that: also comprise heating tank, flue heat pipe, dust removal filter, gas-liquid separator A, gas-liquid separator B, gas-liquid separator C, anti-down cucurbitula, alkali liquor absorption tank, described flue tube is fixed on a side of described heating tank, one end of described flue heat pipe is inserted in described flue tube and its other end is inserted in described heating tank, the exhanst gas outlet of described flue tube is connected by pipeline with the entrance of dust removal filter, the entrance of described gas-liquid separator A is connected by pipeline with the outlet of described dust removal filter, the gas vent of described gas-liquid separator A is connected by pipeline with the entrance of gas-liquid separator B, the entrance of described gas-liquid separator C is connected by pipeline with the gas vent of described gas-liquid separator B, the gas vent of described gas-liquid separator C is connected by pipeline with the entrance of anti-down cucurbitula, the outlet of described anti-down cucurbitula is connected by pipeline with alkali liquor absorption tank, the top of described gas-liquid separator A is fixed with cooler A, the top of gas-liquid separator B is fixed with cooler B, the top of gas-liquid separator C is fixed with cooler C, described flue tube, dust removal filter, gas-liquid separator A, gas-liquid separator B, gas-liquid separator C, anti-down cucurbitula, on connecting line between alkali liquor absorption tank, be fixed with respectively non-return valve.
2. a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment according to claim 1, it is characterized in that: described dust removal filter comprises bag-type dust filter, electrostatic precipitation filter, one end of described bag-type dust filter is connected with flue tube and its other end is connected with electrostatic precipitation filter, and electrostatic precipitation filter is connected with gas-liquid separator A.
3. a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment according to claim 1, it is characterized in that: also comprise alkali lye heat pipe, described alkali liquor absorption tank is fixed on the opposite side of described heating tank, and one end of described alkali lye heat pipe is inserted in described heating tank and its other end is inserted in described alkali liquor absorption tank.
4. a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment according to claim 1, is characterized in that: the top of described gas-liquid separator A, gas-liquid separator B, gas-liquid separator C is fixed with respectively thermistor.
5. a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment according to claim 1, it is characterized in that: the temperature in described gas-liquid separator A is 25 DEG C～40 DEG C, temperature in described gas-liquid separator B is-9 DEG C～20 DEG C, and the temperature in described gas-liquid separator C is-15 DEG C～-10 DEG C.
6. a kind of low-temperature flue gas synchronized desulfuring and denitrifying equipment according to claim 1, is characterized in that: on described flue heat pipe, alkali lye heat pipe, be fixed with respectively fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211074.5U CN203916389U (en) | 2014-04-28 | 2014-04-28 | Low-temperature flue gas synchronized desulfuring and denitrifying equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211074.5U CN203916389U (en) | 2014-04-28 | 2014-04-28 | Low-temperature flue gas synchronized desulfuring and denitrifying equipment |
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| CN203916389U true CN203916389U (en) | 2014-11-05 |
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| CN201420211074.5U Expired - Fee Related CN203916389U (en) | 2014-04-28 | 2014-04-28 | Low-temperature flue gas synchronized desulfuring and denitrifying equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152462A (en) * | 2019-06-18 | 2019-08-23 | 中国华能集团有限公司 | A kind of cryogenic condensation flue gas integration desulfurization denitration system and method |
| CN112058013A (en) * | 2020-09-07 | 2020-12-11 | 上海海事大学 | Flue gas processing apparatus based on low temperature gas separation |
-
2014
- 2014-04-28 CN CN201420211074.5U patent/CN203916389U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152462A (en) * | 2019-06-18 | 2019-08-23 | 中国华能集团有限公司 | A kind of cryogenic condensation flue gas integration desulfurization denitration system and method |
| CN112058013A (en) * | 2020-09-07 | 2020-12-11 | 上海海事大学 | Flue gas processing apparatus based on low temperature gas separation |
| CN112058013B (en) * | 2020-09-07 | 2022-07-26 | 上海海事大学 | Flue gas processing apparatus based on low temperature gas separation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |