CN209706012U - A kind of smoke reutilizer and waste heat boiler - Google Patents
A kind of smoke reutilizer and waste heat boiler Download PDFInfo
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- CN209706012U CN209706012U CN201920408018.3U CN201920408018U CN209706012U CN 209706012 U CN209706012 U CN 209706012U CN 201920408018 U CN201920408018 U CN 201920408018U CN 209706012 U CN209706012 U CN 209706012U
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Abstract
The utility model relates to flue gas reheat technical fields, more particularly to a kind of smoke reutilizer, it is arranged on waste heat boiler, the air inlet general pipeline and outlet air general pipeline for being vertically installed at the air-cooled heating tube of waste heat boiler burner hearth side by side including more, waste heat boiler body exterior being set, the air inlet general pipeline is connect by more winding pipes with the air inlet of more air-cooled heating tubes, and the outlet air general pipeline is connect by more outlet air branch pipes with the gas outlet of more air-cooled heating tubes.A kind of waste heat boiler is further related to, including waste heat boiler ontology and above-mentioned smoke reutilizer, the water-cooling wall of the waste heat boiler burner hearth is changed to the smoke reutilizer.The utility model makes full use of fume afterheat on the basis of meeting and heating up to low-temperature flue gas, and the circulationization for realizing fume afterheat utilizes, and economizes on resources, and reduces input cost.
Description
Technical field
The utility model relates to flue gas reheat technical fields, and in particular to a kind of smoke reutilizer and waste heat boiler.
Background technique
Under the increasingly strict environmental requirement of country, SCR denitration technology under bletilla cryogenic conditions is taken off for flue gas and is required
Reheating is carried out to low-temperature flue gas.Flue gas take off it is white need to be increased to 80 DEG C or more to the low-temperature flue gas after chimney desulfurization is entered, and low temperature
SCR denitration needs for flue-gas temperature to be increased to 200 DEG C or more.
In existing flue gas reheat equipment, there are GGH, MGGH, steam reheating and combustion gas thermal technology again.GGH, MGGH are to utilize
Former flue gas to low-temperature flue gas carry out reheating, have take up a large area, heat exchange efficiency is low and equipment material requirement.
Steam reheater and combustion gas reheater are heated in special equipment to flue gas using high steam or combustion gas,
It needs to consume a large amount of energy and equipment investment is big.
Summary of the invention
In order to solve, GGH, MGGH, steam reheater and combustion gas reheater conversion efficiency are low, equipment investment is big, energy consumption
Big problem, the utility model provide a kind of smoke reutilizer and waste heat boiler, heat up basis meeting to low-temperature flue gas
On make full use of fume afterheat, realize fume afterheat circulationization utilize, economize on resources, reduce input cost.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of smoke reutilizer of the utility model is arranged on waste heat boiler, including more are vertically installed at side by side
The air-cooled heating tube of waste heat boiler burner hearth, the air inlet general pipeline and outlet air general pipeline that waste heat boiler body exterior is set, the air inlet
General pipeline is connect by more winding pipes with the air inlet of more air-cooled heating tubes, and the outlet air general pipeline passes through more outlet air branch pipes
It is connect with the gas outlet of more air-cooled heating tubes.
Further, temperature control valve (TCV) is provided in the every winding pipe.
Further, the head end of the air inlet general pipeline is fixedly connected with cold flue gas import.
Further, air inlet valve is provided on the air inlet general pipeline of the neighbouring cold flue gas import.
Further, the tail end of the air inlet general pipeline is fixedly connected with urgent air inlet.
Further, urgent air inlet valve is provided on the air inlet general pipeline of the neighbouring urgent air inlet.
Further, one end of the outlet air general pipeline is shut, and the other end is fixedly connected with hot fume outlet.
Further, gas outlet valve is provided on the outlet air general pipeline of neighbouring hot fume outlet.
A kind of waste heat boiler, including waste heat boiler ontology and above-mentioned smoke reutilizer, by the waste heat boiler burner hearth
Water-cooling wall is changed to the smoke reutilizer.
Further, the bottom of the waste heat boiler ontology offers high-temperature flue gas import, and upper side offers high temperature
Exhanst gas outlet.
Compared with prior art, the positive beneficial effect of the utility model is:
1, a kind of smoke reutilizer of the utility model needs reheating low temperature since the flue-gas temperature in waste heat boiler is high
Flue gas can fully absorb the thermal energy in high-temperature flue gas in air-cooled heating tube, required temperature is promptly raised to, especially low
Higher temperature plays a key effect to denitration effect in warm SCR denitration device.
2, due to being both provided with waste heat boiler in Steelmaking, and most of enterprise is lower to steam utilization,
The utility model, without using boiler water, makes full use of flue gas without consuming the energy using high-temperature flue gas reheating in waste heat boiler
Waste heat, the circulationization for realizing fume afterheat are utilized, are economized on resources, and input cost reduces.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of smoke reutilizer of the utility model embodiment；
Fig. 2 is the A of Fig. 1 to structural schematic diagram；
Fig. 3 is the B of Fig. 1 to structural schematic diagram；
Fig. 4 is the C of Fig. 1 to structural schematic diagram.
Meaning representated by serial number in figure are as follows: 1. waste heat boilers, 2. air-cooled heating tubes, 3. air inlet general pipeline, 4. outlet air general pipeline,
5. winding pipe, 6. outlet air branch pipes, 7. temperature control valve (TCV)s, 8. cold flue gas imports, 9. air inlet valves, 10. urgent air inlets,
11. urgent air inlet valve, the outlet of 12. hot fumes, 13. gas outlet valves, 14. high-temperature flue gas import, 15. high-temperature flue gas outlet.
Specific embodiment
Embodiment one
As shown in Figure 1, a kind of smoke reutilizer of the present embodiment, is arranged on waste heat boiler 1, including more are erected side by side
The air inlet general pipeline 3 and outlet air general pipeline for being directly mounted on the air-cooled heating tube 2 of waste heat boiler burner hearth, waste heat boiler body exterior being set
4, the air inlet general pipeline 3 is connect by more winding pipes 5 with the air inlet of more air-cooled heating tubes 2, and the outlet air general pipeline 4 is logical
Excessive root outlet air branch pipe 6 is connect with the gas outlet of more air-cooled heating tubes 2, and the winding pipe 5, outlet air branch pipe 6 are by waste heat pot
Air inlet general pipeline 3, outlet air general pipeline 4 outside furnace 1 are connected with the air-cooled heating tube 2 inside waste heat boiler 1.
In an alternative embodiment, as shown in Figures 2 and 3, the air-cooled heating tube 2, winding pipe 5 and outlet air branch
The quantity of pipe 6 is four, and certainly, the quantity and diameter of air-cooled heating tube 2 can be according to the exhaust gas volumns of low-temperature flue gas and required
Warming temperature determines.The head end of the air inlet general pipeline 3 is connect using flange with cold flue gas import 8, in neighbouring cold flue gas import 8
It is provided with air inlet valve 9 on air inlet general pipeline 3, which is used to control the entrance of low-temperature flue gas, from air inlet general pipeline 3
Four winding pipes 5 of upper extraction, the end of every winding pipe 5 is connect with the air inlet of air-cooled heating tube 2, from outlet air general pipeline 4
Four outlet air branch pipes 6 of upper extraction, the end of every outlet air branch pipe 6 are connect with the gas outlet of air-cooled heating tube 2, the outlet air general pipeline
4 one end is shut, and the other end is connect using flange with hot fume outlet 12, on the outlet air general pipeline 4 of proximity thermal exhanst gas outlet 12
It is provided with gas outlet valve 13, which is used to control the output of flue gas after heating.
In an alternative embodiment, the tail end of the air inlet general pipeline 3 is connect using flange with urgent air inlet 10, In
Urgent air inlet valve 11 is provided on the air inlet general pipeline 3 of the neighbouring urgent air inlet 10.Under special circumstances, air inlet is closed
Mouthful valve 9, opens urgent air inlet valve 11, by urgent air inlet 10 in air-cooled heating tube 2 supplements cold, losing
In the case that low-temperature flue gas is air-cooled, it is ensured that the safe and effective use of the air-cooled wall of waste heat boiler 1.Here, urgent air inlet valve 11,
Solenoid valve or hand-operated valve can be used in air inlet valve 9 and gas outlet valve 13.
In an alternative embodiment, as shown in figure 4, being provided with temperature control valve (TCV) in the every winding pipe 5
7, by the opening and closing of temperature control valve (TCV) 7, adjustment investment or the quantity for reducing air-cooled heating tube 2 reach adjusting temperature
Purpose.Here temperature control valve (TCV) 7 uses self force type temperature regulating valve.
The present embodiment also provides a kind of waste heat boiler 1, including waste heat boiler ontology and above-mentioned smoke reutilizer, by this
The original water-cooling wall of waste heat boiler burner hearth is changed to smoke reutilizer, and the bottom of the waste heat boiler ontology offers high temperature cigarette
Gas import 14, upper side offer high-temperature flue gas outlet 15, flow smoothly in waste heat boiler burner hearth convenient for high-temperature flue gas.
The water-cooling wall of waste heat boiler 1 is transformed into smoke reutilizer by the utility model, when smoke reutilizer work,
Low-temperature flue gas enters from cold flue gas import 8, and the thermal energy of hot fume in waste heat boiler 1 is obtained in air-cooled heating tube 2, through overheating cigarette
12 discharge of gas outlet, to achieve the purpose that flue gas reheat.
The above-mentioned description to embodiment is for that can understand and apply this practical convenient for those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiments without having to go through creative labor.Therefore, those skilled in the art are according to this
The announcement of utility model, does not depart from improvement that the utility model scope is made and modification all should be in the protection of the utility model
Within the scope of.
Claims (10)
1. a kind of smoke reutilizer is arranged on waste heat boiler, which is characterized in that be vertically installed at waste heat side by side including more
The air-cooled heating tube of boiler furnace, the air inlet general pipeline and outlet air general pipeline that waste heat boiler body exterior is set, the air inlet general pipeline
It is connect by more winding pipes with the air inlet of more air-cooled heating tubes, the outlet air general pipeline passes through more outlet air branch pipes and more
The gas outlet of the air-cooled heating tube of root connects.
2. smoke reutilizer according to claim 1, which is characterized in that be provided with temperature in the every winding pipe
Spend regulating valve.
3. smoke reutilizer according to claim 1, which is characterized in that the head end of the air inlet general pipeline is fixedly connected with
Cold flue gas import.
4. smoke reutilizer according to claim 3, which is characterized in that total in the air inlet of the neighbouring cold flue gas import
Air inlet valve is provided on pipe.
5. smoke reutilizer according to claim 1, which is characterized in that the tail end of the air inlet general pipeline is fixedly connected with
Urgent air inlet.
6. smoke reutilizer according to claim 5, which is characterized in that total in the air inlet of the neighbouring urgent air inlet
Urgent air inlet valve is provided on pipe.
7. smoke reutilizer according to claim 1, which is characterized in that one end of the outlet air general pipeline is shut, another
End is fixedly connected with hot fume outlet.
8. smoke reutilizer according to claim 7, which is characterized in that the outlet air in neighbouring hot fume outlet is total
Gas outlet valve is provided on pipe.
9. a kind of waste heat boiler, which is characterized in that including waste heat boiler ontology and flue gas as described in any of the claims 1 to 8
The water-cooling wall of the waste heat boiler burner hearth is changed to the smoke reutilizer by reheat machine.
10. waste heat boiler according to claim 9, which is characterized in that the bottom of the waste heat boiler ontology offers height
Warm gas inlet, upper side offer high-temperature flue gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408018.3U CN209706012U (en) | 2019-03-28 | 2019-03-28 | A kind of smoke reutilizer and waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408018.3U CN209706012U (en) | 2019-03-28 | 2019-03-28 | A kind of smoke reutilizer and waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209706012U true CN209706012U (en) | 2019-11-29 |
Family
ID=68648012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920408018.3U Active CN209706012U (en) | 2019-03-28 | 2019-03-28 | A kind of smoke reutilizer and waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209706012U (en) |
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2019
- 2019-03-28 CN CN201920408018.3U patent/CN209706012U/en active Active
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