CN208349328U - A kind of dedusting of coal-fired hot-water boiler flue gas disappears white waste heat depth recovery system - Google Patents
A kind of dedusting of coal-fired hot-water boiler flue gas disappears white waste heat depth recovery system Download PDFInfo
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- CN208349328U CN208349328U CN201820980777.2U CN201820980777U CN208349328U CN 208349328 U CN208349328 U CN 208349328U CN 201820980777 U CN201820980777 U CN 201820980777U CN 208349328 U CN208349328 U CN 208349328U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
Disappear white waste heat depth recovery system the utility model relates to a kind of dedusting of coal-fired hot-water boiler flue gas.In the utility model, the high-temperature flue gas heat for avoiding directly using the hot water in coal-fired hot-water boiler, but coal-fired hot-water boiler being utilized to generate realizes that waste heat recycles in conjunction with absorption heat pump；Flue gas passes through multiple teflon heat exchangers, so that flue-gas temperature reduces；Vapor condensation in flue gas, the latent heat of condensation for recycling vapor realize that fume afterheat utilizes, achieve the purpose that flue gas minimum discharge；The heat that cold water in water pipe absorbs high-temperature flue gas obtains hot water, and hot water carries out hot promotion by absorption heat pump, further applies heating system etc., realize the purpose of waste heat recovering energy conserving；The amount of water sprayed of desulfurizing tower is reduced, desulfuration efficiency is improved；Multistage teflon heat exchanger can heat low-temperature flue gas, promote smoke evacuation power, slow down chimney corrosion, eliminate white cigarette, recycle high-temperature flue gas sensible heat.
Description
Technical field
A kind of the utility model belongs to energy-saving and emission-reduction field more particularly to dedusting of coal-fired hot-water boiler flue gas disappears white waste heat
Depth recovery system.
Background technique
Currently, the high-temperature flue gas that coal-burning boiler generates typically directly empties, dust particles, SO in flue gas2、 H2SO4、
(SO3) sour gas such as aerosol, HCl will cause environmental pollution, the high temperature energy in flue gas is not also fully used, from
And the disadvantages of causing single boiler purposes, waste water resource, energy loss.
Utility model content
In view of the deficiency of the prior art, the dedusting for providing a kind of coal-fired hot-water boiler flue gas disappears the utility model
Bai Yure depth recovery system.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of dedusting of coal-fired hot-water boiler flue gas disappears
Bai Yure depth recovery system, is characterized in that, including the boiler, air-introduced machine, metal heat-exchange being sequentially communicated from left to right
Device, denitrating tower, teflon heat exchanger I, desulfurizing tower, teflon heat exchanger II and teflon heat exchanger III；
Water pipe I is equipped in the teflon heat exchanger I, described I one end of water pipe is cold water inlet, and the other end goes out for hot water
Mouthful, the cold water inlet and hot water outlet stretch out outside teflon heat exchanger I；Described I one end of teflon heat exchanger enters equipped with flue gas
Mouth I, the other end are equipped with exhanst gas outlet I, and bottom end is equipped with discard solution discharge port I；
The exhanst gas outlet I of the teflon heat exchanger I is connected to the desulfurizing tower；
Water pipe III is equipped in the teflon heat exchanger III, described III one end of water pipe is cooling water outlet, and the other end is hot water
Entrance, the cooling water outlet and hot water inlet stretch out outside teflon heat exchanger III；Described III one end of teflon heat exchanger is equipped with cigarette
Gas entrance III, the other end are equipped with exhanst gas outlet III, and bottom end is equipped with discard solution discharge port III；
The cold water inlet of the water pipe I is connected with the cooling water outlet of the water pipe III by cold water pipeline I, the water pipe
I hot water outlet is connected with the hot water inlet of the water pipe III by hot water line I；
Water pipe II is equipped in the teflon heat exchanger II, II both ends of water pipe are stretched out outside teflon heat exchanger II；Institute
State that II both ends of water pipe pass through cold water pipeline II respectively and hot water line II is connected to absorption heat pump；The teflon heat exchanger II
One end is equipped with smoke inlet II, and the other end is equipped with exhanst gas outlet II, and bottom end is equipped with discard solution discharge port II；
The absorption heat pump is connected to by heating equipment water return pipeline, heating equipment water supply pipe with heating equipment；
The discard solution discharge port I and the discard solution discharge port II are connected to settling tank, and described settling tank one end is connected to institute
State desulfurizing tower；
Water pipe IV is equipped in the metallic recuperator, IV both ends of water pipe are stretched out outside metallic recuperator；The metal changes
Hot device one end is equipped with smoke inlet IV, and the other end is equipped with exhanst gas outlet IV, and bottom end is equipped with discard solution discharge port IV；IV liang of the water pipe
End is connected to absorption heat pump by cold water pipeline III and hot water line III respectively.
The beneficial effects of the utility model are:
1, it in the utility model, avoids directly using the hot water in coal-fired hot-water boiler, but utilizes coal-fired hot-water boiler
The high-temperature flue gas heat of generation realizes that waste heat recycles in conjunction with absorption heat pump；
2, the utility model passes through multiple teflon heat exchangers, so that flue-gas temperature reduces；Vapor condensation in flue gas,
The latent heat of condensation for recycling vapor realizes that fume afterheat utilizes, while meeting coalescence is a large amount of in the vapor condensation process in flue gas
Particle dust and sour gas achieve the purpose that flue gas minimum discharge；The heat that cold water in water pipe absorbs high-temperature flue gas obtains
To hot water, hot water carries out hot promotion by absorption heat pump, further applies heating system etc., realize waste heat recovering energy conserving
Purpose；The amount of water sprayed of desulfurizing tower is reduced, desulfuration efficiency is improved；Multistage teflon heat exchanger can heat low-temperature flue gas, the row of being promoted
Cigarette power slows down chimney corrosion, eliminates white cigarette, recycles high-temperature flue gas sensible heat.
Based on the above technical solution, the utility model can also do following improvement.
Further, the heating equipment water return pipeline is equipped with water circulating pump；The cold water pipeline II is equipped with recirculated water
Pump.
Further, the exhanst gas outlet III is connected to chimney.
Further, Water flow adjusting valve is equipped on the cold water pipeline III and hot water line III.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1, boiler；2, air-introduced machine；3, teflon heat exchanger I；4, desulfurizing tower；5, teflon heat exchanger II；6, fluorine is moulded
Expect heat exchanger III；7, water pipe I；8, cold water inlet；9, hot water outlet；10, smoke inlet I；11, exhanst gas outlet I；12, waste liquid is arranged
Put mouth I；13, water pipe II；14, cold water pipeline II；15, hot water line II；16, smoke inlet II；17, exhanst gas outlet II；18,
Discard solution discharge port II；19, water pipe III；20, cooling water outlet；21, hot water inlet；22, smoke inlet III；23, exhanst gas outlet III；
24, discard solution discharge port III；25, absorption heat pump；26, heating equipment water return pipeline；27, heating equipment water supply pipe；28, heat supply
Equipment；29, water circulating pump；30, settling tank；31, chimney；32, cold water pipeline I；33, hot water line I；34, metallic recuperator；
35, denitrating tower；36, water pipe IV；37, smoke inlet IV；38, exhanst gas outlet IV；39, discard solution discharge port IV；40, cold water pipeline
Ⅲ；41, hot water line III；42, Water flow adjusting valve.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
Embodiment 1
A kind of dedusting of coal-fired hot-water boiler flue gas disappears white waste heat depth recovery system, is characterized in that, including from
Boiler 1 that left-to-right is sequentially communicated, air-introduced machine 2, metallic recuperator 34, denitrating tower 35, teflon heat exchanger I 3, desulfurizing tower 4, fluorine
Plastic heat exchanger II 5 and teflon heat exchanger III 6；
Water pipe I 7 is equipped in the teflon heat exchanger I, described I one end of water pipe is cold water inlet 8, and the other end goes out for hot water
Mouth 9, the cold water inlet and hot water outlet stretch out outside teflon heat exchanger I；Described I one end of teflon heat exchanger enters equipped with flue gas
Mouth I 10, the other end are equipped with exhanst gas outlet I 11, and bottom end is equipped with discard solution discharge port I 12；
The exhanst gas outlet I of the teflon heat exchanger I is connected to the desulfurizing tower；
Water pipe III 19 is equipped in the teflon heat exchanger III, described III one end of water pipe is cooling water outlet 20, and the other end is
Hot water inlet 21, and the cooling water outlet and hot water inlet stretch out outside teflon heat exchanger III；Described III one end of teflon heat exchanger
Equipped with smoke inlet III 22, the other end is equipped with exhanst gas outlet III 23, and bottom end is equipped with discard solution discharge port III 24；
The cold water inlet of the water pipe I is connected with the cooling water outlet of the water pipe III by cold water pipeline I 32, the water
The hot water outlet of pipe I is connected with the hot water inlet of the water pipe III by hot water line I 33；
Water pipe II 13 is equipped in the teflon heat exchanger II, II both ends of water pipe are stretched out outside teflon heat exchanger II；
II both ends of water pipe pass through cold water pipeline II 14 respectively and hot water line II 15 is connected to absorption heat pump 25；The fluoroplastics
Heat exchanger II one end is equipped with smoke inlet II 16, and the other end is equipped with exhanst gas outlet II 17, and bottom end is equipped with discard solution discharge port II 18；
The absorption heat pump is connected by heating equipment water return pipeline 26, heating equipment water supply pipe 27 and heating equipment 28
It is logical；
The discard solution discharge port I and the discard solution discharge port II are connected to settling tank 30, and described settling tank one end is connected to
The desulfurizing tower；
Water pipe IV 36 is equipped in the metallic recuperator, IV both ends of water pipe are stretched out outside metallic recuperator；The metal
Heat exchanger one end is equipped with smoke inlet IV 37, and the other end is equipped with exhanst gas outlet IV 38, and bottom end is equipped with discard solution discharge port IV 39；It is described
IV both ends of water pipe pass through cold water pipeline III 40 respectively and hot water line III 41 is connected to absorption heat pump；
The heating equipment water return pipeline is equipped with water circulating pump 29；The cold water pipeline II is equipped with water circulating pump 29；
The exhanst gas outlet III is connected to chimney 31；
Water flow adjusting valve 42 is equipped on the cold water pipeline III and hot water line III.
The utility model uses in this way, and by air-introduced machine, the flue gas in boiler is introduced metallic recuperator, flue gas temperature
Degree is 300-450 DEG C, and high-temperature flue gas heats the water in the water pipe IV of metallic recuperator, 110-120 in cold water pipeline III
DEG C cold water be heated to 140-150 DEG C, hot water is passed through absorption heat pump via hot water line III, eventually for heating equipment；
After the flue gas of metallic recuperator discharge is via denitrating tower, into teflon heat exchanger I, flue-gas temperature 110-130
DEG C, flue gas enters desulfurizing tower and carries out desulfurization cooling, is cooled to 60-80 DEG C, then be discharged into teflon heat exchanger II, a large amount of vapor
Moisture film is condensed into water pipe outer surface, dust particles, SO in flue gas2、H2SO4、(SO3) sour gas such as aerosol, HCl with
Moisture film comes into full contact with, bonds, adsorb after form liquid；Flue gas cool-down is discharged into teflon heat exchanger III, flue gas is warming up to 45 DEG C
Chimney is discharged into after 65 DEG C；
Water temperature is 70 DEG C in cold water pipeline I, and when flue gas enters teflon heat exchanger I, water pipe I is heated, is heated to 90 DEG C
Hot water enter water pipe III by hot water line I, the low-temperature flue gas in teflon heat exchanger III reduces water temperature, realizes cold water pipe
The cold cycling on road I and hot water line I；
15 DEG C of cold water of water pipe II absorb the heat of flue gas in teflon heat exchanger II, obtain 25 DEG C of hot water, 25 DEG C of hot water
Into absorption heat pump, cooling obtains 15 DEG C of return water；45-55 DEG C of return water in heating equipment enters absorption heat pump, through overheating
55-65 DEG C of hot water is obtained after promotion and is passed through heating equipment, realizes waste heat recycling and reusing；
Waste liquid enters settling tank through discard solution discharge port I and discard solution discharge port II, and the flue gas in settling tank is discharged into desulfurization again
Tower.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
- The white waste heat depth recovery system 1. a kind of dedusting of coal-fired hot-water boiler flue gas disappears, which is characterized in that including from left to right Boiler, air-introduced machine, metallic recuperator, denitrating tower, teflon heat exchanger I, desulfurizing tower, II and of teflon heat exchanger being sequentially communicated Teflon heat exchanger III；Water pipe I is equipped in the teflon heat exchanger I, described I one end of water pipe is cold water inlet, and the other end is hot water outlet, institute It states cold water inlet and hot water outlet stretches out outside teflon heat exchanger I；Described I one end of teflon heat exchanger is equipped with smoke inlet I, separately One end is equipped with exhanst gas outlet I, and bottom end is equipped with discard solution discharge port I；The exhanst gas outlet I of the teflon heat exchanger I is connected to the desulfurizing tower；Water pipe III is equipped in the teflon heat exchanger III, described III one end of water pipe is cooling water outlet, and the other end is hot water inlet, The cooling water outlet and hot water inlet stretch out outside teflon heat exchanger III；Described III one end of teflon heat exchanger is equipped with smoke inlet III, the other end is equipped with exhanst gas outlet III, and bottom end is equipped with discard solution discharge port III；The cold water inlet of the water pipe I is connected with the cooling water outlet of the water pipe III by cold water pipeline I, the water pipe I Hot water outlet is connected with the hot water inlet of the water pipe III by hot water line I；Water pipe II is equipped in the teflon heat exchanger II, II both ends of water pipe are stretched out outside teflon heat exchanger II；The water II both ends of pipe pass through cold water pipeline II respectively and hot water line II is connected to absorption heat pump；Described II one end of teflon heat exchanger Equipped with smoke inlet II, the other end is equipped with exhanst gas outlet II, and bottom end is equipped with discard solution discharge port II；The absorption heat pump is connected to by heating equipment water return pipeline, heating equipment water supply pipe with heating equipment；The discard solution discharge port I and the discard solution discharge port II are connected to settling tank, and described settling tank one end is connected to described de- Sulphur tower；Water pipe IV is equipped in the metallic recuperator, IV both ends of water pipe are stretched out outside metallic recuperator；The metallic recuperator One end is equipped with smoke inlet IV, and the other end is equipped with exhanst gas outlet IV, and bottom end is equipped with discard solution discharge port IV；IV both ends of water pipe point Not Tong Guo cold water pipeline III and hot water line III be connected to absorption heat pump.
- The white waste heat depth recovery system 2. the dedusting of coal-fired hot-water boiler flue gas according to claim 1 disappears, feature exist In the heating equipment water return pipeline is equipped with water circulating pump；The cold water pipeline II is equipped with water circulating pump.
- The white waste heat depth recovery system 3. the dedusting of coal-fired hot-water boiler flue gas according to claim 1 disappears, feature exist In the exhanst gas outlet III is connected to chimney.
- The white waste heat depth recovery system 4. the dedusting of coal-fired hot-water boiler flue gas according to claim 1 disappears, feature exist In being equipped with Water flow adjusting valve on the cold water pipeline III and hot water line III.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820980777.2U CN208349328U (en) | 2018-06-25 | 2018-06-25 | A kind of dedusting of coal-fired hot-water boiler flue gas disappears white waste heat depth recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820980777.2U CN208349328U (en) | 2018-06-25 | 2018-06-25 | A kind of dedusting of coal-fired hot-water boiler flue gas disappears white waste heat depth recovery system |
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| CN208349328U true CN208349328U (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801714A (en) * | 2019-11-13 | 2020-02-18 | 邯郸学院 | Wet smoke plume governing system of thermal power plant |
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2018
- 2018-06-25 CN CN201820980777.2U patent/CN208349328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801714A (en) * | 2019-11-13 | 2020-02-18 | 邯郸学院 | Wet smoke plume governing system of thermal power plant |
| CN110801714B (en) * | 2019-11-13 | 2021-10-29 | 邯郸学院 | Wet smoke plume governing system of thermal power plant |
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