CN206478667U - A kind of fume afterheat cyclic utilization system heated for high-salt wastewater - Google Patents
A kind of fume afterheat cyclic utilization system heated for high-salt wastewater Download PDFInfo
- Publication number
- CN206478667U CN206478667U CN201720061540.XU CN201720061540U CN206478667U CN 206478667 U CN206478667 U CN 206478667U CN 201720061540 U CN201720061540 U CN 201720061540U CN 206478667 U CN206478667 U CN 206478667U
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- China
- Prior art keywords
- flue
- salt wastewater
- heat exchanger
- smoke gas
- evaporator
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model discloses a kind of fume afterheat cyclic utilization system heated for high-salt wastewater, including boiler, control valve, chimney, smoke gas afterheat heat exchanger and evaporator；The boiler is connected to chimney by the second flue, and the second flue upper end is provided with the first flue, and the two ends of the first flue are connected with the second flue, smoke gas afterheat heat exchanger are provided with the middle part of the second flue, smoke gas afterheat heat exchanger is connected with evaporator.The fume afterheat cyclic utilization system for being used for high-salt wastewater heating realizes effective utilization to fume waste heat by smoke gas afterheat heat exchanger；By-pass flue is set to avoid because the increase of smoke gas afterheat heat exchanger resistance causes the phenomenon of blower fan overload operation；High-salt wastewater is heated by high-temperature flue gas, the discharge capacity of the pollutants such as the heating quantity of steam, combustion the consumption of coal, carbon dioxide of evaporator is reduced, has saved the energy.
Description
Technical field
The utility model is related to energy-conserving and emission-cutting technology field, and specifically a kind of fume afterheat heated for high-salt wastewater is followed
Ring utilizes system.
Background technology
In coal-fired, jet dynamic control, boiler various heat losses maximum is fume waste heat, typically constitutes from boiler heat loss
60%~70%.In traditional handicraft, the flue gas of boiler discharge sends into desulphurization system through blower fan, and high-temperature flue gas passes through lime slurry
Mist cooling is directly discharged in air after completing desulfurization.In this process, the heat of boiler smoke it is substantially not utilized and
Directly slattern, the effective rate of utilization of fume waste heat is low, cause the waste of the energy.
The country is for the near-zero release processing of the waste water such as steam power plant's desulfurization wastewater, Circulating water effluent, film process concentrated water, tradition
Method uses membrane technology to concentrate waste water high power for high-salt wastewater, and crystallization is evaporated to high-salt wastewater by evaporator.In the presence of
Following shortcoming：The heating quantity of steam of evaporator is larger, and combustion the consumption of coal is big, cause the discharge capacitys of the pollutants such as carbon dioxide compared with
Greatly, it also result in the loss of the energy.
Utility model content
The purpose of this utility model is a kind of fume afterheat cyclic utilization system heated for high-salt wastewater of offer, with
The problem of solving to propose in above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of fume afterheat cyclic utilization system heated for high-salt wastewater, including boiler, control valve, chimney, cigarette
Gas afterheat heat exchanger and evaporator；The boiler is connected to chimney by the second flue, and the second flue upper end is provided with the first cigarette
Road, the two ends of the first flue are connected with the second flue, are provided with smoke gas afterheat heat exchanger in the middle part of the second flue, more than flue gas
Heat exchanger is connected with evaporator.
It is used as further program of the utility model：Control valve is installed in the middle part of first flue.
It is used as further program of the utility model：Be connected with the smoke gas afterheat heat exchanger high-salt wastewater water inlet pipe and
High-salt wastewater outlet pipe, and smoke gas afterheat heat exchanger is connected to evaporator by high-salt wastewater outlet pipe.
It is used as further program of the utility model：The feeding temperature of the evaporator is controlled at 55-65 DEG C.
It is used as further program of the utility model：The feeding temperature of the evaporator is controlled at 60-65 DEG C.
Compared with prior art, the beneficial effects of the utility model are：
Fume afterheat is applied to heating high-salt wastewater by the fume afterheat cyclic utilization system for being used for high-salt wastewater heating,
With advantages below：
(1) the utility model realizes effective utilization to fume waste heat by smoke gas afterheat heat exchanger；
(2) the utility model sets by-pass flue for smoke gas afterheat heat exchanger, passes through adjusting control valve door shunting part
Flue gas, is avoided because the increase of smoke gas afterheat heat exchanger resistance causes the phenomenon of blower fan overload operation with this；
(3) the utility model is heated by high-temperature flue gas to high-salt wastewater, reduces the heating quantity of steam of evaporator,
Combustion the consumption of coal is reduced simultaneously, is reduced the discharge of the pollutants such as carbon dioxide, is realized the saving of the energy.
Brief description of the drawings
Fig. 1 is the structural representation of the fume afterheat cyclic utilization system heated for high-salt wastewater.
Wherein：1- boilers；2- control valves；3- chimneys；4- smoke gas afterheat heat exchangers；5- evaporators；6- high-salt wastewaters enter
Water pipe；7- high-salt wastewater outlet pipes；The flues of 8- first；The flues of 9- second.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of fume afterheat cyclic utilization system heated for high-salt wastewater, including boiler 1, control valve
Door 2, chimney 3, smoke gas afterheat heat exchanger 4 and evaporator 5；The boiler 1 is connected to chimney 3, the second flue by the second flue 9
9 upper ends are provided with the first flue 8, and the two ends of the first flue 8 are connected with the second flue 9, the middle part peace of first flue 8
Equipped with control valve 2, the middle part of the second flue 9 is provided with smoke gas afterheat heat exchanger 4, and side is set for smoke gas afterheat heat exchanger 4
Smoke uptake is the first flue 8, shunts partial fume by adjusting control valve door 2, is avoided with this because of the resistance of smoke gas afterheat heat exchanger 4
Increase causes the phenomenon of blower fan overload operation, and fan outlet sets pressure monitoring device, by outlet pressure monitoring device come
The open degree of adjusting control valve door 2, effective utilization to fume waste heat can be realized by smoke gas afterheat heat exchanger 4, more than flue gas
High-salt wastewater water inlet pipe 6 and high-salt wastewater outlet pipe 7 are connected with heat exchanger 4, and smoke gas afterheat heat exchanger 4 is useless by high salt
Water outlet pipe 7 is connected to evaporator 5；High-salt wastewater enters smoke gas afterheat heat exchanger 4 by high-salt wastewater water inlet pipe 6, and boiler 1 is produced
High-temperature flue gas by the second flue 9 enter smoke gas afterheat heat exchanger 4, by smoke gas afterheat heat exchanger 4 cause high-temperature flue gas to height
Salt waste water is heated, and the high-salt wastewater after heating enters evaporator 5 through high-salt wastewater outlet pipe 7, and evaporator 5 is to high-salt wastewater
Crystallization treatment is evaporated, the heating quantity of steam of evaporator 5 is reduced, while reducing combustion the consumption of coal, reduces carbon dioxide
Deng the discharge of pollutant, the saving of the energy is realized；The feeding temperature of the evaporator 5 is controlled at 55-65 DEG C, it is preferred that institute
The feeding temperature for stating evaporator 5 is controlled at 60-65 DEG C.
Operation principle of the present utility model is：The utility model on the basis of existing technology, by remaining heat of flue gas from steam power plant
Heating applied to high-salt wastewater.High-salt wastewater enters smoke gas afterheat heat exchanger 4 by high-salt wastewater water inlet pipe 6, what boiler 1 was produced
High-temperature flue gas enters smoke gas afterheat heat exchanger 4 by the second flue 9, causes high-temperature flue gas to high salt by smoke gas afterheat heat exchanger 4
Waste water is heated, and the high-salt wastewater after heating enters evaporator 5 through high-salt wastewater outlet pipe 7, and evaporator 5 enters to high-salt wastewater
The processing of row evaporative crystallization, reduces the heating quantity of steam of evaporator 5, while reducing combustion the consumption of coal, reduces carbon dioxide etc.
The discharge of pollutant, realizes the saving of the energy；Set by-pass flue to be the first flue 8 for smoke gas afterheat heat exchanger 4, pass through
Adjusting control valve door 2 shunts partial fume, is avoided with this because the increase of the resistance of smoke gas afterheat heat exchanger 4 causes blower fan overload operation
Phenomenon, effective utilization to fume waste heat can be realized by smoke gas afterheat heat exchanger 4.
Fume afterheat is applied to heating high-salt wastewater by the fume afterheat cyclic utilization system for being used for high-salt wastewater heating,
With advantages below：
(1) the utility model realizes effective utilization to fume waste heat by smoke gas afterheat heat exchanger 4；
(2) the utility model sets by-pass flue for smoke gas afterheat heat exchanger 4, passes through adjusting control valve 2 distributary divisions of door
Divide flue gas, avoided with this because the increase of the resistance of smoke gas afterheat heat exchanger 4 causes the phenomenon of blower fan overload operation；
(3) the utility model is heated by high-temperature flue gas to high-salt wastewater, reduces the heating steam of evaporator 5
Amount, while reducing combustion the consumption of coal, reduces the discharge of the pollutants such as carbon dioxide, realizes the saving of the energy.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (5)
1. a kind of fume afterheat cyclic utilization system heated for high-salt wastewater, it is characterised in that including boiler (1), control
Valve (2), chimney (3), smoke gas afterheat heat exchanger (4) and evaporator (5)；The boiler (1) is connected to by the second flue (9)
Chimney (3), the second flue (9) upper end is provided with the first flue (8), and the two ends of the first flue (8) are connected with the second flue (9)
It is logical, smoke gas afterheat heat exchanger (4) is installed, smoke gas afterheat heat exchanger (4) is connected with evaporator (5) in the middle part of the second flue (9).
2. the fume afterheat cyclic utilization system according to claim 1 heated for high-salt wastewater, it is characterised in that institute
State and control valve (2) is installed in the middle part of the first flue (8).
3. the fume afterheat cyclic utilization system according to claim 1 heated for high-salt wastewater, it is characterised in that institute
State and high-salt wastewater water inlet pipe (6) and high-salt wastewater outlet pipe (7) are connected with smoke gas afterheat heat exchanger (4), and fume afterheat is changed
Hot device (4) is connected to evaporator (5) by high-salt wastewater outlet pipe (7).
4. the fume afterheat cyclic utilization system according to claim 1 heated for high-salt wastewater, it is characterised in that institute
The feeding temperature for stating evaporator (5) is controlled at 55-65 DEG C.
5. the fume afterheat cyclic utilization system according to claim 1 heated for high-salt wastewater, it is characterised in that institute
The feeding temperature for stating evaporator (5) is controlled at 60-65 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061540.XU CN206478667U (en) | 2017-01-18 | 2017-01-18 | A kind of fume afterheat cyclic utilization system heated for high-salt wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061540.XU CN206478667U (en) | 2017-01-18 | 2017-01-18 | A kind of fume afterheat cyclic utilization system heated for high-salt wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478667U true CN206478667U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720061540.XU Expired - Fee Related CN206478667U (en) | 2017-01-18 | 2017-01-18 | A kind of fume afterheat cyclic utilization system heated for high-salt wastewater |
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| CN (1) | CN206478667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280032A (en) * | 2019-07-29 | 2019-09-27 | 唐俊 | A kind of recovery system for energy, moisture and dust in high-temperature flue gas |
-
2017
- 2017-01-18 CN CN201720061540.XU patent/CN206478667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280032A (en) * | 2019-07-29 | 2019-09-27 | 唐俊 | A kind of recovery system for energy, moisture and dust in high-temperature flue gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170908 Termination date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |